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Diffstat (limited to 'html/040brace.cc.html')
-rw-r--r--html/040brace.cc.html305
1 files changed, 153 insertions, 152 deletions
diff --git a/html/040brace.cc.html b/html/040brace.cc.html
index 2a1e286a..3befa819 100644
--- a/html/040brace.cc.html
+++ b/html/040brace.cc.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; }
-.Constant { color: #00a0a0; }
-.Special { color: #c00000; }
+.Conceal { color: #4e4e4e; }
 .muRecipe { color: #ff8700; }
-.traceContains { color: #008000; }
+.Special { color: #c00000; }
 .Comment { color: #9090ff; }
 .Delimiter { color: #800080; }
 .LineNr { color: #444444; }
 .Identifier { color: #c0a020; }
+.Constant { color: #00a0a0; }
 .Normal { color: #eeeeee; background-color: #080808; padding-bottom: 1px; }
 .cSpecial { color: #008000; }
+.traceContains { color: #008000; }
 -->
 </style>
 
@@ -84,11 +85,11 @@ if ('onhashchange' in window) {
 <span id="L23" class="LineNr"> 23 </span><span class="Delimiter">:(scenario brace_conversion)</span>
 <span id="L24" class="LineNr"> 24 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
 <span id="L25" class="LineNr"> 25 </span>  <span class="Delimiter">{</span>
-<span id="L26" class="LineNr"> 26 </span>    <span class="Identifier">break</span>
-<span id="L27" class="LineNr"> 27 </span>    <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L26" class="LineNr"> 26 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
+<span id="L27" class="LineNr"> 27 </span>  <span class="Conceal">¦</span> <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L28" class="LineNr"> 28 </span>  <span class="Delimiter">}</span>
 <span id="L29" class="LineNr"> 29 </span>]
-<span id="L30" class="LineNr"> 30 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L98'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
+<span id="L30" class="LineNr"> 30 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
 <span id="L31" class="LineNr"> 31 </span><span class="traceContains">+transform: jump 1:offset</span>
 <span id="L32" class="LineNr"> 32 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L33" class="LineNr"> 33 </span>
@@ -100,95 +101,95 @@ if ('onhashchange' in window) {
 <span id="L39" class="LineNr"> 39 </span>  <span class="Normal">const</span> <span class="Normal">int</span> OPEN = <span class="Constant">0</span><span class="Delimiter">,</span> CLOSE = <span class="Constant">1</span><span class="Delimiter">;</span>
 <span id="L40" class="LineNr"> 40 </span>  <span class="Comment">// use signed integer for step index because we'll be doing arithmetic on it</span>
 <span id="L41" class="LineNr"> 41 </span>  list&lt;pair&lt;<span class="Normal">int</span><span class="Comment">/*</span><span class="Comment">OPEN/CLOSE</span><span class="Comment">*/</span><span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">step</span><span class="Comment">*/</span><span class="Normal">int</span>&gt; &gt; braces<span class="Delimiter">;</span>
-<span id="L42" class="LineNr"> 42 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- <a href='012transform.cc.html#L98'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L42" class="LineNr"> 42 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L43" class="LineNr"> 43 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> index = <span class="Constant">0</span><span class="Delimiter">;</span>  index &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">);</span>  ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L44" class="LineNr"> 44 </span>    <span class="Normal">const</span> instruction&amp; inst = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
-<span id="L45" class="LineNr"> 45 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label == <span class="Constant">&quot;{&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L46" class="LineNr"> 46 </span>      <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;push (open, &quot;</span> &lt;&lt; index &lt;&lt; <span class="Constant">&quot;)&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
-<span id="L47" class="LineNr"> 47 </span>      braces<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;<span class="Normal">int</span><span class="Delimiter">,</span><span class="Normal">int</span>&gt;<span class="Delimiter">(</span>OPEN<span class="Delimiter">,</span> index<span class="Delimiter">));</span>
-<span id="L48" class="LineNr"> 48 </span>    <span class="Delimiter">}</span>
-<span id="L49" class="LineNr"> 49 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label == <span class="Constant">&quot;}&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L50" class="LineNr"> 50 </span>      <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;push (close, &quot;</span> &lt;&lt; index &lt;&lt; <span class="Constant">&quot;)&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
-<span id="L51" class="LineNr"> 51 </span>      braces<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;<span class="Normal">int</span><span class="Delimiter">,</span><span class="Normal">int</span>&gt;<span class="Delimiter">(</span>CLOSE<span class="Delimiter">,</span> index<span class="Delimiter">));</span>
-<span id="L52" class="LineNr"> 52 </span>    <span class="Delimiter">}</span>
+<span id="L44" class="LineNr"> 44 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; inst = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
+<span id="L45" class="LineNr"> 45 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label == <span class="Constant">&quot;{&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L46" class="LineNr"> 46 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;push (open, &quot;</span> &lt;&lt; index &lt;&lt; <span class="Constant">&quot;)&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L47" class="LineNr"> 47 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> braces<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;<span class="Normal">int</span><span class="Delimiter">,</span><span class="Normal">int</span>&gt;<span class="Delimiter">(</span>OPEN<span class="Delimiter">,</span> index<span class="Delimiter">));</span>
+<span id="L48" class="LineNr"> 48 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L49" class="LineNr"> 49 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label == <span class="Constant">&quot;}&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L50" class="LineNr"> 50 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;push (close, &quot;</span> &lt;&lt; index &lt;&lt; <span class="Constant">&quot;)&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L51" class="LineNr"> 51 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> braces<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;<span class="Normal">int</span><span class="Delimiter">,</span><span class="Normal">int</span>&gt;<span class="Delimiter">(</span>CLOSE<span class="Delimiter">,</span> index<span class="Delimiter">));</span>
+<span id="L52" class="LineNr"> 52 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L53" class="LineNr"> 53 </span>  <span class="Delimiter">}</span>
 <span id="L54" class="LineNr"> 54 </span>  stack&lt;<span class="Comment">/*</span><span class="Comment">step</span><span class="Comment">*/</span><span class="Normal">int</span>&gt; open_braces<span class="Delimiter">;</span>
