ifhub/inform7
1
0
Fork 0
mirror of https://github.com/ganelson/inform.git synced 2024-07-03 07:24:58 +03:00
Code Issues Projects Releases Wiki Activity
inform7/docs/calculus-test/1-dcl.html
Graham Nelson 2d30638e0d Fix for Jira bug I7-2117
2022-05-17 21:33:35 +01:00

523 lines
122 KiB
HTML
Raw Blame History

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Declarations</title>
<link href="../docs-assets/Breadcrumbs.css" rel="stylesheet" rev="stylesheet" type="text/css">
<meta name="viewport" content="width=device-width initial-scale=1">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta http-equiv="Content-Language" content="en-gb">
<link href="../docs-assets/Contents.css" rel="stylesheet" rev="stylesheet" type="text/css">
<link href="../docs-assets/Progress.css" rel="stylesheet" rev="stylesheet" type="text/css">
<link href="../docs-assets/Navigation.css" rel="stylesheet" rev="stylesheet" type="text/css">
<link href="../docs-assets/Fonts.css" rel="stylesheet" rev="stylesheet" type="text/css">
<link href="../docs-assets/Base.css" rel="stylesheet" rev="stylesheet" type="text/css">
<script>
function togglePopup(material_id) {
var popup = document.getElementById(material_id);
popup.classList.toggle("show");
}
</script>
<link href="../docs-assets/Popups.css" rel="stylesheet" rev="stylesheet" type="text/css">
<link href="../docs-assets/Colours.css" rel="stylesheet" rev="stylesheet" type="text/css">
<link href="../docs-assets/Preform-Colours.css" rel="stylesheet" rev="stylesheet" type="text/css">
</head>
<body class="commentary-font">
<nav role="navigation">
<h1><a href="../index.html">
<img src="../docs-assets/Inform.png" height=72">
</a></h1>
<ul><li><a href="../index.html">home</a></li>
</ul><h2>Compiler</h2><ul>
<li><a href="../structure.html">structure</a></li>
<li><a href="../inbuildn.html">inbuild</a></li>
<li><a href="../inform7n.html">inform7</a></li>
<li><a href="../intern.html">inter</a></li>
<li><a href="../services.html">services</a></li>
<li><a href="../secrets.html">secrets</a></li>
</ul><h2>Other Tools</h2><ul>
<li><a href="../inblorbn.html">inblorb</a></li>
<li><a href="../indocn.html">indoc</a></li>
<li><a href="../inform6.html">inform6</a></li>
<li><a href="../inpolicyn.html">inpolicy</a></li>
<li><a href="../inrtpsn.html">inrtps</a></li>
</ul><h2>Resources</h2><ul>
<li><a href="../extensions.html">extensions</a></li>
<li><a href="../kits.html">kits</a></li>
</ul><h2>Repository</h2><ul>
<li><a href="https://github.com/ganelson/inform"><img src="../docs-assets/github.png" height=18> github</a></li>
</ul><h2>Related Projects</h2><ul>
<li><a href="../../../inweb/index.html">inweb</a></li>
<li><a href="../../../intest/index.html">intest</a></li>
</ul>
</nav>
<main role="main">
<!--Weave of 'Declarations' generated by Inweb-->
<div class="breadcrumbs">
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../services.html">Services</a></li><li><a href="index.html">calculus-test</a></li><li><a href="index.html#1">Chapter 1: Scaffolding</a></li><li><b>Declarations</b></li></ul></div>
<p class="purpose">Reading declarations from a file.</p>
<ul class="toc"><li><a href="1-dcl.html#SP1">&#167;1. Keeping the syntax module happy</a></li><li><a href="1-dcl.html#SP2">&#167;2. REPL variables</a></li><li><a href="1-dcl.html#SP3">&#167;3. A sort of REPL</a></li></ul><hr class="tocbar">
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. Keeping the syntax module happy. </b>We are going to need to use the sentence-breaking apparatus from the <a href="../syntax-module/index.html" class="internal">syntax</a>
module, which means that the following four nonterminals need to exist. But in
fact they are really just placeholders &mdash; they are wired so that they can never
match any text.
