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<a href='https://github.com/akkartik/mu/blob/master/038new_text.cc'>https://github.com/akkartik/mu/blob/master/038new_text.cc</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr">  1 </span><span class="Comment">//: Extend 'new' to handle a unicode string literal argument or 'text'.</span>
<span id="L2" class="LineNr">  2 </span>
<span id="L3" class="LineNr">  3 </span><span class="Comment">//: A Mu text is an address to an array of characters.</span>
<span id="L4" class="LineNr">  4 </span><span class="Delimiter">:(before &quot;End Mu Types Initialization&quot;)</span>
<span id="L5" class="LineNr">  5 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Type_abbreviations</span><span class="Delimiter">,</span> <span class="Constant">&quot;text&quot;</span><span class="Delimiter">,</span> <a href='019type_abbreviations.cc.html#L58'>new_type_tree</a><span class="Delimiter">(</span><span class="Constant">&quot;&amp;:@:character&quot;</span><span class="Delimiter">));</span>
<span id="L6" class="LineNr">  6 </span>
<span id="L7" class="LineNr">  7 </span><span class="Delimiter">:(scenario new_string)</span>
<span id="L8" class="LineNr">  8 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L9" class="LineNr">  9 </span>  <span class="Constant">10</span>:text<span class="Special"> &lt;- </span><span class="Normal">new</span> [abc def]
<span id="L10" class="LineNr"> 10 </span>  <span class="Constant">20</span>:<span class="Normal">char</span><span class="Special"> &lt;- </span>index *<span class="Constant">10</span>:text<span class="Delimiter">,</span> <span class="Constant">5</span>
<span id="L11" class="LineNr"> 11 </span>]
<span id="L12" class="LineNr"> 12 </span><span class="Comment"># number code for 'e'</span>
<span id="L13" class="LineNr"> 13 </span><span class="traceContains">+mem: storing 101 in location 20</span>
<span id="L14" class="LineNr"> 14 </span>
<span id="L15" class="LineNr"> 15 </span><span class="Delimiter">:(scenario new_string_handles_unicode)</span>
<span id="L16" class="LineNr"> 16 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L17" class="LineNr"> 17 </span>  <span class="Constant">10</span>:text<span class="Special"> &lt;- </span><span class="Normal">new</span> [a«c]
<span id="L18" class="LineNr"> 18 </span>  <span class="Constant">20</span>:num<span class="Special"> &lt;- </span>length *<span class="Constant">10</span>:text
<span id="L19" class="LineNr"> 19 </span>  <span class="Constant">21</span>:<span class="Normal">char</span><span class="Special"> &lt;- </span>index *<span class="Constant">10</span>:text<span class="Delimiter">,</span> <span class="Constant">1</span>
<span id="L20" class="LineNr"> 20 </span>]
<span id="L21" class="LineNr"> 21 </span><span class="traceContains">+mem: storing 3 in location 20</span>
<span id="L22" class="LineNr"> 22 </span><span class="Comment"># unicode for '«'</span>
<span id="L23" class="LineNr"> 23 </span><span class="traceContains">+mem: storing 171 in location 21</span>
<span id="L24" class="LineNr"> 24 </span>
<span id="L25" class="LineNr"> 25 </span><span class="Delimiter">:(before &quot;End NEW Check Special-cases&quot;)</span>
<span id="L26" class="LineNr"> 26 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='014literal_string.cc.html#L126'>is_literal_text</a><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="Identifier">break</span><span class="Delimiter">;</span>
<span id="L27" class="LineNr"> 27 </span><span class="Delimiter">:(before &quot;Convert 'new' To 'allocate'&quot;)</span>
<span id="L28" class="LineNr"> 28 </span><span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name == <span class="Constant">&quot;new&quot;</span> &amp;&amp; !inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">()</span> &amp;&amp; <a href='014literal_string.cc.html#L126'>is_literal_text</a><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="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L29" class="LineNr"> 29 </span><span class="Delimiter">:(after &quot;case NEW&quot; following &quot;Primitive Recipe Implementations&quot;)</span>
<span id="L30" class="LineNr"> 30 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='014literal_string.cc.html#L126'>is_literal_text</a><span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><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="L31" class="LineNr"> 31 </span>    products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L32" class="LineNr"> 32 </span>    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">alloc id</span><span class="Comment">*/</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L33" class="LineNr"> 33 </span>    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><a href='038new_text.cc.html#L39'>new_mu_text</a><span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">));</span>