 <span id="L55" class="LineNr"> 55 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> index = <span class="Constant">0</span><span class="Delimiter">;</span>  index &lt; <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">);</span>  ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L56" class="LineNr"> 56 </span>    instruction&amp; inst = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
-<span id="L57" class="LineNr"> 57 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label == <span class="Constant">&quot;{&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L58" class="LineNr"> 58 </span>      open_braces<span class="Delimiter">.</span>push<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
-<span id="L59" class="LineNr"> 59 </span>      <span class="Identifier">continue</span><span class="Delimiter">;</span>
-<span id="L60" class="LineNr"> 60 </span>    <span class="Delimiter">}</span>
-<span id="L61" class="LineNr"> 61 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label == <span class="Constant">&quot;}&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L62" class="LineNr"> 62 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>open_braces<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L63" class="LineNr"> 63 </span>        <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;missing '{' in '&quot;</span> &lt;&lt; get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
-<span id="L64" class="LineNr"> 64 </span>        <span class="Identifier">return</span><span class="Delimiter">;</span>
-<span id="L65" class="LineNr"> 65 </span>      <span class="Delimiter">}</span>
-<span id="L66" class="LineNr"> 66 </span>      open_braces<span class="Delimiter">.</span>pop<span class="Delimiter">();</span>
-<span id="L67" class="LineNr"> 67 </span>      <span class="Identifier">continue</span><span class="Delimiter">;</span>
-<span id="L68" class="LineNr"> 68 </span>    <span class="Delimiter">}</span>
-<span id="L69" class="LineNr"> 69 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>is_label<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
-<span id="L70" class="LineNr"> 70 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;loop&quot;</span>
-<span id="L71" class="LineNr"> 71 </span>         &amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;loop-if&quot;</span>
-<span id="L72" class="LineNr"> 72 </span>         &amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;loop-unless&quot;</span>
-<span id="L73" class="LineNr"> 73 </span>         &amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;break&quot;</span>
-<span id="L74" class="LineNr"> 74 </span>         &amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;break-if&quot;</span>
-<span id="L75" class="LineNr"> 75 </span>         &amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;break-unless&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L76" class="LineNr"> 76 </span>      <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; ...&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
-<span id="L77" class="LineNr"> 77 </span>      <span class="Identifier">continue</span><span class="Delimiter">;</span>
-<span id="L78" class="LineNr"> 78 </span>    <span class="Delimiter">}</span>
-<span id="L79" class="LineNr"> 79 </span>    <span class="Comment">// check for errors</span>
-<span id="L80" class="LineNr"> 80 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-if&quot;</span><span class="Delimiter">)</span> != string::npos || inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-unless&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L81" class="LineNr"> 81 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L82" class="LineNr"> 82 </span>        <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' expects 1 or 2 ingredients, but got none</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
-<span id="L83" class="LineNr"> 83 </span>        <span class="Identifier">continue</span><span class="Delimiter">;</span>
-<span id="L84" class="LineNr"> 84 </span>      <span class="Delimiter">}</span>
-<span id="L85" class="LineNr"> 85 </span>    <span class="Delimiter">}</span>
-<span id="L86" class="LineNr"> 86 </span>    <span class="Comment">// update instruction operation</span>
-<span id="L87" class="LineNr"> 87 </span>    string old_name = inst<span class="Delimiter">.</span>name<span class="Delimiter">;</span>  <span class="Comment">// save a copy</span>
-<span id="L88" class="LineNr"> 88 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-if&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L89" class="LineNr"> 89 </span>      inst<span class="Delimiter">.</span>name = <span class="Constant">&quot;jump-if&quot;</span><span class="Delimiter">;</span>
-<span id="L90" class="LineNr"> 90 </span>      inst<span class="Delimiter">.</span>operation = JUMP_IF<span class="Delimiter">;</span>
-<span id="L91" class="LineNr"> 91 </span>    <span class="Delimiter">}</span>
-<span id="L92" class="LineNr"> 92 </span>    <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-unless&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L93" class="LineNr"> 93 </span>      inst<span class="Delimiter">.</span>name = <span class="Constant">&quot;jump-unless&quot;</span><span class="Delimiter">;</span>
-<span id="L94" class="LineNr"> 94 </span>      inst<span class="Delimiter">.</span>operation = JUMP_UNLESS<span class="Delimiter">;</span>
-<span id="L95" class="LineNr"> 95 </span>    <span class="Delimiter">}</span>
-<span id="L96" class="LineNr"> 96 </span>    <span class="Normal">else</span> <span class="Delimiter">{</span>
-<span id="L97" class="LineNr"> 97 </span>      inst<span class="Delimiter">.</span>name = <span class="Constant">&quot;jump&quot;</span><span class="Delimiter">;</span>
-<span id="L98" class="LineNr"> 98 </span>      inst<span class="Delimiter">.</span>operation = JUMP<span class="Delimiter">;</span>
-<span id="L99" class="LineNr"> 99 </span>    <span class="Delimiter">}</span>
-<span id="L100" class="LineNr">100 </span>    <span class="Comment">// check for explicitly provided targets</span>
-<span id="L101" class="LineNr">101 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-if&quot;</span><span class="Delimiter">)</span> != string::npos || inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-unless&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L102" class="LineNr">102 </span>      <span class="Comment">// conditional branches check arg 1</span>
-<span id="L103" class="LineNr">103 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &gt; <span class="Constant">1</span> &amp;&amp; is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L104" class="LineNr">104 </span>        <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">' '</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;:offset</span><span class="Constant">&quot; &lt;&lt; end();</span>
-<span id="L105" class="LineNr">105 </span>        <span class="Identifier">continue</span><span class="Delimiter">;</span>
-<span id="L106" class="LineNr">106 </span>      <span class="Delimiter">}</span>
-<span id="L107" class="LineNr">107 </span>    <span class="Delimiter">}</span>