</p>
<pre class="Preform-displayed-code all-displayed-code code-font">
<span class="Preform-function-syntax">&lt;dividing-sentence&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { fail }</span>
<span class="Preform-function-syntax">&lt;structural-sentence&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { fail }</span>
<span class="Preform-function-syntax">&lt;language-modifying-sentence&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { fail }</span>
<span class="Preform-function-syntax">&lt;comma-divisible-sentence&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { fail }</span>
</pre>
<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>&#167;2. REPL variables. </b></p>
<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="Preform-constant-syntax">repl_var_CLASS</span>
<span class="definition-keyword">enum</span> <span class="Preform-constant-syntax">named_function_CLASS</span>
<span class="definition-keyword">enum</span> <span class="Preform-constant-syntax">named_unary_predicate_CLASS</span>
</pre>
<pre class="Preform-displayed-code all-displayed-code code-font">
<span class="Preform-identifier-syntax">DECLARE_CLASS</span><span class="Preform-plain-syntax">(</span><span class="Preform-reserved-syntax">repl_var</span><span class="Preform-plain-syntax">)</span>
<span class="Preform-identifier-syntax">DECLARE_CLASS</span><span class="Preform-plain-syntax">(</span><span class="Preform-reserved-syntax">named_function</span><span class="Preform-plain-syntax">)</span>
<span class="Preform-identifier-syntax">DECLARE_CLASS</span><span class="Preform-plain-syntax">(</span><span class="Preform-reserved-syntax">named_unary_predicate</span><span class="Preform-plain-syntax">)</span>
<span class="Preform-reserved-syntax">typedef</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">struct</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">repl_var</span><span class="Preform-plain-syntax"> {</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">struct</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">wording</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">name</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">struct</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">pcalc_prop</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">val</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">CLASS_DEFINITION</span>
<span class="Preform-plain-syntax">} </span><span class="Preform-reserved-syntax">repl_var</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-reserved-syntax">typedef</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">struct</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">named_function</span><span class="Preform-plain-syntax"> {</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">struct</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">wording</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">name</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">struct</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">binary_predicate</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">bp</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">int</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">side</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">CLASS_DEFINITION</span>
<span class="Preform-plain-syntax">} </span><span class="Preform-reserved-syntax">named_function</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-reserved-syntax">typedef</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">struct</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">named_unary_predicate</span><span class="Preform-plain-syntax"> {</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">struct</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">wording</span><span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">name</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">struct</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">unary_predicate</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">up</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">CLASS_DEFINITION</span>
<span class="Preform-plain-syntax">} </span><span class="Preform-reserved-syntax">named_unary_predicate</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-function-syntax">&lt;new-repl-variable&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">internal</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">{</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">repl_var</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">rv</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">LOOP_OVER</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">rv</span><span class="Preform-plain-syntax">, </span><span class="Preform-reserved-syntax">repl_var</span><span class="Preform-plain-syntax">)</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">if</span><span class="Preform-plain-syntax"> (</span><a href="../words-module/3-wrd.html#SP13" class="function-link"><span class="Preform-function-syntax">Wordings::match</span></a><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">rv</span><span class="Preform-plain-syntax">-&gt;</span><span class="Preform-element-syntax">name</span><span class="Preform-plain-syntax">, </span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">)) {</span>
<span class="Preform-plain-syntax"> ==&gt; { -, </span><span class="Preform-identifier-syntax">rv</span><span class="Preform-plain-syntax"> }; </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">TRUE</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">rv</span><span class="Preform-plain-syntax"> = </span><span class="Preform-identifier-syntax">CREATE</span><span class="Preform-plain-syntax">(</span><span class="Preform-reserved-syntax">repl_var</span><span class="Preform-plain-syntax">);</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">rv</span><span class="Preform-plain-syntax">-&gt;</span><span class="Preform-element-syntax">val</span><span class="Preform-plain-syntax"> = </span><span class="Preform-identifier-syntax">NULL</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">rv</span><span class="Preform-plain-syntax">-&gt;</span><span class="Preform-element-syntax">name</span><span class="Preform-plain-syntax"> = </span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> ==&gt; { -, </span><span class="Preform-identifier-syntax">rv</span><span class="Preform-plain-syntax"> }; </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">TRUE</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax">}</span>
<span class="Preform-function-syntax">&lt;repl-variable&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">internal</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">{</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">repl_var</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">rv</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">LOOP_OVER</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">rv</span><span class="Preform-plain-syntax">, </span><span class="Preform-reserved-syntax">repl_var</span><span class="Preform-plain-syntax">)</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">if</span><span class="Preform-plain-syntax"> (</span><a href="../words-module/3-wrd.html#SP13" class="function-link"><span class="Preform-function-syntax">Wordings::match</span></a><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">rv</span><span class="Preform-plain-syntax">-&gt;</span><span class="Preform-element-syntax">name</span><span class="Preform-plain-syntax">, </span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">)) {</span>
<span class="Preform-plain-syntax"> ==&gt; { -, </span><span class="Preform-identifier-syntax">rv</span><span class="Preform-plain-syntax"> }; </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">TRUE</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">FALSE</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax">}</span>
<span class="Preform-function-syntax">&lt;named-function&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">internal</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">{</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">named_function</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">nf</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">LOOP_OVER</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">nf</span><span class="Preform-plain-syntax">, </span><span class="Preform-reserved-syntax">named_function</span><span class="Preform-plain-syntax">)</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">if</span><span class="Preform-plain-syntax"> (</span><a href="../words-module/3-wrd.html#SP13" class="function-link"><span class="Preform-function-syntax">Wordings::match</span></a><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">nf</span><span class="Preform-plain-syntax">-&gt;</span><span class="Preform-element-syntax">name</span><span class="Preform-plain-syntax">, </span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">)) {</span>
