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authorKartik K. Agaram <vc@akkartik.com>2017-03-07 01:41:48 -0800
committerKartik K. Agaram <vc@akkartik.com>2017-03-07 01:41:48 -0800
commit9e751bb8c0cdf771d34c839cb6591d892b8e62de (patch)
tree2ac86646cd0aa204626a4fc842dbe8b2aa526817 /html/075channel.mu.html
parent848ebc1e6335cd1a34e07662242a367fefbc5229 (diff)
downloadmu-9e751bb8c0cdf771d34c839cb6591d892b8e62de.tar.gz
3761
Diffstat (limited to 'html/075channel.mu.html')
-rw-r--r--html/075channel.mu.html375
1 files changed, 188 insertions, 187 deletions
diff --git a/html/075channel.mu.html b/html/075channel.mu.html
index 5c486beb..a0493e7e 100644
--- a/html/075channel.mu.html
+++ b/html/075channel.mu.html
@@ -15,17 +15,18 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 a { text-decoration: none; }
 a:hover { text-decoration: underline; }
 * { font-size: 12pt; font-size: 1em; }
-.muData { color: #ffff00; }
-.muControl { color: #c0a020; }
+.Conceal { color: #4e4e4e; }
+.muScenario { color: #00af00; }
 .Special { color: #c00000; }
 .Delimiter { color: #800080; }
 .SalientComment { color: #00ffff; }
 .Comment { color: #9090ff; }
 .Constant { color: #00a0a0; }
 .LineNr { color: #444444; }
-.CommentedCode { color: #6c6c6c; }
 .muRecipe { color: #ff8700; }
-.muScenario { color: #00af00; }
+.muControl { color: #c0a020; }
+.CommentedCode { color: #6c6c6c; }
+.muData { color: #ffff00; }
 -->
 </style>
 
@@ -78,14 +79,14 @@ if ('onhashchange' in window) {
 <span id="L16" class="LineNr"> 16 </span>
 <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="Constant">local-scope</span>
-<span id="L20" class="LineNr"> 20 </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>    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>    10:num/<span class="Special">raw</span>, 11:bool/<span class="Special">raw</span>, source <span class="Special">&lt;-</span> read source
+<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="L23" class="LineNr"> 23 </span>  ]
 <span id="L24" class="LineNr"> 24 </span>  memory-should-contain [
-<span id="L25" class="LineNr"> 25 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 34</span>
-<span id="L26" class="LineNr"> 26 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># read was successful</span>
+<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>
+<span id="L26" class="LineNr"> 26 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># read was successful</span>
 <span id="L27" class="LineNr"> 27 </span>  ]
 <span id="L28" class="LineNr"> 28 </span>]
 <span id="L29" class="LineNr"> 29 </span>
@@ -136,17 +137,17 @@ if ('onhashchange' in window) {
 <span id="L74" class="LineNr"> 74 </span><span class="CommentedCode">#?   $print [write], 10/newline</span>
 <span id="L75" class="LineNr"> 75 </span>  <span class="Delimiter">{</span>
 <span id="L76" class="LineNr"> 76 </span><span class="CommentedCode">#?     $print [trying to acquire lock for writing], 10/newline</span>
-<span id="L77" class="LineNr"> 77 </span>    wait-for-reset-then-set lock
+<span id="L77" class="LineNr"> 77 </span>  <span class="Conceal">¦</span> wait-for-reset-then-set lock
 <span id="L78" class="LineNr"> 78 </span><span class="CommentedCode">#?     $print [lock acquired for writing], 10/newline</span>
-<span id="L79" class="LineNr"> 79 </span>    full?:bool <span class="Special">&lt;-</span> <a href='075channel.mu.html#L361'>channel-full?</a> chan
-<span id="L80" class="LineNr"> 80 </span>    <span class="muControl">break-unless</span> full?
+<span id="L79" class="LineNr"> 79 </span>  <span class="Conceal">¦</span> full?:bool <span class="Special">&lt;-</span> <a href='075channel.mu.html#L361'>channel-full?</a> chan
+<span id="L80" class="LineNr"> 80 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> full?
