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Diffstat (limited to 'html/081print.mu.html')
-rw-r--r--html/081print.mu.html553
1 files changed, 277 insertions, 276 deletions
diff --git a/html/081print.mu.html b/html/081print.mu.html
index 33ddf53a..6796ccbc 100644
--- a/html/081print.mu.html
+++ b/html/081print.mu.html
@@ -15,16 +15,17 @@ 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; }
+.muRecipe { color: #ff8700; }
+.muScenario { color: #00af00; }
 .Special { color: #c00000; }
+.Conceal { color: #4e4e4e; }
 .Delimiter { color: #800080; }
 .Comment { color: #9090ff; }
 .Constant { color: #00a0a0; }
 .LineNr { color: #444444; }
 .CommentedCode { color: #6c6c6c; }
-.muRecipe { color: #ff8700; }
-.muScenario { color: #00af00; }
+.muControl { color: #c0a020; }
+.muData { color: #ffff00; }
 -->
 </style>
 
@@ -89,22 +90,22 @@ if ('onhashchange' in window) {
 <span id="L28" class="LineNr"> 28 </span>  <span class="Constant">local-scope</span>
 <span id="L29" class="LineNr"> 29 </span>  <span class="Constant">load-ingredients</span>
 <span id="L30" class="LineNr"> 30 </span>  <span class="Delimiter">{</span>
-<span id="L31" class="LineNr"> 31 </span>    <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
-<span id="L32" class="LineNr"> 32 </span>    <span class="Comment"># real screen</span>
-<span id="L33" class="LineNr"> 33 </span>    clear-display
-<span id="L34" class="LineNr"> 34 </span>    <span class="muControl">return</span>
+<span id="L31" class="LineNr"> 31 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
+<span id="L32" class="LineNr"> 32 </span>  <span class="Conceal">¦</span> <span class="Comment"># real screen</span>
+<span id="L33" class="LineNr"> 33 </span>  <span class="Conceal">¦</span> clear-display
+<span id="L34" class="LineNr"> 34 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L35" class="LineNr"> 35 </span>  <span class="Delimiter">}</span>
 <span id="L36" class="LineNr"> 36 </span>  <span class="Comment"># fake screen</span>
 <span id="L37" class="LineNr"> 37 </span>  buf:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *screen, <span class="Constant">data:offset</span>
 <span id="L38" class="LineNr"> 38 </span>  max:num <span class="Special">&lt;-</span> length *buf
 <span id="L39" class="LineNr"> 39 </span>  i:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
 <span id="L40" class="LineNr"> 40 </span>  <span class="Delimiter">{</span>
-<span id="L41" class="LineNr"> 41 </span>    done?:bool <span class="Special">&lt;-</span> greater-or-equal i, max
-<span id="L42" class="LineNr"> 42 </span>    <span class="muControl">break-if</span> done?
-<span id="L43" class="LineNr"> 43 </span>    curr:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> merge <span class="Constant">0/empty</span>, <span class="Constant">7/white</span>
-<span id="L44" class="LineNr"> 44 </span>    *buf <span class="Special">&lt;-</span> put-index *buf, i, curr
-<span id="L45" class="LineNr"> 45 </span>    i <span class="Special">&lt;-</span> add i,<span class="Constant"> 1</span>
-<span id="L46" class="LineNr"> 46 </span>    <span class="muControl">loop</span>
+<span id="L41" class="LineNr"> 41 </span>  <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> greater-or-equal i, max
+<span id="L42" class="LineNr"> 42 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
+<span id="L43" class="LineNr"> 43 </span>  <span class="Conceal">¦</span> curr:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> merge <span class="Constant">0/empty</span>, <span class="Constant">7/white</span>
+<span id="L44" class="LineNr"> 44 </span>  <span class="Conceal">¦</span> *buf <span class="Special">&lt;-</span> put-index *buf, i, curr
+<span id="L45" class="LineNr"> 45 </span>  <span class="Conceal">¦</span> i <span class="Special">&lt;-</span> add i,<span class="Constant"> 1</span>
+<span id="L46" class="LineNr"> 46 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L47" class="LineNr"> 47 </span>  <span class="Delimiter">}</span>
 <span id="L48" class="LineNr"> 48 </span>  <span class="Comment"># reset cursor</span>
 <span id="L49" class="LineNr"> 49 </span>  *screen <span class="Special">&lt;-</span> put *screen, <span class="Constant">cursor-row:offset</span>,<span class="Constant"> 0</span>
@@ -126,14 +127,14 @@ if ('onhashchange' in window) {
 <span id="L65" class="LineNr"> 65 </span>  i:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
 <span id="L66" class="LineNr"> 66 </span>  len:num <span class="Special">&lt;-</span> length *buf
 <span id="L67" class="LineNr"> 67 </span>  <span class="Delimiter">{</span>
-<span id="L68" class="LineNr"> 68 </span>    done?:bool <span class="Special">&lt;-</span> greater-or-equal i, len
-<span id="L69" class="LineNr"> 69 </span>    <span class="muControl">break-if</span> done?
-<span id="L70" class="LineNr"> 70 </span>    curr:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> index *buf, i
-<span id="L71" class="LineNr"> 71 </span>    curr-contents:char <span class="Special">&lt;-</span> get curr, <span class="Constant">contents:offset</span>
-<span id="L72" class="LineNr"> 72 </span>    i <span class="Special">&lt;-</span> add i,<span class="Constant"> 1</span>
-<span id="L73" class="LineNr"> 73 </span>    <span class="muControl">loop-unless</span> curr-contents
-<span id="L74" class="LineNr"> 74 </span>    <span class="Comment"># not 0</span>
-<span id="L75" class="LineNr"> 75 </span>    <span class="muControl">return</span> <span class="Constant">0/false</span>
+<span id="L68" class="LineNr"> 68 </span>  <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> greater-or-equal i, len
+<span id="L69" class="LineNr"> 69 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
+<span id="L70" class="LineNr"> 70 </span>  <span class="Conceal">¦</span> curr:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> index *buf, i
+<span id="L71" class="LineNr"> 71 </span>  <span class="Conceal">¦</span> curr-contents:char <span class="Special">&lt;-</span> get curr, <span class="Constant">contents:offset</span>
+<span id="L72" class="LineNr"> 72 </span>  <span class="Conceal">¦</span> i <span class="Special">&lt;-</span> add i,<span class="Constant"> 1</span>
+<span id="L73" class="LineNr"> 73 </span>  <span class="Conceal">¦</span> <span class="muControl">loop-unless</span> curr-contents
+<span id="L74" class="LineNr"> 74 </span>  <span class="Conceal">¦</span> <span class="Comment"># not 0</span>
+<span id="L75" class="LineNr"> 75 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span> <span class="Constant">0/false</span>
 <span id="L76" class="LineNr"> 76 </span>  <span class="Delimiter">}</span>
 <span id="L77" class="LineNr"> 77 </span>  <span class="muControl">return</span> <span class="Constant">1/true</span>
 <span id="L78" class="LineNr"> 78 </span>]
@@ -143,23 +144,23 @@ if ('onhashchange' in window) {
 <span id="L82" class="LineNr"> 82 </span>  <span class="Constant">load-ingredients</span>
 <span id="L83" class="LineNr"> 83 </span>  color:num, color-found?:bool <span class="Special">&lt;-</span> <span class="Constant">next-ingredient</span>
 <span id="L84" class="LineNr"> 84 </span>  <span class="Delimiter">{</span>
-<span id="L85" class="LineNr"> 85 </span>    <span class="Comment"># default color to white</span>
-<span id="L86" class="LineNr"> 86 </span>    <span class="muControl">break-if</span> color-found?
-<span id="L87" class="LineNr"> 87 </span>    color <span class="Special">&lt;-</span> copy <span class="Constant">7/white</span>
+<span id="L85" class="LineNr"> 85 </span>  <span class="Conceal">¦</span> <span class="Comment"># default color to white</span>
+<span id="L86" class="LineNr"> 86 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> color-found?
+<span id="L87" class="LineNr"> 87 </span>  <span class="Conceal">¦</span> color <span class="Special">&lt;-</span> copy <span class="Constant">7/white</span>
 <span id="L88" class="LineNr"> 88 </span>  <span class="Delimiter">}</span>
 <span id="L89" class="LineNr"> 89 </span>  bg-color:num, bg-color-found?:bool <span class="Special">&lt;-</span> <span class="Constant">next-ingredient</span>
 <span id="L90" class="LineNr"> 90 </span>  <span class="Delimiter">{</span>
-<span id="L91" class="LineNr"> 91 </span>    <span class="Comment"># default bg-color to black</span>
-<span id="L92" class="LineNr"> 92 </span>    <span class="muControl">break-if</span> bg-color-found?
-<span id="L93" class="LineNr"> 93 </span>    bg-color <span class="Special">&lt;-</span> copy <span class="Constant">0/black</span>
+<span id="L91" class="LineNr"> 91 </span>  <span class="Conceal">¦</span> <span class="Comment"># default bg-color to black</span>
+<span id="L92" class="LineNr"> 92 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> bg-color-found?
+<span id="L93" class="LineNr"> 93 </span>  <span class="Conceal">¦</span> bg-color <span class="Special">&lt;-</span> copy <span class="Constant">0/black</span>
 <span id="L94" class="LineNr"> 94 </span>  <span class="Delimiter">}</span>
 <span id="L95" class="LineNr"> 95 </span>  c2:num <span class="Special">&lt;-</span> character-to-code c
 <span id="L96" class="LineNr"> 96 </span>  trace<span class="Constant"> 90</span>, <span class="Constant">[print-character]</span>, c2
 <span id="L97" class="LineNr"> 97 </span>  <span class="Delimiter">{</span>
-<span id="L98" class="LineNr"> 98 </span>    <span class="Comment"># real screen</span>
-<span id="L99" class="LineNr"> 99 </span>    <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
-<span id="L100" class="LineNr">100 </span>    print-character-to-display c, color, bg-color
-<span id="L101" class="LineNr">101 </span>    <span class="muControl">return</span>
+<span id="L98" class="LineNr"> 98 </span>  <span class="Conceal">¦</span> <span class="Comment"># real screen</span>
+<span id="L99" class="LineNr"> 99 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
+<span id="L100" class="LineNr">100 </span>  <span class="Conceal">¦</span> print-character-to-display c, color, bg-color
+<span id="L101" class="LineNr">101 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L102" class="LineNr">102 </span>  <span class="Delimiter">}</span>
 <span id="L103" class="LineNr">103 </span>  <span class="Comment"># fake screen</span>
 <span id="L104" class="LineNr">104 </span>  <span class="Comment"># (handle special cases exactly like in the real screen)</span>
@@ -181,20 +182,20 @@ if ('onhashchange' in window) {
 <span id="L120" class="LineNr">120 </span><span class="CommentedCode">#?     $print [print-character (], row, [, ], column, [): ], c, 10/newline</span>
 <span id="L121" class="LineNr">121 </span>  <span class="Comment"># special-case: newline</span>
 <span id="L122" class="LineNr">122 </span>  <span class="Delimiter">{</span>
-<span id="L123" class="LineNr">123 </span>    newline?:bool <span class="Special">&lt;-</span> equal c, <span class="Constant">10/newline</span>
-<span id="L124" class="LineNr">124 </span>    <span class="muControl">break-unless</span> newline?