<span class="Preform-plain-syntax"> ==&gt; { -, </span><span class="Preform-identifier-syntax">nf</span><span class="Preform-plain-syntax"> }; </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">TRUE</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">FALSE</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax">}</span>
<span class="Preform-function-syntax">&lt;unary-name&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">internal</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">{</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">named_unary_predicate</span><span class="Preform-plain-syntax"> *</span><span class="Preform-identifier-syntax">nup</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-identifier-syntax">LOOP_OVER</span><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">nup</span><span class="Preform-plain-syntax">, </span><span class="Preform-reserved-syntax">named_unary_predicate</span><span class="Preform-plain-syntax">)</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">if</span><span class="Preform-plain-syntax"> (</span><a href="../words-module/3-wrd.html#SP13" class="function-link"><span class="Preform-function-syntax">Wordings::match</span></a><span class="Preform-plain-syntax">(</span><span class="Preform-identifier-syntax">nup</span><span class="Preform-plain-syntax">-&gt;</span><span class="Preform-identifier-syntax">name</span><span class="Preform-plain-syntax">, </span><span class="Preform-identifier-syntax">W</span><span class="Preform-plain-syntax">)) {</span>
<span class="Preform-plain-syntax"> ==&gt; { -, </span><span class="Preform-identifier-syntax">nup</span><span class="Preform-plain-syntax">-&gt;</span><span class="Preform-element-syntax">up</span><span class="Preform-plain-syntax"> }; </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">TRUE</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax"> }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">return</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">FALSE</span><span class="Preform-plain-syntax">;</span>
<span class="Preform-plain-syntax">}</span>
</pre>
<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li><li>The structure repl_var is accessed in 2/trs, 4/prp, 3/tff, 1/sc, 2/art, 2/prn, 3/dmn, 5/smp and here.</li><li>The structure named_function is accessed in 2/trs, 4/prp, 3/tff, 1/sc, 2/art, 2/prn, 3/dmn, 4/trm, 4/tcp, 5/smp and here.</li><li>The structure named_unary_predicate is accessed in 2/trs, 4/prp, 3/tff, 1/sc, 2/art, 2/prn, 3/dmn, 5/smp and here.</li></ul>
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>&#167;3. A sort of REPL. </b>The following function reads a file whose name is in <span class="extract"><span class="Preform-extract-syntax">arg</span></span>, feeds it into
the lexer, builds a syntax tree of its sentences, and then walks through
that tree, applying the Preform nonterminal &lt;declaration-line&gt; to each
sentence. In effect, this is a read-evaluate-print loop.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">parse_node_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">syntax_tree</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">test_err</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Declarations::load_from_file</span><button class="popup" onclick="togglePopup('usagePopup1')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup1">Usage of <span class="code-font"><span class="function-syntax">Declarations::load_from_file</span></span>:<br/>Program Control - <a href="1-pc.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">arg</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">filename</span><span class="plain-syntax"> *</span><span class="identifier-syntax">F</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/3-fln.html#SP3" class="function-link"><span class="function-syntax">Filenames::from_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">arg</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="constant-syntax">feed_t</span><span class="plain-syntax"> </span><span class="identifier-syntax">FD</span><span class="plain-syntax"> = </span><a href="../words-module/3-fds.html#SP2" class="function-link"><span class="function-syntax">Feeds::begin</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">source_file</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sf</span><span class="plain-syntax"> = </span><a href="../words-module/3-tff.html#SP3" class="function-link"><span class="function-syntax">TextFromFiles::feed_into_lexer</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">F</span><span class="plain-syntax">, </span><span class="constant-syntax">NULL_GENERAL_POINTER</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><a href="../words-module/3-fds.html#SP2" class="function-link"><span class="function-syntax">Feeds::end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">FD</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">sf</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) { </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"File has failed to open\n"</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax">; }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">syntax_tree</span><span class="plain-syntax"> = </span><a href="../syntax-module/2-st.html#SP2" class="function-link"><span class="function-syntax">SyntaxTree::new</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="../syntax-module/3-snt.html#SP5" class="function-link"><span class="function-syntax">Sentences::break</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">syntax_tree</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../calculus-module/3-bpf.html#SP2" class="function-link"><span class="function-syntax">BinaryPredicateFamilies::first_stock</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">test_err</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-sm.html#SP2" class="function-link"><span class="function-syntax">Str::new</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><a href="../syntax-module/2-st.html#SP10" class="function-link"><span class="function-syntax">SyntaxTree::traverse</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">syntax_tree</span><span class="plain-syntax">, </span><a href="1-dcl.html#SP3" class="function-link"><span class="function-syntax">Declarations::parse</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Declarations::parse</span><span class="plain-syntax">(</span><span class="reserved-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">p</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../syntax-module/2-pn.html#SP5" class="function-link"><span class="function-syntax">Node::get_type</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">) == </span><span class="constant-syntax">SENTENCE_NT</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><a href="../syntax-module/2-pn.html#SP4" class="function-link"><span class="function-syntax">Node::get_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="function-syntax">&lt;declaration-line&gt;</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>&#167;4. </b></p>
<pre class="Preform-displayed-code all-displayed-code code-font">