 <span id="L81" class="LineNr"> 81 </span><span class="CommentedCode">#?     $print [but channel is full; relinquishing lock], 10/newline</span>
-<span id="L82" class="LineNr"> 82 </span>    <span class="Comment"># channel is full; relinquish lock and give a reader the opportunity to</span>
-<span id="L83" class="LineNr"> 83 </span>    <span class="Comment"># create room on it</span>
-<span id="L84" class="LineNr"> 84 </span>    reset lock
-<span id="L85" class="LineNr"> 85 </span>    current-routine-is-blocked
-<span id="L86" class="LineNr"> 86 </span>    switch  <span class="Comment"># avoid spinlocking</span>
-<span id="L87" class="LineNr"> 87 </span>    <span class="muControl">loop</span>
+<span id="L82" class="LineNr"> 82 </span>  <span class="Conceal">¦</span> <span class="Comment"># channel is full; relinquish lock and give a reader the opportunity to</span>
+<span id="L83" class="LineNr"> 83 </span>  <span class="Conceal">¦</span> <span class="Comment"># create room on it</span>
+<span id="L84" class="LineNr"> 84 </span>  <span class="Conceal">¦</span> reset lock
+<span id="L85" class="LineNr"> 85 </span>  <span class="Conceal">¦</span> current-routine-is-blocked
+<span id="L86" class="LineNr"> 86 </span>  <span class="Conceal">¦</span> switch  <span class="Comment"># avoid spinlocking</span>
+<span id="L87" class="LineNr"> 87 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L88" class="LineNr"> 88 </span>  <span class="Delimiter">}</span>
 <span id="L89" class="LineNr"> 89 </span>  current-routine-is-unblocked
 <span id="L90" class="LineNr"> 90 </span><span class="CommentedCode">#?   $print [performing write], 10/newline</span>
@@ -158,11 +159,11 @@ if ('onhashchange' in window) {
 <span id="L96" class="LineNr"> 96 </span>  <span class="Comment"># mark its slot as filled</span>
 <span id="L97" class="LineNr"> 97 </span>  free <span class="Special">&lt;-</span> add free,<span class="Constant"> 1</span>
 <span id="L98" class="LineNr"> 98 </span>  <span class="Delimiter">{</span>
-<span id="L99" class="LineNr"> 99 </span>    <span class="Comment"># wrap free around to 0 if necessary</span>
-<span id="L100" class="LineNr">100 </span>    len:num <span class="Special">&lt;-</span> length *circular-buffer
-<span id="L101" class="LineNr">101 </span>    at-end?:bool <span class="Special">&lt;-</span> greater-or-equal free, len
-<span id="L102" class="LineNr">102 </span>    <span class="muControl">break-unless</span> at-end?
-<span id="L103" class="LineNr">103 </span>    free <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
+<span id="L99" class="LineNr"> 99 </span>  <span class="Conceal">¦</span> <span class="Comment"># wrap free around to 0 if necessary</span>
+<span id="L100" class="LineNr">100 </span>  <span class="Conceal">¦</span> len:num <span class="Special">&lt;-</span> length *circular-buffer
+<span id="L101" class="LineNr">101 </span>  <span class="Conceal">¦</span> at-end?:bool <span class="Special">&lt;-</span> greater-or-equal free, len
+<span id="L102" class="LineNr">102 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> at-end?
+<span id="L103" class="LineNr">103 </span>  <span class="Conceal">¦</span> free <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
 <span id="L104" class="LineNr">104 </span>  <span class="Delimiter">}</span>
 <span id="L105" class="LineNr">105 </span>  <span class="Comment"># write back</span>
 <span id="L106" class="LineNr">106 </span>  *chan <span class="Special">&lt;-</span> put *chan, <span class="Constant">first-free:offset</span>, free
@@ -181,18 +182,18 @@ if ('onhashchange' in window) {
 <span id="L119" class="LineNr">119 </span><span class="CommentedCode">#?   $print [read], 10/newline</span>
 <span id="L120" class="LineNr">120 </span>  <span class="Delimiter">{</span>
 <span id="L121" class="LineNr">121 </span><span class="CommentedCode">#?     $print [trying to acquire lock for reading], 10/newline</span>
-<span id="L122" class="LineNr">122 </span>    wait-for-reset-then-set lock
+<span id="L122" class="LineNr">122 </span>  <span class="Conceal">¦</span> wait-for-reset-then-set lock
 <span id="L123" class="LineNr">123 </span><span class="CommentedCode">#?     $print [lock acquired for reading], 10/newline</span>
-<span id="L124" class="LineNr">124 </span>    empty?:bool <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> chan
-<span id="L125" class="LineNr">125 </span>    <span class="muControl">break-unless</span> empty?
+<span id="L124" class="LineNr">124 </span>  <span class="Conceal">¦</span> empty?:bool <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> chan
+<span id="L125" class="LineNr">125 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> empty?
