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423 lines
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423 lines
88 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<title>Going</title>
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<link href="../docs-assets/Breadcrumbs.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<meta name="viewport" content="width=device-width initial-scale=1">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta http-equiv="Content-Language" content="en-gb">
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<link href="../docs-assets/Contents.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<link href="../docs-assets/Progress.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<link href="../docs-assets/Navigation.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<link href="../docs-assets/Fonts.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<link href="../docs-assets/Base.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<script>
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function togglePopup(material_id) {
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var popup = document.getElementById(material_id);
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popup.classList.toggle("show");
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}
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</script>
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<link href="../docs-assets/Popups.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<link href="../docs-assets/Colours.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<link href="../docs-assets/Preform-Colours.css" rel="stylesheet" rev="stylesheet" type="text/css">
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</head>
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<body class="commentary-font">
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<nav role="navigation">
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<h1><a href="../index.html">
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<img src="../docs-assets/Inform.png" height=72">
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</a></h1>
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<ul><li><a href="../index.html">home</a></li>
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</ul><h2>Compiler</h2><ul>
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<li><a href="../structure.html">structure</a></li>
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<li><a href="../inbuildn.html">inbuild</a></li>
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<li><a href="../inform7n.html">inform7</a></li>
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<li><a href="../intern.html">inter</a></li>
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<li><a href="../services.html">services</a></li>
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</ul><h2>Other Tools</h2><ul>
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<li><a href="../inblorbn.html">inblorb</a></li>
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<li><a href="../indocn.html">indoc</a></li>
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<li><a href="../inform6.html">inform6</a></li>
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<li><a href="../inpolicyn.html">inpolicy</a></li>
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<li><a href="../inrtpsn.html">inrtps</a></li>
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</ul><h2>Resources</h2><ul>
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<li><a href="../extensions.html">extensions</a></li>
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<li><a href="../kits.html">kits</a></li>
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</ul><h2>Repository</h2><ul>
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<li><a href="https://github.com/ganelson/inform"><img src="../docs-assets/github.png" height=18> github</a></li>
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</ul><h2>Related Projects</h2><ul>
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<li><a href="../../../inweb/docs/index.html">inweb</a></li>
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<li><a href="../../../intest/docs/index.html">intest</a></li>
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</ul>
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</nav>
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<main role="main">
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<!--Weave of 'Going' generated by Inweb-->
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<div class="breadcrumbs">
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../inform7n.html">Inform7</a></li><li><a href="index.html">if</a></li><li><a href="index.html#4">Chapter 4: Actions</a></li><li><b>Going</b></li></ul></div>
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<p class="purpose">A plugin to provide a little extra support for the "going" action.</p>
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>The "going" action, allowing actors to move from room to room in the spatial
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map of the world model, is by far the most intricately implemented. Reflecting
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that, we provide quite a lot of hard-wired compiler support for it, in the form
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of this plugin.
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</p>
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<p class="commentary">Note that if the actions plugin is not also active, none of the functions
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below will ever be called.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::start</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">GoingPlugin::start</span></span>:<br/>IF Module - <a href="1-im.html#SP5">§5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PluginManager::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">NEW_ACTION_NOTIFY_PLUG</span><span class="plain-syntax">, </span><a href="4-gng.html#SP3" class="function-link"><span class="function-syntax">GoingPlugin::new_action_notify</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PluginManager::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">WRITE_AP_CLAUSE_ID_PLUG</span><span class="plain-syntax">, </span><a href="4-gng.html#SP5" class="function-link"><span class="function-syntax">GoingPlugin::write_clause_ID</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PluginManager::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">ASPECT_OF_AP_CLAUSE_ID_PLUG</span><span class="plain-syntax">, </span><a href="4-gng.html#SP5" class="function-link"><span class="function-syntax">GoingPlugin::aspect</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PluginManager::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">DIVERT_AP_CLAUSE_PLUG</span><span class="plain-syntax">, </span><a href="4-gng.html#SP6" class="function-link"><span class="function-syntax">GoingPlugin::divert_clause_ID</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PluginManager::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">PARSE_AP_CLAUSE_PLUG</span><span class="plain-syntax">, </span><a href="4-gng.html#SP11" class="function-link"><span class="function-syntax">GoingPlugin::parse_clause</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PluginManager::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">VALIDATE_AP_CLAUSE_PLUG</span><span class="plain-syntax">, </span><a href="4-gng.html#SP13" class="function-link"><span