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authorKartik K. Agaram <vc@akkartik.com>2017-04-18 11:33:33 -0700
committerKartik K. Agaram <vc@akkartik.com>2017-04-18 11:33:33 -0700
commit6c52e24e2996a77aa6297b26159003d503aef8a0 (patch)
tree7546851659eca4b166e42c4a5f236caf0a2281f1
parentbd58d18a2308ae5b53a6f5df1e67203739396d8f (diff)
downloadmu-6c52e24e2996a77aa6297b26159003d503aef8a0.tar.gz
3830 - crosslink shape-shifting containers in html
-rw-r--r--exuberant_ctags_rc4
-rw-r--r--html/061text.mu.html26
-rw-r--r--html/064list.mu.html146
-rw-r--r--html/065duplex_list.mu.html238
-rw-r--r--html/066stream.mu.html22
-rw-r--r--html/068random.mu.html20
-rw-r--r--html/070table.mu.html30
-rw-r--r--html/075channel.mu.html82
-rw-r--r--html/084console.mu.html2
-rw-r--r--html/088file.mu.html50
-rw-r--r--html/090scenario_filesystem_test.mu.html34
-rw-r--r--html/092socket.mu.html28
-rw-r--r--html/channel.mu.html16
-rw-r--r--html/chessboard.mu.html56
-rw-r--r--html/edit/001-editor.mu.html18
-rw-r--r--html/edit/002-typing.mu.html24
-rw-r--r--html/edit/003-shortcuts.mu.html134
-rw-r--r--html/edit/004-programming-environment.mu.html8
-rw-r--r--html/edit/005-sandbox.mu.html6
-rw-r--r--html/edit/006-sandbox-copy.mu.html4
-rw-r--r--html/edit/011-errors.mu.html4
-rw-r--r--html/edit/012-editor-undo.mu.html144
-rw-r--r--html/filesystem.mu.html4
-rw-r--r--html/http-client.mu.html4
-rw-r--r--html/http-server.mu.html4
-rw-r--r--html/lambda-to-mu.mu.html16
-rw-r--r--html/nqueens.mu.html10
27 files changed, 567 insertions, 567 deletions
diff --git a/exuberant_ctags_rc b/exuberant_ctags_rc
index b3057d9a..e8a6828a 100644
--- a/exuberant_ctags_rc
+++ b/exuberant_ctags_rc
@@ -4,7 +4,7 @@
 --regex-mu=/^def![ \t]+([^ \t]*)/\1/d,definition/
 --regex-mu=/^recipe[ \t]+([^ \t]*)/\1/d,definition/
 --regex-mu=/^recipe![ \t]+([^ \t]*)/\1/d,definition/
---regex-mu=/^container[ \t]+([^ \t]*)/\1/s,struct/
---regex-mu=/^exclusive-container[ \t]+([^ \t]*)/\1/u,union/
+--regex-mu=/^container[ \t]+([^ \t:]*)/\1/s,struct/
+--regex-mu=/^exclusive-container[ \t]+([^ \t:]*)/\1/u,union/
 --regex-mu=/$x/x/x/e/ --------- next option is for way-points in Mu
 --regex-mu=/^[ \t]*(<[^ \t]*>)/\1/d,definition/
diff --git a/html/061text.mu.html b/html/061text.mu.html
index 0a5b7a4e..bc269d39 100644
--- a/html/061text.mu.html
+++ b/html/061text.mu.html
@@ -185,12 +185,12 @@ if ('onhashchange' in window) {
 <span id="L123" class="LineNr"> 123 </span>]
 <span id="L124" class="LineNr"> 124 </span>
 <span id="L125" class="LineNr"> 125 </span><span class="Comment"># A new type to help incrementally construct texts.</span>
-<span id="L126" class="LineNr"> 126 </span><span class="muData">container</span> buffer:_elem [
+<span id="L126" class="LineNr"> 126 </span><span class="muData">container</span> <a href='061text.mu.html#L126'>buffer</a>:_elem [
 <span id="L127" class="LineNr"> 127 </span>  length:num
 <span id="L128" class="LineNr"> 128 </span>  data:&amp;:@:_elem
 <span id="L129" class="LineNr"> 129 </span>]
 <span id="L130" class="LineNr"> 130 </span>
-<span id="L131" class="LineNr"> 131 </span><span class="muRecipe">def</span> <a href='061text.mu.html#L131'>new-buffer</a> <a href='075channel.mu.html#L379'>capacity</a>:num<span class="muRecipe"> -&gt; </span>result:&amp;:buffer:_elem [
+<span id="L131" class="LineNr"> 131 </span><span class="muRecipe">def</span> <a href='061text.mu.html#L131'>new-buffer</a> <a href='075channel.mu.html#L379'>capacity</a>:num<span class="muRecipe"> -&gt; </span>result:&amp;:<a href='061text.mu.html#L126'>buffer</a>:_elem [
 <span id="L132" class="LineNr"> 132 </span>  <span class="Constant">local-scope</span>
 <span id="L133" class="LineNr"> 133 </span>  <span class="Constant">load-ingredients</span>
 <span id="L134" class="LineNr"> 134 </span>  result <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(buffer _elem): type<span class="Delimiter">}</span>
@@ -205,7 +205,7 @@ if ('onhashchange' in window) {
 <span id="L143" class="LineNr"> 143 </span>  <span class="muControl">return</span> result
 <span id="L144" class="LineNr"> 144 </span>]
 <span id="L145" class="LineNr"> 145 </span>
-<span id="L146" class="LineNr"> 146 </span><span class="muRecipe">def</span> <a href='061text.mu.html#L146'>grow-buffer</a> buf:&amp;:buffer:_elem<span class="muRecipe"> -&gt; </span>buf:&amp;:buffer:_elem [
+<span id="L146" class="LineNr"> 146 </span><span class="muRecipe">def</span> <a href='061text.mu.html#L146'>grow-buffer</a> buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:_elem<span class="muRecipe"> -&gt; </span>buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:_elem [
 <span id="L147" class="LineNr"> 147 </span>  <span class="Constant">local-scope</span>
 <span id="L148" class="LineNr"> 148 </span>  <span class="Constant">load-ingredients</span>
 <span id="L149" class="LineNr"> 149 </span>  <span class="Comment"># double buffer size</span>
@@ -226,7 +226,7 @@ if ('onhashchange' in window) {
 <span id="L164" class="LineNr"> 164 </span>  <span class="Delimiter">}</span>
 <span id="L165" class="LineNr"> 165 </span>]
 <span id="L166" class="LineNr"> 166 </span>
-<span id="L167" class="LineNr"> 167 </span><span class="muRecipe">def</span> <a href='061text.mu.html#L167'>buffer-full?</a> in:&amp;:buffer:_elem<span class="muRecipe"> -&gt; </span>result:bool [
+<span id="L167" class="LineNr"> 167 </span><span class="muRecipe">def</span> <a href='061text.mu.html#L167'>buffer-full?</a> in:&amp;:<a href='061text.mu.html#L126'>buffer</a>:_elem<span class="muRecipe"> -&gt; </span>result:bool [
 <span id="L168" class="LineNr"> 168 </span>  <span class="Constant">local-scope</span>
 <span id="L169" class="LineNr"> 169 </span>  <span class="Constant">load-ingredients</span>
 <span id="L170" class="LineNr"> 170 </span>  len:num <span class="Special">&lt;-</span> get *in, <span class="Constant">length:offset</span>
@@ -236,7 +236,7 @@ if ('onhashchange' in window) {
 <span id="L174" class="LineNr"> 174 </span>]
 <span id="L175" class="LineNr"> 175 </span>
 <span id="L176" class="LineNr"> 176 </span><span class="Comment"># most broadly applicable definition of append to a buffer: just call to-text</span>
-<span id="L177" class="LineNr"> 177 </span><span class="muRecipe">def</span> append buf:&amp;:buffer:char, x:_elem<span class="muRecipe"> -&gt; </span>buf:&amp;:buffer:char [
+<span id="L177" class="LineNr"> 177 </span><span class="muRecipe">def</span> append buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char, x:_elem<span class="muRecipe"> -&gt; </span>buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char [
 <span id="L178" class="LineNr"> 178 </span>  <span class="Constant">local-scope</span>
 <span id="L179" class="LineNr"> 179 </span>  <span class="Constant">load-ingredients</span>
 <span id="L180" class="LineNr"> 180 </span>  text:text <span class="Special">&lt;-</span> to-text x
@@ -252,7 +252,7 @@ if ('onhashchange' in window) {
 <span id="L190" class="LineNr"> 190 </span>  <span class="Delimiter">}</span>
 <span id="L191" class="LineNr"> 191 </span>]
 <span id="L192" class="LineNr"> 192 </span>
-<span id="L193" class="LineNr"> 193 </span><span class="muRecipe">def</span> append buf:&amp;:buffer:char, c:char<span class="muRecipe"> -&gt; </span>buf:&amp;:buffer:char [
+<span id="L193" class="LineNr"> 193 </span><span class="muRecipe">def</span> append buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char, c:char<span class="muRecipe"> -&gt; </span>buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char [
 <span id="L194" class="LineNr"> 194 </span>  <span class="Constant">local-scope</span>
 <span id="L195" class="LineNr"> 195 </span>  <span class="Constant">load-ingredients</span>
 <span id="L196" class="LineNr"> 196 </span>  len:num <span class="Special">&lt;-</span> get *buf, <span class="Constant">length:offset</span>
@@ -278,7 +278,7 @@ if ('onhashchange' in window) {
 <span id="L216" class="LineNr"> 216 </span>  *buf <span class="Special">&lt;-</span> put *buf, <span class="Constant">length:offset</span>, len
 <span id="L217" class="LineNr"> 217 </span>]
 <span id="L218" class="LineNr"> 218 </span>
-<span id="L219" class="LineNr"> 219 </span><span class="muRecipe">def</span> append buf:&amp;:buffer:char, t:text<span class="muRecipe"> -&gt; </span>buf:&amp;:buffer:char [
+<span id="L219" class="LineNr"> 219 </span><span class="muRecipe">def</span> append buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char, t:text<span class="muRecipe"> -&gt; </span>buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char [
 <span id="L220" class="LineNr"> 220 </span>  <span class="Constant">local-scope</span>
 <span id="L221" class="LineNr"> 221 </span>  <span class="Constant">load-ingredients</span>
 <span id="L222" class="LineNr"> 222 </span>  len:num <span class="Special">&lt;-</span> length *t
@@ -295,7 +295,7 @@ if ('onhashchange' in window) {
 <span id="L233" class="LineNr"> 233 </span>
 <span id="L234" class="LineNr"> 234 </span><span class="muScenario">scenario</span> append-to-empty-buffer [
 <span id="L235" class="LineNr"> 235 </span>  <span class="Constant">local-scope</span>
-<span id="L236" class="LineNr"> 236 </span>  x:&amp;:buffer:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a>
+<span id="L236" class="LineNr"> 236 </span>  x:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a>
 <span id="L237" class="LineNr"> 237 </span>  run [
 <span id="L238" class="LineNr"> 238 </span>  <span class="Conceal">¦</span> c:char <span class="Special">&lt;-</span> copy <span class="Constant">97/a</span>
 <span id="L239" class="LineNr"> 239 </span>  <span class="Conceal">¦</span> x <span class="Special">&lt;-</span> append x, c
@@ -313,7 +313,7 @@ if ('onhashchange' in window) {
 <span id="L251" class="LineNr"> 251 </span>
 <span id="L252" class="LineNr"> 252 </span><span class="muScenario">scenario</span> append-to-buffer [
 <span id="L253" class="LineNr"> 253 </span>  <span class="Constant">local-scope</span>
-<span id="L254" class="LineNr"> 254 </span>  x:&amp;:buffer:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a>
+<span id="L254" class="LineNr"> 254 </span>  x:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a>
 <span id="L255" class="LineNr"> 255 </span>  c:char <span class="Special">&lt;-</span> copy <span class="Constant">97/a</span>
 <span id="L256" class="LineNr"> 256 </span>  x <span class="Special">&lt;-</span> append x, c
 <span id="L257" class="LineNr"> 257 </span>  run [
@@ -335,7 +335,7 @@ if ('onhashchange' in window) {
 <span id="L273" class="LineNr"> 273 </span>
 <span id="L274" class="LineNr"> 274 </span><span class="muScenario">scenario</span> append-grows-buffer [
 <span id="L275" class="LineNr"> 275 </span>  <span class="Constant">local-scope</span>
-<span id="L276" class="LineNr"> 276 </span>  x:&amp;:buffer:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 3</span>
+<span id="L276" class="LineNr"> 276 </span>  x:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 3</span>
 <span id="L277" class="LineNr"> 277 </span>  s1:text <span class="Special">&lt;-</span> get *x, <span class="Constant">data:offset</span>
 <span id="L278" class="LineNr"> 278 </span>  x <span class="Special">&lt;-</span> append x, <span class="Constant">[abc]</span>  <span class="Comment"># buffer is now full</span>
 <span id="L279" class="LineNr"> 279 </span>  s2:text <span class="Special">&lt;-</span> get *x, <span class="Constant">data:offset</span>
@@ -372,7 +372,7 @@ if ('onhashchange' in window) {
 <span id="L310" class="LineNr"> 310 </span>
 <span id="L311" class="LineNr"> 311 </span><span class="muScenario">scenario</span> buffer-append-handles-backspace [
 <span id="L312" class="LineNr"> 312 </span>  <span class="Constant">local-scope</span>
-<span id="L313" class="LineNr"> 313 </span>  x:&amp;:buffer:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a>
+<span id="L313" class="LineNr"> 313 </span>  x:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a>
 <span id="L314" class="LineNr"> 314 </span>  x <span class="Special">&lt;-</span> append x, <span class="Constant">[ab]</span>
 <span id="L315" class="LineNr"> 315 </span>  run [
 <span id="L316" class="LineNr"> 316 </span>  <span class="Conceal">¦</span> c:char <span class="Special">&lt;-</span> copy <span class="Constant">8/backspace</span>
@@ -387,7 +387,7 @@ if ('onhashchange' in window) {
 <span id="L325" class="LineNr"> 325 </span>  ]
 <span id="L326" class="LineNr"> 326 </span>]
 <span id="L327" class="LineNr"> 327 </span>
-<span id="L328" class="LineNr"> 328 </span><span class="muRecipe">def</span> <a href='061text.mu.html#L328'>buffer-to-array</a> in:&amp;:buffer:_elem<span class="muRecipe"> -&gt; </span>result:&amp;:@:_elem [
+<span id="L328" class="LineNr"> 328 </span><span class="muRecipe">def</span> <a href='061text.mu.html#L328'>buffer-to-array</a> in:&amp;:<a href='061text.mu.html#L126'>buffer</a>:_elem<span class="muRecipe"> -&gt; </span>result:&amp;:@:_elem [
 <span id="L329" class="LineNr"> 329 </span>  <span class="Constant">local-scope</span>
 <span id="L330" class="LineNr"> 330 </span>  <span class="Constant">load-ingredients</span>
 <span id="L331" class="LineNr"> 331 </span>  <span class="Delimiter">{</span>
@@ -421,7 +421,7 @@ if ('onhashchange' in window) {
 <span id="L359" class="LineNr"> 359 </span><span class="muRecipe">def</span> append first:text<span class="muRecipe"> -&gt; </span>result:text [
 <span id="L360" class="LineNr"> 360 </span>  <span class="Constant">local-scope</span>
 <span id="L361" class="LineNr"> 361 </span>  <span class="Constant">load-ingredients</span>
-<span id="L362" class="LineNr"> 362 </span>  buf:&amp;:buffer:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
+<span id="L362" class="LineNr"> 362 </span>  buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
 <span id="L363" class="LineNr"> 363 </span>  <span class="Comment"># append first ingredient</span>
 <span id="L364" class="LineNr"> 364 </span>  <span class="Delimiter">{</span>
 <span id="L365" class="LineNr"> 365 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> first
diff --git a/html/064list.mu.html b/html/064list.mu.html
index e1f93300..3f604a5e 100644
--- a/html/064list.mu.html
+++ b/html/064list.mu.html
@@ -65,26 +65,26 @@ if ('onhashchange' in window) {
 <span id="L3" class="LineNr">  3 </span><span class="Comment"># The objects must be of the same type. If you want to store multiple types in</span>
 <span id="L4" class="LineNr">  4 </span><span class="Comment"># a single list, use an exclusive-container.</span>
 <span id="L5" class="LineNr">  5 </span>
-<span id="L6" class="LineNr">  6 </span><span class="muData">container</span> list:_elem [
+<span id="L6" class="LineNr">  6 </span><span class="muData">container</span> <a href='064list.mu.html#L6'>list</a>:_elem [
 <span id="L7" class="LineNr">  7 </span>  value:_elem
-<span id="L8" class="LineNr">  8 </span>  <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:list:_elem
+<span id="L8" class="LineNr">  8 </span>  <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem
 <span id="L9" class="LineNr">  9 </span>]
 <span id="L10" class="LineNr"> 10 </span>
-<span id="L11" class="LineNr"> 11 </span><span class="muRecipe">def</span> push x:_elem, l:&amp;:list:_elem<span class="muRecipe"> -&gt; </span>l:&amp;:list:_elem [
+<span id="L11" class="LineNr"> 11 </span><span class="muRecipe">def</span> push x:_elem, l:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem<span class="muRecipe"> -&gt; </span>l:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem [
 <span id="L12" class="LineNr"> 12 </span>  <span class="Constant">local-scope</span>
 <span id="L13" class="LineNr"> 13 </span>  <span class="Constant">load-ingredients</span>
-<span id="L14" class="LineNr"> 14 </span>  result:&amp;:list:_elem <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(list _elem): type<span class="Delimiter">}</span>
+<span id="L14" class="LineNr"> 14 </span>  result:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(list _elem): type<span class="Delimiter">}</span>
 <span id="L15" class="LineNr"> 15 </span>  *result <span class="Special">&lt;-</span> merge x, l
 <span id="L16" class="LineNr"> 16 </span>  <span class="muControl">return</span> result
 <span id="L17" class="LineNr"> 17 </span>]
 <span id="L18" class="LineNr"> 18 </span>
-<span id="L19" class="LineNr"> 19 </span><span class="muRecipe">def</span> first in:&amp;:list:_elem<span class="muRecipe"> -&gt; </span>result:_elem [
+<span id="L19" class="LineNr"> 19 </span><span class="muRecipe">def</span> first in:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem<span class="muRecipe"> -&gt; </span>result:_elem [
 <span id="L20" class="LineNr"> 20 </span>  <span class="Constant">local-scope</span>
 <span id="L21" class="LineNr"> 21 </span>  <span class="Constant">load-ingredients</span>
 <span id="L22" class="LineNr"> 22 </span>  result <span class="Special">&lt;-</span> get *in, <span class="Constant">value:offset</span>
 <span id="L23" class="LineNr"> 23 </span>]
 <span id="L24" class="LineNr"> 24 </span>
-<span id="L25" class="LineNr"> 25 </span><span class="muRecipe">def</span> <a href='064list.mu.html#L25'>rest</a> in:&amp;:list:_elem<span class="muRecipe"> -&gt; </span>result:&amp;:list:_elem/contained-in:in [
+<span id="L25" class="LineNr"> 25 </span><span class="muRecipe">def</span> <a href='064list.mu.html#L25'>rest</a> in:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem<span class="muRecipe"> -&gt; </span>result:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem/contained-in:in [
 <span id="L26" class="LineNr"> 26 </span>  <span class="Constant">local-scope</span>
 <span id="L27" class="LineNr"> 27 </span>  <span class="Constant">load-ingredients</span>
 <span id="L28" class="LineNr"> 28 </span>  result <span class="Special">&lt;-</span> get *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>
@@ -93,7 +93,7 @@ if ('onhashchange' in window) {
 <span id="L31" class="LineNr"> 31 </span><span class="muScenario">scenario</span> list-handling [
 <span id="L32" class="LineNr"> 32 </span>  run [
 <span id="L33" class="LineNr"> 33 </span>  <span class="Conceal">¦</span> <span class="Constant">local-scope</span>
-<span id="L34" class="LineNr"> 34 </span>  <span class="Conceal">¦</span> x:&amp;:list:num <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L34" class="LineNr"> 34 </span>  <span class="Conceal">¦</span> x:&amp;:<a href='064list.mu.html#L6'>list</a>:num <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
 <span id="L35" class="LineNr"> 35 </span>  <span class="Conceal">¦</span> x <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, x
 <span id="L36" class="LineNr"> 36 </span>  <span class="Conceal">¦</span> x <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, x
 <span id="L37" class="LineNr"> 37 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> first x
@@ -101,7 +101,7 @@ if ('onhashchange' in window) {
 <span id="L39" class="LineNr"> 39 </span>  <span class="Conceal">¦</span> 11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> first x
 <span id="L40" class="LineNr"> 40 </span>  <span class="Conceal">¦</span> x <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> x
 <span id="L41" class="LineNr"> 41 </span>  <span class="Conceal">¦</span> 12:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> first x
-<span id="L42" class="LineNr"> 42 </span>  <span class="Conceal">¦</span> 20:&amp;:list:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> x
+<span id="L42" class="LineNr"> 42 </span>  <span class="Conceal">¦</span> 20:&amp;:<a href='064list.mu.html#L6'>list</a>:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> x
 <span id="L43" class="LineNr"> 43 </span>  ]
 <span id="L44" class="LineNr"> 44 </span>  memory-should-contain [
 <span id="L45" class="LineNr"> 45 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 5</span>
@@ -111,7 +111,7 @@ if ('onhashchange' in window) {
 <span id="L49" class="LineNr"> 49 </span>  ]
 <span id="L50" class="LineNr"> 50 </span>]
 <span id="L51" class="LineNr"> 51 </span>
-<span id="L52" class="LineNr"> 52 </span><span class="muRecipe">def</span> length l:&amp;:list:_elem<span class="muRecipe"> -&gt; </span>result:num [
+<span id="L52" class="LineNr"> 52 </span><span class="muRecipe">def</span> length l:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem<span class="muRecipe"> -&gt; </span>result:num [
 <span id="L53" class="LineNr"> 53 </span>  <span class="Constant">local-scope</span>
 <span id="L54" class="LineNr"> 54 </span>  <span class="Constant">load-ingredients</span>
 <span id="L55" class="LineNr"> 55 </span>  result <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
@@ -124,26 +124,26 @@ if ('onhashchange' in window) {
 <span id="L62" class="LineNr"> 62 </span>]
 <span id="L63" class="LineNr"> 63 </span>
 <span id="L64" class="LineNr"> 64 </span><span class="Comment"># insert 'x' after 'in'</span>
-<span id="L65" class="LineNr"> 65 </span><span class="muRecipe">def</span> insert x:_elem, in:&amp;:list:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:list:_elem [
+<span id="L65" class="LineNr"> 65 </span><span class="muRecipe">def</span> insert x:_elem, in:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem [
 <span id="L66" class="LineNr"> 66 </span>  <span class="Constant">local-scope</span>
 <span id="L67" class="LineNr"> 67 </span>  <span class="Constant">load-ingredients</span>
-<span id="L68" class="LineNr"> 68 </span>  new-node:&amp;:list:_elem <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(list _elem): type<span class="Delimiter">}</span>
+<span id="L68" class="LineNr"> 68 </span>  new-node:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(list _elem): type<span class="Delimiter">}</span>
 <span id="L69" class="LineNr"> 69 </span>  *new-node <span class="Special">&lt;-</span> put *new-node, <span class="Constant">value:offset</span>, x
-<span id="L70" class="LineNr"> 70 </span>  next-node:&amp;:list:_elem <span class="Special">&lt;-</span> get *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>
+<span id="L70" class="LineNr"> 70 </span>  next-node:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem <span class="Special">&lt;-</span> get *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>
 <span id="L71" class="LineNr"> 71 </span>  *in <span class="Special">&lt;-</span> put *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, new-node
 <span id="L72" class="LineNr"> 72 </span>  *new-node <span class="Special">&lt;-</span> put *new-node, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, next-node
 <span id="L73" class="LineNr"> 73 </span>]
 <span id="L74" class="LineNr"> 74 </span>
 <span id="L75" class="LineNr"> 75 </span><span class="muScenario">scenario</span> inserting-into-list [
 <span id="L76" class="LineNr"> 76 </span>  <span class="Constant">local-scope</span>
-<span id="L77" class="LineNr"> 77 </span>  list:&amp;:list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L78" class="LineNr"> 78 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L79" class="LineNr"> 79 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
+<span id="L77" class="LineNr"> 77 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L78" class="LineNr"> 78 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L79" class="LineNr"> 79 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L80" class="LineNr"> 80 </span>  run [
-<span id="L81" class="LineNr"> 81 </span>  <span class="Conceal">¦</span> list2:&amp;:list:char <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list  <span class="Comment"># inside list</span>
+<span id="L81" class="LineNr"> 81 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> <a href='064list.mu.html#L6'>list</a>  <span class="Comment"># inside list</span>
 <span id="L82" class="LineNr"> 82 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> insert<span class="Constant"> 6</span>, list2
 <span id="L83" class="LineNr"> 83 </span>  <span class="Conceal">¦</span> <span class="Comment"># check structure</span>
-<span id="L84" class="LineNr"> 84 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy list
+<span id="L84" class="LineNr"> 84 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L85" class="LineNr"> 85 </span>  <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L86" class="LineNr"> 86 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
 <span id="L87" class="LineNr"> 87 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
@@ -162,15 +162,15 @@ if ('onhashchange' in window) {
 <span id="L100" class="LineNr">100 </span>
 <span id="L101" class="LineNr">101 </span><span class="muScenario">scenario</span> inserting-at-end-of-list [
 <span id="L102" class="LineNr">102 </span>  <span class="Constant">local-scope</span>
-<span id="L103" class="LineNr">103 </span>  list:&amp;:list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L104" class="LineNr">104 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L105" class="LineNr">105 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
+<span id="L103" class="LineNr">103 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L104" class="LineNr">104 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L105" class="LineNr">105 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L106" class="LineNr">106 </span>  run [
-<span id="L107" class="LineNr">107 </span>  <span class="Conceal">¦</span> list2:&amp;:list:char <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list  <span class="Comment"># inside list</span>
+<span id="L107" class="LineNr">107 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> <a href='064list.mu.html#L6'>list</a>  <span class="Comment"># inside list</span>
 <span id="L108" class="LineNr">108 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2  <span class="Comment"># now at end of list</span>
 <span id="L109" class="LineNr">109 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> insert<span class="Constant"> 6</span>, list2
 <span id="L110" class="LineNr">110 </span>  <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span>
-<span id="L111" class="LineNr">111 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy list
+<span id="L111" class="LineNr">111 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L112" class="LineNr">112 </span>  <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L113" class="LineNr">113 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
 <span id="L114" class="LineNr">114 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
@@ -189,13 +189,13 @@ if ('onhashchange' in window) {
 <span id="L127" class="LineNr">127 </span>
 <span id="L128" class="LineNr">128 </span><span class="muScenario">scenario</span> inserting-after-start-of-list [
 <span id="L129" class="LineNr">129 </span>  <span class="Constant">local-scope</span>
-<span id="L130" class="LineNr">130 </span>  list:&amp;:list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L131" class="LineNr">131 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L132" class="LineNr">132 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
+<span id="L130" class="LineNr">130 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L131" class="LineNr">131 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L132" class="LineNr">132 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L133" class="LineNr">133 </span>  run [
-<span id="L134" class="LineNr">134 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> insert<span class="Constant"> 6</span>, list
+<span id="L134" class="LineNr">134 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> insert<span class="Constant"> 6</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L135" class="LineNr">135 </span>  <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span>
-<span id="L136" class="LineNr">136 </span>  <span class="Conceal">¦</span> list2:&amp;:list:char <span class="Special">&lt;-</span> copy list
+<span id="L136" class="LineNr">136 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L137" class="LineNr">137 </span>  <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L138" class="LineNr">138 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
 <span id="L139" class="LineNr">139 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
@@ -216,20 +216,20 @@ if ('onhashchange' in window) {
 <span id="L154" class="LineNr">154 </span><span class="Comment">#</span>
 <span id="L155" class="LineNr">155 </span><span class="Comment"># Returns null if and only if list is empty. Beware: in that case any other</span>
 <span id="L156" class="LineNr">156 </span><span class="Comment"># pointers to the head are now invalid.</span>
-<span id="L157" class="LineNr">157 </span><span class="muRecipe">def</span> remove x:&amp;:list:_elem/contained-in:in, in:&amp;:list:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:list:_elem [
+<span id="L157" class="LineNr">157 </span><span class="muRecipe">def</span> remove x:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem/contained-in:in, in:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem [
 <span id="L158" class="LineNr">158 </span>  <span class="Constant">local-scope</span>
 <span id="L159" class="LineNr">159 </span>  <span class="Constant">load-ingredients</span>
 <span id="L160" class="LineNr">160 </span>  <span class="Comment"># if 'x' is null, return</span>
 <span id="L161" class="LineNr">161 </span>  <span class="muControl">return-unless</span> x
-<span id="L162" class="LineNr">162 </span>  next-node:&amp;:list:_elem <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> x
+<span id="L162" class="LineNr">162 </span>  next-node:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> x
 <span id="L163" class="LineNr">163 </span>  <span class="Comment"># clear next pointer of 'x'</span>
 <span id="L164" class="LineNr">164 </span>  *x <span class="Special">&lt;-</span> put *x, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>,<span class="Constant"> 0</span>
 <span id="L165" class="LineNr">165 </span>  <span class="Comment"># if 'x' is at the head of 'in', return the new head</span>
 <span id="L166" class="LineNr">166 </span>  at-head?:bool <span class="Special">&lt;-</span> equal x, in
 <span id="L167" class="LineNr">167 </span>  <span class="muControl">return-if</span> at-head?, next-node
 <span id="L168" class="LineNr">168 </span>  <span class="Comment"># compute prev-node</span>
-<span id="L169" class="LineNr">169 </span>  prev-node:&amp;:list:_elem <span class="Special">&lt;-</span> copy in
-<span id="L170" class="LineNr">170 </span>  curr:&amp;:list:_elem <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> prev-node
+<span id="L169" class="LineNr">169 </span>  prev-node:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem <span class="Special">&lt;-</span> copy in
+<span id="L170" class="LineNr">170 </span>  curr:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> prev-node
 <span id="L171" class="LineNr">171 </span>  <span class="Delimiter">{</span>
 <span id="L172" class="LineNr">172 </span>  <span class="Conceal">¦</span> <span class="muControl">return-unless</span> curr
 <span id="L173" class="LineNr">173 </span>  <span class="Conceal">¦</span> found?:bool <span class="Special">&lt;-</span> equal curr, x
@@ -243,19 +243,19 @@ if ('onhashchange' in window) {
 <span id="L181" class="LineNr">181 </span>
 <span id="L182" class="LineNr">182 </span><span class="muScenario">scenario</span> removing-from-list [
 <span id="L183" class="LineNr">183 </span>  <span class="Constant">local-scope</span>
-<span id="L184" class="LineNr">184 </span>  list:&amp;:list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L185" class="LineNr">185 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L186" class="LineNr">186 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
+<span id="L184" class="LineNr">184 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L185" class="LineNr">185 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L186" class="LineNr">186 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L187" class="LineNr">187 </span>  run [
-<span id="L188" class="LineNr">188 </span>  <span class="Conceal">¦</span> list2:&amp;:list:char <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list  <span class="Comment"># second element</span>
-<span id="L189" class="LineNr">189 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> remove list2, list
+<span id="L188" class="LineNr">188 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> <a href='064list.mu.html#L6'>list</a>  <span class="Comment"># second element</span>
+<span id="L189" class="LineNr">189 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> remove list2, <a href='064list.mu.html#L6'>list</a>
 <span id="L190" class="LineNr">190 </span>  <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal list2,<span class="Constant"> 0</span>
 <span id="L191" class="LineNr">191 </span>  <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span>
-<span id="L192" class="LineNr">192 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy list
+<span id="L192" class="LineNr">192 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L193" class="LineNr">193 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L194" class="LineNr">194 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
 <span id="L195" class="LineNr">195 </span>  <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L196" class="LineNr">196 </span>  <span class="Conceal">¦</span> 20:&amp;:list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
+<span id="L196" class="LineNr">196 </span>  <span class="Conceal">¦</span> 20:&amp;:<a href='064list.mu.html#L6'>list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
 <span id="L197" class="LineNr">197 </span>  ]
 <span id="L198" class="LineNr">198 </span>  memory-should-contain [
 <span id="L199" class="LineNr">199 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># remove returned non-null</span>
@@ -267,17 +267,17 @@ if ('onhashchange' in window) {
 <span id="L205" class="LineNr">205 </span>
 <span id="L206" class="LineNr">206 </span><span class="muScenario">scenario</span> removing-from-start-of-list [
 <span id="L207" class="LineNr">207 </span>  <span class="Constant">local-scope</span>
-<span id="L208" class="LineNr">208 </span>  list:&amp;:list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L209" class="LineNr">209 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L210" class="LineNr">210 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
+<span id="L208" class="LineNr">208 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L209" class="LineNr">209 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L210" class="LineNr">210 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L211" class="LineNr">211 </span>  run [
-<span id="L212" class="LineNr">212 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> remove list, list
+<span id="L212" class="LineNr">212 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> remove <a href='064list.mu.html#L6'>list</a>, <a href='064list.mu.html#L6'>list</a>
 <span id="L213" class="LineNr">213 </span>  <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span>
-<span id="L214" class="LineNr">214 </span>  <span class="Conceal">¦</span> list2:&amp;:list:char <span class="Special">&lt;-</span> copy list
+<span id="L214" class="LineNr">214 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L215" class="LineNr">215 </span>  <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L216" class="LineNr">216 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
 <span id="L217" class="LineNr">217 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L218" class="LineNr">218 </span>  <span class="Conceal">¦</span> 20:&amp;:list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
+<span id="L218" class="LineNr">218 </span>  <span class="Conceal">¦</span> 20:&amp;:<a href='064list.mu.html#L6'>list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
 <span id="L219" class="LineNr">219 </span>  ]
 <span id="L220" class="LineNr">220 </span>  memory-should-contain [
 <span id="L221" class="LineNr">221 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 4</span>  <span class="Comment"># scanning next, skipping deleted element</span>
@@ -288,21 +288,21 @@ if ('onhashchange' in window) {
 <span id="L226" class="LineNr">226 </span>
 <span id="L227" class="LineNr">227 </span><span class="muScenario">scenario</span> removing-from-end-of-list [
 <span id="L228" class="LineNr">228 </span>  <span class="Constant">local-scope</span>
-<span id="L229" class="LineNr">229 </span>  list:&amp;:list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L230" class="LineNr">230 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L231" class="LineNr">231 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
+<span id="L229" class="LineNr">229 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L230" class="LineNr">230 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L231" class="LineNr">231 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L232" class="LineNr">232 </span>  run [
 <span id="L233" class="LineNr">233 </span>  <span class="Conceal">¦</span> <span class="Comment"># delete last element</span>
-<span id="L234" class="LineNr">234 </span>  <span class="Conceal">¦</span> list2:&amp;:list:char <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list
+<span id="L234" class="LineNr">234 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L235" class="LineNr">235 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
-<span id="L236" class="LineNr">236 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> remove list2, list
+<span id="L236" class="LineNr">236 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> remove list2, <a href='064list.mu.html#L6'>list</a>
 <span id="L237" class="LineNr">237 </span>  <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal list2,<span class="Constant"> 0</span>
 <span id="L238" class="LineNr">238 </span>  <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span>
-<span id="L239" class="LineNr">239 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy list
+<span id="L239" class="LineNr">239 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L240" class="LineNr">240 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L241" class="LineNr">241 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
 <span id="L242" class="LineNr">242 </span>  <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L243" class="LineNr">243 </span>  <span class="Conceal">¦</span> 20:&amp;:list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
+<span id="L243" class="LineNr">243 </span>  <span class="Conceal">¦</span> 20:&amp;:<a href='064list.mu.html#L6'>list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list2
 <span id="L244" class="LineNr">244 </span>  ]
 <span id="L245" class="LineNr">245 </span>  memory-should-contain [
 <span id="L246" class="LineNr">246 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># remove returned non-null</span>
@@ -314,10 +314,10 @@ if ('onhashchange' in window) {
 <span id="L252" class="LineNr">252 </span>
 <span id="L253" class="LineNr">253 </span><span class="muScenario">scenario</span> removing-from-singleton-list [
 <span id="L254" class="LineNr">254 </span>  <span class="Constant">local-scope</span>
-<span id="L255" class="LineNr">255 </span>  list:&amp;:list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L255" class="LineNr">255 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='064list.mu.html#L6'>list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
 <span id="L256" class="LineNr">256 </span>  run [
-<span id="L257" class="LineNr">257 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> remove list, list
-<span id="L258" class="LineNr">258 </span>  <span class="Conceal">¦</span> 1:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy list
+<span id="L257" class="LineNr">257 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> remove <a href='064list.mu.html#L6'>list</a>, <a href='064list.mu.html#L6'>list</a>
+<span id="L258" class="LineNr">258 </span>  <span class="Conceal">¦</span> 1:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L259" class="LineNr">259 </span>  ]
 <span id="L260" class="LineNr">260 </span>  memory-should-contain [
 <span id="L261" class="LineNr">261 </span>  <span class="Conceal">¦</span><span class="Constant"> 1</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># back to an empty list</span>
@@ -326,50 +326,50 @@ if ('onhashchange' in window) {
 <span id="L264" class="LineNr">264 </span>
 <span id="L265" class="LineNr">265 </span><span class="Comment"># reverse the elements of a list</span>
 <span id="L266" class="LineNr">266 </span><span class="Comment"># (contributed by Caleb Couch)</span>
-<span id="L267" class="LineNr">267 </span><span class="muRecipe">def</span> reverse list:&amp;:list:_elem temp:&amp;:list:_elem/contained-in:result<span class="muRecipe"> -&gt; </span>result:&amp;:list:_elem [
+<span id="L267" class="LineNr">267 </span><span class="muRecipe">def</span> reverse <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem temp:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem/contained-in:result<span class="muRecipe"> -&gt; </span>result:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem [
 <span id="L268" class="LineNr">268 </span>  <span class="Constant">local-scope</span>
 <span id="L269" class="LineNr">269 </span>  <span class="Constant">load-ingredients</span>
-<span id="L270" class="LineNr">270 </span>  <span class="muControl">return-unless</span> list, temp
-<span id="L271" class="LineNr">271 </span>  object:_elem <span class="Special">&lt;-</span> first, list
-<span id="L272" class="LineNr">272 </span>  list <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> list
+<span id="L270" class="LineNr">270 </span>  <span class="muControl">return-unless</span> <a href='064list.mu.html#L6'>list</a>, temp
+<span id="L271" class="LineNr">271 </span>  object:_elem <span class="Special">&lt;-</span> first, <a href='064list.mu.html#L6'>list</a>
+<span id="L272" class="LineNr">272 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L273" class="LineNr">273 </span>  temp <span class="Special">&lt;-</span> push object, temp
-<span id="L274" class="LineNr">274 </span>  result <span class="Special">&lt;-</span> reverse list, temp
+<span id="L274" class="LineNr">274 </span>  result <span class="Special">&lt;-</span> reverse <a href='064list.mu.html#L6'>list</a>, temp
 <span id="L275" class="LineNr">275 </span>]
 <span id="L276" class="LineNr">276 </span>
 <span id="L277" class="LineNr">277 </span><span class="muScenario">scenario</span> reverse-list [
 <span id="L278" class="LineNr">278 </span>  <span class="Constant">local-scope</span>
-<span id="L279" class="LineNr">279 </span>  list:&amp;:list:number <span class="Special">&lt;-</span> push<span class="Constant"> 1</span>,<span class="Constant"> 0</span>
-<span id="L280" class="LineNr">280 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 2</span>, list
-<span id="L281" class="LineNr">281 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>, list
+<span id="L279" class="LineNr">279 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='064list.mu.html#L6'>list</a>:number <span class="Special">&lt;-</span> push<span class="Constant"> 1</span>,<span class="Constant"> 0</span>
+<span id="L280" class="LineNr">280 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 2</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L281" class="LineNr">281 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L282" class="LineNr">282 </span>  run [
-<span id="L283" class="LineNr">283 </span>  <span class="Conceal">¦</span> stash <span class="Constant">[list:]</span>, list
-<span id="L284" class="LineNr">284 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> reverse list
-<span id="L285" class="LineNr">285 </span>  <span class="Conceal">¦</span> stash <span class="Constant">[reversed:]</span>, list
+<span id="L283" class="LineNr">283 </span>  <span class="Conceal">¦</span> stash <span class="Constant">[list:]</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L284" class="LineNr">284 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> reverse <a href='064list.mu.html#L6'>list</a>
+<span id="L285" class="LineNr">285 </span>  <span class="Conceal">¦</span> stash <span class="Constant">[reversed:]</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L286" class="LineNr">286 </span>  ]
 <span id="L287" class="LineNr">287 </span>  trace-should-contain [
-<span id="L288" class="LineNr">288 </span>  <span class="Conceal">¦</span> app: list:<span class="Constant"> 3</span><span class="muRecipe"> -&gt; </span>2<span class="muRecipe"> -&gt; </span>1
+<span id="L288" class="LineNr">288 </span>  <span class="Conceal">¦</span> app: <a href='064list.mu.html#L6'>list</a>:<span class="Constant"> 3</span><span class="muRecipe"> -&gt; </span>2<span class="muRecipe"> -&gt; </span>1
 <span id="L289" class="LineNr">289 </span>  <span class="Conceal">¦</span> app: reversed:<span class="Constant"> 1</span><span class="muRecipe"> -&gt; </span>2<span class="muRecipe"> -&gt; </span>3
 <span id="L290" class="LineNr">290 </span>  ]
 <span id="L291" class="LineNr">291 </span>]
 <span id="L292" class="LineNr">292 </span>
-<span id="L293" class="LineNr">293 </span><span class="muRecipe">def</span> to-text in:&amp;:list:_elem<span class="muRecipe"> -&gt; </span>result:text [
+<span id="L293" class="LineNr">293 </span><span class="muRecipe">def</span> to-text in:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem<span class="muRecipe"> -&gt; </span>result:text [
 <span id="L294" class="LineNr">294 </span>  <span class="Constant">local-scope</span>
 <span id="L295" class="LineNr">295 </span>  <span class="Constant">load-ingredients</span>
-<span id="L296" class="LineNr">296 </span>  buf:&amp;:buffer:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 80</span>
+<span id="L296" class="LineNr">296 </span>  buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 80</span>
 <span id="L297" class="LineNr">297 </span>  buf <span class="Special">&lt;-</span> <a href='064list.mu.html#L310'>to-buffer</a> in, buf
 <span id="L298" class="LineNr">298 </span>  result <span class="Special">&lt;-</span> <a href='061text.mu.html#L328'>buffer-to-array</a> buf
 <span id="L299" class="LineNr">299 </span>]
 <span id="L300" class="LineNr">300 </span>
 <span id="L301" class="LineNr">301 </span><span class="Comment"># variant of 'to-text' which stops printing after a few elements (and so is robust to cycles)</span>
-<span id="L302" class="LineNr">302 </span><span class="muRecipe">def</span> to-text-line in:&amp;:list:_elem<span class="muRecipe"> -&gt; </span>result:text [
+<span id="L302" class="LineNr">302 </span><span class="muRecipe">def</span> to-text-line in:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem<span class="muRecipe"> -&gt; </span>result:text [
 <span id="L303" class="LineNr">303 </span>  <span class="Constant">local-scope</span>
 <span id="L304" class="LineNr">304 </span>  <span class="Constant">load-ingredients</span>
-<span id="L305" class="LineNr">305 </span>  buf:&amp;:buffer:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 80</span>
+<span id="L305" class="LineNr">305 </span>  buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 80</span>
 <span id="L306" class="LineNr">306 </span>  buf <span class="Special">&lt;-</span> <a href='064list.mu.html#L310'>to-buffer</a> in, buf,<span class="Constant"> 6</span>  <span class="Comment"># max elements to display</span>
 <span id="L307" class="LineNr">307 </span>  result <span class="Special">&lt;-</span> <a href='061text.mu.html#L328'>buffer-to-array</a> buf
 <span id="L308" class="LineNr">308 </span>]
 <span id="L309" class="LineNr">309 </span>
-<span id="L310" class="LineNr">310 </span><span class="muRecipe">def</span> <a href='064list.mu.html#L310'>to-buffer</a> in:&amp;:list:_elem, buf:&amp;:buffer:char<span class="muRecipe"> -&gt; </span>buf:&amp;:buffer:char [
+<span id="L310" class="LineNr">310 </span><span class="muRecipe">def</span> <a href='064list.mu.html#L310'>to-buffer</a> in:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem, buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char<span class="muRecipe"> -&gt; </span>buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char [
 <span id="L311" class="LineNr">311 </span>  <span class="Constant">local-scope</span>
 <span id="L312" class="LineNr">312 </span>  <span class="Constant">load-ingredients</span>
 <span id="L313" class="LineNr">313 </span>  <span class="Delimiter">{</span>
@@ -381,7 +381,7 @@ if ('onhashchange' in window) {
 <span id="L319" class="LineNr">319 </span>  val:_elem <span class="Special">&lt;-</span> get *in, <span class="Constant">value:offset</span>
 <span id="L320" class="LineNr">320 </span>  buf <span class="Special">&lt;-</span> append buf, val
 <span id="L321" class="LineNr">321 </span>  <span class="Comment"># now prepare next</span>
-<span id="L322" class="LineNr">322 </span>  <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:list:_elem <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> in
+<span id="L322" class="LineNr">322 </span>  <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:<a href='064list.mu.html#L6'>list</a>:_elem <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> in
 <span id="L323" class="LineNr">323 </span>  nextn:num <span class="Special">&lt;-</span> copy <a href='065duplex_list.mu.html#L29'>next</a>
 <span id="L324" class="LineNr">324 </span>  <span class="muControl">return-unless</span> <a href='065duplex_list.mu.html#L29'>next</a>
 <span id="L325" class="LineNr">325 </span>  buf <span class="Special">&lt;-</span> append buf, <span class="Constant">[ -&gt; ]</span>
@@ -406,7 +406,7 @@ if ('onhashchange' in window) {
 <span id="L344" class="LineNr">344 </span>
 <span id="L345" class="LineNr">345 </span><span class="muScenario">scenario</span> stash-empty-list [
 <span id="L346" class="LineNr">346 </span>  <span class="Constant">local-scope</span>
-<span id="L347" class="LineNr">347 </span>  x:&amp;:list:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
+<span id="L347" class="LineNr">347 </span>  x:&amp;:<a href='064list.mu.html#L6'>list</a>:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
 <span id="L348" class="LineNr">348 </span>  run [
 <span id="L349" class="LineNr">349 </span>  <span class="Conceal">¦</span> stash x
 <span id="L350" class="LineNr">350 </span>  ]
diff --git a/html/065duplex_list.mu.html b/html/065duplex_list.mu.html
index fedcd670..55bb4707 100644
--- a/html/065duplex_list.mu.html
+++ b/html/065duplex_list.mu.html
@@ -62,17 +62,17 @@ if ('onhashchange' in window) {
 <pre id='vimCodeElement'>
 <span id="L1" class="LineNr">  1 </span><span class="Comment"># A doubly linked list permits bidirectional traversal.</span>
 <span id="L2" class="LineNr">  2 </span>
-<span id="L3" class="LineNr">  3 </span><span class="muData">container</span> duplex-list:_elem [
+<span id="L3" class="LineNr">  3 </span><span class="muData">container</span> <a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem [
 <span id="L4" class="LineNr">  4 </span>  value:_elem
-<span id="L5" class="LineNr">  5 </span>  <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:duplex-list:_elem
-<span id="L6" class="LineNr">  6 </span>  <a href='065duplex_list.mu.html#L36'>prev</a>:&amp;:duplex-list:_elem
+<span id="L5" class="LineNr">  5 </span>  <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem
+<span id="L6" class="LineNr">  6 </span>  <a href='065duplex_list.mu.html#L36'>prev</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem
 <span id="L7" class="LineNr">  7 </span>]
 <span id="L8" class="LineNr">  8 </span>
 <span id="L9" class="LineNr">  9 </span><span class="Comment"># should I say in/contained-in:result, allow ingredients to refer to products?</span>
-<span id="L10" class="LineNr"> 10 </span><span class="muRecipe">def</span> push x:_elem, in:&amp;:duplex-list:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:duplex-list:_elem [
+<span id="L10" class="LineNr"> 10 </span><span class="muRecipe">def</span> push x:_elem, in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem [
 <span id="L11" class="LineNr"> 11 </span>  <span class="Constant">local-scope</span>