<span class="Preform-function-syntax">&lt;declaration-line&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">new</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">unary</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">###</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_5" class="named-paragraph-link"><span class="named-paragraph">Create new unary</span><span class="named-paragraph-number">4.5</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">new</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">binary</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">###</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">(</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">###</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">,</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">###</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">)</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_6" class="named-paragraph-link"><span class="named-paragraph">Create new binary</span><span class="named-paragraph-number">4.6</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">set</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;new-repl-variable&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">to</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_7" class="named-paragraph-link"><span class="named-paragraph">Set REPL var</span><span class="named-paragraph-number">4.7</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">term</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_8" class="named-paragraph-link"><span class="named-paragraph">Show term</span><span class="named-paragraph-number">4.8</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">constant</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">underlying</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_9" class="named-paragraph-link"><span class="named-paragraph">Show const underlying</span><span class="named-paragraph-number">4.9</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">variable</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">underlying</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_10" class="named-paragraph-link"><span class="named-paragraph">Show var underlying</span><span class="named-paragraph-number">4.10</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">variable</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">unused</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_11" class="named-paragraph-link"><span class="named-paragraph">Show var unused</span><span class="named-paragraph-number">4.11</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">variables</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_14" class="named-paragraph-link"><span class="named-paragraph">Show variable status</span><span class="named-paragraph-number">4.14</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_12" class="named-paragraph-link"><span class="named-paragraph">Show result</span><span class="named-paragraph-number">4.12</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;test&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_13" class="named-paragraph-link"><span class="named-paragraph">Show result of test</span><span class="named-paragraph-number">4.13</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_15" class="named-paragraph-link"><span class="named-paragraph">Fail with error</span><span class="named-paragraph-number">4.15</span></a></span>
<span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">(</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">)</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { pass 1 }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">concatenate</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Propositions::concatenate(RP[1], RP[2]) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">conjoin</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Propositions::conjoin(RP[1], RP[2]) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">copy</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">of</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Propositions::copy(RP[1]) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">negation</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">of</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Propositions::negate(RP[1]) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">unnegation</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">of</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Propositions::unnegate(RP[1]) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">renumbering</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">of</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Binding::renumber(RP[1], NULL) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">binding</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">of</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Binding::bind_existential(RP[1], NULL) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">substitution</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">of</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">=</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_1" class="named-paragraph-link"><span class="named-paragraph">Substitution</span><span class="named-paragraph-number">4.1</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">insert</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">at</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;cardinal-number&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_2" class="named-paragraph-link"><span class="named-paragraph">Insert</span><span class="named-paragraph-number">4.2</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">delete</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;cardinal-number&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">from</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_3" class="named-paragraph-link"><span class="named-paragraph">Delete</span><span class="named-paragraph-number">4.3</span></a></span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">remove</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">universal</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">quantifier</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">from</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Propositions::trim_universal_quantifier(RP[1]) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">remove</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">close</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">domain</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">from</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Propositions::remove_final_close_domain(RP[1], NULL) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;repl-variable&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Propositions::copy(((repl_var *) RP[1])-&gt;val) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;proposition&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { pass 1 }</span>
<span class="Preform-function-syntax">&lt;test&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">is</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">syntactically</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">valid</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { Propositions::is_syntactically_valid(RP[1], test_err), - }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">is</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">well-formed</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { Binding::is_well_formed(RP[1], test_err), - }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">is</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">complex</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { Propositions::is_complex(RP[1]), - }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">contains</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">relation</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { Propositions::contains_binary_predicate(RP[1]), - }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">contains</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">quantifier</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { Propositions::contains_quantifier(RP[1]), - }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">is</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">a</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">group</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { Propositions::is_a_group(RP[1], NEGATION_OPEN_ATOM), - }</span>
<span class="Preform-function-syntax">&lt;proposition&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">&lt;&lt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;atoms&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">&gt;&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { pass 1 }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">&lt;&lt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;quantification&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">&gt;&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { pass 1 }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">&lt;&lt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">&gt;&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, NULL }</span>