class="function-syntax">GoingPlugin::validate</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PluginManager::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">NEW_AP_CLAUSE_PLUG</span><span class="plain-syntax">, </span><a href="4-gng.html#SP7" class="function-link"><span class="function-syntax">GoingPlugin::new_clause</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PluginManager::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">ACT_ON_ANL_ENTRY_OPTIONS_PLUG</span><span class="plain-syntax">, </span><a href="4-gng.html#SP12" class="function-link"><span class="function-syntax">GoingPlugin::act_on_options</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PluginManager::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">COMPARE_AP_SPECIFICITY_PLUG</span><span class="plain-syntax">, </span><a href="4-gng.html#SP16" class="function-link"><span class="function-syntax">GoingPlugin::compare_specificity</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PluginManager::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">SET_PATTERN_MATCH_REQUIREMENTS_PLUG</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">RTGoing::set_pattern_match_requirements</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">PluginManager::plug</span><span class="plain-syntax">(</span><span class="identifier-syntax">COMPILE_PATTERN_MATCH_CLAUSE_PLUG</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">RTGoing::compile_pattern_match_clause</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>Firstly, we have to recognise the action we will treat differently, which
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we do by its (English) name in the Standard Rules:
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</p>
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<pre class="Preform-displayed-code all-displayed-code code-font">
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<span class="Preform-function-syntax"><going-action></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
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<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">going</span>
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</pre>
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<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
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<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b></p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">action_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">going_action</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::new_action_notify</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">GoingPlugin::new_action_notify</span></span>:<br/><a href="4-gng.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">an</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax"><going-action></span><span class="plain-syntax">(</span><a href="4-ann.html#SP5" class="function-link"><span class="function-syntax">ActionNameNames::tensed</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">an</span><span class="plain-syntax">, </span><span class="identifier-syntax">IS_TENSE</span><span class="plain-syntax">))) </span><span class="identifier-syntax">going_action</span><span class="plain-syntax"> = </span><span class="identifier-syntax">an</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>§4. </b>The going action variables are identified at runtime by this ID number:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="function-syntax">GoingPlugin::id</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">GoingPlugin::id</span></span>:<br/><a href="4-gng.html#SP6">§6</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">going_action</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">going_action</span><span class="plain-syntax">-></span><span class="element-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="identifier-syntax">variables_id</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. </b>We will need to handle five special AP clauses. Two have the existing <span class="extract"><span class="extract-syntax">IN_APCA</span></span>
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aspect, and the other three share a new one.
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">GOING_FROM_AP_CLAUSE</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">GOING_TO_AP_CLAUSE</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">GOING_THROUGH_AP_CLAUSE</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">GOING_BY_AP_CLAUSE</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">PUSHING_AP_CLAUSE</span>
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<span class="definition-keyword">enum</span> <span class="constant-syntax">GOING_APCA</span>
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</pre>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::write_clause_ID</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">GoingPlugin::write_clause_ID</span></span>:<br/><a href="4-gng.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">C</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">C</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GOING_FROM_AP_CLAUSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"going-from"</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GOING_TO_AP_CLAUSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"going-to"</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GOING_THROUGH_AP_CLAUSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"going-through"</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GOING_BY_AP_CLAUSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"going-by"</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">PUSHING_AP_CLAUSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"pushing"</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::aspect</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">GoingPlugin::aspect</span></span>:<br/><a href="4-gng.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> *</span><span class="identifier-syntax">A</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">C</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GOING_FROM_AP_CLAUSE:</span><span class="plain-syntax"> *</span><span class="identifier-syntax">A</span><span class="plain-syntax"> = </span><span class="constant-syntax">IN_APCA</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GOING_TO_AP_CLAUSE:</span><span class="plain-syntax"> *</span><span class="identifier-syntax">A</span><span class="plain-syntax"> = </span><span class="constant-syntax">IN_APCA</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GOING_THROUGH_AP_CLAUSE:</span><span class="plain-syntax"> *</span><span class="identifier-syntax">A</span><span class="plain-syntax"> = </span><span class="constant-syntax">GOING_APCA</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GOING_BY_AP_CLAUSE:</span><span class="plain-syntax"> *</span><span class="identifier-syntax">A</span><span class="plain-syntax"> = </span><span class="constant-syntax">GOING_APCA</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">PUSHING_AP_CLAUSE:</span><span class="plain-syntax"> *</span><span class="identifier-syntax">A</span><span class="plain-syntax"> = </span><span class="constant-syntax">GOING_APCA</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>§6. </b>The Standard Rules defines five action variables in sequence for the going
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action, and we pick them up here. Note that we do this by their creation
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sequence and not by their names — so this would all stop working if the
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Standard Rules were rearranged. Caveat editor.