 <span id="L12" class="LineNr"> 12 </span>  <span class="Constant">load-ingredients</span>
-<span id="L13" class="LineNr"> 13 </span>  result:&amp;:duplex-list:_elem <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(duplex-list _elem): type<span class="Delimiter">}</span>
+<span id="L13" class="LineNr"> 13 </span>  result:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(duplex-list _elem): type<span class="Delimiter">}</span>
 <span id="L14" class="LineNr"> 14 </span>  *result <span class="Special">&lt;-</span> merge x, in,<span class="Constant"> 0</span>
 <span id="L15" class="LineNr"> 15 </span>  <span class="Delimiter">{</span>
 <span id="L16" class="LineNr"> 16 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> in
@@ -81,21 +81,21 @@ if ('onhashchange' in window) {
 <span id="L19" class="LineNr"> 19 </span>  <span class="muControl">return</span> result  <span class="Comment"># needed explicitly because we need to replace 'in' with 'result'</span>
 <span id="L20" class="LineNr"> 20 </span>]
 <span id="L21" class="LineNr"> 21 </span>
-<span id="L22" class="LineNr"> 22 </span><span class="muRecipe">def</span> first in:&amp;:duplex-list:_elem<span class="muRecipe"> -&gt; </span>result:_elem [
+<span id="L22" class="LineNr"> 22 </span><span class="muRecipe">def</span> first in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem<span class="muRecipe"> -&gt; </span>result:_elem [
 <span id="L23" class="LineNr"> 23 </span>  <span class="Constant">local-scope</span>
 <span id="L24" class="LineNr"> 24 </span>  <span class="Constant">load-ingredients</span>
 <span id="L25" class="LineNr"> 25 </span>  <span class="muControl">return-unless</span> in,<span class="Constant"> 0</span>
 <span id="L26" class="LineNr"> 26 </span>  result <span class="Special">&lt;-</span> get *in, <span class="Constant">value:offset</span>
 <span id="L27" class="LineNr"> 27 </span>]
 <span id="L28" class="LineNr"> 28 </span>
-<span id="L29" class="LineNr"> 29 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L29'>next</a> in:&amp;:duplex-list:_elem<span class="muRecipe"> -&gt; </span>result:&amp;:duplex-list:_elem/contained-in:in [
+<span id="L29" class="LineNr"> 29 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L29'>next</a> in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem<span class="muRecipe"> -&gt; </span>result:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem/contained-in:in [
 <span id="L30" class="LineNr"> 30 </span>  <span class="Constant">local-scope</span>
 <span id="L31" class="LineNr"> 31 </span>  <span class="Constant">load-ingredients</span>
 <span id="L32" class="LineNr"> 32 </span>  <span class="muControl">return-unless</span> in,<span class="Constant"> 0</span>
 <span id="L33" class="LineNr"> 33 </span>  result <span class="Special">&lt;-</span> get *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>
 <span id="L34" class="LineNr"> 34 </span>]
 <span id="L35" class="LineNr"> 35 </span>
-<span id="L36" class="LineNr"> 36 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L36'>prev</a> in:&amp;:duplex-list:_elem<span class="muRecipe"> -&gt; </span>result:&amp;:duplex-list:_elem/contained-in:in [
+<span id="L36" class="LineNr"> 36 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L36'>prev</a> in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem<span class="muRecipe"> -&gt; </span>result:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem/contained-in:in [
 <span id="L37" class="LineNr"> 37 </span>  <span class="Constant">local-scope</span>
 <span id="L38" class="LineNr"> 38 </span>  <span class="Constant">load-ingredients</span>
 <span id="L39" class="LineNr"> 39 </span>  <span class="muControl">return-unless</span> in,<span class="Constant"> 0</span>
@@ -109,24 +109,24 @@ if ('onhashchange' in window) {
 <span id="L47" class="LineNr"> 47 </span>  <span class="Conceal">¦</span> <span class="Comment"># reserve locations 0-9 to check for missing null check</span>
 <span id="L48" class="LineNr"> 48 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy<span class="Constant"> 34</span>
 <span id="L49" class="LineNr"> 49 </span>  <span class="Conceal">¦</span> 11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy<span class="Constant"> 35</span>
-<span id="L50" class="LineNr"> 50 </span>  <span class="Conceal">¦</span> list:&amp;:duplex-list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L51" class="LineNr"> 51 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L52" class="LineNr"> 52 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
-<span id="L53" class="LineNr"> 53 </span>  <span class="Conceal">¦</span> list2:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy list
+<span id="L50" class="LineNr"> 50 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L51" class="LineNr"> 51 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L52" class="LineNr"> 52 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L53" class="LineNr"> 53 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L54" class="LineNr"> 54 </span>  <span class="Conceal">¦</span> 20:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L55" class="LineNr"> 55 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L56" class="LineNr"> 56 </span>  <span class="Conceal">¦</span> 21:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L57" class="LineNr"> 57 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L58" class="LineNr"> 58 </span>  <span class="Conceal">¦</span> 22:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L59" class="LineNr"> 59 </span>  <span class="Conceal">¦</span> 30:&amp;:duplex-list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
-<span id="L60" class="LineNr"> 60 </span>  <span class="Conceal">¦</span> 31:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first 30:&amp;:duplex-list:char/<span class="Special">raw</span>
-<span id="L61" class="LineNr"> 61 </span>  <span class="Conceal">¦</span> 32:&amp;:duplex-list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> 30:&amp;:duplex-list:char/<span class="Special">raw</span>
-<span id="L62" class="LineNr"> 62 </span>  <span class="Conceal">¦</span> 33:&amp;:duplex-list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L36'>prev</a> 30:&amp;:duplex-list:char/<span class="Special">raw</span>
+<span id="L59" class="LineNr"> 59 </span>  <span class="Conceal">¦</span> 30:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
+<span id="L60" class="LineNr"> 60 </span>  <span class="Conceal">¦</span> 31:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first 30:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span>
+<span id="L61" class="LineNr"> 61 </span>  <span class="Conceal">¦</span> 32:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> 30:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span>
+<span id="L62" class="LineNr"> 62 </span>  <span class="Conceal">¦</span> 33:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L36'>prev</a> 30:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span>
 <span id="L63" class="LineNr"> 63 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2
 <span id="L64" class="LineNr"> 64 </span>  <span class="Conceal">¦</span> 40:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L65" class="LineNr"> 65 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2
 <span id="L66" class="LineNr"> 66 </span>  <span class="Conceal">¦</span> 41:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L67" class="LineNr"> 67 </span>  <span class="Conceal">¦</span> 50:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal list, list2
+<span id="L67" class="LineNr"> 67 </span>  <span class="Conceal">¦</span> 50:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal <a href='064list.mu.html#L6'>list</a>, list2
 <span id="L68" class="LineNr"> 68 </span>  ]
 <span id="L69" class="LineNr"> 69 </span>  memory-should-contain [
 <span id="L70" class="LineNr"> 70 </span>  <span class="Conceal">¦</span><span class="Constant"> 0</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># no modifications to null pointers</span>
@@ -145,7 +145,7 @@ if ('onhashchange' in window) {
 <span id="L83" class="LineNr"> 83 </span>  ]
 <span id="L84" class="LineNr"> 84 </span>]
 <span id="L85" class="LineNr"> 85 </span>
-<span id="L86" class="LineNr"> 86 </span><span class="muRecipe">def</span> length l:&amp;:duplex-list:_elem<span class="muRecipe"> -&gt; </span>result:num [
+<span id="L86" class="LineNr"> 86 </span><span class="muRecipe">def</span> length l:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem<span class="muRecipe"> -&gt; </span>result:num [
 <span id="L87" class="LineNr"> 87 </span>  <span class="Constant">local-scope</span>
 <span id="L88" class="LineNr"> 88 </span>  <span class="Constant">load-ingredients</span>
 <span id="L89" class="LineNr"> 89 </span>  result <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
@@ -158,13 +158,13 @@ if ('onhashchange' in window) {
 <span id="L96" class="LineNr"> 96 </span>]
 <span id="L97" class="LineNr"> 97 </span>
 <span id="L98" class="LineNr"> 98 </span><span class="Comment"># insert 'x' after 'in'</span>
-<span id="L99" class="LineNr"> 99 </span><span class="muRecipe">def</span> insert x:_elem, in:&amp;:duplex-list:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:duplex-list:_elem [
+<span id="L99" class="LineNr"> 99 </span><span class="muRecipe">def</span> insert x:_elem, in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem [
 <span id="L100" class="LineNr">100 </span>  <span class="Constant">local-scope</span>
 <span id="L101" class="LineNr">101 </span>  <span class="Constant">load-ingredients</span>
-<span id="L102" class="LineNr">102 </span>  new-node:&amp;:duplex-list:_elem <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(duplex-list _elem): type<span class="Delimiter">}</span>
+<span id="L102" class="LineNr">102 </span>  new-node:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(duplex-list _elem): type<span class="Delimiter">}</span>
 <span id="L103" class="LineNr">103 </span>  *new-node <span class="Special">&lt;-</span> put *new-node, <span class="Constant">value:offset</span>, x
 <span id="L104" class="LineNr">104 </span>  <span class="Comment"># save old next before changing it</span>
-<span id="L105" class="LineNr">105 </span>  next-node:&amp;:duplex-list:_elem <span class="Special">&lt;-</span> get *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>
+<span id="L105" class="LineNr">105 </span>  next-node:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem <span class="Special">&lt;-</span> get *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>
 <span id="L106" class="LineNr">106 </span>  *in <span class="Special">&lt;-</span> put *in, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, new-node
 <span id="L107" class="LineNr">107 </span>  *new-node <span class="Special">&lt;-</span> put *new-node, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, in
 <span id="L108" class="LineNr">108 </span>  *new-node <span class="Special">&lt;-</span> put *new-node, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, next-node
@@ -174,14 +174,14 @@ if ('onhashchange' in window) {
 <span id="L112" class="LineNr">112 </span>
 <span id="L113" class="LineNr">113 </span><span class="muScenario">scenario</span> inserting-into-duplex-list [
 <span id="L114" class="LineNr">114 </span>  <span class="Constant">local-scope</span>
-<span id="L115" class="LineNr">115 </span>  list:&amp;:duplex-list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L116" class="LineNr">116 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L117" class="LineNr">117 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
+<span id="L115" class="LineNr">115 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L116" class="LineNr">116 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L117" class="LineNr">117 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L118" class="LineNr">118 </span>  run [
-<span id="L119" class="LineNr">119 </span>  <span class="Conceal">¦</span> list2:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list  <span class="Comment"># inside list</span>
+<span id="L119" class="LineNr">119 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>  <span class="Comment"># inside list</span>
 <span id="L120" class="LineNr">120 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> insert<span class="Constant"> 6</span>, list2
 <span id="L121" class="LineNr">121 </span>  <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span>
-<span id="L122" class="LineNr">122 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy list
+<span id="L122" class="LineNr">122 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L123" class="LineNr">123 </span>  <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L124" class="LineNr">124 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L125" class="LineNr">125 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
@@ -195,7 +195,7 @@ if ('onhashchange' in window) {
 <span id="L133" class="LineNr">133 </span>  <span class="Conceal">¦</span> 21:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L134" class="LineNr">134 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2
 <span id="L135" class="LineNr">135 </span>  <span class="Conceal">¦</span> 22:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L136" class="LineNr">136 </span>  <span class="Conceal">¦</span> 30:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal list, list2
+<span id="L136" class="LineNr">136 </span>  <span class="Conceal">¦</span> 30:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal <a href='064list.mu.html#L6'>list</a>, list2
 <span id="L137" class="LineNr">137 </span>  ]
 <span id="L138" class="LineNr">138 </span>  memory-should-contain [
 <span id="L139" class="LineNr">139 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 5</span>  <span class="Comment"># scanning next</span>
@@ -211,15 +211,15 @@ if ('onhashchange' in window) {
 <span id="L149" class="LineNr">149 </span>
 <span id="L150" class="LineNr">150 </span><span class="muScenario">scenario</span> inserting-at-end-of-duplex-list [
 <span id="L151" class="LineNr">151 </span>  <span class="Constant">local-scope</span>
-<span id="L152" class="LineNr">152 </span>  list:&amp;:duplex-list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L153" class="LineNr">153 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L154" class="LineNr">154 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
+<span id="L152" class="LineNr">152 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L153" class="LineNr">153 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L154" class="LineNr">154 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L155" class="LineNr">155 </span>  run [
-<span id="L156" class="LineNr">156 </span>  <span class="Conceal">¦</span> list2:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list  <span class="Comment"># inside list</span>
+<span id="L156" class="LineNr">156 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>  <span class="Comment"># inside list</span>
 <span id="L157" class="LineNr">157 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2  <span class="Comment"># now at end of list</span>
 <span id="L158" class="LineNr">158 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> insert<span class="Constant"> 6</span>, list2
 <span id="L159" class="LineNr">159 </span>  <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span>
-<span id="L160" class="LineNr">160 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy list
+<span id="L160" class="LineNr">160 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L161" class="LineNr">161 </span>  <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L162" class="LineNr">162 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L163" class="LineNr">163 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
@@ -233,7 +233,7 @@ if ('onhashchange' in window) {
 <span id="L171" class="LineNr">171 </span>  <span class="Conceal">¦</span> 21:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L172" class="LineNr">172 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2
 <span id="L173" class="LineNr">173 </span>  <span class="Conceal">¦</span> 22:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L174" class="LineNr">174 </span>  <span class="Conceal">¦</span> 30:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal list, list2
+<span id="L174" class="LineNr">174 </span>  <span class="Conceal">¦</span> 30:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal <a href='064list.mu.html#L6'>list</a>, list2
 <span id="L175" class="LineNr">175 </span>  ]
 <span id="L176" class="LineNr">176 </span>  memory-should-contain [
 <span id="L177" class="LineNr">177 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 5</span>  <span class="Comment"># scanning next</span>
@@ -249,13 +249,13 @@ if ('onhashchange' in window) {
 <span id="L187" class="LineNr">187 </span>
 <span id="L188" class="LineNr">188 </span><span class="muScenario">scenario</span> inserting-after-start-of-duplex-list [
 <span id="L189" class="LineNr">189 </span>  <span class="Constant">local-scope</span>
-<span id="L190" class="LineNr">190 </span>  list:&amp;:duplex-list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L191" class="LineNr">191 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L192" class="LineNr">192 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
+<span id="L190" class="LineNr">190 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L191" class="LineNr">191 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L192" class="LineNr">192 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L193" class="LineNr">193 </span>  run [
-<span id="L194" class="LineNr">194 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> insert<span class="Constant"> 6</span>, list
+<span id="L194" class="LineNr">194 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> insert<span class="Constant"> 6</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L195" class="LineNr">195 </span>  <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span>
-<span id="L196" class="LineNr">196 </span>  <span class="Conceal">¦</span> list2:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy list
+<span id="L196" class="LineNr">196 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L197" class="LineNr">197 </span>  <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L198" class="LineNr">198 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L199" class="LineNr">199 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
@@ -269,7 +269,7 @@ if ('onhashchange' in window) {
 <span id="L207" class="LineNr">207 </span>  <span class="Conceal">¦</span> 21:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L208" class="LineNr">208 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2
 <span id="L209" class="LineNr">209 </span>  <span class="Conceal">¦</span> 22:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L210" class="LineNr">210 </span>  <span class="Conceal">¦</span> 30:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal list, list2
+<span id="L210" class="LineNr">210 </span>  <span class="Conceal">¦</span> 30:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal <a href='064list.mu.html#L6'>list</a>, list2
 <span id="L211" class="LineNr">211 </span>  ]
 <span id="L212" class="LineNr">212 </span>  memory-should-contain [
 <span id="L213" class="LineNr">213 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 5</span>  <span class="Comment"># scanning next</span>
@@ -287,13 +287,13 @@ if ('onhashchange' in window) {
 <span id="L225" class="LineNr">225 </span><span class="Comment">#</span>
 <span id="L226" class="LineNr">226 </span><span class="Comment"># Returns null if and only if list is empty. Beware: in that case any other</span>
 <span id="L227" class="LineNr">227 </span><span class="Comment"># pointers to the head are now invalid.</span>
-<span id="L228" class="LineNr">228 </span><span class="muRecipe">def</span> remove x:&amp;:duplex-list:_elem/contained-in:in, in:&amp;:duplex-list:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:duplex-list:_elem [
+<span id="L228" class="LineNr">228 </span><span class="muRecipe">def</span> remove x:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem/contained-in:in, in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem [
 <span id="L229" class="LineNr">229 </span>  <span class="Constant">local-scope</span>
 <span id="L230" class="LineNr">230 </span>  <span class="Constant">load-ingredients</span>
 <span id="L231" class="LineNr">231 </span>  <span class="Comment"># if 'x' is null, return</span>
 <span id="L232" class="LineNr">232 </span>  <span class="muControl">return-unless</span> x
-<span id="L233" class="LineNr">233 </span>  next-node:&amp;:duplex-list:_elem <span class="Special">&lt;-</span> get *x, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>
-<span id="L234" class="LineNr">234 </span>  prev-node:&amp;:duplex-list:_elem <span class="Special">&lt;-</span> get *x, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>
+<span id="L233" class="LineNr">233 </span>  next-node:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem <span class="Special">&lt;-</span> get *x, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>
+<span id="L234" class="LineNr">234 </span>  prev-node:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem <span class="Special">&lt;-</span> get *x, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>
 <span id="L235" class="LineNr">235 </span>  <span class="Comment"># null x's pointers</span>
 <span id="L236" class="LineNr">236 </span>  *x <span class="Special">&lt;-</span> put *x, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>,<span class="Constant"> 0</span>
 <span id="L237" class="LineNr">237 </span>  *x <span class="Special">&lt;-</span> put *x, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>,<span class="Constant"> 0</span>
@@ -315,22 +315,22 @@ if ('onhashchange' in window) {
 <span id="L253" class="LineNr">253 </span>
 <span id="L254" class="LineNr">254 </span><span class="muScenario">scenario</span> removing-from-duplex-list [
 <span id="L255" class="LineNr">255 </span>  <span class="Constant">local-scope</span>
-<span id="L256" class="LineNr">256 </span>  list:&amp;:duplex-list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L257" class="LineNr">257 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L258" class="LineNr">258 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
+<span id="L256" class="LineNr">256 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L257" class="LineNr">257 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L258" class="LineNr">258 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L259" class="LineNr">259 </span>  run [
-<span id="L260" class="LineNr">260 </span>  <span class="Conceal">¦</span> list2:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list  <span class="Comment"># second element</span>
-<span id="L261" class="LineNr">261 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> remove list2, list
+<span id="L260" class="LineNr">260 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>  <span class="Comment"># second element</span>
+<span id="L261" class="LineNr">261 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> remove list2, <a href='064list.mu.html#L6'>list</a>
 <span id="L262" class="LineNr">262 </span>  <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal list2,<span class="Constant"> 0</span>
 <span id="L263" class="LineNr">263 </span>  <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span>
-<span id="L264" class="LineNr">264 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy list
+<span id="L264" class="LineNr">264 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L265" class="LineNr">265 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L266" class="LineNr">266 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L267" class="LineNr">267 </span>  <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L268" class="LineNr">268 </span>  <span class="Conceal">¦</span> 20:&amp;:duplex-list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
+<span id="L268" class="LineNr">268 </span>  <span class="Conceal">¦</span> 20:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L269" class="LineNr">269 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2
 <span id="L270" class="LineNr">270 </span>  <span class="Conceal">¦</span> 30:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L271" class="LineNr">271 </span>  <span class="Conceal">¦</span> 40:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal list, list2
+<span id="L271" class="LineNr">271 </span>  <span class="Conceal">¦</span> 40:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal <a href='064list.mu.html#L6'>list</a>, list2
 <span id="L272" class="LineNr">272 </span>  ]
 <span id="L273" class="LineNr">273 </span>  memory-should-contain [
 <span id="L274" class="LineNr">274 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># remove returned non-null</span>
@@ -344,20 +344,20 @@ if ('onhashchange' in window) {
 <span id="L282" class="LineNr">282 </span>
 <span id="L283" class="LineNr">283 </span><span class="muScenario">scenario</span> removing-from-start-of-duplex-list [
 <span id="L284" class="LineNr">284 </span>  <span class="Constant">local-scope</span>
-<span id="L285" class="LineNr">285 </span>  list:&amp;:duplex-list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L286" class="LineNr">286 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L287" class="LineNr">287 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
+<span id="L285" class="LineNr">285 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L286" class="LineNr">286 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L287" class="LineNr">287 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L288" class="LineNr">288 </span>  run [
-<span id="L289" class="LineNr">289 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> remove list, list
+<span id="L289" class="LineNr">289 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> remove <a href='064list.mu.html#L6'>list</a>, <a href='064list.mu.html#L6'>list</a>
 <span id="L290" class="LineNr">290 </span>  <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span>
-<span id="L291" class="LineNr">291 </span>  <span class="Conceal">¦</span> list2:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy list
+<span id="L291" class="LineNr">291 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L292" class="LineNr">292 </span>  <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L293" class="LineNr">293 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L294" class="LineNr">294 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L295" class="LineNr">295 </span>  <span class="Conceal">¦</span> 20:&amp;:duplex-list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
+<span id="L295" class="LineNr">295 </span>  <span class="Conceal">¦</span> 20:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L296" class="LineNr">296 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2
 <span id="L297" class="LineNr">297 </span>  <span class="Conceal">¦</span> 30:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L298" class="LineNr">298 </span>  <span class="Conceal">¦</span> 40:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal list, list2
+<span id="L298" class="LineNr">298 </span>  <span class="Conceal">¦</span> 40:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal <a href='064list.mu.html#L6'>list</a>, list2
 <span id="L299" class="LineNr">299 </span>  ]
 <span id="L300" class="LineNr">300 </span>  memory-should-contain [
 <span id="L301" class="LineNr">301 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 4</span>  <span class="Comment"># scanning next, skipping deleted element</span>
@@ -370,24 +370,24 @@ if ('onhashchange' in window) {
 <span id="L308" class="LineNr">308 </span>
 <span id="L309" class="LineNr">309 </span><span class="muScenario">scenario</span> removing-from-end-of-duplex-list [
 <span id="L310" class="LineNr">310 </span>  <span class="Constant">local-scope</span>
-<span id="L311" class="LineNr">311 </span>  list:&amp;:duplex-list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
-<span id="L312" class="LineNr">312 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, list
-<span id="L313" class="LineNr">313 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, list
+<span id="L311" class="LineNr">311 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L312" class="LineNr">312 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 4</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L313" class="LineNr">313 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 5</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L314" class="LineNr">314 </span>  run [
 <span id="L315" class="LineNr">315 </span>  <span class="Conceal">¦</span> <span class="Comment"># delete last element</span>
-<span id="L316" class="LineNr">316 </span>  <span class="Conceal">¦</span> list2:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L316" class="LineNr">316 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L317" class="LineNr">317 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
-<span id="L318" class="LineNr">318 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> remove list2, list
+<span id="L318" class="LineNr">318 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> remove list2, <a href='064list.mu.html#L6'>list</a>
 <span id="L319" class="LineNr">319 </span>  <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal list2,<span class="Constant"> 0</span>
 <span id="L320" class="LineNr">320 </span>  <span class="Conceal">¦</span> <span class="Comment"># check structure like before</span>
-<span id="L321" class="LineNr">321 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy list
+<span id="L321" class="LineNr">321 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L322" class="LineNr">322 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
 <span id="L323" class="LineNr">323 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L324" class="LineNr">324 </span>  <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L325" class="LineNr">325 </span>  <span class="Conceal">¦</span> 20:&amp;:duplex-list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
+<span id="L325" class="LineNr">325 </span>  <span class="Conceal">¦</span> 20:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L326" class="LineNr">326 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L36'>prev</a> list2
 <span id="L327" class="LineNr">327 </span>  <span class="Conceal">¦</span> 30:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> first list2
-<span id="L328" class="LineNr">328 </span>  <span class="Conceal">¦</span> 40:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal list, list2
+<span id="L328" class="LineNr">328 </span>  <span class="Conceal">¦</span> 40:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal <a href='064list.mu.html#L6'>list</a>, list2
 <span id="L329" class="LineNr">329 </span>  ]
 <span id="L330" class="LineNr">330 </span>  memory-should-contain [
 <span id="L331" class="LineNr">331 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># remove returned non-null</span>
@@ -401,10 +401,10 @@ if ('onhashchange' in window) {
 <span id="L339" class="LineNr">339 </span>
 <span id="L340" class="LineNr">340 </span><span class="muScenario">scenario</span> removing-from-singleton-duplex-list [
 <span id="L341" class="LineNr">341 </span>  <span class="Constant">local-scope</span>
-<span id="L342" class="LineNr">342 </span>  list:&amp;:duplex-list:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
+<span id="L342" class="LineNr">342 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 3</span>,<span class="Constant"> 0</span>
 <span id="L343" class="LineNr">343 </span>  run [
-<span id="L344" class="LineNr">344 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> remove list, list
-<span id="L345" class="LineNr">345 </span>  <span class="Conceal">¦</span> 1:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy list
+<span id="L344" class="LineNr">344 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> remove <a href='064list.mu.html#L6'>list</a>, <a href='064list.mu.html#L6'>list</a>
+<span id="L345" class="LineNr">345 </span>  <span class="Conceal">¦</span> 1:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy <a href='064list.mu.html#L6'>list</a>
 <span id="L346" class="LineNr">346 </span>  ]
 <span id="L347" class="LineNr">347 </span>  memory-should-contain [
 <span id="L348" class="LineNr">348 </span>  <span class="Conceal">¦</span><span class="Constant"> 1</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># back to an empty list</span>
@@ -416,10 +416,10 @@ if ('onhashchange' in window) {
 <span id="L354" class="LineNr">354 </span><span class="Comment"># set end to 0 to delete everything past start.</span>
 <span id="L355" class="LineNr">355 </span><span class="Comment"># can't set start to 0 to delete everything before end, because there's no</span>
 <span id="L356" class="LineNr">356 </span><span class="Comment"># clean way to return the new head pointer.</span>
-<span id="L357" class="LineNr">357 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L357'>remove-between</a> start:&amp;:duplex-list:_elem, end:&amp;:duplex-list:_elem/contained-in:start<span class="muRecipe"> -&gt; </span>start:&amp;:duplex-list:_elem [
+<span id="L357" class="LineNr">357 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L357'>remove-between</a> start:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem, end:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem/contained-in:start<span class="muRecipe"> -&gt; </span>start:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem [
 <span id="L358" class="LineNr">358 </span>  <span class="Constant">local-scope</span>
 <span id="L359" class="LineNr">359 </span>  <span class="Constant">load-ingredients</span>
-<span id="L360" class="LineNr">360 </span>  <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:duplex-list:_elem <span class="Special">&lt;-</span> get *start, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>
+<span id="L360" class="LineNr">360 </span>  <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem <span class="Special">&lt;-</span> get *start, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>
 <span id="L361" class="LineNr">361 </span>  nothing-to-delete?:bool <span class="Special">&lt;-</span> equal <a href='065duplex_list.mu.html#L29'>next</a>, end
 <span id="L362" class="LineNr">362 </span>  <span class="muControl">return-if</span> nothing-to-delete?
 <span id="L363" class="LineNr">363 </span>  assert <a href='065duplex_list.mu.html#L29'>next</a>, <span class="Constant">[malformed duplex list]</span>
@@ -430,8 +430,8 @@ if ('onhashchange' in window) {
 <span id="L368" class="LineNr">368 </span>  <span class="muControl">return-unless</span> end
 <span id="L369" class="LineNr">369 </span>  <span class="Comment"># end-&gt;prev-&gt;next = 0</span>
 <span id="L370" class="LineNr">370 </span>  <span class="Comment"># end-&gt;prev = start</span>
-<span id="L371" class="LineNr">371 </span>  <a href='065duplex_list.mu.html#L36'>prev</a>:&amp;:duplex-list:_elem <span class="Special">&lt;-</span> get *end, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>
-<span id="L372" class="LineNr">372 </span>  assert <a href='065duplex_list.mu.html#L36'>prev</a>, <span class="Constant">[malformed duplex list - 2]</span>
+<span id="L371" class="LineNr">371 </span>  <a href='065duplex_list.mu.html#L36'>prev</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem <span class="Special">&lt;-</span> get *end, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>
+<span id="L372" class="LineNr">372 </span>  assert <a href='065duplex_list.mu.html#L36'>prev</a>, <span class="Constant">[malformed duplex <a href='064list.mu.html#L6'>list</a> - 2]</span>
 <span id="L373" class="LineNr">373 </span>  *prev <span class="Special">&lt;-</span> put *prev, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>,<span class="Constant"> 0</span>
 <span id="L374" class="LineNr">374 </span>  *end <span class="Special">&lt;-</span> put *end, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, start
 <span id="L375" class="LineNr">375 </span>]
@@ -439,25 +439,25 @@ if ('onhashchange' in window) {
 <span id="L377" class="LineNr">377 </span><span class="muScenario">scenario</span> remove-range [
 <span id="L378" class="LineNr">378 </span>  <span class="Comment"># construct a duplex list with six elements [13, 14, 15, 16, 17, 18]</span>
 <span id="L379" class="LineNr">379 </span>  <span class="Constant">local-scope</span>
-<span id="L380" class="LineNr">380 </span>  list:&amp;:duplex-list:char <span class="Special">&lt;-</span> push<span class="Constant"> 18</span>,<span class="Constant"> 0</span>
-<span id="L381" class="LineNr">381 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 17</span>, list
-<span id="L382" class="LineNr">382 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 16</span>, list
-<span id="L383" class="LineNr">383 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 15</span>, list
-<span id="L384" class="LineNr">384 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 14</span>, list
-<span id="L385" class="LineNr">385 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 13</span>, list
+<span id="L380" class="LineNr">380 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 18</span>,<span class="Constant"> 0</span>
+<span id="L381" class="LineNr">381 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 17</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L382" class="LineNr">382 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 16</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L383" class="LineNr">383 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 15</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L384" class="LineNr">384 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 14</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L385" class="LineNr">385 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 13</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L386" class="LineNr">386 </span>  run [
 <span id="L387" class="LineNr">387 </span>  <span class="Conceal">¦</span> <span class="Comment"># delete 16 onwards</span>
 <span id="L388" class="LineNr">388 </span>  <span class="Conceal">¦</span> <span class="Comment"># first pointer: to the third element</span>
-<span id="L389" class="LineNr">389 </span>  <span class="Conceal">¦</span> list2:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L389" class="LineNr">389 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L390" class="LineNr">390 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L391" class="LineNr">391 </span>  <span class="Conceal">¦</span> list2 <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L357'>remove-between</a> list2,<span class="Constant"> 0</span>
 <span id="L392" class="LineNr">392 </span>  <span class="Conceal">¦</span> <span class="Comment"># now check the list</span>
 <span id="L393" class="LineNr">393 </span>  <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *list, <span class="Constant">value:offset</span>
-<span id="L394" class="LineNr">394 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L394" class="LineNr">394 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L395" class="LineNr">395 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *list, <span class="Constant">value:offset</span>
-<span id="L396" class="LineNr">396 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L396" class="LineNr">396 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L397" class="LineNr">397 </span>  <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *list, <span class="Constant">value:offset</span>
-<span id="L398" class="LineNr">398 </span>  <span class="Conceal">¦</span> 20:&amp;:duplex-list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L398" class="LineNr">398 </span>  <span class="Conceal">¦</span> 20:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L399" class="LineNr">399 </span>  ]
 <span id="L400" class="LineNr">400 </span>  memory-should-contain [
 <span id="L401" class="LineNr">401 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 13</span>
@@ -470,29 +470,29 @@ if ('onhashchange' in window) {
 <span id="L408" class="LineNr">408 </span><span class="muScenario">scenario</span> remove-range-to-final [
 <span id="L409" class="LineNr">409 </span>  <span class="Constant">local-scope</span>
 <span id="L410" class="LineNr">410 </span>  <span class="Comment"># construct a duplex list with six elements [13, 14, 15, 16, 17, 18]</span>
-<span id="L411" class="LineNr">411 </span>  list:&amp;:duplex-list:char <span class="Special">&lt;-</span> push<span class="Constant"> 18</span>,<span class="Constant"> 0</span>
-<span id="L412" class="LineNr">412 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 17</span>, list
-<span id="L413" class="LineNr">413 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 16</span>, list
-<span id="L414" class="LineNr">414 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 15</span>, list
-<span id="L415" class="LineNr">415 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 14</span>, list
-<span id="L416" class="LineNr">416 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 13</span>, list
+<span id="L411" class="LineNr">411 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 18</span>,<span class="Constant"> 0</span>
+<span id="L412" class="LineNr">412 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 17</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L413" class="LineNr">413 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 16</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L414" class="LineNr">414 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 15</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L415" class="LineNr">415 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 14</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L416" class="LineNr">416 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 13</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L417" class="LineNr">417 </span>  run [
 <span id="L418" class="LineNr">418 </span>  <span class="Conceal">¦</span> <span class="Comment"># delete 15, 16 and 17</span>
 <span id="L419" class="LineNr">419 </span>  <span class="Conceal">¦</span> <span class="Comment"># start pointer: to the second element</span>
-<span id="L420" class="LineNr">420 </span>  <span class="Conceal">¦</span> list2:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L420" class="LineNr">420 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L421" class="LineNr">421 </span>  <span class="Conceal">¦</span> <span class="Comment"># end pointer: to the last (sixth) element</span>
-<span id="L422" class="LineNr">422 </span>  <span class="Conceal">¦</span> end:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
+<span id="L422" class="LineNr">422 </span>  <span class="Conceal">¦</span> end:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list2
 <span id="L423" class="LineNr">423 </span>  <span class="Conceal">¦</span> end <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> end
 <span id="L424" class="LineNr">424 </span>  <span class="Conceal">¦</span> end <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> end
 <span id="L425" class="LineNr">425 </span>  <span class="Conceal">¦</span> end <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> end
 <span id="L426" class="LineNr">426 </span>  <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L357'>remove-between</a> list2, end
 <span id="L427" class="LineNr">427 </span>  <span class="Conceal">¦</span> <span class="Comment"># now check the list</span>
 <span id="L428" class="LineNr">428 </span>  <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *list, <span class="Constant">value:offset</span>
-<span id="L429" class="LineNr">429 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L429" class="LineNr">429 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L430" class="LineNr">430 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *list, <span class="Constant">value:offset</span>
-<span id="L431" class="LineNr">431 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L431" class="LineNr">431 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L432" class="LineNr">432 </span>  <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *list, <span class="Constant">value:offset</span>
-<span id="L433" class="LineNr">433 </span>  <span class="Conceal">¦</span> 20:&amp;:duplex-list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L433" class="LineNr">433 </span>  <span class="Conceal">¦</span> 20:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L434" class="LineNr">434 </span>  ]
 <span id="L435" class="LineNr">435 </span>  memory-should-contain [
 <span id="L436" class="LineNr">436 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 13</span>
@@ -505,20 +505,20 @@ if ('onhashchange' in window) {
 <span id="L443" class="LineNr">443 </span><span class="muScenario">scenario</span> remove-range-empty [
 <span id="L444" class="LineNr">444 </span>  <span class="Constant">local-scope</span>
 <span id="L445" class="LineNr">445 </span>  <span class="Comment"># construct a duplex list with three elements [13, 14, 15]</span>
-<span id="L446" class="LineNr">446 </span>  list:&amp;:duplex-list:char <span class="Special">&lt;-</span> push<span class="Constant"> 15</span>,<span class="Constant"> 0</span>
-<span id="L447" class="LineNr">447 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 14</span>, list
-<span id="L448" class="LineNr">448 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 13</span>, list
+<span id="L446" class="LineNr">446 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 15</span>,<span class="Constant"> 0</span>
+<span id="L447" class="LineNr">447 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 14</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L448" class="LineNr">448 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 13</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L449" class="LineNr">449 </span>  run [
 <span id="L450" class="LineNr">450 </span>  <span class="Conceal">¦</span> <span class="Comment"># delete between first and second element (i.e. nothing)</span>
-<span id="L451" class="LineNr">451 </span>  <span class="Conceal">¦</span> list2:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
-<span id="L452" class="LineNr">452 </span>  <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L357'>remove-between</a> list, list2
+<span id="L451" class="LineNr">451 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
+<span id="L452" class="LineNr">452 </span>  <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L357'>remove-between</a> <a href='064list.mu.html#L6'>list</a>, list2
 <span id="L453" class="LineNr">453 </span>  <span class="Conceal">¦</span> <span class="Comment"># now check the list</span>
 <span id="L454" class="LineNr">454 </span>  <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *list, <span class="Constant">value:offset</span>
-<span id="L455" class="LineNr">455 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L455" class="LineNr">455 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L456" class="LineNr">456 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *list, <span class="Constant">value:offset</span>
-<span id="L457" class="LineNr">457 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L457" class="LineNr">457 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L458" class="LineNr">458 </span>  <span class="Conceal">¦</span> 12:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *list, <span class="Constant">value:offset</span>
-<span id="L459" class="LineNr">459 </span>  <span class="Conceal">¦</span> 20:&amp;:duplex-list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L459" class="LineNr">459 </span>  <span class="Conceal">¦</span> 20:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L460" class="LineNr">460 </span>  ]
 <span id="L461" class="LineNr">461 </span>  <span class="Comment"># no change</span>
 <span id="L462" class="LineNr">462 </span>  memory-should-contain [
@@ -532,21 +532,21 @@ if ('onhashchange' in window) {
 <span id="L470" class="LineNr">470 </span><span class="muScenario">scenario</span> remove-range-to-end [
 <span id="L471" class="LineNr">471 </span>  <span class="Constant">local-scope</span>
 <span id="L472" class="LineNr">472 </span>  <span class="Comment"># construct a duplex list with six elements [13, 14, 15, 16, 17, 18]</span>
-<span id="L473" class="LineNr">473 </span>  list:&amp;:duplex-list:char <span class="Special">&lt;-</span> push<span class="Constant"> 18</span>,<span class="Constant"> 0</span>
-<span id="L474" class="LineNr">474 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 17</span>, list
-<span id="L475" class="LineNr">475 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 16</span>, list
-<span id="L476" class="LineNr">476 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 15</span>, list
-<span id="L477" class="LineNr">477 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 14</span>, list
-<span id="L478" class="LineNr">478 </span>  list <span class="Special">&lt;-</span> push<span class="Constant"> 13</span>, list
+<span id="L473" class="LineNr">473 </span>  <a href='064list.mu.html#L6'>list</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push<span class="Constant"> 18</span>,<span class="Constant"> 0</span>
+<span id="L474" class="LineNr">474 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 17</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L475" class="LineNr">475 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 16</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L476" class="LineNr">476 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 15</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L477" class="LineNr">477 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 14</span>, <a href='064list.mu.html#L6'>list</a>
+<span id="L478" class="LineNr">478 </span>  <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> push<span class="Constant"> 13</span>, <a href='064list.mu.html#L6'>list</a>
 <span id="L479" class="LineNr">479 </span>  run [
 <span id="L480" class="LineNr">480 </span>  <span class="Conceal">¦</span> <span class="Comment"># remove the third element and beyond</span>
-<span id="L481" class="LineNr">481 </span>  <span class="Conceal">¦</span> list2:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L481" class="LineNr">481 </span>  <span class="Conceal">¦</span> list2:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L482" class="LineNr">482 </span>  <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L357'>remove-between</a> list2,<span class="Constant"> 0</span>
 <span id="L483" class="LineNr">483 </span>  <span class="Conceal">¦</span> <span class="Comment"># now check the list</span>
 <span id="L484" class="LineNr">484 </span>  <span class="Conceal">¦</span> 10:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *list, <span class="Constant">value:offset</span>
-<span id="L485" class="LineNr">485 </span>  <span class="Conceal">¦</span> list <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L485" class="LineNr">485 </span>  <span class="Conceal">¦</span> <a href='064list.mu.html#L6'>list</a> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L486" class="LineNr">486 </span>  <span class="Conceal">¦</span> 11:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *list, <span class="Constant">value:offset</span>
-<span id="L487" class="LineNr">487 </span>  <span class="Conceal">¦</span> 20:&amp;:duplex-list:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> list
+<span id="L487" class="LineNr">487 </span>  <span class="Conceal">¦</span> 20:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> <a href='064list.mu.html#L6'>list</a>
 <span id="L488" class="LineNr">488 </span>  ]
 <span id="L489" class="LineNr">489 </span>  memory-should-contain [