-<span id="L125" class="LineNr">125 </span>    <span class="Delimiter">{</span>
-<span id="L126" class="LineNr">126 </span>      <span class="Comment"># unless cursor is already at bottom</span>
-<span id="L127" class="LineNr">127 </span>      bottom:num <span class="Special">&lt;-</span> subtract height,<span class="Constant"> 1</span>
-<span id="L128" class="LineNr">128 </span>      at-bottom?:bool <span class="Special">&lt;-</span> greater-or-equal row, bottom
-<span id="L129" class="LineNr">129 </span>      <span class="muControl">break-if</span> at-bottom?
-<span id="L130" class="LineNr">130 </span>      <span class="Comment"># move it to the next row</span>
-<span id="L131" class="LineNr">131 </span>      column <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
-<span id="L132" class="LineNr">132 </span>      *screen <span class="Special">&lt;-</span> put *screen, <span class="Constant">cursor-column:offset</span>, column
-<span id="L133" class="LineNr">133 </span>      row <span class="Special">&lt;-</span> add row,<span class="Constant"> 1</span>
-<span id="L134" class="LineNr">134 </span>      *screen <span class="Special">&lt;-</span> put *screen, <span class="Constant">cursor-row:offset</span>, row
-<span id="L135" class="LineNr">135 </span>    <span class="Delimiter">}</span>
-<span id="L136" class="LineNr">136 </span>    <span class="muControl">return</span>
+<span id="L123" class="LineNr">123 </span>  <span class="Conceal">¦</span> newline?:bool <span class="Special">&lt;-</span> equal c, <span class="Constant">10/newline</span>
+<span id="L124" class="LineNr">124 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> newline?
+<span id="L125" class="LineNr">125 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
+<span id="L126" class="LineNr">126 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># unless cursor is already at bottom</span>
+<span id="L127" class="LineNr">127 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> bottom:num <span class="Special">&lt;-</span> subtract height,<span class="Constant"> 1</span>
+<span id="L128" class="LineNr">128 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> at-bottom?:bool <span class="Special">&lt;-</span> greater-or-equal row, bottom
+<span id="L129" class="LineNr">129 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> at-bottom?
+<span id="L130" class="LineNr">130 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># move it to the next row</span>
+<span id="L131" class="LineNr">131 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> column <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
+<span id="L132" class="LineNr">132 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> *screen <span class="Special">&lt;-</span> put *screen, <span class="Constant">cursor-column:offset</span>, column
+<span id="L133" class="LineNr">133 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> row <span class="Special">&lt;-</span> add row,<span class="Constant"> 1</span>
+<span id="L134" class="LineNr">134 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> *screen <span class="Special">&lt;-</span> put *screen, <span class="Constant">cursor-row:offset</span>, row
+<span id="L135" class="LineNr">135 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L136" class="LineNr">136 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L137" class="LineNr">137 </span>  <span class="Delimiter">}</span>
 <span id="L138" class="LineNr">138 </span>  <span class="Comment"># save character in fake screen</span>
 <span id="L139" class="LineNr">139 </span>  index:num <span class="Special">&lt;-</span> multiply row, width
@@ -203,30 +204,30 @@ if ('onhashchange' in window) {
 <span id="L142" class="LineNr">142 </span>  len:num <span class="Special">&lt;-</span> length *buf
 <span id="L143" class="LineNr">143 </span>  <span class="Comment"># special-case: backspace</span>
 <span id="L144" class="LineNr">144 </span>  <span class="Delimiter">{</span>
-<span id="L145" class="LineNr">145 </span>    backspace?:bool <span class="Special">&lt;-</span> equal c,<span class="Constant"> 8</span>
-<span id="L146" class="LineNr">146 </span>    <span class="muControl">break-unless</span> backspace?
-<span id="L147" class="LineNr">147 </span>    <span class="Delimiter">{</span>
-<span id="L148" class="LineNr">148 </span>      <span class="Comment"># unless cursor is already at left margin</span>
-<span id="L149" class="LineNr">149 </span>      at-left?:bool <span class="Special">&lt;-</span> lesser-or-equal column,<span class="Constant"> 0</span>
-<span id="L150" class="LineNr">150 </span>      <span class="muControl">break-if</span> at-left?
-<span id="L151" class="LineNr">151 </span>      <span class="Comment"># clear previous location</span>
-<span id="L152" class="LineNr">152 </span>      column <span class="Special">&lt;-</span> subtract column,<span class="Constant"> 1</span>
-<span id="L153" class="LineNr">153 </span>      *screen <span class="Special">&lt;-</span> put *screen, <span class="Constant">cursor-column:offset</span>, column
-<span id="L154" class="LineNr">154 </span>      index <span class="Special">&lt;-</span> subtract index,<span class="Constant"> 1</span>
-<span id="L155" class="LineNr">155 </span>      cursor:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> merge <span class="Constant">32/space</span>, <span class="Constant">7/white</span>
-<span id="L156" class="LineNr">156 </span>      *buf <span class="Special">&lt;-</span> put-index *buf, index, cursor
-<span id="L157" class="LineNr">157 </span>    <span class="Delimiter">}</span>
-<span id="L158" class="LineNr">158 </span>    <span class="muControl">return</span>
+<span id="L145" class="LineNr">145 </span>  <span class="Conceal">¦</span> backspace?:bool <span class="Special">&lt;-</span> equal c,<span class="Constant"> 8</span>
+<span id="L146" class="LineNr">146 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> backspace?
+<span id="L147" class="LineNr">147 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
+<span id="L148" class="LineNr">148 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># unless cursor is already at left margin</span>
+<span id="L149" class="LineNr">149 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> at-left?:bool <span class="Special">&lt;-</span> lesser-or-equal column,<span class="Constant"> 0</span>
+<span id="L150" class="LineNr">150 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="muControl">break-if</span> at-left?
+<span id="L151" class="LineNr">151 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment"># clear previous location</span>
+<span id="L152" class="LineNr">152 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> column <span class="Special">&lt;-</span> subtract column,<span class="Constant"> 1</span>
+<span id="L153" class="LineNr">153 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> *screen <span class="Special">&lt;-</span> put *screen, <span class="Constant">cursor-column:offset</span>, column
+<span id="L154" class="LineNr">154 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> index <span class="Special">&lt;-</span> subtract index,<span class="Constant"> 1</span>
+<span id="L155" class="LineNr">155 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> cursor:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> merge <span class="Constant">32/space</span>, <span class="Constant">7/white</span>
+<span id="L156" class="LineNr">156 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> *buf <span class="Special">&lt;-</span> put-index *buf, index, cursor
+<span id="L157" class="LineNr">157 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L158" class="LineNr">158 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L159" class="LineNr">159 </span>  <span class="Delimiter">}</span>
 <span id="L160" class="LineNr">160 </span>  cursor:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> merge c, color
 <span id="L161" class="LineNr">161 </span>  *buf <span class="Special">&lt;-</span> put-index *buf, index, cursor
 <span id="L162" class="LineNr">162 </span>  <span class="Comment"># increment column unless it's already all the way to the right</span>
 <span id="L163" class="LineNr">163 </span>  <span class="Delimiter">{</span>
-<span id="L164" class="LineNr">164 </span>    right:num <span class="Special">&lt;-</span> subtract width,<span class="Constant"> 1</span>
-<span id="L165" class="LineNr">165 </span>    at-right?:bool <span class="Special">&lt;-</span> greater-or-equal column, right
-<span id="L166" class="LineNr">166 </span>    <span class="muControl">break-if</span> at-right?
-<span id="L167" class="LineNr">167 </span>    column <span class="Special">&lt;-</span> add column,<span class="Constant"> 1</span>
-<span id="L168" class="LineNr">168 </span>    *screen <span class="Special">&lt;-</span> put *screen, <span class="Constant">cursor-column:offset</span>, column
+<span id="L164" class="LineNr">164 </span>  <span class="Conceal">¦</span> right:num <span class="Special">&lt;-</span> subtract width,<span class="Constant"> 1</span>
+<span id="L165" class="LineNr">165 </span>  <span class="Conceal">¦</span> at-right?:bool <span class="Special">&lt;-</span> greater-or-equal column, right
+<span id="L166" class="LineNr">166 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> at-right?