 <span id="L126" class="LineNr">126 </span><span class="CommentedCode">#?     $print [but channel is empty; relinquishing lock], 10/newline</span>
-<span id="L127" class="LineNr">127 </span>    <span class="Comment"># channel is empty; relinquish lock and give a writer the opportunity to</span>
-<span id="L128" class="LineNr">128 </span>    <span class="Comment"># add to it</span>
-<span id="L129" class="LineNr">129 </span>    reset lock
-<span id="L130" class="LineNr">130 </span>    current-routine-is-blocked
-<span id="L131" class="LineNr">131 </span><span class="Constant">    <a href='075channel.mu.html#L131'>&lt;channel-read-empty&gt;</a></span>
-<span id="L132" class="LineNr">132 </span>    switch  <span class="Comment"># avoid spinlocking</span>
-<span id="L133" class="LineNr">133 </span>    <span class="muControl">loop</span>
+<span id="L127" class="LineNr">127 </span>  <span class="Conceal">¦</span> <span class="Comment"># channel is empty; relinquish lock and give a writer the opportunity to</span>
+<span id="L128" class="LineNr">128 </span>  <span class="Conceal">¦</span> <span class="Comment"># add to it</span>
+<span id="L129" class="LineNr">129 </span>  <span class="Conceal">¦</span> reset lock
+<span id="L130" class="LineNr">130 </span>  <span class="Conceal">¦</span> current-routine-is-blocked
+<span id="L131" class="LineNr">131 </span><span class="Constant">  </span><span class="Conceal">¦</span><span class="Constant"> <a href='075channel.mu.html#L131'>&lt;channel-read-empty&gt;</a></span>
+<span id="L132" class="LineNr">132 </span>  <span class="Conceal">¦</span> switch  <span class="Comment"># avoid spinlocking</span>
+<span id="L133" class="LineNr">133 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L134" class="LineNr">134 </span>  <span class="Delimiter">}</span>
 <span id="L135" class="LineNr">135 </span>  current-routine-is-unblocked
 <span id="L136" class="LineNr">136 </span>  <span class="Comment"># pull result off</span>
@@ -205,11 +206,11 @@ if ('onhashchange' in window) {
 <span id="L143" class="LineNr">143 </span>  <span class="Comment"># mark its slot as empty</span>
 <span id="L144" class="LineNr">144 </span>  full <span class="Special">&lt;-</span> add full,<span class="Constant"> 1</span>
 <span id="L145" class="LineNr">145 </span>  <span class="Delimiter">{</span>
-<span id="L146" class="LineNr">146 </span>    <span class="Comment"># wrap full around to 0 if necessary</span>
-<span id="L147" class="LineNr">147 </span>    len:num <span class="Special">&lt;-</span> length *circular-buffer
-<span id="L148" class="LineNr">148 </span>    at-end?:bool <span class="Special">&lt;-</span> greater-or-equal full, len
-<span id="L149" class="LineNr">149 </span>    <span class="muControl">break-unless</span> at-end?
-<span id="L150" class="LineNr">150 </span>    full <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
+<span id="L146" class="LineNr">146 </span>  <span class="Conceal">¦</span> <span class="Comment"># wrap full around to 0 if necessary</span>
+<span id="L147" class="LineNr">147 </span>  <span class="Conceal">¦</span> len:num <span class="Special">&lt;-</span> length *circular-buffer
+<span id="L148" class="LineNr">148 </span>  <span class="Conceal">¦</span> at-end?:bool <span class="Special">&lt;-</span> greater-or-equal full, len
+<span id="L149" class="LineNr">149 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> at-end?
+<span id="L150" class="LineNr">150 </span>  <span class="Conceal">¦</span> full <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
 <span id="L151" class="LineNr">151 </span>  <span class="Delimiter">}</span>
 <span id="L152" class="LineNr">152 </span>  <span class="Comment"># write back</span>
 <span id="L153" class="LineNr">153 </span>  *chan <span class="Special">&lt;-</span> put *chan, <span class="Constant">first-full:offset</span>, full
@@ -225,23 +226,23 @@ if ('onhashchange' in window) {
 <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>
 <span id="L165" class="LineNr">165 </span>  <span class="Delimiter">{</span>
-<span id="L166" class="LineNr">166 </span>    empty?:bool <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> chan
-<span id="L167" class="LineNr">167 </span>    <span class="muControl">break-if</span> empty?
-<span id="L168" class="LineNr">168 </span>    _, _, in <span class="Special">&lt;-</span> read in
+<span id="L166" class="LineNr">166 </span>  <span class="Conceal">¦</span> empty?:bool <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> chan
+<span id="L167" class="LineNr">167 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> empty?
