about summary refs log tree commit diff stats
path: root/html/087file.cc.html
diff options
context:
space:
mode:
authorKartik K. Agaram <vc@akkartik.com>2016-12-26 01:17:01 -0800
committerKartik K. Agaram <vc@akkartik.com>2016-12-26 01:26:16 -0800
commite5c11a5137d538b7713dd8708ca767c208824c06 (patch)
tree82976fd80e5d8048840701c351827730b29f89f6 /html/087file.cc.html
parent63e1c465e46502bd7c391e31db73e7e5ae19adfd (diff)
downloadmu-e5c11a5137d538b7713dd8708ca767c208824c06.tar.gz
3709 - line numbers in html
Each line number also gets an anchor name, but I'm not hyperlinking them for now
because I don't want to encourage bookmarking these links just yet. They aren't
permalinks because every revision may change what's at any given line number.
Diffstat (limited to 'html/087file.cc.html')
-rw-r--r--html/087file.cc.html480
1 files changed, 252 insertions, 228 deletions
diff --git a/html/087file.cc.html b/html/087file.cc.html
index 19693cec..0b6f7360 100644
--- a/html/087file.cc.html
+++ b/html/087file.cc.html
@@ -6,7 +6,7 @@
 <meta name="Generator" content="Vim/7.4">
 <meta name="plugin-version" content="vim7.4_v2">
 <meta name="syntax" content="cpp">
-<meta name="settings" content="use_css,pre_wrap,no_foldcolumn,expand_tabs,prevent_copy=">
+<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
 <meta name="colorscheme" content="minimal">
 <style type="text/css">
 <!--
@@ -14,9 +14,10 @@ pre { white-space: pre-wrap; font-family: monospace; color: #eeeeee; background-
 body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color: #080808; }
 * { font-size: 12pt; font-size: 1em; }
 .Constant { color: #00a0a0; }
+.cSpecial { color: #008000; }
 .Comment { color: #9090ff; }
 .Delimiter { color: #800080; }
-.cSpecial { color: #008000; }
+.LineNr { color: #444444; }
 .Identifier { color: #c0a020; }
 .Normal { color: #eeeeee; background-color: #080808; padding-bottom: 1px; }
 .PreProc { color: #800080; }
@@ -26,236 +27,259 @@ body { font-size: 12pt; font-family: monospace; color: #eeeeee; background-color
 <script type='text/javascript'>
 <!--
 
+/* function to open any folds containing a jumped-to line before jumping to it */
+function JumpToLine()
+{
+  var lineNum;
+  lineNum = window.location.hash;
+  lineNum = lineNum.substr(1); /* strip off '#' */
+
+  if (lineNum.indexOf('L') == -1) {
+    lineNum = 'L'+lineNum;
+  }
+  lineElem = document.getElementById(lineNum);
+  /* Always jump to new location even if the line was hidden inside a fold, or
+   * we corrected the raw number to a line ID.
+   */
+  if (lineElem) {
+    lineElem.scrollIntoView(true);
+  }
+  return true;
+}
+if ('onhashchange' in window) {
+  window.onhashchange = JumpToLine;
+}
+
 -->
 </script>
 </head>
-<body>
+<body onload='JumpToLine();'>
 <pre id='vimCodeElement'>
-<span class="Comment">//: Interacting with the file system.</span>
-<span class="Comment">//:   '$open-file-for-reading' returns a FILE* as a number (ugh)</span>
-<span class="Comment">//:   '$read-from-file' accepts a number, interprets it as a FILE* (double ugh) and reads a character from it</span>
-<span class="Comment">//: Similarly for writing files.</span>
-<span class="Comment">//: These interfaces are ugly and tied to the current (Linux) host Mu happens</span>
-<span class="Comment">//: to be implemented atop. Later layers will wrap them with better, more</span>
-<span class="Comment">//: testable interfaces.</span>
-<span class="Comment">//:</span>
-<span class="Comment">//: Clearly we don't care about performance or any of that so far.</span>
-<span class="Comment">//: todo: reading/writing binary files</span>
-
-<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
-_OPEN_FILE_FOR_READING<span class="Delimiter">,</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$open-file-for-reading&quot;</span><span class="Delimiter">,</span> _OPEN_FILE_FOR_READING<span class="Delimiter">);</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
-<span class="Normal">case</span> _OPEN_FILE_FOR_READING: <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-file-for-reading' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!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">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<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;first ingredient of '$open-file-for-reading' should be a string, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-file-for-reading' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<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;first product of '$open-file-for-reading' should be a number (file handle), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
-<span class="Normal">case</span> _OPEN_FILE_FOR_READING: <span class="Delimiter">{</span>
-  string filename = read_mu_text<span class="Delimiter">(</span>ingredients<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>
-  assert<span class="Delimiter">(</span><span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span><span class="Delimiter">)</span> &gt;= <span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Normal">FILE</span>*<span class="Delimiter">));</span>
-  <span class="Normal">FILE</span>* f = fopen<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> <span class="Constant">&quot;r&quot;</span><span class="Delimiter">);</span>
-  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> result = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>f<span class="Delimiter">);</span>
-  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</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="Normal">static_cast</span>&lt;<span class="Normal">double</span>&gt;<span class="Delimiter">(</span>result<span class="Delimiter">));</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
-
-<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
-_OPEN_FILE_FOR_WRITING<span class="Delimiter">,</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$open-file-for-writing&quot;</span><span class="Delimiter">,</span> _OPEN_FILE_FOR_WRITING<span class="Delimiter">);</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