-<span id="L108" class="LineNr">108 </span>    <span class="Normal">else</span> <span class="Delimiter">{</span>
-<span id="L109" class="LineNr">109 </span>      <span class="Comment">// unconditional branches check arg 0</span>
-<span id="L110" class="LineNr">110 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L111" class="LineNr">111 </span>        <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jump &quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;:offset</span><span class="Constant">&quot; &lt;&lt; end();</span>
-<span id="L112" class="LineNr">112 </span>        <span class="Identifier">continue</span><span class="Delimiter">;</span>
-<span id="L113" class="LineNr">113 </span>      <span class="Delimiter">}</span>
-<span id="L114" class="LineNr">114 </span>    <span class="Delimiter">}</span>
-<span id="L115" class="LineNr">115 </span>    <span class="Comment">// if implicit, compute target</span>
-<span id="L116" class="LineNr">116 </span>    reagent target<span class="Delimiter">;</span>
-<span id="L117" class="LineNr">117 </span>    target<span class="Delimiter">.</span>type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">&quot;offset&quot;</span><span class="Delimiter">);</span>
-<span id="L118" class="LineNr">118 </span>    target<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
-<span id="L119" class="LineNr">119 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>open_braces<span class="Delimiter">.</span>empty<span class="Delimiter">())</span>
-<span id="L120" class="LineNr">120 </span>      <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; old_name &lt;&lt; <span class="Constant">&quot;' needs a '{' before</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
-<span id="L121" class="LineNr">121 </span>    <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>old_name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;loop&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span>
-<span id="L122" class="LineNr">122 </span>      target<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span>open_braces<span class="Delimiter">.</span>top<span class="Delimiter">()</span>-index<span class="Delimiter">);</span>
-<span id="L123" class="LineNr">123 </span>    <span class="Normal">else</span>  <span class="Comment">// break instruction</span>
-<span id="L124" class="LineNr">124 </span>      target<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span><a href='040brace.cc.html#L136'>matching_brace</a><span class="Delimiter">(</span>open_braces<span class="Delimiter">.</span>top<span class="Delimiter">(),</span> braces<span class="Delimiter">,</span> r<span class="Delimiter">)</span> - index - <span class="Constant">1</span><span class="Delimiter">);</span>
-<span id="L125" class="LineNr">125 </span>    inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>target<span class="Delimiter">);</span>
-<span id="L126" class="LineNr">126 </span>    <span class="Comment">// log computed target</span>
-<span id="L127" class="LineNr">127 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name == <span class="Constant">&quot;jump&quot;</span><span class="Delimiter">)</span>
-<span id="L128" class="LineNr">128 </span>      <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jump &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>target<span class="Delimiter">.</span>value<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;:offset</span><span class="Constant">&quot; &lt;&lt; end();</span>
-<span id="L129" class="LineNr">129 </span>    <span class="Normal">else</span>
-<span id="L130" class="LineNr">130 </span>      <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">' '</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;, &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>target<span class="Delimiter">.</span>value<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;:offset</span><span class="Constant">&quot; &lt;&lt; end();</span>
+<span id="L56" class="LineNr"> 56 </span>  <span class="Conceal">¦</span> instruction&amp; inst = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
+<span id="L57" class="LineNr"> 57 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label == <span class="Constant">&quot;{&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L58" class="LineNr"> 58 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> open_braces<span class="Delimiter">.</span>push<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
+<span id="L59" class="LineNr"> 59 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+<span id="L60" class="LineNr"> 60 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L61" class="LineNr"> 61 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label == <span class="Constant">&quot;}&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L62" class="LineNr"> 62 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>open_braces<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
+<span id="L63" class="LineNr"> 63 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;missing '{' in '&quot;</span> &lt;&lt; get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L64" class="LineNr"> 64 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
+<span id="L65" class="LineNr"> 65 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L66" class="LineNr"> 66 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> open_braces<span class="Delimiter">.</span>pop<span class="Delimiter">();</span>
+<span id="L67" class="LineNr"> 67 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+<span id="L68" class="LineNr"> 68 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L69" class="LineNr"> 69 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>is_label<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+<span id="L70" class="LineNr"> 70 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;loop&quot;</span>
+<span id="L71" class="LineNr"> 71 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span>&amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;loop-if&quot;</span>
+<span id="L72" class="LineNr"> 72 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span>&amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;loop-unless&quot;</span>
+<span id="L73" class="LineNr"> 73 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span>&amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;break&quot;</span>
+<span id="L74" class="LineNr"> 74 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span>&amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;break-if&quot;</span>
+<span id="L75" class="LineNr"> 75 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span>&amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;break-unless&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L76" class="LineNr"> 76 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; ...&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L77" class="LineNr"> 77 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+<span id="L78" class="LineNr"> 78 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L79" class="LineNr"> 79 </span>  <span class="Conceal">¦</span> <span class="Comment">// check for errors</span>