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</p>
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<p class="commentary">If we do spot one of these five magic variables, we tie it to a clause with
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a special ID number of our choice.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::divert_clause_ID</span><button class="popup" onclick="togglePopup('usagePopup6')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup6">Usage of <span class="code-font"><span class="function-syntax">GoingPlugin::divert_clause_ID</span></span>:<br/><a href="4-gng.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">shared_variable</span><span class="plain-syntax"> *</span><span class="identifier-syntax">stv</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> *</span><span class="identifier-syntax">id</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">oin</span><span class="plain-syntax"> = </span><span class="identifier-syntax">SharedVariables::get_owner_iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">stv</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">off</span><span class="plain-syntax"> = </span><span class="identifier-syntax">SharedVariables::get_index</span><span class="plain-syntax">(</span><span class="identifier-syntax">stv</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">going_action</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">oin</span><span class="plain-syntax"> == </span><a href="4-gng.html#SP4" class="function-link"><span class="function-syntax">GoingPlugin::id</span></a><span class="plain-syntax">())) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">off</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax">: *</span><span class="identifier-syntax">id</span><span class="plain-syntax"> = </span><span class="constant-syntax">GOING_FROM_AP_CLAUSE</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span><span class="plain-syntax">: *</span><span class="identifier-syntax">id</span><span class="plain-syntax"> = </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span><span class="plain-syntax">: *</span><span class="identifier-syntax">id</span><span class="plain-syntax"> = </span><span class="constant-syntax">GOING_THROUGH_AP_CLAUSE</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span><span class="plain-syntax">: *</span><span class="identifier-syntax">id</span><span class="plain-syntax"> = </span><span class="constant-syntax">GOING_BY_AP_CLAUSE</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">4</span><span class="plain-syntax">: *</span><span class="identifier-syntax">id</span><span class="plain-syntax"> = </span><span class="constant-syntax">PUSHING_AP_CLAUSE</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>§7. </b>If we create a "going from" or "going to" clause, we set a flag to show that
|
|
they can contain regions or rooms equally well. (Inform's kinds system has no
|
|
protocol for this; it could have, but we don't need this to be visible to authors
|
|
writing source text.)
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::new_clause</span><button class="popup" onclick="togglePopup('usagePopup7')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup7">Usage of <span class="code-font"><span class="function-syntax">GoingPlugin::new_clause</span></span>:<br/><a href="4-gng.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="reserved-syntax">ap_clause</span><span class="plain-syntax"> *</span><span class="identifier-syntax">apoc</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">apoc</span><span class="plain-syntax">-></span><span class="element-syntax">clause_ID</span><span class="plain-syntax"> == </span><span class="constant-syntax">GOING_FROM_AP_CLAUSE</span><span class="plain-syntax">) ||</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">apoc</span><span class="plain-syntax">-></span><span class="element-syntax">clause_ID</span><span class="plain-syntax"> == </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><a href="4-apc.html#SP10" class="function-link"><span class="function-syntax">APClauses::set_opt</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">apoc</span><span class="plain-syntax">, </span><span class="constant-syntax">ALLOW_REGION_AS_ROOM_APCOPT</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP8" class="paragraph-anchor"></a><b>§8. </b>Going nowhere is a special syntax:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::go_nowhere</span><span class="plain-syntax">(</span><span class="reserved-syntax">action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ap</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::set_spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">Rvalues::new_nothing_object_constant</span><span class="plain-syntax">());</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::going_nowhere</span><span class="plain-syntax">(</span><span class="reserved-syntax">action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ap</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">Rvalues::is_nothing_object_constant</span><span class="plain-syntax">(</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</span><span class="plain-syntax">)))</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP9" class="paragraph-anchor"></a><b>§9. </b>And similarly going somewhere:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::go_somewhere</span><span class="plain-syntax">(</span><span class="reserved-syntax">action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ap</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::set_spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">Descriptions::from_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">K_room</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::going_somewhere</span><span class="plain-syntax">(</span><span class="reserved-syntax">action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ap</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">val</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</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">Descriptions::is_kind_like</span><span class="plain-syntax">(</span><span class="identifier-syntax">val</span><span class="plain-syntax">)) && (</span><span class="identifier-syntax">Kinds::eq</span><span class="plain-syntax">(</span><span class="identifier-syntax">Descriptions::explicit_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">val</span><span class="plain-syntax">), </span><span class="identifier-syntax">K_room</span><span class="plain-syntax">)))</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP10" class="paragraph-anchor"></a><b>§10. </b>These are recognised by this Preform nonterminal:
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">NOWHERE_AP_CLAUSE_OPTION</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">SOMEWHERE_AP_CLAUSE_OPTION</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
|
|
</pre>
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><going-action-irregular-operand></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">nowhere</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"> { NOWHERE_AP_CLAUSE_OPTION, - }</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">somewhere</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { SOMEWHERE_AP_CLAUSE_OPTION, - }</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="SP11" class="paragraph-anchor"></a><b>§11. </b>Which we intercept thus, and thus avoid the noun being evaluated, but
|
|
instead setting the appropriate entry options bit:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::parse_clause</span><button class="popup" onclick="togglePopup('usagePopup8')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup8">Usage of <span class="code-font"><span class="function-syntax">GoingPlugin::parse_clause</span></span>:<br/><a href="4-gng.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">an</span><span class="plain-syntax">, </span><span class="reserved-syntax">anl_clause</span><span class="plain-syntax"> *</span><span class="identifier-syntax">c</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> *</span><span class="identifier-syntax">bits</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">c</span><span class="plain-syntax">-></span><span class="element-syntax">clause_ID</span><span class="plain-syntax"> == </span><span class="constant-syntax">NOUN_AP_CLAUSE</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">an</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">an</span><span class="plain-syntax"> == </span><span class="identifier-syntax">going_action</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="function-syntax"><going-action-irregular-operand>(c-></span><span class="element-syntax">clause_text</span><span class="plain-syntax">))) { *</span><span class="identifier-syntax">bits</span><span class="plain-syntax"> |= </span><span class="function-syntax"><<r>></span><span class="plain-syntax">; }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP12" class="paragraph-anchor"></a><b>§12. </b>Options bits which we later pick up here, moving the irregular noun phrase
|
|
into the <span class="extract"><span class="extract-syntax">GOING_TO_AP_CLAUSE</span></span> instead, where we supply our own evaluation:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::act_on_options</span><button class="popup" onclick="togglePopup('usagePopup9')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup9">Usage of <span class="code-font"><span class="function-syntax">GoingPlugin::act_on_options</span></span>:<br/><a href="4-gng.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">anl_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">entry_options</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> *</span><span class="identifier-syntax">fail</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">entry_options</span><span class="plain-syntax"> & </span><span class="constant-syntax">NOWHERE_AP_CLAUSE_OPTION</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP16" class="function-link"><span class="function-syntax">ActionNameLists::get_clause_wording</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="constant-syntax">NOUN_AP_CLAUSE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="4-anl.html#SP19" class="function-link"><span class="function-syntax">ActionNameLists::truncate_clause</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="constant-syntax">NOUN_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="4-anl.html#SP16" class="function-link"><span class="function-syntax">ActionNameLists::has_clause</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</span><span class="plain-syntax">)) *</span><span class="identifier-syntax">fail</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</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><a href="4-anl.html#SP17" class="function-link"><span class="function-syntax">ActionNameLists::set_clause_wording</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</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">anl_clause</span><span class="plain-syntax"> *</span><span class="identifier-syntax">c</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP16" class="function-link"><span class="function-syntax">ActionNameLists::get_clause</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">c</span><span class="plain-syntax">-></span><span class="element-syntax">evaluation</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Rvalues::new_nothing_object_constant</span><span class="plain-syntax">();</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><span class="identifier-syntax">entry_options</span><span class="plain-syntax"> & </span><span class="constant-syntax">SOMEWHERE_AP_CLAUSE_OPTION</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP16" class="function-link"><span class="function-syntax">ActionNameLists::get_clause_wording</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="constant-syntax">NOUN_AP_CLAUSE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="4-anl.html#SP19" class="function-link"><span class="function-syntax">ActionNameLists::truncate_clause</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="constant-syntax">NOUN_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="4-anl.html#SP16" class="function-link"><span class="function-syntax">ActionNameLists::has_clause</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</span><span class="plain-syntax">)) *</span><span class="identifier-syntax">fail</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</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><a href="4-anl.html#SP17" class="function-link"><span class="function-syntax">ActionNameLists::set_clause_wording</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</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">anl_clause</span><span class="plain-syntax"> *</span><span class="identifier-syntax">c</span><span class="plain-syntax"> = </span><a href="4-anl.html#SP16" class="function-link"><span class="function-syntax">ActionNameLists::get_clause</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">entry</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">c</span><span class="plain-syntax">-></span><span class="element-syntax">evaluation</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Descriptions::from_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">K_room</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP13" class="paragraph-anchor"></a><b>§13. </b>Here we perform sanity checks on the clauses.