-<span class="Normal">case</span> _OPEN_FILE_FOR_WRITING: <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<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;'$open-file-for-writing' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_text<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of '$open-file-for-writing' should be a string, but got '&quot;</span> &lt;&lt; to_string<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> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<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;'$open-file-for-writing' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first product of '$open-file-for-writing' should be a number (file handle), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
-<span class="Normal">case</span> _OPEN_FILE_FOR_WRITING: <span class="Delimiter">{</span>
-  string filename = read_mu_text<span class="Delimiter">(</span>ingredients<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>
-  assert<span class="Delimiter">(</span><span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span><span class="Delimiter">)</span> &gt;= <span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Normal">FILE</span>*<span class="Delimiter">));</span>
-  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> result = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>fopen<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> <span class="Constant">&quot;w&quot;</span><span class="Delimiter">));</span>
-  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</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="Normal">static_cast</span>&lt;<span class="Normal">double</span>&gt;<span class="Delimiter">(</span>result<span class="Delimiter">));</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
-
-<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
-_READ_FROM_FILE<span class="Delimiter">,</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$read-from-file&quot;</span><span class="Delimiter">,</span> _READ_FROM_FILE<span class="Delimiter">);</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
-<span class="Normal">case</span> _READ_FROM_FILE: <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-file' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<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>
-    raise &lt;&lt; maybe<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;first ingredient of '$read-from-file' should be a number, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-file' requires exactly two products, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_character<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<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;first product of '$read-from-file' should be a character, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;second product of '$read-from-file' should be a boolean, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
-<span class="Normal">case</span> _READ_FROM_FILE: <span class="Delimiter">{</span>
-  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> x = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<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>
-  <span class="Normal">FILE</span>* f = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">FILE</span>*&gt;<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>f == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;can't read from null file in '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>feof<span class="Delimiter">(</span>f<span class="Delimiter">))</span> <span class="Delimiter">{</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="Constant">0</span><span class="Delimiter">);</span>
-    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>  <span class="Comment">// eof</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>ferror<span class="Delimiter">(</span>f<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;file in invalid state in '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">char</span> c = getc<span class="Delimiter">(</span>f<span class="Delimiter">);</span>  <span class="Comment">// todo: unicode</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">EOF</span><span class="Delimiter">)</span> <span class="Delimiter">{</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="Constant">0</span><span class="Delimiter">);</span>
-    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>  <span class="Comment">// eof</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>ferror<span class="Delimiter">(</span>f<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;couldn't read from file in '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    raise &lt;&lt; <span class="Constant">&quot;  errno: &quot;</span> &lt;&lt; errno &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</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>c<span class="Delimiter">);</span>
-  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>  <span class="Comment">// not eof</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
-<span class="Delimiter">:(before &quot;End Includes&quot;)</span>
-<span class="PreProc">#include </span><span class="Constant">&lt;errno.h&gt;</span>
-
-<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
-_WRITE_TO_FILE<span class="Delimiter">,</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$write-to-file&quot;</span><span class="Delimiter">,</span> _WRITE_TO_FILE<span class="Delimiter">);</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
-<span class="Normal">case</span> _WRITE_TO_FILE: <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$write-to-file' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<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>