<span id="L34" class="LineNr"> 34 </span>    <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">&quot;mem&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;new string alloc: &quot;</span> &lt;&lt; products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L35" class="LineNr"> 35 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L36" class="LineNr"> 36 </span>  <span class="Delimiter">}</span>
<span id="L37" class="LineNr"> 37 </span>
<span id="L38" class="LineNr"> 38 </span><span class="Delimiter">:(code)</span>
<span id="L39" class="LineNr"> 39 </span><span class="Normal">int</span> <a href='038new_text.cc.html#L39'>new_mu_text</a><span class="Delimiter">(</span><span class="Normal">const</span> string&amp; contents<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L40" class="LineNr"> 40 </span>  <span class="Comment">// allocate an array just large enough for it</span>
<span id="L41" class="LineNr"> 41 </span>  <span class="Normal">int</span> string_length = <a href='038new_text.cc.html#L130'>unicode_length</a><span class="Delimiter">(</span>contents<span class="Delimiter">);</span>
<span id="L42" class="LineNr"> 42 </span><span class="CommentedCode">//?   Total_alloc += string_length+1;</span>
<span id="L43" class="LineNr"> 43 </span><span class="CommentedCode">//?   ++Num_alloc;</span>
<span id="L44" class="LineNr"> 44 </span>  <span class="Normal">int</span> result = allocate<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">array length</span><span class="Comment">*/</span><span class="Constant">1</span> + string_length<span class="Delimiter">);</span>
<span id="L45" class="LineNr"> 45 </span>  <span class="Normal">int</span> curr_address = result<span class="Delimiter">;</span>
<span id="L46" class="LineNr"> 46 </span>  ++curr_address<span class="Delimiter">;</span>  <span class="Comment">// skip alloc id</span>
<span id="L47" class="LineNr"> 47 </span>  <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">&quot;mem&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;storing string length &quot;</span> &lt;&lt; string_length &lt;&lt; <span class="Constant">&quot; in location &quot;</span> &lt;&lt; curr_address &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L48" class="LineNr"> 48 </span>  <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> curr_address<span class="Delimiter">,</span> string_length<span class="Delimiter">);</span>
<span id="L49" class="LineNr"> 49 </span>  ++curr_address<span class="Delimiter">;</span>  <span class="Comment">// skip length</span>
<span id="L50" class="LineNr"> 50 </span>  <span class="Normal">int</span> curr = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L51" class="LineNr"> 51 </span>  <span class="Normal">const</span> <span class="Normal">char</span>* raw_contents = contents<span class="Delimiter">.</span>c_str<span class="Delimiter">();</span>
<span id="L52" class="LineNr"> 52 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; string_length<span class="Delimiter">;</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L53" class="LineNr"> 53 </span>    <span class="Normal">uint32_t</span> curr_character<span class="Delimiter">;</span>
<span id="L54" class="LineNr"> 54 </span>    assert<span class="Delimiter">(</span>curr &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>contents<span class="Delimiter">));</span>
<span id="L55" class="LineNr"> 55 </span>    tb_utf8_char_to_unicode<span class="Delimiter">(</span>&amp;curr_character<span class="Delimiter">,</span> &amp;raw_contents[curr]<span class="Delimiter">);</span>
<span id="L56" class="LineNr"> 56 </span>    <a href='003trace.cc.html#L189'>trace</a><span class="Delimiter">(</span><span class="Constant">&quot;mem&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;storing string character &quot;</span> &lt;&lt; curr_character &lt;&lt; <span class="Constant">&quot; in location &quot;</span> &lt;&lt; curr_address &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L57" class="LineNr"> 57 </span>    <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> curr_address<span class="Delimiter">,</span> curr_character<span class="Delimiter">);</span>
<span id="L58" class="LineNr"> 58 </span>    curr += tb_utf8_char_length<span class="Delimiter">(</span>raw_contents[curr]<span class="Delimiter">);</span>
<span id="L59" class="LineNr"> 59 </span>    ++curr_address<span class="Delimiter">;</span>
<span id="L60" class="LineNr"> 60 </span>  <span class="Delimiter">}</span>
<span id="L61" class="LineNr"> 61 </span>  <span class="Comment">// Mu strings are not null-terminated in memory.</span>
<span id="L62" class="LineNr"> 62 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L63" class="LineNr"> 63 </span><span class="Delimiter">}</span>
<span id="L64" class="LineNr"> 64 </span>
<span id="L65" class="LineNr"> 65 </span><span class="Comment">//: a new kind of typo</span>
<span id="L66" class="LineNr"> 66 </span>
<span id="L67" class="LineNr"> 67 </span><span class="Delimiter">:(scenario literal_text_without_instruction)</span>
<span id="L68" class="LineNr"> 68 </span><span class="Special">% Hide_errors = true;</span>