+<span id="L80" class="LineNr"> 80 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-if&quot;</span><span class="Delimiter">)</span> != string::npos || inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-unless&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L81" class="LineNr"> 81 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
+<span id="L82" class="LineNr"> 82 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' expects 1 or 2 ingredients, but got none</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L83" class="LineNr"> 83 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+<span id="L84" class="LineNr"> 84 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L85" class="LineNr"> 85 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L86" class="LineNr"> 86 </span>  <span class="Conceal">¦</span> <span class="Comment">// update instruction operation</span>
+<span id="L87" class="LineNr"> 87 </span>  <span class="Conceal">¦</span> string old_name = inst<span class="Delimiter">.</span>name<span class="Delimiter">;</span>  <span class="Comment">// save a copy</span>
+<span id="L88" class="LineNr"> 88 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-if&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L89" class="LineNr"> 89 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>name = <span class="Constant">&quot;jump-if&quot;</span><span class="Delimiter">;</span>
+<span id="L90" class="LineNr"> 90 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>operation = JUMP_IF<span class="Delimiter">;</span>
+<span id="L91" class="LineNr"> 91 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L92" class="LineNr"> 92 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-unless&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L93" class="LineNr"> 93 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>name = <span class="Constant">&quot;jump-unless&quot;</span><span class="Delimiter">;</span>
+<span id="L94" class="LineNr"> 94 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>operation = JUMP_UNLESS<span class="Delimiter">;</span>
+<span id="L95" class="LineNr"> 95 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L96" class="LineNr"> 96 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Delimiter">{</span>
+<span id="L97" class="LineNr"> 97 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>name = <span class="Constant">&quot;jump&quot;</span><span class="Delimiter">;</span>
+<span id="L98" class="LineNr"> 98 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>operation = JUMP<span class="Delimiter">;</span>
+<span id="L99" class="LineNr"> 99 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L100" class="LineNr">100 </span>  <span class="Conceal">¦</span> <span class="Comment">// check for explicitly provided targets</span>
+<span id="L101" class="LineNr">101 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-if&quot;</span><span class="Delimiter">)</span> != string::npos || inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-unless&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<span id="L102" class="LineNr">102 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// conditional branches check arg 1</span>
+<span id="L103" class="LineNr">103 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &gt; <span class="Constant">1</span> &amp;&amp; is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<span id="L104" class="LineNr">104 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">' '</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;:offset</span><span class="Constant">&quot; &lt;&lt; end();</span>
+<span id="L105" class="LineNr">105 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+<span id="L106" class="LineNr">106 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L107" class="LineNr">107 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L108" class="LineNr">108 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Delimiter">{</span>
+<span id="L109" class="LineNr">109 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// unconditional branches check arg 0</span>
+<span id="L110" class="LineNr">110 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; is_literal<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<span id="L111" class="LineNr">111 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jump &quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;:offset</span><span class="Constant">&quot; &lt;&lt; end();</span>
+<span id="L112" class="LineNr">112 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+<span id="L113" class="LineNr">113 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L114" class="LineNr">114 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L115" class="LineNr">115 </span>  <span class="Conceal">¦</span> <span class="Comment">// if implicit, compute target</span>
+<span id="L116" class="LineNr">116 </span>  <span class="Conceal">¦</span> reagent target<span class="Delimiter">;</span>
+<span id="L117" class="LineNr">117 </span>  <span class="Conceal">¦</span> target<span class="Delimiter">.</span>type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">&quot;offset&quot;</span><span class="Delimiter">);</span>
+<span id="L118" class="LineNr">118 </span>  <span class="Conceal">¦</span> target<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
+<span id="L119" class="LineNr">119 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>open_braces<span class="Delimiter">.</span>empty<span class="Delimiter">())</span>
+<span id="L120" class="LineNr">120 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; old_name &lt;&lt; <span class="Constant">&quot;' needs a '{' before</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L121" class="LineNr">121 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>old_name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;loop&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span>
+<span id="L122" class="LineNr">122 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> target<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span>open_braces<span class="Delimiter">.</span>top<span class="Delimiter">()</span>-index<span class="Delimiter">);</span>
+<span id="L123" class="LineNr">123 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span>  <span class="Comment">// break instruction</span>
+<span id="L124" class="LineNr">124 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> target<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span><a href='040brace.cc.html#L136'>matching_brace</a><span class="Delimiter">(</span>open_braces<span class="Delimiter">.</span>top<span class="Delimiter">(),</span> braces<span class="Delimiter">,</span> r<span class="Delimiter">)</span> - index - <span class="Constant">1</span><span class="Delimiter">);</span>
+<span id="L125" class="LineNr">125 </span>  <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>target<span class="Delimiter">);</span>
+<span id="L126" class="LineNr">126 </span>  <span class="Conceal">¦</span> <span class="Comment">// log computed target</span>
+<span id="L127" class="LineNr">127 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name == <span class="Constant">&quot;jump&quot;</span><span class="Delimiter">)</span>