+<span id="L167" class="LineNr">167 </span>  <span class="Conceal">¦</span> column <span class="Special">&lt;-</span> add column,<span class="Constant"> 1</span>
+<span id="L168" class="LineNr">168 </span>  <span class="Conceal">¦</span> *screen <span class="Special">&lt;-</span> put *screen, <span class="Constant">cursor-column:offset</span>, column
 <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>
@@ -234,17 +235,17 @@ if ('onhashchange' in window) {
 <span id="L173" class="LineNr">173 </span>  <span class="Constant">local-scope</span>
 <span id="L174" class="LineNr">174 </span>  fake-screen:&amp;:<a href='081print.mu.html#L4'>screen</a> <span class="Special">&lt;-</span> <a href='081print.mu.html#L17'>new-fake-screen</a> <span class="Constant">3/width</span>, <span class="Constant">2/height</span>
 <span id="L175" class="LineNr">175 </span>  run [
-<span id="L176" class="LineNr">176 </span>    a:char <span class="Special">&lt;-</span> copy <span class="Constant">97/a</span>
-<span id="L177" class="LineNr">177 </span>    fake-screen <span class="Special">&lt;-</span> print fake-screen, a:char
-<span id="L178" class="LineNr">178 </span>    cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
-<span id="L179" class="LineNr">179 </span>    1:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
+<span id="L176" class="LineNr">176 </span>  <span class="Conceal">¦</span> a:char <span class="Special">&lt;-</span> copy <span class="Constant">97/a</span>
+<span id="L177" class="LineNr">177 </span>  <span class="Conceal">¦</span> fake-screen <span class="Special">&lt;-</span> print fake-screen, a:char
+<span id="L178" class="LineNr">178 </span>  <span class="Conceal">¦</span> cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
+<span id="L179" class="LineNr">179 </span>  <span class="Conceal">¦</span> 1:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
 <span id="L180" class="LineNr">180 </span>  ]
 <span id="L181" class="LineNr">181 </span>  memory-should-contain [
-<span id="L182" class="LineNr">182 </span>   <span class="Constant"> 1</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
-<span id="L183" class="LineNr">183 </span>   <span class="Constant"> 2</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span>  <span class="Comment"># 'a'</span>
-<span id="L184" class="LineNr">184 </span>   <span class="Constant"> 3</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L185" class="LineNr">185 </span>    <span class="Comment"># rest of screen is empty</span>
-<span id="L186" class="LineNr">186 </span>   <span class="Constant"> 4</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L182" class="LineNr">182 </span>  <span class="Conceal">¦</span><span class="Constant"> 1</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
+<span id="L183" class="LineNr">183 </span>  <span class="Conceal">¦</span><span class="Constant"> 2</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span>  <span class="Comment"># 'a'</span>
+<span id="L184" class="LineNr">184 </span>  <span class="Conceal">¦</span><span class="Constant"> 3</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L185" class="LineNr">185 </span>  <span class="Conceal">¦</span> <span class="Comment"># rest of screen is empty</span>
+<span id="L186" class="LineNr">186 </span>  <span class="Conceal">¦</span><span class="Constant"> 4</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
 <span id="L187" class="LineNr">187 </span>  ]
 <span id="L188" class="LineNr">188 </span>]
 <span id="L189" class="LineNr">189 </span>
@@ -253,17 +254,17 @@ if ('onhashchange' in window) {
 <span id="L192" class="LineNr">192 </span>  fake-screen:&amp;:<a href='081print.mu.html#L4'>screen</a> <span class="Special">&lt;-</span> <a href='081print.mu.html#L17'>new-fake-screen</a> <span class="Constant">3/width</span>, <span class="Constant">2/height</span>
 <span id="L193" class="LineNr">193 </span>  a:char <span class="Special">&lt;-</span> copy <span class="Constant">97/a</span>
 <span id="L194" class="LineNr">194 </span>  run [
-<span id="L195" class="LineNr">195 </span>    <a href='081print.mu.html#L442'>move-cursor</a> fake-screen, 0.5,<span class="Constant"> 0</span>
-<span id="L196" class="LineNr">196 </span>    fake-screen <span class="Special">&lt;-</span> print fake-screen, a:char
-<span id="L197" class="LineNr">197 </span>    cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
-<span id="L198" class="LineNr">198 </span>    1:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
+<span id="L195" class="LineNr">195 </span>  <span class="Conceal">¦</span> <a href='081print.mu.html#L442'>move-cursor</a> fake-screen, 0.5,<span class="Constant"> 0</span>
+<span id="L196" class="LineNr">196 </span>  <span class="Conceal">¦</span> fake-screen <span class="Special">&lt;-</span> print fake-screen, a:char
+<span id="L197" class="LineNr">197 </span>  <span class="Conceal">¦</span> cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
+<span id="L198" class="LineNr">198 </span>  <span class="Conceal">¦</span> 1:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
 <span id="L199" class="LineNr">199 </span>  ]
 <span id="L200" class="LineNr">200 </span>  memory-should-contain [
-<span id="L201" class="LineNr">201 </span>   <span class="Constant"> 1</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
-<span id="L202" class="LineNr">202 </span>   <span class="Constant"> 2</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span>  <span class="Comment"># 'a'</span>
-<span id="L203" class="LineNr">203 </span>   <span class="Constant"> 3</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L204" class="LineNr">204 </span>    <span class="Comment"># rest of screen is empty</span>
-<span id="L205" class="LineNr">205 </span>   <span class="Constant"> 4</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L201" class="LineNr">201 </span>  <span class="Conceal">¦</span><span class="Constant"> 1</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
+<span id="L202" class="LineNr">202 </span>  <span class="Conceal">¦</span><span class="Constant"> 2</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span>  <span class="Comment"># 'a'</span>
+<span id="L203" class="LineNr">203 </span>  <span class="Conceal">¦</span><span class="Constant"> 3</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L204" class="LineNr">204 </span>  <span class="Conceal">¦</span> <span class="Comment"># rest of screen is empty</span>
+<span id="L205" class="LineNr">205 </span>  <span class="Conceal">¦</span><span class="Constant"> 4</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
 <span id="L206" class="LineNr">206 </span>  ]
 <span id="L207" class="LineNr">207 </span>]
 <span id="L208" class="LineNr">208 </span>
@@ -271,17 +272,17 @@ if ('onhashchange' in window) {
 <span id="L210" class="LineNr">210 </span>  <span class="Constant">local-scope</span>
 <span id="L211" class="LineNr">211 </span>  fake-screen:&amp;:<a href='081print.mu.html#L4'>screen</a> <span class="Special">&lt;-</span> <a href='081print.mu.html#L17'>new-fake-screen</a> <span class="Constant">3/width</span>, <span class="Constant">2/height</span>
 <span id="L212" class="LineNr">212 </span>  run [
-<span id="L213" class="LineNr">213 </span>    a:char <span class="Special">&lt;-</span> copy <span class="Constant">97/a</span>
-<span id="L214" class="LineNr">214 </span>    fake-screen <span class="Special">&lt;-</span> print fake-screen, a:char, <span class="Constant">1/red</span>
-<span id="L215" class="LineNr">215 </span>    cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
-<span id="L216" class="LineNr">216 </span>    1:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
+<span id="L213" class="LineNr">213 </span>  <span class="Conceal">¦</span> a:char <span class="Special">&lt;-</span> copy <span class="Constant">97/a</span>
+<span id="L214" class="LineNr">214 </span>  <span class="Conceal">¦</span> fake-screen <span class="Special">&lt;-</span> print fake-screen, a:char, <span class="Constant">1/red</span>
+<span id="L215" class="LineNr">215 </span>  <span class="Conceal">¦</span> cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
+<span id="L216" class="LineNr">216 </span>  <span class="Conceal">¦</span> 1:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
 <span id="L217" class="LineNr">217 </span>  ]
 <span id="L218" class="LineNr">218 </span>  memory-should-contain [
-<span id="L219" class="LineNr">219 </span>   <span class="Constant"> 1</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
-<span id="L220" class="LineNr">220 </span>   <span class="Constant"> 2</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span>  <span class="Comment"># 'a'</span>
-<span id="L221" class="LineNr">221 </span>   <span class="Constant"> 3</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># red</span>
-<span id="L222" class="LineNr">222 </span>    <span class="Comment"># rest of screen is empty</span>
-<span id="L223" class="LineNr">223 </span>   <span class="Constant"> 4</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L219" class="LineNr">219 </span>  <span class="Conceal">¦</span><span class="Constant"> 1</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
+<span id="L220" class="LineNr">220 </span>  <span class="Conceal">¦</span><span class="Constant"> 2</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span>  <span class="Comment"># 'a'</span>
+<span id="L221" class="LineNr">221 </span>  <span class="Conceal">¦</span><span class="Constant"> 3</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># red</span>
+<span id="L222" class="LineNr">222 </span>  <span class="Conceal">¦</span> <span class="Comment"># rest of screen is empty</span>
+<span id="L223" class="LineNr">223 </span>  <span class="Conceal">¦</span><span class="Constant"> 4</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
 <span id="L224" class="LineNr">224 </span>  ]
 <span id="L225" class="LineNr">225 </span>]
 <span id="L226" class="LineNr">226 </span>
@@ -291,19 +292,19 @@ if ('onhashchange' in window) {
 <span id="L230" class="LineNr">230 </span>  a:char <span class="Special">&lt;-</span> copy <span class="Constant">97/a</span>
 <span id="L231" class="LineNr">231 </span>  fake-screen <span class="Special">&lt;-</span> print fake-screen, a
 <span id="L232" class="LineNr">232 </span>  run [
-<span id="L233" class="LineNr">233 </span>    backspace:char <span class="Special">&lt;-</span> copy <span class="Constant">8/backspace</span>
-<span id="L234" class="LineNr">234 </span>    fake-screen <span class="Special">&lt;-</span> print fake-screen, backspace
-<span id="L235" class="LineNr">235 </span>    10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-column:offset</span>
-<span id="L236" class="LineNr">236 </span>    cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
-<span id="L237" class="LineNr">237 </span>    11:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
+<span id="L233" class="LineNr">233 </span>  <span class="Conceal">¦</span> backspace:char <span class="Special">&lt;-</span> copy <span class="Constant">8/backspace</span>
+<span id="L234" class="LineNr">234 </span>  <span class="Conceal">¦</span> fake-screen <span class="Special">&lt;-</span> print fake-screen, backspace
+<span id="L235" class="LineNr">235 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-column:offset</span>
+<span id="L236" class="LineNr">236 </span>  <span class="Conceal">¦</span> cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
+<span id="L237" class="LineNr">237 </span>  <span class="Conceal">¦</span> 11:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
 <span id="L238" class="LineNr">238 </span>  ]
 <span id="L239" class="LineNr">239 </span>  memory-should-contain [
-<span id="L240" class="LineNr">240 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># cursor column</span>
-<span id="L241" class="LineNr">241 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
-<span id="L242" class="LineNr">242 </span>   <span class="Constant"> 12</span> <span class="Special">&lt;-</span><span class="Constant"> 32</span>  <span class="Comment"># space, not 'a'</span>
-<span id="L243" class="LineNr">243 </span>   <span class="Constant"> 13</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L244" class="LineNr">244 </span>    <span class="Comment"># rest of screen is empty</span>
-<span id="L245" class="LineNr">245 </span>   <span class="Constant"> 14</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L240" class="LineNr">240 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># cursor column</span>
+<span id="L241" class="LineNr">241 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
+<span id="L242" class="LineNr">242 </span>  <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special">&lt;-</span><span class="Constant"> 32</span>  <span class="Comment"># space, not 'a'</span>
+<span id="L243" class="LineNr">243 </span>  <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L244" class="LineNr">244 </span>  <span class="Conceal">¦</span> <span class="Comment"># rest of screen is empty</span>