+<span id="L168" class="LineNr">168 </span>  <span class="Conceal">¦</span> _, _, in <span class="Special">&lt;-</span> read in
 <span id="L169" class="LineNr">169 </span>  <span class="Delimiter">}</span>
 <span id="L170" class="LineNr">170 </span>]
 <span id="L171" class="LineNr">171 </span>
 <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="Constant">local-scope</span>
-<span id="L175" class="LineNr">175 </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="L176" class="LineNr">176 </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>    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>    11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-free:offset</span>
+<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="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>
 <span id="L179" class="LineNr">179 </span>  ]
 <span id="L180" class="LineNr">180 </span>  memory-should-contain [
-<span id="L181" class="LineNr">181 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># first-full</span>
-<span id="L182" class="LineNr">182 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># first-free</span>
+<span id="L181" class="LineNr">181 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># first-full</span>
+<span id="L182" class="LineNr">182 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># first-free</span>
 <span id="L183" class="LineNr">183 </span>  ]
 <span id="L184" class="LineNr">184 </span>]
 <span id="L185" class="LineNr">185 </span>
@@ -249,14 +250,14 @@ if ('onhashchange' in window) {
 <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="L189" class="LineNr">189 </span>  run [
-<span id="L190" class="LineNr">190 </span>    sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 34</span>
-<span id="L191" class="LineNr">191 </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>    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>    11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-free:offset</span>
+<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="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>
 <span id="L194" class="LineNr">194 </span>  ]
 <span id="L195" class="LineNr">195 </span>  memory-should-contain [
-<span id="L196" class="LineNr">196 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># first-full</span>
-<span id="L197" class="LineNr">197 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># first-free</span>
+<span id="L196" class="LineNr">196 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># first-full</span>
+<span id="L197" class="LineNr">197 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># first-free</span>
 <span id="L198" class="LineNr">198 </span>  ]
 <span id="L199" class="LineNr">199 </span>]
 <span id="L200" class="LineNr">200 </span>
@@ -265,14 +266,14 @@ if ('onhashchange' in window) {
 <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="L205" class="LineNr">205 </span>  run [
-<span id="L206" class="LineNr">206 </span>    _, _, source <span class="Special">&lt;-</span> read source
-<span id="L207" class="LineNr">207 </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>    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>    11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-free:offset</span>
+<span id="L206" class="LineNr">206 </span>  <span class="Conceal">¦</span> _, _, source <span class="Special">&lt;-</span> read source
+<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>
 <span id="L210" class="LineNr">210 </span>  ]
 <span id="L211" class="LineNr">211 </span>  memory-should-contain [
-<span id="L212" class="LineNr">212 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># first-full</span>
-<span id="L213" class="LineNr">213 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># first-free</span>
+<span id="L212" class="LineNr">212 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># first-full</span>
+<span id="L213" class="LineNr">213 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># first-free</span>
 <span id="L214" class="LineNr">214 </span>  ]
 <span id="L215" class="LineNr">215 </span>]
 <span id="L216" class="LineNr">216 </span>
@@ -285,35 +286,35 @@ if ('onhashchange' in window) {
 <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="L225" class="LineNr">225 </span>  run [
-<span id="L226" class="LineNr">226 </span>    <span class="Comment"># first-free will now be 1</span>
-<span id="L227" class="LineNr">227 </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>    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="Comment"># write second value, verify that first-free wraps</span>
-<span id="L230" class="LineNr">230 </span>    sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 34</span>
-<span id="L231" class="LineNr">231 </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="Comment"># read second value, verify that first-full wraps</span>
-<span id="L233" class="LineNr">233 </span>    _, _, source <span class="Special">&lt;-</span> read source
-<span id="L234" class="LineNr">234 </span>    30:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-full:offset</span>
+<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="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="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 [
-<span id="L237" class="LineNr">237 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># first-free after first write</span>
-<span id="L238" class="LineNr">238 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># first-full after first read</span>
-<span id="L239" class="LineNr">239 </span>   <span class="Constant"> 20</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># first-free after second write, wrapped</span>
-<span id="L240" class="LineNr">240 </span>   <span class="Constant"> 30</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># first-full after second read, wrapped</span>
+<span id="L237" class="LineNr">237 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># first-free after first write</span>
+<span id="L238" class="LineNr">238 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># first-full after first read</span>
+<span id="L239" class="LineNr">239 </span>  <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># first-free after second write, wrapped</span>
+<span id="L240" class="LineNr">240 </span>  <span class="Conceal">¦</span><span class="Constant"> 30</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># first-full after second read, wrapped</span>
 <span id="L241" class="LineNr">241 </span>  ]
 <span id="L242" class="LineNr">242 </span>]
 <span id="L243" class="LineNr">243 </span>
 <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="Constant">local-scope</span>
-<span id="L247" class="LineNr">247 </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="L248" class="LineNr">248 </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>    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>    11:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L361'>channel-full?</a> chan
+<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="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
 <span id="L251" class="LineNr">251 </span>  ]
 <span id="L252" class="LineNr">252 </span>  memory-should-contain [