 <span id="L490" class="LineNr">490 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 13</span>
@@ -556,19 +556,19 @@ if ('onhashchange' in window) {
 <span id="L494" class="LineNr">494 </span>]
 <span id="L495" class="LineNr">495 </span>
 <span id="L496" class="LineNr">496 </span><span class="Comment"># insert list beginning at 'new' after 'in'</span>
-<span id="L497" class="LineNr">497 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L497'>insert-range</a> in:&amp;:duplex-list:_elem, start:&amp;:duplex-list:_elem/contained-in:in<span class="muRecipe"> -&gt; </span>in:&amp;:duplex-list:_elem [
+<span id="L497" class="LineNr">497 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L497'>insert-range</a> in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem, start:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem/contained-in:in<span class="muRecipe"> -&gt; </span>in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem [
 <span id="L498" class="LineNr">498 </span>  <span class="Constant">local-scope</span>
 <span id="L499" class="LineNr">499 </span>  <span class="Constant">load-ingredients</span>
 <span id="L500" class="LineNr">500 </span>  <span class="muControl">return-unless</span> in
 <span id="L501" class="LineNr">501 </span>  <span class="muControl">return-unless</span> start
-<span id="L502" class="LineNr">502 </span>  end:&amp;:duplex-list:_elem <span class="Special">&lt;-</span> copy start
+<span id="L502" class="LineNr">502 </span>  end:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem <span class="Special">&lt;-</span> copy start
 <span id="L503" class="LineNr">503 </span>  <span class="Delimiter">{</span>
-<span id="L504" class="LineNr">504 </span>  <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:duplex-list:_elem <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> end/insert-range
+<span id="L504" class="LineNr">504 </span>  <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> end/insert-range
 <span id="L505" class="LineNr">505 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='065duplex_list.mu.html#L29'>next</a>
 <span id="L506" class="LineNr">506 </span>  <span class="Conceal">¦</span> end <span class="Special">&lt;-</span> copy <a href='065duplex_list.mu.html#L29'>next</a>
 <span id="L507" class="LineNr">507 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L508" class="LineNr">508 </span>  <span class="Delimiter">}</span>
-<span id="L509" class="LineNr">509 </span>  <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:duplex-list:_elem <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> in
+<span id="L509" class="LineNr">509 </span>  <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> in
 <span id="L510" class="LineNr">510 </span>  *end <span class="Special">&lt;-</span> put *end, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, <a href='065duplex_list.mu.html#L29'>next</a>
 <span id="L511" class="LineNr">511 </span>  <span class="Delimiter">{</span>
 <span id="L512" class="LineNr">512 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='065duplex_list.mu.html#L29'>next</a>
@@ -578,21 +578,21 @@ if ('onhashchange' in window) {
 <span id="L516" class="LineNr">516 </span>  *start <span class="Special">&lt;-</span> put *start, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, in
 <span id="L517" class="LineNr">517 </span>]
 <span id="L518" class="LineNr">518 </span>
-<span id="L519" class="LineNr">519 </span><span class="muRecipe">def</span> append in:&amp;:duplex-list:_elem, new:&amp;:duplex-list:_elem/contained-in:in<span class="muRecipe"> -&gt; </span>in:&amp;:duplex-list:_elem [
+<span id="L519" class="LineNr">519 </span><span class="muRecipe">def</span> append in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem, new:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem/contained-in:in<span class="muRecipe"> -&gt; </span>in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem [
 <span id="L520" class="LineNr">520 </span>  <span class="Constant">local-scope</span>
 <span id="L521" class="LineNr">521 </span>  <span class="Constant">load-ingredients</span>
-<span id="L522" class="LineNr">522 </span>  <a href='065duplex_list.mu.html#L528'>last</a>:&amp;:duplex-list:_elem <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L528'>last</a> in
+<span id="L522" class="LineNr">522 </span>  <a href='065duplex_list.mu.html#L528'>last</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L528'>last</a> in
 <span id="L523" class="LineNr">523 </span>  *last <span class="Special">&lt;-</span> put *last, <span class="Constant"><a href='065duplex_list.mu.html#L29'>next</a>:offset</span>, new
 <span id="L524" class="LineNr">524 </span>  <span class="muControl">return-unless</span> new
 <span id="L525" class="LineNr">525 </span>  *new <span class="Special">&lt;-</span> put *new, <span class="Constant"><a href='065duplex_list.mu.html#L36'>prev</a>:offset</span>, <a href='065duplex_list.mu.html#L528'>last</a>
 <span id="L526" class="LineNr">526 </span>]
 <span id="L527" class="LineNr">527 </span>
-<span id="L528" class="LineNr">528 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L528'>last</a> in:&amp;:duplex-list:_elem<span class="muRecipe"> -&gt; </span>result:&amp;:duplex-list:_elem [
+<span id="L528" class="LineNr">528 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L528'>last</a> in:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem<span class="muRecipe"> -&gt; </span>result:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem [
 <span id="L529" class="LineNr">529 </span>  <span class="Constant">local-scope</span>
 <span id="L530" class="LineNr">530 </span>  <span class="Constant">load-ingredients</span>
 <span id="L531" class="LineNr">531 </span>  result <span class="Special">&lt;-</span> copy in
 <span id="L532" class="LineNr">532 </span>  <span class="Delimiter">{</span>
-<span id="L533" class="LineNr">533 </span>  <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:duplex-list:_elem <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> result
+<span id="L533" class="LineNr">533 </span>  <span class="Conceal">¦</span> <a href='065duplex_list.mu.html#L29'>next</a>:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem <span class="Special">&lt;-</span> <a href='065duplex_list.mu.html#L29'>next</a> result
 <span id="L534" class="LineNr">534 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='065duplex_list.mu.html#L29'>next</a>
 <span id="L535" class="LineNr">535 </span>  <span class="Conceal">¦</span> result <span class="Special">&lt;-</span> copy <a href='065duplex_list.mu.html#L29'>next</a>
 <span id="L536" class="LineNr">536 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
@@ -600,7 +600,7 @@ if ('onhashchange' in window) {
 <span id="L538" class="LineNr">538 </span>]
 <span id="L539" class="LineNr">539 </span>
 <span id="L540" class="LineNr">540 </span><span class="Comment"># helper for debugging</span>
-<span id="L541" class="LineNr">541 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L541'>dump-from</a> x:&amp;:duplex-list:_elem [
+<span id="L541" class="LineNr">541 </span><span class="muRecipe">def</span> <a href='065duplex_list.mu.html#L541'>dump-from</a> x:&amp;:<a href='065duplex_list.mu.html#L3'>duplex-list</a>:_elem [
 <span id="L542" class="LineNr">542 </span>  <span class="Constant">local-scope</span>
 <span id="L543" class="LineNr">543 </span>  <span class="Constant">load-ingredients</span>
 <span id="L544" class="LineNr">544 </span>  $print x, <span class="Constant">[: ]</span>
diff --git a/html/066stream.mu.html b/html/066stream.mu.html
index 556654bd..4a993384 100644
--- a/html/066stream.mu.html
+++ b/html/066stream.mu.html
@@ -60,12 +60,12 @@ if ('onhashchange' in window) {
 <body onload='JumpToLine();'>
 <pre id='vimCodeElement'>
 <span id="L1" class="LineNr"> 1 </span><span class="Comment"># new type to help incrementally scan arrays</span>
-<span id="L2" class="LineNr"> 2 </span><span class="muData">container</span> stream:_elem [
+<span id="L2" class="LineNr"> 2 </span><span class="muData">container</span> <a href='066stream.mu.html#L2'>stream</a>:_elem [
 <span id="L3" class="LineNr"> 3 </span>  index:num
 <span id="L4" class="LineNr"> 4 </span>  data:&amp;:@:_elem
 <span id="L5" class="LineNr"> 5 </span>]
 <span id="L6" class="LineNr"> 6 </span>
-<span id="L7" class="LineNr"> 7 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L7'>new-stream</a> s:&amp;:@:_elem<span class="muRecipe"> -&gt; </span>result:&amp;:stream:_elem [
+<span id="L7" class="LineNr"> 7 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L7'>new-stream</a> s:&amp;:@:_elem<span class="muRecipe"> -&gt; </span>result:&amp;:<a href='066stream.mu.html#L2'>stream</a>:_elem [
 <span id="L8" class="LineNr"> 8 </span>  <span class="Constant">local-scope</span>
 <span id="L9" class="LineNr"> 9 </span>  <span class="Constant">load-ingredients</span>
 <span id="L10" class="LineNr">10 </span>  <span class="muControl">return-unless</span> s, <span class="Constant">0/null</span>
@@ -74,17 +74,17 @@ if ('onhashchange' in window) {
 <span id="L13" class="LineNr">13 </span>  *result <span class="Special">&lt;-</span> put *result, <span class="Constant">data:offset</span>, s
 <span id="L14" class="LineNr">14 </span>]
 <span id="L15" class="LineNr">15 </span>
-<span id="L16" class="LineNr">16 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L16'>rewind</a> in:&amp;:stream:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:stream:_elem [
+<span id="L16" class="LineNr">16 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L16'>rewind</a> in:&amp;:<a href='066stream.mu.html#L2'>stream</a>:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:<a href='066stream.mu.html#L2'>stream</a>:_elem [
 <span id="L17" class="LineNr">17 </span>  <span class="Constant">local-scope</span>
 <span id="L18" class="LineNr">18 </span>  <span class="Constant">load-ingredients</span>
 <span id="L19" class="LineNr">19 </span>  <span class="muControl">return-unless</span> in
 <span id="L20" class="LineNr">20 </span>  *in <span class="Special">&lt;-</span> put *in, <span class="Constant">index:offset</span>,<span class="Constant"> 0</span>
 <span id="L21" class="LineNr">21 </span>]
 <span id="L22" class="LineNr">22 </span>
-<span id="L23" class="LineNr">23 </span><span class="muRecipe">def</span> read in:&amp;:stream:_elem<span class="muRecipe"> -&gt; </span>result:_elem, empty?:bool, in:&amp;:stream:_elem [
+<span id="L23" class="LineNr">23 </span><span class="muRecipe">def</span> read in:&amp;:<a href='066stream.mu.html#L2'>stream</a>:_elem<span class="muRecipe"> -&gt; </span>result:_elem, empty?:bool, in:&amp;:<a href='066stream.mu.html#L2'>stream</a>:_elem [
 <span id="L24" class="LineNr">24 </span>  <span class="Constant">local-scope</span>
 <span id="L25" class="LineNr">25 </span>  <span class="Constant">load-ingredients</span>
-<span id="L26" class="LineNr">26 </span>  assert in, <span class="Constant">[cannot read; stream has no data]</span>
+<span id="L26" class="LineNr">26 </span>  assert in, <span class="Constant">[cannot read; <a href='066stream.mu.html#L2'>stream</a> has no data]</span>
 <span id="L27" class="LineNr">27 </span>  empty? <span class="Special">&lt;-</span> copy <span class="Constant">0/false</span>
 <span id="L28" class="LineNr">28 </span>  idx:num <span class="Special">&lt;-</span> get *in, <span class="Constant">index:offset</span>
 <span id="L29" class="LineNr">29 </span>  s:&amp;:@:_elem <span class="Special">&lt;-</span> get *in, <span class="Constant">data:offset</span>
@@ -100,10 +100,10 @@ if ('onhashchange' in window) {
 <span id="L39" class="LineNr">39 </span>  *in <span class="Special">&lt;-</span> put *in, <span class="Constant">index:offset</span>, idx
 <span id="L40" class="LineNr">40 </span>]
 <span id="L41" class="LineNr">41 </span>
-<span id="L42" class="LineNr">42 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L42'>peek</a> in:&amp;:stream:_elem<span class="muRecipe"> -&gt; </span>result:_elem, empty?:bool [
+<span id="L42" class="LineNr">42 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L42'>peek</a> in:&amp;:<a href='066stream.mu.html#L2'>stream</a>:_elem<span class="muRecipe"> -&gt; </span>result:_elem, empty?:bool [
 <span id="L43" class="LineNr">43 </span>  <span class="Constant">local-scope</span>
 <span id="L44" class="LineNr">44 </span>  <span class="Constant">load-ingredients</span>
-<span id="L45" class="LineNr">45 </span>  assert in, <span class="Constant">[cannot peek; stream has no data]</span>
+<span id="L45" class="LineNr">45 </span>  assert in, <span class="Constant">[cannot peek; <a href='066stream.mu.html#L2'>stream</a> has no data]</span>
 <span id="L46" class="LineNr">46 </span>  empty?:bool <span class="Special">&lt;-</span> copy <span class="Constant">0/false</span>
 <span id="L47" class="LineNr">47 </span>  idx:num <span class="Special">&lt;-</span> get *in, <span class="Constant">index:offset</span>
 <span id="L48" class="LineNr">48 </span>  s:&amp;:@:_elem <span class="Special">&lt;-</span> get *in, <span class="Constant">data:offset</span>
@@ -117,10 +117,10 @@ if ('onhashchange' in window) {
 <span id="L56" class="LineNr">56 </span>  result <span class="Special">&lt;-</span> index *s, idx
 <span id="L57" class="LineNr">57 </span>]
 <span id="L58" class="LineNr">58 </span>
-<span id="L59" class="LineNr">59 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L59'>read-line</a> in:&amp;:stream:char<span class="muRecipe"> -&gt; </span>result:text, in:&amp;:stream:char [
+<span id="L59" class="LineNr">59 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L59'>read-line</a> in:&amp;:<a href='066stream.mu.html#L2'>stream</a>:char<span class="muRecipe"> -&gt; </span>result:text, in:&amp;:<a href='066stream.mu.html#L2'>stream</a>:char [
 <span id="L60" class="LineNr">60 </span>  <span class="Constant">local-scope</span>
 <span id="L61" class="LineNr">61 </span>  <span class="Constant">load-ingredients</span>
-<span id="L62" class="LineNr">62 </span>  assert in, <span class="Constant">[cannot read-line; stream has no data]</span>
+<span id="L62" class="LineNr">62 </span>  assert in, <span class="Constant">[cannot read-line; <a href='066stream.mu.html#L2'>stream</a> has no data]</span>
 <span id="L63" class="LineNr">63 </span>  idx:num <span class="Special">&lt;-</span> get *in, <span class="Constant">index:offset</span>
 <span id="L64" class="LineNr">64 </span>  s:text <span class="Special">&lt;-</span> get *in, <span class="Constant">data:offset</span>
 <span id="L65" class="LineNr">65 </span>  next-idx:num <span class="Special">&lt;-</span> find-next s, <span class="Constant">10/newline</span>, idx
@@ -130,10 +130,10 @@ if ('onhashchange' in window) {
 <span id="L69" class="LineNr">69 </span>  *in <span class="Special">&lt;-</span> put *in, <span class="Constant">index:offset</span>, idx
 <span id="L70" class="LineNr">70 </span>]
 <span id="L71" class="LineNr">71 </span>
-<span id="L72" class="LineNr">72 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L72'>end-of-stream?</a> in:&amp;:stream:_elem<span class="muRecipe"> -&gt; </span>result:bool [
+<span id="L72" class="LineNr">72 </span><span class="muRecipe">def</span> <a href='066stream.mu.html#L72'>end-of-stream?</a> in:&amp;:<a href='066stream.mu.html#L2'>stream</a>:_elem<span class="muRecipe"> -&gt; </span>result:bool [
 <span id="L73" class="LineNr">73 </span>  <span class="Constant">local-scope</span>
 <span id="L74" class="LineNr">74 </span>  <span class="Constant">load-ingredients</span>
-<span id="L75" class="LineNr">75 </span>  assert in, <span class="Constant">[cannot check end-of-stream?; stream has no data]</span>
+<span id="L75" class="LineNr">75 </span>  assert in, <span class="Constant">[cannot check end-of-stream?; <a href='066stream.mu.html#L2'>stream</a> has no data]</span>
 <span id="L76" class="LineNr">76 </span>  idx:num <span class="Special">&lt;-</span> get *in, <span class="Constant">index:offset</span>
 <span id="L77" class="LineNr">77 </span>  s:&amp;:@:_elem <span class="Special">&lt;-</span> get *in, <span class="Constant">data:offset</span>
 <span id="L78" class="LineNr">78 </span>  len:num <span class="Special">&lt;-</span> length *s
diff --git a/html/068random.mu.html b/html/068random.mu.html
index 9828a44e..2c695c2f 100644
--- a/html/068random.mu.html
+++ b/html/068random.mu.html
@@ -59,7 +59,7 @@ if ('onhashchange' in window) {
 </head>
 <body onload='JumpToLine();'>
 <pre id='vimCodeElement'>
-<span id="L1" class="LineNr"> 1 </span><span class="muRecipe">def</span> <a href='068random.mu.html#L1'>random</a> generator:&amp;:stream:num<span class="muRecipe"> -&gt; </span>result:num, fail?:bool, generator:&amp;:stream:num [
+<span id="L1" class="LineNr"> 1 </span><span class="muRecipe">def</span> <a href='068random.mu.html#L1'>random</a> generator:&amp;:<a href='066stream.mu.html#L2'>stream</a>:num<span class="muRecipe"> -&gt; </span>result:num, fail?:bool, generator:&amp;:<a href='066stream.mu.html#L2'>stream</a>:num [
 <span id="L2" class="LineNr"> 2 </span>  <span class="Constant">local-scope</span>
 <span id="L3" class="LineNr"> 3 </span>  <span class="Constant">load-ingredients</span>
 <span id="L4" class="LineNr"> 4 </span>  <span class="Delimiter">{</span>
@@ -72,7 +72,7 @@ if ('onhashchange' in window) {
 <span id="L11" class="LineNr">11 </span>]
 <span id="L12" class="LineNr">12 </span>
 <span id="L13" class="LineNr">13 </span><span class="Comment"># helper for tests</span>
-<span id="L14" class="LineNr">14 </span><span class="muRecipe">def</span> <a href='068random.mu.html#L14'>assume-random-numbers</a><span class="muRecipe"> -&gt; </span>result:&amp;:stream:num [
+<span id="L14" class="LineNr">14 </span><span class="muRecipe">def</span> <a href='068random.mu.html#L14'>assume-random-numbers</a><span class="muRecipe"> -&gt; </span>result:&amp;:<a href='066stream.mu.html#L2'>stream</a>:num [
 <span id="L15" class="LineNr">15 </span>  <span class="Constant">local-scope</span>
 <span id="L16" class="LineNr">16 </span>  <span class="Constant">load-ingredients</span>
 <span id="L17" class="LineNr">17 </span>  <span class="Comment"># compute result-len, space to allocate in result</span>
@@ -98,11 +98,11 @@ if ('onhashchange' in window) {
 <span id="L37" class="LineNr">37 </span>
 <span id="L38" class="LineNr">38 </span><span class="muScenario">scenario</span> random-numbers-in-scenario [
 <span id="L39" class="LineNr">39 </span>  <span class="Constant">local-scope</span>
-<span id="L40" class="LineNr">40 </span>  source:&amp;:stream:num <span class="Special">&lt;-</span> <a href='068random.mu.html#L14'>assume-random-numbers</a><span class="Constant"> 34</span>,<span class="Constant"> 35</span>,<span class="Constant"> 37</span>
-<span id="L41" class="LineNr">41 </span>  1:num/<span class="Special">raw</span>, 2:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='068random.mu.html#L1'>random</a> source
-<span id="L42" class="LineNr">42 </span>  3:num/<span class="Special">raw</span>, 4:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='068random.mu.html#L1'>random</a> source
-<span id="L43" class="LineNr">43 </span>  5:num/<span class="Special">raw</span>, 6:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='068random.mu.html#L1'>random</a> source
-<span id="L44" class="LineNr">44 </span>  7:num/<span class="Special">raw</span>, 8:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='068random.mu.html#L1'>random</a> source
+<span id="L40" class="LineNr">40 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='066stream.mu.html#L2'>stream</a>:num <span class="Special">&lt;-</span> <a href='068random.mu.html#L14'>assume-random-numbers</a><span class="Constant"> 34</span>,<span class="Constant"> 35</span>,<span class="Constant"> 37</span>
+<span id="L41" class="LineNr">41 </span>  1:num/<span class="Special">raw</span>, 2:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='068random.mu.html#L1'>random</a> <a href='075channel.mu.html#L43'>source</a>
+<span id="L42" class="LineNr">42 </span>  3:num/<span class="Special">raw</span>, 4:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='068random.mu.html#L1'>random</a> <a href='075channel.mu.html#L43'>source</a>
+<span id="L43" class="LineNr">43 </span>  5:num/<span class="Special">raw</span>, 6:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='068random.mu.html#L1'>random</a> <a href='075channel.mu.html#L43'>source</a>
+<span id="L44" class="LineNr">44 </span>  7:num/<span class="Special">raw</span>, 8:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='068random.mu.html#L1'>random</a> <a href='075channel.mu.html#L43'>source</a>
 <span id="L45" class="LineNr">45 </span>  memory-should-contain [
 <span id="L46" class="LineNr">46 </span>  <span class="Conceal">¦</span><span class="Constant"> 1</span> <span class="Special">&lt;-</span><span class="Constant"> 34</span>
 <span id="L47" class="LineNr">47 </span>  <span class="Conceal">¦</span><span class="Constant"> 2</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># everything went well</span>
@@ -116,7 +116,7 @@ if ('onhashchange' in window) {
 <span id="L55" class="LineNr">55 </span>]
 <span id="L56" class="LineNr">56 </span>
 <span id="L57" class="LineNr">57 </span><span class="Comment"># generate a random integer in the semi-open interval [start, end)</span>
-<span id="L58" class="LineNr">58 </span><span class="muRecipe">def</span> <a href='068random.mu.html#L58'>random-in-range</a> generator:&amp;:stream:num, start:num, end:num<span class="muRecipe"> -&gt; </span>result:num, fail?:bool, generator:&amp;:stream:num [
+<span id="L58" class="LineNr">58 </span><span class="muRecipe">def</span> <a href='068random.mu.html#L58'>random-in-range</a> generator:&amp;:<a href='066stream.mu.html#L2'>stream</a>:num, start:num, end:num<span class="muRecipe"> -&gt; </span>result:num, fail?:bool, generator:&amp;:<a href='066stream.mu.html#L2'>stream</a>:num [
 <span id="L59" class="LineNr">59 </span>  <span class="Constant">local-scope</span>
 <span id="L60" class="LineNr">60 </span>  <span class="Constant">load-ingredients</span>
 <span id="L61" class="LineNr">61 </span>  result, fail?, generator <span class="Special">&lt;-</span> <a href='068random.mu.html#L1'>random</a> generator
@@ -128,8 +128,8 @@ if ('onhashchange' in window) {
 <span id="L67" class="LineNr">67 </span>
 <span id="L68" class="LineNr">68 </span><span class="muScenario">scenario</span> <a href='068random.mu.html#L58'>random-in-range</a> [
 <span id="L69" class="LineNr">69 </span>  <span class="Constant">local-scope</span>
-<span id="L70" class="LineNr">70 </span>  source:&amp;:stream:num <span class="Special">&lt;-</span> <a href='068random.mu.html#L14'>assume-random-numbers</a><span class="Constant"> 91</span>
-<span id="L71" class="LineNr">71 </span>  1:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='068random.mu.html#L58'>random-in-range</a> source,<span class="Constant"> 40</span>,<span class="Constant"> 50</span>
+<span id="L70" class="LineNr">70 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='066stream.mu.html#L2'>stream</a>:num <span class="Special">&lt;-</span> <a href='068random.mu.html#L14'>assume-random-numbers</a><span class="Constant"> 91</span>
+<span id="L71" class="LineNr">71 </span>  1:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='068random.mu.html#L58'>random-in-range</a> <a href='075channel.mu.html#L43'>source</a>,<span class="Constant"> 40</span>,<span class="Constant"> 50</span>
 <span id="L72" class="LineNr">72 </span>  memory-should-contain [
 <span id="L73" class="LineNr">73 </span>  <span class="Conceal">¦</span><span class="Constant"> 1</span> <span class="Special">&lt;-</span><span class="Constant"> 41</span>
 <span id="L74" class="LineNr">74 </span>  ]
diff --git a/html/070table.mu.html b/html/070table.mu.html
index 2a7ee07f..603e9997 100644
--- a/html/070table.mu.html
+++ b/html/070table.mu.html
@@ -67,7 +67,7 @@ if ('onhashchange' in window) {
 <span id="L5" class="LineNr">  5 </span>
 <span id="L6" class="LineNr">  6 </span><span class="muScenario">scenario</span> table-read-write [
 <span id="L7" class="LineNr">  7 </span>  <span class="Constant">local-scope</span>
-<span id="L8" class="LineNr">  8 </span>  tab:&amp;:table:num:num <span class="Special">&lt;-</span> <a href='070table.mu.html#L56'>new-table</a><span class="Constant"> 30</span>
+<span id="L8" class="LineNr">  8 </span>  tab:&amp;:<a href='070table.mu.html#L44'>table</a>:num:num <span class="Special">&lt;-</span> <a href='070table.mu.html#L56'>new-table</a><span class="Constant"> 30</span>
 <span id="L9" class="LineNr">  9 </span>  run [
 <span id="L10" class="LineNr"> 10 </span>  <span class="Conceal">¦</span> put-index tab,<span class="Constant"> 12</span>,<span class="Constant"> 34</span>
 <span id="L11" class="LineNr"> 11 </span>  <span class="Conceal">¦</span> 60:num/<span class="Special">raw</span>, 61:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> index tab,<span class="Constant"> 12</span>
@@ -80,7 +80,7 @@ if ('onhashchange' in window) {
 <span id="L18" class="LineNr"> 18 </span>
 <span id="L19" class="LineNr"> 19 </span><span class="muScenario">scenario</span> table-read-write-non-integer [
 <span id="L20" class="LineNr"> 20 </span>  <span class="Constant">local-scope</span>
-<span id="L21" class="LineNr"> 21 </span>  tab:&amp;:table:text:num <span class="Special">&lt;-</span> <a href='070table.mu.html#L56'>new-table</a><span class="Constant"> 30</span>
+<span id="L21" class="LineNr"> 21 </span>  tab:&amp;:<a href='070table.mu.html#L44'>table</a>:text:num <span class="Special">&lt;-</span> <a href='070table.mu.html#L56'>new-table</a><span class="Constant"> 30</span>
 <span id="L22" class="LineNr"> 22 </span>  run [
 <span id="L23" class="LineNr"> 23 </span>  <span class="Conceal">¦</span> put-index tab, <span class="Constant">[abc def]</span>,<span class="Constant"> 34</span>
 <span id="L24" class="LineNr"> 24 </span>  <span class="Conceal">¦</span> 1:num/<span class="Special">raw</span>, 2:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> index tab, <span class="Constant">[abc def]</span>
@@ -93,7 +93,7 @@ if ('onhashchange' in window) {
 <span id="L31" class="LineNr"> 31 </span>
 <span id="L32" class="LineNr"> 32 </span><span class="muScenario">scenario</span> table-read-not-found [
 <span id="L33" class="LineNr"> 33 </span>  <span class="Constant">local-scope</span>
-<span id="L34" class="LineNr"> 34 </span>  tab:&amp;:table:text:num <span class="Special">&lt;-</span> <a href='070table.mu.html#L56'>new-table</a><span class="Constant"> 30</span>
+<span id="L34" class="LineNr"> 34 </span>  tab:&amp;:<a href='070table.mu.html#L44'>table</a>:text:num <span class="Special">&lt;-</span> <a href='070table.mu.html#L56'>new-table</a><span class="Constant"> 30</span>
 <span id="L35" class="LineNr"> 35 </span>  run [
 <span id="L36" class="LineNr"> 36 </span>  <span class="Conceal">¦</span> 1:num/<span class="Special">raw</span>, 2:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> index tab, <span class="Constant">[abc def]</span>
 <span id="L37" class="LineNr"> 37 </span>  ]
@@ -103,29 +103,29 @@ if ('onhashchange' in window) {
 <span id="L41" class="LineNr"> 41 </span>  ]
 <span id="L42" class="LineNr"> 42 </span>]
 <span id="L43" class="LineNr"> 43 </span>
-<span id="L44" class="LineNr"> 44 </span><span class="muData">container</span> table:_key:_value [
+<span id="L44" class="LineNr"> 44 </span><span class="muData">container</span> <a href='070table.mu.html#L44'>table</a>:_key:_value [
 <span id="L45" class="LineNr"> 45 </span>  length:num
 <span id="L46" class="LineNr"> 46 </span>  <a href='075channel.mu.html#L379'>capacity</a>:num
-<span id="L47" class="LineNr"> 47 </span>  data:&amp;:@:table-row:_key:_value
+<span id="L47" class="LineNr"> 47 </span>  data:&amp;:@:<a href='070table.mu.html#L50'>table-row</a>:_key:_value
 <span id="L48" class="LineNr"> 48 </span>]
 <span id="L49" class="LineNr"> 49 </span>
-<span id="L50" class="LineNr"> 50 </span><span class="muData">container</span> table-row:_key:_value [
+<span id="L50" class="LineNr"> 50 </span><span class="muData">container</span> <a href='070table.mu.html#L50'>table-row</a>:_key:_value [
 <span id="L51" class="LineNr"> 51 </span>  occupied?:bool
 <span id="L52" class="LineNr"> 52 </span>  key:_key
 <span id="L53" class="LineNr"> 53 </span>  value:_value
 <span id="L54" class="LineNr"> 54 </span>]
 <span id="L55" class="LineNr"> 55 </span>
-<span id="L56" class="LineNr"> 56 </span><span class="muRecipe">def</span> <a href='070table.mu.html#L56'>new-table</a> <a href='075channel.mu.html#L379'>capacity</a>:num<span class="muRecipe"> -&gt; </span>result:&amp;:table:_key:_value [
+<span id="L56" class="LineNr"> 56 </span><span class="muRecipe">def</span> <a href='070table.mu.html#L56'>new-table</a> <a href='075channel.mu.html#L379'>capacity</a>:num<span class="muRecipe"> -&gt; </span>result:&amp;:<a href='070table.mu.html#L44'>table</a>:_key:_value [
 <span id="L57" class="LineNr"> 57 </span>  <span class="Constant">local-scope</span>
 <span id="L58" class="LineNr"> 58 </span>  <span class="Constant">load-ingredients</span>
 <span id="L59" class="LineNr"> 59 </span>  result <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(table _key _value): type<span class="Delimiter">}</span>
-<span id="L60" class="LineNr"> 60 </span>  data:&amp;:@:table-row:_key:_value <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(table-row _key _value): type<span class="Delimiter">}</span>, <a href='075channel.mu.html#L379'>capacity</a>
+<span id="L60" class="LineNr"> 60 </span>  data:&amp;:@:<a href='070table.mu.html#L50'>table-row</a>:_key:_value <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(table-row _key _value): type<span class="Delimiter">}</span>, <a href='075channel.mu.html#L379'>capacity</a>
 <span id="L61" class="LineNr"> 61 </span>  *result <span class="Special">&lt;-</span> merge <span class="Constant">0/length</span>, <a href='075channel.mu.html#L379'>capacity</a>, data
 <span id="L62" class="LineNr"> 62 </span>]
 <span id="L63" class="LineNr"> 63 </span>
 <span id="L64" class="LineNr"> 64 </span><span class="Comment"># todo: tag results as /required so that call-sites are forbidden from ignoring them</span>
 <span id="L65" class="LineNr"> 65 </span><span class="Comment"># then we could handle conflicts simply by resizing the table</span>
-<span id="L66" class="LineNr"> 66 </span><span class="muRecipe">def</span> put-index table:&amp;:table:_key:_value, key:_key, value:_value<span class="muRecipe"> -&gt; </span>table:&amp;:table:_key:_value [
+<span id="L66" class="LineNr"> 66 </span><span class="muRecipe">def</span> put-index <a href='070table.mu.html#L44'>table</a>:&amp;:<a href='070table.mu.html#L44'>table</a>:_key:_value, key:_key, value:_value<span class="muRecipe"> -&gt; </span><a href='070table.mu.html#L44'>table</a>:&amp;:<a href='070table.mu.html#L44'>table</a>:_key:_value [
 <span id="L67" class="LineNr"> 67 </span>  <span class="Constant">local-scope</span>
 <span id="L68" class="LineNr"> 68 </span>  <span class="Constant">load-ingredients</span>
 <span id="L69" class="LineNr"> 69 </span>  hash:num <span class="Special">&lt;-</span> hash key
@@ -133,16 +133,16 @@ if ('onhashchange' in window) {
 <span id="L71" class="LineNr"> 71 </span>  <a href='075channel.mu.html#L379'>capacity</a>:num <span class="Special">&lt;-</span> get *table, <span class="Constant"><a href='075channel.mu.html#L379'>capacity</a>:offset</span>
 <span id="L72" class="LineNr"> 72 </span>  _, hash-key:num <span class="Special">&lt;-</span> divide-with-remainder hash, <a href='075channel.mu.html#L379'>capacity</a>
 <span id="L73" class="LineNr"> 73 </span>  hash-key <span class="Special">&lt;-</span> <a href='070table.mu.html#L103'>abs</a> hash-key  <span class="Comment"># in case hash overflows from a double into a negative integer inside 'divide-with-remainder' above</span>
-<span id="L74" class="LineNr"> 74 </span>  table-data:&amp;:@:table-row:_key:_value <span class="Special">&lt;-</span> get *table, <span class="Constant">data:offset</span>
-<span id="L75" class="LineNr"> 75 </span>  x:table-row:_key:_value <span class="Special">&lt;-</span> index *table-data, hash-key
+<span id="L74" class="LineNr"> 74 </span>  table-data:&amp;:@:<a href='070table.mu.html#L50'>table-row</a>:_key:_value <span class="Special">&lt;-</span> get *table, <span class="Constant">data:offset</span>
+<span id="L75" class="LineNr"> 75 </span>  x:<a href='070table.mu.html#L50'>table-row</a>:_key:_value <span class="Special">&lt;-</span> index *table-data, hash-key
 <span id="L76" class="LineNr"> 76 </span>  occupied?:bool <span class="Special">&lt;-</span> get x, <span class="Constant">occupied?:offset</span>
 <span id="L77" class="LineNr"> 77 </span>  not-occupied?:bool <span class="Special">&lt;-</span> not occupied?:bool
 <span id="L78" class="LineNr"> 78 </span>  assert not-occupied?, <span class="Constant">[can't handle collisions yet]</span>
-<span id="L79" class="LineNr"> 79 </span>  new-row:table-row:_key:_value <span class="Special">&lt;-</span> merge <span class="Constant">1/true</span>, key, value
+<span id="L79" class="LineNr"> 79 </span>  new-row:<a href='070table.mu.html#L50'>table-row</a>:_key:_value <span class="Special">&lt;-</span> merge <span class="Constant">1/true</span>, key, value
 <span id="L80" class="LineNr"> 80 </span>  *table-data <span class="Special">&lt;-</span> put-index *table-data, hash-key, new-row
 <span id="L81" class="LineNr"> 81 </span>]
 <span id="L82" class="LineNr"> 82 </span>
-<span id="L83" class="LineNr"> 83 </span><span class="muRecipe">def</span> index table:&amp;:table:_key:_value, key:_key<span class="muRecipe"> -&gt; </span>result:_value, found?:bool [
+<span id="L83" class="LineNr"> 83 </span><span class="muRecipe">def</span> index <a href='070table.mu.html#L44'>table</a>:&amp;:<a href='070table.mu.html#L44'>table</a>:_key:_value, key:_key<span class="muRecipe"> -&gt; </span>result:_value, found?:bool [
 <span id="L84" class="LineNr"> 84 </span>  <span class="Constant">local-scope</span>
 <span id="L85" class="LineNr"> 85 </span>  <span class="Constant">load-ingredients</span>
 <span id="L86" class="LineNr"> 86 </span>  hash:num <span class="Special">&lt;-</span> hash key
@@ -150,8 +150,8 @@ if ('onhashchange' in window) {
 <span id="L88" class="LineNr"> 88 </span>  <a href='075channel.mu.html#L379'>capacity</a>:num <span class="Special">&lt;-</span> get *table, <span class="Constant"><a href='075channel.mu.html#L379'>capacity</a>:offset</span>
 <span id="L89" class="LineNr"> 89 </span>  _, hash-key:num <span class="Special">&lt;-</span> divide-with-remainder hash, <a href='075channel.mu.html#L379'>capacity</a>
 <span id="L90" class="LineNr"> 90 </span>  hash-key <span class="Special">&lt;-</span> <a href='070table.mu.html#L103'>abs</a> hash-key  <span class="Comment"># in case hash overflows from a double into a negative integer inside 'divide-with-remainder' above</span>
-<span id="L91" class="LineNr"> 91 </span>  table-data:&amp;:@:table-row:_key:_value <span class="Special">&lt;-</span> get *table, <span class="Constant">data:offset</span>
-<span id="L92" class="LineNr"> 92 </span>  x:table-row:_key:_value <span class="Special">&lt;-</span> index *table-data, hash-key
+<span id="L91" class="LineNr"> 91 </span>  table-data:&amp;:@:<a href='070table.mu.html#L50'>table-row</a>:_key:_value <span class="Special">&lt;-</span> get *table, <span class="Constant">data:offset</span>
+<span id="L92" class="LineNr"> 92 </span>  x:<a href='070table.mu.html#L50'>table-row</a>:_key:_value <span class="Special">&lt;-</span> index *table-data, hash-key
 <span id="L93" class="LineNr"> 93 </span>  empty:&amp;:_value <span class="Special">&lt;-</span> new <span class="Constant">_value:type</span>
 <span id="L94" class="LineNr"> 94 </span>  result <span class="Special">&lt;-</span> copy *empty
 <span id="L95" class="LineNr"> 95 </span>  found?:bool <span class="Special">&lt;-</span> get x, <span class="Constant">occupied?:offset</span>
diff --git a/html/075channel.mu.html b/html/075channel.mu.html
index 46c82b68..a5c50400 100644
--- a/html/075channel.mu.html
+++ b/html/075channel.mu.html
@@ -81,9 +81,9 @@ if ('onhashchange' in window) {
 <span id="L17" class="LineNr"> 17 </span><span class="muScenario">scenario</span> channel [
 <span id="L18" class="LineNr"> 18 </span>  run [
 <span id="L19" class="LineNr"> 19 </span>  <span class="Conceal">¦</span> <span class="Constant">local-scope</span>
-<span id="L20" class="LineNr"> 20 </span>  <span class="Conceal">¦</span> source:&amp;:source:num, sink:&amp;:sink:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
-<span id="L21" class="LineNr"> 21 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 34</span>
-<span id="L22" class="LineNr"> 22 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span>, 11:bool/<span class="Special">raw</span>, source <span class="Special">&lt;-</span> read source
+<span id="L20" class="LineNr"> 20 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:num, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
+<span id="L21" class="LineNr"> 21 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>,<span class="Constant"> 34</span>
+<span id="L22" class="LineNr"> 22 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span>, 11:bool/<span class="Special">raw</span>, <a href='075channel.mu.html#L43'>source</a> <span class="Special">&lt;-</span> read <a href='075channel.mu.html#L43'>source</a>
 <span id="L23" class="LineNr"> 23 </span>  ]
 <span id="L24" class="LineNr"> 24 </span>  memory-should-contain [
 <span id="L25" class="LineNr"> 25 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 34</span>
@@ -104,15 +104,15 @@ if ('onhashchange' in window) {
 <span id="L40" class="LineNr"> 40 </span><span class="Comment"># Since channels have two ends, and since it's an error to use either end from</span>
 <span id="L41" class="LineNr"> 41 </span><span class="Comment"># multiple routines, let's distinguish the ends.</span>
 <span id="L42" class="LineNr"> 42 </span>
-<span id="L43" class="LineNr"> 43 </span><span class="muData">container</span> source:_elem [
+<span id="L43" class="LineNr"> 43 </span><span class="muData">container</span> <a href='075channel.mu.html#L43'>source</a>:_elem [
 <span id="L44" class="LineNr"> 44 </span>  chan:&amp;:channel:_elem
 <span id="L45" class="LineNr"> 45 </span>]
 <span id="L46" class="LineNr"> 46 </span>
-<span id="L47" class="LineNr"> 47 </span><span class="muData">container</span> sink:_elem [
+<span id="L47" class="LineNr"> 47 </span><span class="muData">container</span> <a href='075channel.mu.html#L47'>sink</a>:_elem [
 <span id="L48" class="LineNr"> 48 </span>  chan:&amp;:channel:_elem
 <span id="L49" class="LineNr"> 49 </span>]
 <span id="L50" class="LineNr"> 50 </span>
-<span id="L51" class="LineNr"> 51 </span><span class="muRecipe">def</span> <a href='075channel.mu.html#L51'>new-channel</a> <a href='075channel.mu.html#L379'>capacity</a>:num<span class="muRecipe"> -&gt; </span>in:&amp;:source:_elem, out:&amp;:sink:_elem [
+<span id="L51" class="LineNr"> 51 </span><span class="muRecipe">def</span> <a href='075channel.mu.html#L51'>new-channel</a> <a href='075channel.mu.html#L379'>capacity</a>:num<span class="muRecipe"> -&gt; </span>in:&amp;:<a href='075channel.mu.html#L43'>source</a>:_elem, out:&amp;:<a href='075channel.mu.html#L47'>sink</a>:_elem [
 <span id="L52" class="LineNr"> 52 </span>  <span class="Constant">local-scope</span>
 <span id="L53" class="LineNr"> 53 </span>  <span class="Constant">load-ingredients</span>
 <span id="L54" class="LineNr"> 54 </span>  result:&amp;:channel:_elem <span class="Special">&lt;-</span> new <span class="Delimiter">{</span>(channel _elem): type<span class="Delimiter">}</span>
@@ -127,7 +127,7 @@ if ('onhashchange' in window) {
 <span id="L63" class="LineNr"> 63 </span>  *out <span class="Special">&lt;-</span> put *out, <span class="Constant">chan:offset</span>, result
 <span id="L64" class="LineNr"> 64 </span>]
 <span id="L65" class="LineNr"> 65 </span>
-<span id="L66" class="LineNr"> 66 </span><span class="muRecipe">def</span> <a href='075channel.mu.html#L66'>write</a> out:&amp;:sink:_elem, val:_elem<span class="muRecipe"> -&gt; </span>out:&amp;:sink:_elem [
+<span id="L66" class="LineNr"> 66 </span><span class="muRecipe">def</span> <a href='075channel.mu.html#L66'>write</a> out:&amp;:<a href='075channel.mu.html#L47'>sink</a>:_elem, val:_elem<span class="muRecipe"> -&gt; </span>out:&amp;:<a href='075channel.mu.html#L47'>sink</a>:_elem [
 <span id="L67" class="LineNr"> 67 </span>  <span class="Constant">local-scope</span>
 <span id="L68" class="LineNr"> 68 </span>  <span class="Constant">load-ingredients</span>
 <span id="L69" class="LineNr"> 69 </span>  assert out, <span class="Constant">[write to null channel]</span>
@@ -172,7 +172,7 @@ if ('onhashchange' in window) {
 <span id="L108" class="LineNr">108 </span>  reset lock
 <span id="L109" class="LineNr">109 </span>]
 <span id="L110" class="LineNr">110 </span>
-<span id="L111" class="LineNr">111 </span><span class="muRecipe">def</span> read in:&amp;:source:_elem<span class="muRecipe"> -&gt; </span>result:_elem, eof?:bool, in:&amp;:source:_elem [
+<span id="L111" class="LineNr">111 </span><span class="muRecipe">def</span> read in:&amp;:<a href='075channel.mu.html#L43'>source</a>:_elem<span class="muRecipe"> -&gt; </span>result:_elem, eof?:bool, in:&amp;:<a href='075channel.mu.html#L43'>source</a>:_elem [
 <span id="L112" class="LineNr">112 </span>  <span class="Constant">local-scope</span>
 <span id="L113" class="LineNr">113 </span>  <span class="Constant">load-ingredients</span>
 <span id="L114" class="LineNr">114 </span>  assert in, <span class="Constant">[read on null channel]</span>
@@ -222,7 +222,7 @@ if ('onhashchange' in window) {
 <span id="L158" class="LineNr">158 </span><span class="Comment"># todo: create a notion of iterator and iterable so we can read/write whole</span>
 <span id="L159" class="LineNr">159 </span><span class="Comment"># aggregates (arrays, lists, ..) of _elems at once.</span>
 <span id="L160" class="LineNr">160 </span>
-<span id="L161" class="LineNr">161 </span><span class="muRecipe">def</span> <a href='075channel.mu.html#L161'>clear</a> in:&amp;:source:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:source:_elem [
+<span id="L161" class="LineNr">161 </span><span class="muRecipe">def</span> <a href='075channel.mu.html#L161'>clear</a> in:&amp;:<a href='075channel.mu.html#L43'>source</a>:_elem<span class="muRecipe"> -&gt; </span>in:&amp;:<a href='075channel.mu.html#L43'>source</a>:_elem [
 <span id="L162" class="LineNr">162 </span>  <span class="Constant">local-scope</span>
 <span id="L163" class="LineNr">163 </span>  <span class="Constant">load-ingredients</span>
 <span id="L164" class="LineNr">164 </span>  chan:&amp;:channel:_elem <span class="Special">&lt;-</span> get *in, <span class="Constant">chan:offset</span>
@@ -236,7 +236,7 @@ if ('onhashchange' in window) {
 <span id="L172" class="LineNr">172 </span><span class="muScenario">scenario</span> channel-initialization [
 <span id="L173" class="LineNr">173 </span>  run [
 <span id="L174" class="LineNr">174 </span>  <span class="Conceal">¦</span> <span class="Constant">local-scope</span>
-<span id="L175" class="LineNr">175 </span>  <span class="Conceal">¦</span> source:&amp;:source:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
+<span id="L175" class="LineNr">175 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
 <span id="L176" class="LineNr">176 </span>  <span class="Conceal">¦</span> chan:&amp;:channel:num <span class="Special">&lt;-</span> get *source, <span class="Constant">chan:offset</span>
 <span id="L177" class="LineNr">177 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-full:offset</span>
 <span id="L178" class="LineNr">178 </span>  <span class="Conceal">¦</span> 11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-free:offset</span>
@@ -249,9 +249,9 @@ if ('onhashchange' in window) {
 <span id="L185" class="LineNr">185 </span>
 <span id="L186" class="LineNr">186 </span><span class="muScenario">scenario</span> channel-write-increments-free [
 <span id="L187" class="LineNr">187 </span>  <span class="Constant">local-scope</span>
-<span id="L188" class="LineNr">188 </span>  _, sink:&amp;:sink:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
+<span id="L188" class="LineNr">188 </span>  _, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
 <span id="L189" class="LineNr">189 </span>  run [
-<span id="L190" class="LineNr">190 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 34</span>
+<span id="L190" class="LineNr">190 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>,<span class="Constant"> 34</span>
 <span id="L191" class="LineNr">191 </span>  <span class="Conceal">¦</span> chan:&amp;:channel:num <span class="Special">&lt;-</span> get *sink, <span class="Constant">chan:offset</span>
 <span id="L192" class="LineNr">192 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-full:offset</span>
 <span id="L193" class="LineNr">193 </span>  <span class="Conceal">¦</span> 11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-free:offset</span>
@@ -264,10 +264,10 @@ if ('onhashchange' in window) {
 <span id="L200" class="LineNr">200 </span>
 <span id="L201" class="LineNr">201 </span><span class="muScenario">scenario</span> channel-read-increments-full [
 <span id="L202" class="LineNr">202 </span>  <span class="Constant">local-scope</span>
-<span id="L203" class="LineNr">203 </span>  source:&amp;:source:num, sink:&amp;:sink:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
-<span id="L204" class="LineNr">204 </span>  sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 34</span>
+<span id="L203" class="LineNr">203 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:num, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
+<span id="L204" class="LineNr">204 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>,<span class="Constant"> 34</span>
 <span id="L205" class="LineNr">205 </span>  run [
-<span id="L206" class="LineNr">206 </span>  <span class="Conceal">¦</span> _, _, source <span class="Special">&lt;-</span> read source
+<span id="L206" class="LineNr">206 </span>  <span class="Conceal">¦</span> _, _, <a href='075channel.mu.html#L43'>source</a> <span class="Special">&lt;-</span> read <a href='075channel.mu.html#L43'>source</a>
 <span id="L207" class="LineNr">207 </span>  <span class="Conceal">¦</span> chan:&amp;:channel:num <span class="Special">&lt;-</span> get *source, <span class="Constant">chan:offset</span>
 <span id="L208" class="LineNr">208 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-full:offset</span>
 <span id="L209" class="LineNr">209 </span>  <span class="Conceal">¦</span> 11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-free:offset</span>
@@ -281,20 +281,20 @@ if ('onhashchange' in window) {
 <span id="L217" class="LineNr">217 </span><span class="muScenario">scenario</span> channel-wrap [
 <span id="L218" class="LineNr">218 </span>  <span class="Constant">local-scope</span>
 <span id="L219" class="LineNr">219 </span>  <span class="Comment"># channel with just 1 slot</span>
-<span id="L220" class="LineNr">220 </span>  source:&amp;:source:num, sink:&amp;:sink:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">1/capacity</span>
+<span id="L220" class="LineNr">220 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:num, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">1/capacity</span>
 <span id="L221" class="LineNr">221 </span>  chan:&amp;:channel:num <span class="Special">&lt;-</span> get *source, <span class="Constant">chan:offset</span>
 <span id="L222" class="LineNr">222 </span>  <span class="Comment"># write and read a value</span>
-<span id="L223" class="LineNr">223 </span>  sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 34</span>
-<span id="L224" class="LineNr">224 </span>  _, _, source <span class="Special">&lt;-</span> read source
+<span id="L223" class="LineNr">223 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>,<span class="Constant"> 34</span>
+<span id="L224" class="LineNr">224 </span>  _, _, <a href='075channel.mu.html#L43'>source</a> <span class="Special">&lt;-</span> read <a href='075channel.mu.html#L43'>source</a>
 <span id="L225" class="LineNr">225 </span>  run [
 <span id="L226" class="LineNr">226 </span>  <span class="Conceal">¦</span> <span class="Comment"># first-free will now be 1</span>
 <span id="L227" class="LineNr">227 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-free:offset</span>
 <span id="L228" class="LineNr">228 </span>  <span class="Conceal">¦</span> 11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-free:offset</span>
 <span id="L229" class="LineNr">229 </span>  <span class="Conceal">¦</span> <span class="Comment"># write second value, verify that first-free wraps</span>
-<span id="L230" class="LineNr">230 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 34</span>
+<span id="L230" class="LineNr">230 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>,<span class="Constant"> 34</span>
 <span id="L231" class="LineNr">231 </span>  <span class="Conceal">¦</span> 20:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-free:offset</span>
 <span id="L232" class="LineNr">232 </span>  <span class="Conceal">¦</span> <span class="Comment"># read second value, verify that first-full wraps</span>
-<span id="L233" class="LineNr">233 </span>  <span class="Conceal">¦</span> _, _, source <span class="Special">&lt;-</span> read source
+<span id="L233" class="LineNr">233 </span>  <span class="Conceal">¦</span> _, _, <a href='075channel.mu.html#L43'>source</a> <span class="Special">&lt;-</span> read <a href='075channel.mu.html#L43'>source</a>
 <span id="L234" class="LineNr">234 </span>  <span class="Conceal">¦</span> 30:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-full:offset</span>
 <span id="L235" class="LineNr">235 </span>  ]
 <span id="L236" class="LineNr">236 </span>  memory-should-contain [
@@ -308,7 +308,7 @@ if ('onhashchange' in window) {
 <span id="L244" class="LineNr">244 </span><span class="muScenario">scenario</span> channel-new-empty-not-full [
 <span id="L245" class="LineNr">245 </span>  run [
 <span id="L246" class="LineNr">246 </span>  <span class="Conceal">¦</span> <span class="Constant">local-scope</span>
-<span id="L247" class="LineNr">247 </span>  <span class="Conceal">¦</span> source:&amp;:source:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
+<span id="L247" class="LineNr">247 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
 <span id="L248" class="LineNr">248 </span>  <span class="Conceal">¦</span> chan:&amp;:channel:num <span class="Special">&lt;-</span> get *source, <span class="Constant">chan:offset</span>
 <span id="L249" class="LineNr">249 </span>  <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> chan
 <span id="L250" class="LineNr">250 </span>  <span class="Conceal">¦</span> 11:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L361'>channel-full?</a> chan
@@ -321,10 +321,10 @@ if ('onhashchange' in window) {
 <span id="L257" class="LineNr">257 </span>
 <span id="L258" class="LineNr">258 </span><span class="muScenario">scenario</span> channel-write-not-empty [
 <span id="L259" class="LineNr">259 </span>  <span class="Constant">local-scope</span>
-<span id="L260" class="LineNr">260 </span>  source:&amp;:source:num, sink:&amp;:sink:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
+<span id="L260" class="LineNr">260 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:num, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
 <span id="L261" class="LineNr">261 </span>  chan:&amp;:channel:num <span class="Special">&lt;-</span> get *source, <span class="Constant">chan:offset</span>
 <span id="L262" class="LineNr">262 </span>  run [
-<span id="L263" class="LineNr">263 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 34</span>
+<span id="L263" class="LineNr">263 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>,<span class="Constant"> 34</span>
 <span id="L264" class="LineNr">264 </span>  <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> chan
 <span id="L265" class="LineNr">265 </span>  <span class="Conceal">¦</span> 11:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L361'>channel-full?</a> chan