+<span id="L245" class="LineNr">245 </span>  <span class="Conceal">¦</span><span class="Constant"> 14</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
 <span id="L246" class="LineNr">246 </span>  ]
 <span id="L247" class="LineNr">247 </span>]
 <span id="L248" class="LineNr">248 </span>
@@ -313,20 +314,20 @@ if ('onhashchange' in window) {
 <span id="L252" class="LineNr">252 </span>  a:char <span class="Special">&lt;-</span> copy <span class="Constant">97/a</span>
 <span id="L253" class="LineNr">253 </span>  fake-screen <span class="Special">&lt;-</span> print fake-screen, a
 <span id="L254" class="LineNr">254 </span>  run [
-<span id="L255" class="LineNr">255 </span>    backspace:char <span class="Special">&lt;-</span> copy <span class="Constant">8/backspace</span>
-<span id="L256" class="LineNr">256 </span>    fake-screen <span class="Special">&lt;-</span> print fake-screen, backspace
-<span id="L257" class="LineNr">257 </span>    fake-screen <span class="Special">&lt;-</span> print fake-screen, backspace  <span class="Comment"># cursor already at left margin</span>
-<span id="L258" class="LineNr">258 </span>    1:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-column:offset</span>
-<span id="L259" class="LineNr">259 </span>    cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
-<span id="L260" class="LineNr">260 </span>    3:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
+<span id="L255" class="LineNr">255 </span>  <span class="Conceal">¦</span> backspace:char <span class="Special">&lt;-</span> copy <span class="Constant">8/backspace</span>
+<span id="L256" class="LineNr">256 </span>  <span class="Conceal">¦</span> fake-screen <span class="Special">&lt;-</span> print fake-screen, backspace
+<span id="L257" class="LineNr">257 </span>  <span class="Conceal">¦</span> fake-screen <span class="Special">&lt;-</span> print fake-screen, backspace  <span class="Comment"># cursor already at left margin</span>
+<span id="L258" class="LineNr">258 </span>  <span class="Conceal">¦</span> 1:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-column:offset</span>
+<span id="L259" class="LineNr">259 </span>  <span class="Conceal">¦</span> cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
+<span id="L260" class="LineNr">260 </span>  <span class="Conceal">¦</span> 3:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
 <span id="L261" class="LineNr">261 </span>  ]
 <span id="L262" class="LineNr">262 </span>  memory-should-contain [
-<span id="L263" class="LineNr">263 </span>   <span class="Constant"> 1</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># cursor column</span>
-<span id="L264" class="LineNr">264 </span>   <span class="Constant"> 3</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
-<span id="L265" class="LineNr">265 </span>   <span class="Constant"> 4</span> <span class="Special">&lt;-</span><span class="Constant"> 32</span>  <span class="Comment"># space, not 'a'</span>
-<span id="L266" class="LineNr">266 </span>   <span class="Constant"> 5</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L267" class="LineNr">267 </span>    <span class="Comment"># rest of screen is empty</span>
-<span id="L268" class="LineNr">268 </span>   <span class="Constant"> 6</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L263" class="LineNr">263 </span>  <span class="Conceal">¦</span><span class="Constant"> 1</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># cursor column</span>
+<span id="L264" class="LineNr">264 </span>  <span class="Conceal">¦</span><span class="Constant"> 3</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
+<span id="L265" class="LineNr">265 </span>  <span class="Conceal">¦</span><span class="Constant"> 4</span> <span class="Special">&lt;-</span><span class="Constant"> 32</span>  <span class="Comment"># space, not 'a'</span>
+<span id="L266" class="LineNr">266 </span>  <span class="Conceal">¦</span><span class="Constant"> 5</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L267" class="LineNr">267 </span>  <span class="Conceal">¦</span> <span class="Comment"># rest of screen is empty</span>
+<span id="L268" class="LineNr">268 </span>  <span class="Conceal">¦</span><span class="Constant"> 6</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
 <span id="L269" class="LineNr">269 </span>  ]
 <span id="L270" class="LineNr">270 </span>]
 <span id="L271" class="LineNr">271 </span>
@@ -339,22 +340,22 @@ if ('onhashchange' in window) {
 <span id="L278" class="LineNr">278 </span>  b:char <span class="Special">&lt;-</span> copy <span class="Constant">98/b</span>
 <span id="L279" class="LineNr">279 </span>  fake-screen <span class="Special">&lt;-</span> print fake-screen, b
 <span id="L280" class="LineNr">280 </span>  run [
-<span id="L281" class="LineNr">281 </span>    <span class="Comment"># cursor now at right margin</span>
-<span id="L282" class="LineNr">282 </span>    c:char <span class="Special">&lt;-</span> copy <span class="Constant">99/c</span>
-<span id="L283" class="LineNr">283 </span>    fake-screen <span class="Special">&lt;-</span> print fake-screen, c
-<span id="L284" class="LineNr">284 </span>    10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-column:offset</span>
-<span id="L285" class="LineNr">285 </span>    cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
-<span id="L286" class="LineNr">286 </span>    11:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
+<span id="L281" class="LineNr">281 </span>  <span class="Conceal">¦</span> <span class="Comment"># cursor now at right margin</span>
+<span id="L282" class="LineNr">282 </span>  <span class="Conceal">¦</span> c:char <span class="Special">&lt;-</span> copy <span class="Constant">99/c</span>
+<span id="L283" class="LineNr">283 </span>  <span class="Conceal">¦</span> fake-screen <span class="Special">&lt;-</span> print fake-screen, c
+<span id="L284" class="LineNr">284 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-column:offset</span>
+<span id="L285" class="LineNr">285 </span>  <span class="Conceal">¦</span> cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
+<span id="L286" class="LineNr">286 </span>  <span class="Conceal">¦</span> 11:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
 <span id="L287" class="LineNr">287 </span>  ]
 <span id="L288" class="LineNr">288 </span>  memory-should-contain [
-<span id="L289" class="LineNr">289 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># cursor column</span>
-<span id="L290" class="LineNr">290 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 4</span>  <span class="Comment"># width*height</span>
-<span id="L291" class="LineNr">291 </span>   <span class="Constant"> 12</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span>  <span class="Comment"># 'a'</span>
-<span id="L292" class="LineNr">292 </span>   <span class="Constant"> 13</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L293" class="LineNr">293 </span>   <span class="Constant"> 14</span> <span class="Special">&lt;-</span><span class="Constant"> 99</span>  <span class="Comment"># 'c' over 'b'</span>
-<span id="L294" class="LineNr">294 </span>   <span class="Constant"> 15</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L295" class="LineNr">295 </span>    <span class="Comment"># rest of screen is empty</span>
-<span id="L296" class="LineNr">296 </span>   <span class="Constant"> 16</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L289" class="LineNr">289 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># cursor column</span>
+<span id="L290" class="LineNr">290 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 4</span>  <span class="Comment"># width*height</span>
+<span id="L291" class="LineNr">291 </span>  <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span>  <span class="Comment"># 'a'</span>
+<span id="L292" class="LineNr">292 </span>  <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L293" class="LineNr">293 </span>  <span class="Conceal">¦</span><span class="Constant"> 14</span> <span class="Special">&lt;-</span><span class="Constant"> 99</span>  <span class="Comment"># 'c' over 'b'</span>
+<span id="L294" class="LineNr">294 </span>  <span class="Conceal">¦</span><span class="Constant"> 15</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L295" class="LineNr">295 </span>  <span class="Conceal">¦</span> <span class="Comment"># rest of screen is empty</span>
+<span id="L296" class="LineNr">296 </span>  <span class="Conceal">¦</span><span class="Constant"> 16</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
 <span id="L297" class="LineNr">297 </span>  ]
 <span id="L298" class="LineNr">298 </span>]
 <span id="L299" class="LineNr">299 </span>
@@ -364,21 +365,21 @@ if ('onhashchange' in window) {
 <span id="L303" class="LineNr">303 </span>  a:char <span class="Special">&lt;-</span> copy <span class="Constant">97/a</span>
 <span id="L304" class="LineNr">304 </span>  fake-screen <span class="Special">&lt;-</span> print fake-screen, a
 <span id="L305" class="LineNr">305 </span>  run [
-<span id="L306" class="LineNr">306 </span>    newline:char <span class="Special">&lt;-</span> copy <span class="Constant">10/newline</span>
-<span id="L307" class="LineNr">307 </span>    fake-screen <span class="Special">&lt;-</span> print fake-screen, newline
-<span id="L308" class="LineNr">308 </span>    10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-row:offset</span>
-<span id="L309" class="LineNr">309 </span>    11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-column:offset</span>
-<span id="L310" class="LineNr">310 </span>    cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
-<span id="L311" class="LineNr">311 </span>    12:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
+<span id="L306" class="LineNr">306 </span>  <span class="Conceal">¦</span> newline:char <span class="Special">&lt;-</span> copy <span class="Constant">10/newline</span>
+<span id="L307" class="LineNr">307 </span>  <span class="Conceal">¦</span> fake-screen <span class="Special">&lt;-</span> print fake-screen, newline
+<span id="L308" class="LineNr">308 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-row:offset</span>
+<span id="L309" class="LineNr">309 </span>  <span class="Conceal">¦</span> 11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-column:offset</span>
+<span id="L310" class="LineNr">310 </span>  <span class="Conceal">¦</span> cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
+<span id="L311" class="LineNr">311 </span>  <span class="Conceal">¦</span> 12:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
 <span id="L312" class="LineNr">312 </span>  ]
 <span id="L313" class="LineNr">313 </span>  memory-should-contain [
-<span id="L314" class="LineNr">314 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># cursor row</span>
-<span id="L315" class="LineNr">315 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># cursor column</span>
-<span id="L316" class="LineNr">316 </span>   <span class="Constant"> 12</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
-<span id="L317" class="LineNr">317 </span>   <span class="Constant"> 13</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span>  <span class="Comment"># 'a'</span>
-<span id="L318" class="LineNr">318 </span>   <span class="Constant"> 14</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L319" class="LineNr">319 </span>    <span class="Comment"># rest of screen is empty</span>
-<span id="L320" class="LineNr">320 </span>   <span class="Constant"> 15</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L314" class="LineNr">314 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># cursor row</span>
+<span id="L315" class="LineNr">315 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># cursor column</span>
+<span id="L316" class="LineNr">316 </span>  <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
+<span id="L317" class="LineNr">317 </span>  <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span>  <span class="Comment"># 'a'</span>
+<span id="L318" class="LineNr">318 </span>  <span class="Conceal">¦</span><span class="Constant"> 14</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L319" class="LineNr">319 </span>  <span class="Conceal">¦</span> <span class="Comment"># rest of screen is empty</span>
+<span id="L320" class="LineNr">320 </span>  <span class="Conceal">¦</span><span class="Constant"> 15</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
 <span id="L321" class="LineNr">321 </span>  ]
 <span id="L322" class="LineNr">322 </span>]
 <span id="L323" class="LineNr">323 </span>
@@ -389,15 +390,15 @@ if ('onhashchange' in window) {
 <span id="L328" class="LineNr">328 </span>  fake-screen <span class="Special">&lt;-</span> print fake-screen, newline
 <span id="L329" class="LineNr">329 </span>  fake-screen <span class="Special">&lt;-</span> print fake-screen, newline
 <span id="L330" class="LineNr">330 </span>  run [
-<span id="L331" class="LineNr">331 </span>    <span class="Comment"># cursor now at bottom of screen</span>