-<span id="L253" class="LineNr">253 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># empty?</span>
-<span id="L254" class="LineNr">254 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># full?</span>
+<span id="L253" class="LineNr">253 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># empty?</span>
+<span id="L254" class="LineNr">254 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># full?</span>
 <span id="L255" class="LineNr">255 </span>  ]
 <span id="L256" class="LineNr">256 </span>]
 <span id="L257" class="LineNr">257 </span>
@@ -322,13 +323,13 @@ if ('onhashchange' in window) {
 <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="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>    sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 34</span>
-<span id="L264" class="LineNr">264 </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>    11:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L361'>channel-full?</a> chan
+<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="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>  ]
 <span id="L267" class="LineNr">267 </span>  memory-should-contain [
-<span id="L268" class="LineNr">268 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># empty?</span>
-<span id="L269" class="LineNr">269 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># full?</span>
+<span id="L268" class="LineNr">268 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># empty?</span>
+<span id="L269" class="LineNr">269 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># full?</span>
 <span id="L270" class="LineNr">270 </span>  ]
 <span id="L271" class="LineNr">271 </span>]
 <span id="L272" class="LineNr">272 </span>
@@ -337,13 +338,13 @@ if ('onhashchange' in window) {
 <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="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>    sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink,<span class="Constant"> 34</span>
-<span id="L279" class="LineNr">279 </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>    11:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L361'>channel-full?</a> chan
+<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="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>  ]
 <span id="L282" class="LineNr">282 </span>  memory-should-contain [
-<span id="L283" class="LineNr">283 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># empty?</span>
-<span id="L284" class="LineNr">284 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># full?</span>
+<span id="L283" class="LineNr">283 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># empty?</span>
+<span id="L284" class="LineNr">284 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># full?</span>
 <span id="L285" class="LineNr">285 </span>  ]
 <span id="L286" class="LineNr">286 </span>]
 <span id="L287" class="LineNr">287 </span>
@@ -353,13 +354,13 @@ if ('onhashchange' in window) {
 <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="L293" class="LineNr">293 </span>  run [
-<span id="L294" class="LineNr">294 </span>    _, _, source <span class="Special">&lt;-</span> read source
-<span id="L295" class="LineNr">295 </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>    11:bool/<span class="Special">raw</span> <span class="Special">&lt;-</span> <a href='075channel.mu.html#L361'>channel-full?</a> chan
+<span id="L294" class="LineNr">294 </span>  <span class="Conceal">¦</span> _, _, source <span class="Special">&lt;-</span> read source
+<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>  ]
 <span id="L298" class="LineNr">298 </span>  memory-should-contain [
-<span id="L299" class="LineNr">299 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># empty?</span>
-<span id="L300" class="LineNr">300 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># full?</span>
+<span id="L299" class="LineNr">299 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># empty?</span>
+<span id="L300" class="LineNr">300 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># full?</span>
 <span id="L301" class="LineNr">301 </span>  ]
 <span id="L302" class="LineNr">302 </span>]
 <span id="L303" class="LineNr">303 </span>
@@ -399,10 +400,10 @@ if ('onhashchange' in window) {
 <span id="L337" class="LineNr">337 </span><span class="muRecipe">after</span> <span class="Constant"><a href='075channel.mu.html#L131'>&lt;channel-read-empty&gt;</a></span> [
 <span id="L338" class="LineNr">338 </span>  closed?:bool <span class="Special">&lt;-</span> get *chan, <span class="Constant">closed?:offset</span>
 <span id="L339" class="LineNr">339 </span>  <span class="Delimiter">{</span>
-<span id="L340" class="LineNr">340 </span>    <span class="muControl">break-unless</span> closed?
-<span id="L341" class="LineNr">341 </span>    empty-result:&amp;:_elem <span class="Special">&lt;-</span> new <span class="Constant">_elem:type</span>
-<span id="L342" class="LineNr">342 </span>    current-routine-is-unblocked
-<span id="L343" class="LineNr">343 </span>    <span class="muControl">return</span> *empty-result, <span class="Constant">1/true</span>
+<span id="L340" class="LineNr">340 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> closed?
+<span id="L341" class="LineNr">341 </span>  <span class="Conceal">¦</span> empty-result:&amp;:_elem <span class="Special">&lt;-</span> new <span class="Constant">_elem:type</span>
+<span id="L342" class="LineNr">342 </span>  <span class="Conceal">¦</span> current-routine-is-unblocked
+<span id="L343" class="LineNr">343 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span> *empty-result, <span class="Constant">1/true</span>
 <span id="L344" class="LineNr">344 </span>  <span class="Delimiter">}</span>
 <span id="L345" class="LineNr">345 </span>]
 <span id="L346" class="LineNr">346 </span>
@@ -427,11 +428,11 @@ if ('onhashchange' in window) {
 <span id="L365" class="LineNr">365 </span>  tmp:num <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-free:offset</span>
 <span id="L366" class="LineNr">366 </span>  tmp <span class="Special">&lt;-</span> add tmp,<span class="Constant"> 1</span>
 <span id="L367" class="LineNr">367 </span>  <span class="Delimiter">{</span>
-<span id="L368" class="LineNr">368 </span>    <span class="Comment"># if tmp == chan.capacity, tmp = 0</span>
-<span id="L369" class="LineNr">369 </span>    len:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L379'>capacity</a> chan
-<span id="L370" class="LineNr">370 </span>    at-end?:bool <span class="Special">&lt;-</span> greater-or-equal tmp, len
-<span id="L371" class="LineNr">371 </span>    <span class="muControl">break-unless</span> at-end?
-<span id="L372" class="LineNr">372 </span>    tmp <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
+<span id="L368" class="LineNr">368 </span>  <span class="Conceal">¦</span> <span class="Comment"># if tmp == chan.capacity, tmp = 0</span>
+<span id="L369" class="LineNr">369 </span>  <span class="Conceal">¦</span> len:num <span class="Special">&lt;-</span> <a href='075channel.mu.html#L379'>capacity</a> chan
+<span id="L370" class="LineNr">370 </span>  <span class="Conceal">¦</span> at-end?:bool <span class="Special">&lt;-</span> greater-or-equal tmp, len
+<span id="L371" class="LineNr">371 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> at-end?