-    raise &lt;&lt; maybe<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;first ingredient of '$write-to-file' should be a number, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_character<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;second ingredient of '$write-to-file' should be a character, but got '&quot;</span> &lt;&lt; to_string<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> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<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;'$write-to-file' writes to no products, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
-<span class="Normal">case</span> _WRITE_TO_FILE: <span class="Delimiter">{</span>
-  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> x = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<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>
-  <span class="Normal">FILE</span>* f = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">FILE</span>*&gt;<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>f == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;can't write to null file in '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>feof<span class="Delimiter">(</span>f<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>ferror<span class="Delimiter">(</span>f<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;file in invalid state in '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> y = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<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="Constant">0</span><span class="Delimiter">));</span>
-  <span class="Normal">char</span> c = <span class="Normal">static_cast</span>&lt;<span class="Normal">char</span>&gt;<span class="Delimiter">(</span>y<span class="Delimiter">);</span>
-  putc<span class="Delimiter">(</span>c<span class="Delimiter">,</span> f<span class="Delimiter">);</span>  <span class="Comment">// todo: unicode</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>ferror<span class="Delimiter">(</span>f<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;couldn't write to file in '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    raise &lt;&lt; <span class="Constant">&quot;  errno: &quot;</span> &lt;&lt; errno &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
-
-<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
-_CLOSE_FILE<span class="Delimiter">,</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
-put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$close-file&quot;</span><span class="Delimiter">,</span> _CLOSE_FILE<span class="Delimiter">);</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
-<span class="Normal">case</span> _CLOSE_FILE: <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<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;'$close-file' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of '$close-file' should be a number, but got '&quot;</span> &lt;&lt; to_string<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> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<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;'$close-file' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name != inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-file' requires its product to be the same as its ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Identifier">break</span><span class="Delimiter">;</span>
-  <span class="Delimiter">}</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
-<span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
-<span class="Normal">case</span> _CLOSE_FILE: <span class="Delimiter">{</span>
-  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> x = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<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>
-  <span class="Normal">FILE</span>* f = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">FILE</span>*&gt;<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
-  fclose<span class="Delimiter">(</span>f<span class="Delimiter">);</span>
-  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</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="Constant">0</span><span class="Delimiter">);</span>  <span class="Comment">// todo: ensure that caller always resets the ingredient</span>
-  <span class="Identifier">break</span><span class="Delimiter">;</span>
-<span class="Delimiter">}</span>
+<a name="L1"></a><span id="L1" class="LineNr">  1 </span><span class="Comment">//: Interacting with the file system.</span>
+<a name="L2"></a><span id="L2" class="LineNr">  2 </span><span class="Comment">//:   '$open-file-for-reading' returns a FILE* as a number (ugh)</span>
+<a name="L3"></a><span id="L3" class="LineNr">  3 </span><span class="Comment">//:   '$read-from-file' accepts a number, interprets it as a FILE* (double ugh) and reads a character from it</span>
+<a name="L4"></a><span id="L4" class="LineNr">  4 </span><span class="Comment">//: Similarly for writing files.</span>
+<a name="L5"></a><span id="L5" class="LineNr">  5 </span><span class="Comment">//: These interfaces are ugly and tied to the current (Linux) host Mu happens</span>
+<a name="L6"></a><span id="L6" class="LineNr">  6 </span><span class="Comment">//: to be implemented atop. Later layers will wrap them with better, more</span>
+<a name="L7"></a><span id="L7" class="LineNr">  7 </span><span class="Comment">//: testable interfaces.</span>
+<a name="L8"></a><span id="L8" class="LineNr">  8 </span><span class="Comment">//:</span>
+<a name="L9"></a><span id="L9" class="LineNr">  9 </span><span class="Comment">//: Clearly we don't care about performance or any of that so far.</span>
+<a name="L10"></a><span id="L10" class="LineNr"> 10 </span><span class="Comment">//: todo: reading/writing binary files</span>
+<a name="L11"></a><span id="L11" class="LineNr"> 11 </span>
+<a name="L12"></a><span id="L12" class="LineNr"> 12 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
+<a name="L13"></a><span id="L13" class="LineNr"> 13 </span>_OPEN_FILE_FOR_READING<span class="Delimiter">,</span>