<span class="Preform-function-syntax">&lt;atoms&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;quantification&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">\:</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;atoms&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Propositions::concatenate(RP[1], RP[2]) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;quantification&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in&lt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;atoms&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">\:</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;atoms&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="1-dcl.html#SP4_4" class="named-paragraph-link"><span class="named-paragraph">Make domain</span><span class="named-paragraph-number">4.4</span></a></span><span class="Preform-constant-syntax">;</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">not&lt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;atoms&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">not&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Propositions::negate(RP[1]) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;atomic-proposition&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">\^</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;atoms&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Propositions::concatenate(RP[1], RP[2]) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;atomic-proposition&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { pass 1 }</span>
<span class="Preform-function-syntax">&lt;atomic-proposition&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;unary-name&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">(</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">)</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Atoms::unary_PREDICATE_new(RP[1], *((pcalc_term *) RP[2])) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">(</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">==</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">)</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Atoms::binary_PREDICATE_new(R_equality, *((pcalc_term *) RP[1]), *((pcalc_term *) RP[2])) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;relation-name&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">(</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">,</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">)</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Atoms::binary_PREDICATE_new(RP[1], *((pcalc_term *) RP[2]), *((pcalc_term *) RP[3])) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">kind</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">=</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;k-kind&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">(</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">)</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, KindPredicates::new_atom(RP[1], *((pcalc_term *) RP[2])) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">not&lt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Atoms::new(NEGATION_OPEN_ATOM) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">not&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Atoms::new(NEGATION_CLOSE_ATOM) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in&lt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Atoms::new(DOMAIN_OPEN_ATOM) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Atoms::new(DOMAIN_CLOSE_ATOM) }</span>
<span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;pcvar&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Declarations::stash(Terms::new_variable(R[1])) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;cardinal-number&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Declarations::stash(Terms::new_constant(Declarations::number_to_value(W, R[1]))) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;named-function&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">(</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;term&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">)</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Declarations::stash(Terms::new_function(((named_function *) RP[1])-&gt;bp, *((pcalc_term *) RP[2]), ((named_function *) RP[1])-&gt;side)) }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">first</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">cited</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;evaluation&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Declarations::stash(Propositions::get_first_cited_term(RP[1])) }</span>
<span class="Preform-function-syntax">&lt;quantification&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;quantifier&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;pcvar&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { -, Atoms::QUANTIFIER_new(RP[1], R[2], R[1]) }</span>
<span class="Preform-function-syntax">&lt;quantifier&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">ForAll</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { 0, for_all_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">NotAll</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { 0, not_for_all_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">Exists</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { 0, exists_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">DoesNotExist</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { 0, not_exists_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">AllBut</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;cardinal-number&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { R[1], all_but_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">NotAllBut</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;cardinal-number&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { R[1], not_all_but_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">Proportion&gt;=80%</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { R[1], almost_all_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">Proportion&lt;20%</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { R[1], almost_no_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">Proportion&gt;50%</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { R[1], most_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">Proportion&lt;=50%</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { R[1], under_half_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">Card&gt;=</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;cardinal-number&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { R[1], at_least_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">Card&lt;=</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;cardinal-number&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { R[1], at_most_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">Card=</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;cardinal-number&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { R[1], exactly_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">Card&lt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;cardinal-number&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { R[1], less_than_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">Card&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;cardinal-number&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { R[1], more_than_quantifier }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">Card~=</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;cardinal-number&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { R[1], other_than_quantifier }</span>
<span class="Preform-function-syntax">&lt;pcvar&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">x</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { 0, - }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">y</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { 1, - }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">z</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { 2, - }</span>
</pre>