<span id="L69" class="LineNr"> 69 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L70" class="LineNr"> 70 </span>  [abc]
<span id="L71" class="LineNr"> 71 </span>]
<span id="L72" class="LineNr"> 72 </span><span class="traceContains">+error: <a href='000organization.cc.html#L113'>main</a>: <a href='010vm.cc.html#L33'>instruction</a> '[abc]' has no <a href='010vm.cc.html#L19'>recipe</a> in '[abc]'</span>
<span id="L73" class="LineNr"> 73 </span>
<span id="L74" class="LineNr"> 74 </span><span class="Comment">//: stash recognizes texts</span>
<span id="L75" class="LineNr"> 75 </span>
<span id="L76" class="LineNr"> 76 </span><span class="Delimiter">:(scenario stash_text)</span>
<span id="L77" class="LineNr"> 77 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L78" class="LineNr"> 78 </span>  <span class="Constant">1</span>:text<span class="Special"> &lt;- </span><span class="Normal">new</span> [abc]
<span id="L79" class="LineNr"> 79 </span>  stash [foo:]<span class="Delimiter">,</span> <span class="Constant">1</span>:text
<span id="L80" class="LineNr"> 80 </span>]
<span id="L81" class="LineNr"> 81 </span><span class="traceContains">+app: foo: abc</span>
<span id="L82" class="LineNr"> 82 </span>
<span id="L83" class="LineNr"> 83 </span><span class="Delimiter">:(before &quot;End inspect Special-cases(r, data)&quot;)</span>
<span id="L84" class="LineNr"> 84 </span><span class="Normal">if</span> <span class="Delimiter">(</span><a href='027call_ingredient.cc.html#L179'>is_mu_text</a><span class="Delimiter">(</span>r<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L85" class="LineNr"> 85 </span>  <span class="Identifier">return</span> <a href='038new_text.cc.html#L142'>read_mu_text</a><span class="Delimiter">(</span>data<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">skip alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">));</span>
<span id="L86" class="LineNr"> 86 </span><span class="Delimiter">}</span>
<span id="L87" class="LineNr"> 87 </span>
<span id="L88" class="LineNr"> 88 </span><span class="Delimiter">:(before &quot;End $print Special-cases&quot;)</span>
<span id="L89" class="LineNr"> 89 </span><span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='027call_ingredient.cc.html#L179'>is_mu_text</a><span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L90" class="LineNr"> 90 </span>  cout &lt;&lt; <a href='038new_text.cc.html#L142'>read_mu_text</a><span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">skip alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">));</span>
<span id="L91" class="LineNr"> 91 </span><span class="Delimiter">}</span>
<span id="L92" class="LineNr"> 92 </span>
<span id="L93" class="LineNr"> 93 </span><span class="Delimiter">:(scenario unicode_text)</span>
<span id="L94" class="LineNr"> 94 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L95" class="LineNr"> 95 </span>  <span class="Constant">1</span>:text<span class="Special"> &lt;- </span><span class="Normal">new</span> [♠]
<span id="L96" class="LineNr"> 96 </span>  stash [foo:]<span class="Delimiter">,</span> <span class="Constant">1</span>:text
<span id="L97" class="LineNr"> 97 </span>]
<span id="L98" class="LineNr"> 98 </span><span class="traceContains">+app: foo: ♠</span>
<span id="L99" class="LineNr"> 99 </span>
<span id="L100" class="LineNr">100 </span><span class="Delimiter">:(scenario stash_space_after_text)</span>
<span id="L101" class="LineNr">101 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L102" class="LineNr">102 </span>  <span class="Constant">1</span>:text<span class="Special"> &lt;- </span><span class="Normal">new</span> [abc]
<span id="L103" class="LineNr">103 </span>  stash <span class="Constant">1</span>:text<span class="Delimiter">,</span> [foo]
<span id="L104" class="LineNr">104 </span>]
<span id="L105" class="LineNr">105 </span><span class="traceContains">+app: abc foo</span>
<span id="L106" class="LineNr">106 </span>
<span id="L107" class="LineNr">107 </span><span class="Delimiter">:(scenario stash_text_as_array)</span>
<span id="L108" class="LineNr">108 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L109" class="LineNr">109 </span>  <span class="Constant">1</span>:text<span class="Special"> &lt;- </span><span class="Normal">new</span> [abc]
<span id="L110" class="LineNr">110 </span>  stash *<span class="Constant">1</span>:text
<span id="L111" class="LineNr">111 </span>]
<span id="L112" class="LineNr">112 </span><span class="traceContains">+app: 3 97 98 99</span>
<span id="L113" class="LineNr">113 </span>
<span id="L114" class="LineNr">114 </span><span class="Comment">//: fixes way more than just stash</span>
<span id="L115" class="LineNr">115 </span><span class="Delimiter">:(before &quot;End Preprocess is_mu_text(reagent x)&quot;)</span>
<span id="L116" class="LineNr">116 </span><span class="Normal">if</span> <span class="Delimiter">(</span>!canonize_type<span class="Delimiter">(</span>x<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span>