+<span id="L128" class="LineNr">128 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;jump &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>target<span class="Delimiter">.</span>value<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;:offset</span><span class="Constant">&quot; &lt;&lt; end();</span>
+<span id="L129" class="LineNr">129 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span>
+<span id="L130" class="LineNr">130 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">' '</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;, &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>target<span class="Delimiter">.</span>value<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;:offset</span><span class="Constant">&quot; &lt;&lt; end();</span>
 <span id="L131" class="LineNr">131 </span>  <span class="Delimiter">}</span>
 <span id="L132" class="LineNr">132 </span><span class="Delimiter">}</span>
 <span id="L133" class="LineNr">133 </span>
@@ -197,9 +198,9 @@ if ('onhashchange' in window) {
 <span id="L136" class="LineNr">136 </span><span class="Normal">int</span> <a href='040brace.cc.html#L136'>matching_brace</a><span class="Delimiter">(</span><span class="Normal">int</span> index<span class="Delimiter">,</span> <span class="Normal">const</span> list&lt;pair&lt;<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>&gt; &gt;&amp; braces<span class="Delimiter">,</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L137" class="LineNr">137 </span>  <span class="Normal">int</span> stacksize = <span class="Constant">0</span><span class="Delimiter">;</span>
 <span id="L138" class="LineNr">138 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span>list&lt;pair&lt;<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>&gt; &gt;::const_iterator p = braces<span class="Delimiter">.</span>begin<span class="Delimiter">();</span>  p != braces<span class="Delimiter">.</span><a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>  ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L139" class="LineNr">139 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">-&gt;</span>second &lt; index<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
-<span id="L140" class="LineNr">140 </span>    stacksize += <span class="Delimiter">(</span>p<span class="Delimiter">-&gt;</span>first ? <span class="Constant">1</span> : -<span class="Constant">1</span><span class="Delimiter">);</span>
-<span id="L141" class="LineNr">141 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>stacksize == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> p<span class="Delimiter">-&gt;</span>second<span class="Delimiter">;</span>
+<span id="L139" class="LineNr">139 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">-&gt;</span>second &lt; index<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+<span id="L140" class="LineNr">140 </span>  <span class="Conceal">¦</span> stacksize += <span class="Delimiter">(</span>p<span class="Delimiter">-&gt;</span>first ? <span class="Constant">1</span> : -<span class="Constant">1</span><span class="Delimiter">);</span>
+<span id="L141" class="LineNr">141 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>stacksize == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> p<span class="Delimiter">-&gt;</span>second<span class="Delimiter">;</span>
 <span id="L142" class="LineNr">142 </span>  <span class="Delimiter">}</span>
 <span id="L143" class="LineNr">143 </span>  <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;unbalanced '{'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L144" class="LineNr">144 </span>  <span class="Identifier">return</span> <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">);</span>  <span class="Comment">// exit current routine</span>
@@ -210,11 +211,11 @@ if ('onhashchange' in window) {
 <span id="L149" class="LineNr">149 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L150" class="LineNr">150 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L151" class="LineNr">151 </span>  <span class="Delimiter">{</span>
-<span id="L152" class="LineNr">152 </span>    <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
-<span id="L153" class="LineNr">153 </span>    loop
+<span id="L152" class="LineNr">152 </span>  <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L153" class="LineNr">153 </span>  <span class="Conceal">¦</span> loop
 <span id="L154" class="LineNr">154 </span>  <span class="Delimiter">}</span>
 <span id="L155" class="LineNr">155 </span>]
-<span id="L156" class="LineNr">156 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L98'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
+<span id="L156" class="LineNr">156 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
 <span id="L157" class="LineNr">157 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L158" class="LineNr">158 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L159" class="LineNr">159 </span><span class="traceContains">+transform: copy ...</span>
@@ -224,10 +225,10 @@ if ('onhashchange' in window) {
 <span id="L163" class="LineNr">163 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
 <span id="L164" class="LineNr">164 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L165" class="LineNr">165 </span>  <span class="Delimiter">{</span>
-<span id="L166" class="LineNr">166 </span>    <span class="Identifier">break</span>
+<span id="L166" class="LineNr">166 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
 <span id="L167" class="LineNr">167 </span>  <span class="Delimiter">}</span>
 <span id="L168" class="LineNr">168 </span>]
-<span id="L169" class="LineNr">169 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L98'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
+<span id="L169" class="LineNr">169 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
 <span id="L170" class="LineNr">170 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L171" class="LineNr">171 </span><span class="traceContains">+transform: jump 0:offset</span>
 <span id="L172" class="LineNr">172 </span>
@@ -235,13 +236,13 @@ if ('onhashchange' in window) {
 <span id="L174" class="LineNr">174 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
 <span id="L175" class="LineNr">175 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L176" class="LineNr">176 </span>  <span class="Delimiter">{</span>
-<span id="L177" class="LineNr">177 </span>    <span class="Identifier">break</span>
+<span id="L177" class="LineNr">177 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
 <span id="L178" class="LineNr">178 </span>  <span class="Delimiter">}</span>
 <span id="L179" class="LineNr">179 </span>  <span class="Delimiter">{</span>
-<span id="L180" class="LineNr">180 </span>    <span class="Identifier">break</span>
+<span id="L180" class="LineNr">180 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
 <span id="L181" class="LineNr">181 </span>  <span class="Delimiter">}</span>
 <span id="L182" class="LineNr">182 </span>]
-<span id="L183" class="LineNr">183 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L98'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
+<span id="L183" class="LineNr">183 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
 <span id="L184" class="LineNr">184 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L185" class="LineNr">185 </span><span class="traceContains">+transform: jump 0:offset</span>