-<span id="L332" class="LineNr">332 </span>    fake-screen <span class="Special">&lt;-</span> print fake-screen, newline
-<span id="L333" class="LineNr">333 </span>    10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-row:offset</span>
-<span id="L334" class="LineNr">334 </span>    11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-column:offset</span>
+<span id="L331" class="LineNr">331 </span>  <span class="Conceal">¦</span> <span class="Comment"># cursor now at bottom of screen</span>
+<span id="L332" class="LineNr">332 </span>  <span class="Conceal">¦</span> fake-screen <span class="Special">&lt;-</span> print fake-screen, newline
+<span id="L333" class="LineNr">333 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-row:offset</span>
+<span id="L334" class="LineNr">334 </span>  <span class="Conceal">¦</span> 11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-column:offset</span>
 <span id="L335" class="LineNr">335 </span>  ]
 <span id="L336" class="LineNr">336 </span>  <span class="Comment"># doesn't move further down</span>
 <span id="L337" class="LineNr">337 </span>  memory-should-contain [
-<span id="L338" class="LineNr">338 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># cursor row</span>
-<span id="L339" class="LineNr">339 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># cursor column</span>
+<span id="L338" class="LineNr">338 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># cursor row</span>
+<span id="L339" class="LineNr">339 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># cursor column</span>
 <span id="L340" class="LineNr">340 </span>  ]
 <span id="L341" class="LineNr">341 </span>]
 <span id="L342" class="LineNr">342 </span>
@@ -414,28 +415,28 @@ if ('onhashchange' in window) {
 <span id="L353" class="LineNr">353 </span>  fake-screen <span class="Special">&lt;-</span> print fake-screen, c
 <span id="L354" class="LineNr">354 </span>  fake-screen <span class="Special">&lt;-</span> print fake-screen, newline
 <span id="L355" class="LineNr">355 </span>  run [
-<span id="L356" class="LineNr">356 </span>    <span class="Comment"># cursor now at bottom right</span>
-<span id="L357" class="LineNr">357 </span>    d:char <span class="Special">&lt;-</span> copy <span class="Constant">100/d</span>
-<span id="L358" class="LineNr">358 </span>    fake-screen <span class="Special">&lt;-</span> print fake-screen, d
-<span id="L359" class="LineNr">359 </span>    10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-row:offset</span>
-<span id="L360" class="LineNr">360 </span>    11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-column:offset</span>
-<span id="L361" class="LineNr">361 </span>    cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
-<span id="L362" class="LineNr">362 </span>    20:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
+<span id="L356" class="LineNr">356 </span>  <span class="Conceal">¦</span> <span class="Comment"># cursor now at bottom right</span>
+<span id="L357" class="LineNr">357 </span>  <span class="Conceal">¦</span> d:char <span class="Special">&lt;-</span> copy <span class="Constant">100/d</span>
+<span id="L358" class="LineNr">358 </span>  <span class="Conceal">¦</span> fake-screen <span class="Special">&lt;-</span> print fake-screen, d
+<span id="L359" class="LineNr">359 </span>  <span class="Conceal">¦</span> 10:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-row:offset</span>
+<span id="L360" class="LineNr">360 </span>  <span class="Conceal">¦</span> 11:num/<span class="Special">raw</span> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">cursor-column:offset</span>
+<span id="L361" class="LineNr">361 </span>  <span class="Conceal">¦</span> cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
+<span id="L362" class="LineNr">362 </span>  <span class="Conceal">¦</span> 20:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
 <span id="L363" class="LineNr">363 </span>  ]
 <span id="L364" class="LineNr">364 </span>  memory-should-contain [
-<span id="L365" class="LineNr">365 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># cursor row</span>
-<span id="L366" class="LineNr">366 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># cursor column</span>
-<span id="L367" class="LineNr">367 </span>   <span class="Constant"> 20</span> <span class="Special">&lt;-</span><span class="Constant"> 4</span>  <span class="Comment"># width*height</span>
-<span id="L368" class="LineNr">368 </span>   <span class="Constant"> 21</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># unused</span>
-<span id="L369" class="LineNr">369 </span>   <span class="Constant"> 22</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L370" class="LineNr">370 </span>   <span class="Constant"> 23</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># unused</span>
-<span id="L371" class="LineNr">371 </span>   <span class="Constant"> 24</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L372" class="LineNr">372 </span>   <span class="Constant"> 25</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span> <span class="Comment"># 'a'</span>
-<span id="L373" class="LineNr">373 </span>   <span class="Constant"> 26</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L374" class="LineNr">374 </span>   <span class="Constant"> 27</span> <span class="Special">&lt;-</span><span class="Constant"> 100</span>  <span class="Comment"># 'd' over 'b' and 'c' and newline</span>
-<span id="L375" class="LineNr">375 </span>   <span class="Constant"> 28</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L376" class="LineNr">376 </span>    <span class="Comment"># rest of screen is empty</span>
-<span id="L377" class="LineNr">377 </span>   <span class="Constant"> 29</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L365" class="LineNr">365 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># cursor row</span>
+<span id="L366" class="LineNr">366 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 1</span>  <span class="Comment"># cursor column</span>
+<span id="L367" class="LineNr">367 </span>  <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special">&lt;-</span><span class="Constant"> 4</span>  <span class="Comment"># width*height</span>
+<span id="L368" class="LineNr">368 </span>  <span class="Conceal">¦</span><span class="Constant"> 21</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># unused</span>
+<span id="L369" class="LineNr">369 </span>  <span class="Conceal">¦</span><span class="Constant"> 22</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L370" class="LineNr">370 </span>  <span class="Conceal">¦</span><span class="Constant"> 23</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>  <span class="Comment"># unused</span>
+<span id="L371" class="LineNr">371 </span>  <span class="Conceal">¦</span><span class="Constant"> 24</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L372" class="LineNr">372 </span>  <span class="Conceal">¦</span><span class="Constant"> 25</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span> <span class="Comment"># 'a'</span>
+<span id="L373" class="LineNr">373 </span>  <span class="Conceal">¦</span><span class="Constant"> 26</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L374" class="LineNr">374 </span>  <span class="Conceal">¦</span><span class="Constant"> 27</span> <span class="Special">&lt;-</span><span class="Constant"> 100</span>  <span class="Comment"># 'd' over 'b' and 'c' and newline</span>
+<span id="L375" class="LineNr">375 </span>  <span class="Conceal">¦</span><span class="Constant"> 28</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L376" class="LineNr">376 </span>  <span class="Conceal">¦</span> <span class="Comment"># rest of screen is empty</span>
+<span id="L377" class="LineNr">377 </span>  <span class="Conceal">¦</span><span class="Constant"> 29</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
 <span id="L378" class="LineNr">378 </span>  ]
 <span id="L379" class="LineNr">379 </span>]
 <span id="L380" class="LineNr">380 </span>
@@ -444,10 +445,10 @@ if ('onhashchange' in window) {
 <span id="L383" class="LineNr">383 </span>  <span class="Constant">load-ingredients</span>
 <span id="L384" class="LineNr">384 </span>  space:char <span class="Special">&lt;-</span> copy <span class="Constant">0/nul</span>
 <span id="L385" class="LineNr">385 </span>  <span class="Delimiter">{</span>
-<span id="L386" class="LineNr">386 </span>    <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
-<span id="L387" class="LineNr">387 </span>    <span class="Comment"># real screen</span>
-<span id="L388" class="LineNr">388 </span>    clear-line-on-display
-<span id="L389" class="LineNr">389 </span>    <span class="muControl">return</span>
+<span id="L386" class="LineNr">386 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
+<span id="L387" class="LineNr">387 </span>  <span class="Conceal">¦</span> <span class="Comment"># real screen</span>
+<span id="L388" class="LineNr">388 </span>  <span class="Conceal">¦</span> clear-line-on-display
+<span id="L389" class="LineNr">389 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L390" class="LineNr">390 </span>  <span class="Delimiter">}</span>
 <span id="L391" class="LineNr">391 </span>  <span class="Comment"># fake screen</span>
 <span id="L392" class="LineNr">392 </span>  width:num <span class="Special">&lt;-</span> get *screen, <span class="Constant">num-columns:offset</span>
@@ -455,12 +456,12 @@ if ('onhashchange' in window) {
 <span id="L394" class="LineNr">394 </span>  original-column:num <span class="Special">&lt;-</span> copy column
 <span id="L395" class="LineNr">395 </span>  <span class="Comment"># space over the entire line</span>
 <span id="L396" class="LineNr">396 </span>  <span class="Delimiter">{</span>
-<span id="L397" class="LineNr">397 </span>    right:num <span class="Special">&lt;-</span> subtract width,<span class="Constant"> 1</span>
-<span id="L398" class="LineNr">398 </span>    done?:bool <span class="Special">&lt;-</span> greater-or-equal column, right
-<span id="L399" class="LineNr">399 </span>    <span class="muControl">break-if</span> done?
-<span id="L400" class="LineNr">400 </span>    print <a href='081print.mu.html#L4'>screen</a>, space
-<span id="L401" class="LineNr">401 </span>    column <span class="Special">&lt;-</span> add column,<span class="Constant"> 1</span>
-<span id="L402" class="LineNr">402 </span>    <span class="muControl">loop</span>
+<span id="L397" class="LineNr">397 </span>  <span class="Conceal">¦</span> right:num <span class="Special">&lt;-</span> subtract width,<span class="Constant"> 1</span>
+<span id="L398" class="LineNr">398 </span>  <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> greater-or-equal column, right
+<span id="L399" class="LineNr">399 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
+<span id="L400" class="LineNr">400 </span>  <span class="Conceal">¦</span> print <a href='081print.mu.html#L4'>screen</a>, space
+<span id="L401" class="LineNr">401 </span>  <span class="Conceal">¦</span> column <span class="Special">&lt;-</span> add column,<span class="Constant"> 1</span>
+<span id="L402" class="LineNr">402 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L403" class="LineNr">403 </span>  <span class="Delimiter">}</span>
 <span id="L404" class="LineNr">404 </span>  <span class="Comment"># now back to where the cursor was</span>
 <span id="L405" class="LineNr">405 </span>  *screen <span class="Special">&lt;-</span> put *screen, <span class="Constant">cursor-column:offset</span>, original-column
@@ -473,16 +474,16 @@ if ('onhashchange' in window) {
 <span id="L412" class="LineNr">412 </span>  space:char <span class="Special">&lt;-</span> copy <span class="Constant">32/space</span>
 <span id="L413" class="LineNr">413 </span>  bg-color:num, bg-color-found?:bool <span class="Special">&lt;-</span> <span class="Constant">next-ingredient</span>
 <span id="L414" class="LineNr">414 </span>  <span class="Delimiter">{</span>
-<span id="L415" class="LineNr">415 </span>    <span class="Comment"># default bg-color to black</span>
-<span id="L416" class="LineNr">416 </span>    <span class="muControl">break-if</span> bg-color-found?
-<span id="L417" class="LineNr">417 </span>    bg-color <span class="Special">&lt;-</span> copy <span class="Constant">0/black</span>
+<span id="L415" class="LineNr">415 </span>  <span class="Conceal">¦</span> <span class="Comment"># default bg-color to black</span>
+<span id="L416" class="LineNr">416 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> bg-color-found?
+<span id="L417" class="LineNr">417 </span>  <span class="Conceal">¦</span> bg-color <span class="Special">&lt;-</span> copy <span class="Constant">0/black</span>
 <span id="L418" class="LineNr">418 </span>  <span class="Delimiter">}</span>
 <span id="L419" class="LineNr">419 </span>  <span class="Delimiter">{</span>
-<span id="L420" class="LineNr">420 </span>    done?:bool <span class="Special">&lt;-</span> greater-than column, right
-<span id="L421" class="LineNr">421 </span>    <span class="muControl">break-if</span> done?