 <span id="L266" class="LineNr">266 </span>  ]
@@ -336,10 +336,10 @@ if ('onhashchange' in window) {
 <span id="L272" class="LineNr">272 </span>
 <span id="L273" class="LineNr">273 </span><span class="muScenario">scenario</span> channel-write-full [
 <span id="L274" class="LineNr">274 </span>  <span class="Constant">local-scope</span>
-<span id="L275" class="LineNr">275 </span>  source:&amp;:source:num, sink:&amp;:sink:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">1/capacity</span>
+<span id="L275" class="LineNr">275 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:num, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">1/capacity</span>
 <span id="L276" class="LineNr">276 </span>  chan:&amp;:channel:num <span class="Special">&lt;-</span> get *source, <span class="Constant">chan:offset</span>
 <span id="L277" class="LineNr">277 </span>  run [
-<span id="L278" class="LineNr">278 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 34</span>
+<span id="L278" class="LineNr">278 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>,<span class="Constant"> 34</span>
 <span id="L279" class="LineNr">279 </span>  <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> chan
 <span id="L280" class="LineNr">280 </span>  <span class="Conceal">¦</span> 11:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L361'>channel-full?</a> chan
 <span id="L281" class="LineNr">281 </span>  ]
@@ -351,11 +351,11 @@ if ('onhashchange' in window) {
 <span id="L287" class="LineNr">287 </span>
 <span id="L288" class="LineNr">288 </span><span class="muScenario">scenario</span> channel-read-not-full [
 <span id="L289" class="LineNr">289 </span>  <span class="Constant">local-scope</span>
-<span id="L290" class="LineNr">290 </span>  source:&amp;:source:num, sink:&amp;:sink:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">1/capacity</span>
+<span id="L290" class="LineNr">290 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:num, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">1/capacity</span>
 <span id="L291" class="LineNr">291 </span>  chan:&amp;:channel:num <span class="Special">&lt;-</span> get *source, <span class="Constant">chan:offset</span>
-<span id="L292" class="LineNr">292 </span>  sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 34</span>
+<span id="L292" class="LineNr">292 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>,<span class="Constant"> 34</span>
 <span id="L293" class="LineNr">293 </span>  run [
-<span id="L294" class="LineNr">294 </span>  <span class="Conceal">¦</span> _, _, source <span class="Special">&lt;-</span> read source
+<span id="L294" class="LineNr">294 </span>  <span class="Conceal">¦</span> _, _, <a href='075channel.mu.html#L43'>source</a> <span class="Special">&lt;-</span> read <a href='075channel.mu.html#L43'>source</a>
 <span id="L295" class="LineNr">295 </span>  <span class="Conceal">¦</span> 10:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> chan
 <span id="L296" class="LineNr">296 </span>  <span class="Conceal">¦</span> 11:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L361'>channel-full?</a> chan
 <span id="L297" class="LineNr">297 </span>  ]
@@ -375,13 +375,13 @@ if ('onhashchange' in window) {
 <span id="L311" class="LineNr">311 </span>
 <span id="L312" class="LineNr">312 </span><span class="Comment"># a channel can be closed from either the source or the sink</span>
 <span id="L313" class="LineNr">313 </span><span class="Comment"># both routines can modify the 'closed?' bit, but they can only ever set it, so this is a benign race</span>
-<span id="L314" class="LineNr">314 </span><span class="muRecipe">def</span> close x:&amp;:source:_elem<span class="muRecipe"> -&gt; </span>x:&amp;:source:_elem [
+<span id="L314" class="LineNr">314 </span><span class="muRecipe">def</span> close x:&amp;:<a href='075channel.mu.html#L43'>source</a>:_elem<span class="muRecipe"> -&gt; </span>x:&amp;:<a href='075channel.mu.html#L43'>source</a>:_elem [
 <span id="L315" class="LineNr">315 </span>  <span class="Constant">local-scope</span>
 <span id="L316" class="LineNr">316 </span>  <span class="Constant">load-ingredients</span>
 <span id="L317" class="LineNr">317 </span>  chan:&amp;:channel:_elem <span class="Special">&lt;-</span> get *x, <span class="Constant">chan:offset</span>
 <span id="L318" class="LineNr">318 </span>  *chan <span class="Special">&lt;-</span> put *chan, <span class="Constant">closed?:offset</span>, <span class="Constant">1/true</span>
 <span id="L319" class="LineNr">319 </span>]
-<span id="L320" class="LineNr">320 </span><span class="muRecipe">def</span> close x:&amp;:sink:_elem<span class="muRecipe"> -&gt; </span>x:&amp;:sink:_elem [
+<span id="L320" class="LineNr">320 </span><span class="muRecipe">def</span> close x:&amp;:<a href='075channel.mu.html#L47'>sink</a>:_elem<span class="muRecipe"> -&gt; </span>x:&amp;:<a href='075channel.mu.html#L47'>sink</a>:_elem [
 <span id="L321" class="LineNr">321 </span>  <span class="Constant">local-scope</span>
 <span id="L322" class="LineNr">322 </span>  <span class="Constant">load-ingredients</span>
 <span id="L323" class="LineNr">323 </span>  chan:&amp;:channel:_elem <span class="Special">&lt;-</span> get *x, <span class="Constant">chan:offset</span>
@@ -449,13 +449,13 @@ if ('onhashchange' in window) {
 <span id="L385" class="LineNr">385 </span>
 <span id="L386" class="LineNr">386 </span><span class="SalientComment">## helpers for channels of characters in particular</span>
 <span id="L387" class="LineNr">387 </span>
-<span id="L388" class="LineNr">388 </span><span class="muRecipe">def</span> <a href='075channel.mu.html#L388'>buffer-lines</a> in:&amp;:source:char, buffered-out:&amp;:sink:char<span class="muRecipe"> -&gt; </span>buffered-out:&amp;:sink:char, in:&amp;:source:char [
+<span id="L388" class="LineNr">388 </span><span class="muRecipe">def</span> <a href='075channel.mu.html#L388'>buffer-lines</a> in:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, buffered-out:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char<span class="muRecipe"> -&gt; </span>buffered-out:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char, in:&amp;:<a href='075channel.mu.html#L43'>source</a>:char [
 <span id="L389" class="LineNr">389 </span>  <span class="Constant">local-scope</span>
 <span id="L390" class="LineNr">390 </span>  <span class="Constant">load-ingredients</span>
 <span id="L391" class="LineNr">391 </span>  <span class="Comment"># repeat forever</span>
 <span id="L392" class="LineNr">392 </span>  eof?:bool <span class="Special">&lt;-</span> copy <span class="Constant">0/false</span>
 <span id="L393" class="LineNr">393 </span>  <span class="Delimiter">{</span>
-<span id="L394" class="LineNr">394 </span>  <span class="Conceal">¦</span> line:&amp;:buffer:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
+<span id="L394" class="LineNr">394 </span>  <span class="Conceal">¦</span> line:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
 <span id="L395" class="LineNr">395 </span>  <span class="Conceal">¦</span> <span class="Comment"># read characters from 'in' until newline, copy into line</span>
 <span id="L396" class="LineNr">396 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
 <span id="L397" class="LineNr">397 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> </span><span class="Conceal">¦</span><span class="Constant"> +next-character</span>
@@ -507,34 +507,34 @@ if ('onhashchange' in window) {
 <span id="L443" class="LineNr">443 </span><span class="muScenario">scenario</span> buffer-lines-blocks-until-newline [
 <span id="L444" class="LineNr">444 </span>  run [
 <span id="L445" class="LineNr">445 </span>  <span class="Conceal">¦</span> <span class="Constant">local-scope</span>
-<span id="L446" class="LineNr">446 </span>  <span class="Conceal">¦</span> source:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">10/capacity</span>
-<span id="L447" class="LineNr">447 </span>  <span class="Conceal">¦</span> _, buffered-stdin:&amp;:sink:char/buffered-stdin <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">10/capacity</span>
+<span id="L446" class="LineNr">446 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">10/capacity</span>
+<span id="L447" class="LineNr">447 </span>  <span class="Conceal">¦</span> _, buffered-stdin:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char/buffered-stdin <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">10/capacity</span>
 <span id="L448" class="LineNr">448 </span>  <span class="Conceal">¦</span> buffered-chan:&amp;:channel:char <span class="Special">&lt;-</span> get *buffered-stdin, <span class="Constant">chan:offset</span>
 <span id="L449" class="LineNr">449 </span>  <span class="Conceal">¦</span> empty?:bool <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> buffered-chan
 <span id="L450" class="LineNr">450 </span>  <span class="Conceal">¦</span> assert empty?, <span class="Constant">[ </span>
 <span id="L451" class="LineNr">451 </span><span class="Constant">F buffer-lines-blocks-until-newline: channel should be empty after init]</span>
 <span id="L452" class="LineNr">452 </span>  <span class="Conceal">¦</span> <span class="Comment"># buffer stdin into buffered-stdin, try to read from buffered-stdin</span>
-<span id="L453" class="LineNr">453 </span>  <span class="Conceal">¦</span> buffer-routine:num <span class="Special">&lt;-</span> start-running <a href='075channel.mu.html#L388'>buffer-lines</a>, source, buffered-stdin
+<span id="L453" class="LineNr">453 </span>  <span class="Conceal">¦</span> buffer-routine:num <span class="Special">&lt;-</span> start-running <a href='075channel.mu.html#L388'>buffer-lines</a>, <a href='075channel.mu.html#L43'>source</a>, buffered-stdin
 <span id="L454" class="LineNr">454 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block buffer-routine
 <span id="L455" class="LineNr">455 </span>  <span class="Conceal">¦</span> empty? <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> buffered-chan
 <span id="L456" class="LineNr">456 </span>  <span class="Conceal">¦</span> assert empty?:bool, <span class="Constant">[ </span>
 <span id="L457" class="LineNr">457 </span><span class="Constant">F buffer-lines-blocks-until-newline: channel should be empty after <a href='075channel.mu.html#L388'>buffer-lines</a> bring-up]</span>
 <span id="L458" class="LineNr">458 </span>  <span class="Conceal">¦</span> <span class="Comment"># write 'a'</span>
-<span id="L459" class="LineNr">459 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">97/a</span>
+<span id="L459" class="LineNr">459 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">97/a</span>
 <span id="L460" class="LineNr">460 </span>  <span class="Conceal">¦</span> restart buffer-routine
 <span id="L461" class="LineNr">461 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block buffer-routine
 <span id="L462" class="LineNr">462 </span>  <span class="Conceal">¦</span> empty? <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> buffered-chan
 <span id="L463" class="LineNr">463 </span>  <span class="Conceal">¦</span> assert empty?:bool, <span class="Constant">[ </span>
 <span id="L464" class="LineNr">464 </span><span class="Constant">F buffer-lines-blocks-until-newline: channel should be empty after writing 'a']</span>
 <span id="L465" class="LineNr">465 </span>  <span class="Conceal">¦</span> <span class="Comment"># write 'b'</span>
-<span id="L466" class="LineNr">466 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">98/b</span>
+<span id="L466" class="LineNr">466 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">98/b</span>
 <span id="L467" class="LineNr">467 </span>  <span class="Conceal">¦</span> restart buffer-routine
 <span id="L468" class="LineNr">468 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block buffer-routine
 <span id="L469" class="LineNr">469 </span>  <span class="Conceal">¦</span> empty? <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> buffered-chan
 <span id="L470" class="LineNr">470 </span>  <span class="Conceal">¦</span> assert empty?:bool, <span class="Constant">[ </span>
 <span id="L471" class="LineNr">471 </span><span class="Constant">F buffer-lines-blocks-until-newline: channel should be empty after writing 'b']</span>
 <span id="L472" class="LineNr">472 </span>  <span class="Conceal">¦</span> <span class="Comment"># write newline</span>
-<span id="L473" class="LineNr">473 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">10/newline</span>
+<span id="L473" class="LineNr">473 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">10/newline</span>
 <span id="L474" class="LineNr">474 </span>  <span class="Conceal">¦</span> restart buffer-routine
 <span id="L475" class="LineNr">475 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block buffer-routine
 <span id="L476" class="LineNr">476 </span>  <span class="Conceal">¦</span> empty? <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> buffered-chan
@@ -548,12 +548,12 @@ if ('onhashchange' in window) {
 <span id="L484" class="LineNr">484 </span>  ]
 <span id="L485" class="LineNr">485 </span>]
 <span id="L486" class="LineNr">486 </span>
-<span id="L487" class="LineNr">487 </span><span class="muRecipe">def</span> <a href='075channel.mu.html#L487'>drain</a> source:&amp;:source:char<span class="muRecipe"> -&gt; </span>result:text, source:&amp;:source:char [
+<span id="L487" class="LineNr">487 </span><span class="muRecipe">def</span> <a href='075channel.mu.html#L487'>drain</a> <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char<span class="muRecipe"> -&gt; </span>result:text, <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char [
 <span id="L488" class="LineNr">488 </span>  <span class="Constant">local-scope</span>
 <span id="L489" class="LineNr">489 </span>  <span class="Constant">load-ingredients</span>
-<span id="L490" class="LineNr">490 </span>  buf:&amp;:buffer:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
+<span id="L490" class="LineNr">490 </span>  buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
 <span id="L491" class="LineNr">491 </span>  <span class="Delimiter">{</span>
-<span id="L492" class="LineNr">492 </span>  <span class="Conceal">¦</span> c:char, done?:bool <span class="Special">&lt;-</span> read source
+<span id="L492" class="LineNr">492 </span>  <span class="Conceal">¦</span> c:char, done?:bool <span class="Special">&lt;-</span> read <a href='075channel.mu.html#L43'>source</a>
 <span id="L493" class="LineNr">493 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
 <span id="L494" class="LineNr">494 </span>  <span class="Conceal">¦</span> buf <span class="Special">&lt;-</span> append buf, c
 <span id="L495" class="LineNr">495 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
diff --git a/html/084console.mu.html b/html/084console.mu.html
index 49937f4c..16712057 100644
--- a/html/084console.mu.html
+++ b/html/084console.mu.html
@@ -131,7 +131,7 @@ if ('onhashchange' in window) {
 <span id="L70" class="LineNr"> 70 </span>  <span class="muControl">return</span> c, <span class="Constant">1/found</span>, <span class="Constant">0/quit</span>
 <span id="L71" class="LineNr"> 71 </span>]
 <span id="L72" class="LineNr"> 72 </span>
-<span id="L73" class="LineNr"> 73 </span><span class="muRecipe">def</span> <a href='084console.mu.html#L73'>send-keys-to-channel</a> <a href='084console.mu.html#L23'>console</a>:&amp;:<a href='084console.mu.html#L23'>console</a>, chan:&amp;:sink:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span><a href='084console.mu.html#L23'>console</a>:&amp;:<a href='084console.mu.html#L23'>console</a>, chan:&amp;:sink:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a> [
+<span id="L73" class="LineNr"> 73 </span><span class="muRecipe">def</span> <a href='084console.mu.html#L73'>send-keys-to-channel</a> <a href='084console.mu.html#L23'>console</a>:&amp;:<a href='084console.mu.html#L23'>console</a>, chan:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span><a href='084console.mu.html#L23'>console</a>:&amp;:<a href='084console.mu.html#L23'>console</a>, chan:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a> [
 <span id="L74" class="LineNr"> 74 </span>  <span class="Constant">local-scope</span>
 <span id="L75" class="LineNr"> 75 </span>  <span class="Constant">load-ingredients</span>
 <span id="L76" class="LineNr"> 76 </span>  <span class="Delimiter">{</span>
diff --git a/html/088file.mu.html b/html/088file.mu.html
index 794e9592..42c94671 100644
--- a/html/088file.mu.html
+++ b/html/088file.mu.html
@@ -79,7 +79,7 @@ if ('onhashchange' in window) {
 <span id="L18" class="LineNr"> 18 </span>  contents:text
 <span id="L19" class="LineNr"> 19 </span>]
 <span id="L20" class="LineNr"> 20 </span>
-<span id="L21" class="LineNr"> 21 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L21'>start-reading</a> <a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, filename:text<span class="muRecipe"> -&gt; </span>contents:&amp;:source:char, error?:bool [
+<span id="L21" class="LineNr"> 21 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L21'>start-reading</a> <a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, filename:text<span class="muRecipe"> -&gt; </span>contents:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, error?:bool [
 <span id="L22" class="LineNr"> 22 </span>  <span class="Constant">local-scope</span>
 <span id="L23" class="LineNr"> 23 </span>  <span class="Constant">load-ingredients</span>
 <span id="L24" class="LineNr"> 24 </span>  error? <span class="Special">&lt;-</span> copy <span class="Constant">0/false</span>
@@ -92,18 +92,18 @@ if ('onhashchange' in window) {
 <span id="L31" class="LineNr"> 31 </span>  <span class="Comment"># real file system</span>
 <span id="L32" class="LineNr"> 32 </span>  file:num <span class="Special">&lt;-</span> $open-file-for-reading filename
 <span id="L33" class="LineNr"> 33 </span>  <span class="muControl">return-unless</span> file, <span class="Constant">0/contents</span>, <span class="Constant">1/error?</span>
-<span id="L34" class="LineNr"> 34 </span>  contents:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
-<span id="L35" class="LineNr"> 35 </span>  start-running <a href='088file.mu.html#L76'>receive-from-file</a> file, sink
+<span id="L34" class="LineNr"> 34 </span>  contents:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
+<span id="L35" class="LineNr"> 35 </span>  start-running <a href='088file.mu.html#L76'>receive-from-file</a> file, <a href='075channel.mu.html#L47'>sink</a>
 <span id="L36" class="LineNr"> 36 </span>]
 <span id="L37" class="LineNr"> 37 </span>
 <span id="L38" class="LineNr"> 38 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L38'>slurp</a> <a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, filename:text<span class="muRecipe"> -&gt; </span>contents:text, error?:bool [
 <span id="L39" class="LineNr"> 39 </span>  <span class="Constant">local-scope</span>
 <span id="L40" class="LineNr"> 40 </span>  <span class="Constant">load-ingredients</span>
-<span id="L41" class="LineNr"> 41 </span>  source:&amp;:source:char, error?:bool <span class="Special">&lt;-</span> <a href='088file.mu.html#L21'>start-reading</a> <a href='088file.mu.html#L11'>resources</a>, filename
+<span id="L41" class="LineNr"> 41 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, error?:bool <span class="Special">&lt;-</span> <a href='088file.mu.html#L21'>start-reading</a> <a href='088file.mu.html#L11'>resources</a>, filename
 <span id="L42" class="LineNr"> 42 </span>  <span class="muControl">return-if</span> error?, <span class="Constant">0/contents</span>
-<span id="L43" class="LineNr"> 43 </span>  buf:&amp;:buffer:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a> <span class="Constant">30/capacity</span>
+<span id="L43" class="LineNr"> 43 </span>  buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a> <span class="Constant">30/capacity</span>
 <span id="L44" class="LineNr"> 44 </span>  <span class="Delimiter">{</span>
-<span id="L45" class="LineNr"> 45 </span>  <span class="Conceal">¦</span> c:char, done?:bool, source <span class="Special">&lt;-</span> read source
+<span id="L45" class="LineNr"> 45 </span>  <span class="Conceal">¦</span> c:char, done?:bool, <a href='075channel.mu.html#L43'>source</a> <span class="Special">&lt;-</span> read <a href='075channel.mu.html#L43'>source</a>
 <span id="L46" class="LineNr"> 46 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
 <span id="L47" class="LineNr"> 47 </span>  <span class="Conceal">¦</span> buf <span class="Special">&lt;-</span> append buf, c
 <span id="L48" class="LineNr"> 48 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
@@ -111,7 +111,7 @@ if ('onhashchange' in window) {
 <span id="L50" class="LineNr"> 50 </span>  contents <span class="Special">&lt;-</span> <a href='061text.mu.html#L328'>buffer-to-array</a> buf
 <span id="L51" class="LineNr"> 51 </span>]
 <span id="L52" class="LineNr"> 52 </span>
-<span id="L53" class="LineNr"> 53 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L53'>start-reading-from-fake-resource</a> <a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, <a href='088file.mu.html#L16'>resource</a>:text<span class="muRecipe"> -&gt; </span>contents:&amp;:source:char, error?:bool [
+<span id="L53" class="LineNr"> 53 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L53'>start-reading-from-fake-resource</a> <a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, <a href='088file.mu.html#L16'>resource</a>:text<span class="muRecipe"> -&gt; </span>contents:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, error?:bool [
 <span id="L54" class="LineNr"> 54 </span>  <span class="Constant">local-scope</span>
 <span id="L55" class="LineNr"> 55 </span>  <span class="Constant">load-ingredients</span>
 <span id="L56" class="LineNr"> 56 </span>  error? <span class="Special">&lt;-</span> copy <span class="Constant">0/no-error</span>
@@ -126,28 +126,28 @@ if ('onhashchange' in window) {
 <span id="L65" class="LineNr"> 65 </span>  <span class="Conceal">¦</span> curr-resource:text <span class="Special">&lt;-</span> get tmp, <span class="Constant">name:offset</span>
 <span id="L66" class="LineNr"> 66 </span>  <span class="Conceal">¦</span> found?:bool <span class="Special">&lt;-</span> equal <a href='088file.mu.html#L16'>resource</a>, curr-resource
 <span id="L67" class="LineNr"> 67 </span>  <span class="Conceal">¦</span> <span class="muControl">loop-unless</span> found?
-<span id="L68" class="LineNr"> 68 </span>  <span class="Conceal">¦</span> contents:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
+<span id="L68" class="LineNr"> 68 </span>  <span class="Conceal">¦</span> contents:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
 <span id="L69" class="LineNr"> 69 </span>  <span class="Conceal">¦</span> curr-contents:text <span class="Special">&lt;-</span> get tmp, <span class="Constant">contents:offset</span>
-<span id="L70" class="LineNr"> 70 </span>  <span class="Conceal">¦</span> start-running <a href='088file.mu.html#L89'>receive-from-text</a> curr-contents, sink
+<span id="L70" class="LineNr"> 70 </span>  <span class="Conceal">¦</span> start-running <a href='088file.mu.html#L89'>receive-from-text</a> curr-contents, <a href='075channel.mu.html#L47'>sink</a>
 <span id="L71" class="LineNr"> 71 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L72" class="LineNr"> 72 </span>  <span class="Delimiter">}</span>
 <span id="L73" class="LineNr"> 73 </span>  <span class="muControl">return</span> <span class="Constant">0/not-found</span>, <span class="Constant">1/error</span>
 <span id="L74" class="LineNr"> 74 </span>]
 <span id="L75" class="LineNr"> 75 </span>
-<span id="L76" class="LineNr"> 76 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L76'>receive-from-file</a> file:num, sink:&amp;:sink:char<span class="muRecipe"> -&gt; </span>sink:&amp;:sink:char [
+<span id="L76" class="LineNr"> 76 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L76'>receive-from-file</a> file:num, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char<span class="muRecipe"> -&gt; </span><a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char [
 <span id="L77" class="LineNr"> 77 </span>  <span class="Constant">local-scope</span>
 <span id="L78" class="LineNr"> 78 </span>  <span class="Constant">load-ingredients</span>
 <span id="L79" class="LineNr"> 79 </span>  <span class="Delimiter">{</span>
 <span id="L80" class="LineNr"> 80 </span>  <span class="Conceal">¦</span> c:char, eof?:bool <span class="Special">&lt;-</span> $read-from-file file
 <span id="L81" class="LineNr"> 81 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> eof?
-<span id="L82" class="LineNr"> 82 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, c
+<span id="L82" class="LineNr"> 82 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, c
 <span id="L83" class="LineNr"> 83 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L84" class="LineNr"> 84 </span>  <span class="Delimiter">}</span>
-<span id="L85" class="LineNr"> 85 </span>  sink <span class="Special">&lt;-</span> close sink
+<span id="L85" class="LineNr"> 85 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> close <a href='075channel.mu.html#L47'>sink</a>
 <span id="L86" class="LineNr"> 86 </span>  file <span class="Special">&lt;-</span> $close-file file
 <span id="L87" class="LineNr"> 87 </span>]
 <span id="L88" class="LineNr"> 88 </span>
-<span id="L89" class="LineNr"> 89 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L89'>receive-from-text</a> contents:text, sink:&amp;:sink:char<span class="muRecipe"> -&gt; </span>sink:&amp;:sink:char [
+<span id="L89" class="LineNr"> 89 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L89'>receive-from-text</a> contents:text, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char<span class="muRecipe"> -&gt; </span><a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char [
 <span id="L90" class="LineNr"> 90 </span>  <span class="Constant">local-scope</span>
 <span id="L91" class="LineNr"> 91 </span>  <span class="Constant">load-ingredients</span>
 <span id="L92" class="LineNr"> 92 </span>  i:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
@@ -156,22 +156,22 @@ if ('onhashchange' in window) {
 <span id="L95" class="LineNr"> 95 </span>  <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> greater-or-equal i, len
 <span id="L96" class="LineNr"> 96 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
 <span id="L97" class="LineNr"> 97 </span>  <span class="Conceal">¦</span> c:char <span class="Special">&lt;-</span> index *contents, i
-<span id="L98" class="LineNr"> 98 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, c
+<span id="L98" class="LineNr"> 98 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, c
 <span id="L99" class="LineNr"> 99 </span>  <span class="Conceal">¦</span> i <span class="Special">&lt;-</span> add i,<span class="Constant"> 1</span>
 <span id="L100" class="LineNr">100 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L101" class="LineNr">101 </span>  <span class="Delimiter">}</span>
-<span id="L102" class="LineNr">102 </span>  sink <span class="Special">&lt;-</span> close sink
+<span id="L102" class="LineNr">102 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> close <a href='075channel.mu.html#L47'>sink</a>
 <span id="L103" class="LineNr">103 </span>]
 <span id="L104" class="LineNr">104 </span>
-<span id="L105" class="LineNr">105 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, filename:text<span class="muRecipe"> -&gt; </span>sink:&amp;:sink:char, routine-id:num, error?:bool [
+<span id="L105" class="LineNr">105 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, filename:text<span class="muRecipe"> -&gt; </span><a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char, routine-id:num, error?:bool [
 <span id="L106" class="LineNr">106 </span>  <span class="Constant">local-scope</span>
 <span id="L107" class="LineNr">107 </span>  <span class="Constant">load-ingredients</span>
 <span id="L108" class="LineNr">108 </span>  error? <span class="Special">&lt;-</span> copy <span class="Constant">0/false</span>
-<span id="L109" class="LineNr">109 </span>  source:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
+<span id="L109" class="LineNr">109 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
 <span id="L110" class="LineNr">110 </span>  <span class="Delimiter">{</span>
 <span id="L111" class="LineNr">111 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='088file.mu.html#L11'>resources</a>
 <span id="L112" class="LineNr">112 </span>  <span class="Conceal">¦</span> <span class="Comment"># fake file system</span>
-<span id="L113" class="LineNr">113 </span>  <span class="Conceal">¦</span> routine-id <span class="Special">&lt;-</span> start-running <a href='088file.mu.html#L162'>transmit-to-fake-resource</a> <a href='088file.mu.html#L11'>resources</a>, filename, source
+<span id="L113" class="LineNr">113 </span>  <span class="Conceal">¦</span> routine-id <span class="Special">&lt;-</span> start-running <a href='088file.mu.html#L162'>transmit-to-fake-resource</a> <a href='088file.mu.html#L11'>resources</a>, filename, <a href='075channel.mu.html#L43'>source</a>
 <span id="L114" class="LineNr">114 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L115" class="LineNr">115 </span>  <span class="Delimiter">}</span>
 <span id="L116" class="LineNr">116 </span>  <span class="Comment"># real file system</span>
@@ -182,7 +182,7 @@ if ('onhashchange' in window) {
 <span id="L121" class="LineNr">121 </span>  <span class="Conceal">¦</span> msg:text <span class="Special">&lt;-</span> append <span class="Constant">[no such file: ]</span> filename
 <span id="L122" class="LineNr">122 </span>  <span class="Conceal">¦</span> assert file, msg
 <span id="L123" class="LineNr">123 </span>  <span class="Delimiter">}</span>
-<span id="L124" class="LineNr">124 </span>  routine-id <span class="Special">&lt;-</span> start-running <a href='088file.mu.html#L150'>transmit-to-file</a> file, source
+<span id="L124" class="LineNr">124 </span>  routine-id <span class="Special">&lt;-</span> start-running <a href='088file.mu.html#L150'>transmit-to-file</a> file, <a href='075channel.mu.html#L43'>source</a>
 <span id="L125" class="LineNr">125 </span>]
 <span id="L126" class="LineNr">126 </span>
 <span id="L127" class="LineNr">127 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L127'>dump</a> <a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, filename:text, contents:text<span class="muRecipe"> -&gt; </span><a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, error?:bool [
@@ -190,7 +190,7 @@ if ('onhashchange' in window) {
 <span id="L129" class="LineNr">129 </span>  <span class="Constant">load-ingredients</span>
 <span id="L130" class="LineNr">130 </span>  <span class="Comment"># todo: really create an empty file</span>
 <span id="L131" class="LineNr">131 </span>  <span class="muControl">return-unless</span> contents, <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">0/no-error</span>
-<span id="L132" class="LineNr">132 </span>  sink-file:&amp;:sink:char, write-routine:num, error?:bool <span class="Special">&lt;-</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>, filename
+<span id="L132" class="LineNr">132 </span>  sink-file:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char, write-routine:num, error?:bool <span class="Special">&lt;-</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>, filename
 <span id="L133" class="LineNr">133 </span>  <span class="muControl">return-if</span> error?
 <span id="L134" class="LineNr">134 </span>  i:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
 <span id="L135" class="LineNr">135 </span>  len:num <span class="Special">&lt;-</span> length *contents
@@ -208,11 +208,11 @@ if ('onhashchange' in window) {
 <span id="L147" class="LineNr">147 </span>  wait-for-routine write-routine
 <span id="L148" class="LineNr">148 </span>]
 <span id="L149" class="LineNr">149 </span>
-<span id="L150" class="LineNr">150 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L150'>transmit-to-file</a> file:num, source:&amp;:source:char<span class="muRecipe"> -&gt; </span>source:&amp;:source:char [
+<span id="L150" class="LineNr">150 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L150'>transmit-to-file</a> file:num, <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char<span class="muRecipe"> -&gt; </span><a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char [
 <span id="L151" class="LineNr">151 </span>  <span class="Constant">local-scope</span>
 <span id="L152" class="LineNr">152 </span>  <span class="Constant">load-ingredients</span>
 <span id="L153" class="LineNr">153 </span>  <span class="Delimiter">{</span>
-<span id="L154" class="LineNr">154 </span>  <span class="Conceal">¦</span> c:char, done?:bool, source <span class="Special">&lt;-</span> read source
+<span id="L154" class="LineNr">154 </span>  <span class="Conceal">¦</span> c:char, done?:bool, <a href='075channel.mu.html#L43'>source</a> <span class="Special">&lt;-</span> read <a href='075channel.mu.html#L43'>source</a>
 <span id="L155" class="LineNr">155 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
 <span id="L156" class="LineNr">156 </span>  <span class="Conceal">¦</span> $write-to-file file, c
 <span id="L157" class="LineNr">157 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
@@ -220,15 +220,15 @@ if ('onhashchange' in window) {
 <span id="L159" class="LineNr">159 </span>  file <span class="Special">&lt;-</span> $close-file file
 <span id="L160" class="LineNr">160 </span>]
 <span id="L161" class="LineNr">161 </span>
-<span id="L162" class="LineNr">162 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L162'>transmit-to-fake-resource</a> <a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, filename:text, source:&amp;:source:char<span class="muRecipe"> -&gt; </span><a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, source:&amp;:source:char [
+<span id="L162" class="LineNr">162 </span><span class="muRecipe">def</span> <a href='088file.mu.html#L162'>transmit-to-fake-resource</a> <a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, filename:text, <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char<span class="muRecipe"> -&gt; </span><a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char [
 <span id="L163" class="LineNr">163 </span>  <span class="Constant">local-scope</span>
 <span id="L164" class="LineNr">164 </span>  <span class="Constant">load-ingredients</span>
 <span id="L165" class="LineNr">165 </span>  lock:location <span class="Special">&lt;-</span> get-location *resources, <span class="Constant">lock:offset</span>
 <span id="L166" class="LineNr">166 </span>  wait-for-reset-then-set lock
 <span id="L167" class="LineNr">167 </span>  <span class="Comment"># compute new file contents</span>
-<span id="L168" class="LineNr">168 </span>  buf:&amp;:buffer:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
+<span id="L168" class="LineNr">168 </span>  buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>:char <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
 <span id="L169" class="LineNr">169 </span>  <span class="Delimiter">{</span>
-<span id="L170" class="LineNr">170 </span>  <span class="Conceal">¦</span> c:char, done?:bool, source <span class="Special">&lt;-</span> read source
+<span id="L170" class="LineNr">170 </span>  <span class="Conceal">¦</span> c:char, done?:bool, <a href='075channel.mu.html#L43'>source</a> <span class="Special">&lt;-</span> read <a href='075channel.mu.html#L43'>source</a>
 <span id="L171" class="LineNr">171 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
 <span id="L172" class="LineNr">172 </span>  <span class="Conceal">¦</span> buf <span class="Special">&lt;-</span> append buf, c
 <span id="L173" class="LineNr">173 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
diff --git a/html/090scenario_filesystem_test.mu.html b/html/090scenario_filesystem_test.mu.html
index 1fb26361..43f6a5e8 100644
--- a/html/090scenario_filesystem_test.mu.html
+++ b/html/090scenario_filesystem_test.mu.html
@@ -65,7 +65,7 @@ if ('onhashchange' in window) {
 <span id="L7" class="LineNr"> 7 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> </span><span class="Conceal">¦</span><span class="Constant"> |xyz|</span>
 <span id="L8" class="LineNr"> 8 </span>  <span class="Conceal">¦</span> ]
 <span id="L9" class="LineNr"> 9 </span>  ]
-<span id="L10" class="LineNr">10 </span>  contents:&amp;:source:char <span class="Special">&lt;-</span> <a href='088file.mu.html#L21'>start-reading</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[a]</span>
+<span id="L10" class="LineNr">10 </span>  contents:&amp;:<a href='075channel.mu.html#L43'>source</a>:char <span class="Special">&lt;-</span> <a href='088file.mu.html#L21'>start-reading</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[a]</span>
 <span id="L11" class="LineNr">11 </span>  1:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> read contents
 <span id="L12" class="LineNr">12 </span>  2:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> read contents
 <span id="L13" class="LineNr">13 </span>  3:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> read contents
@@ -84,10 +84,10 @@ if ('onhashchange' in window) {
 <span id="L26" class="LineNr">26 </span>  <span class="Constant">local-scope</span>
 <span id="L27" class="LineNr">27 </span>  assume-resources [
 <span id="L28" class="LineNr">28 </span>  ]
-<span id="L29" class="LineNr">29 </span>  sink:&amp;:sink:char, writer:num/routine <span class="Special">&lt;-</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[a]</span>
-<span id="L30" class="LineNr">30 </span>  sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">120/x</span>
-<span id="L31" class="LineNr">31 </span>  sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">121/y</span>
-<span id="L32" class="LineNr">32 </span>  close sink
+<span id="L29" class="LineNr">29 </span>  <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char, writer:num/routine <span class="Special">&lt;-</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[a]</span>
+<span id="L30" class="LineNr">30 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">120/x</span>
+<span id="L31" class="LineNr">31 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">121/y</span>
+<span id="L32" class="LineNr">32 </span>  close <a href='075channel.mu.html#L47'>sink</a>
 <span id="L33" class="LineNr">33 </span>  wait-for-routine writer
 <span id="L34" class="LineNr">34 </span>  contents-read-back:text <span class="Special">&lt;-</span> <a href='088file.mu.html#L38'>slurp</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[a]</span>
 <span id="L35" class="LineNr">35 </span>  10:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal contents-read-back, <span class="Constant">[xy]</span>
@@ -103,10 +103,10 @@ if ('onhashchange' in window) {
 <span id="L45" class="LineNr">45 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> </span><span class="Conceal">¦</span><span class="Constant"> |abc|</span>
 <span id="L46" class="LineNr">46 </span>  <span class="Conceal">¦</span> ]
 <span id="L47" class="LineNr">47 </span>  ]
-<span id="L48" class="LineNr">48 </span>  sink:&amp;:sink:char, writer:num/routine <span class="Special">&lt;-</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[b]</span>
-<span id="L49" class="LineNr">49 </span>  sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">120/x</span>
-<span id="L50" class="LineNr">50 </span>  sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">121/y</span>
-<span id="L51" class="LineNr">51 </span>  close sink
+<span id="L48" class="LineNr">48 </span>  <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char, writer:num/routine <span class="Special">&lt;-</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[b]</span>
+<span id="L49" class="LineNr">49 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">120/x</span>
+<span id="L50" class="LineNr">50 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">121/y</span>
+<span id="L51" class="LineNr">51 </span>  close <a href='075channel.mu.html#L47'>sink</a>
 <span id="L52" class="LineNr">52 </span>  wait-for-routine writer
 <span id="L53" class="LineNr">53 </span>  contents-read-back:text <span class="Special">&lt;-</span> <a href='088file.mu.html#L38'>slurp</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[b]</span>
 <span id="L54" class="LineNr">54 </span>  10:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal contents-read-back, <span class="Constant">[xy]</span>
@@ -120,10 +120,10 @@ if ('onhashchange' in window) {
 <span id="L62" class="LineNr">62 </span>  assume-resources [
 <span id="L63" class="LineNr">63 </span>  <span class="Conceal">¦</span> <span class="Constant">[a]</span> <span class="Special">&lt;-</span> <span class="Constant">[]</span>
 <span id="L64" class="LineNr">64 </span>  ]
-<span id="L65" class="LineNr">65 </span>  sink:&amp;:sink:char, writer:num/routine <span class="Special">&lt;-</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[a]</span>
-<span id="L66" class="LineNr">66 </span>  sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">120/x</span>
-<span id="L67" class="LineNr">67 </span>  sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">121/y</span>
-<span id="L68" class="LineNr">68 </span>  close sink
+<span id="L65" class="LineNr">65 </span>  <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char, writer:num/routine <span class="Special">&lt;-</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[a]</span>
+<span id="L66" class="LineNr">66 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">120/x</span>
+<span id="L67" class="LineNr">67 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">121/y</span>
+<span id="L68" class="LineNr">68 </span>  close <a href='075channel.mu.html#L47'>sink</a>
 <span id="L69" class="LineNr">69 </span>  wait-for-routine writer
 <span id="L70" class="LineNr">70 </span>  contents-read-back:text <span class="Special">&lt;-</span> <a href='088file.mu.html#L38'>slurp</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[a]</span>
 <span id="L71" class="LineNr">71 </span>  10:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal contents-read-back, <span class="Constant">[xy]</span>
@@ -140,10 +140,10 @@ if ('onhashchange' in window) {
 <span id="L82" class="LineNr">82 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> </span><span class="Conceal">¦</span><span class="Constant"> |bcd|</span>
 <span id="L83" class="LineNr">83 </span>  <span class="Conceal">¦</span> ]
 <span id="L84" class="LineNr">84 </span>  ]
-<span id="L85" class="LineNr">85 </span>  sink:&amp;:sink:char, writer:num/routine <span class="Special">&lt;-</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[a]</span>
-<span id="L86" class="LineNr">86 </span>  sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">120/x</span>
-<span id="L87" class="LineNr">87 </span>  sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">121/y</span>
-<span id="L88" class="LineNr">88 </span>  close sink
+<span id="L85" class="LineNr">85 </span>  <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char, writer:num/routine <span class="Special">&lt;-</span> <a href='088file.mu.html#L105'>start-writing</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[a]</span>
+<span id="L86" class="LineNr">86 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">120/x</span>
+<span id="L87" class="LineNr">87 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">121/y</span>
+<span id="L88" class="LineNr">88 </span>  close <a href='075channel.mu.html#L47'>sink</a>
 <span id="L89" class="LineNr">89 </span>  wait-for-routine writer
 <span id="L90" class="LineNr">90 </span>  contents-read-back:text <span class="Special">&lt;-</span> <a href='088file.mu.html#L38'>slurp</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[a]</span>
 <span id="L91" class="LineNr">91 </span>  10:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> equal contents-read-back, <span class="Constant">[xy]</span>
diff --git a/html/092socket.mu.html b/html/092socket.mu.html
index fc6e3b0f..7fd3f9c6 100644
--- a/html/092socket.mu.html
+++ b/html/092socket.mu.html
@@ -76,8 +76,8 @@ if ('onhashchange' in window) {
 <span id="L14" class="LineNr"> 14 </span><span class="Constant">F - example-server-test: $open-server-socket failed]</span>
 <span id="L15" class="LineNr"> 15 </span>  <span class="Conceal">¦</span> handler-routine:number <span class="Special">&lt;-</span> start-running <a href='092socket.mu.html#L55'>serve-one-request</a> socket, <a href='092socket.mu.html#L26'>example-handler</a>
 <span id="L16" class="LineNr"> 16 </span>  ]
-<span id="L17" class="LineNr"> 17 </span>  source:&amp;:source:char <span class="Special">&lt;-</span> <a href='092socket.mu.html#L69'>start-reading-from-network</a> <span class="Constant">0/real-resources</span>, <span class="Constant">[localhost/]</span>, port
-<span id="L18" class="LineNr"> 18 </span>  response:text <span class="Special">&lt;-</span> <a href='075channel.mu.html#L487'>drain</a> source
+<span id="L17" class="LineNr"> 17 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char <span class="Special">&lt;-</span> <a href='092socket.mu.html#L69'>start-reading-from-network</a> <span class="Constant">0/real-resources</span>, <span class="Constant">[localhost/]</span>, port
+<span id="L18" class="LineNr"> 18 </span>  response:text <span class="Special">&lt;-</span> <a href='075channel.mu.html#L487'>drain</a> <a href='075channel.mu.html#L43'>source</a>
 <span id="L19" class="LineNr"> 19 </span>  10:@:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *response
 <span id="L20" class="LineNr"> 20 </span>  memory-should-contain [
 <span id="L21" class="LineNr"> 21 </span>  <span class="Conceal">¦</span> 10:array:character <span class="Special">&lt;-</span> <span class="Constant">[abc]</span>
@@ -102,9 +102,9 @@ if ('onhashchange' in window) {
 <span id="L40" class="LineNr"> 40 </span>  <span class="Conceal">¦</span> ]
 <span id="L41" class="LineNr"> 41 </span>  ]
 <span id="L42" class="LineNr"> 42 </span>  run [
-<span id="L43" class="LineNr"> 43 </span>  <span class="Conceal">¦</span> source:&amp;:source:char <span class="Special">&lt;-</span> <a href='092socket.mu.html#L69'>start-reading-from-network</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[example.com/]</span>
+<span id="L43" class="LineNr"> 43 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char <span class="Special">&lt;-</span> <a href='092socket.mu.html#L69'>start-reading-from-network</a> <a href='088file.mu.html#L11'>resources</a>, <span class="Constant">[example.com/]</span>
 <span id="L44" class="LineNr"> 44 </span>  ]
-<span id="L45" class="LineNr"> 45 </span>  contents:text <span class="Special">&lt;-</span> <a href='075channel.mu.html#L487'>drain</a> source
+<span id="L45" class="LineNr"> 45 </span>  contents:text <span class="Special">&lt;-</span> <a href='075channel.mu.html#L487'>drain</a> <a href='075channel.mu.html#L43'>source</a>
 <span id="L46" class="LineNr"> 46 </span>  10:@:char/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *contents
 <span id="L47" class="LineNr"> 47 </span>  memory-should-contain [
 <span id="L48" class="LineNr"> 48 </span>  <span class="Conceal">¦</span> 10:array:character <span class="Special">&lt;-</span> <span class="Constant">[abc</span>
@@ -120,15 +120,15 @@ if ('onhashchange' in window) {
 <span id="L58" class="LineNr"> 58 </span>  session:num <span class="Special">&lt;-</span> $accept socket
 <span id="L59" class="LineNr"> 59 </span>  assert session, <span class="Constant">[ </span>
 <span id="L60" class="LineNr"> 60 </span><span class="Constant">F - example-server-test: $accept failed]</span>
-<span id="L61" class="LineNr"> 61 </span>  contents:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
-<span id="L62" class="LineNr"> 62 </span>  start-running <a href='092socket.mu.html#L104'>receive-from-socket</a> session, sink
+<span id="L61" class="LineNr"> 61 </span>  contents:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
+<span id="L62" class="LineNr"> 62 </span>  start-running <a href='092socket.mu.html#L104'>receive-from-socket</a> session, <a href='075channel.mu.html#L47'>sink</a>
 <span id="L63" class="LineNr"> 63 </span>  query:text <span class="Special">&lt;-</span> <a href='075channel.mu.html#L487'>drain</a> contents
 <span id="L64" class="LineNr"> 64 </span>  response:text <span class="Special">&lt;-</span> call request-handler, query
 <span id="L65" class="LineNr"> 65 </span>  <a href='092socket.mu.html#L132'>write-to-socket</a> session, response
 <span id="L66" class="LineNr"> 66 </span>  session <span class="Special">&lt;-</span> $close-socket session
 <span id="L67" class="LineNr"> 67 </span>]
 <span id="L68" class="LineNr"> 68 </span>
-<span id="L69" class="LineNr"> 69 </span><span class="muRecipe">def</span> <a href='092socket.mu.html#L69'>start-reading-from-network</a> <a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, uri:text<span class="muRecipe"> -&gt; </span>contents:&amp;:source:char [
+<span id="L69" class="LineNr"> 69 </span><span class="muRecipe">def</span> <a href='092socket.mu.html#L69'>start-reading-from-network</a> <a href='088file.mu.html#L11'>resources</a>:&amp;:<a href='088file.mu.html#L11'>resources</a>, uri:text<span class="muRecipe"> -&gt; </span>contents:&amp;:<a href='075channel.mu.html#L43'>source</a>:char [
 <span id="L70" class="LineNr"> 70 </span>  <span class="Constant">local-scope</span>
 <span id="L71" class="LineNr"> 71 </span>  <span class="Constant">load-ingredients</span>
 <span id="L72" class="LineNr"> 72 </span>  <span class="Delimiter">{</span>
@@ -148,8 +148,8 @@ if ('onhashchange' in window) {
 <span id="L86" class="LineNr"> 86 </span>  assert socket, <span class="Constant">[contents]</span>
 <span id="L87" class="LineNr"> 87 </span>  req:text <span class="Special">&lt;-</span> <a href='061text.mu.html#L505'>interpolate</a> <span class="Constant">[GET _ HTTP/1.1]</span>, path
 <span id="L88" class="LineNr"> 88 </span>  <a href='092socket.mu.html#L93'>request-socket</a> socket, req
-<span id="L89" class="LineNr"> 89 </span>  contents:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 10000</span>
-<span id="L90" class="LineNr"> 90 </span>  start-running <a href='092socket.mu.html#L125'>receive-from-client-socket-and-close</a> socket, sink
+<span id="L89" class="LineNr"> 89 </span>  contents:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 10000</span>
+<span id="L90" class="LineNr"> 90 </span>  start-running <a href='092socket.mu.html#L125'>receive-from-client-socket-and-close</a> socket, <a href='075channel.mu.html#L47'>sink</a>
 <span id="L91" class="LineNr"> 91 </span>]
 <span id="L92" class="LineNr"> 92 </span>
 <span id="L93" class="LineNr"> 93 </span><span class="muRecipe">def</span> <a href='092socket.mu.html#L93'>request-socket</a> socket:num, s:text<span class="muRecipe"> -&gt; </span>socket:num [
@@ -163,7 +163,7 @@ if ('onhashchange' in window) {
 <span id="L101" class="LineNr">101 </span>  $write-to-socket socket, <span class="Constant">10/lf</span>
 <span id="L102" class="LineNr">102 </span>]
 <span id="L103" class="LineNr">103 </span>
-<span id="L104" class="LineNr">104 </span><span class="muRecipe">def</span> <a href='092socket.mu.html#L104'>receive-from-socket</a> socket:num, sink:&amp;:sink:char<span class="muRecipe"> -&gt; </span>sink:&amp;:sink:char, socket:num [
+<span id="L104" class="LineNr">104 </span><span class="muRecipe">def</span> <a href='092socket.mu.html#L104'>receive-from-socket</a> socket:num, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char<span class="muRecipe"> -&gt; </span><a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char, socket:num [
 <span id="L105" class="LineNr">105 </span>  <span class="Constant">local-scope</span>
 <span id="L106" class="LineNr">106 </span>  <span class="Constant">load-ingredients</span>
 <span id="L107" class="LineNr">107 </span>  <span class="Delimiter">{</span>
@@ -173,7 +173,7 @@ if ('onhashchange' in window) {
 <span id="L111" class="LineNr">111 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> error
 <span id="L112" class="LineNr">112 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
 <span id="L113" class="LineNr">113 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> found?