 <span id="L186" class="LineNr">186 </span><span class="traceContains">+transform: jump 0:offset</span>
@@ -251,14 +252,14 @@ if ('onhashchange' in window) {
 <span id="L190" class="LineNr">190 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L191" class="LineNr">191 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L192" class="LineNr">192 </span>  <span class="Delimiter">{</span>
-<span id="L193" class="LineNr">193 </span>    <span class="Identifier">break</span>
-<span id="L194" class="LineNr">194 </span>    <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L193" class="LineNr">193 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
+<span id="L194" class="LineNr">194 </span>  <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L195" class="LineNr">195 </span>  <span class="Delimiter">}</span>
 <span id="L196" class="LineNr">196 </span>  <span class="Delimiter">{</span>
-<span id="L197" class="LineNr">197 </span>    <span class="Identifier">break</span>
+<span id="L197" class="LineNr">197 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
 <span id="L198" class="LineNr">198 </span>  <span class="Delimiter">}</span>
 <span id="L199" class="LineNr">199 </span>]
-<span id="L200" class="LineNr">200 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L98'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
+<span id="L200" class="LineNr">200 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
 <span id="L201" class="LineNr">201 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L202" class="LineNr">202 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L203" class="LineNr">203 </span><span class="traceContains">+transform: jump 1:offset</span>
@@ -270,14 +271,14 @@ if ('onhashchange' in window) {
 <span id="L209" class="LineNr">209 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L210" class="LineNr">210 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L211" class="LineNr">211 </span>  <span class="Delimiter">{</span>
-<span id="L212" class="LineNr">212 </span>    <span class="Identifier">break</span>-<span class="Normal">if</span> <span class="Constant">2</span>:num
-<span id="L213" class="LineNr">213 </span>    <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L212" class="LineNr">212 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>-<span class="Normal">if</span> <span class="Constant">2</span>:num
+<span id="L213" class="LineNr">213 </span>  <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L214" class="LineNr">214 </span>  <span class="Delimiter">}</span>
 <span id="L215" class="LineNr">215 </span>  <span class="Delimiter">{</span>
-<span id="L216" class="LineNr">216 </span>    <span class="Identifier">break</span>
+<span id="L216" class="LineNr">216 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
 <span id="L217" class="LineNr">217 </span>  <span class="Delimiter">}</span>
 <span id="L218" class="LineNr">218 </span>]
-<span id="L219" class="LineNr">219 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L98'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
+<span id="L219" class="LineNr">219 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
 <span id="L220" class="LineNr">220 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L221" class="LineNr">221 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L222" class="LineNr">222 </span><span class="traceContains">+transform: jump-if 2, 1:offset</span>
@@ -288,12 +289,12 @@ if ('onhashchange' in window) {
 <span id="L227" class="LineNr">227 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
 <span id="L228" class="LineNr">228 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L229" class="LineNr">229 </span>  <span class="Delimiter">{</span>
-<span id="L230" class="LineNr">230 </span>    <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
-<span id="L231" class="LineNr">231 </span>    <span class="Identifier">break</span>
-<span id="L232" class="LineNr">232 </span>    <span class="Delimiter">{</span>
-<span id="L233" class="LineNr">233 </span>      <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
-<span id="L234" class="LineNr">234 </span>    <span class="Delimiter">}</span>
-<span id="L235" class="LineNr">235 </span>    <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L230" class="LineNr">230 </span>  <span class="Conceal">¦</span> <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L231" class="LineNr">231 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
+<span id="L232" class="LineNr">232 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
+<span id="L233" class="LineNr">233 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L234" class="LineNr">234 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L235" class="LineNr">235 </span>  <span class="Conceal">¦</span> <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L236" class="LineNr">236 </span>  <span class="Delimiter">}</span>
 <span id="L237" class="LineNr">237 </span>]
 <span id="L238" class="LineNr">238 </span><span class="traceContains">+transform: jump 4:offset</span>
@@ -302,11 +303,11 @@ if ('onhashchange' in window) {
 <span id="L241" class="LineNr">241 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
 <span id="L242" class="LineNr">242 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L243" class="LineNr">243 </span>  <span class="Delimiter">{</span>
-<span id="L244" class="LineNr">244 </span>    <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
-<span id="L245" class="LineNr">245 </span>    <span class="Identifier">break</span>
-<span id="L246" class="LineNr">246 </span>    <span class="Delimiter">{</span>
-<span id="L247" class="LineNr">247 </span>    <span class="Delimiter">}</span>
-<span id="L248" class="LineNr">248 </span>    <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L244" class="LineNr">244 </span>  <span class="Conceal">¦</span> <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L245" class="LineNr">245 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
+<span id="L246" class="LineNr">246 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
+<span id="L247" class="LineNr">247 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L248" class="LineNr">248 </span>  <span class="Conceal">¦</span> <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L249" class="LineNr">249 </span>  <span class="Delimiter">}</span>
 <span id="L250" class="LineNr">250 </span>]
 <span id="L251" class="LineNr">251 </span><span class="traceContains">+transform: jump 3:offset</span>
@@ -315,10 +316,10 @@ if ('onhashchange' in window) {
 <span id="L254" class="LineNr">254 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
 <span id="L255" class="LineNr">255 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L256" class="LineNr">256 </span>  <span class="Delimiter">{</span>
-<span id="L257" class="LineNr">257 </span>    <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
-<span id="L258" class="LineNr">258 </span>    <span class="Identifier">break</span>
-<span id="L259" class="LineNr">259 </span>    <span class="Delimiter">{</span>
-<span id="L260" class="LineNr">260 </span>    <span class="Delimiter">}</span>
+<span id="L257" class="LineNr">257 </span>  <span class="Conceal">¦</span> <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L258" class="LineNr">258 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