-<span id="L422" class="LineNr">422 </span>    <a href='081print.mu.html#L4'>screen</a> <span class="Special">&lt;-</span> print <a href='081print.mu.html#L4'>screen</a>, space, <span class="Constant">7/white</span>, bg-color  <span class="Comment"># foreground color is mostly unused except if the cursor shows up at this cell</span>
-<span id="L423" class="LineNr">423 </span>    column <span class="Special">&lt;-</span> add column,<span class="Constant"> 1</span>
-<span id="L424" class="LineNr">424 </span>    <span class="muControl">loop</span>
+<span id="L420" class="LineNr">420 </span>  <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> greater-than column, right
+<span id="L421" class="LineNr">421 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
+<span id="L422" class="LineNr">422 </span>  <span class="Conceal">¦</span> <a href='081print.mu.html#L4'>screen</a> <span class="Special">&lt;-</span> print <a href='081print.mu.html#L4'>screen</a>, space, <span class="Constant">7/white</span>, bg-color  <span class="Comment"># foreground color is mostly unused except if the cursor shows up at this cell</span>
+<span id="L423" class="LineNr">423 </span>  <span class="Conceal">¦</span> column <span class="Special">&lt;-</span> add column,<span class="Constant"> 1</span>
+<span id="L424" class="LineNr">424 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L425" class="LineNr">425 </span>  <span class="Delimiter">}</span>
 <span id="L426" class="LineNr">426 </span>]
 <span id="L427" class="LineNr">427 </span>
@@ -490,10 +491,10 @@ if ('onhashchange' in window) {
 <span id="L429" class="LineNr">429 </span>  <span class="Constant">local-scope</span>
 <span id="L430" class="LineNr">430 </span>  <span class="Constant">load-ingredients</span>
 <span id="L431" class="LineNr">431 </span>  <span class="Delimiter">{</span>
-<span id="L432" class="LineNr">432 </span>    <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
-<span id="L433" class="LineNr">433 </span>    <span class="Comment"># real screen</span>
-<span id="L434" class="LineNr">434 </span>    row, column <span class="Special">&lt;-</span> cursor-position-on-display
-<span id="L435" class="LineNr">435 </span>    <span class="muControl">return</span>
+<span id="L432" class="LineNr">432 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
+<span id="L433" class="LineNr">433 </span>  <span class="Conceal">¦</span> <span class="Comment"># real screen</span>
+<span id="L434" class="LineNr">434 </span>  <span class="Conceal">¦</span> row, column <span class="Special">&lt;-</span> cursor-position-on-display
+<span id="L435" class="LineNr">435 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L436" class="LineNr">436 </span>  <span class="Delimiter">}</span>
 <span id="L437" class="LineNr">437 </span>  <span class="Comment"># fake screen</span>
 <span id="L438" class="LineNr">438 </span>  row:num <span class="Special">&lt;-</span> get *screen, <span class="Constant">cursor-row:offset</span>
@@ -504,10 +505,10 @@ if ('onhashchange' in window) {
 <span id="L443" class="LineNr">443 </span>  <span class="Constant">local-scope</span>
 <span id="L444" class="LineNr">444 </span>  <span class="Constant">load-ingredients</span>
 <span id="L445" class="LineNr">445 </span>  <span class="Delimiter">{</span>
-<span id="L446" class="LineNr">446 </span>    <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
-<span id="L447" class="LineNr">447 </span>    <span class="Comment"># real screen</span>
-<span id="L448" class="LineNr">448 </span>    move-cursor-on-display new-row, new-column
-<span id="L449" class="LineNr">449 </span>    <span class="muControl">return</span>
+<span id="L446" class="LineNr">446 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
+<span id="L447" class="LineNr">447 </span>  <span class="Conceal">¦</span> <span class="Comment"># real screen</span>
+<span id="L448" class="LineNr">448 </span>  <span class="Conceal">¦</span> move-cursor-on-display new-row, new-column
+<span id="L449" class="LineNr">449 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L450" class="LineNr">450 </span>  <span class="Delimiter">}</span>
 <span id="L451" class="LineNr">451 </span>  <span class="Comment"># fake screen</span>
 <span id="L452" class="LineNr">452 </span>  *screen <span class="Special">&lt;-</span> put *screen, <span class="Constant">cursor-row:offset</span>, new-row
@@ -523,25 +524,25 @@ if ('onhashchange' in window) {
 <span id="L462" class="LineNr">462 </span>  <span class="Comment"># move cursor to start of line</span>
 <span id="L463" class="LineNr">463 </span>  fake-screen <span class="Special">&lt;-</span> <a href='081print.mu.html#L442'>move-cursor</a> fake-screen, <span class="Constant">0/row</span>, <span class="Constant">0/column</span>
 <span id="L464" class="LineNr">464 </span>  run [
-<span id="L465" class="LineNr">465 </span>    fake-screen <span class="Special">&lt;-</span> <a href='081print.mu.html#L381'>clear-line</a> fake-screen
-<span id="L466" class="LineNr">466 </span>    cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
-<span id="L467" class="LineNr">467 </span>    10:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
+<span id="L465" class="LineNr">465 </span>  <span class="Conceal">¦</span> fake-screen <span class="Special">&lt;-</span> <a href='081print.mu.html#L381'>clear-line</a> fake-screen
+<span id="L466" class="LineNr">466 </span>  <span class="Conceal">¦</span> cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
+<span id="L467" class="LineNr">467 </span>  <span class="Conceal">¦</span> 10:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
 <span id="L468" class="LineNr">468 </span>  ]
 <span id="L469" class="LineNr">469 </span>  <span class="Comment"># screen should be blank</span>
 <span id="L470" class="LineNr">470 </span>  memory-should-contain [
-<span id="L471" class="LineNr">471 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
-<span id="L472" class="LineNr">472 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
-<span id="L473" class="LineNr">473 </span>   <span class="Constant"> 12</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>
-<span id="L474" class="LineNr">474 </span>   <span class="Constant"> 13</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
-<span id="L475" class="LineNr">475 </span>   <span class="Constant"> 14</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>
-<span id="L476" class="LineNr">476 </span>   <span class="Constant"> 15</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
-<span id="L477" class="LineNr">477 </span>   <span class="Constant"> 16</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>
-<span id="L478" class="LineNr">478 </span>   <span class="Constant"> 17</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
-<span id="L479" class="LineNr">479 </span>   <span class="Constant"> 18</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>
-<span id="L480" class="LineNr">480 </span>   <span class="Constant"> 19</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
-<span id="L481" class="LineNr">481 </span>   <span class="Constant"> 20</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>
-<span id="L482" class="LineNr">482 </span>   <span class="Constant"> 21</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
-<span id="L483" class="LineNr">483 </span>   <span class="Constant"> 22</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>
+<span id="L471" class="LineNr">471 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
+<span id="L472" class="LineNr">472 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L473" class="LineNr">473 </span>  <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>
+<span id="L474" class="LineNr">474 </span>  <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L475" class="LineNr">475 </span>  <span class="Conceal">¦</span><span class="Constant"> 14</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>
+<span id="L476" class="LineNr">476 </span>  <span class="Conceal">¦</span><span class="Constant"> 15</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L477" class="LineNr">477 </span>  <span class="Conceal">¦</span><span class="Constant"> 16</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>
+<span id="L478" class="LineNr">478 </span>  <span class="Conceal">¦</span><span class="Constant"> 17</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L479" class="LineNr">479 </span>  <span class="Conceal">¦</span><span class="Constant"> 18</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>
+<span id="L480" class="LineNr">480 </span>  <span class="Conceal">¦</span><span class="Constant"> 19</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L481" class="LineNr">481 </span>  <span class="Conceal">¦</span><span class="Constant"> 20</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>
+<span id="L482" class="LineNr">482 </span>  <span class="Conceal">¦</span><span class="Constant"> 21</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L483" class="LineNr">483 </span>  <span class="Conceal">¦</span><span class="Constant"> 22</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>
 <span id="L484" class="LineNr">484 </span>  ]
 <span id="L485" class="LineNr">485 </span>]
 <span id="L486" class="LineNr">486 </span>
@@ -549,10 +550,10 @@ if ('onhashchange' in window) {
 <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>  <span class="Delimiter">{</span>
-<span id="L491" class="LineNr">491 </span>    <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
-<span id="L492" class="LineNr">492 </span>    <span class="Comment"># real screen</span>
-<span id="L493" class="LineNr">493 </span>    move-cursor-down-on-display
-<span id="L494" class="LineNr">494 </span>    <span class="muControl">return</span>
+<span id="L491" class="LineNr">491 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
+<span id="L492" class="LineNr">492 </span>  <span class="Conceal">¦</span> <span class="Comment"># real screen</span>
+<span id="L493" class="LineNr">493 </span>  <span class="Conceal">¦</span> move-cursor-down-on-display
+<span id="L494" class="LineNr">494 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L495" class="LineNr">495 </span>  <span class="Delimiter">}</span>
 <span id="L496" class="LineNr">496 </span>  <span class="Comment"># fake screen</span>
 <span id="L497" class="LineNr">497 </span>  height:num <span class="Special">&lt;-</span> get *screen, <span class="Constant">num-rows:offset</span>
@@ -568,10 +569,10 @@ if ('onhashchange' in window) {