+<a name="L14"></a><span id="L14" class="LineNr"> 14 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
+<a name="L15"></a><span id="L15" class="LineNr"> 15 </span>put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$open-file-for-reading&quot;</span><span class="Delimiter">,</span> _OPEN_FILE_FOR_READING<span class="Delimiter">);</span>
+<a name="L16"></a><span id="L16" class="LineNr"> 16 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
+<a name="L17"></a><span id="L17" class="LineNr"> 17 </span><span class="Normal">case</span> _OPEN_FILE_FOR_READING: <span class="Delimiter">{</span>
+<a name="L18"></a><span id="L18" class="LineNr"> 18 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L19"></a><span id="L19" class="LineNr"> 19 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-file-for-reading' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L20"></a><span id="L20" class="LineNr"> 20 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L21"></a><span id="L21" class="LineNr"> 21 </span>  <span class="Delimiter">}</span>
+<a name="L22"></a><span id="L22" class="LineNr"> 22 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!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">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L23"></a><span id="L23" class="LineNr"> 23 </span>    raise &lt;&lt; maybe<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;first ingredient of '$open-file-for-reading' should be a string, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L24"></a><span id="L24" class="LineNr"> 24 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L25"></a><span id="L25" class="LineNr"> 25 </span>  <span class="Delimiter">}</span>
+<a name="L26"></a><span id="L26" class="LineNr"> 26 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L27"></a><span id="L27" class="LineNr"> 27 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-file-for-reading' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L28"></a><span id="L28" class="LineNr"> 28 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L29"></a><span id="L29" class="LineNr"> 29 </span>  <span class="Delimiter">}</span>
+<a name="L30"></a><span id="L30" class="LineNr"> 30 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L31"></a><span id="L31" class="LineNr"> 31 </span>    raise &lt;&lt; maybe<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;first product of '$open-file-for-reading' should be a number (file handle), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L32"></a><span id="L32" class="LineNr"> 32 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L33"></a><span id="L33" class="LineNr"> 33 </span>  <span class="Delimiter">}</span>
+<a name="L34"></a><span id="L34" class="LineNr"> 34 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L35"></a><span id="L35" class="LineNr"> 35 </span><span class="Delimiter">}</span>
+<a name="L36"></a><span id="L36" class="LineNr"> 36 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
+<a name="L37"></a><span id="L37" class="LineNr"> 37 </span><span class="Normal">case</span> _OPEN_FILE_FOR_READING: <span class="Delimiter">{</span>
+<a name="L38"></a><span id="L38" class="LineNr"> 38 </span>  string filename = read_mu_text<span class="Delimiter">(</span>ingredients<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>
+<a name="L39"></a><span id="L39" class="LineNr"> 39 </span>  assert<span class="Delimiter">(</span><span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span><span class="Delimiter">)</span> &gt;= <span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Normal">FILE</span>*<span class="Delimiter">));</span>
+<a name="L40"></a><span id="L40" class="LineNr"> 40 </span>  <span class="Normal">FILE</span>* f = fopen<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> <span class="Constant">&quot;r&quot;</span><span class="Delimiter">);</span>
+<a name="L41"></a><span id="L41" class="LineNr"> 41 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> result = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>f<span class="Delimiter">);</span>
+<a name="L42"></a><span id="L42" class="LineNr"> 42 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
+<a name="L43"></a><span id="L43" class="LineNr"> 43 </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="Normal">static_cast</span>&lt;<span class="Normal">double</span>&gt;<span class="Delimiter">(</span>result<span class="Delimiter">));</span>
+<a name="L44"></a><span id="L44" class="LineNr"> 44 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L45"></a><span id="L45" class="LineNr"> 45 </span><span class="Delimiter">}</span>
+<a name="L46"></a><span id="L46" class="LineNr"> 46 </span>
+<a name="L47"></a><span id="L47" class="LineNr"> 47 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
+<a name="L48"></a><span id="L48" class="LineNr"> 48 </span>_OPEN_FILE_FOR_WRITING<span class="Delimiter">,</span>
+<a name="L49"></a><span id="L49" class="LineNr"> 49 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
+<a name="L50"></a><span id="L50" class="LineNr"> 50 </span>put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$open-file-for-writing&quot;</span><span class="Delimiter">,</span> _OPEN_FILE_FOR_WRITING<span class="Delimiter">);</span>
+<a name="L51"></a><span id="L51" class="LineNr"> 51 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
+<a name="L52"></a><span id="L52" class="LineNr"> 52 </span><span class="Normal">case</span> _OPEN_FILE_FOR_WRITING: <span class="Delimiter">{</span>
+<a name="L53"></a><span id="L53" class="LineNr"> 53 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L54"></a><span id="L54" class="LineNr"> 54 </span>    raise &lt;&lt; maybe<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;'$open-file-for-writing' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L55"></a><span id="L55" class="LineNr"> 55 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L56"></a><span id="L56" class="LineNr"> 56 </span>  <span class="Delimiter">}</span>