+<span id="L259" class="LineNr">259 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
+<span id="L260" class="LineNr">260 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L261" class="LineNr">261 </span>  <span class="Delimiter">}</span>
 <span id="L262" class="LineNr">262 </span>]
 <span id="L263" class="LineNr">263 </span><span class="traceContains">+transform: jump 2:offset</span>
@@ -328,7 +329,7 @@ if ('onhashchange' in window) {
 <span id="L267" class="LineNr">267 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
 <span id="L268" class="LineNr">268 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L269" class="LineNr">269 </span>  <span class="Delimiter">{</span>
-<span id="L270" class="LineNr">270 </span>    <span class="Identifier">break</span> <span class="Constant">+foo:offset</span>
+<span id="L270" class="LineNr">270 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span> <span class="Constant">+foo:offset</span>
 <span id="L271" class="LineNr">271 </span>  <span class="Delimiter">}</span>
 <span id="L272" class="LineNr">272 </span>]
 <span id="L273" class="LineNr">273 </span><span class="traceContains">+transform: jump +foo:offset</span>
@@ -338,11 +339,11 @@ if ('onhashchange' in window) {
 <span id="L277" class="LineNr">277 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L278" class="LineNr">278 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L279" class="LineNr">279 </span>  <span class="Delimiter">{</span>
-<span id="L280" class="LineNr">280 </span>    <span class="Identifier">break</span>-unless <span class="Constant">2</span>:num
-<span id="L281" class="LineNr">281 </span>    <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L280" class="LineNr">280 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>-unless <span class="Constant">2</span>:num
+<span id="L281" class="LineNr">281 </span>  <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L282" class="LineNr">282 </span>  <span class="Delimiter">}</span>
 <span id="L283" class="LineNr">283 </span>]
-<span id="L284" class="LineNr">284 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L98'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
+<span id="L284" class="LineNr">284 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
 <span id="L285" class="LineNr">285 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L286" class="LineNr">286 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L287" class="LineNr">287 </span><span class="traceContains">+transform: jump-unless 2, 1:offset</span>
@@ -353,11 +354,11 @@ if ('onhashchange' in window) {
 <span id="L292" class="LineNr">292 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L293" class="LineNr">293 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L294" class="LineNr">294 </span>  <span class="Delimiter">{</span>
-<span id="L295" class="LineNr">295 </span>    loop-unless <span class="Constant">2</span>:num
-<span id="L296" class="LineNr">296 </span>    <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L295" class="LineNr">295 </span>  <span class="Conceal">¦</span> loop-unless <span class="Constant">2</span>:num
+<span id="L296" class="LineNr">296 </span>  <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L297" class="LineNr">297 </span>  <span class="Delimiter">}</span>
 <span id="L298" class="LineNr">298 </span>]
-<span id="L299" class="LineNr">299 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L98'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
+<span id="L299" class="LineNr">299 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
 <span id="L300" class="LineNr">300 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L301" class="LineNr">301 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L302" class="LineNr">302 </span><span class="traceContains">+transform: jump-unless 2, -1:offset</span>
@@ -367,15 +368,15 @@ if ('onhashchange' in window) {
 <span id="L306" class="LineNr">306 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
 <span id="L307" class="LineNr">307 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L308" class="LineNr">308 </span>  <span class="Delimiter">{</span>
-<span id="L309" class="LineNr">309 </span>    <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
-<span id="L310" class="LineNr">310 </span>    <span class="Delimiter">{</span>
-<span id="L311" class="LineNr">311 </span>      <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
-<span id="L312" class="LineNr">312 </span>    <span class="Delimiter">}</span>
-<span id="L313" class="LineNr">313 </span>    loop-<span class="Normal">if</span> <span class="Constant">4</span>:<span class="Normal">bool</span>
-<span id="L314" class="LineNr">314 </span>    <span class="Constant">5</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L309" class="LineNr">309 </span>  <span class="Conceal">¦</span> <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L310" class="LineNr">310 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
+<span id="L311" class="LineNr">311 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
+<span id="L312" class="LineNr">312 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
+<span id="L313" class="LineNr">313 </span>  <span class="Conceal">¦</span> loop-<span class="Normal">if</span> <span class="Constant">4</span>:<span class="Normal">bool</span>
+<span id="L314" class="LineNr">314 </span>  <span class="Conceal">¦</span> <span class="Constant">5</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L315" class="LineNr">315 </span>  <span class="Delimiter">}</span>
 <span id="L316" class="LineNr">316 </span>]
-<span id="L317" class="LineNr">317 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L98'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
+<span id="L317" class="LineNr">317 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
 <span id="L318" class="LineNr">318 </span><span class="traceContains">+transform: jump-if 4, -5:offset</span>
 <span id="L319" class="LineNr">319 </span>
 <span id="L320" class="LineNr">320 </span><span class="Delimiter">:(scenario loop_label)</span>
@@ -384,7 +385,7 @@ if ('onhashchange' in window) {
 <span id="L323" class="LineNr">323 </span>  +foo
 <span id="L324" class="LineNr">324 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
 <span id="L325" class="LineNr">325 </span>]
-<span id="L326" class="LineNr">326 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L98'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
+<span id="L326" class="LineNr">326 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
 <span id="L327" class="LineNr">327 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L328" class="LineNr">328 </span><span class="traceContains">+transform: copy ...</span>
 <span id="L329" class="LineNr">329 </span>
@@ -395,12 +396,12 @@ if ('onhashchange' in window) {
 <span id="L334" class="LineNr">334 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">5</span>
 <span id="L335" class="LineNr">335 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>
 <span id="L336" class="LineNr">336 </span>  <span class="Delimiter">{</span>