 <span id="L507" class="LineNr">507 </span>  <span class="Constant">local-scope</span>
 <span id="L508" class="LineNr">508 </span>  <span class="Constant">load-ingredients</span>
 <span id="L509" class="LineNr">509 </span>  <span class="Delimiter">{</span>
-<span id="L510" class="LineNr">510 </span>    <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
-<span id="L511" class="LineNr">511 </span>    <span class="Comment"># real screen</span>
-<span id="L512" class="LineNr">512 </span>    move-cursor-up-on-display
-<span id="L513" class="LineNr">513 </span>    <span class="muControl">return</span>
+<span id="L510" class="LineNr">510 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
+<span id="L511" class="LineNr">511 </span>  <span class="Conceal">¦</span> <span class="Comment"># real screen</span>
+<span id="L512" class="LineNr">512 </span>  <span class="Conceal">¦</span> move-cursor-up-on-display
+<span id="L513" class="LineNr">513 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L514" class="LineNr">514 </span>  <span class="Delimiter">}</span>
 <span id="L515" class="LineNr">515 </span>  <span class="Comment"># fake screen</span>
 <span id="L516" class="LineNr">516 </span>  row:num <span class="Special">&lt;-</span> get *screen, <span class="Constant">cursor-row:offset</span>
@@ -585,10 +586,10 @@ if ('onhashchange' in window) {
 <span id="L524" class="LineNr">524 </span>  <span class="Constant">local-scope</span>
 <span id="L525" class="LineNr">525 </span>  <span class="Constant">load-ingredients</span>
 <span id="L526" class="LineNr">526 </span>  <span class="Delimiter">{</span>
-<span id="L527" class="LineNr">527 </span>    <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
-<span id="L528" class="LineNr">528 </span>    <span class="Comment"># real screen</span>
-<span id="L529" class="LineNr">529 </span>    move-cursor-right-on-display
-<span id="L530" class="LineNr">530 </span>    <span class="muControl">return</span>
+<span id="L527" class="LineNr">527 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
+<span id="L528" class="LineNr">528 </span>  <span class="Conceal">¦</span> <span class="Comment"># real screen</span>
+<span id="L529" class="LineNr">529 </span>  <span class="Conceal">¦</span> move-cursor-right-on-display
+<span id="L530" class="LineNr">530 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L531" class="LineNr">531 </span>  <span class="Delimiter">}</span>
 <span id="L532" class="LineNr">532 </span>  <span class="Comment"># fake screen</span>
 <span id="L533" class="LineNr">533 </span>  width:num <span class="Special">&lt;-</span> get *screen, <span class="Constant">num-columns:offset</span>
@@ -604,10 +605,10 @@ if ('onhashchange' in window) {
 <span id="L543" class="LineNr">543 </span>  <span class="Constant">local-scope</span>
 <span id="L544" class="LineNr">544 </span>  <span class="Constant">load-ingredients</span>
 <span id="L545" class="LineNr">545 </span>  <span class="Delimiter">{</span>
-<span id="L546" class="LineNr">546 </span>    <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
-<span id="L547" class="LineNr">547 </span>    <span class="Comment"># real screen</span>
-<span id="L548" class="LineNr">548 </span>    move-cursor-left-on-display
-<span id="L549" class="LineNr">549 </span>    <span class="muControl">return</span>
+<span id="L546" class="LineNr">546 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> <a href='081print.mu.html#L4'>screen</a>
+<span id="L547" class="LineNr">547 </span>  <span class="Conceal">¦</span> <span class="Comment"># real screen</span>
+<span id="L548" class="LineNr">548 </span>  <span class="Conceal">¦</span> move-cursor-left-on-display
+<span id="L549" class="LineNr">549 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L550" class="LineNr">550 </span>  <span class="Delimiter">}</span>
 <span id="L551" class="LineNr">551 </span>  <span class="Comment"># fake screen</span>
 <span id="L552" class="LineNr">552 </span>  column:num <span class="Special">&lt;-</span> get *screen, <span class="Constant">cursor-column:offset</span>
@@ -643,10 +644,10 @@ if ('onhashchange' in window) {
 <span id="L582" class="LineNr">582 </span>  <span class="Constant">local-scope</span>
 <span id="L583" class="LineNr">583 </span>  <span class="Constant">load-ingredients</span>
 <span id="L584" class="LineNr">584 </span>  <span class="Delimiter">{</span>
-<span id="L585" class="LineNr">585 </span>    <span class="muControl">break-unless</span> <a href='081print.mu.html#L4'>screen</a>
-<span id="L586" class="LineNr">586 </span>    <span class="Comment"># fake screen</span>
-<span id="L587" class="LineNr">587 </span>    width <span class="Special">&lt;-</span> get *screen, <span class="Constant">num-columns:offset</span>
-<span id="L588" class="LineNr">588 </span>    <span class="muControl">return</span>
+<span id="L585" class="LineNr">585 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='081print.mu.html#L4'>screen</a>
+<span id="L586" class="LineNr">586 </span>  <span class="Conceal">¦</span> <span class="Comment"># fake screen</span>
+<span id="L587" class="LineNr">587 </span>  <span class="Conceal">¦</span> width <span class="Special">&lt;-</span> get *screen, <span class="Constant">num-columns:offset</span>
+<span id="L588" class="LineNr">588 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L589" class="LineNr">589 </span>  <span class="Delimiter">}</span>
 <span id="L590" class="LineNr">590 </span>  <span class="Comment"># real screen</span>
 <span id="L591" class="LineNr">591 </span>  width <span class="Special">&lt;-</span> display-width
@@ -656,10 +657,10 @@ if ('onhashchange' in window) {
 <span id="L595" class="LineNr">595 </span>  <span class="Constant">local-scope</span>
 <span id="L596" class="LineNr">596 </span>  <span class="Constant">load-ingredients</span>
 <span id="L597" class="LineNr">597 </span>  <span class="Delimiter">{</span>
-<span id="L598" class="LineNr">598 </span>    <span class="muControl">break-unless</span> <a href='081print.mu.html#L4'>screen</a>
-<span id="L599" class="LineNr">599 </span>    <span class="Comment"># fake screen</span>
-<span id="L600" class="LineNr">600 </span>    height <span class="Special">&lt;-</span> get *screen, <span class="Constant">num-rows:offset</span>
-<span id="L601" class="LineNr">601 </span>    <span class="muControl">return</span>
+<span id="L598" class="LineNr">598 </span>  <span class="Conceal">¦</span> <span class="muControl">break-unless</span> <a href='081print.mu.html#L4'>screen</a>
+<span id="L599" class="LineNr">599 </span>  <span class="Conceal">¦</span> <span class="Comment"># fake screen</span>
+<span id="L600" class="LineNr">600 </span>  <span class="Conceal">¦</span> height <span class="Special">&lt;-</span> get *screen, <span class="Constant">num-rows:offset</span>
+<span id="L601" class="LineNr">601 </span>  <span class="Conceal">¦</span> <span class="muControl">return</span>
 <span id="L602" class="LineNr">602 </span>  <span class="Delimiter">}</span>
 <span id="L603" class="LineNr">603 </span>  <span class="Comment"># real screen</span>
 <span id="L604" class="LineNr">604 </span>  height <span class="Special">&lt;-</span> display-height
@@ -702,25 +703,25 @@ if ('onhashchange' in window) {
 <span id="L641" class="LineNr">641 </span>  <span class="Constant">load-ingredients</span>
 <span id="L642" class="LineNr">642 </span>  color:num, color-found?:bool <span class="Special">&lt;-</span> <span class="Constant">next-ingredient</span>
 <span id="L643" class="LineNr">643 </span>  <span class="Delimiter">{</span>
-<span id="L644" class="LineNr">644 </span>    <span class="Comment"># default color to white</span>
-<span id="L645" class="LineNr">645 </span>    <span class="muControl">break-if</span> color-found?
-<span id="L646" class="LineNr">646 </span>    color <span class="Special">&lt;-</span> copy <span class="Constant">7/white</span>
+<span id="L644" class="LineNr">644 </span>  <span class="Conceal">¦</span> <span class="Comment"># default color to white</span>
+<span id="L645" class="LineNr">645 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> color-found?
+<span id="L646" class="LineNr">646 </span>  <span class="Conceal">¦</span> color <span class="Special">&lt;-</span> copy <span class="Constant">7/white</span>
 <span id="L647" class="LineNr">647 </span>  <span class="Delimiter">}</span>
 <span id="L648" class="LineNr">648 </span>  bg-color:num, bg-color-found?:bool <span class="Special">&lt;-</span> <span class="Constant">next-ingredient</span>
 <span id="L649" class="LineNr">649 </span>  <span class="Delimiter">{</span>
-<span id="L650" class="LineNr">650 </span>    <span class="Comment"># default bg-color to black</span>
-<span id="L651" class="LineNr">651 </span>    <span class="muControl">break-if</span> bg-color-found?
-<span id="L652" class="LineNr">652 </span>    bg-color <span class="Special">&lt;-</span> copy <span class="Constant">0/black</span>
+<span id="L650" class="LineNr">650 </span>  <span class="Conceal">¦</span> <span class="Comment"># default bg-color to black</span>
+<span id="L651" class="LineNr">651 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> bg-color-found?
+<span id="L652" class="LineNr">652 </span>  <span class="Conceal">¦</span> bg-color <span class="Special">&lt;-</span> copy <span class="Constant">0/black</span>
 <span id="L653" class="LineNr">653 </span>  <span class="Delimiter">}</span>
 <span id="L654" class="LineNr">654 </span>  len:num <span class="Special">&lt;-</span> length *s
 <span id="L655" class="LineNr">655 </span>  i:num <span class="Special">&lt;-</span> copy<span class="Constant"> 0</span>
 <span id="L656" class="LineNr">656 </span>  <span class="Delimiter">{</span>
-<span id="L657" class="LineNr">657 </span>    done?:bool <span class="Special">&lt;-</span> greater-or-equal i, len
-<span id="L658" class="LineNr">658 </span>    <span class="muControl">break-if</span> done?
-<span id="L659" class="LineNr">659 </span>    c:char <span class="Special">&lt;-</span> index *s, i
-<span id="L660" class="LineNr">660 </span>    print <a href='081print.mu.html#L4'>screen</a>, c, color, bg-color
-<span id="L661" class="LineNr">661 </span>    i <span class="Special">&lt;-</span> add i,<span class="Constant"> 1</span>
-<span id="L662" class="LineNr">662 </span>    <span class="muControl">loop</span>
+<span id="L657" class="LineNr">657 </span>  <span class="Conceal">¦</span> done?:bool <span class="Special">&lt;-</span> greater-or-equal i, len
+<span id="L658" class="LineNr">658 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> done?