+<span id="L372" class="LineNr">372 </span>  <span class="Conceal">¦</span> tmp <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
 <span id="L373" class="LineNr">373 </span>  <span class="Delimiter">}</span>
 <span id="L374" class="LineNr">374 </span>  <span class="Comment"># return chan.first-full == tmp</span>
 <span id="L375" class="LineNr">375 </span>  full:num <span class="Special">&lt;-</span> get *chan, <span class="Constant">first-full:offset</span>
@@ -453,96 +454,96 @@ if ('onhashchange' in window) {
 <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>    line:&amp;:<a href='061text.mu.html#L127'>buffer</a> <span class="Special">&lt;-</span> <a href='061text.mu.html#L132'>new-buffer</a><span class="Constant"> 30</span>
-<span id="L395" class="LineNr">395 </span>    <span class="Comment"># read characters from 'in' until newline, copy into line</span>
-<span id="L396" class="LineNr">396 </span>    <span class="Delimiter">{</span>
-<span id="L397" class="LineNr">397 </span><span class="Constant">      +next-character</span>
-<span id="L398" class="LineNr">398 </span>      c:char, eof?:bool, in <span class="Special">&lt;-</span> read in
-<span id="L399" class="LineNr">399 </span>      <span class="muControl">break-if</span> eof?
-<span id="L400" class="LineNr">400 </span>      <span class="Comment"># drop a character on backspace</span>
-<span id="L401" class="LineNr">401 </span>      <span class="Delimiter">{</span>
-<span id="L402" class="LineNr">402 </span>        <span class="Comment"># special-case: if it's a backspace</span>
-<span id="L403" class="LineNr">403 </span>        backspace?:bool <span class="Special">&lt;-</span> equal c,<span class="Constant"> 8</span>
-<span id="L404" class="LineNr">404 </span>        <span class="muControl">break-unless</span> backspace?
-<span id="L405" class="LineNr">405 </span>        <span class="Comment"># drop previous character</span>
-<span id="L406" class="LineNr">406 </span>        <span class="Delimiter">{</span>
-<span id="L407" class="LineNr">407 </span>          buffer-length:num <span class="Special">&lt;-</span> get *line, <span class="Constant">length:offset</span>
-<span id="L408" class="LineNr">408 </span>          buffer-empty?:bool <span class="Special">&lt;-</span> equal buffer-length,<span class="Constant"> 0</span>
-<span id="L409" class="LineNr">409 </span>          <span class="muControl">break-if</span> buffer-empty?
-<span id="L410" class="LineNr">410 </span>          buffer-length <span class="Special">&lt;-</span> subtract buffer-length,<span class="Constant"> 1</span>
-<span id="L411" class="LineNr">411 </span>          *line <span class="Special">&lt;-</span> put *line, <span class="Constant">length:offset</span>, buffer-length
-<span id="L412" class="LineNr">412 </span>        <span class="Delimiter">}</span>
-<span id="L413" class="LineNr">413 </span>        <span class="Comment"># and don't append this one</span>
-<span id="L414" class="LineNr">414 </span>        <span class="muControl">loop</span> <span class="Constant">+next-character</span>
-<span id="L415" class="LineNr">415 </span>      <span class="Delimiter">}</span>
-<span id="L416" class="LineNr">416 </span>      <span class="Comment"># append anything else</span>
-<span id="L417" class="LineNr">417 </span>      line <span class="Special">&lt;-</span> append line, c
-<span id="L418" class="LineNr">418 </span>      line-done?:bool <span class="Special">&lt;-</span> equal c, <span class="Constant">10/newline</span>
-<span id="L419" class="LineNr">419 </span>      <span class="muControl">break-if</span> line-done?
-<span id="L420" class="LineNr">420 </span>      <span class="muControl">loop</span>
-<span id="L421" class="LineNr">421 </span>    <span class="Delimiter">}</span>
-<span id="L422" class="LineNr">422 </span>    <span class="Comment"># copy line into 'buffered-out'</span>
-<span id="L423" class="LineNr">423 </span>    i:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
-<span id="L424" class="LineNr">424 </span>    line-contents:text <span class="Special">&lt;-</span> get *line, <span class="Constant">data:offset</span>
-<span id="L425" class="LineNr">425 </span>    max:num <span class="Special">&lt;-</span> get *line, <span class="Constant">length:offset</span>
-<span id="L426" class="LineNr">426 </span>    <span class="Delimiter">{</span>
-<span id="L427" class="LineNr">427 </span>      done?:bool <span class="Special">&lt;-</span> greater-or-equal i, max
-<span id="L428" class="LineNr">428 </span>      <span class="muControl">break-if</span> done?