-<span id="L337" class="LineNr">337 </span>    <span class="Constant">3</span>:<span class="Normal">bool</span><span class="Special"> &lt;- </span>equal <span class="Constant">1</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span>
-<span id="L338" class="LineNr">338 </span>    <span class="Identifier">break</span>-<span class="Normal">if</span> <span class="Constant">3</span>:<span class="Normal">bool</span>
+<span id="L337" class="LineNr">337 </span>  <span class="Conceal">¦</span> <span class="Constant">3</span>:<span class="Normal">bool</span><span class="Special"> &lt;- </span>equal <span class="Constant">1</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span>
+<span id="L338" class="LineNr">338 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>-<span class="Normal">if</span> <span class="Constant">3</span>:<span class="Normal">bool</span>
 <span id="L339" class="LineNr">339 </span><span class="Comment">#    $print 1:num</span>
-<span id="L340" class="LineNr">340 </span>    <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>multiply <span class="Constant">2</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span>:num
-<span id="L341" class="LineNr">341 </span>    <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>subtract <span class="Constant">1</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span>
-<span id="L342" class="LineNr">342 </span>    loop
+<span id="L340" class="LineNr">340 </span>  <span class="Conceal">¦</span> <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>multiply <span class="Constant">2</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span>:num
+<span id="L341" class="LineNr">341 </span>  <span class="Conceal">¦</span> <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>subtract <span class="Constant">1</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span>
+<span id="L342" class="LineNr">342 </span>  <span class="Conceal">¦</span> loop
 <span id="L343" class="LineNr">343 </span>  <span class="Delimiter">}</span>
 <span id="L344" class="LineNr">344 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">2</span>:num  <span class="Comment"># trigger a read</span>
 <span id="L345" class="LineNr">345 </span>]
@@ -417,7 +418,7 @@ if ('onhashchange' in window) {
 <span id="L356" class="LineNr">356 </span><span class="Special">% Hide_errors = true;</span>
 <span id="L357" class="LineNr">357 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
 <span id="L358" class="LineNr">358 </span>  <span class="Delimiter">{</span>
-<span id="L359" class="LineNr">359 </span>    <span class="Identifier">break</span>-<span class="Normal">if</span>
+<span id="L359" class="LineNr">359 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>-<span class="Normal">if</span>
 <span id="L360" class="LineNr">360 </span>  <span class="Delimiter">}</span>
 <span id="L361" class="LineNr">361 </span>]
 <span id="L362" class="LineNr">362 </span><span class="traceContains">+error: 'break-if' expects 1 or 2 ingredients, but got none</span>
@@ -454,11 +455,11 @@ if ('onhashchange' in window) {
 <span id="L393" class="LineNr">393 </span><span class="Comment">//   ```</span>
 <span id="L394" class="LineNr">394 </span><span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">&quot;return-if&quot;</span> || curr<span class="Delimiter">.</span>name == <span class="Constant">&quot;reply-if&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L395" class="LineNr">395 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L396" class="LineNr">396 </span>    <a href='040brace.cc.html#L421'>emit_return_block</a><span class="Delimiter">(</span>result<span class="Delimiter">,</span> <span class="Constant">&quot;break-unless&quot;</span><span class="Delimiter">,</span> curr<span class="Delimiter">);</span>
-<span id="L397" class="LineNr">397 </span>    curr<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
+<span id="L396" class="LineNr">396 </span>  <span class="Conceal">¦</span> <a href='040brace.cc.html#L421'>emit_return_block</a><span class="Delimiter">(</span>result<span class="Delimiter">,</span> <span class="Constant">&quot;break-unless&quot;</span><span class="Delimiter">,</span> curr<span class="Delimiter">);</span>
+<span id="L397" class="LineNr">397 </span>  <span class="Conceal">¦</span> curr<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
 <span id="L398" class="LineNr">398 </span>  <span class="Delimiter">}</span>
 <span id="L399" class="LineNr">399 </span>  <span class="Normal">else</span> <span class="Delimiter">{</span>
-<span id="L400" class="LineNr">400 </span>    <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; curr<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' never yields any products</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L400" class="LineNr">400 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; curr<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' never yields any products</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L401" class="LineNr">401 </span>  <span class="Delimiter">}</span>
 <span id="L402" class="LineNr">402 </span><span class="Delimiter">}</span>
 <span id="L403" class="LineNr">403 </span><span class="Comment">// rewrite `return-unless a, b, c, ...` to</span>
@@ -470,11 +471,11 @@ if ('onhashchange' in window) {
 <span id="L409" class="LineNr">409 </span><span class="Comment">//   ```</span>
 <span id="L410" class="LineNr">410 </span><span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">&quot;return-unless&quot;</span> || curr<span class="Delimiter">.</span>name == <span class="Constant">&quot;reply-unless&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L411" class="LineNr">411 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-<span id="L412" class="LineNr">412 </span>    <a href='040brace.cc.html#L421'>emit_return_block</a><span class="Delimiter">(</span>result<span class="Delimiter">,</span> <span class="Constant">&quot;break-if&quot;</span><span class="Delimiter">,</span> curr<span class="Delimiter">);</span>
-<span id="L413" class="LineNr">413 </span>    curr<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
+<span id="L412" class="LineNr">412 </span>  <span class="Conceal">¦</span> <a href='040brace.cc.html#L421'>emit_return_block</a><span class="Delimiter">(</span>result<span class="Delimiter">,</span> <span class="Constant">&quot;break-if&quot;</span><span class="Delimiter">,</span> curr<span class="Delimiter">);</span>
+<span id="L413" class="LineNr">413 </span>  <span class="Conceal">¦</span> curr<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
 <span id="L414" class="LineNr">414 </span>  <span class="Delimiter">}</span>
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-<span id="L416" class="LineNr">416 </span>    <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; curr<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' never yields any products</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L416" class="LineNr">416 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; curr<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' never yields any products</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
 <span id="L417" class="LineNr">417 </span>  <span class="Delimiter">}</span>
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 <span id="L419" class="LineNr">419 </span>