+<a name="L57"></a><span id="L57" class="LineNr"> 57 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_text<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L58"></a><span id="L58" class="LineNr"> 58 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of '$open-file-for-writing' should be a string, but got '&quot;</span> &lt;&lt; to_string<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> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L59"></a><span id="L59" class="LineNr"> 59 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L60"></a><span id="L60" class="LineNr"> 60 </span>  <span class="Delimiter">}</span>
+<a name="L61"></a><span id="L61" class="LineNr"> 61 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L62"></a><span id="L62" class="LineNr"> 62 </span>    raise &lt;&lt; maybe<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;'$open-file-for-writing' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L63"></a><span id="L63" class="LineNr"> 63 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L64"></a><span id="L64" class="LineNr"> 64 </span>  <span class="Delimiter">}</span>
+<a name="L65"></a><span id="L65" class="LineNr"> 65 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L66"></a><span id="L66" class="LineNr"> 66 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first product of '$open-file-for-writing' should be a number (file handle), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L67"></a><span id="L67" class="LineNr"> 67 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L68"></a><span id="L68" class="LineNr"> 68 </span>  <span class="Delimiter">}</span>
+<a name="L69"></a><span id="L69" class="LineNr"> 69 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L70"></a><span id="L70" class="LineNr"> 70 </span><span class="Delimiter">}</span>
+<a name="L71"></a><span id="L71" class="LineNr"> 71 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
+<a name="L72"></a><span id="L72" class="LineNr"> 72 </span><span class="Normal">case</span> _OPEN_FILE_FOR_WRITING: <span class="Delimiter">{</span>
+<a name="L73"></a><span id="L73" class="LineNr"> 73 </span>  string filename = read_mu_text<span class="Delimiter">(</span>ingredients<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>
+<a name="L74"></a><span id="L74" class="LineNr"> 74 </span>  assert<span class="Delimiter">(</span><span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span><span class="Delimiter">)</span> &gt;= <span class="Normal">sizeof</span><span class="Delimiter">(</span><span class="Normal">FILE</span>*<span class="Delimiter">));</span>
+<a name="L75"></a><span id="L75" class="LineNr"> 75 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> result = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>fopen<span class="Delimiter">(</span>filename<span class="Delimiter">.</span>c_str<span class="Delimiter">(),</span> <span class="Constant">&quot;w&quot;</span><span class="Delimiter">));</span>
+<a name="L76"></a><span id="L76" class="LineNr"> 76 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
+<a name="L77"></a><span id="L77" class="LineNr"> 77 </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="Normal">static_cast</span>&lt;<span class="Normal">double</span>&gt;<span class="Delimiter">(</span>result<span class="Delimiter">));</span>
+<a name="L78"></a><span id="L78" class="LineNr"> 78 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L79"></a><span id="L79" class="LineNr"> 79 </span><span class="Delimiter">}</span>
+<a name="L80"></a><span id="L80" class="LineNr"> 80 </span>
+<a name="L81"></a><span id="L81" class="LineNr"> 81 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
+<a name="L82"></a><span id="L82" class="LineNr"> 82 </span>_READ_FROM_FILE<span class="Delimiter">,</span>
+<a name="L83"></a><span id="L83" class="LineNr"> 83 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
+<a name="L84"></a><span id="L84" class="LineNr"> 84 </span>put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$read-from-file&quot;</span><span class="Delimiter">,</span> _READ_FROM_FILE<span class="Delimiter">);</span>
+<a name="L85"></a><span id="L85" class="LineNr"> 85 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
+<a name="L86"></a><span id="L86" class="LineNr"> 86 </span><span class="Normal">case</span> _READ_FROM_FILE: <span class="Delimiter">{</span>
+<a name="L87"></a><span id="L87" class="LineNr"> 87 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L88"></a><span id="L88" class="LineNr"> 88 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-file' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L89"></a><span id="L89" class="LineNr"> 89 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L90"></a><span id="L90" class="LineNr"> 90 </span>  <span class="Delimiter">}</span>
+<a name="L91"></a><span id="L91" class="LineNr"> 91 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<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>
+<a name="L92"></a><span id="L92" class="LineNr"> 92 </span>    raise &lt;&lt; maybe<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;first ingredient of '$read-from-file' should be a number, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L93"></a><span id="L93" class="LineNr"> 93 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L94"></a><span id="L94" class="LineNr"> 94 </span>  <span class="Delimiter">}</span>
+<a name="L95"></a><span id="L95" class="LineNr"> 95 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L96"></a><span id="L96" class="LineNr"> 96 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-file' requires exactly two products, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L97"></a><span id="L97" class="LineNr"> 97 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L98"></a><span id="L98" class="LineNr"> 98 </span>  <span class="Delimiter">}</span>