-<span id="L429" class="LineNr">429 </span>      c:char <span class="Special">&lt;-</span> index *line-contents, i
-<span id="L430" class="LineNr">430 </span>      buffered-out <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> buffered-out, c
-<span id="L431" class="LineNr">431 </span>      i <span class="Special">&lt;-</span> add i,<span class="Constant"> 1</span>
-<span id="L432" class="LineNr">432 </span>      <span class="muControl">loop</span>
-<span id="L433" class="LineNr">433 </span>    <span class="Delimiter">}</span>
-<span id="L434" class="LineNr">434 </span>    <span class="Delimiter">{</span>
-<span id="L435" class="LineNr">435 </span>      <span class="muControl">break-unless</span> eof?
-<span id="L436" class="LineNr">436 </span>      buffered-out <span class="Special">&lt;-</span> close buffered-out
-<span id="L437" class="LineNr">437 </span>      <span class="muControl">return</span>
-<span id="L438" class="LineNr">438 </span>    <span class="Delimiter">}</span>
-<span id="L439" class="LineNr">439 </span>    <span class="muControl">loop</span>
+<span id="L394" class="LineNr">394 </span>  <span class="Conceal">¦</span> line:&amp;:<a href='061text.mu.html#L127'>buffer</a> <span class="Special">&lt;-</span> <a href='061text.mu.html#L132'>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>
+<span id="L398" class="LineNr">398 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> c:char, eof?:bool, in <span class="Special">&lt;-</span> read in
+<span id="L399" class="LineNr">399 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> eof?
+<span id="L400" class="LineNr">400 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># drop a character on backspace</span>
+<span id="L401" class="LineNr">401 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">{</span>
+<span id="L402" class="LineNr">402 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># special-case: if it's a backspace</span>
+<span id="L403" class="LineNr">403 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> backspace?:bool <span class="Special">&lt;-</span> equal c,<span class="Constant"> 8</span>
+<span id="L404" class="LineNr">404 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> backspace?
+<span id="L405" class="LineNr">405 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># drop previous character</span>
+<span id="L406" class="LineNr">406 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">{</span>
+<span id="L407" class="LineNr">407 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> buffer-length:num <span class="Special">&lt;-</span> get *line, <span class="Constant">length:offset</span>
+<span id="L408" class="LineNr">408 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> buffer-empty?:bool <span class="Special">&lt;-</span> equal buffer-length,<span class="Constant"> 0</span>
+<span id="L409" class="LineNr">409 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> buffer-empty?
+<span id="L410" class="LineNr">410 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> buffer-length <span class="Special">&lt;-</span> subtract buffer-length,<span class="Constant"> 1</span>
+<span id="L411" class="LineNr">411 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> *line <span class="Special">&lt;-</span> put *line, <span class="Constant">length:offset</span>, buffer-length
+<span id="L412" class="LineNr">412 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L413" class="LineNr">413 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># and don't append this one</span>
+<span id="L414" class="LineNr">414 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">loop</span> <span class="Constant">+next-character</span>
+<span id="L415" class="LineNr">415 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L416" class="LineNr">416 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># append anything else</span>
+<span id="L417" class="LineNr">417 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> line <span class="Special">&lt;-</span> append line, c
+<span id="L418" class="LineNr">418 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> line-done?:bool <span class="Special">&lt;-</span> equal c, <span class="Constant">10/newline</span>
+<span id="L419" class="LineNr">419 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> line-done?
+<span id="L420" class="LineNr">420 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">loop</span>
+<span id="L421" class="LineNr">421 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L422" class="LineNr">422 </span>  <span class="Conceal">¦</span> <span class="Comment"># copy line into 'buffered-out'</span>
+<span id="L423" class="LineNr">423 </span>  <span class="Conceal">¦</span> i:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
+<span id="L424" class="LineNr">424 </span>  <span class="Conceal">¦</span> line-contents:text <span class="Special">&lt;-</span> get *line, <span class="Constant">data:offset</span>
+<span id="L425" class="LineNr">425 </span>  <span class="Conceal">¦</span> max:num <span class="Special">&lt;-</span> get *line, <span class="Constant">length:offset</span>
+<span id="L426" class="LineNr">426 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
+<span id="L427" class="LineNr">427 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> greater-or-equal i, max
+<span id="L428" class="LineNr">428 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
+<span id="L429" class="LineNr">429 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> c:char <span class="Special">&lt;-</span> index *line-contents, i
+<span id="L430" class="LineNr">430 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> buffered-out <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> buffered-out, c
+<span id="L431" class="LineNr">431 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> i <span class="Special">&lt;-</span> add i,<span class="Constant"> 1</span>
+<span id="L432" class="LineNr">432 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">loop</span>
+<span id="L433" class="LineNr">433 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L434" class="LineNr">434 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
+<span id="L435" class="LineNr">435 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-unless</span> eof?