-<span id="L114" class="LineNr">114 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, c
+<span id="L114" class="LineNr">114 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, c
 <span id="L115" class="LineNr">115 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L116" class="LineNr">116 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
 <span id="L117" class="LineNr">117 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> found?
@@ -181,13 +181,13 @@ if ('onhashchange' in window) {
 <span id="L119" class="LineNr">119 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L120" class="LineNr">120 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L121" class="LineNr">121 </span>  <span class="Delimiter">}</span>
-<span id="L122" class="LineNr">122 </span>  sink <span class="Special">&lt;-</span> close sink
+<span id="L122" class="LineNr">122 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> close <a href='075channel.mu.html#L47'>sink</a>
 <span id="L123" class="LineNr">123 </span>]
 <span id="L124" class="LineNr">124 </span>
-<span id="L125" class="LineNr">125 </span><span class="muRecipe">def</span> <a href='092socket.mu.html#L125'>receive-from-client-socket-and-close</a> socket:num, sink:&amp;:sink:char<span class="muRecipe"> -&gt; </span>sink:&amp;:sink:char, socket:num [
+<span id="L125" class="LineNr">125 </span><span class="muRecipe">def</span> <a href='092socket.mu.html#L125'>receive-from-client-socket-and-close</a> socket:num, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char<span class="muRecipe"> -&gt; </span><a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char, socket:num [
 <span id="L126" class="LineNr">126 </span>  <span class="Constant">local-scope</span>
 <span id="L127" class="LineNr">127 </span>  <span class="Constant">load-ingredients</span>
-<span id="L128" class="LineNr">128 </span>  sink <span class="Special">&lt;-</span> <a href='092socket.mu.html#L104'>receive-from-socket</a> socket, sink
+<span id="L128" class="LineNr">128 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='092socket.mu.html#L104'>receive-from-socket</a> socket, <a href='075channel.mu.html#L47'>sink</a>
 <span id="L129" class="LineNr">129 </span>  socket <span class="Special">&lt;-</span> $close-socket socket
 <span id="L130" class="LineNr">130 </span>]
 <span id="L131" class="LineNr">131 </span>
diff --git a/html/channel.mu.html b/html/channel.mu.html
index bc5b1141..bb0808f1 100644
--- a/html/channel.mu.html
+++ b/html/channel.mu.html
@@ -60,7 +60,7 @@ if ('onhashchange' in window) {
 <pre id='vimCodeElement'>
 <span id="L1" class="LineNr"> 1 </span><span class="Comment"># example program: communicating between routines using channels</span>
 <span id="L2" class="LineNr"> 2 </span>
-<span id="L3" class="LineNr"> 3 </span><span class="muRecipe">def</span> <a href='channel.mu.html#L3'>producer</a> sink:&amp;:sink:char<span class="muRecipe"> -&gt; </span>sink:&amp;:sink:char [
+<span id="L3" class="LineNr"> 3 </span><span class="muRecipe">def</span> <a href='channel.mu.html#L3'>producer</a> <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char<span class="muRecipe"> -&gt; </span><a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char [
 <span id="L4" class="LineNr"> 4 </span>  <span class="Comment"># produce characters 1 to 5 on a channel</span>
 <span id="L5" class="LineNr"> 5 </span>  <span class="Constant">local-scope</span>
 <span id="L6" class="LineNr"> 6 </span>  <span class="Constant">load-ingredients</span>
@@ -72,20 +72,20 @@ if ('onhashchange' in window) {
 <span id="L12" class="LineNr">12 </span>  <span class="Conceal">¦</span> <span class="Comment"># other threads might get between these prints</span>
 <span id="L13" class="LineNr">13 </span>  <span class="Conceal">¦</span> $print <span class="Constant">[produce: ]</span>, n, <span class="Constant">[ </span>
 <span id="L14" class="LineNr">14 </span><span class="Constant">]</span>
-<span id="L15" class="LineNr">15 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, n
+<span id="L15" class="LineNr">15 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, n
 <span id="L16" class="LineNr">16 </span>  <span class="Conceal">¦</span> n <span class="Special">&lt;-</span> add n,<span class="Constant"> 1</span>
 <span id="L17" class="LineNr">17 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L18" class="LineNr">18 </span>  <span class="Delimiter">}</span>
-<span id="L19" class="LineNr">19 </span>  close sink
+<span id="L19" class="LineNr">19 </span>  close <a href='075channel.mu.html#L47'>sink</a>
 <span id="L20" class="LineNr">20 </span>]
 <span id="L21" class="LineNr">21 </span>
-<span id="L22" class="LineNr">22 </span><span class="muRecipe">def</span> <a href='channel.mu.html#L22'>consumer</a> source:&amp;:source:char<span class="muRecipe"> -&gt; </span>source:&amp;:source:char [
+<span id="L22" class="LineNr">22 </span><span class="muRecipe">def</span> <a href='channel.mu.html#L22'>consumer</a> <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char<span class="muRecipe"> -&gt; </span><a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char [
 <span id="L23" class="LineNr">23 </span>  <span class="Comment"># consume and print integers from a channel</span>
 <span id="L24" class="LineNr">24 </span>  <span class="Constant">local-scope</span>
 <span id="L25" class="LineNr">25 </span>  <span class="Constant">load-ingredients</span>
 <span id="L26" class="LineNr">26 </span>  <span class="Delimiter">{</span>
 <span id="L27" class="LineNr">27 </span>  <span class="Conceal">¦</span> <span class="Comment"># read an integer from the channel</span>
-<span id="L28" class="LineNr">28 </span>  <span class="Conceal">¦</span> n:char, eof?:bool, source <span class="Special">&lt;-</span> read source
+<span id="L28" class="LineNr">28 </span>  <span class="Conceal">¦</span> n:char, eof?:bool, <a href='075channel.mu.html#L43'>source</a> <span class="Special">&lt;-</span> read <a href='075channel.mu.html#L43'>source</a>
 <span id="L29" class="LineNr">29 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> eof?
 <span id="L30" class="LineNr">30 </span>  <span class="Conceal">¦</span> <span class="Comment"># other threads might get between these prints</span>
 <span id="L31" class="LineNr">31 </span>  <span class="Conceal">¦</span> $print <span class="Constant">[consume: ]</span>, n:char, <span class="Constant">[ </span>
@@ -96,10 +96,10 @@ if ('onhashchange' in window) {
 <span id="L36" class="LineNr">36 </span>
 <span id="L37" class="LineNr">37 </span><span class="muRecipe">def</span> <a href='channel.mu.html#L37'>main</a> [
 <span id="L38" class="LineNr">38 </span>  <span class="Constant">local-scope</span>
-<span id="L39" class="LineNr">39 </span>  source:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
+<span id="L39" class="LineNr">39 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">3/capacity</span>
 <span id="L40" class="LineNr">40 </span>  <span class="Comment"># create two background 'routines' that communicate by a channel</span>
-<span id="L41" class="LineNr">41 </span>  routine1:num <span class="Special">&lt;-</span> start-running <a href='channel.mu.html#L3'>producer</a>, sink
-<span id="L42" class="LineNr">42 </span>  routine2:num <span class="Special">&lt;-</span> start-running <a href='channel.mu.html#L22'>consumer</a>, source
+<span id="L41" class="LineNr">41 </span>  routine1:num <span class="Special">&lt;-</span> start-running <a href='channel.mu.html#L3'>producer</a>, <a href='075channel.mu.html#L47'>sink</a>
+<span id="L42" class="LineNr">42 </span>  routine2:num <span class="Special">&lt;-</span> start-running <a href='channel.mu.html#L22'>consumer</a>, <a href='075channel.mu.html#L43'>source</a>
 <span id="L43" class="LineNr">43 </span>  wait-for-routine routine1
 <span id="L44" class="LineNr">44 </span>  wait-for-routine routine2
 <span id="L45" class="LineNr">45 </span>]
diff --git a/html/chessboard.mu.html b/html/chessboard.mu.html
index a598c8f7..7129dfea 100644
--- a/html/chessboard.mu.html
+++ b/html/chessboard.mu.html
@@ -134,10 +134,10 @@ if ('onhashchange' in window) {
 <span id="L70" class="LineNr"> 70 </span>  <span class="Constant">load-ingredients</span>
 <span id="L71" class="LineNr"> 71 </span>  board:board <span class="Special">&lt;-</span> <a href='chessboard.mu.html#L179'>initial-position</a>
 <span id="L72" class="LineNr"> 72 </span>  <span class="Comment"># hook up stdin</span>
-<span id="L73" class="LineNr"> 73 </span>  stdin-in:&amp;:source:char, stdin-out:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">10/capacity</span>
+<span id="L73" class="LineNr"> 73 </span>  stdin-in:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, stdin-out:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">10/capacity</span>
 <span id="L74" class="LineNr"> 74 </span>  start-running <a href='084console.mu.html#L73'>send-keys-to-channel</a>, <a href='084console.mu.html#L23'>console</a>, stdin-out, <a href='081print.mu.html#L4'>screen</a>
 <span id="L75" class="LineNr"> 75 </span>  <span class="Comment"># buffer lines in stdin</span>
-<span id="L76" class="LineNr"> 76 </span>  buffered-stdin-in:&amp;:source:char, buffered-stdin-out:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">10/capacity</span>
+<span id="L76" class="LineNr"> 76 </span>  buffered-stdin-in:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, buffered-stdin-out:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">10/capacity</span>
 <span id="L77" class="LineNr"> 77 </span>  start-running <a href='075channel.mu.html#L388'>buffer-lines</a>, stdin-in, buffered-stdin-out
 <span id="L78" class="LineNr"> 78 </span>  <span class="Delimiter">{</span>
 <span id="L79" class="LineNr"> 79 </span>  <span class="Conceal">¦</span> print <a href='081print.mu.html#L4'>screen</a>, <span class="Constant">[Stupid text-mode chessboard. White pieces in uppercase; black pieces in lowercase. No checking for legal moves.</span>
@@ -298,7 +298,7 @@ if ('onhashchange' in window) {
 <span id="L234" class="LineNr">234 </span>]
 <span id="L235" class="LineNr">235 </span>
 <span id="L236" class="LineNr">236 </span><span class="Comment"># prints only error messages to screen</span>
-<span id="L237" class="LineNr">237 </span><span class="muRecipe">def</span> <a href='chessboard.mu.html#L237'>read-move</a> stdin:&amp;:source:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>result:&amp;:<a href='chessboard.mu.html#L228'>move</a>, quit?:bool, error?:bool, stdin:&amp;:source:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a> [
+<span id="L237" class="LineNr">237 </span><span class="muRecipe">def</span> <a href='chessboard.mu.html#L237'>read-move</a> stdin:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>result:&amp;:<a href='chessboard.mu.html#L228'>move</a>, quit?:bool, error?:bool, stdin:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a> [
 <span id="L238" class="LineNr">238 </span>  <span class="Constant">local-scope</span>
 <span id="L239" class="LineNr">239 </span>  <span class="Constant">load-ingredients</span>
 <span id="L240" class="LineNr">240 </span>  from-file:num, quit?:bool, error?:bool <span class="Special">&lt;-</span> <a href='chessboard.mu.html#L265'>read-file</a> stdin, <a href='081print.mu.html#L4'>screen</a>
@@ -326,7 +326,7 @@ if ('onhashchange' in window) {
 <span id="L262" class="LineNr">262 </span>]
 <span id="L263" class="LineNr">263 </span>
 <span id="L264" class="LineNr">264 </span><span class="Comment"># valid values for file: 0-7</span>
-<span id="L265" class="LineNr">265 </span><span class="muRecipe">def</span> <a href='chessboard.mu.html#L265'>read-file</a> stdin:&amp;:source:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>file:num, quit:bool, error:bool, stdin:&amp;:source:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a> [
+<span id="L265" class="LineNr">265 </span><span class="muRecipe">def</span> <a href='chessboard.mu.html#L265'>read-file</a> stdin:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>file:num, quit:bool, error:bool, stdin:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a> [
 <span id="L266" class="LineNr">266 </span>  <span class="Constant">local-scope</span>
 <span id="L267" class="LineNr">267 </span>  <span class="Constant">load-ingredients</span>
 <span id="L268" class="LineNr">268 </span>  c:char, eof?:bool, stdin <span class="Special">&lt;-</span> read stdin
@@ -373,7 +373,7 @@ if ('onhashchange' in window) {
 <span id="L309" class="LineNr">309 </span>]
 <span id="L310" class="LineNr">310 </span>
 <span id="L311" class="LineNr">311 </span><span class="Comment"># valid values for rank: 0-7</span>
-<span id="L312" class="LineNr">312 </span><span class="muRecipe">def</span> <a href='chessboard.mu.html#L312'>read-rank</a> stdin:&amp;:source:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>rank:num, quit?:bool, error?:bool, stdin:&amp;:source:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a> [
+<span id="L312" class="LineNr">312 </span><span class="muRecipe">def</span> <a href='chessboard.mu.html#L312'>read-rank</a> stdin:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>rank:num, quit?:bool, error?:bool, stdin:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a> [
 <span id="L313" class="LineNr">313 </span>  <span class="Constant">local-scope</span>
 <span id="L314" class="LineNr">314 </span>  <span class="Constant">load-ingredients</span>
 <span id="L315" class="LineNr">315 </span>  c:char, eof?:bool, stdin <span class="Special">&lt;-</span> read stdin
@@ -415,7 +415,7 @@ if ('onhashchange' in window) {
 <span id="L351" class="LineNr">351 </span>
 <span id="L352" class="LineNr">352 </span><span class="Comment"># read a character from the given channel and check that it's what we expect</span>
 <span id="L353" class="LineNr">353 </span><span class="Comment"># return true on error</span>
-<span id="L354" class="LineNr">354 </span><span class="muRecipe">def</span> <a href='chessboard.mu.html#L354'>expect-from-channel</a> stdin:&amp;:source:char, expected:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>result:bool, stdin:&amp;:source:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a> [
+<span id="L354" class="LineNr">354 </span><span class="muRecipe">def</span> <a href='chessboard.mu.html#L354'>expect-from-channel</a> stdin:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, expected:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>result:bool, stdin:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a> [
 <span id="L355" class="LineNr">355 </span>  <span class="Constant">local-scope</span>
 <span id="L356" class="LineNr">356 </span>  <span class="Constant">load-ingredients</span>
 <span id="L357" class="LineNr">357 </span>  c:char, eof?:bool, stdin <span class="Special">&lt;-</span> read stdin
@@ -431,8 +431,8 @@ if ('onhashchange' in window) {
 <span id="L367" class="LineNr">367 </span><span class="muScenario">scenario</span> read-move-blocking [
 <span id="L368" class="LineNr">368 </span>  <span class="Constant">local-scope</span>
 <span id="L369" class="LineNr">369 </span>  assume-screen <span class="Constant">20/width</span>, <span class="Constant">2/height</span>
-<span id="L370" class="LineNr">370 </span>  source:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">2/capacity</span>
-<span id="L371" class="LineNr">371 </span>  read-move-routine:num/routine <span class="Special">&lt;-</span> start-running <a href='chessboard.mu.html#L237'>read-move</a>, source, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a>
+<span id="L370" class="LineNr">370 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">2/capacity</span>
+<span id="L371" class="LineNr">371 </span>  read-move-routine:num/routine <span class="Special">&lt;-</span> start-running <a href='chessboard.mu.html#L237'>read-move</a>, <a href='075channel.mu.html#L43'>source</a>, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a>
 <span id="L372" class="LineNr">372 </span>  run [
 <span id="L373" class="LineNr">373 </span>  <span class="Conceal">¦</span> <span class="Comment"># 'read-move' is waiting for input</span>
 <span id="L374" class="LineNr">374 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
@@ -441,7 +441,7 @@ if ('onhashchange' in window) {
 <span id="L377" class="LineNr">377 </span>  <span class="Conceal">¦</span> assert waiting?, <span class="Constant">[ </span>
 <span id="L378" class="LineNr">378 </span><span class="Constant">F read-move-blocking: routine failed to pause after coming up (before any keys were pressed)]</span>
 <span id="L379" class="LineNr">379 </span>  <span class="Conceal">¦</span> <span class="Comment"># press 'a'</span>
-<span id="L380" class="LineNr">380 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">97/a</span>
+<span id="L380" class="LineNr">380 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">97/a</span>
 <span id="L381" class="LineNr">381 </span>  <span class="Conceal">¦</span> restart read-move-routine
 <span id="L382" class="LineNr">382 </span>  <span class="Conceal">¦</span> <span class="Comment"># 'read-move' still waiting for input</span>
 <span id="L383" class="LineNr">383 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
@@ -450,7 +450,7 @@ if ('onhashchange' in window) {
 <span id="L386" class="LineNr">386 </span>  <span class="Conceal">¦</span> assert waiting?, <span class="Constant">[ </span>
 <span id="L387" class="LineNr">387 </span><span class="Constant">F read-move-blocking: routine failed to pause after rank 'a']</span>
 <span id="L388" class="LineNr">388 </span>  <span class="Conceal">¦</span> <span class="Comment"># press '2'</span>
-<span id="L389" class="LineNr">389 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">50/'2'</span>
+<span id="L389" class="LineNr">389 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">50/'2'</span>
 <span id="L390" class="LineNr">390 </span>  <span class="Conceal">¦</span> restart read-move-routine
 <span id="L391" class="LineNr">391 </span>  <span class="Conceal">¦</span> <span class="Comment"># 'read-move' still waiting for input</span>
 <span id="L392" class="LineNr">392 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
@@ -459,7 +459,7 @@ if ('onhashchange' in window) {
 <span id="L395" class="LineNr">395 </span>  <span class="Conceal">¦</span> assert waiting?, <span class="Constant">[ </span>
 <span id="L396" class="LineNr">396 </span><span class="Constant">F read-move-blocking: routine failed to pause after file 'a2']</span>
 <span id="L397" class="LineNr">397 </span>  <span class="Conceal">¦</span> <span class="Comment"># press '-'</span>
-<span id="L398" class="LineNr">398 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">45/'-'</span>
+<span id="L398" class="LineNr">398 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">45/'-'</span>
 <span id="L399" class="LineNr">399 </span>  <span class="Conceal">¦</span> restart read-move-routine
 <span id="L400" class="LineNr">400 </span>  <span class="Conceal">¦</span> <span class="Comment"># 'read-move' still waiting for input</span>
 <span id="L401" class="LineNr">401 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
@@ -468,7 +468,7 @@ if ('onhashchange' in window) {
 <span id="L404" class="LineNr">404 </span>  <span class="Conceal">¦</span> assert waiting?, <span class="Constant">[ </span>
 <span id="L405" class="LineNr">405 </span><span class="Constant">F read-move-blocking: routine failed to pause after hyphen 'a2-']</span>
 <span id="L406" class="LineNr">406 </span>  <span class="Conceal">¦</span> <span class="Comment"># press 'a'</span>
-<span id="L407" class="LineNr">407 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">97/a</span>
+<span id="L407" class="LineNr">407 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">97/a</span>
 <span id="L408" class="LineNr">408 </span>  <span class="Conceal">¦</span> restart read-move-routine
 <span id="L409" class="LineNr">409 </span>  <span class="Conceal">¦</span> <span class="Comment"># 'read-move' still waiting for input</span>
 <span id="L410" class="LineNr">410 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
@@ -477,7 +477,7 @@ if ('onhashchange' in window) {
 <span id="L413" class="LineNr">413 </span>  <span class="Conceal">¦</span> assert waiting?, <span class="Constant">[ </span>
 <span id="L414" class="LineNr">414 </span><span class="Constant">F read-move-blocking: routine failed to pause after rank 'a2-a']</span>
 <span id="L415" class="LineNr">415 </span>  <span class="Conceal">¦</span> <span class="Comment"># press '4'</span>
-<span id="L416" class="LineNr">416 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">52/'4'</span>
+<span id="L416" class="LineNr">416 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">52/'4'</span>
 <span id="L417" class="LineNr">417 </span>  <span class="Conceal">¦</span> restart read-move-routine
 <span id="L418" class="LineNr">418 </span>  <span class="Conceal">¦</span> <span class="Comment"># 'read-move' still waiting for input</span>
 <span id="L419" class="LineNr">419 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
@@ -486,7 +486,7 @@ if ('onhashchange' in window) {
 <span id="L422" class="LineNr">422 </span>  <span class="Conceal">¦</span> assert waiting?, <span class="Constant">[ </span>
 <span id="L423" class="LineNr">423 </span><span class="Constant">F read-move-blocking: routine failed to pause after file 'a2-a4']</span>
 <span id="L424" class="LineNr">424 </span>  <span class="Conceal">¦</span> <span class="Comment"># press 'newline'</span>
-<span id="L425" class="LineNr">425 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 10</span>  <span class="Comment"># newline</span>
+<span id="L425" class="LineNr">425 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>,<span class="Constant"> 10</span>  <span class="Comment"># newline</span>
 <span id="L426" class="LineNr">426 </span>  <span class="Conceal">¦</span> restart read-move-routine
 <span id="L427" class="LineNr">427 </span>  <span class="Conceal">¦</span> <span class="Comment"># 'read-move' now completes</span>
 <span id="L428" class="LineNr">428 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
@@ -504,8 +504,8 @@ if ('onhashchange' in window) {
 <span id="L440" class="LineNr">440 </span><span class="muScenario">scenario</span> read-move-quit [
 <span id="L441" class="LineNr">441 </span>  <span class="Constant">local-scope</span>
 <span id="L442" class="LineNr">442 </span>  assume-screen <span class="Constant">20/width</span>, <span class="Constant">2/height</span>
-<span id="L443" class="LineNr">443 </span>  source:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">2/capacity</span>
-<span id="L444" class="LineNr">444 </span>  read-move-routine:num <span class="Special">&lt;-</span> start-running <a href='chessboard.mu.html#L237'>read-move</a>, source, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a>
+<span id="L443" class="LineNr">443 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">2/capacity</span>
+<span id="L444" class="LineNr">444 </span>  read-move-routine:num <span class="Special">&lt;-</span> start-running <a href='chessboard.mu.html#L237'>read-move</a>, <a href='075channel.mu.html#L43'>source</a>, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a>
 <span id="L445" class="LineNr">445 </span>  run [
 <span id="L446" class="LineNr">446 </span>  <span class="Conceal">¦</span> <span class="Comment"># 'read-move' is waiting for input</span>
 <span id="L447" class="LineNr">447 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
@@ -514,7 +514,7 @@ if ('onhashchange' in window) {
 <span id="L450" class="LineNr">450 </span>  <span class="Conceal">¦</span> assert waiting?, <span class="Constant">[ </span>
 <span id="L451" class="LineNr">451 </span><span class="Constant">F read-move-quit: routine failed to pause after coming up (before any keys were pressed)]</span>
 <span id="L452" class="LineNr">452 </span>  <span class="Conceal">¦</span> <span class="Comment"># press 'q'</span>
-<span id="L453" class="LineNr">453 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">113/q</span>
+<span id="L453" class="LineNr">453 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">113/q</span>
 <span id="L454" class="LineNr">454 </span>  <span class="Conceal">¦</span> restart read-move-routine
 <span id="L455" class="LineNr">455 </span>  <span class="Conceal">¦</span> <span class="Comment"># 'read-move' completes</span>
 <span id="L456" class="LineNr">456 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
@@ -532,8 +532,8 @@ if ('onhashchange' in window) {
 <span id="L468" class="LineNr">468 </span><span class="muScenario">scenario</span> read-move-illegal-file [
 <span id="L469" class="LineNr">469 </span>  <span class="Constant">local-scope</span>
 <span id="L470" class="LineNr">470 </span>  assume-screen <span class="Constant">20/width</span>, <span class="Constant">2/height</span>
-<span id="L471" class="LineNr">471 </span>  source:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">2/capacity</span>
-<span id="L472" class="LineNr">472 </span>  read-move-routine:num <span class="Special">&lt;-</span> start-running <a href='chessboard.mu.html#L237'>read-move</a>, source, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a>
+<span id="L471" class="LineNr">471 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">2/capacity</span>
+<span id="L472" class="LineNr">472 </span>  read-move-routine:num <span class="Special">&lt;-</span> start-running <a href='chessboard.mu.html#L237'>read-move</a>, <a href='075channel.mu.html#L43'>source</a>, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a>
 <span id="L473" class="LineNr">473 </span>  run [
 <span id="L474" class="LineNr">474 </span>  <span class="Conceal">¦</span> <span class="Comment"># 'read-move' is waiting for input</span>
 <span id="L475" class="LineNr">475 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
@@ -541,7 +541,7 @@ if ('onhashchange' in window) {
 <span id="L477" class="LineNr">477 </span>  <span class="Conceal">¦</span> waiting?:bool <span class="Special">&lt;-</span> not-equal read-move-state, <span class="Constant">2/discontinued</span>
 <span id="L478" class="LineNr">478 </span>  <span class="Conceal">¦</span> assert waiting?, <span class="Constant">[ </span>
 <span id="L479" class="LineNr">479 </span><span class="Constant">F read-move-illegal-file: routine failed to pause after coming up (before any keys were pressed)]</span>
-<span id="L480" class="LineNr">480 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">50/'2'</span>
+<span id="L480" class="LineNr">480 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">50/'2'</span>
 <span id="L481" class="LineNr">481 </span>  <span class="Conceal">¦</span> restart read-move-routine
 <span id="L482" class="LineNr">482 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
 <span id="L483" class="LineNr">483 </span>  ]
@@ -554,8 +554,8 @@ if ('onhashchange' in window) {
 <span id="L490" class="LineNr">490 </span><span class="muScenario">scenario</span> read-move-illegal-rank [
 <span id="L491" class="LineNr">491 </span>  <span class="Constant">local-scope</span>
 <span id="L492" class="LineNr">492 </span>  assume-screen <span class="Constant">20/width</span>, <span class="Constant">2/height</span>
-<span id="L493" class="LineNr">493 </span>  source:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">2/capacity</span>
-<span id="L494" class="LineNr">494 </span>  read-move-routine:num <span class="Special">&lt;-</span> start-running <a href='chessboard.mu.html#L237'>read-move</a>, source, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a>
+<span id="L493" class="LineNr">493 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">2/capacity</span>
+<span id="L494" class="LineNr">494 </span>  read-move-routine:num <span class="Special">&lt;-</span> start-running <a href='chessboard.mu.html#L237'>read-move</a>, <a href='075channel.mu.html#L43'>source</a>, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a>
 <span id="L495" class="LineNr">495 </span>  run [
 <span id="L496" class="LineNr">496 </span>  <span class="Conceal">¦</span> <span class="Comment"># 'read-move' is waiting for input</span>
 <span id="L497" class="LineNr">497 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
@@ -563,8 +563,8 @@ if ('onhashchange' in window) {
 <span id="L499" class="LineNr">499 </span>  <span class="Conceal">¦</span> waiting?:bool <span class="Special">&lt;-</span> not-equal read-move-state, <span class="Constant">2/discontinued</span>
 <span id="L500" class="LineNr">500 </span>  <span class="Conceal">¦</span> assert waiting?, <span class="Constant">[ </span>
 <span id="L501" class="LineNr">501 </span><span class="Constant">F read-move-illegal-rank: routine failed to pause after coming up (before any keys were pressed)]</span>
-<span id="L502" class="LineNr">502 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">97/a</span>
-<span id="L503" class="LineNr">503 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">97/a</span>
+<span id="L502" class="LineNr">502 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">97/a</span>
+<span id="L503" class="LineNr">503 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">97/a</span>
 <span id="L504" class="LineNr">504 </span>  <span class="Conceal">¦</span> restart read-move-routine
 <span id="L505" class="LineNr">505 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
 <span id="L506" class="LineNr">506 </span>  ]
@@ -577,8 +577,8 @@ if ('onhashchange' in window) {
 <span id="L513" class="LineNr">513 </span><span class="muScenario">scenario</span> read-move-empty [
 <span id="L514" class="LineNr">514 </span>  <span class="Constant">local-scope</span>
 <span id="L515" class="LineNr">515 </span>  assume-screen <span class="Constant">20/width</span>, <span class="Constant">2/height</span>
-<span id="L516" class="LineNr">516 </span>  source:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">2/capacity</span>
-<span id="L517" class="LineNr">517 </span>  read-move-routine:num <span class="Special">&lt;-</span> start-running <a href='chessboard.mu.html#L237'>read-move</a>, source, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a>
+<span id="L516" class="LineNr">516 </span>  <a href='075channel.mu.html#L43'>source</a>:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a> <span class="Constant">2/capacity</span>
+<span id="L517" class="LineNr">517 </span>  read-move-routine:num <span class="Special">&lt;-</span> start-running <a href='chessboard.mu.html#L237'>read-move</a>, <a href='075channel.mu.html#L43'>source</a>, <a href='081print.mu.html#L4'>screen</a>:&amp;:<a href='081print.mu.html#L4'>screen</a>
 <span id="L518" class="LineNr">518 </span>  run [
 <span id="L519" class="LineNr">519 </span>  <span class="Conceal">¦</span> <span class="Comment"># 'read-move' is waiting for input</span>
 <span id="L520" class="LineNr">520 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
@@ -586,8 +586,8 @@ if ('onhashchange' in window) {
 <span id="L522" class="LineNr">522 </span>  <span class="Conceal">¦</span> waiting?:bool <span class="Special">&lt;-</span> not-equal read-move-state, <span class="Constant">2/discontinued</span>
 <span id="L523" class="LineNr">523 </span>  <span class="Conceal">¦</span> assert waiting?, <span class="Constant">[ </span>
 <span id="L524" class="LineNr">524 </span><span class="Constant">F read-move-empty: routine failed to pause after coming up (before any keys were pressed)]</span>
-<span id="L525" class="LineNr">525 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">10/newline</span>
-<span id="L526" class="LineNr">526 </span>  <span class="Conceal">¦</span> sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">97/a</span>
+<span id="L525" class="LineNr">525 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">10/newline</span>
+<span id="L526" class="LineNr">526 </span>  <span class="Conceal">¦</span> <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> <a href='075channel.mu.html#L47'>sink</a>, <span class="Constant">97/a</span>
 <span id="L527" class="LineNr">527 </span>  <span class="Conceal">¦</span> restart read-move-routine
 <span id="L528" class="LineNr">528 </span>  <span class="Conceal">¦</span> wait-for-routine-to-block read-move-routine
 <span id="L529" class="LineNr">529 </span>  ]
diff --git a/html/edit/001-editor.mu.html b/html/edit/001-editor.mu.html
index f9282fcc..14307ec2 100644
--- a/html/edit/001-editor.mu.html
+++ b/html/edit/001-editor.mu.html
@@ -92,11 +92,11 @@ if ('onhashchange' in window) {
 <span id="L29" class="LineNr"> 29 </span>
 <span id="L30" class="LineNr"> 30 </span><span class="muData">container</span> editor [
 <span id="L31" class="LineNr"> 31 </span>  <span class="Comment"># editable text: doubly linked list of characters (head contains a special sentinel)</span>
-<span id="L32" class="LineNr"> 32 </span>  data:&amp;:duplex-list:char
-<span id="L33" class="LineNr"> 33 </span>  top-of-screen:&amp;:duplex-list:char
-<span id="L34" class="LineNr"> 34 </span>  bottom-of-screen:&amp;:duplex-list:char
+<span id="L32" class="LineNr"> 32 </span>  data:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
+<span id="L33" class="LineNr"> 33 </span>  top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
+<span id="L34" class="LineNr"> 34 </span>  bottom-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
 <span id="L35" class="LineNr"> 35 </span>  <span class="Comment"># location before cursor inside data</span>
-<span id="L36" class="LineNr"> 36 </span>  before-cursor:&amp;:duplex-list:char
+<span id="L36" class="LineNr"> 36 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
 <span id="L37" class="LineNr"> 37 </span>
 <span id="L38" class="LineNr"> 38 </span>  <span class="Comment"># raw bounds of display area on screen</span>
 <span id="L39" class="LineNr"> 39 </span>  <span class="Comment"># always displays from row 1 (leaving row 0 for a menu) and at most until bottom of screen</span>
@@ -123,7 +123,7 @@ if ('onhashchange' in window) {
 <span id="L60" class="LineNr"> 60 </span>  *result <span class="Special">&lt;-</span> put *result, <span class="Constant">cursor-row:offset</span>, <span class="Constant">1/top</span>
 <span id="L61" class="LineNr"> 61 </span>  *result <span class="Special">&lt;-</span> put *result, <span class="Constant">cursor-column:offset</span>, left
 <span id="L62" class="LineNr"> 62 </span>  <span class="Comment"># initialize empty contents</span>
-<span id="L63" class="LineNr"> 63 </span>  init:&amp;:duplex-list:char <span class="Special">&lt;-</span> push <span class="Constant">167/§</span>, <span class="Constant">0/tail</span>
+<span id="L63" class="LineNr"> 63 </span>  init:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push <span class="Constant">167/§</span>, <span class="Constant">0/tail</span>
 <span id="L64" class="LineNr"> 64 </span>  *result <span class="Special">&lt;-</span> put *result, <span class="Constant">data:offset</span>, init
 <span id="L65" class="LineNr"> 65 </span>  *result <span class="Special">&lt;-</span> put *result, <span class="Constant">top-of-screen:offset</span>, init
 <span id="L66" class="LineNr"> 66 </span>  *result <span class="Special">&lt;-</span> put *result, <span class="Constant">before-cursor:offset</span>, init
@@ -140,7 +140,7 @@ if ('onhashchange' in window) {
 <span id="L77" class="LineNr"> 77 </span>  <span class="muControl">return-unless</span> len
 <span id="L78" class="LineNr"> 78 </span>  idx:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
 <span id="L79" class="LineNr"> 79 </span>  <span class="Comment"># now we can start appending the rest, character by character</span>
-<span id="L80" class="LineNr"> 80 </span>  curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
+<span id="L80" class="LineNr"> 80 </span>  curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
 <span id="L81" class="LineNr"> 81 </span>  <span class="Delimiter">{</span>
 <span id="L82" class="LineNr"> 82 </span>  <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> greater-or-equal idx, len
 <span id="L83" class="LineNr"> 83 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
@@ -189,8 +189,8 @@ if ('onhashchange' in window) {
 <span id="L126" class="LineNr">126 </span>  <a href='../081print.mu.html#L587'>screen-height</a>:num <span class="Special">&lt;-</span> <a href='../081print.mu.html#L587'>screen-height</a> <a href='../081print.mu.html#L4'>screen</a>
 <span id="L127" class="LineNr">127 </span>  right:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">right:offset</span>
 <span id="L128" class="LineNr">128 </span>  <span class="Comment"># traversing editor</span>
-<span id="L129" class="LineNr">129 </span>  curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
-<span id="L130" class="LineNr">130 </span>  <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy curr  <span class="Comment"># just in case curr becomes null and we can't compute prev</span>
+<span id="L129" class="LineNr">129 </span>  curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L130" class="LineNr">130 </span>  <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy curr  <span class="Comment"># just in case curr becomes null and we can't compute prev</span>
 <span id="L131" class="LineNr">131 </span>  curr <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> curr
 <span id="L132" class="LineNr">132 </span>  <span class="Comment"># traversing screen</span>
 <span id="L133" class="LineNr">133 </span>  color:num <span class="Special">&lt;-</span> copy <span class="Constant">7/white</span>
@@ -198,7 +198,7 @@ if ('onhashchange' in window) {
 <span id="L135" class="LineNr">135 </span>  column:num <span class="Special">&lt;-</span> copy left
 <span id="L136" class="LineNr">136 </span>  cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L137" class="LineNr">137 </span>  cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
-<span id="L138" class="LineNr">138 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L138" class="LineNr">138 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
 <span id="L139" class="LineNr">139 </span>  <a href='../081print.mu.html#L4'>screen</a> <span class="Special">&lt;-</span> <a href='../081print.mu.html#L435'>move-cursor</a> <a href='../081print.mu.html#L4'>screen</a>, row, column
 <span id="L140" class="LineNr">140 </span>  <span class="Delimiter">{</span>
 <span id="L141" class="LineNr">141 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> +next-character</span>
diff --git a/html/edit/002-typing.mu.html b/html/edit/002-typing.mu.html
index 3b48c3cc..ad249e5c 100644
--- a/html/edit/002-typing.mu.html
+++ b/html/edit/002-typing.mu.html
@@ -141,8 +141,8 @@ if ('onhashchange' in window) {
 <span id="L78" class="LineNr">  78 </span>  right:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">right:offset</span>
 <span id="L79" class="LineNr">  79 </span>  <a href='../081print.mu.html#L587'>screen-height</a>:num <span class="Special">&lt;-</span> <a href='../081print.mu.html#L587'>screen-height</a> <a href='../081print.mu.html#L4'>screen</a>
 <span id="L80" class="LineNr">  80 </span>  <span class="Comment"># count newlines until screen row</span>
-<span id="L81" class="LineNr">  81 </span>  curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
-<span id="L82" class="LineNr">  82 </span>  <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy curr  <span class="Comment"># just in case curr becomes null and we can't compute prev</span>
+<span id="L81" class="LineNr">  81 </span>  curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L82" class="LineNr">  82 </span>  <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy curr  <span class="Comment"># just in case curr becomes null and we can't compute prev</span>
 <span id="L83" class="LineNr">  83 </span>  curr <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> curr
 <span id="L84" class="LineNr">  84 </span>  row:num <span class="Special">&lt;-</span> copy <span class="Constant">1/top</span>
 <span id="L85" class="LineNr">  85 </span>  column:num <span class="Special">&lt;-</span> copy left
@@ -150,7 +150,7 @@ if ('onhashchange' in window) {
 <span id="L87" class="LineNr">  87 </span>  cursor-row:num <span class="Special">&lt;-</span> copy target-row
 <span id="L88" class="LineNr">  88 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-column:offset</span>, target-column
 <span id="L89" class="LineNr">  89 </span>  cursor-column:num <span class="Special">&lt;-</span> copy target-column
-<span id="L90" class="LineNr">  90 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L90" class="LineNr">  90 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
 <span id="L91" class="LineNr">  91 </span>  <span class="Delimiter">{</span>
 <span id="L92" class="LineNr">  92 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> +next-character</span>
 <span id="L93" class="LineNr">  93 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> curr
@@ -232,7 +232,7 @@ if ('onhashchange' in window) {
 <span id="L169" class="LineNr"> 169 </span>  <a href='../081print.mu.html#L587'>screen-height</a>:num <span class="Special">&lt;-</span> <a href='../081print.mu.html#L587'>screen-height</a> <a href='../081print.mu.html#L4'>screen</a>
 <span id="L170" class="LineNr"> 170 </span>  left:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">left:offset</span>
 <span id="L171" class="LineNr"> 171 </span>  right:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">right:offset</span>
-<span id="L172" class="LineNr"> 172 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L172" class="LineNr"> 172 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
 <span id="L173" class="LineNr"> 173 </span>  cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L174" class="LineNr"> 174 </span>  cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
 <span id="L175" class="LineNr"> 175 </span>  save-row:num <span class="Special">&lt;-</span> copy cursor-row
@@ -264,7 +264,7 @@ if ('onhashchange' in window) {
 <span id="L201" class="LineNr"> 201 </span><span class="muRecipe">def</span> <a href='002-typing.mu.html#L201'>insert-at-cursor</a> editor:&amp;:editor, c:char, <a href='../081print.mu.html#L4'>screen</a>:&amp;:<a href='../081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>go-render?:bool, editor:&amp;:editor, <a href='../081print.mu.html#L4'>screen</a>:&amp;:<a href='../081print.mu.html#L4'>screen</a> [
 <span id="L202" class="LineNr"> 202 </span>  <span class="Constant">local-scope</span>
 <span id="L203" class="LineNr"> 203 </span>  <span class="Constant">load-ingredients</span>
-<span id="L204" class="LineNr"> 204 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L204" class="LineNr"> 204 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
 <span id="L205" class="LineNr"> 205 </span>  insert c, before-cursor
 <span id="L206" class="LineNr"> 206 </span>  before-cursor <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L207" class="LineNr"> 207 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">before-cursor:offset</span>, before-cursor
@@ -281,7 +281,7 @@ if ('onhashchange' in window) {
 <span id="L218" class="LineNr"> 218 </span>  <span class="Comment"># but mostly we'll just move the cursor right</span>
 <span id="L219" class="LineNr"> 219 </span>  cursor-column <span class="Special">&lt;-</span> add cursor-column,<span class="Constant"> 1</span>
 <span id="L220" class="LineNr"> 220 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-column:offset</span>, cursor-column
-<span id="L221" class="LineNr"> 221 </span>  <a href='../065duplex_list.mu.html#L29'>next</a>:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L221" class="LineNr"> 221 </span>  <a href='../065duplex_list.mu.html#L29'>next</a>:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L222" class="LineNr"> 222 </span>  <span class="Delimiter">{</span>
 <span id="L223" class="LineNr"> 223 </span>  <span class="Conceal">¦</span> <span class="Comment"># at end of all text? no need to scroll? just print the character and leave</span>
 <span id="L224" class="LineNr"> 224 </span>  <span class="Conceal">¦</span> at-end?:bool <span class="Special">&lt;-</span> equal <a href='../065duplex_list.mu.html#L29'>next</a>, <span class="Constant">0/null</span>
@@ -300,7 +300,7 @@ if ('onhashchange' in window) {
 <span id="L237" class="LineNr"> 237 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='../065duplex_list.mu.html#L29'>next</a>
 <span id="L238" class="LineNr"> 238 </span>  <span class="Conceal">¦</span> at-right?:bool <span class="Special">&lt;-</span> greater-or-equal cursor-column, <a href='../081print.mu.html#L574'>screen-width</a>
 <span id="L239" class="LineNr"> 239 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> at-right?