+<a name="L99"></a><span id="L99" class="LineNr"> 99 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_character<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L100"></a><span id="L100" class="LineNr">100 </span>    raise &lt;&lt; maybe<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;first product of '$read-from-file' should be a character, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L101"></a><span id="L101" class="LineNr">101 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L102"></a><span id="L102" class="LineNr">102 </span>  <span class="Delimiter">}</span>
+<a name="L103"></a><span id="L103" class="LineNr">103 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L104"></a><span id="L104" class="LineNr">104 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;second product of '$read-from-file' should be a boolean, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L105"></a><span id="L105" class="LineNr">105 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L106"></a><span id="L106" class="LineNr">106 </span>  <span class="Delimiter">}</span>
+<a name="L107"></a><span id="L107" class="LineNr">107 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L108"></a><span id="L108" class="LineNr">108 </span><span class="Delimiter">}</span>
+<a name="L109"></a><span id="L109" class="LineNr">109 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
+<a name="L110"></a><span id="L110" class="LineNr">110 </span><span class="Normal">case</span> _READ_FROM_FILE: <span class="Delimiter">{</span>
+<a name="L111"></a><span id="L111" class="LineNr">111 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> x = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<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>
+<a name="L112"></a><span id="L112" class="LineNr">112 </span>  <span class="Normal">FILE</span>* f = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">FILE</span>*&gt;<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
+<a name="L113"></a><span id="L113" class="LineNr">113 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>f == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L114"></a><span id="L114" class="LineNr">114 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;can't read from null file in '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L115"></a><span id="L115" class="LineNr">115 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L116"></a><span id="L116" class="LineNr">116 </span>  <span class="Delimiter">}</span>
+<a name="L117"></a><span id="L117" class="LineNr">117 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span>
+<a name="L118"></a><span id="L118" class="LineNr">118 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>feof<span class="Delimiter">(</span>f<span class="Delimiter">))</span> <span class="Delimiter">{</span>
+<a name="L119"></a><span id="L119" class="LineNr">119 </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="Constant">0</span><span class="Delimiter">);</span>
+<a name="L120"></a><span id="L120" class="LineNr">120 </span>    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>  <span class="Comment">// eof</span>
+<a name="L121"></a><span id="L121" class="LineNr">121 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L122"></a><span id="L122" class="LineNr">122 </span>  <span class="Delimiter">}</span>
+<a name="L123"></a><span id="L123" class="LineNr">123 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>ferror<span class="Delimiter">(</span>f<span class="Delimiter">))</span> <span class="Delimiter">{</span>
+<a name="L124"></a><span id="L124" class="LineNr">124 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;file in invalid state in '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L125"></a><span id="L125" class="LineNr">125 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L126"></a><span id="L126" class="LineNr">126 </span>  <span class="Delimiter">}</span>
+<a name="L127"></a><span id="L127" class="LineNr">127 </span>  <span class="Normal">char</span> c = getc<span class="Delimiter">(</span>f<span class="Delimiter">);</span>  <span class="Comment">// todo: unicode</span>
+<a name="L128"></a><span id="L128" class="LineNr">128 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>c == <span class="Constant">EOF</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L129"></a><span id="L129" class="LineNr">129 </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="Constant">0</span><span class="Delimiter">);</span>
+<a name="L130"></a><span id="L130" class="LineNr">130 </span>    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>  <span class="Comment">// eof</span>
+<a name="L131"></a><span id="L131" class="LineNr">131 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L132"></a><span id="L132" class="LineNr">132 </span>  <span class="Delimiter">}</span>
+<a name="L133"></a><span id="L133" class="LineNr">133 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>ferror<span class="Delimiter">(</span>f<span class="Delimiter">))</span> <span class="Delimiter">{</span>
+<a name="L134"></a><span id="L134" class="LineNr">134 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;couldn't read from file in '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L135"></a><span id="L135" class="LineNr">135 </span>    raise &lt;&lt; <span class="Constant">&quot;  errno: &quot;</span> &lt;&lt; errno &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L136"></a><span id="L136" class="LineNr">136 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L137"></a><span id="L137" class="LineNr">137 </span>  <span class="Delimiter">}</span>
+<a name="L138"></a><span id="L138" class="LineNr">138 </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>c<span class="Delimiter">);</span>
+<a name="L139"></a><span id="L139" class="LineNr">139 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>  <span class="Comment">// not eof</span>
+<a name="L140"></a><span id="L140" class="LineNr">140 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L141"></a><span id="L141" class="LineNr">141 </span><span class="Delimiter">}</span>