+<span id="L436" class="LineNr">436 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> buffered-out <span class="Special">&lt;-</span> close buffered-out
+<span id="L437" class="LineNr">437 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">return</span>
+<span id="L438" class="LineNr">438 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L439" class="LineNr">439 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L440" class="LineNr">440 </span>  <span class="Delimiter">}</span>
 <span id="L441" class="LineNr">441 </span>]
 <span id="L442" class="LineNr">442 </span>
 <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="Constant">local-scope</span>
-<span id="L446" class="LineNr">446 </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>    _, 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="L448" class="LineNr">448 </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>    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>    assert empty?, <span class="Constant">[ </span>
+<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="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="Comment"># buffer stdin into buffered-stdin, try to read from buffered-stdin</span>
-<span id="L453" class="LineNr">453 </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="L454" class="LineNr">454 </span>    wait-for-routine-to-block buffer-routine
-<span id="L455" class="LineNr">455 </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>    assert empty?:bool, <span class="Constant">[ </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="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="Comment"># write 'a'</span>
-<span id="L459" class="LineNr">459 </span>    sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">97/a</span>
-<span id="L460" class="LineNr">460 </span>    restart buffer-routine
-<span id="L461" class="LineNr">461 </span>    wait-for-routine-to-block buffer-routine
-<span id="L462" class="LineNr">462 </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>    assert empty?:bool, <span class="Constant">[ </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="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="Comment"># write 'b'</span>
-<span id="L466" class="LineNr">466 </span>    sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">98/b</span>
-<span id="L467" class="LineNr">467 </span>    restart buffer-routine
-<span id="L468" class="LineNr">468 </span>    wait-for-routine-to-block buffer-routine
-<span id="L469" class="LineNr">469 </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>    assert empty?:bool, <span class="Constant">[ </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="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="Comment"># write newline</span>
-<span id="L473" class="LineNr">473 </span>    sink <span class="Special">&lt;-</span> <a href='075channel.mu.html#L66'>write</a> sink, <span class="Constant">10/newline</span>
-<span id="L474" class="LineNr">474 </span>    restart buffer-routine
-<span id="L475" class="LineNr">475 </span>    wait-for-routine-to-block buffer-routine
-<span id="L476" class="LineNr">476 </span>    empty? <span class="Special">&lt;-</span> <a href='075channel.mu.html#L350'>channel-empty?</a> buffered-chan
-<span id="L477" class="LineNr">477 </span>    data-emitted?:bool <span class="Special">&lt;-</span> not empty?
-<span id="L478" class="LineNr">478 </span>    assert data-emitted?, <span class="Constant">[ </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="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
+<span id="L477" class="LineNr">477 </span>  <span class="Conceal">¦</span> data-emitted?:bool <span class="Special">&lt;-</span> not empty?
+<span id="L478" class="LineNr">478 </span>  <span class="Conceal">¦</span> assert data-emitted?, <span class="Constant">[ </span>
 <span id="L479" class="LineNr">479 </span><span class="Constant">F buffer-lines-blocks-until-newline: channel should contain data after writing newline]</span>
-<span id="L480" class="LineNr">480 </span>    trace<span class="Constant"> 1</span>, <span class="Constant">[test]</span>, <span class="Constant">[reached end]</span>
+<span id="L480" class="LineNr">480 </span>  <span class="Conceal">¦</span> trace<span class="Constant"> 1</span>, <span class="Constant">[test]</span>, <span class="Constant">[reached end]</span>
 <span id="L481" class="LineNr">481 </span>  ]
 <span id="L482" class="LineNr">482 </span>  trace-should-contain [
-<span id="L483" class="LineNr">483 </span>    test: reached end
+<span id="L483" class="LineNr">483 </span>  <span class="Conceal">¦</span> test: reached end
 <span id="L484" class="LineNr">484 </span>  ]
 <span id="L485" class="LineNr">485 </span>]
 <span id="L486" class="LineNr">486 </span>
@@ -551,10 +552,10 @@ if ('onhashchange' in window) {
 <span id="L489" class="LineNr">489 </span>  <span class="Constant">load-ingredients</span>
 <span id="L490" class="LineNr">490 </span>  buf:&amp;:<a href='061text.mu.html#L127'>buffer</a> <span class="Special">&lt;-</span> <a href='061text.mu.html#L132'>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>    c:char, done?:bool <span class="Special">&lt;-</span> read source
-<span id="L493" class="LineNr">493 </span>    <span class="muControl">break-if</span> done?
-<span id="L494" class="LineNr">494 </span>    buf <span class="Special">&lt;-</span> append buf, c
-<span id="L495" class="LineNr">495 </span>    <span class="muControl">loop</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="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>
 <span id="L496" class="LineNr">496 </span>  <span class="Delimiter">}</span>
 <span id="L497" class="LineNr">497 </span>  result <span class="Special">&lt;-</span> <a href='061text.mu.html#L329'>buffer-to-array</a> buf
 <span id="L498" class="LineNr">498 </span>]