<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_1" class="paragraph-anchor"></a><b>&#167;4.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Substitution</span><span class="named-paragraph-number">4.1</span></span><span class="Preform-comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">V</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[2];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[3];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">bogus</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> ==&gt; { -, </span><a href="../calculus-module/4-bas.html#SP13" class="function-link"><span class="function-syntax">Binding::substitute_term</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">variable</span><span class="plain-syntax">, *</span><span class="identifier-syntax">T</span><span class="plain-syntax">, </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">bogus</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">bogus</span><span class="plain-syntax">) }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_2" class="paragraph-anchor"></a><b>&#167;4.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Insert</span><span class="named-paragraph-number">4.2</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[3];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pos</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="plain-syntax">&lt;</span><span class="identifier-syntax">R</span><span class="plain-syntax">[2]; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) </span><span class="identifier-syntax">pos</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">pos</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)?</span><span class="identifier-syntax">P:</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> ==&gt; { -, </span><a href="../calculus-module/4-prp2.html#SP18" class="function-link"><span class="function-syntax">Propositions::insert_atom</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">pos</span><span class="plain-syntax">, </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1]) }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_3" class="paragraph-anchor"></a><b>&#167;4.3. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Delete</span><span class="named-paragraph-number">4.3</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[2];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pos</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="plain-syntax">&lt;</span><span class="identifier-syntax">R</span><span class="plain-syntax">[1]; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) </span><span class="identifier-syntax">pos</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">pos</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)?</span><span class="identifier-syntax">P:</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> ==&gt; { -, </span><a href="../calculus-module/4-prp2.html#SP19" class="function-link"><span class="function-syntax">Propositions::delete_atom</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">pos</span><span class="plain-syntax">) }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_4" class="paragraph-anchor"></a><b>&#167;4.4. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make domain</span><span class="named-paragraph-number">4.4</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> ==&gt; { -, </span><a href="../calculus-module/4-prp2.html#SP16" class="function-link"><span class="function-syntax">Propositions::quantify_using</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1], </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[2], </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[3]) }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_5" class="paragraph-anchor"></a><b>&#167;4.5. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Create new unary</span><span class="named-paragraph-number">4.5</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><a href="1-dcl.html#SP5" class="function-link"><span class="function-syntax">Declarations::new_unary</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax">&lt;declaration-line&gt;</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">), </span><span class="identifier-syntax">K_number</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"'%&lt;W': ok\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_6" class="paragraph-anchor"></a><b>&#167;4.6. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Create new binary</span><span class="named-paragraph-number">4.6</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><a href="1-dcl.html#SP5" class="function-link"><span class="function-syntax">Declarations::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax">&lt;declaration-line&gt;</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">),</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">K_number</span><span class="plain-syntax">, </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax">&lt;declaration-line&gt;</span><span class="plain-syntax">, </span><span class="constant-syntax">2</span><span class="plain-syntax">), </span><span class="identifier-syntax">K_number</span><span class="plain-syntax">, </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax">&lt;declaration-line&gt;</span><span class="plain-syntax">, </span><span class="constant-syntax">3</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"'%&lt;W': ok\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_7" class="paragraph-anchor"></a><b>&#167;4.7. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Set REPL var</span><span class="named-paragraph-number">4.7</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[2];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">repl_var</span><span class="plain-syntax"> *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">rv</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">val</span><span class="plain-syntax"> = </span><span class="identifier-syntax">P</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"'%&lt;W': %W set to "</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">rv</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">name</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../calculus-module/4-prp2.html#SP7" class="function-link"><span class="function-syntax">Propositions::write</span></a><span class="plain-syntax">(</span><span class="constant-syntax">STDOUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"\n"</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_8" class="paragraph-anchor"></a><b>&#167;4.8. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Show term</span><span class="named-paragraph-number">4.8</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"'%&lt;W': "</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../calculus-module/4-trm.html#SP11" class="function-link"><span class="function-syntax">Terms::write</span></a><span class="plain-syntax">(</span><span class="constant-syntax">STDOUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">T</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"\n"</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_9" class="paragraph-anchor"></a><b>&#167;4.9. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Show const underlying</span><span class="named-paragraph-number">4.9</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"'%&lt;W': "</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">val</span><span class="plain-syntax"> = </span><a href="../calculus-module/4-trm.html#SP8" class="function-link"><span class="function-syntax">Terms::constant_underlying</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">val</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"--"</span><span class="plain-syntax">); </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"'%W'"</span><span class="plain-syntax">, </span><a href="../syntax-module/2-pn.html#SP4" class="function-link"><span class="function-syntax">Node::get_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">val</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"\n"</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_10" class="paragraph-anchor"></a><b>&#167;4.10. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Show var underlying</span><span class="named-paragraph-number">4.10</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="identifier-syntax">T</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"'%&lt;W': "</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">v</span><span class="plain-syntax"> = </span><a href="../calculus-module/4-trm.html#SP8" class="function-link"><span class="function-syntax">Terms::variable_underlying</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">T</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">v</span><span class="plain-syntax"> &lt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"--"</span><span class="plain-syntax">); </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"%c"</span><span class="plain-syntax">, </span><span class="identifier-syntax">pcalc_vars</span><span class="plain-syntax">[</span><span class="identifier-syntax">v</span><span class="plain-syntax">]);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"\n"</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_11" class="paragraph-anchor"></a><b>&#167;4.11. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Show var unused</span><span class="named-paragraph-number">4.11</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"'%&lt;W': "</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">v</span><span class="plain-syntax"> = </span><a href="../calculus-module/4-bas.html#SP5" class="function-link"><span class="function-syntax">Binding::find_unused</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">v</span><span class="plain-syntax"> &lt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"--"</span><span class="plain-syntax">); </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"%c"</span><span class="plain-syntax">, </span><span class="identifier-syntax">pcalc_vars</span><span class="plain-syntax">[</span><span class="identifier-syntax">v</span><span class="plain-syntax">]);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"\n"</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_12" class="paragraph-anchor"></a><b>&#167;4.12. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Show result</span><span class="named-paragraph-number">4.12</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"'%&lt;W': "</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../calculus-module/4-prp2.html#SP7" class="function-link"><span class="function-syntax">Propositions::write</span></a><span class="plain-syntax">(</span><span class="constant-syntax">STDOUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"\n"</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_13" class="paragraph-anchor"></a><b>&#167;4.13. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Show result of test</span><span class="named-paragraph-number">4.13</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"'%&lt;W': "</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">R</span><span class="plain-syntax">[1]) </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"true"</span><span class="plain-syntax">); </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"false"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/foundation-module/4-sm.html#SP8" class="function-link"><span class="function-syntax">Str::len</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">test_err</span><span class="plain-syntax">) &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">" - %S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">test_err</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/4-sm.html#SP15" class="function-link"><span class="function-syntax">Str::clear</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">test_err</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"\n"</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_14" class="paragraph-anchor"></a><b>&#167;4.14. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Show variable status</span><span class="named-paragraph-number">4.14</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">var_states</span><span class="plain-syntax">[26];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">err</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">happy</span><span class="plain-syntax"> = </span><a href="../calculus-module/4-bas.html#SP1" class="function-link"><span class="function-syntax">Binding::determine_status</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">RP</span><span class="plain-syntax">[1], </span><span class="identifier-syntax">var_states</span><span class="plain-syntax">, </span><span class="identifier-syntax">err</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"'%&lt;W':"</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">happy</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">" valid:"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">v</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">v</span><span class="plain-syntax">&lt;26; </span><span class="identifier-syntax">v</span><span class="plain-syntax">++) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">var_states</span><span class="plain-syntax">[</span><span class="identifier-syntax">v</span><span class="plain-syntax">] == </span><span class="constant-syntax">FREE_VST</span><span class="plain-syntax">) </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">" %c free"</span><span class="plain-syntax">, </span><span class="identifier-syntax">pcalc_vars</span><span class="plain-syntax">[</span><span class="identifier-syntax">v</span><span class="plain-syntax">]);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">var_states</span><span class="plain-syntax">[</span><span class="identifier-syntax">v</span><span class="plain-syntax">] == </span><span class="constant-syntax">BOUND_VST</span><span class="plain-syntax">) </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">" %c bound"</span><span class="plain-syntax">, </span><span class="identifier-syntax">pcalc_vars</span><span class="plain-syntax">[</span><span class="identifier-syntax">v</span><span class="plain-syntax">]);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">" invalid: %S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">err</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">err</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"\n"</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP4_15" class="paragraph-anchor"></a><b>&#167;4.15. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Fail with error</span><span class="named-paragraph-number">4.15</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">PRINT</span><span class="plain-syntax">(</span><span class="string-syntax">"Declaration not understood: '%W'\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> ==&gt; { </span><span class="identifier-syntax">fail</span><span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="1-dcl.html#SP4">&#167;4</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>&#167;5. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">bp_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">test_bp_family</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">up_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">test_up_family</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Declarations::new_unary</span><button class="popup" onclick="togglePopup('usagePopup2')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup2">Usage of <span class="code-font"><span class="function-syntax">Declarations::new_unary</span></span>:<br/><a href="1-dcl.html#SP4_5">&#167;4.5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="reserved-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">k0</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">test_up_family</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">test_up_family</span><span class="plain-syntax"> = </span><a href="../calculus-module/2-upf.html#SP1" class="function-link"><span class="function-syntax">UnaryPredicateFamilies::new</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">test_up_family</span><span class="plain-syntax">, </span><span class="constant-syntax">LOG_UPF_MTID</span><span class="plain-syntax">, </span><a href="1-dcl.html#SP5" class="function-link"><span class="function-syntax">Declarations::log_unary</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">named_unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nup</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">named_unary_predicate</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">nup</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">up</span><span class="plain-syntax"> = </span><a href="../calculus-module/2-up.html#SP2" class="function-link"><span class="function-syntax">UnaryPredicates::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">test_up_family</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">nup</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">up</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">assert_kind</span><span class="plain-syntax"> = </span><span class="identifier-syntax">k0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">nup</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">up</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">calling_name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">W</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">nup</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">W</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Declarations::new</span><button class="popup" onclick="togglePopup('usagePopup3')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup3">Usage of <span class="code-font"><span class="function-syntax">Declarations::new</span></span>:<br/><a href="1-dcl.html#SP4_6">&#167;4.6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="reserved-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">k0</span><span class="plain-syntax">, </span><span class="reserved-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">f0</span><span class="plain-syntax">, </span><span class="reserved-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">k1</span><span class="plain-syntax">, </span><span class="reserved-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">f1</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">test_bp_family</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">test_bp_family</span><span class="plain-syntax"> = </span><a href="../calculus-module/3-bpf.html#SP1" class="function-link"><span