+<a name="L142"></a><span id="L142" class="LineNr">142 </span><span class="Delimiter">:(before &quot;End Includes&quot;)</span>
+<a name="L143"></a><span id="L143" class="LineNr">143 </span><span class="PreProc">#include </span><span class="Constant">&lt;errno.h&gt;</span>
+<a name="L144"></a><span id="L144" class="LineNr">144 </span>
+<a name="L145"></a><span id="L145" class="LineNr">145 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
+<a name="L146"></a><span id="L146" class="LineNr">146 </span>_WRITE_TO_FILE<span class="Delimiter">,</span>
+<a name="L147"></a><span id="L147" class="LineNr">147 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
+<a name="L148"></a><span id="L148" class="LineNr">148 </span>put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$write-to-file&quot;</span><span class="Delimiter">,</span> _WRITE_TO_FILE<span class="Delimiter">);</span>
+<a name="L149"></a><span id="L149" class="LineNr">149 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
+<a name="L150"></a><span id="L150" class="LineNr">150 </span><span class="Normal">case</span> _WRITE_TO_FILE: <span class="Delimiter">{</span>
+<a name="L151"></a><span id="L151" class="LineNr">151 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L152"></a><span id="L152" class="LineNr">152 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$write-to-file' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L153"></a><span id="L153" class="LineNr">153 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L154"></a><span id="L154" class="LineNr">154 </span>  <span class="Delimiter">}</span>
+<a name="L155"></a><span id="L155" class="LineNr">155 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<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>
+<a name="L156"></a><span id="L156" class="LineNr">156 </span>    raise &lt;&lt; maybe<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;first ingredient of '$write-to-file' should be a number, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L157"></a><span id="L157" class="LineNr">157 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L158"></a><span id="L158" class="LineNr">158 </span>  <span class="Delimiter">}</span>
+<a name="L159"></a><span id="L159" class="LineNr">159 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_character<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L160"></a><span id="L160" class="LineNr">160 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;second ingredient of '$write-to-file' should be a character, but got '&quot;</span> &lt;&lt; to_string<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> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L161"></a><span id="L161" class="LineNr">161 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L162"></a><span id="L162" class="LineNr">162 </span>  <span class="Delimiter">}</span>
+<a name="L163"></a><span id="L163" class="LineNr">163 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
+<a name="L164"></a><span id="L164" class="LineNr">164 </span>    raise &lt;&lt; maybe<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;'$write-to-file' writes to no products, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L165"></a><span id="L165" class="LineNr">165 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L166"></a><span id="L166" class="LineNr">166 </span>  <span class="Delimiter">}</span>
+<a name="L167"></a><span id="L167" class="LineNr">167 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L168"></a><span id="L168" class="LineNr">168 </span><span class="Delimiter">}</span>
+<a name="L169"></a><span id="L169" class="LineNr">169 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
+<a name="L170"></a><span id="L170" class="LineNr">170 </span><span class="Normal">case</span> _WRITE_TO_FILE: <span class="Delimiter">{</span>
+<a name="L171"></a><span id="L171" class="LineNr">171 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> x = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<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>
+<a name="L172"></a><span id="L172" class="LineNr">172 </span>  <span class="Normal">FILE</span>* f = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">FILE</span>*&gt;<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
+<a name="L173"></a><span id="L173" class="LineNr">173 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>f == <span class="Constant">NULL</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L174"></a><span id="L174" class="LineNr">174 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;can't write to null file in '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L175"></a><span id="L175" class="LineNr">175 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L176"></a><span id="L176" class="LineNr">176 </span>  <span class="Delimiter">}</span>
+<a name="L177"></a><span id="L177" class="LineNr">177 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>feof<span class="Delimiter">(</span>f<span class="Delimiter">))</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L178"></a><span id="L178" class="LineNr">178 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>ferror<span class="Delimiter">(</span>f<span class="Delimiter">))</span> <span class="Delimiter">{</span>
+<a name="L179"></a><span id="L179" class="LineNr">179 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;file in invalid state in '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L180"></a><span id="L180" class="LineNr">180 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L181"></a><span id="L181" class="LineNr">181 </span>  <span class="Delimiter">}</span>
+<a name="L182"></a><span id="L182" class="LineNr">182 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> y = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<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="Constant">0</span><span class="Delimiter">));</span>