+<span id="L659" class="LineNr">659 </span>  <span class="Conceal">¦</span> c:char <span class="Special">&lt;-</span> index *s, i
+<span id="L660" class="LineNr">660 </span>  <span class="Conceal">¦</span> print <a href='081print.mu.html#L4'>screen</a>, c, color, bg-color
+<span id="L661" class="LineNr">661 </span>  <span class="Conceal">¦</span> i <span class="Special">&lt;-</span> add i,<span class="Constant"> 1</span>
+<span id="L662" class="LineNr">662 </span>  <span class="Conceal">¦</span> <span class="muControl">loop</span>
 <span id="L663" class="LineNr">663 </span>  <span class="Delimiter">}</span>
 <span id="L664" class="LineNr">664 </span>]
 <span id="L665" class="LineNr">665 </span>
@@ -728,20 +729,20 @@ if ('onhashchange' in window) {
 <span id="L667" class="LineNr">667 </span>  <span class="Constant">local-scope</span>
 <span id="L668" class="LineNr">668 </span>  fake-screen:&amp;:<a href='081print.mu.html#L4'>screen</a> <span class="Special">&lt;-</span> <a href='081print.mu.html#L17'>new-fake-screen</a> <span class="Constant">3/width</span>, <span class="Constant">2/height</span>
 <span id="L669" class="LineNr">669 </span>  run [
-<span id="L670" class="LineNr">670 </span>    fake-screen <span class="Special">&lt;-</span> print fake-screen, <span class="Constant">[abcd]</span>
-<span id="L671" class="LineNr">671 </span>    cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
-<span id="L672" class="LineNr">672 </span>    10:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
+<span id="L670" class="LineNr">670 </span>  <span class="Conceal">¦</span> fake-screen <span class="Special">&lt;-</span> print fake-screen, <span class="Constant">[abcd]</span>
+<span id="L671" class="LineNr">671 </span>  <span class="Conceal">¦</span> cell:&amp;:@:<a href='081print.mu.html#L12'>screen-cell</a> <span class="Special">&lt;-</span> get *fake-screen, <span class="Constant">data:offset</span>
+<span id="L672" class="LineNr">672 </span>  <span class="Conceal">¦</span> 10:@:<a href='081print.mu.html#L12'>screen-cell</a>/<span class="Special">raw</span> <span class="Special">&lt;-</span> copy *cell
 <span id="L673" class="LineNr">673 </span>  ]
 <span id="L674" class="LineNr">674 </span>  memory-should-contain [
-<span id="L675" class="LineNr">675 </span>   <span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
-<span id="L676" class="LineNr">676 </span>   <span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span>  <span class="Comment"># 'a'</span>
-<span id="L677" class="LineNr">677 </span>   <span class="Constant"> 12</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L678" class="LineNr">678 </span>   <span class="Constant"> 13</span> <span class="Special">&lt;-</span><span class="Constant"> 98</span>  <span class="Comment"># 'b'</span>
-<span id="L679" class="LineNr">679 </span>   <span class="Constant"> 14</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L680" class="LineNr">680 </span>   <span class="Constant"> 15</span> <span class="Special">&lt;-</span><span class="Constant"> 100</span>  <span class="Comment"># 'd' overwrites 'c'</span>
-<span id="L681" class="LineNr">681 </span>   <span class="Constant"> 16</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
-<span id="L682" class="LineNr">682 </span>    <span class="Comment"># rest of screen is empty</span>
-<span id="L683" class="LineNr">683 </span>   <span class="Constant"> 17</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
+<span id="L675" class="LineNr">675 </span>  <span class="Conceal">¦</span><span class="Constant"> 10</span> <span class="Special">&lt;-</span><span class="Constant"> 6</span>  <span class="Comment"># width*height</span>
+<span id="L676" class="LineNr">676 </span>  <span class="Conceal">¦</span><span class="Constant"> 11</span> <span class="Special">&lt;-</span><span class="Constant"> 97</span>  <span class="Comment"># 'a'</span>
+<span id="L677" class="LineNr">677 </span>  <span class="Conceal">¦</span><span class="Constant"> 12</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L678" class="LineNr">678 </span>  <span class="Conceal">¦</span><span class="Constant"> 13</span> <span class="Special">&lt;-</span><span class="Constant"> 98</span>  <span class="Comment"># 'b'</span>
+<span id="L679" class="LineNr">679 </span>  <span class="Conceal">¦</span><span class="Constant"> 14</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L680" class="LineNr">680 </span>  <span class="Conceal">¦</span><span class="Constant"> 15</span> <span class="Special">&lt;-</span><span class="Constant"> 100</span>  <span class="Comment"># 'd' overwrites 'c'</span>
+<span id="L681" class="LineNr">681 </span>  <span class="Conceal">¦</span><span class="Constant"> 16</span> <span class="Special">&lt;-</span><span class="Constant"> 7</span>  <span class="Comment"># white</span>
+<span id="L682" class="LineNr">682 </span>  <span class="Conceal">¦</span> <span class="Comment"># rest of screen is empty</span>
+<span id="L683" class="LineNr">683 </span>  <span class="Conceal">¦</span><span class="Constant"> 17</span> <span class="Special">&lt;-</span><span class="Constant"> 0</span>
 <span id="L684" class="LineNr">684 </span>  ]
 <span id="L685" class="LineNr">685 </span>]
 <span id="L686" class="LineNr">686 </span>
@@ -750,15 +751,15 @@ if ('onhashchange' in window) {
 <span id="L689" class="LineNr">689 </span>  <span class="Constant">load-ingredients</span>
 <span id="L690" class="LineNr">690 </span>  color:num, color-found?:bool <span class="Special">&lt;-</span> <span class="Constant">next-ingredient</span>
 <span id="L691" class="LineNr">691 </span>  <span class="Delimiter">{</span>
-<span id="L692" class="LineNr">692 </span>    <span class="Comment"># default color to white</span>
-<span id="L693" class="LineNr">693 </span>    <span class="muControl">break-if</span> color-found?
-<span id="L694" class="LineNr">694 </span>    color <span class="Special">&lt;-</span> copy <span class="Constant">7/white</span>
+<span id="L692" class="LineNr">692 </span>  <span class="Conceal">¦</span> <span class="Comment"># default color to white</span>
+<span id="L693" class="LineNr">693 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> color-found?
+<span id="L694" class="LineNr">694 </span>  <span class="Conceal">¦</span> color <span class="Special">&lt;-</span> copy <span class="Constant">7/white</span>
 <span id="L695" class="LineNr">695 </span>  <span class="Delimiter">}</span>
 <span id="L696" class="LineNr">696 </span>  bg-color:num, bg-color-found?:bool <span class="Special">&lt;-</span> <span class="Constant">next-ingredient</span>
 <span id="L697" class="LineNr">697 </span>  <span class="Delimiter">{</span>
-<span id="L698" class="LineNr">698 </span>    <span class="Comment"># default bg-color to black</span>
-<span id="L699" class="LineNr">699 </span>    <span class="muControl">break-if</span> bg-color-found?
-<span id="L700" class="LineNr">700 </span>    bg-color <span class="Special">&lt;-</span> copy <span class="Constant">0/black</span>
+<span id="L698" class="LineNr">698 </span>  <span class="Conceal">¦</span> <span class="Comment"># default bg-color to black</span>
+<span id="L699" class="LineNr">699 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> bg-color-found?
+<span id="L700" class="LineNr">700 </span>  <span class="Conceal">¦</span> bg-color <span class="Special">&lt;-</span> copy <span class="Constant">0/black</span>
 <span id="L701" class="LineNr">701 </span>  <span class="Delimiter">}</span>
 <span id="L702" class="LineNr">702 </span>  <span class="Comment"># todo: other bases besides decimal</span>
 <span id="L703" class="LineNr">703 </span>  s:text <span class="Special">&lt;-</span> to-text n
@@ -770,15 +771,15 @@ if ('onhashchange' in window) {
 <span id="L709" class="LineNr">709 </span>  <span class="Constant">load-ingredients</span>
 <span id="L710" class="LineNr">710 </span>  color:num, color-found?:bool <span class="Special">&lt;-</span> <span class="Constant">next-ingredient</span>
 <span id="L711" class="LineNr">711 </span>  <span class="Delimiter">{</span>
-<span id="L712" class="LineNr">712 </span>    <span class="Comment"># default color to white</span>
-<span id="L713" class="LineNr">713 </span>    <span class="muControl">break-if</span> color-found?
-<span id="L714" class="LineNr">714 </span>    color <span class="Special">&lt;-</span> copy <span class="Constant">7/white</span>
+<span id="L712" class="LineNr">712 </span>  <span class="Conceal">¦</span> <span class="Comment"># default color to white</span>
+<span id="L713" class="LineNr">713 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> color-found?
+<span id="L714" class="LineNr">714 </span>  <span class="Conceal">¦</span> color <span class="Special">&lt;-</span> copy <span class="Constant">7/white</span>
 <span id="L715" class="LineNr">715 </span>  <span class="Delimiter">}</span>
 <span id="L716" class="LineNr">716 </span>  bg-color:num, bg-color-found?:bool <span class="Special">&lt;-</span> <span class="Constant">next-ingredient</span>
 <span id="L717" class="LineNr">717 </span>  <span class="Delimiter">{</span>
-<span id="L718" class="LineNr">718 </span>    <span class="Comment"># default bg-color to black</span>
-<span id="L719" class="LineNr">719 </span>    <span class="muControl">break-if</span> bg-color-found?
-<span id="L720" class="LineNr">720 </span>    bg-color <span class="Special">&lt;-</span> copy <span class="Constant">0/black</span>
+<span id="L718" class="LineNr">718 </span>  <span class="Conceal">¦</span> <span class="Comment"># default bg-color to black</span>
+<span id="L719" class="LineNr">719 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> bg-color-found?
+<span id="L720" class="LineNr">720 </span>  <span class="Conceal">¦</span> bg-color <span class="Special">&lt;-</span> copy <span class="Constant">0/black</span>
 <span id="L721" class="LineNr">721 </span>  <span class="Delimiter">}</span>
 <span id="L722" class="LineNr">722 </span>  n2:num <span class="Special">&lt;-</span> copy n
 <span id="L723" class="LineNr">723 </span>  <a href='081print.mu.html#L4'>screen</a> <span class="Special">&lt;-</span> print <a href='081print.mu.html#L4'>screen</a>, n2, color, bg-color
@@ -789,15 +790,15 @@ if ('onhashchange' in window) {
 <span id="L728" class="LineNr">728 </span>  <span class="Constant">load-ingredients</span>
 <span id="L729" class="LineNr">729 </span>  color:num, color-found?:bool <span class="Special">&lt;-</span> <span class="Constant">next-ingredient</span>
 <span id="L730" class="LineNr">730 </span>  <span class="Delimiter">{</span>
-<span id="L731" class="LineNr">731 </span>    <span class="Comment"># default color to white</span>
-<span id="L732" class="LineNr">732 </span>    <span class="muControl">break-if</span> color-found?
-<span id="L733" class="LineNr">733 </span>    color <span class="Special">&lt;-</span> copy <span class="Constant">7/white</span>
+<span id="L731" class="LineNr">731 </span>  <span class="Conceal">¦</span> <span class="Comment"># default color to white</span>
+<span id="L732" class="LineNr">732 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> color-found?
+<span id="L733" class="LineNr">733 </span>  <span class="Conceal">¦</span> color <span class="Special">&lt;-</span> copy <span class="Constant">7/white</span>
 <span id="L734" class="LineNr">734 </span>  <span class="Delimiter">}</span>
 <span id="L735" class="LineNr">735 </span>  bg-color:num, bg-color-found?:bool <span class="Special">&lt;-</span> <span class="Constant">next-ingredient</span>
 <span id="L736" class="LineNr">736 </span>  <span class="Delimiter">{</span>
-<span id="L737" class="LineNr">737 </span>    <span class="Comment"># default bg-color to black</span>
-<span id="L738" class="LineNr">738 </span>    <span class="muControl">break-if</span> bg-color-found?
-<span id="L739" class="LineNr">739 </span>    bg-color <span class="Special">&lt;-</span> copy <span class="Constant">0/black</span>
+<span id="L737" class="LineNr">737 </span>  <span class="Conceal">¦</span> <span class="Comment"># default bg-color to black</span>
+<span id="L738" class="LineNr">738 </span>  <span class="Conceal">¦</span> <span class="muControl">break-if</span> bg-color-found?
+<span id="L739" class="LineNr">739 </span>  <span class="Conceal">¦</span> bg-color <span class="Special">&lt;-</span> copy <span class="Constant">0/black</span>
 <span id="L740" class="LineNr">740 </span>  <span class="Delimiter">}</span>
 <span id="L741" class="LineNr">741 </span>  n2:num <span class="Special">&lt;-</span> copy n
 <span id="L742" class="LineNr">742 </span>  <a href='081print.mu.html#L4'>screen</a> <span class="Special">&lt;-</span> print <a href='081print.mu.html#L4'>screen</a>, n2, color, bg-color