-<span id="L240" class="LineNr"> 240 </span>  <span class="Conceal">¦</span> curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy before-cursor
+<span id="L240" class="LineNr"> 240 </span>  <span class="Conceal">¦</span> curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy before-cursor
 <span id="L241" class="LineNr"> 241 </span>  <span class="Conceal">¦</span> <a href='../081print.mu.html#L435'>move-cursor</a> <a href='../081print.mu.html#L4'>screen</a>, save-row, save-column
 <span id="L242" class="LineNr"> 242 </span>  <span class="Conceal">¦</span> curr-column:num <span class="Special">&lt;-</span> copy save-column
 <span id="L243" class="LineNr"> 243 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
@@ -760,7 +760,7 @@ if ('onhashchange' in window) {
 <span id="L697" class="LineNr"> 697 </span>  <span class="Conceal">¦</span> before-wrap-column:num <span class="Special">&lt;-</span> subtract wrap-column,<span class="Constant"> 1</span>
 <span id="L698" class="LineNr"> 698 </span>  <span class="Conceal">¦</span> at-wrap?:bool <span class="Special">&lt;-</span> greater-or-equal cursor-column, wrap-column
 <span id="L699" class="LineNr"> 699 </span>  <span class="Conceal">¦</span> just-before-wrap?:bool <span class="Special">&lt;-</span> greater-or-equal cursor-column, before-wrap-column
-<span id="L700" class="LineNr"> 700 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L29'>next</a>:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L700" class="LineNr"> 700 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L29'>next</a>:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L701" class="LineNr"> 701 </span>  <span class="Conceal">¦</span> <span class="Comment"># at end of line? next == 0 || next.value == 10/newline</span>
 <span id="L702" class="LineNr"> 702 </span>  <span class="Conceal">¦</span> at-end-of-line?:bool <span class="Special">&lt;-</span> equal <a href='../065duplex_list.mu.html#L29'>next</a>,<span class="Constant"> 0</span>
 <span id="L703" class="LineNr"> 703 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
@@ -929,7 +929,7 @@ if ('onhashchange' in window) {
 <span id="L866" class="LineNr"> 866 </span>  <span class="Constant">load-ingredients</span>
 <span id="L867" class="LineNr"> 867 </span>  cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L868" class="LineNr"> 868 </span>  cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
-<span id="L869" class="LineNr"> 869 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L869" class="LineNr"> 869 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
 <span id="L870" class="LineNr"> 870 </span>  left:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">left:offset</span>
 <span id="L871" class="LineNr"> 871 </span>  right:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">right:offset</span>
 <span id="L872" class="LineNr"> 872 </span>  <a href='../081print.mu.html#L587'>screen-height</a>:num <span class="Special">&lt;-</span> <a href='../081print.mu.html#L587'>screen-height</a> <a href='../081print.mu.html#L4'>screen</a>
@@ -952,8 +952,8 @@ if ('onhashchange' in window) {
 <span id="L889" class="LineNr"> 889 </span>  <span class="Comment"># indent if necessary</span>
 <span id="L890" class="LineNr"> 890 </span>  indent?:bool <span class="Special">&lt;-</span> get *editor, <span class="Constant">indent?:offset</span>
 <span id="L891" class="LineNr"> 891 </span>  <span class="muControl">return-unless</span> indent?
-<span id="L892" class="LineNr"> 892 </span>  d:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
-<span id="L893" class="LineNr"> 893 </span>  end-of-previous-line:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> before-cursor
+<span id="L892" class="LineNr"> 892 </span>  d:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
+<span id="L893" class="LineNr"> 893 </span>  end-of-previous-line:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> before-cursor
 <span id="L894" class="LineNr"> 894 </span>  indent:num <span class="Special">&lt;-</span> <a href='002-typing.mu.html#L907'>line-indent</a> end-of-previous-line, d
 <span id="L895" class="LineNr"> 895 </span>  i:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
 <span id="L896" class="LineNr"> 896 </span>  <span class="Delimiter">{</span>
@@ -967,7 +967,7 @@ if ('onhashchange' in window) {
 <span id="L904" class="LineNr"> 904 </span>
 <span id="L905" class="LineNr"> 905 </span><span class="Comment"># takes a pointer 'curr' into the doubly-linked list and its sentinel, counts</span>
 <span id="L906" class="LineNr"> 906 </span><span class="Comment"># the number of spaces at the start of the line containing 'curr'.</span>
-<span id="L907" class="LineNr"> 907 </span><span class="muRecipe">def</span> <a href='002-typing.mu.html#L907'>line-indent</a> curr:&amp;:duplex-list:char, start:&amp;:duplex-list:char<span class="muRecipe"> -&gt; </span>result:num [
+<span id="L907" class="LineNr"> 907 </span><span class="muRecipe">def</span> <a href='002-typing.mu.html#L907'>line-indent</a> curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char, start:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char<span class="muRecipe"> -&gt; </span>result:num [
 <span id="L908" class="LineNr"> 908 </span>  <span class="Constant">local-scope</span>
 <span id="L909" class="LineNr"> 909 </span>  <span class="Constant">load-ingredients</span>
 <span id="L910" class="LineNr"> 910 </span>  result:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
diff --git a/html/edit/003-shortcuts.mu.html b/html/edit/003-shortcuts.mu.html
index c1fd5eca..83871010 100644
--- a/html/edit/003-shortcuts.mu.html
+++ b/html/edit/003-shortcuts.mu.html
@@ -133,7 +133,7 @@ if ('onhashchange' in window) {
 <span id="L71" class="LineNr">  71 </span>  <span class="Conceal">¦</span> delete-previous-character?:bool <span class="Special">&lt;-</span> equal c, <span class="Constant">8/backspace</span>
 <span id="L72" class="LineNr">  72 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> delete-previous-character?
 <span id="L73" class="LineNr">  73 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> <a href='003-shortcuts.mu.html#L73'>&lt;backspace-character-begin&gt;</a></span>
-<span id="L74" class="LineNr">  74 </span>  <span class="Conceal">¦</span> go-render?:bool, backspaced-cell:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L83'>delete-before-cursor</a> editor, <a href='../081print.mu.html#L4'>screen</a>
+<span id="L74" class="LineNr">  74 </span>  <span class="Conceal">¦</span> go-render?:bool, backspaced-cell:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L83'>delete-before-cursor</a> editor, <a href='../081print.mu.html#L4'>screen</a>
 <span id="L75" class="LineNr">  75 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> <a href='003-shortcuts.mu.html#L75'>&lt;backspace-character-end&gt;</a></span>
 <span id="L76" class="LineNr">  76 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L77" class="LineNr">  77 </span>  <span class="Delimiter">}</span>
@@ -142,18 +142,18 @@ if ('onhashchange' in window) {
 <span id="L80" class="LineNr">  80 </span><span class="Comment"># return values:</span>
 <span id="L81" class="LineNr">  81 </span><span class="Comment">#   go-render? - whether caller needs to update the screen</span>
 <span id="L82" class="LineNr">  82 </span><span class="Comment">#   backspaced-cell - value deleted (or 0 if nothing was deleted) so we can save it for undo, etc.</span>
-<span id="L83" class="LineNr">  83 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L83'>delete-before-cursor</a> editor:&amp;:editor, <a href='../081print.mu.html#L4'>screen</a>:&amp;:<a href='../081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>go-render?:bool, backspaced-cell:&amp;:duplex-list:char, editor:&amp;:editor, <a href='../081print.mu.html#L4'>screen</a>:&amp;:<a href='../081print.mu.html#L4'>screen</a> [
+<span id="L83" class="LineNr">  83 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L83'>delete-before-cursor</a> editor:&amp;:editor, <a href='../081print.mu.html#L4'>screen</a>:&amp;:<a href='../081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>go-render?:bool, backspaced-cell:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char, editor:&amp;:editor, <a href='../081print.mu.html#L4'>screen</a>:&amp;:<a href='../081print.mu.html#L4'>screen</a> [
 <span id="L84" class="LineNr">  84 </span>  <span class="Constant">local-scope</span>
 <span id="L85" class="LineNr">  85 </span>  <span class="Constant">load-ingredients</span>
-<span id="L86" class="LineNr">  86 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
-<span id="L87" class="LineNr">  87 </span>  data:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
+<span id="L86" class="LineNr">  86 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L87" class="LineNr">  87 </span>  data:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
 <span id="L88" class="LineNr">  88 </span>  <span class="Comment"># if at start of text (before-cursor at § sentinel), return</span>
-<span id="L89" class="LineNr">  89 </span>  <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> before-cursor
+<span id="L89" class="LineNr">  89 </span>  <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> before-cursor
 <span id="L90" class="LineNr">  90 </span>  <span class="muControl">return-unless</span> <a href='../065duplex_list.mu.html#L36'>prev</a>, <span class="Constant">0/no-more-render</span>, <span class="Constant">0/nothing-deleted</span>
 <span id="L91" class="LineNr">  91 </span>  trace<span class="Constant"> 10</span>, <span class="Constant">[app]</span>, <span class="Constant">[delete-before-cursor]</span>
 <span id="L92" class="LineNr">  92 </span>  original-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L93" class="LineNr">  93 </span>  scroll?:bool <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L130'>move-cursor-coordinates-left</a> editor
-<span id="L94" class="LineNr">  94 </span>  backspaced-cell:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy before-cursor
+<span id="L94" class="LineNr">  94 </span>  backspaced-cell:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy before-cursor
 <span id="L95" class="LineNr">  95 </span>  data <span class="Special">&lt;-</span> remove before-cursor, data  <span class="Comment"># will also neatly trim next/prev pointers in backspaced-cell/before-cursor</span>
 <span id="L96" class="LineNr">  96 </span>  before-cursor <span class="Special">&lt;-</span> copy <a href='../065duplex_list.mu.html#L36'>prev</a>
 <span id="L97" class="LineNr">  97 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">before-cursor:offset</span>, before-cursor
@@ -166,7 +166,7 @@ if ('onhashchange' in window) {
 <span id="L104" class="LineNr"> 104 </span>  <span class="muControl">return-unless</span> same-row?, <span class="Constant">1/go-render</span>
 <span id="L105" class="LineNr"> 105 </span>  left:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">left:offset</span>
 <span id="L106" class="LineNr"> 106 </span>  right:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">right:offset</span>
-<span id="L107" class="LineNr"> 107 </span>  curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L107" class="LineNr"> 107 </span>  curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L108" class="LineNr"> 108 </span>  <a href='../081print.mu.html#L4'>screen</a> <span class="Special">&lt;-</span> <a href='../081print.mu.html#L435'>move-cursor</a> <a href='../081print.mu.html#L4'>screen</a>, cursor-row, cursor-column
 <span id="L109" class="LineNr"> 109 </span>  curr-column:num <span class="Special">&lt;-</span> copy cursor-column
 <span id="L110" class="LineNr"> 110 </span>  <span class="Delimiter">{</span>
@@ -193,7 +193,7 @@ if ('onhashchange' in window) {
 <span id="L131" class="LineNr"> 131 </span>  <span class="Constant">local-scope</span>
 <span id="L132" class="LineNr"> 132 </span>  <span class="Constant">load-ingredients</span>
 <span id="L133" class="LineNr"> 133 </span>  go-render?:bool <span class="Special">&lt;-</span> copy <span class="Constant">0/false</span>
-<span id="L134" class="LineNr"> 134 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L134" class="LineNr"> 134 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
 <span id="L135" class="LineNr"> 135 </span>  cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L136" class="LineNr"> 136 </span>  cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
 <span id="L137" class="LineNr"> 137 </span>  left:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">left:offset</span>
@@ -225,7 +225,7 @@ if ('onhashchange' in window) {
 <span id="L163" class="LineNr"> 163 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> previous-character-is-newline?
 <span id="L164" class="LineNr"> 164 </span>  <span class="Conceal">¦</span> <span class="Comment"># compute length of previous line</span>
 <span id="L165" class="LineNr"> 165 </span>  <span class="Conceal">¦</span> trace<span class="Constant"> 10</span>, <span class="Constant">[app]</span>, <span class="Constant">[switching to previous line]</span>
-<span id="L166" class="LineNr"> 166 </span>  <span class="Conceal">¦</span> d:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
+<span id="L166" class="LineNr"> 166 </span>  <span class="Conceal">¦</span> d:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
 <span id="L167" class="LineNr"> 167 </span>  <span class="Conceal">¦</span> end-of-line:num <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L193'>previous-line-length</a> before-cursor, d
 <span id="L168" class="LineNr"> 168 </span>  <span class="Conceal">¦</span> right:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">right:offset</span>
 <span id="L169" class="LineNr"> 169 </span>  <span class="Conceal">¦</span> width:num <span class="Special">&lt;-</span> subtract right, left
@@ -252,7 +252,7 @@ if ('onhashchange' in window) {
 <span id="L190" class="LineNr"> 190 </span>
 <span id="L191" class="LineNr"> 191 </span><span class="Comment"># takes a pointer 'curr' into the doubly-linked list and its sentinel, counts</span>
 <span id="L192" class="LineNr"> 192 </span><span class="Comment"># the length of the previous line before the 'curr' pointer.</span>
-<span id="L193" class="LineNr"> 193 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L193'>previous-line-length</a> curr:&amp;:duplex-list:char, start:&amp;:duplex-list:char<span class="muRecipe"> -&gt; </span>result:num [
+<span id="L193" class="LineNr"> 193 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L193'>previous-line-length</a> curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char, start:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char<span class="muRecipe"> -&gt; </span>result:num [
 <span id="L194" class="LineNr"> 194 </span>  <span class="Constant">local-scope</span>
 <span id="L195" class="LineNr"> 195 </span>  <span class="Constant">load-ingredients</span>
 <span id="L196" class="LineNr"> 196 </span>  result:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
@@ -401,25 +401,25 @@ if ('onhashchange' in window) {
 <span id="L339" class="LineNr"> 339 </span>  <span class="Conceal">¦</span> delete-next-character?:bool <span class="Special">&lt;-</span> equal k, <span class="Constant">65522/delete</span>
 <span id="L340" class="LineNr"> 340 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> delete-next-character?
 <span id="L341" class="LineNr"> 341 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> <a href='003-shortcuts.mu.html#L341'>&lt;delete-character-begin&gt;</a></span>
-<span id="L342" class="LineNr"> 342 </span>  <span class="Conceal">¦</span> go-render?:bool, deleted-cell:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L348'>delete-at-cursor</a> editor, <a href='../081print.mu.html#L4'>screen</a>
+<span id="L342" class="LineNr"> 342 </span>  <span class="Conceal">¦</span> go-render?:bool, deleted-cell:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L348'>delete-at-cursor</a> editor, <a href='../081print.mu.html#L4'>screen</a>
 <span id="L343" class="LineNr"> 343 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> <a href='003-shortcuts.mu.html#L343'>&lt;delete-character-end&gt;</a></span>
 <span id="L344" class="LineNr"> 344 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L345" class="LineNr"> 345 </span>  <span class="Delimiter">}</span>
 <span id="L346" class="LineNr"> 346 </span>]
 <span id="L347" class="LineNr"> 347 </span>
-<span id="L348" class="LineNr"> 348 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L348'>delete-at-cursor</a> editor:&amp;:editor, <a href='../081print.mu.html#L4'>screen</a>:&amp;:<a href='../081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>go-render?:bool, deleted-cell:&amp;:duplex-list:char, editor:&amp;:editor, <a href='../081print.mu.html#L4'>screen</a>:&amp;:<a href='../081print.mu.html#L4'>screen</a> [
+<span id="L348" class="LineNr"> 348 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L348'>delete-at-cursor</a> editor:&amp;:editor, <a href='../081print.mu.html#L4'>screen</a>:&amp;:<a href='../081print.mu.html#L4'>screen</a><span class="muRecipe"> -&gt; </span>go-render?:bool, deleted-cell:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char, editor:&amp;:editor, <a href='../081print.mu.html#L4'>screen</a>:&amp;:<a href='../081print.mu.html#L4'>screen</a> [
 <span id="L349" class="LineNr"> 349 </span>  <span class="Constant">local-scope</span>
 <span id="L350" class="LineNr"> 350 </span>  <span class="Constant">load-ingredients</span>
-<span id="L351" class="LineNr"> 351 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
-<span id="L352" class="LineNr"> 352 </span>  data:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
-<span id="L353" class="LineNr"> 353 </span>  deleted-cell:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L351" class="LineNr"> 351 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L352" class="LineNr"> 352 </span>  data:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
+<span id="L353" class="LineNr"> 353 </span>  deleted-cell:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L354" class="LineNr"> 354 </span>  <span class="muControl">return-unless</span> deleted-cell, <span class="Constant">0/don't-render</span>
 <span id="L355" class="LineNr"> 355 </span>  currc:char <span class="Special">&lt;-</span> get *deleted-cell, <span class="Constant">value:offset</span>
 <span id="L356" class="LineNr"> 356 </span>  data <span class="Special">&lt;-</span> remove deleted-cell, data
 <span id="L357" class="LineNr"> 357 </span>  deleted-newline?:bool <span class="Special">&lt;-</span> equal currc, <span class="Constant">10/newline</span>
 <span id="L358" class="LineNr"> 358 </span>  <span class="muControl">return-if</span> deleted-newline?, <span class="Constant">1/go-render</span>
 <span id="L359" class="LineNr"> 359 </span>  <span class="Comment"># wasn't a newline? render rest of line</span>
-<span id="L360" class="LineNr"> 360 </span>  curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor  <span class="Comment"># refresh after remove above</span>
+<span id="L360" class="LineNr"> 360 </span>  curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor  <span class="Comment"># refresh after remove above</span>
 <span id="L361" class="LineNr"> 361 </span>  cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L362" class="LineNr"> 362 </span>  cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
 <span id="L363" class="LineNr"> 363 </span>  <a href='../081print.mu.html#L4'>screen</a> <span class="Special">&lt;-</span> <a href='../081print.mu.html#L435'>move-cursor</a> <a href='../081print.mu.html#L4'>screen</a>, cursor-row, cursor-column
@@ -474,7 +474,7 @@ if ('onhashchange' in window) {
 <span id="L412" class="LineNr"> 412 </span>  <span class="Conceal">¦</span> move-to-next-character?:bool <span class="Special">&lt;-</span> equal k, <span class="Constant">65514/right-arrow</span>
 <span id="L413" class="LineNr"> 413 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> move-to-next-character?
 <span id="L414" class="LineNr"> 414 </span>  <span class="Conceal">¦</span> <span class="Comment"># if not at end of text</span>
-<span id="L415" class="LineNr"> 415 </span>  <span class="Conceal">¦</span> next-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L415" class="LineNr"> 415 </span>  <span class="Conceal">¦</span> next-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L416" class="LineNr"> 416 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> next-cursor
 <span id="L417" class="LineNr"> 417 </span>  <span class="Conceal">¦</span> <span class="Comment"># scan to next character</span>
 <span id="L418" class="LineNr"> 418 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> &lt;move-cursor-begin&gt;</span>
@@ -491,7 +491,7 @@ if ('onhashchange' in window) {
 <span id="L429" class="LineNr"> 429 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L429'>move-cursor-coordinates-right</a> editor:&amp;:editor, <a href='../081print.mu.html#L587'>screen-height</a>:num<span class="muRecipe"> -&gt; </span>go-render?:bool, editor:&amp;:editor [
 <span id="L430" class="LineNr"> 430 </span>  <span class="Constant">local-scope</span>
 <span id="L431" class="LineNr"> 431 </span>  <span class="Constant">load-ingredients</span>
-<span id="L432" class="LineNr"> 432 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor <span class="Constant">before-cursor:offset</span>
+<span id="L432" class="LineNr"> 432 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor <span class="Constant">before-cursor:offset</span>
 <span id="L433" class="LineNr"> 433 </span>  cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L434" class="LineNr"> 434 </span>  cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
 <span id="L435" class="LineNr"> 435 </span>  left:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">left:offset</span>
@@ -519,7 +519,7 @@ if ('onhashchange' in window) {
 <span id="L457" class="LineNr"> 457 </span>  <span class="Conceal">¦</span> at-wrap?:bool <span class="Special">&lt;-</span> equal cursor-column, wrap-column
 <span id="L458" class="LineNr"> 458 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> at-wrap?
 <span id="L459" class="LineNr"> 459 </span>  <span class="Conceal">¦</span> <span class="Comment"># and if next character isn't newline</span>
-<span id="L460" class="LineNr"> 460 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L29'>next</a>:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L460" class="LineNr"> 460 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L29'>next</a>:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L461" class="LineNr"> 461 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='../065duplex_list.mu.html#L29'>next</a>
 <span id="L462" class="LineNr"> 462 </span>  <span class="Conceal">¦</span> next-character:char <span class="Special">&lt;-</span> get *next, <span class="Constant">value:offset</span>
 <span id="L463" class="LineNr"> 463 </span>  <span class="Conceal">¦</span> newline?:bool <span class="Special">&lt;-</span> equal next-character, <span class="Constant">10/newline</span>
@@ -759,7 +759,7 @@ if ('onhashchange' in window) {
 <span id="L697" class="LineNr"> 697 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> move-to-previous-character?
 <span id="L698" class="LineNr"> 698 </span>  <span class="Conceal">¦</span> trace<span class="Constant"> 10</span>, <span class="Constant">[app]</span>, <span class="Constant">[left arrow]</span>
 <span id="L699" class="LineNr"> 699 </span>  <span class="Conceal">¦</span> <span class="Comment"># if not at start of text (before-cursor at § sentinel)</span>
-<span id="L700" class="LineNr"> 700 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> before-cursor
+<span id="L700" class="LineNr"> 700 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> before-cursor
 <span id="L701" class="LineNr"> 701 </span>  <span class="Conceal">¦</span> <span class="muControl">return-unless</span> <a href='../065duplex_list.mu.html#L36'>prev</a>, <span class="Constant">0/don't-render</span>
 <span id="L702" class="LineNr"> 702 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> &lt;move-cursor-begin&gt;</span>
 <span id="L703" class="LineNr"> 703 </span>  <span class="Conceal">¦</span> go-render? <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L130'>move-cursor-coordinates-left</a> editor
@@ -1041,7 +1041,7 @@ if ('onhashchange' in window) {
 <span id="L979" class="LineNr"> 979 </span>  go-render?:bool <span class="Special">&lt;-</span> copy <span class="Constant">0/false</span>
 <span id="L980" class="LineNr"> 980 </span>  cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L981" class="LineNr"> 981 </span>  cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
-<span id="L982" class="LineNr"> 982 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L982" class="LineNr"> 982 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
 <span id="L983" class="LineNr"> 983 </span>  left:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">left:offset</span>
 <span id="L984" class="LineNr"> 984 </span>  right:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">right:offset</span>
 <span id="L985" class="LineNr"> 985 </span>  already-at-top?:bool <span class="Special">&lt;-</span> lesser-or-equal cursor-row, <span class="Constant">1/top</span>
@@ -1051,13 +1051,13 @@ if ('onhashchange' in window) {
 <span id="L989" class="LineNr"> 989 </span>  <span class="Conceal">¦</span> <span class="Comment"># if not at newline, move to start of line (previous newline)</span>
 <span id="L990" class="LineNr"> 990 </span>  <span class="Conceal">¦</span> <span class="Comment"># then scan back another line</span>
 <span id="L991" class="LineNr"> 991 </span>  <span class="Conceal">¦</span> <span class="Comment"># if either step fails, give up without modifying cursor or coordinates</span>
-<span id="L992" class="LineNr"> 992 </span>  <span class="Conceal">¦</span> curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy before-cursor
+<span id="L992" class="LineNr"> 992 </span>  <span class="Conceal">¦</span> curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy before-cursor
 <span id="L993" class="LineNr"> 993 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
-<span id="L994" class="LineNr"> 994 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> old:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy curr
+<span id="L994" class="LineNr"> 994 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> old:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy curr
 <span id="L995" class="LineNr"> 995 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> c2:char <span class="Special">&lt;-</span> get *curr, <span class="Constant">value:offset</span>
 <span id="L996" class="LineNr"> 996 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> at-newline?:bool <span class="Special">&lt;-</span> equal c2, <span class="Constant">10/newline</span>
 <span id="L997" class="LineNr"> 997 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> at-newline?
-<span id="L998" class="LineNr"> 998 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L2367'>before-previous-line</a> curr, editor
+<span id="L998" class="LineNr"> 998 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L2367'>before-previous-line</a> curr, editor
 <span id="L999" class="LineNr"> 999 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> no-motion?:bool <span class="Special">&lt;-</span> equal curr, old
 <span id="L1000" class="LineNr">1000 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">return-if</span> no-motion?
 <span id="L1001" class="LineNr">1001 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
@@ -1078,7 +1078,7 @@ if ('onhashchange' in window) {
 <span id="L1016" class="LineNr">1016 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
 <span id="L1017" class="LineNr">1017 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> greater-or-equal cursor-column, target-column
 <span id="L1018" class="LineNr">1018 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
-<span id="L1019" class="LineNr">1019 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L1019" class="LineNr">1019 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L1020" class="LineNr">1020 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> curr
 <span id="L1021" class="LineNr">1021 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> currc:char <span class="Special">&lt;-</span> get *curr, <span class="Constant">value:offset</span>
 <span id="L1022" class="LineNr">1022 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> at-newline?:bool <span class="Special">&lt;-</span> equal currc, <span class="Constant">10/newline</span>
@@ -1271,7 +1271,7 @@ if ('onhashchange' in window) {
 <span id="L1209" class="LineNr">1209 </span>  <span class="Constant">load-ingredients</span>
 <span id="L1210" class="LineNr">1210 </span>  cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L1211" class="LineNr">1211 </span>  cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
-<span id="L1212" class="LineNr">1212 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L1212" class="LineNr">1212 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
 <span id="L1213" class="LineNr">1213 </span>  left:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">left:offset</span>
 <span id="L1214" class="LineNr">1214 </span>  right:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">right:offset</span>
 <span id="L1215" class="LineNr">1215 </span>  last-line:num <span class="Special">&lt;-</span> subtract <a href='../081print.mu.html#L587'>screen-height</a>,<span class="Constant"> 1</span>
@@ -1281,7 +1281,7 @@ if ('onhashchange' in window) {
 <span id="L1219" class="LineNr">1219 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> already-at-bottom?
 <span id="L1220" class="LineNr">1220 </span>  <span class="Conceal">¦</span> <span class="Comment"># scan to start of next line, then to right column or until end of line</span>
 <span id="L1221" class="LineNr">1221 </span>  <span class="Conceal">¦</span> max:num <span class="Special">&lt;-</span> subtract right, left
-<span id="L1222" class="LineNr">1222 </span>  <span class="Conceal">¦</span> next-line:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L1988'>before-start-of-next-line</a> before-cursor, max
+<span id="L1222" class="LineNr">1222 </span>  <span class="Conceal">¦</span> next-line:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L1988'>before-start-of-next-line</a> before-cursor, max
 <span id="L1223" class="LineNr">1223 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
 <span id="L1224" class="LineNr">1224 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># already at end of buffer? try to scroll up (so we can see more</span>
 <span id="L1225" class="LineNr">1225 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># warnings or sandboxes below)</span>
@@ -1301,7 +1301,7 @@ if ('onhashchange' in window) {
 <span id="L1239" class="LineNr">1239 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
 <span id="L1240" class="LineNr">1240 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> greater-or-equal cursor-column, target-column
 <span id="L1241" class="LineNr">1241 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
-<span id="L1242" class="LineNr">1242 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L1242" class="LineNr">1242 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L1243" class="LineNr">1243 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> curr
 <span id="L1244" class="LineNr">1244 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> currc:char <span class="Special">&lt;-</span> get *curr, <span class="Constant">value:offset</span>
 <span id="L1245" class="LineNr">1245 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> at-newline?:bool <span class="Special">&lt;-</span> equal currc, <span class="Constant">10/newline</span>
@@ -1417,8 +1417,8 @@ if ('onhashchange' in window) {
 <span id="L1355" class="LineNr">1355 </span>  cursor-column:num <span class="Special">&lt;-</span> copy left
 <span id="L1356" class="LineNr">1356 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-column:offset</span>, cursor-column
 <span id="L1357" class="LineNr">1357 </span>  <span class="Comment"># update before-cursor</span>
-<span id="L1358" class="LineNr">1358 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
-<span id="L1359" class="LineNr">1359 </span>  init:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
+<span id="L1358" class="LineNr">1358 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L1359" class="LineNr">1359 </span>  init:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
 <span id="L1360" class="LineNr">1360 </span>  <span class="Comment"># while not at start of line, move</span>
 <span id="L1361" class="LineNr">1361 </span>  <span class="Delimiter">{</span>
 <span id="L1362" class="LineNr">1362 </span>  <span class="Conceal">¦</span> at-start-of-text?:bool <span class="Special">&lt;-</span> equal before-cursor, init
@@ -1586,11 +1586,11 @@ if ('onhashchange' in window) {
 <span id="L1524" class="LineNr">1524 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L1524'>move-to-end-of-line</a> editor:&amp;:editor<span class="muRecipe"> -&gt; </span>editor:&amp;:editor [
 <span id="L1525" class="LineNr">1525 </span>  <span class="Constant">local-scope</span>
 <span id="L1526" class="LineNr">1526 </span>  <span class="Constant">load-ingredients</span>
-<span id="L1527" class="LineNr">1527 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L1527" class="LineNr">1527 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
 <span id="L1528" class="LineNr">1528 </span>  cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
 <span id="L1529" class="LineNr">1529 </span>  <span class="Comment"># while not at start of line, move</span>
 <span id="L1530" class="LineNr">1530 </span>  <span class="Delimiter">{</span>
-<span id="L1531" class="LineNr">1531 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L29'>next</a>:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L1531" class="LineNr">1531 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L29'>next</a>:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L1532" class="LineNr">1532 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='../065duplex_list.mu.html#L29'>next</a>  <span class="Comment"># end of text</span>
 <span id="L1533" class="LineNr">1533 </span>  <span class="Conceal">¦</span> nextc:char <span class="Special">&lt;-</span> get *next, <span class="Constant">value:offset</span>
 <span id="L1534" class="LineNr">1534 </span>  <span class="Conceal">¦</span> at-end-of-line?:bool <span class="Special">&lt;-</span> equal nextc, <span class="Constant">10/newline</span>
@@ -1712,20 +1712,20 @@ if ('onhashchange' in window) {
 <span id="L1650" class="LineNr">1650 </span>  <span class="Conceal">¦</span> delete-to-start-of-line?:bool <span class="Special">&lt;-</span> equal c, <span class="Constant">21/ctrl-u</span>
 <span id="L1651" class="LineNr">1651 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> delete-to-start-of-line?
 <span id="L1652" class="LineNr">1652 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> <a href='003-shortcuts.mu.html#L1652'>&lt;delete-to-start-of-line-begin&gt;</a></span>
-<span id="L1653" class="LineNr">1653 </span>  <span class="Conceal">¦</span> deleted-cells:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L1659'>delete-to-start-of-line</a> editor
+<span id="L1653" class="LineNr">1653 </span>  <span class="Conceal">¦</span> deleted-cells:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L1659'>delete-to-start-of-line</a> editor
 <span id="L1654" class="LineNr">1654 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> <a href='003-shortcuts.mu.html#L1654'>&lt;delete-to-start-of-line-end&gt;</a></span>
 <span id="L1655" class="LineNr">1655 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span> <span class="Constant">1/go-render</span>
 <span id="L1656" class="LineNr">1656 </span>  <span class="Delimiter">}</span>
 <span id="L1657" class="LineNr">1657 </span>]
 <span id="L1658" class="LineNr">1658 </span>
-<span id="L1659" class="LineNr">1659 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L1659'>delete-to-start-of-line</a> editor:&amp;:editor<span class="muRecipe"> -&gt; </span>result:&amp;:duplex-list:char, editor:&amp;:editor [
+<span id="L1659" class="LineNr">1659 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L1659'>delete-to-start-of-line</a> editor:&amp;:editor<span class="muRecipe"> -&gt; </span>result:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char, editor:&amp;:editor [
 <span id="L1660" class="LineNr">1660 </span>  <span class="Constant">local-scope</span>
 <span id="L1661" class="LineNr">1661 </span>  <span class="Constant">load-ingredients</span>
 <span id="L1662" class="LineNr">1662 </span>  <span class="Comment"># compute range to delete</span>
-<span id="L1663" class="LineNr">1663 </span>  init:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
-<span id="L1664" class="LineNr">1664 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
-<span id="L1665" class="LineNr">1665 </span>  start:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy before-cursor
-<span id="L1666" class="LineNr">1666 </span>  end:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L1663" class="LineNr">1663 </span>  init:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
+<span id="L1664" class="LineNr">1664 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L1665" class="LineNr">1665 </span>  start:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy before-cursor
+<span id="L1666" class="LineNr">1666 </span>  end:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L1667" class="LineNr">1667 </span>  <span class="Delimiter">{</span>
 <span id="L1668" class="LineNr">1668 </span>  <span class="Conceal">¦</span> at-start-of-text?:bool <span class="Special">&lt;-</span> equal start, init
 <span id="L1669" class="LineNr">1669 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> at-start-of-text?
@@ -1737,7 +1737,7 @@ if ('onhashchange' in window) {
 <span id="L1675" class="LineNr">1675 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L1676" class="LineNr">1676 </span>  <span class="Delimiter">}</span>
 <span id="L1677" class="LineNr">1677 </span>  <span class="Comment"># snip it out</span>
-<span id="L1678" class="LineNr">1678 </span>  result:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> start
+<span id="L1678" class="LineNr">1678 </span>  result:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> start
 <span id="L1679" class="LineNr">1679 </span>  <a href='../065duplex_list.mu.html#L357'>remove-between</a> start, end
 <span id="L1680" class="LineNr">1680 </span>  <span class="Comment"># adjust cursor</span>
 <span id="L1681" class="LineNr">1681 </span>  before-cursor <span class="Special">&lt;-</span> copy start
@@ -1849,18 +1849,18 @@ if ('onhashchange' in window) {
 <span id="L1787" class="LineNr">1787 </span>  <span class="Conceal">¦</span> delete-to-end-of-line?:bool <span class="Special">&lt;-</span> equal c, <span class="Constant">11/ctrl-k</span>
 <span id="L1788" class="LineNr">1788 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> delete-to-end-of-line?
 <span id="L1789" class="LineNr">1789 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> <a href='003-shortcuts.mu.html#L1789'>&lt;delete-to-end-of-line-begin&gt;</a></span>
-<span id="L1790" class="LineNr">1790 </span>  <span class="Conceal">¦</span> deleted-cells:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L1796'>delete-to-end-of-line</a> editor
+<span id="L1790" class="LineNr">1790 </span>  <span class="Conceal">¦</span> deleted-cells:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L1796'>delete-to-end-of-line</a> editor
 <span id="L1791" class="LineNr">1791 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> <a href='003-shortcuts.mu.html#L1791'>&lt;delete-to-end-of-line-end&gt;</a></span>
 <span id="L1792" class="LineNr">1792 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span> <span class="Constant">1/go-render</span>
 <span id="L1793" class="LineNr">1793 </span>  <span class="Delimiter">}</span>
 <span id="L1794" class="LineNr">1794 </span>]
 <span id="L1795" class="LineNr">1795 </span>
-<span id="L1796" class="LineNr">1796 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L1796'>delete-to-end-of-line</a> editor:&amp;:editor<span class="muRecipe"> -&gt; </span>result:&amp;:duplex-list:char, editor:&amp;:editor [
+<span id="L1796" class="LineNr">1796 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L1796'>delete-to-end-of-line</a> editor:&amp;:editor<span class="muRecipe"> -&gt; </span>result:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char, editor:&amp;:editor [
 <span id="L1797" class="LineNr">1797 </span>  <span class="Constant">local-scope</span>
 <span id="L1798" class="LineNr">1798 </span>  <span class="Constant">load-ingredients</span>
 <span id="L1799" class="LineNr">1799 </span>  <span class="Comment"># compute range to delete</span>
-<span id="L1800" class="LineNr">1800 </span>  start:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
-<span id="L1801" class="LineNr">1801 </span>  end:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> start
+<span id="L1800" class="LineNr">1800 </span>  start:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L1801" class="LineNr">1801 </span>  end:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> start
 <span id="L1802" class="LineNr">1802 </span>  <span class="Delimiter">{</span>
 <span id="L1803" class="LineNr">1803 </span>  <span class="Conceal">¦</span> at-end-of-text?:bool <span class="Special">&lt;-</span> equal end, <span class="Constant">0/null</span>
 <span id="L1804" class="LineNr">1804 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> at-end-of-text?
@@ -2033,11 +2033,11 @@ if ('onhashchange' in window) {
 <span id="L1971" class="LineNr">1971 </span>
 <span id="L1972" class="LineNr">1972 </span><span class="muRecipe">after</span> <span class="Constant">&lt;scroll-down&gt;</span> [
 <span id="L1973" class="LineNr">1973 </span>  trace<span class="Constant"> 10</span>, <span class="Constant">[app]</span>, <span class="Constant">[scroll down]</span>
-<span id="L1974" class="LineNr">1974 </span>  top-of-screen:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L1974" class="LineNr">1974 </span>  top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L1975" class="LineNr">1975 </span>  left:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">left:offset</span>
 <span id="L1976" class="LineNr">1976 </span>  right:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">right:offset</span>
 <span id="L1977" class="LineNr">1977 </span>  max:num <span class="Special">&lt;-</span> subtract right, left
-<span id="L1978" class="LineNr">1978 </span>  old-top:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy top-of-screen
+<span id="L1978" class="LineNr">1978 </span>  old-top:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy top-of-screen
 <span id="L1979" class="LineNr">1979 </span>  top-of-screen <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L1988'>before-start-of-next-line</a> top-of-screen, max
 <span id="L1980" class="LineNr">1980 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">top-of-screen:offset</span>, top-of-screen
 <span id="L1981" class="LineNr">1981 </span>  no-movement?:bool <span class="Special">&lt;-</span> equal old-top, top-of-screen
@@ -2047,11 +2047,11 @@ if ('onhashchange' in window) {
 <span id="L1985" class="LineNr">1985 </span><span class="Comment"># takes a pointer into the doubly-linked list, scans ahead at most 'max'</span>
 <span id="L1986" class="LineNr">1986 </span><span class="Comment"># positions until the next newline</span>
 <span id="L1987" class="LineNr">1987 </span><span class="Comment"># beware: never return null pointer.</span>
-<span id="L1988" class="LineNr">1988 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L1988'>before-start-of-next-line</a> original:&amp;:duplex-list:char, max:num<span class="muRecipe"> -&gt; </span>curr:&amp;:duplex-list:char [
+<span id="L1988" class="LineNr">1988 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L1988'>before-start-of-next-line</a> original:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char, max:num<span class="muRecipe"> -&gt; </span>curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char [
 <span id="L1989" class="LineNr">1989 </span>  <span class="Constant">local-scope</span>
 <span id="L1990" class="LineNr">1990 </span>  <span class="Constant">load-ingredients</span>
 <span id="L1991" class="LineNr">1991 </span>  count:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
-<span id="L1992" class="LineNr">1992 </span>  curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy original
+<span id="L1992" class="LineNr">1992 </span>  curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy original
 <span id="L1993" class="LineNr">1993 </span>  <span class="Comment"># skip the initial newline if it exists</span>
 <span id="L1994" class="LineNr">1994 </span>  <span class="Delimiter">{</span>
 <span id="L1995" class="LineNr">1995 </span>  <span class="Conceal">¦</span> c:char <span class="Special">&lt;-</span> get *curr, <span class="Constant">value:offset</span>
@@ -2415,8 +2415,8 @@ if ('onhashchange' in window) {
 <span id="L2353" class="LineNr">2353 </span>
 <span id="L2354" class="LineNr">2354 </span><span class="muRecipe">after</span> <span class="Constant">&lt;scroll-up&gt;</span> [
 <span id="L2355" class="LineNr">2355 </span>  trace<span class="Constant"> 10</span>, <span class="Constant">[app]</span>, <span class="Constant">[scroll up]</span>
-<span id="L2356" class="LineNr">2356 </span>  top-of-screen:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
-<span id="L2357" class="LineNr">2357 </span>  old-top:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy top-of-screen
+<span id="L2356" class="LineNr">2356 </span>  top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L2357" class="LineNr">2357 </span>  old-top:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy top-of-screen
 <span id="L2358" class="LineNr">2358 </span>  top-of-screen <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L2367'>before-previous-line</a> top-of-screen, editor
 <span id="L2359" class="LineNr">2359 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">top-of-screen:offset</span>, top-of-screen
 <span id="L2360" class="LineNr">2360 </span>  no-movement?:bool <span class="Special">&lt;-</span> equal old-top, top-of-screen
@@ -2426,10 +2426,10 @@ if ('onhashchange' in window) {
 <span id="L2364" class="LineNr">2364 </span><span class="Comment"># takes a pointer into the doubly-linked list, scans back to before start of</span>
 <span id="L2365" class="LineNr">2365 </span><span class="Comment"># previous *wrapped* line</span>
 <span id="L2366" class="LineNr">2366 </span><span class="Comment"># beware: never return null pointer</span>
-<span id="L2367" class="LineNr">2367 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L2367'>before-previous-line</a> in:&amp;:duplex-list:char, editor:&amp;:editor<span class="muRecipe"> -&gt; </span>out:&amp;:duplex-list:char [
+<span id="L2367" class="LineNr">2367 </span><span class="muRecipe">def</span> <a href='003-shortcuts.mu.html#L2367'>before-previous-line</a> in:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char, editor:&amp;:editor<span class="muRecipe"> -&gt; </span>out:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char [
 <span id="L2368" class="LineNr">2368 </span>  <span class="Constant">local-scope</span>
 <span id="L2369" class="LineNr">2369 </span>  <span class="Constant">load-ingredients</span>
-<span id="L2370" class="LineNr">2370 </span>  curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy in
+<span id="L2370" class="LineNr">2370 </span>  curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy in
 <span id="L2371" class="LineNr">2371 </span>  c:char <span class="Special">&lt;-</span> get *curr, <span class="Constant">value:offset</span>
 <span id="L2372" class="LineNr">2372 </span>  <span class="Comment"># compute max, number of characters to skip</span>
 <span id="L2373" class="LineNr">2373 </span>  <span class="Comment">#   1 + len%(width-1)</span>
@@ -2437,12 +2437,12 @@ if ('onhashchange' in window) {
 <span id="L2375" class="LineNr">2375 </span>  left:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">left:offset</span>
 <span id="L2376" class="LineNr">2376 </span>  right:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">right:offset</span>
 <span id="L2377" class="LineNr">2377 </span>  max-line-length:num <span class="Special">&lt;-</span> subtract right, left, <span class="Constant">-1/exclusive-right</span>, <span class="Constant">1/wrap-icon</span>
-<span id="L2378" class="LineNr">2378 </span>  sentinel:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
+<span id="L2378" class="LineNr">2378 </span>  sentinel:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
 <span id="L2379" class="LineNr">2379 </span>  len:num <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L193'>previous-line-length</a> curr, sentinel
 <span id="L2380" class="LineNr">2380 </span>  <span class="Delimiter">{</span>
 <span id="L2381" class="LineNr">2381 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> len
 <span id="L2382" class="LineNr">2382 </span>  <span class="Conceal">¦</span> <span class="Comment"># empty line; just skip this newline</span>
-<span id="L2383" class="LineNr">2383 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> curr
+<span id="L2383" class="LineNr">2383 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> curr
 <span id="L2384" class="LineNr">2384 </span>  <span class="Conceal">¦</span> <span class="muControl">return-unless</span> <a href='../065duplex_list.mu.html#L36'>prev</a>, curr
 <span id="L2385" class="LineNr">2385 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span> <a href='../065duplex_list.mu.html#L36'>prev</a>
 <span id="L2386" class="LineNr">2386 </span>  <span class="Delimiter">}</span>
@@ -2458,7 +2458,7 @@ if ('onhashchange' in window) {
 <span id="L2396" class="LineNr">2396 </span>  <span class="Delimiter">{</span>
 <span id="L2397" class="LineNr">2397 </span>  <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> greater-or-equal count, max
 <span id="L2398" class="LineNr">2398 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
-<span id="L2399" class="LineNr">2399 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> curr
+<span id="L2399" class="LineNr">2399 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> curr
 <span id="L2400" class="LineNr">2400 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='../065duplex_list.mu.html#L36'>prev</a>
 <span id="L2401" class="LineNr">2401 </span>  <span class="Conceal">¦</span> curr <span class="Special">&lt;-</span> copy <a href='../065duplex_list.mu.html#L36'>prev</a>
 <span id="L2402" class="LineNr">2402 </span>  <span class="Conceal">¦</span> count <span class="Special">&lt;-</span> add count,<span class="Constant"> 1</span>
@@ -2820,12 +2820,12 @@ if ('onhashchange' in window) {
 <span id="L2758" class="LineNr">2758 </span>  <span class="Delimiter">{</span>
 <span id="L2759" class="LineNr">2759 </span>  <span class="Conceal">¦</span> page-down?:bool <span class="Special">&lt;-</span> equal c, <span class="Constant">6/ctrl-f</span>
 <span id="L2760" class="LineNr">2760 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> page-down?