+<a name="L183"></a><span id="L183" class="LineNr">183 </span>  <span class="Normal">char</span> c = <span class="Normal">static_cast</span>&lt;<span class="Normal">char</span>&gt;<span class="Delimiter">(</span>y<span class="Delimiter">);</span>
+<a name="L184"></a><span id="L184" class="LineNr">184 </span>  putc<span class="Delimiter">(</span>c<span class="Delimiter">,</span> f<span class="Delimiter">);</span>  <span class="Comment">// todo: unicode</span>
+<a name="L185"></a><span id="L185" class="LineNr">185 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>ferror<span class="Delimiter">(</span>f<span class="Delimiter">))</span> <span class="Delimiter">{</span>
+<a name="L186"></a><span id="L186" class="LineNr">186 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;couldn't write to file in '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L187"></a><span id="L187" class="LineNr">187 </span>    raise &lt;&lt; <span class="Constant">&quot;  errno: &quot;</span> &lt;&lt; errno &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L188"></a><span id="L188" class="LineNr">188 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L189"></a><span id="L189" class="LineNr">189 </span>  <span class="Delimiter">}</span>
+<a name="L190"></a><span id="L190" class="LineNr">190 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L191"></a><span id="L191" class="LineNr">191 </span><span class="Delimiter">}</span>
+<a name="L192"></a><span id="L192" class="LineNr">192 </span>
+<a name="L193"></a><span id="L193" class="LineNr">193 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
+<a name="L194"></a><span id="L194" class="LineNr">194 </span>_CLOSE_FILE<span class="Delimiter">,</span>
+<a name="L195"></a><span id="L195" class="LineNr">195 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
+<a name="L196"></a><span id="L196" class="LineNr">196 </span>put<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$close-file&quot;</span><span class="Delimiter">,</span> _CLOSE_FILE<span class="Delimiter">);</span>
+<a name="L197"></a><span id="L197" class="LineNr">197 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
+<a name="L198"></a><span id="L198" class="LineNr">198 </span><span class="Normal">case</span> _CLOSE_FILE: <span class="Delimiter">{</span>
+<a name="L199"></a><span id="L199" class="LineNr">199 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L200"></a><span id="L200" class="LineNr">200 </span>    raise &lt;&lt; maybe<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;'$close-file' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L201"></a><span id="L201" class="LineNr">201 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L202"></a><span id="L202" class="LineNr">202 </span>  <span class="Delimiter">}</span>
+<a name="L203"></a><span id="L203" class="LineNr">203 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+<a name="L204"></a><span id="L204" class="LineNr">204 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of '$close-file' should be a number, but got '&quot;</span> &lt;&lt; to_string<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> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L205"></a><span id="L205" class="LineNr">205 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L206"></a><span id="L206" class="LineNr">206 </span>  <span class="Delimiter">}</span>
+<a name="L207"></a><span id="L207" class="LineNr">207 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L208"></a><span id="L208" class="LineNr">208 </span>    raise &lt;&lt; maybe<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;'$close-file' requires exactly one product, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L209"></a><span id="L209" class="LineNr">209 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L210"></a><span id="L210" class="LineNr">210 </span>  <span class="Delimiter">}</span>
+<a name="L211"></a><span id="L211" class="LineNr">211 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name != inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+<a name="L212"></a><span id="L212" class="LineNr">212 </span>    raise &lt;&lt; maybe<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-file' requires its product to be the same as its ingredient, but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+<a name="L213"></a><span id="L213" class="LineNr">213 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L214"></a><span id="L214" class="LineNr">214 </span>  <span class="Delimiter">}</span>
+<a name="L215"></a><span id="L215" class="LineNr">215 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L216"></a><span id="L216" class="LineNr">216 </span><span class="Delimiter">}</span>
+<a name="L217"></a><span id="L217" class="LineNr">217 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
+<a name="L218"></a><span id="L218" class="LineNr">218 </span><span class="Normal">case</span> _CLOSE_FILE: <span class="Delimiter">{</span>
+<a name="L219"></a><span id="L219" class="LineNr">219 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> x = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<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>
+<a name="L220"></a><span id="L220" class="LineNr">220 </span>  <span class="Normal">FILE</span>* f = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">FILE</span>*&gt;<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
+<a name="L221"></a><span id="L221" class="LineNr">221 </span>  fclose<span class="Delimiter">(</span>f<span class="Delimiter">);</span>
+<a name="L222"></a><span id="L222" class="LineNr">222 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
+<a name="L223"></a><span id="L223" class="LineNr">223 </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="Constant">0</span><span class="Delimiter">);</span>  <span class="Comment">// todo: ensure that caller always resets the ingredient</span>
+<a name="L224"></a><span id="L224" class="LineNr">224 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<a name="L225"></a><span id="L225" class="LineNr">225 </span><span class="Delimiter">}</span>
 </pre>
 </body>
 </html>