class="function-syntax">BinaryPredicateFamilies::new</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">bp_term_details</span><span class="plain-syntax"> </span><span class="identifier-syntax">t0</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><a href="../calculus-module/3-bptd.html#SP2" class="function-link"><span class="function-syntax">BPTerms::new</span></a><span class="plain-syntax">(</span><span class="constant-syntax">TERM_DOMAIN_FROM_KIND_FUNCTION</span><span class="plain-syntax">(</span><span class="identifier-syntax">k0</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">bp_term_details</span><span class="plain-syntax"> </span><span class="identifier-syntax">t1</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><a href="../calculus-module/3-bptd.html#SP2" class="function-link"><span class="function-syntax">BPTerms::new</span></a><span class="plain-syntax">(</span><span class="constant-syntax">TERM_DOMAIN_FROM_KIND_FUNCTION</span><span class="plain-syntax">(</span><span class="identifier-syntax">k1</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-sm.html#SP2" class="function-link"><span class="function-syntax">Str::new</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="string-syntax">"%W"</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">binary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">bp</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><a href="../calculus-module/3-bp.html#SP10" class="function-link"><span class="function-syntax">BinaryPredicates::make_pair</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">test_bp_family</span><span class="plain-syntax">, </span><span class="identifier-syntax">t0</span><span class="plain-syntax">, </span><span class="identifier-syntax">t1</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><a href="../calculus-module/3-cs.html#SP5" class="function-link"><span class="function-syntax">Calculus::Schemas::new</span></a><span class="plain-syntax">(</span><span class="string-syntax">"%S(*1, *2)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">),</span>
<span class="plain-syntax"> </span><a href="../words-module/2-wa.html#SP3" class="function-link"><span class="function-syntax">WordAssemblages::from_wording</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">f0n</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">f1n</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">f0n</span><span class="plain-syntax">, </span><span class="string-syntax">"%W"</span><span class="plain-syntax">, </span><span class="identifier-syntax">f0</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">f1n</span><span class="plain-syntax">, </span><span class="string-syntax">"%W"</span><span class="plain-syntax">, </span><span class="identifier-syntax">f1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/foundation-module/4-sm.html#SP19" class="function-link"><span class="function-syntax">Str::ne</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">f0n</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"none"</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">named_function</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nf</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">named_function</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">nf</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">bp</span><span class="plain-syntax"> = </span><span class="identifier-syntax">bp</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">nf</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">f0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">nf</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">side</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="../calculus-module/3-bptd.html#SP6" class="function-link"><span class="function-syntax">BPTerms::set_function</span></a><span class="plain-syntax">(&amp;(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">term_details</span><span class="plain-syntax">[0]),</span>
<span class="plain-syntax"> </span><a href="../calculus-module/3-cs.html#SP5" class="function-link"><span class="function-syntax">Calculus::Schemas::new</span></a><span class="plain-syntax">(</span><span class="string-syntax">"%S(*1)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">f0n</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/foundation-module/4-sm.html#SP19" class="function-link"><span class="function-syntax">Str::ne</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">f1n</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"none"</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">named_function</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nf</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">named_function</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">nf</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">bp</span><span class="plain-syntax"> = </span><span class="identifier-syntax">bp</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">nf</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">f1</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">nf</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">side</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="../calculus-module/3-bptd.html#SP6" class="function-link"><span class="function-syntax">BPTerms::set_function</span></a><span class="plain-syntax">(&amp;(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">term_details</span><span class="plain-syntax">[1]),</span>
<span class="plain-syntax"> </span><a href="../calculus-module/3-cs.html#SP5" class="function-link"><span class="function-syntax">Calculus::Schemas::new</span></a><span class="plain-syntax">(</span><span class="string-syntax">"%S(*1)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">f1n</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">f0n</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">f1n</span><span class="plain-syntax">)</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">stashed</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> </span><span class="identifier-syntax">stashed_terms</span><span class="plain-syntax">[1000];</span>
<span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> *</span><span class="function-syntax">Declarations::stash</span><button class="popup" onclick="togglePopup('usagePopup4')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup4">Usage of <span class="code-font"><span class="function-syntax">Declarations::stash</span></span>:<br/><a href="1-dcl.html#SP4">&#167;4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> </span><span class="identifier-syntax">t</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">stashed</span><span class="plain-syntax"> == </span><span class="constant-syntax">1000</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"too many terms in test case"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">stashed_terms</span><span class="plain-syntax">[</span><span class="identifier-syntax">stashed</span><span class="plain-syntax">] = </span><span class="identifier-syntax">t</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> &amp;(</span><span class="identifier-syntax">stashed_terms</span><span class="plain-syntax">[</span><span class="identifier-syntax">stashed</span><span class="plain-syntax">++]);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="function-syntax">Declarations::number_to_value</span><button class="popup" onclick="togglePopup('usagePopup5')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup5">Usage of <span class="code-font"><span class="function-syntax">Declarations::number_to_value</span></span>:<br/><a href="1-dcl.html#SP4">&#167;4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">n</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="../linguistics-module/1-dgr.html#SP7" class="function-link"><span class="function-syntax">Diagrams::new_UNPARSED_NOUN</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Declarations::log_unary</span><span class="plain-syntax">(</span><span class="reserved-syntax">up_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="constant-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"%W"</span><span class="plain-syntax">, </span><span class="identifier-syntax">up</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">calling_name</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<nav role="progress"><div class="progresscontainer">
<ul class="progressbar"><li class="progressprev"><a href="1-pc.html">&#10094;</a></li><li class="progresscurrentchapter">1</li><li class="progresssection"><a href="1-pc.html">pc</a></li><li class="progresscurrent">dcl</li><li class="progressnextoff">&#10095;</li></ul></div>
</nav><!--End of weave-->
</main>
</body>
</html>
Reference in a new issue View git blame Copy permalink