-<span id="L2761" class="LineNr">2761 </span>  <span class="Conceal">¦</span> old-top:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L2761" class="LineNr">2761 </span>  <span class="Conceal">¦</span> old-top:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L2762" class="LineNr">2762 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> &lt;move-cursor-begin&gt;</span>
 <span id="L2763" class="LineNr">2763 </span>  <span class="Conceal">¦</span> <a href='003-shortcuts.mu.html#L2789'>page-down</a> editor
 <span id="L2764" class="LineNr">2764 </span>  <span class="Conceal">¦</span> undo-coalesce-tag:num <span class="Special">&lt;-</span> copy <span class="Constant">0/never</span>
 <span id="L2765" class="LineNr">2765 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> &lt;move-cursor-end&gt;</span>
-<span id="L2766" class="LineNr">2766 </span>  <span class="Conceal">¦</span> top-of-screen:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L2766" class="LineNr">2766 </span>  <span class="Conceal">¦</span> top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L2767" class="LineNr">2767 </span>  <span class="Conceal">¦</span> movement?:bool <span class="Special">&lt;-</span> not-equal top-of-screen, old-top
 <span id="L2768" class="LineNr">2768 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span> movement?/go-render
 <span id="L2769" class="LineNr">2769 </span>  <span class="Delimiter">}</span>
@@ -2835,12 +2835,12 @@ if ('onhashchange' in window) {
 <span id="L2773" class="LineNr">2773 </span>  <span class="Delimiter">{</span>
 <span id="L2774" class="LineNr">2774 </span>  <span class="Conceal">¦</span> page-down?:bool <span class="Special">&lt;-</span> equal k, <span class="Constant">65518/page-down</span>
 <span id="L2775" class="LineNr">2775 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> page-down?
-<span id="L2776" class="LineNr">2776 </span>  <span class="Conceal">¦</span> old-top:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L2776" class="LineNr">2776 </span>  <span class="Conceal">¦</span> old-top:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L2777" class="LineNr">2777 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> &lt;move-cursor-begin&gt;</span>
 <span id="L2778" class="LineNr">2778 </span>  <span class="Conceal">¦</span> <a href='003-shortcuts.mu.html#L2789'>page-down</a> editor
 <span id="L2779" class="LineNr">2779 </span>  <span class="Conceal">¦</span> undo-coalesce-tag:num <span class="Special">&lt;-</span> copy <span class="Constant">0/never</span>
 <span id="L2780" class="LineNr">2780 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> &lt;move-cursor-end&gt;</span>
-<span id="L2781" class="LineNr">2781 </span>  <span class="Conceal">¦</span> top-of-screen:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L2781" class="LineNr">2781 </span>  <span class="Conceal">¦</span> top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L2782" class="LineNr">2782 </span>  <span class="Conceal">¦</span> movement?:bool <span class="Special">&lt;-</span> not-equal top-of-screen, old-top
 <span id="L2783" class="LineNr">2783 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span> movement?/go-render
 <span id="L2784" class="LineNr">2784 </span>  <span class="Delimiter">}</span>
@@ -2852,11 +2852,11 @@ if ('onhashchange' in window) {
 <span id="L2790" class="LineNr">2790 </span>  <span class="Constant">local-scope</span>
 <span id="L2791" class="LineNr">2791 </span>  <span class="Constant">load-ingredients</span>
 <span id="L2792" class="LineNr">2792 </span>  <span class="Comment"># if editor contents don't overflow screen, do nothing</span>
-<span id="L2793" class="LineNr">2793 </span>  bottom-of-screen:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">bottom-of-screen:offset</span>
+<span id="L2793" class="LineNr">2793 </span>  bottom-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">bottom-of-screen:offset</span>
 <span id="L2794" class="LineNr">2794 </span>  <span class="muControl">return-unless</span> bottom-of-screen
 <span id="L2795" class="LineNr">2795 </span>  <span class="Comment"># if not, position cursor at final character</span>
-<span id="L2796" class="LineNr">2796 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
-<span id="L2797" class="LineNr">2797 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> bottom-of-screen
+<span id="L2796" class="LineNr">2796 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L2797" class="LineNr">2797 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> bottom-of-screen
 <span id="L2798" class="LineNr">2798 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">before-cursor:offset</span>, before-cursor
 <span id="L2799" class="LineNr">2799 </span>  <span class="Comment"># keep one line in common with previous page</span>
 <span id="L2800" class="LineNr">2800 </span>  <span class="Delimiter">{</span>
@@ -3019,12 +3019,12 @@ if ('onhashchange' in window) {
 <span id="L2957" class="LineNr">2957 </span>  <span class="Delimiter">{</span>
 <span id="L2958" class="LineNr">2958 </span>  <span class="Conceal">¦</span> page-up?:bool <span class="Special">&lt;-</span> equal c, <span class="Constant">2/ctrl-b</span>
 <span id="L2959" class="LineNr">2959 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> page-up?
-<span id="L2960" class="LineNr">2960 </span>  <span class="Conceal">¦</span> old-top:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L2960" class="LineNr">2960 </span>  <span class="Conceal">¦</span> old-top:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L2961" class="LineNr">2961 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> &lt;move-cursor-begin&gt;</span>
 <span id="L2962" class="LineNr">2962 </span>  <span class="Conceal">¦</span> editor <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L2987'>page-up</a> editor, <a href='../081print.mu.html#L587'>screen-height</a>
 <span id="L2963" class="LineNr">2963 </span>  <span class="Conceal">¦</span> undo-coalesce-tag:num <span class="Special">&lt;-</span> copy <span class="Constant">0/never</span>
 <span id="L2964" class="LineNr">2964 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> &lt;move-cursor-end&gt;</span>
-<span id="L2965" class="LineNr">2965 </span>  <span class="Conceal">¦</span> top-of-screen:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L2965" class="LineNr">2965 </span>  <span class="Conceal">¦</span> top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L2966" class="LineNr">2966 </span>  <span class="Conceal">¦</span> movement?:bool <span class="Special">&lt;-</span> not-equal top-of-screen, old-top
 <span id="L2967" class="LineNr">2967 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span> movement?/go-render
 <span id="L2968" class="LineNr">2968 </span>  <span class="Delimiter">}</span>
@@ -3034,12 +3034,12 @@ if ('onhashchange' in window) {
 <span id="L2972" class="LineNr">2972 </span>  <span class="Delimiter">{</span>
 <span id="L2973" class="LineNr">2973 </span>  <span class="Conceal">¦</span> page-up?:bool <span class="Special">&lt;-</span> equal k, <span class="Constant">65519/page-up</span>
 <span id="L2974" class="LineNr">2974 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> page-up?
-<span id="L2975" class="LineNr">2975 </span>  <span class="Conceal">¦</span> old-top:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L2975" class="LineNr">2975 </span>  <span class="Conceal">¦</span> old-top:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L2976" class="LineNr">2976 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> &lt;move-cursor-begin&gt;</span>
 <span id="L2977" class="LineNr">2977 </span>  <span class="Conceal">¦</span> editor <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L2987'>page-up</a> editor, <a href='../081print.mu.html#L587'>screen-height</a>
 <span id="L2978" class="LineNr">2978 </span>  <span class="Conceal">¦</span> undo-coalesce-tag:num <span class="Special">&lt;-</span> copy <span class="Constant">0/never</span>
 <span id="L2979" class="LineNr">2979 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> &lt;move-cursor-end&gt;</span>
-<span id="L2980" class="LineNr">2980 </span>  <span class="Conceal">¦</span> top-of-screen:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L2980" class="LineNr">2980 </span>  <span class="Conceal">¦</span> top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L2981" class="LineNr">2981 </span>  <span class="Conceal">¦</span> movement?:bool <span class="Special">&lt;-</span> not-equal top-of-screen, old-top
 <span id="L2982" class="LineNr">2982 </span>  <span class="Conceal">¦</span> <span class="Comment"># don't bother re-rendering if nothing changed. todo: test this</span>
 <span id="L2983" class="LineNr">2983 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span> movement?/go-render
@@ -3051,11 +3051,11 @@ if ('onhashchange' in window) {
 <span id="L2989" class="LineNr">2989 </span>  <span class="Constant">load-ingredients</span>
 <span id="L2990" class="LineNr">2990 </span>  max:num <span class="Special">&lt;-</span> subtract <a href='../081print.mu.html#L587'>screen-height</a>, <span class="Constant">1/menu-bar</span>, <span class="Constant">1/overlapping-line</span>
 <span id="L2991" class="LineNr">2991 </span>  count:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
-<span id="L2992" class="LineNr">2992 </span>  top-of-screen:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L2992" class="LineNr">2992 </span>  top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L2993" class="LineNr">2993 </span>  <span class="Delimiter">{</span>
 <span id="L2994" class="LineNr">2994 </span>  <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> greater-or-equal count, max
 <span id="L2995" class="LineNr">2995 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
-<span id="L2996" class="LineNr">2996 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L2367'>before-previous-line</a> top-of-screen, editor
+<span id="L2996" class="LineNr">2996 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='003-shortcuts.mu.html#L2367'>before-previous-line</a> top-of-screen, editor
 <span id="L2997" class="LineNr">2997 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='../065duplex_list.mu.html#L36'>prev</a>
 <span id="L2998" class="LineNr">2998 </span>  <span class="Conceal">¦</span> top-of-screen <span class="Special">&lt;-</span> copy <a href='../065duplex_list.mu.html#L36'>prev</a>
 <span id="L2999" class="LineNr">2999 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">top-of-screen:offset</span>, top-of-screen
diff --git a/html/edit/004-programming-environment.mu.html b/html/edit/004-programming-environment.mu.html
index 639825f9..2aeba796 100644
--- a/html/edit/004-programming-environment.mu.html
+++ b/html/edit/004-programming-environment.mu.html
@@ -257,19 +257,19 @@ if ('onhashchange' in window) {
 <span id="L194" class="LineNr">194 </span>  left:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">left:offset</span>
 <span id="L195" class="LineNr">195 </span>  <a href='../081print.mu.html#L587'>screen-height</a>:num <span class="Special">&lt;-</span> <a href='../081print.mu.html#L587'>screen-height</a> <a href='../081print.mu.html#L4'>screen</a>
 <span id="L196" class="LineNr">196 </span>  right:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">right:offset</span>
-<span id="L197" class="LineNr">197 </span>  curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
-<span id="L198" class="LineNr">198 </span>  <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:duplex-list:char <span class="Special">&lt;-</span> copy curr  <span class="Comment"># just in case curr becomes null and we can't compute prev</span>
+<span id="L197" class="LineNr">197 </span>  curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L198" class="LineNr">198 </span>  <a href='../065duplex_list.mu.html#L36'>prev</a>:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> copy curr  <span class="Comment"># just in case curr becomes null and we can't compute prev</span>
 <span id="L199" class="LineNr">199 </span>  curr <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> curr
 <span id="L200" class="LineNr">200 </span>  color:num <span class="Special">&lt;-</span> copy <span class="Constant">7/white</span>
 <span id="L201" class="LineNr">201 </span>  row:num <span class="Special">&lt;-</span> copy <span class="Constant">1/top</span>
 <span id="L202" class="LineNr">202 </span>  column:num <span class="Special">&lt;-</span> copy left
 <span id="L203" class="LineNr">203 </span>  <span class="Comment"># save before-cursor</span>
-<span id="L204" class="LineNr">204 </span>  old-before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L204" class="LineNr">204 </span>  old-before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
 <span id="L205" class="LineNr">205 </span>  <span class="Comment"># initialze cursor-row/cursor-column/before-cursor to the top of the screen</span>
 <span id="L206" class="LineNr">206 </span>  <span class="Comment"># by default</span>
 <span id="L207" class="LineNr">207 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-row:offset</span>, row
 <span id="L208" class="LineNr">208 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-column:offset</span>, column
-<span id="L209" class="LineNr">209 </span>  top-of-screen:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L209" class="LineNr">209 </span>  top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L210" class="LineNr">210 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">before-cursor:offset</span>, top-of-screen
 <span id="L211" class="LineNr">211 </span>  <a href='../081print.mu.html#L4'>screen</a> <span class="Special">&lt;-</span> <a href='../081print.mu.html#L435'>move-cursor</a> <a href='../081print.mu.html#L4'>screen</a>, row, column
 <span id="L212" class="LineNr">212 </span>  <span class="Delimiter">{</span>
diff --git a/html/edit/005-sandbox.mu.html b/html/edit/005-sandbox.mu.html
index 8346152a..9eb7d9f8 100644
--- a/html/edit/005-sandbox.mu.html
+++ b/html/edit/005-sandbox.mu.html
@@ -227,7 +227,7 @@ if ('onhashchange' in window) {
 <span id="L164" class="LineNr"> 164 </span>  <span class="Conceal">¦</span> sandbox-count <span class="Special">&lt;-</span> add sandbox-count,<span class="Constant"> 1</span>
 <span id="L165" class="LineNr"> 165 </span>  <span class="Conceal">¦</span> *env <span class="Special">&lt;-</span> put *env, <span class="Constant">number-of-sandboxes:offset</span>, sandbox-count
 <span id="L166" class="LineNr"> 166 </span>  <span class="Conceal">¦</span> <span class="Comment"># clear sandbox editor</span>
-<span id="L167" class="LineNr"> 167 </span>  <span class="Conceal">¦</span> init:&amp;:duplex-list:char <span class="Special">&lt;-</span> push <span class="Constant">167/§</span>, <span class="Constant">0/tail</span>
+<span id="L167" class="LineNr"> 167 </span>  <span class="Conceal">¦</span> init:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> push <span class="Constant">167/§</span>, <span class="Constant">0/tail</span>
 <span id="L168" class="LineNr"> 168 </span>  <span class="Conceal">¦</span> *current-sandbox <span class="Special">&lt;-</span> put *current-sandbox, <span class="Constant">data:offset</span>, init
 <span id="L169" class="LineNr"> 169 </span>  <span class="Conceal">¦</span> *current-sandbox <span class="Special">&lt;-</span> put *current-sandbox, <span class="Constant">top-of-screen:offset</span>, init
 <span id="L170" class="LineNr"> 170 </span>  <span class="Delimiter">}</span>
@@ -759,8 +759,8 @@ if ('onhashchange' in window) {
 <span id="L696" class="LineNr"> 696 </span><span class="muRecipe">def</span> <a href='005-sandbox.mu.html#L696'>editor-contents</a> editor:&amp;:editor<span class="muRecipe"> -&gt; </span>result:text [
 <span id="L697" class="LineNr"> 697 </span>  <span class="Constant">local-scope</span>
 <span id="L698" class="LineNr"> 698 </span>  <span class="Constant">load-ingredients</span>
-<span id="L699" class="LineNr"> 699 </span>  buf:&amp;:buffer <span class="Special">&lt;-</span> <a href='../061text.mu.html#L131'>new-buffer</a><span class="Constant"> 80</span>
-<span id="L700" class="LineNr"> 700 </span>  curr:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
+<span id="L699" class="LineNr"> 699 </span>  buf:&amp;:<a href='../061text.mu.html#L126'>buffer</a> <span class="Special">&lt;-</span> <a href='../061text.mu.html#L131'>new-buffer</a><span class="Constant"> 80</span>
+<span id="L700" class="LineNr"> 700 </span>  curr:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
 <span id="L701" class="LineNr"> 701 </span>  <span class="Comment"># skip § sentinel</span>
 <span id="L702" class="LineNr"> 702 </span>  assert curr, <span class="Constant">[editor without data is illegal; must have at least a sentinel]</span>
 <span id="L703" class="LineNr"> 703 </span>  curr <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> curr
diff --git a/html/edit/006-sandbox-copy.mu.html b/html/edit/006-sandbox-copy.mu.html
index 16b8d819..61a06072 100644
--- a/html/edit/006-sandbox-copy.mu.html
+++ b/html/edit/006-sandbox-copy.mu.html
@@ -263,8 +263,8 @@ if ('onhashchange' in window) {
 <span id="L201" class="LineNr">201 </span><span class="muRecipe">def</span> <a href='006-sandbox-copy.mu.html#L201'>empty-editor?</a> editor:&amp;:editor<span class="muRecipe"> -&gt; </span>result:bool [
 <span id="L202" class="LineNr">202 </span>  <span class="Constant">local-scope</span>
 <span id="L203" class="LineNr">203 </span>  <span class="Constant">load-ingredients</span>
-<span id="L204" class="LineNr">204 </span>  head:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
-<span id="L205" class="LineNr">205 </span>  first:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> head
+<span id="L204" class="LineNr">204 </span>  head:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
+<span id="L205" class="LineNr">205 </span>  first:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> head
 <span id="L206" class="LineNr">206 </span>  result <span class="Special">&lt;-</span> not first
 <span id="L207" class="LineNr">207 </span>]
 <span id="L208" class="LineNr">208 </span>
diff --git a/html/edit/011-errors.mu.html b/html/edit/011-errors.mu.html
index a22244b0..8c2a1f1c 100644
--- a/html/edit/011-errors.mu.html
+++ b/html/edit/011-errors.mu.html
@@ -377,12 +377,12 @@ if ('onhashchange' in window) {
 <span id="L314" class="LineNr">314 </span>  <span class="Comment"># overload a well-known shape-shifting recipe</span>
 <span id="L315" class="LineNr">315 </span>  assume-resources [
 <span id="L316" class="LineNr">316 </span>  <span class="Conceal">¦</span> <span class="Constant">[lesson/recipes.mu]</span> <span class="Special">&lt;-</span> [
-<span id="L317" class="LineNr">317 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Constant">|recipe</span> length l:&amp;:list:_elem<span class="muRecipe"> -&gt; </span>n:num <span class="Constant">[|</span>
+<span id="L317" class="LineNr">317 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Constant">|recipe</span> length l:&amp;:<a href='../064list.mu.html#L6'>list</a>:_elem<span class="muRecipe"> -&gt; </span>n:num <span class="Constant">[|</span>
 <span id="L318" class="LineNr">318 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> </span><span class="Conceal">¦</span><span class="Constant"> |]</span>|
 <span id="L319" class="LineNr">319 </span>  <span class="Conceal">¦</span> ]
 <span id="L320" class="LineNr">320 </span>  ]
 <span id="L321" class="LineNr">321 </span>  <span class="Comment"># call code that uses other variants of it, but not it itself</span>
-<span id="L322" class="LineNr">322 </span>  test-sandbox:text <span class="Special">&lt;-</span> new <span class="Constant">[x:&amp;:list:num &lt;- copy 0</span>
+<span id="L322" class="LineNr">322 </span>  test-sandbox:text <span class="Special">&lt;-</span> new <span class="Constant">[x:&amp;:<a href='../064list.mu.html#L6'>list</a>:num &lt;- copy 0</span>
 <span id="L323" class="LineNr">323 </span><span class="Constant">to-text x]</span>
 <span id="L324" class="LineNr">324 </span>  env:&amp;:environment <span class="Special">&lt;-</span> <a href='004-programming-environment.mu.html#L21'>new-programming-environment</a> <a href='../088file.mu.html#L11'>resources</a>, <a href='../081print.mu.html#L4'>screen</a>, test-sandbox
 <span id="L325" class="LineNr">325 </span>  <span class="Comment"># run it once</span>
diff --git a/html/edit/012-editor-undo.mu.html b/html/edit/012-editor-undo.mu.html
index bf1b7c99..2c227c0f 100644
--- a/html/edit/012-editor-undo.mu.html
+++ b/html/edit/012-editor-undo.mu.html
@@ -74,13 +74,13 @@ if ('onhashchange' in window) {
 <span id="L11" class="LineNr">  11 </span><span class="muData">container</span> <a href='012-editor-undo.mu.html#L11'>insert-operation</a> [
 <span id="L12" class="LineNr">  12 </span>  before-row:num
 <span id="L13" class="LineNr">  13 </span>  before-column:num
-<span id="L14" class="LineNr">  14 </span>  before-top-of-screen:&amp;:duplex-list:char
+<span id="L14" class="LineNr">  14 </span>  before-top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
 <span id="L15" class="LineNr">  15 </span>  after-row:num
 <span id="L16" class="LineNr">  16 </span>  after-column:num
-<span id="L17" class="LineNr">  17 </span>  after-top-of-screen:&amp;:duplex-list:char
+<span id="L17" class="LineNr">  17 </span>  after-top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
 <span id="L18" class="LineNr">  18 </span>  <span class="Comment"># inserted text is from 'insert-from' until 'insert-until'; list doesn't have to terminate</span>
-<span id="L19" class="LineNr">  19 </span>  insert-from:&amp;:duplex-list:char
-<span id="L20" class="LineNr">  20 </span>  insert-until:&amp;:duplex-list:char
+<span id="L19" class="LineNr">  19 </span>  insert-from:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
+<span id="L20" class="LineNr">  20 </span>  insert-until:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
 <span id="L21" class="LineNr">  21 </span>  tag:num  <span class="Comment"># event causing this operation; might be used to coalesce runs of similar events</span>
 <span id="L22" class="LineNr">  22 </span>  <span class="Conceal">¦</span> <span class="Comment"># 0: no coalesce (enter+indent)</span>
 <span id="L23" class="LineNr">  23 </span>  <span class="Conceal">¦</span> <span class="Comment"># 1: regular alphanumeric characters</span>
@@ -89,10 +89,10 @@ if ('onhashchange' in window) {
 <span id="L26" class="LineNr">  26 </span><span class="muData">container</span> <a href='012-editor-undo.mu.html#L26'>move-operation</a> [
 <span id="L27" class="LineNr">  27 </span>  before-row:num
 <span id="L28" class="LineNr">  28 </span>  before-column:num
-<span id="L29" class="LineNr">  29 </span>  before-top-of-screen:&amp;:duplex-list:char
+<span id="L29" class="LineNr">  29 </span>  before-top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
 <span id="L30" class="LineNr">  30 </span>  after-row:num
 <span id="L31" class="LineNr">  31 </span>  after-column:num
-<span id="L32" class="LineNr">  32 </span>  after-top-of-screen:&amp;:duplex-list:char
+<span id="L32" class="LineNr">  32 </span>  after-top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
 <span id="L33" class="LineNr">  33 </span>  tag:num  <span class="Comment"># event causing this operation; might be used to coalesce runs of similar events</span>
 <span id="L34" class="LineNr">  34 </span>  <span class="Conceal">¦</span> <span class="Comment"># 0: no coalesce (touch events, etc)</span>
 <span id="L35" class="LineNr">  35 </span>  <span class="Conceal">¦</span> <span class="Comment"># 1: left arrow</span>
@@ -104,13 +104,13 @@ if ('onhashchange' in window) {
 <span id="L41" class="LineNr">  41 </span><span class="muData">container</span> <a href='012-editor-undo.mu.html#L41'>delete-operation</a> [
 <span id="L42" class="LineNr">  42 </span>  before-row:num
 <span id="L43" class="LineNr">  43 </span>  before-column:num
-<span id="L44" class="LineNr">  44 </span>  before-top-of-screen:&amp;:duplex-list:char
+<span id="L44" class="LineNr">  44 </span>  before-top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
 <span id="L45" class="LineNr">  45 </span>  after-row:num
 <span id="L46" class="LineNr">  46 </span>  after-column:num
-<span id="L47" class="LineNr">  47 </span>  after-top-of-screen:&amp;:duplex-list:char
-<span id="L48" class="LineNr">  48 </span>  deleted-text:&amp;:duplex-list:char
-<span id="L49" class="LineNr">  49 </span>  delete-from:&amp;:duplex-list:char
-<span id="L50" class="LineNr">  50 </span>  delete-until:&amp;:duplex-list:char
+<span id="L47" class="LineNr">  47 </span>  after-top-of-screen:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
+<span id="L48" class="LineNr">  48 </span>  deleted-text:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
+<span id="L49" class="LineNr">  49 </span>  delete-from:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
+<span id="L50" class="LineNr">  50 </span>  delete-until:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char
 <span id="L51" class="LineNr">  51 </span>  tag:num  <span class="Comment"># event causing this operation; might be used to coalesce runs of similar events</span>
 <span id="L52" class="LineNr">  52 </span>  <span class="Conceal">¦</span> <span class="Comment"># 0: no coalesce (ctrl-k, ctrl-u)</span>
 <span id="L53" class="LineNr">  53 </span>  <span class="Conceal">¦</span> <span class="Comment"># 1: backspace</span>
@@ -119,8 +119,8 @@ if ('onhashchange' in window) {
 <span id="L56" class="LineNr">  56 </span>
 <span id="L57" class="LineNr">  57 </span><span class="Comment"># every editor accumulates a list of operations to undo/redo</span>
 <span id="L58" class="LineNr">  58 </span><span class="muData">container</span> editor [
-<span id="L59" class="LineNr">  59 </span>  undo:&amp;:list:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a>
-<span id="L60" class="LineNr">  60 </span>  redo:&amp;:list:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a>
+<span id="L59" class="LineNr">  59 </span>  undo:&amp;:<a href='../064list.mu.html#L6'>list</a>:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a>
+<span id="L60" class="LineNr">  60 </span>  redo:&amp;:<a href='../064list.mu.html#L6'>list</a>:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a>
 <span id="L61" class="LineNr">  61 </span>]
 <span id="L62" class="LineNr">  62 </span>
 <span id="L63" class="LineNr">  63 </span><span class="Comment"># ctrl-z - undo operation</span>
@@ -128,12 +128,12 @@ if ('onhashchange' in window) {
 <span id="L65" class="LineNr">  65 </span>  <span class="Delimiter">{</span>
 <span id="L66" class="LineNr">  66 </span>  <span class="Conceal">¦</span> undo?:bool <span class="Special">&lt;-</span> equal c, <span class="Constant">26/ctrl-z</span>
 <span id="L67" class="LineNr">  67 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> undo?
-<span id="L68" class="LineNr">  68 </span>  <span class="Conceal">¦</span> undo:&amp;:list:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
+<span id="L68" class="LineNr">  68 </span>  <span class="Conceal">¦</span> undo:&amp;:<a href='../064list.mu.html#L6'>list</a>:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
 <span id="L69" class="LineNr">  69 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> undo
 <span id="L70" class="LineNr">  70 </span>  <span class="Conceal">¦</span> op:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> first undo
 <span id="L71" class="LineNr">  71 </span>  <span class="Conceal">¦</span> undo <span class="Special">&lt;-</span> <a href='../064list.mu.html#L25'>rest</a> undo
 <span id="L72" class="LineNr">  72 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">undo:offset</span>, undo
-<span id="L73" class="LineNr">  73 </span>  <span class="Conceal">¦</span> redo:&amp;:list:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">redo:offset</span>
+<span id="L73" class="LineNr">  73 </span>  <span class="Conceal">¦</span> redo:&amp;:<a href='../064list.mu.html#L6'>list</a>:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">redo:offset</span>
 <span id="L74" class="LineNr">  74 </span>  <span class="Conceal">¦</span> redo <span class="Special">&lt;-</span> push op, redo
 <span id="L75" class="LineNr">  75 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">redo:offset</span>, redo
 <span id="L76" class="LineNr">  76 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> <a href='012-editor-undo.mu.html#L76'>&lt;handle-undo&gt;</a></span>
@@ -146,12 +146,12 @@ if ('onhashchange' in window) {
 <span id="L83" class="LineNr">  83 </span>  <span class="Delimiter">{</span>
 <span id="L84" class="LineNr">  84 </span>  <span class="Conceal">¦</span> redo?:bool <span class="Special">&lt;-</span> equal c, <span class="Constant">25/ctrl-y</span>
 <span id="L85" class="LineNr">  85 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> redo?
-<span id="L86" class="LineNr">  86 </span>  <span class="Conceal">¦</span> redo:&amp;:list:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">redo:offset</span>
+<span id="L86" class="LineNr">  86 </span>  <span class="Conceal">¦</span> redo:&amp;:<a href='../064list.mu.html#L6'>list</a>:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">redo:offset</span>
 <span id="L87" class="LineNr">  87 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> redo
 <span id="L88" class="LineNr">  88 </span>  <span class="Conceal">¦</span> op:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> first redo
 <span id="L89" class="LineNr">  89 </span>  <span class="Conceal">¦</span> redo <span class="Special">&lt;-</span> <a href='../064list.mu.html#L25'>rest</a> redo
 <span id="L90" class="LineNr">  90 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">redo:offset</span>, redo
-<span id="L91" class="LineNr">  91 </span>  <span class="Conceal">¦</span> undo:&amp;:list:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
+<span id="L91" class="LineNr">  91 </span>  <span class="Conceal">¦</span> undo:&amp;:<a href='../064list.mu.html#L6'>list</a>:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
 <span id="L92" class="LineNr">  92 </span>  <span class="Conceal">¦</span> undo <span class="Special">&lt;-</span> push op, undo
 <span id="L93" class="LineNr">  93 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">undo:offset</span>, undo
 <span id="L94" class="LineNr">  94 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> <a href='012-editor-undo.mu.html#L94'>&lt;handle-redo&gt;</a></span>
@@ -202,14 +202,14 @@ if ('onhashchange' in window) {
 <span id="L139" class="LineNr"> 139 </span>
 <span id="L140" class="LineNr"> 140 </span><span class="Comment"># save operation to undo</span>
 <span id="L141" class="LineNr"> 141 </span><span class="muRecipe">after</span> <span class="Constant">&lt;insert-character-begin&gt;</span> [
-<span id="L142" class="LineNr"> 142 </span>  top-before:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
-<span id="L143" class="LineNr"> 143 </span>  cursor-before:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L142" class="LineNr"> 142 </span>  top-before:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L143" class="LineNr"> 143 </span>  cursor-before:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
 <span id="L144" class="LineNr"> 144 </span>]
 <span id="L145" class="LineNr"> 145 </span><span class="muRecipe">before</span> <span class="Constant">&lt;insert-character-end&gt;</span> [
-<span id="L146" class="LineNr"> 146 </span>  top-after:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L146" class="LineNr"> 146 </span>  top-after:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L147" class="LineNr"> 147 </span>  cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L148" class="LineNr"> 148 </span>  cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
-<span id="L149" class="LineNr"> 149 </span>  undo:&amp;:list:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
+<span id="L149" class="LineNr"> 149 </span>  undo:&amp;:<a href='../064list.mu.html#L6'>list</a>:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
 <span id="L150" class="LineNr"> 150 </span>  <span class="Delimiter">{</span>
 <span id="L151" class="LineNr"> 151 </span>  <span class="Conceal">¦</span> <span class="Comment"># if previous operation was an insert, coalesce this operation with it</span>
 <span id="L152" class="LineNr"> 152 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> undo
@@ -218,8 +218,8 @@ if ('onhashchange' in window) {
 <span id="L155" class="LineNr"> 155 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> is-insert?
 <span id="L156" class="LineNr"> 156 </span>  <span class="Conceal">¦</span> previous-coalesce-tag:num <span class="Special">&lt;-</span> get typing, <span class="Constant">tag:offset</span>
 <span id="L157" class="LineNr"> 157 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> previous-coalesce-tag
-<span id="L158" class="LineNr"> 158 </span>  <span class="Conceal">¦</span> before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
-<span id="L159" class="LineNr"> 159 </span>  <span class="Conceal">¦</span> insert-until:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L158" class="LineNr"> 158 </span>  <span class="Conceal">¦</span> before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L159" class="LineNr"> 159 </span>  <span class="Conceal">¦</span> insert-until:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L160" class="LineNr"> 160 </span>  <span class="Conceal">¦</span> typing <span class="Special">&lt;-</span> put typing, <span class="Constant">insert-until:offset</span>, insert-until
 <span id="L161" class="LineNr"> 161 </span>  <span class="Conceal">¦</span> typing <span class="Special">&lt;-</span> put typing, <span class="Constant">after-row:offset</span>, cursor-row
 <span id="L162" class="LineNr"> 162 </span>  <span class="Conceal">¦</span> typing <span class="Special">&lt;-</span> put typing, <span class="Constant">after-column:offset</span>, cursor-column
@@ -228,8 +228,8 @@ if ('onhashchange' in window) {
 <span id="L165" class="LineNr"> 165 </span>  <span class="Conceal">¦</span> <span class="muControl">break</span> <span class="Constant">+done-adding-insert-operation</span>
 <span id="L166" class="LineNr"> 166 </span>  <span class="Delimiter">}</span>
 <span id="L167" class="LineNr"> 167 </span>  <span class="Comment"># if not, create a new operation</span>
-<span id="L168" class="LineNr"> 168 </span>  insert-from:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> cursor-before
-<span id="L169" class="LineNr"> 169 </span>  insert-to:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> insert-from
+<span id="L168" class="LineNr"> 168 </span>  insert-from:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> cursor-before
+<span id="L169" class="LineNr"> 169 </span>  insert-to:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> insert-from
 <span id="L170" class="LineNr"> 170 </span>  op:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> new <span class="Constant"><a href='012-editor-undo.mu.html#L5'>operation</a>:type</span>
 <span id="L171" class="LineNr"> 171 </span>  *op <span class="Special">&lt;-</span> merge <span class="Constant">0/insert-operation</span>, save-row/before, save-column/before, top-before, cursor-row/after, cursor-column/after, top-after, insert-from, insert-to, <span class="Constant">1/coalesce</span>
 <span id="L172" class="LineNr"> 172 </span>  editor <span class="Special">&lt;-</span> <a href='012-editor-undo.mu.html#L200'>add-operation</a> editor, op
@@ -240,17 +240,17 @@ if ('onhashchange' in window) {
 <span id="L177" class="LineNr"> 177 </span><span class="muRecipe">after</span> <span class="Constant"><a href='002-typing.mu.html#L857'>&lt;insert-enter-begin&gt;</a></span> [
 <span id="L178" class="LineNr"> 178 </span>  cursor-row-before:num <span class="Special">&lt;-</span> copy cursor-row
 <span id="L179" class="LineNr"> 179 </span>  cursor-column-before:num <span class="Special">&lt;-</span> copy cursor-column
-<span id="L180" class="LineNr"> 180 </span>  top-before:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
-<span id="L181" class="LineNr"> 181 </span>  cursor-before:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L180" class="LineNr"> 180 </span>  top-before:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L181" class="LineNr"> 181 </span>  cursor-before:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
 <span id="L182" class="LineNr"> 182 </span>]
 <span id="L183" class="LineNr"> 183 </span><span class="muRecipe">before</span> <span class="Constant"><a href='002-typing.mu.html#L859'>&lt;insert-enter-end&gt;</a></span> [
-<span id="L184" class="LineNr"> 184 </span>  top-after:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L184" class="LineNr"> 184 </span>  top-after:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L185" class="LineNr"> 185 </span>  cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L186" class="LineNr"> 186 </span>  cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L187" class="LineNr"> 187 </span>  <span class="Comment"># never coalesce</span>
-<span id="L188" class="LineNr"> 188 </span>  insert-from:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> cursor-before
-<span id="L189" class="LineNr"> 189 </span>  before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
-<span id="L190" class="LineNr"> 190 </span>  insert-to:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L188" class="LineNr"> 188 </span>  insert-from:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> cursor-before
+<span id="L189" class="LineNr"> 189 </span>  before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L190" class="LineNr"> 190 </span>  insert-to:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L191" class="LineNr"> 191 </span>  op:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> new <span class="Constant"><a href='012-editor-undo.mu.html#L5'>operation</a>:type</span>
 <span id="L192" class="LineNr"> 192 </span>  *op <span class="Special">&lt;-</span> merge <span class="Constant">0/insert-operation</span>, cursor-row-before, cursor-column-before, top-before, cursor-row/after, cursor-column/after, top-after, insert-from, insert-to, <span class="Constant">0/never-coalesce</span>
 <span id="L193" class="LineNr"> 193 </span>  editor <span class="Special">&lt;-</span> <a href='012-editor-undo.mu.html#L200'>add-operation</a> editor, op
@@ -263,10 +263,10 @@ if ('onhashchange' in window) {
 <span id="L200" class="LineNr"> 200 </span><span class="muRecipe">def</span> <a href='012-editor-undo.mu.html#L200'>add-operation</a> editor:&amp;:editor, op:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a><span class="muRecipe"> -&gt; </span>editor:&amp;:editor [
 <span id="L201" class="LineNr"> 201 </span>  <span class="Constant">local-scope</span>
 <span id="L202" class="LineNr"> 202 </span>  <span class="Constant">load-ingredients</span>
-<span id="L203" class="LineNr"> 203 </span>  undo:&amp;:list:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
+<span id="L203" class="LineNr"> 203 </span>  undo:&amp;:<a href='../064list.mu.html#L6'>list</a>:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
 <span id="L204" class="LineNr"> 204 </span>  undo <span class="Special">&lt;-</span> push op undo
 <span id="L205" class="LineNr"> 205 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">undo:offset</span>, undo
-<span id="L206" class="LineNr"> 206 </span>  redo:&amp;:list:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">redo:offset</span>
+<span id="L206" class="LineNr"> 206 </span>  redo:&amp;:<a href='../064list.mu.html#L6'>list</a>:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">redo:offset</span>
 <span id="L207" class="LineNr"> 207 </span>  redo <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
 <span id="L208" class="LineNr"> 208 </span>  *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">redo:offset</span>, redo
 <span id="L209" class="LineNr"> 209 </span>]
@@ -275,17 +275,17 @@ if ('onhashchange' in window) {
 <span id="L212" class="LineNr"> 212 </span>  <span class="Delimiter">{</span>
 <span id="L213" class="LineNr"> 213 </span>  <span class="Conceal">¦</span> typing:<a href='012-editor-undo.mu.html#L11'>insert-operation</a>, is-insert?:bool <span class="Special">&lt;-</span> maybe-convert *op, <span class="Constant">typing:variant</span>
 <span id="L214" class="LineNr"> 214 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> is-insert?
-<span id="L215" class="LineNr"> 215 </span>  <span class="Conceal">¦</span> start:&amp;:duplex-list:char <span class="Special">&lt;-</span> get typing, <span class="Constant">insert-from:offset</span>
-<span id="L216" class="LineNr"> 216 </span>  <span class="Conceal">¦</span> end:&amp;:duplex-list:char <span class="Special">&lt;-</span> get typing, <span class="Constant">insert-until:offset</span>
+<span id="L215" class="LineNr"> 215 </span>  <span class="Conceal">¦</span> start:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get typing, <span class="Constant">insert-from:offset</span>
+<span id="L216" class="LineNr"> 216 </span>  <span class="Conceal">¦</span> end:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get typing, <span class="Constant">insert-until:offset</span>
 <span id="L217" class="LineNr"> 217 </span>  <span class="Conceal">¦</span> <span class="Comment"># assert cursor-row/cursor-column/top-of-screen match after-row/after-column/after-top-of-screen</span>
-<span id="L218" class="LineNr"> 218 </span>  <span class="Conceal">¦</span> before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> start
+<span id="L218" class="LineNr"> 218 </span>  <span class="Conceal">¦</span> before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L36'>prev</a> start
 <span id="L219" class="LineNr"> 219 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">before-cursor:offset</span>, before-cursor
 <span id="L220" class="LineNr"> 220 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L357'>remove-between</a> before-cursor, end
 <span id="L221" class="LineNr"> 221 </span>  <span class="Conceal">¦</span> cursor-row <span class="Special">&lt;-</span> get typing, <span class="Constant">before-row:offset</span>
 <span id="L222" class="LineNr"> 222 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-row:offset</span>, cursor-row
 <span id="L223" class="LineNr"> 223 </span>  <span class="Conceal">¦</span> cursor-column <span class="Special">&lt;-</span> get typing, <span class="Constant">before-column:offset</span>
 <span id="L224" class="LineNr"> 224 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-column:offset</span>, cursor-column
-<span id="L225" class="LineNr"> 225 </span>  <span class="Conceal">¦</span> top:&amp;:duplex-list:char <span class="Special">&lt;-</span> get typing, <span class="Constant">before-top-of-screen:offset</span>
+<span id="L225" class="LineNr"> 225 </span>  <span class="Conceal">¦</span> top:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get typing, <span class="Constant">before-top-of-screen:offset</span>
 <span id="L226" class="LineNr"> 226 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">top-of-screen:offset</span>, top
 <span id="L227" class="LineNr"> 227 </span>  <span class="Delimiter">}</span>
 <span id="L228" class="LineNr"> 228 </span>]
@@ -476,7 +476,7 @@ if ('onhashchange' in window) {
 <span id="L413" class="LineNr"> 413 </span>  <span class="Conceal">¦</span> typing:<a href='012-editor-undo.mu.html#L11'>insert-operation</a>, is-insert?:bool <span class="Special">&lt;-</span> maybe-convert *op, <span class="Constant">typing:variant</span>
 <span id="L414" class="LineNr"> 414 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> is-insert?