<span id="L117" class="LineNr">117 </span>
<span id="L118" class="LineNr">118 </span><span class="Comment">//: Allocate more to routine when initializing a literal text</span>
<span id="L119" class="LineNr">119 </span><span class="Delimiter">:(scenario new_text_overflow)</span>
<span id="L120" class="LineNr">120 </span><span class="Special">% Initial_memory_per_routine = 3;</span>
<span id="L121" class="LineNr">121 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L122" class="LineNr">122 </span>  <span class="Constant">10</span>:&amp;:num/<span class="Special">raw &lt;- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L123" class="LineNr">123 </span>  <span class="Constant">20</span>:text/<span class="Special">raw &lt;- </span><span class="Normal">new</span> [a]  <span class="Comment"># not enough room in initial page, if you take the array length into account</span>
<span id="L124" class="LineNr">124 </span>]
<span id="L125" class="LineNr">125 </span><span class="traceContains">+new: routine allocated memory from 1000 to 1003</span>
<span id="L126" class="LineNr">126 </span><span class="traceContains">+new: routine allocated memory from 1003 to 1006</span>
<span id="L127" class="LineNr">127 </span>
<span id="L128" class="LineNr">128 </span><span class="Comment">//: helpers</span>
<span id="L129" class="LineNr">129 </span><span class="Delimiter">:(code)</span>
<span id="L130" class="LineNr">130 </span><span class="Normal">int</span> <a href='038new_text.cc.html#L130'>unicode_length</a><span class="Delimiter">(</span><span class="Normal">const</span> string&amp; s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L131" class="LineNr">131 </span>  <span class="Normal">const</span> <span class="Normal">char</span>* in = s<span class="Delimiter">.</span>c_str<span class="Delimiter">();</span>
<span id="L132" class="LineNr">132 </span>  <span class="Normal">int</span> result = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L133" class="LineNr">133 </span>  <span class="Normal">int</span> curr = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L134" class="LineNr">134 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span>curr &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>s<span class="Delimiter">))</span> <span class="Delimiter">{</span>  <span class="Comment">// carefully bounds-check on the string</span>
<span id="L135" class="LineNr">135 </span>    <span class="Comment">// before accessing its raw pointer</span>
<span id="L136" class="LineNr">136 </span>    ++result<span class="Delimiter">;</span>
<span id="L137" class="LineNr">137 </span>    curr += tb_utf8_char_length<span class="Delimiter">(</span>in[curr]<span class="Delimiter">);</span>
<span id="L138" class="LineNr">138 </span>  <span class="Delimiter">}</span>
<span id="L139" class="LineNr">139 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L140" class="LineNr">140 </span><span class="Delimiter">}</span>
<span id="L141" class="LineNr">141 </span>
<span id="L142" class="LineNr">142 </span>string <a href='038new_text.cc.html#L142'>read_mu_text</a><span class="Delimiter">(</span><span class="Normal">int</span> <a href='043space.cc.html#L101'>address</a><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L143" class="LineNr">143 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='043space.cc.html#L101'>address</a> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">;</span>
<span id="L144" class="LineNr">144 </span>  <span class="Normal">int</span> length = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> address+<span class="Comment">/*</span><span class="Comment">alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L145" class="LineNr">145 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>length == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">;</span>
<span id="L146" class="LineNr">146 </span>  <span class="Identifier">return</span> <a href='038new_text.cc.html#L149'>read_mu_characters</a><span class="Delimiter">(</span>address+<span class="Comment">/*</span><span class="Comment">alloc id</span><span class="Comment">*/</span><span class="Constant">1</span>+<span class="Comment">/*</span><span class="Comment">length</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">,</span> length<span class="Delimiter">);</span>
<span id="L147" class="LineNr">147 </span><span class="Delimiter">}</span>
<span id="L148" class="LineNr">148 </span>
<span id="L149" class="LineNr">149 </span>string <a href='038new_text.cc.html#L149'>read_mu_characters</a><span class="Delimiter">(</span><span class="Normal">int</span> start<span class="Delimiter">,</span> <span class="Normal">int</span> length<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L150" class="LineNr">150 </span>  ostringstream tmp<span class="Delimiter">;</span>
<span id="L151" class="LineNr">151 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> curr = start<span class="Delimiter">;</span>  curr &lt; start+length<span class="Delimiter">;</span>  ++curr<span class="Delimiter">)</span>