 <span id="L415" class="LineNr"> 415 </span>  <span class="Conceal">¦</span> before-cursor <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
-<span id="L416" class="LineNr"> 416 </span>  <span class="Conceal">¦</span> insert-from:&amp;:duplex-list:char <span class="Special">&lt;-</span> get typing, <span class="Constant">insert-from:offset</span>  <span class="Comment"># ignore insert-to because it's already been spliced away</span>
+<span id="L416" class="LineNr"> 416 </span>  <span class="Conceal">¦</span> insert-from:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get typing, <span class="Constant">insert-from:offset</span>  <span class="Comment"># ignore insert-to because it's already been spliced away</span>
 <span id="L417" class="LineNr"> 417 </span>  <span class="Conceal">¦</span> <span class="Comment"># assert insert-to matches next(before-cursor)</span>
 <span id="L418" class="LineNr"> 418 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L497'>insert-range</a> before-cursor, insert-from
 <span id="L419" class="LineNr"> 419 </span>  <span class="Conceal">¦</span> <span class="Comment"># assert cursor-row/cursor-column/top-of-screen match after-row/after-column/after-top-of-screen</span>
@@ -484,7 +484,7 @@ if ('onhashchange' in window) {
 <span id="L421" class="LineNr"> 421 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-row:offset</span>, cursor-row
 <span id="L422" class="LineNr"> 422 </span>  <span class="Conceal">¦</span> cursor-column <span class="Special">&lt;-</span> get typing, <span class="Constant">after-column:offset</span>
 <span id="L423" class="LineNr"> 423 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-column:offset</span>, cursor-column
-<span id="L424" class="LineNr"> 424 </span>  <span class="Conceal">¦</span> top:&amp;:duplex-list:char <span class="Special">&lt;-</span> get typing, <span class="Constant">after-top-of-screen:offset</span>
+<span id="L424" class="LineNr"> 424 </span>  <span class="Conceal">¦</span> top:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get typing, <span class="Constant">after-top-of-screen:offset</span>
 <span id="L425" class="LineNr"> 425 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">top-of-screen:offset</span>, top
 <span id="L426" class="LineNr"> 426 </span>  <span class="Delimiter">}</span>
 <span id="L427" class="LineNr"> 427 </span>]
@@ -782,17 +782,17 @@ if ('onhashchange' in window) {
 <span id="L719" class="LineNr"> 719 </span><span class="muRecipe">after</span> <span class="Constant">&lt;move-cursor-begin&gt;</span> [
 <span id="L720" class="LineNr"> 720 </span>  cursor-row-before:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L721" class="LineNr"> 721 </span>  cursor-column-before:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
-<span id="L722" class="LineNr"> 722 </span>  top-before:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L722" class="LineNr"> 722 </span>  top-before:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L723" class="LineNr"> 723 </span>]
 <span id="L724" class="LineNr"> 724 </span><span class="muRecipe">before</span> <span class="Constant">&lt;move-cursor-end&gt;</span> [
-<span id="L725" class="LineNr"> 725 </span>  top-after:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L725" class="LineNr"> 725 </span>  top-after:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L726" class="LineNr"> 726 </span>  cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L727" class="LineNr"> 727 </span>  cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
 <span id="L728" class="LineNr"> 728 </span>  <span class="Delimiter">{</span>
 <span id="L729" class="LineNr"> 729 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> undo-coalesce-tag
 <span id="L730" class="LineNr"> 730 </span>  <span class="Conceal">¦</span> <span class="Comment"># if previous operation was also a move, and also had the same coalesce</span>
 <span id="L731" class="LineNr"> 731 </span>  <span class="Conceal">¦</span> <span class="Comment"># tag, coalesce with it</span>
-<span id="L732" class="LineNr"> 732 </span>  <span class="Conceal">¦</span> undo:&amp;:list:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
+<span id="L732" class="LineNr"> 732 </span>  <span class="Conceal">¦</span> undo:&amp;:<a href='../064list.mu.html#L6'>list</a>:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
 <span id="L733" class="LineNr"> 733 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> undo
 <span id="L734" class="LineNr"> 734 </span>  <span class="Conceal">¦</span> op:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> first undo
 <span id="L735" class="LineNr"> 735 </span>  <span class="Conceal">¦</span> move:<a href='012-editor-undo.mu.html#L26'>move-operation</a>, is-move?:bool <span class="Special">&lt;-</span> maybe-convert *op, <span class="Constant">move:variant</span>
@@ -821,7 +821,7 @@ if ('onhashchange' in window) {
 <span id="L758" class="LineNr"> 758 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-row:offset</span>, cursor-row
 <span id="L759" class="LineNr"> 759 </span>  <span class="Conceal">¦</span> cursor-column <span class="Special">&lt;-</span> get move, <span class="Constant">before-column:offset</span>
 <span id="L760" class="LineNr"> 760 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-column:offset</span>, cursor-column
-<span id="L761" class="LineNr"> 761 </span>  <span class="Conceal">¦</span> top:&amp;:duplex-list:char <span class="Special">&lt;-</span> get move, <span class="Constant">before-top-of-screen:offset</span>
+<span id="L761" class="LineNr"> 761 </span>  <span class="Conceal">¦</span> top:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get move, <span class="Constant">before-top-of-screen:offset</span>
 <span id="L762" class="LineNr"> 762 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">top-of-screen:offset</span>, top
 <span id="L763" class="LineNr"> 763 </span>  <span class="Delimiter">}</span>
 <span id="L764" class="LineNr"> 764 </span>]
@@ -1457,7 +1457,7 @@ if ('onhashchange' in window) {
 <span id="L1394" class="LineNr">1394 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-row:offset</span>, cursor-row
 <span id="L1395" class="LineNr">1395 </span>  <span class="Conceal">¦</span> cursor-column <span class="Special">&lt;-</span> get move, <span class="Constant">after-column:offset</span>
 <span id="L1396" class="LineNr">1396 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-column:offset</span>, cursor-column
-<span id="L1397" class="LineNr">1397 </span>  <span class="Conceal">¦</span> top:&amp;:duplex-list:char <span class="Special">&lt;-</span> get move, <span class="Constant">after-top-of-screen:offset</span>
+<span id="L1397" class="LineNr">1397 </span>  <span class="Conceal">¦</span> top:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get move, <span class="Constant">after-top-of-screen:offset</span>
 <span id="L1398" class="LineNr">1398 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">top-of-screen:offset</span>, top
 <span id="L1399" class="LineNr">1399 </span>  <span class="Delimiter">}</span>
 <span id="L1400" class="LineNr">1400 </span>]
@@ -1678,16 +1678,16 @@ if ('onhashchange' in window) {
 <span id="L1615" class="LineNr">1615 </span>
 <span id="L1616" class="LineNr">1616 </span><span class="Comment"># save operation to undo</span>
 <span id="L1617" class="LineNr">1617 </span><span class="muRecipe">after</span> <span class="Constant"><a href='003-shortcuts.mu.html#L73'>&lt;backspace-character-begin&gt;</a></span> [
-<span id="L1618" class="LineNr">1618 </span>  top-before:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L1618" class="LineNr">1618 </span>  top-before:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L1619" class="LineNr">1619 </span>]
 <span id="L1620" class="LineNr">1620 </span><span class="muRecipe">before</span> <span class="Constant"><a href='003-shortcuts.mu.html#L75'>&lt;backspace-character-end&gt;</a></span> [
 <span id="L1621" class="LineNr">1621 </span>  <span class="Delimiter">{</span>
 <span id="L1622" class="LineNr">1622 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> backspaced-cell  <span class="Comment"># backspace failed; don't add an undo operation</span>
-<span id="L1623" class="LineNr">1623 </span>  <span class="Conceal">¦</span> top-after:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L1623" class="LineNr">1623 </span>  <span class="Conceal">¦</span> top-after:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L1624" class="LineNr">1624 </span>  <span class="Conceal">¦</span> cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L1625" class="LineNr">1625 </span>  <span class="Conceal">¦</span> cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
-<span id="L1626" class="LineNr">1626 </span>  <span class="Conceal">¦</span> before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
-<span id="L1627" class="LineNr">1627 </span>  <span class="Conceal">¦</span> undo:&amp;:list:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
+<span id="L1626" class="LineNr">1626 </span>  <span class="Conceal">¦</span> before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L1627" class="LineNr">1627 </span>  <span class="Conceal">¦</span> undo:&amp;:<a href='../064list.mu.html#L6'>list</a>:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
 <span id="L1628" class="LineNr">1628 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
 <span id="L1629" class="LineNr">1629 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># if previous operation was an insert, coalesce this operation with it</span>
 <span id="L1630" class="LineNr">1630 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> undo
@@ -1698,7 +1698,7 @@ if ('onhashchange' in window) {
 <span id="L1635" class="LineNr">1635 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> coalesce?:bool <span class="Special">&lt;-</span> equal previous-coalesce-tag, <span class="Constant">1/coalesce-backspace</span>
 <span id="L1636" class="LineNr">1636 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> coalesce?
 <span id="L1637" class="LineNr">1637 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> deletion <span class="Special">&lt;-</span> put deletion, <span class="Constant">delete-from:offset</span>, before-cursor
-<span id="L1638" class="LineNr">1638 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> backspaced-so-far:&amp;:duplex-list:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">deleted-text:offset</span>
+<span id="L1638" class="LineNr">1638 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> backspaced-so-far:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">deleted-text:offset</span>
 <span id="L1639" class="LineNr">1639 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L497'>insert-range</a> backspaced-cell, backspaced-so-far
 <span id="L1640" class="LineNr">1640 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> deletion <span class="Special">&lt;-</span> put deletion, <span class="Constant">deleted-text:offset</span>, backspaced-cell
 <span id="L1641" class="LineNr">1641 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> deletion <span class="Special">&lt;-</span> put deletion, <span class="Constant">after-row:offset</span>, cursor-row
@@ -1709,7 +1709,7 @@ if ('onhashchange' in window) {
 <span id="L1646" class="LineNr">1646 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L1647" class="LineNr">1647 </span>  <span class="Conceal">¦</span> <span class="Comment"># if not, create a new operation</span>
 <span id="L1648" class="LineNr">1648 </span>  <span class="Conceal">¦</span> op:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> new <span class="Constant"><a href='012-editor-undo.mu.html#L5'>operation</a>:type</span>
-<span id="L1649" class="LineNr">1649 </span>  <span class="Conceal">¦</span> deleted-until:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L1649" class="LineNr">1649 </span>  <span class="Conceal">¦</span> deleted-until:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L1650" class="LineNr">1650 </span>  <span class="Conceal">¦</span> *op <span class="Special">&lt;-</span> merge <span class="Constant">2/delete-operation</span>, save-row/before, save-column/before, top-before, cursor-row/after, cursor-column/after, top-after, backspaced-cell/deleted, before-cursor/delete-from, deleted-until, <span class="Constant">1/coalesce-backspace</span>
 <span id="L1651" class="LineNr">1651 </span>  <span class="Conceal">¦</span> editor <span class="Special">&lt;-</span> <a href='012-editor-undo.mu.html#L200'>add-operation</a> editor, op
 <span id="L1652" class="LineNr">1652 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> +done-adding-backspace-operation</span>
@@ -1720,10 +1720,10 @@ if ('onhashchange' in window) {
 <span id="L1657" class="LineNr">1657 </span>  <span class="Delimiter">{</span>
 <span id="L1658" class="LineNr">1658 </span>  <span class="Conceal">¦</span> deletion:<a href='012-editor-undo.mu.html#L41'>delete-operation</a>, is-delete?:bool <span class="Special">&lt;-</span> maybe-convert *op, <span class="Constant">delete:variant</span>
 <span id="L1659" class="LineNr">1659 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> is-delete?
-<span id="L1660" class="LineNr">1660 </span>  <span class="Conceal">¦</span> anchor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">delete-from:offset</span>
+<span id="L1660" class="LineNr">1660 </span>  <span class="Conceal">¦</span> anchor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">delete-from:offset</span>
 <span id="L1661" class="LineNr">1661 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> anchor
-<span id="L1662" class="LineNr">1662 </span>  <span class="Conceal">¦</span> deleted:&amp;:duplex-list:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">deleted-text:offset</span>
-<span id="L1663" class="LineNr">1663 </span>  <span class="Conceal">¦</span> old-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L528'>last</a> deleted
+<span id="L1662" class="LineNr">1662 </span>  <span class="Conceal">¦</span> deleted:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">deleted-text:offset</span>
+<span id="L1663" class="LineNr">1663 </span>  <span class="Conceal">¦</span> old-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L528'>last</a> deleted
 <span id="L1664" class="LineNr">1664 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L497'>insert-range</a> anchor, deleted
 <span id="L1665" class="LineNr">1665 </span>  <span class="Conceal">¦</span> <span class="Comment"># assert cursor-row/cursor-column/top-of-screen match after-row/after-column/after-top-of-screen</span>
 <span id="L1666" class="LineNr">1666 </span>  <span class="Conceal">¦</span> before-cursor <span class="Special">&lt;-</span> copy old-cursor
@@ -1731,7 +1731,7 @@ if ('onhashchange' in window) {
 <span id="L1668" class="LineNr">1668 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-row:offset</span>, cursor-row
 <span id="L1669" class="LineNr">1669 </span>  <span class="Conceal">¦</span> cursor-column <span class="Special">&lt;-</span> get deletion, <span class="Constant">before-column:offset</span>
 <span id="L1670" class="LineNr">1670 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-column:offset</span>, cursor-column
-<span id="L1671" class="LineNr">1671 </span>  <span class="Conceal">¦</span> top:&amp;:duplex-list:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">before-top-of-screen:offset</span>
+<span id="L1671" class="LineNr">1671 </span>  <span class="Conceal">¦</span> top:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">before-top-of-screen:offset</span>
 <span id="L1672" class="LineNr">1672 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">top-of-screen:offset</span>, top
 <span id="L1673" class="LineNr">1673 </span>  <span class="Delimiter">}</span>
 <span id="L1674" class="LineNr">1674 </span>]
@@ -1740,16 +1740,16 @@ if ('onhashchange' in window) {
 <span id="L1677" class="LineNr">1677 </span>  <span class="Delimiter">{</span>
 <span id="L1678" class="LineNr">1678 </span>  <span class="Conceal">¦</span> deletion:<a href='012-editor-undo.mu.html#L41'>delete-operation</a>, is-delete?:bool <span class="Special">&lt;-</span> maybe-convert *op, <span class="Constant">delete:variant</span>
 <span id="L1679" class="LineNr">1679 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> is-delete?
-<span id="L1680" class="LineNr">1680 </span>  <span class="Conceal">¦</span> start:&amp;:duplex-list:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">delete-from:offset</span>
-<span id="L1681" class="LineNr">1681 </span>  <span class="Conceal">¦</span> end:&amp;:duplex-list:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">delete-until:offset</span>
-<span id="L1682" class="LineNr">1682 </span>  <span class="Conceal">¦</span> data:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
+<span id="L1680" class="LineNr">1680 </span>  <span class="Conceal">¦</span> start:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">delete-from:offset</span>
+<span id="L1681" class="LineNr">1681 </span>  <span class="Conceal">¦</span> end:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">delete-until:offset</span>
+<span id="L1682" class="LineNr">1682 </span>  <span class="Conceal">¦</span> data:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">data:offset</span>
 <span id="L1683" class="LineNr">1683 </span>  <span class="Conceal">¦</span> <a href='../065duplex_list.mu.html#L357'>remove-between</a> start, end
 <span id="L1684" class="LineNr">1684 </span>  <span class="Conceal">¦</span> <span class="Comment"># assert cursor-row/cursor-column/top-of-screen match after-row/after-column/after-top-of-screen</span>
 <span id="L1685" class="LineNr">1685 </span>  <span class="Conceal">¦</span> cursor-row <span class="Special">&lt;-</span> get deletion, <span class="Constant">after-row:offset</span>
 <span id="L1686" class="LineNr">1686 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-row:offset</span>, cursor-row
 <span id="L1687" class="LineNr">1687 </span>  <span class="Conceal">¦</span> cursor-column <span class="Special">&lt;-</span> get deletion, <span class="Constant">after-column:offset</span>
 <span id="L1688" class="LineNr">1688 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">cursor-column:offset</span>, cursor-column
-<span id="L1689" class="LineNr">1689 </span>  <span class="Conceal">¦</span> top:&amp;:duplex-list:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">before-top-of-screen:offset</span>
+<span id="L1689" class="LineNr">1689 </span>  <span class="Conceal">¦</span> top:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">before-top-of-screen:offset</span>
 <span id="L1690" class="LineNr">1690 </span>  <span class="Conceal">¦</span> *editor <span class="Special">&lt;-</span> put *editor, <span class="Constant">top-of-screen:offset</span>, top
 <span id="L1691" class="LineNr">1691 </span>  <span class="Delimiter">}</span>
 <span id="L1692" class="LineNr">1692 </span>]
@@ -1904,16 +1904,16 @@ if ('onhashchange' in window) {
 <span id="L1841" class="LineNr">1841 </span>]
 <span id="L1842" class="LineNr">1842 </span>
 <span id="L1843" class="LineNr">1843 </span><span class="muRecipe">after</span> <span class="Constant"><a href='003-shortcuts.mu.html#L341'>&lt;delete-character-begin&gt;</a></span> [
-<span id="L1844" class="LineNr">1844 </span>  top-before:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L1844" class="LineNr">1844 </span>  top-before:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L1845" class="LineNr">1845 </span>]
 <span id="L1846" class="LineNr">1846 </span><span class="muRecipe">before</span> <span class="Constant"><a href='003-shortcuts.mu.html#L343'>&lt;delete-character-end&gt;</a></span> [
 <span id="L1847" class="LineNr">1847 </span>  <span class="Delimiter">{</span>
 <span id="L1848" class="LineNr">1848 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> deleted-cell  <span class="Comment"># delete failed; don't add an undo operation</span>
-<span id="L1849" class="LineNr">1849 </span>  <span class="Conceal">¦</span> top-after:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L1849" class="LineNr">1849 </span>  <span class="Conceal">¦</span> top-after:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L1850" class="LineNr">1850 </span>  <span class="Conceal">¦</span> cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L1851" class="LineNr">1851 </span>  <span class="Conceal">¦</span> cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
-<span id="L1852" class="LineNr">1852 </span>  <span class="Conceal">¦</span> before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
-<span id="L1853" class="LineNr">1853 </span>  <span class="Conceal">¦</span> undo:&amp;:list:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
+<span id="L1852" class="LineNr">1852 </span>  <span class="Conceal">¦</span> before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L1853" class="LineNr">1853 </span>  <span class="Conceal">¦</span> undo:&amp;:<a href='../064list.mu.html#L6'>list</a>:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> get *editor, <span class="Constant">undo:offset</span>
 <span id="L1854" class="LineNr">1854 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
 <span id="L1855" class="LineNr">1855 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># if previous operation was an insert, coalesce this operation with it</span>
 <span id="L1856" class="LineNr">1856 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> undo
@@ -1923,9 +1923,9 @@ if ('onhashchange' in window) {
 <span id="L1860" class="LineNr">1860 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> previous-coalesce-tag:num <span class="Special">&lt;-</span> get deletion, <span class="Constant">tag:offset</span>
 <span id="L1861" class="LineNr">1861 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> coalesce?:bool <span class="Special">&lt;-</span> equal previous-coalesce-tag, <span class="Constant">2/coalesce-delete</span>
 <span id="L1862" class="LineNr">1862 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> coalesce?
-<span id="L1863" class="LineNr">1863 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> delete-until:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L1863" class="LineNr">1863 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> delete-until:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L1864" class="LineNr">1864 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> deletion <span class="Special">&lt;-</span> put deletion, <span class="Constant">delete-until:offset</span>, delete-until
-<span id="L1865" class="LineNr">1865 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> deleted-so-far:&amp;:duplex-list:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">deleted-text:offset</span>
+<span id="L1865" class="LineNr">1865 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> deleted-so-far:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get deletion, <span class="Constant">deleted-text:offset</span>
 <span id="L1866" class="LineNr">1866 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> deleted-so-far <span class="Special">&lt;-</span> append deleted-so-far, deleted-cell
 <span id="L1867" class="LineNr">1867 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> deletion <span class="Special">&lt;-</span> put deletion, <span class="Constant">deleted-text:offset</span>, deleted-so-far
 <span id="L1868" class="LineNr">1868 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> deletion <span class="Special">&lt;-</span> put deletion, <span class="Constant">after-row:offset</span>, cursor-row
@@ -1936,7 +1936,7 @@ if ('onhashchange' in window) {
 <span id="L1873" class="LineNr">1873 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L1874" class="LineNr">1874 </span>  <span class="Conceal">¦</span> <span class="Comment"># if not, create a new operation</span>
 <span id="L1875" class="LineNr">1875 </span>  <span class="Conceal">¦</span> op:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> new <span class="Constant"><a href='012-editor-undo.mu.html#L5'>operation</a>:type</span>
-<span id="L1876" class="LineNr">1876 </span>  <span class="Conceal">¦</span> deleted-until:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L1876" class="LineNr">1876 </span>  <span class="Conceal">¦</span> deleted-until:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L1877" class="LineNr">1877 </span>  <span class="Conceal">¦</span> *op <span class="Special">&lt;-</span> merge <span class="Constant">2/delete-operation</span>, save-row/before, save-column/before, top-before, cursor-row/after, cursor-column/after, top-after, deleted-cell/deleted, before-cursor/delete-from, deleted-until, <span class="Constant">2/coalesce-delete</span>
 <span id="L1878" class="LineNr">1878 </span>  <span class="Conceal">¦</span> editor <span class="Special">&lt;-</span> <a href='012-editor-undo.mu.html#L200'>add-operation</a> editor, op
 <span id="L1879" class="LineNr">1879 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> +done-adding-delete-operation</span>
@@ -2030,15 +2030,15 @@ if ('onhashchange' in window) {
 <span id="L1967" class="LineNr">1967 </span>]
 <span id="L1968" class="LineNr">1968 </span>
 <span id="L1969" class="LineNr">1969 </span><span class="muRecipe">after</span> <span class="Constant"><a href='003-shortcuts.mu.html#L1789'>&lt;delete-to-end-of-line-begin&gt;</a></span> [
-<span id="L1970" class="LineNr">1970 </span>  top-before:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L1970" class="LineNr">1970 </span>  top-before:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L1971" class="LineNr">1971 </span>]
 <span id="L1972" class="LineNr">1972 </span><span class="muRecipe">before</span> <span class="Constant"><a href='003-shortcuts.mu.html#L1791'>&lt;delete-to-end-of-line-end&gt;</a></span> [
 <span id="L1973" class="LineNr">1973 </span>  <span class="Delimiter">{</span>
 <span id="L1974" class="LineNr">1974 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> deleted-cells  <span class="Comment"># delete failed; don't add an undo operation</span>
-<span id="L1975" class="LineNr">1975 </span>  <span class="Conceal">¦</span> top-after:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L1975" class="LineNr">1975 </span>  <span class="Conceal">¦</span> top-after:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L1976" class="LineNr">1976 </span>  <span class="Conceal">¦</span> cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L1977" class="LineNr">1977 </span>  <span class="Conceal">¦</span> cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
-<span id="L1978" class="LineNr">1978 </span>  <span class="Conceal">¦</span> deleted-until:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L1978" class="LineNr">1978 </span>  <span class="Conceal">¦</span> deleted-until:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L1979" class="LineNr">1979 </span>  <span class="Conceal">¦</span> op:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> new <span class="Constant"><a href='012-editor-undo.mu.html#L5'>operation</a>:type</span>
 <span id="L1980" class="LineNr">1980 </span>  <span class="Conceal">¦</span> *op <span class="Special">&lt;-</span> merge <span class="Constant">2/delete-operation</span>, save-row/before, save-column/before, top-before, cursor-row/after, cursor-column/after, top-after, deleted-cells/deleted, before-cursor/delete-from, deleted-until, <span class="Constant">0/never-coalesce</span>
 <span id="L1981" class="LineNr">1981 </span>  <span class="Conceal">¦</span> editor <span class="Special">&lt;-</span> <a href='012-editor-undo.mu.html#L200'>add-operation</a> editor, op
@@ -2133,15 +2133,15 @@ if ('onhashchange' in window) {
 <span id="L2070" class="LineNr">2070 </span>]
 <span id="L2071" class="LineNr">2071 </span>
 <span id="L2072" class="LineNr">2072 </span><span class="muRecipe">after</span> <span class="Constant"><a href='003-shortcuts.mu.html#L1652'>&lt;delete-to-start-of-line-begin&gt;</a></span> [
-<span id="L2073" class="LineNr">2073 </span>  top-before:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L2073" class="LineNr">2073 </span>  top-before:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L2074" class="LineNr">2074 </span>]
 <span id="L2075" class="LineNr">2075 </span><span class="muRecipe">before</span> <span class="Constant"><a href='003-shortcuts.mu.html#L1654'>&lt;delete-to-start-of-line-end&gt;</a></span> [
 <span id="L2076" class="LineNr">2076 </span>  <span class="Delimiter">{</span>
 <span id="L2077" class="LineNr">2077 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> deleted-cells  <span class="Comment"># delete failed; don't add an undo operation</span>
-<span id="L2078" class="LineNr">2078 </span>  <span class="Conceal">¦</span> top-after:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
+<span id="L2078" class="LineNr">2078 </span>  <span class="Conceal">¦</span> top-after:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">top-of-screen:offset</span>
 <span id="L2079" class="LineNr">2079 </span>  <span class="Conceal">¦</span> op:&amp;:<a href='012-editor-undo.mu.html#L5'>operation</a> <span class="Special">&lt;-</span> new <span class="Constant"><a href='012-editor-undo.mu.html#L5'>operation</a>:type</span>
-<span id="L2080" class="LineNr">2080 </span>  <span class="Conceal">¦</span> before-cursor:&amp;:duplex-list:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
-<span id="L2081" class="LineNr">2081 </span>  <span class="Conceal">¦</span> deleted-until:&amp;:duplex-list:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
+<span id="L2080" class="LineNr">2080 </span>  <span class="Conceal">¦</span> before-cursor:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> get *editor, <span class="Constant">before-cursor:offset</span>
+<span id="L2081" class="LineNr">2081 </span>  <span class="Conceal">¦</span> deleted-until:&amp;:<a href='../065duplex_list.mu.html#L3'>duplex-list</a>:char <span class="Special">&lt;-</span> <a href='../065duplex_list.mu.html#L29'>next</a> before-cursor
 <span id="L2082" class="LineNr">2082 </span>  <span class="Conceal">¦</span> cursor-row:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-row:offset</span>
 <span id="L2083" class="LineNr">2083 </span>  <span class="Conceal">¦</span> cursor-column:num <span class="Special">&lt;-</span> get *editor, <span class="Constant">cursor-column:offset</span>
 <span id="L2084" class="LineNr">2084 </span>  <span class="Conceal">¦</span> *op <span class="Special">&lt;-</span> merge <span class="Constant">2/delete-operation</span>, save-row/before, save-column/before, top-before, cursor-row/after, cursor-column/after, top-after, deleted-cells/deleted, before-cursor/delete-from, deleted-until, <span class="Constant">0/never-coalesce</span>
diff --git a/html/filesystem.mu.html b/html/filesystem.mu.html
index 64776808..40703554 100644
--- a/html/filesystem.mu.html
+++ b/html/filesystem.mu.html
@@ -65,8 +65,8 @@ if ('onhashchange' in window) {
 <span id="L5" class="LineNr"> 5 </span>
 <span id="L6" class="LineNr"> 6 </span><span class="muRecipe">def</span> <a href='filesystem.mu.html#L6'>main</a> [
 <span id="L7" class="LineNr"> 7 </span>  <span class="Constant">local-scope</span>
-<span id="L8" class="LineNr"> 8 </span>  source-file:&amp;:source:char <span class="Special">&lt;-</span> <a href='088file.mu.html#L21'>start-reading</a> <span class="Constant">0/real-filesystem</span>, <span class="Constant">[/tmp/mu-x]</span>
-<span id="L9" class="LineNr"> 9 </span>  sink-file:&amp;:sink:char, write-routine:num <span class="Special">&lt;-</span> <a href='088file.mu.html#L105'>start-writing</a> <span class="Constant">0/real-filesystem</span>, <span class="Constant">[/tmp/mu-y]</span>
+<span id="L8" class="LineNr"> 8 </span>  source-file:&amp;:<a href='075channel.mu.html#L43'>source</a>:char <span class="Special">&lt;-</span> <a href='088file.mu.html#L21'>start-reading</a> <span class="Constant">0/real-filesystem</span>, <span class="Constant">[/tmp/mu-x]</span>
+<span id="L9" class="LineNr"> 9 </span>  sink-file:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char, write-routine:num <span class="Special">&lt;-</span> <a href='088file.mu.html#L105'>start-writing</a> <span class="Constant">0/real-filesystem</span>, <span class="Constant">[/tmp/mu-y]</span>
 <span id="L10" class="LineNr">10 </span>  <span class="Delimiter">{</span>
 <span id="L11" class="LineNr">11 </span>  <span class="Conceal">¦</span> c:char, done?:bool, source-file <span class="Special">&lt;-</span> read source-file
 <span id="L12" class="LineNr">12 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
diff --git a/html/http-client.mu.html b/html/http-client.mu.html
index 90b72559..17cb6fde 100644
--- a/html/http-client.mu.html
+++ b/html/http-client.mu.html
@@ -62,9 +62,9 @@ if ('onhashchange' in window) {
 <span id="L2" class="LineNr"> 2 </span>
 <span id="L3" class="LineNr"> 3 </span><span class="muRecipe">def</span> <a href='http-client.mu.html#L3'>main</a> [
 <span id="L4" class="LineNr"> 4 </span>  <span class="Constant">local-scope</span>
-<span id="L5" class="LineNr"> 5 </span>  google:&amp;:source:char <span class="Special">&lt;-</span> <a href='092socket.mu.html#L69'>start-reading-from-network</a> <span class="Constant">0/real-resources</span>, <span class="Constant">[google.com/]</span>
+<span id="L5" class="LineNr"> 5 </span>  google:&amp;:<a href='075channel.mu.html#L43'>source</a>:char <span class="Special">&lt;-</span> <a href='092socket.mu.html#L69'>start-reading-from-network</a> <span class="Constant">0/real-resources</span>, <span class="Constant">[google.com/]</span>
 <span id="L6" class="LineNr"> 6 </span>  n:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
-<span id="L7" class="LineNr"> 7 </span>  buf:&amp;:buffer <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
+<span id="L7" class="LineNr"> 7 </span>  buf:&amp;:<a href='061text.mu.html#L126'>buffer</a> <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
 <span id="L8" class="LineNr"> 8 </span>  <span class="Delimiter">{</span>
 <span id="L9" class="LineNr"> 9 </span>  <span class="Conceal">¦</span> c:char, done?:bool <span class="Special">&lt;-</span> read google
 <span id="L10" class="LineNr">10 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
diff --git a/html/http-server.mu.html b/html/http-server.mu.html
index f1e97cc7..21ee77c7 100644
--- a/html/http-server.mu.html
+++ b/html/http-server.mu.html
@@ -71,8 +71,8 @@ if ('onhashchange' in window) {
 <span id="L13" class="LineNr">13 </span>  $print <span class="Constant">[Mu socket creation returned ]</span>, socket, <span class="Constant">10/newline</span>
 <span id="L14" class="LineNr">14 </span>  <span class="muControl">return-unless</span> socket
 <span id="L15" class="LineNr">15 </span>  session:num <span class="Special">&lt;-</span> $accept socket
-<span id="L16" class="LineNr">16 </span>  contents:&amp;:source:char, sink:&amp;:sink:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
-<span id="L17" class="LineNr">17 </span>  sink <span class="Special">&lt;-</span> start-running <a href='092socket.mu.html#L104'>receive-from-socket</a> session, sink
+<span id="L16" class="LineNr">16 </span>  contents:&amp;:<a href='075channel.mu.html#L43'>source</a>:char, <a href='075channel.mu.html#L47'>sink</a>:&amp;:<a href='075channel.mu.html#L47'>sink</a>:char <span class="Special">&lt;-</span> <a href='075channel.mu.html#L51'>new-channel</a><span class="Constant"> 30</span>
+<span id="L17" class="LineNr">17 </span>  <a href='075channel.mu.html#L47'>sink</a> <span class="Special">&lt;-</span> start-running <a href='092socket.mu.html#L104'>receive-from-socket</a> session, <a href='075channel.mu.html#L47'>sink</a>
 <span id="L18" class="LineNr">18 </span>  query:text <span class="Special">&lt;-</span> <a href='075channel.mu.html#L487'>drain</a> contents
 <span id="L19" class="LineNr">19 </span>  $print <span class="Constant">[Done reading from socket.]</span>, <span class="Constant">10/newline</span>
 <span id="L20" class="LineNr">20 </span>  <a href='092socket.mu.html#L132'>write-to-socket</a> session, <span class="Constant">[HTTP/1.0 200 OK</span>
diff --git a/html/lambda-to-mu.mu.html b/html/lambda-to-mu.mu.html
index 3a15158f..978ba9fb 100644
--- a/html/lambda-to-mu.mu.html
+++ b/html/lambda-to-mu.mu.html
@@ -240,12 +240,12 @@ if ('onhashchange' in window) {
 <span id="L176" class="LineNr">176 </span><span class="muRecipe">def</span> parse in:text<span class="muRecipe"> -&gt; </span>out:&amp;:<a href='lambda-to-mu.mu.html#L31'>cell</a> [
 <span id="L177" class="LineNr">177 </span>  <span class="Constant">local-scope</span>
 <span id="L178" class="LineNr">178 </span>  <span class="Constant">load-ingredients</span>
-<span id="L179" class="LineNr">179 </span>  s:&amp;:stream:char <span class="Special">&lt;-</span> <a href='066stream.mu.html#L7'>new-stream</a> in
+<span id="L179" class="LineNr">179 </span>  s:&amp;:<a href='066stream.mu.html#L2'>stream</a>:char <span class="Special">&lt;-</span> <a href='066stream.mu.html#L7'>new-stream</a> in
 <span id="L180" class="LineNr">180 </span>  out, s <span class="Special">&lt;-</span> parse s
 <span id="L181" class="LineNr">181 </span>  trace<span class="Constant"> 2</span>, <span class="Constant">[app/parse]</span>, out
 <span id="L182" class="LineNr">182 </span>]
 <span id="L183" class="LineNr">183 </span>
-<span id="L184" class="LineNr">184 </span><span class="muRecipe">def</span> parse in:&amp;:stream:char<span class="muRecipe"> -&gt; </span>out:&amp;:<a href='lambda-to-mu.mu.html#L31'>cell</a>, in:&amp;:stream:char [
+<span id="L184" class="LineNr">184 </span><span class="muRecipe">def</span> parse in:&amp;:<a href='066stream.mu.html#L2'>stream</a>:char<span class="muRecipe"> -&gt; </span>out:&amp;:<a href='lambda-to-mu.mu.html#L31'>cell</a>, in:&amp;:<a href='066stream.mu.html#L2'>stream</a>:char [
 <span id="L185" class="LineNr">185 </span>  <span class="Constant">local-scope</span>
 <span id="L186" class="LineNr">186 </span>  <span class="Constant">load-ingredients</span>
 <span id="L187" class="LineNr">187 </span>  <span class="Comment"># skip whitespace</span>
@@ -256,7 +256,7 @@ if ('onhashchange' in window) {
 <span id="L192" class="LineNr">192 </span>  <span class="Delimiter">{</span>
 <span id="L193" class="LineNr">193 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> pair?
 <span id="L194" class="LineNr">194 </span>  <span class="Conceal">¦</span> <span class="Comment"># atom</span>
-<span id="L195" class="LineNr">195 </span>  <span class="Conceal">¦</span> buf:&amp;:buffer <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
+<span id="L195" class="LineNr">195 </span>  <span class="Conceal">¦</span> buf:&amp;:<a href='061text.mu.html#L126'>buffer</a> <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
 <span id="L196" class="LineNr">196 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
 <span id="L197" class="LineNr">197 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> <a href='066stream.mu.html#L72'>end-of-stream?</a> in
 <span id="L198" class="LineNr">198 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
@@ -335,7 +335,7 @@ if ('onhashchange' in window) {
 <span id="L271" class="LineNr">271 </span>  <span class="Delimiter">}</span>
 <span id="L272" class="LineNr">272 </span>]
 <span id="L273" class="LineNr">273 </span>
-<span id="L274" class="LineNr">274 </span><span class="muRecipe">def</span> <a href='lambda-to-mu.mu.html#L274'>skip-whitespace</a> in:&amp;:stream:char<span class="muRecipe"> -&gt; </span>in:&amp;:stream:char [
+<span id="L274" class="LineNr">274 </span><span class="muRecipe">def</span> <a href='lambda-to-mu.mu.html#L274'>skip-whitespace</a> in:&amp;:<a href='066stream.mu.html#L2'>stream</a>:char<span class="muRecipe"> -&gt; </span>in:&amp;:<a href='066stream.mu.html#L2'>stream</a>:char [
 <span id="L275" class="LineNr">275 </span>  <span class="Constant">local-scope</span>
 <span id="L276" class="LineNr">276 </span>  <span class="Constant">load-ingredients</span>
 <span id="L277" class="LineNr">277 </span>  <span class="Delimiter">{</span>
@@ -352,12 +352,12 @@ if ('onhashchange' in window) {
 <span id="L288" class="LineNr">288 </span><span class="muRecipe">def</span> to-text x:&amp;:<a href='lambda-to-mu.mu.html#L31'>cell</a><span class="muRecipe"> -&gt; </span>out:text [
 <span id="L289" class="LineNr">289 </span>  <span class="Constant">local-scope</span>
 <span id="L290" class="LineNr">290 </span>  <span class="Constant">load-ingredients</span>
-<span id="L291" class="LineNr">291 </span>  buf:&amp;:buffer <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
+<span id="L291" class="LineNr">291 </span>  buf:&amp;:<a href='061text.mu.html#L126'>buffer</a> <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
 <span id="L292" class="LineNr">292 </span>  buf <span class="Special">&lt;-</span> to-buffer x, buf
 <span id="L293" class="LineNr">293 </span>  out <span class="Special">&lt;-</span> <a href='061text.mu.html#L328'>buffer-to-array</a> buf
 <span id="L294" class="LineNr">294 </span>]
 <span id="L295" class="LineNr">295 </span>
-<span id="L296" class="LineNr">296 </span><span class="muRecipe">def</span> to-buffer x:&amp;:<a href='lambda-to-mu.mu.html#L31'>cell</a>, buf:&amp;:buffer<span class="muRecipe"> -&gt; </span>buf:&amp;:buffer [
+<span id="L296" class="LineNr">296 </span><span class="muRecipe">def</span> to-buffer x:&amp;:<a href='lambda-to-mu.mu.html#L31'>cell</a>, buf:&amp;:<a href='061text.mu.html#L126'>buffer</a><span class="muRecipe"> -&gt; </span>buf:&amp;:<a href='061text.mu.html#L126'>buffer</a> [
 <span id="L297" class="LineNr">297 </span>  <span class="Constant">local-scope</span>
 <span id="L298" class="LineNr">298 </span>  <span class="Constant">load-ingredients</span>
 <span id="L299" class="LineNr">299 </span>  <span class="Comment"># base case: empty cell</span>
@@ -639,12 +639,12 @@ if ('onhashchange' in window) {
 <span id="L575" class="LineNr">575 </span><span class="muRecipe">def</span> to-mu in:&amp;:<a href='lambda-to-mu.mu.html#L31'>cell</a><span class="muRecipe"> -&gt; </span>out:text [
 <span id="L576" class="LineNr">576 </span>  <span class="Constant">local-scope</span>
 <span id="L577" class="LineNr">577 </span>  <span class="Constant">load-ingredients</span>
-<span id="L578" class="LineNr">578 </span>  buf:&amp;:buffer <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
+<span id="L578" class="LineNr">578 </span>  buf:&amp;:<a href='061text.mu.html#L126'>buffer</a> <span class="Special">&lt;-</span> <a href='061text.mu.html#L131'>new-buffer</a><span class="Constant"> 30</span>
 <span id="L579" class="LineNr">579 </span>  buf <span class="Special">&lt;-</span> to-mu in, buf
 <span id="L580" class="LineNr">580 </span>  out <span class="Special">&lt;-</span> <a href='061text.mu.html#L328'>buffer-to-array</a> buf
 <span id="L581" class="LineNr">581 </span>]
 <span id="L582" class="LineNr">582 </span>
-<span id="L583" class="LineNr">583 </span><span class="muRecipe">def</span> to-mu in:&amp;:<a href='lambda-to-mu.mu.html#L31'>cell</a>, buf:&amp;:buffer<span class="muRecipe"> -&gt; </span>buf:&amp;:buffer, result-name:text [
+<span id="L583" class="LineNr">583 </span><span class="muRecipe">def</span> to-mu in:&amp;:<a href='lambda-to-mu.mu.html#L31'>cell</a>, buf:&amp;:<a href='061text.mu.html#L126'>buffer</a><span class="muRecipe"> -&gt; </span>buf:&amp;:<a href='061text.mu.html#L126'>buffer</a>, result-name:text [
 <span id="L584" class="LineNr">584 </span>  <span class="Constant">local-scope</span>
 <span id="L585" class="LineNr">585 </span>  <span class="Constant">load-ingredients</span>
 <span id="L586" class="LineNr">586 </span>  <span class="Comment"># null cell? no change.</span>
diff --git a/html/nqueens.mu.html b/html/nqueens.mu.html
index 1c89c974..0e10c100 100644
--- a/html/nqueens.mu.html
+++ b/html/nqueens.mu.html
@@ -69,7 +69,7 @@ if ('onhashchange' in window) {
 <span id="L8" class="LineNr"> 8 </span>  file:num
 <span id="L9" class="LineNr"> 9 </span>]
 <span id="L10" class="LineNr">10 </span>
-<span id="L11" class="LineNr">11 </span><span class="muRecipe">def</span> <a href='nqueens.mu.html#L11'>nqueens</a> n:num, queens:&amp;:list:<a href='nqueens.mu.html#L6'>square</a><span class="muRecipe"> -&gt; </span>result:num, queens:&amp;:list:<a href='nqueens.mu.html#L6'>square</a> [
+<span id="L11" class="LineNr">11 </span><span class="muRecipe">def</span> <a href='nqueens.mu.html#L11'>nqueens</a> n:num, queens:&amp;:<a href='064list.mu.html#L6'>list</a>:<a href='nqueens.mu.html#L6'>square</a><span class="muRecipe"> -&gt; </span>result:num, queens:&amp;:<a href='064list.mu.html#L6'>list</a>:<a href='nqueens.mu.html#L6'>square</a> [
 <span id="L12" class="LineNr">12 </span>  <span class="Constant">local-scope</span>
 <span id="L13" class="LineNr">13 </span>  <span class="Constant">load-ingredients</span>
 <span id="L14" class="LineNr">14 </span>  <span class="Comment"># if 'queens' is already long enough, print it and return</span>
@@ -97,7 +97,7 @@ if ('onhashchange' in window) {
 <span id="L36" class="LineNr">36 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
 <span id="L37" class="LineNr">37 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> curr-conflicts?:bool <span class="Special">&lt;-</span> <a href='nqueens.mu.html#L49'>conflict?</a> curr, queens
 <span id="L38" class="LineNr">38 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> curr-conflicts?
-<span id="L39" class="LineNr">39 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> queens:&amp;:list:<a href='nqueens.mu.html#L6'>square</a> <span class="Special">&lt;-</span> push curr, queens
+<span id="L39" class="LineNr">39 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> queens:&amp;:<a href='064list.mu.html#L6'>list</a>:<a href='nqueens.mu.html#L6'>square</a> <span class="Special">&lt;-</span> push curr, queens
 <span id="L40" class="LineNr">40 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> sub-result:num <span class="Special">&lt;-</span> <a href='nqueens.mu.html#L11'>nqueens</a> n, queens
 <span id="L41" class="LineNr">41 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> result <span class="Special">&lt;-</span> add result, sub-result
 <span id="L42" class="LineNr">42 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> queens <span class="Special">&lt;-</span> <a href='064list.mu.html#L25'>rest</a> queens
@@ -107,7 +107,7 @@ if ('onhashchange' in window) {
 <span id="L46" class="LineNr">46 </span>  <span class="Delimiter">}</span>
 <span id="L47" class="LineNr">47 </span>]
 <span id="L48" class="LineNr">48 </span>
-<span id="L49" class="LineNr">49 </span><span class="muRecipe">def</span> <a href='nqueens.mu.html#L49'>conflict?</a> curr:<a href='nqueens.mu.html#L6'>square</a>, queens:&amp;:list:<a href='nqueens.mu.html#L6'>square</a><span class="muRecipe"> -&gt; </span>result:bool [
+<span id="L49" class="LineNr">49 </span><span class="muRecipe">def</span> <a href='nqueens.mu.html#L49'>conflict?</a> curr:<a href='nqueens.mu.html#L6'>square</a>, queens:&amp;:<a href='064list.mu.html#L6'>list</a>:<a href='nqueens.mu.html#L6'>square</a><span class="muRecipe"> -&gt; </span>result:bool [
 <span id="L50" class="LineNr">50 </span>  <span class="Constant">local-scope</span>
 <span id="L51" class="LineNr">51 </span>  <span class="Constant">load-ingredients</span>
 <span id="L52" class="LineNr">52 </span>  result1:bool <span class="Special">&lt;-</span> <a href='nqueens.mu.html#L58'>conflicting-file?</a> curr, queens
@@ -116,7 +116,7 @@ if ('onhashchange' in window) {
 <span id="L55" class="LineNr">55 </span>  <span class="muControl">return</span> result2
 <span id="L56" class="LineNr">56 </span>]
 <span id="L57" class="LineNr">57 </span>
-<span id="L58" class="LineNr">58 </span><span class="muRecipe">def</span> <a href='nqueens.mu.html#L58'>conflicting-file?</a> curr:<a href='nqueens.mu.html#L6'>square</a>, queens:&amp;:list:<a href='nqueens.mu.html#L6'>square</a><span class="muRecipe"> -&gt; </span>result:bool [
+<span id="L58" class="LineNr">58 </span><span class="muRecipe">def</span> <a href='nqueens.mu.html#L58'>conflicting-file?</a> curr:<a href='nqueens.mu.html#L6'>square</a>, queens:&amp;:<a href='064list.mu.html#L6'>list</a>:<a href='nqueens.mu.html#L6'>square</a><span class="muRecipe"> -&gt; </span>result:bool [
 <span id="L59" class="LineNr">59 </span>  <span class="Constant">local-scope</span>
 <span id="L60" class="LineNr">60 </span>  <span class="Constant">load-ingredients</span>
 <span id="L61" class="LineNr">61 </span>  curr-file:num <span class="Special">&lt;-</span> get curr, <span class="Constant">file:offset</span>
@@ -132,7 +132,7 @@ if ('onhashchange' in window) {
 <span id="L71" class="LineNr">71 </span>  <span class="muControl">return</span> <span class="Constant">0/no-conflict-found</span>
 <span id="L72" class="LineNr">72 </span>]
 <span id="L73" class="LineNr">73 </span>
-<span id="L74" class="LineNr">74 </span><span class="muRecipe">def</span> <a href='nqueens.mu.html#L74'>conflicting-diagonal?</a> curr:<a href='nqueens.mu.html#L6'>square</a>, queens:&amp;:list:<a href='nqueens.mu.html#L6'>square</a><span class="muRecipe"> -&gt; </span>result:bool [
+<span id="L74" class="LineNr">74 </span><span class="muRecipe">def</span> <a href='nqueens.mu.html#L74'>conflicting-diagonal?</a> curr:<a href='nqueens.mu.html#L6'>square</a>, queens:&amp;:<a href='064list.mu.html#L6'>list</a>:<a href='nqueens.mu.html#L6'>square</a><span class="muRecipe"> -&gt; </span>result:bool [
 <span id="L75" class="LineNr">75 </span>  <span class="Constant">local-scope</span>
 <span id="L76" class="LineNr">76 </span>  <span class="Constant">load-ingredients</span>
 <span id="L77" class="LineNr">77 </span>  curr-rank:num <span class="Special">&lt;-</span> get curr, <span class="Constant">rank:offset</span>