<span id="L152" class="LineNr">152 </span>    tmp &lt;&lt; to_unicode<span class="Delimiter">(</span><span class="Normal">static_cast</span>&lt;<span class="Normal">uint32_t</span>&gt;<span class="Delimiter">(</span><a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> curr<span class="Delimiter">)));</span>
<span id="L153" class="LineNr">153 </span>  <span class="Identifier">return</span> tmp<span class="Delimiter">.</span>str<span class="Delimiter">();</span>
<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="SalientComment">//:: some miscellaneous helpers now that we have text</span>
<span id="L157" class="LineNr">157 </span>
<span id="L158" class="LineNr">158 </span><span class="Comment">//: assert: perform sanity checks at runtime</span>
<span id="L159" class="LineNr">159 </span>
<span id="L160" class="LineNr">160 </span><span class="Delimiter">:(scenario assert_literal)</span>
<span id="L161" class="LineNr">161 </span><span class="Special">% Hide_errors = true;  // '%' lines insert arbitrary C code into tests before calling 'run' with the lines below. Must be immediately after :(scenario) line.</span>
<span id="L162" class="LineNr">162 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L163" class="LineNr">163 </span>  assert <span class="Constant">0</span><span class="Delimiter">,</span> [<span class="Normal">this</span> is an assert in <span class="Special">Mu</span>]
<span id="L164" class="LineNr">164 </span>]
<span id="L165" class="LineNr">165 </span><span class="traceContains">+error: this is an assert in Mu</span>
<span id="L166" class="LineNr">166 </span>
<span id="L167" class="LineNr">167 </span><span class="Delimiter">:(scenario assert)</span>
<span id="L168" class="LineNr">168 </span><span class="Special">% Hide_errors = true;  // '%' lines insert arbitrary C code into tests before calling 'run' with the lines below. Must be immediately after :(scenario) line.</span>
<span id="L169" class="LineNr">169 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L170" class="LineNr">170 </span>  <span class="Constant">1</span>:text<span class="Special"> &lt;- </span><span class="Normal">new</span> [<span class="Normal">this</span> is an assert in <span class="Special">Mu</span>]
<span id="L171" class="LineNr">171 </span>  assert <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1</span>:text
<span id="L172" class="LineNr">172 </span>]
<span id="L173" class="LineNr">173 </span><span class="traceContains">+error: this is an assert in Mu</span>
<span id="L174" class="LineNr">174 </span>
<span id="L175" class="LineNr">175 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L176" class="LineNr">176 </span>ASSERT<span class="Delimiter">,</span>
<span id="L177" class="LineNr">177 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L178" class="LineNr">178 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;assert&quot;</span><span class="Delimiter">,</span> ASSERT<span class="Delimiter">);</span>
<span id="L179" class="LineNr">179 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L180" class="LineNr">180 </span><span class="Normal">case</span> ASSERT: <span class="Delimiter">{</span>
<span id="L181" class="LineNr">181 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L182" class="LineNr">182 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'assert' takes exactly two ingredients rather than '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L183" class="LineNr">183 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L184" class="LineNr">184 </span>  <span class="Delimiter">}</span>
<span id="L185" class="LineNr">185 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_address<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> &amp;&amp; !is_mu_scalar<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="L186" class="LineNr">186 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'assert' requires a scalar or <a href='043space.cc.html#L101'>address</a> for its first ingredient, but got '&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>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L187" class="LineNr">187 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L188" class="LineNr">188 </span>  <span class="Delimiter">}</span>
<span id="L189" class="LineNr">189 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_literal_text<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> &amp;&amp; !is_mu_text<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="L190" class="LineNr">190 </span>    <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'assert' requires a text as its second ingredient, but got '&quot;</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>original_string &lt;&lt; <span class="Constant">&quot;'\n&quot;</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L191" class="LineNr">191 </span>    <span class="Identifier">break</span><span class="Delimiter">;</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 class="Delimiter">;</span>
<span id="L194" class="LineNr">194 </span><span class="Delimiter">}</span>
<span id="L195" class="LineNr">195 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L196" class="LineNr">196 </span><span class="Normal">case</span> ASSERT: <span class="Delimiter">{</span>
<span id="L197" class="LineNr">197 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!scalar_ingredient<span class="Delimiter">(</span>ingredients<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L198" class="LineNr">198 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span><a href='014literal_string.cc.html#L126'>is_literal_text</a><span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span>
<span id="L199" class="LineNr">199 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='026call.cc.html#L89'>current_instruction</a><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="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L200" class="LineNr">200 </span>    <span class="Normal">else</span>
<span id="L201" class="LineNr">201 </span>      <a href='003trace.cc.html#L196'>raise</a> &lt;&lt; <a href='038new_text.cc.html#L142'>read_mu_text</a><span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">skip alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">))</span> &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L202" class="LineNr">202 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>!<span class="Special">Hide_errors</span><span class="Delimiter">)</span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L203" class="LineNr">203 </span>  <span class="Delimiter">}</span>
<span id="L204" class="LineNr">204 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L205" class="LineNr">205 </span><span class="Delimiter">}</span>
<span id="L206" class="LineNr">206 </span>
<span id="L207" class="LineNr">207 </span><span class="Comment">//: 'cheating' by using the host system</span>
<span id="L208" class="LineNr">208 </span>
<span id="L209" class="LineNr">209 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L210" class="LineNr">210 </span>_READ<span class="Delimiter">,</span>
<span id="L211" class="LineNr">211 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L212" class="LineNr">212 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">&quot;$read&quot;</span><span class="Delimiter">,</span> _READ<span class="Delimiter">);</span>
<span id="L213" class="LineNr">213 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L214" class="LineNr">214 </span><span class="Normal">case</span> _READ: <span class="Delimiter">{</span>
<span id="L215" class="LineNr">215 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L216" class="LineNr">216 </span><span class="Delimiter">}</span>
<span id="L217" class="LineNr">217 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L218" class="LineNr">218 </span><span class="Normal">case</span> _READ: <span class="Delimiter">{</span>
<span id="L219" class="LineNr">219 </span>  <a href='038new_text.cc.html#L229'>skip_whitespace</a><span class="Delimiter">(</span>cin<span class="Delimiter">);</span>
<span id="L220" class="LineNr">220 </span>  string result<span class="Delimiter">;</span>
<span id="L221" class="LineNr">221 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L239'>has_data</a><span class="Delimiter">(</span>cin<span class="Delimiter">))</span>
<span id="L222" class="LineNr">222 </span>    cin &gt;&gt; result<span class="Delimiter">;</span>
<span id="L223" class="LineNr">223 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L224" class="LineNr">224 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><a href='038new_text.cc.html#L39'>new_mu_text</a><span class="Delimiter">(</span>result<span class="Delimiter">));</span>
<span id="L225" class="LineNr">225 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L226" class="LineNr">226 </span><span class="Delimiter">}</span>
<span id="L227" class="LineNr">227 </span>
<span id="L228" class="LineNr">228 </span><span class="Delimiter">:(code)</span>
<span id="L229" class="LineNr">229 </span><span class="Normal">void</span> <a href='038new_text.cc.html#L229'>skip_whitespace</a><span class="Delimiter">(</span>istream&amp; in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L230" class="LineNr">230 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L231" class="LineNr">231 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L232" class="LineNr">232 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>isspace<span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()))</span> in<span class="Delimiter">.</span>get<span class="Delimiter">();</span>
<span id="L233" class="LineNr">233 </span>    <span class="Normal">else</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L234" class="LineNr">234 </span>  <span class="Delimiter">}</span>
<span id="L235" class="LineNr">235 </span><span class="Delimiter">}</span>
</pre>
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