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</p>
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|
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|
<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::validate</span><button class="popup" onclick="togglePopup('usagePopup10')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup10">Usage of <span class="code-font"><span class="function-syntax">GoingPlugin::validate</span></span>:<br/><a href="4-gng.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">an</span><span class="plain-syntax">, </span><span class="reserved-syntax">anl_clause</span><span class="plain-syntax"> *</span><span class="identifier-syntax">c</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> *</span><span class="identifier-syntax">outcome</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">char</span><span class="plain-syntax"> *</span><span class="identifier-syntax">keyword</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ka</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, *</span><span class="identifier-syntax">kb</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">c</span><span class="plain-syntax">-></span><span class="element-syntax">clause_ID</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GOING_FROM_AP_CLAUSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">keyword</span><span class="plain-syntax"> = </span><span class="string-syntax">"from"</span><span class="plain-syntax">; </span><span class="identifier-syntax">ka</span><span class="plain-syntax"> = </span><span class="identifier-syntax">K_room</span><span class="plain-syntax">; </span><span class="identifier-syntax">kb</span><span class="plain-syntax"> = </span><span class="identifier-syntax">K_region</span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GOING_TO_AP_CLAUSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">keyword</span><span class="plain-syntax"> = </span><span class="string-syntax">"to"</span><span class="plain-syntax">; </span><span class="identifier-syntax">ka</span><span class="plain-syntax"> = </span><span class="identifier-syntax">K_room</span><span class="plain-syntax">; </span><span class="identifier-syntax">kb</span><span class="plain-syntax"> = </span><span class="identifier-syntax">K_region</span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GOING_BY_AP_CLAUSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">keyword</span><span class="plain-syntax"> = </span><span class="string-syntax">"by"</span><span class="plain-syntax">; </span><span class="identifier-syntax">ka</span><span class="plain-syntax"> = </span><span class="identifier-syntax">K_thing</span><span class="plain-syntax">; </span><span class="identifier-syntax">kb</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">GOING_THROUGH_AP_CLAUSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">keyword</span><span class="plain-syntax"> = </span><span class="string-syntax">"through"</span><span class="plain-syntax">; </span><span class="identifier-syntax">ka</span><span class="plain-syntax"> = </span><span class="identifier-syntax">K_door</span><span class="plain-syntax">; </span><span class="identifier-syntax">kb</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">PUSHING_AP_CLAUSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">keyword</span><span class="plain-syntax"> = </span><span class="string-syntax">"with"</span><span class="plain-syntax">; </span><span class="identifier-syntax">ka</span><span class="plain-syntax"> = </span><span class="identifier-syntax">K_thing</span><span class="plain-syntax">; </span><span class="identifier-syntax">kb</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">keyword</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> *</span><span class="identifier-syntax">outcome</span><span class="plain-syntax"> = </span><a href="4-gng.html#SP14" class="function-link"><span class="function-syntax">GoingPlugin::check_clause</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">c</span><span class="plain-syntax">-></span><span class="element-syntax">evaluation</span><span class="plain-syntax">, </span><span class="identifier-syntax">keyword</span><span class="plain-syntax">, </span><span class="identifier-syntax">ka</span><span class="plain-syntax">, </span><span class="identifier-syntax">kb</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
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<p class="commentary firstcommentary"><a id="SP14" class="paragraph-anchor"></a><b>§14. </b>Each clause can be within one of up to two kinds, or else can be "nothing"
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or unspecified:
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</p>
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|
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<pre class="displayed-code all-displayed-code code-font">
|
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<span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">PM_GoingWrongKind_issued_at</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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|
<span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">PM_GoingWithoutObject_issued_at</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::check_clause</span><button class="popup" onclick="togglePopup('usagePopup11')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup11">Usage of <span class="code-font"><span class="function-syntax">GoingPlugin::check_clause</span></span>:<br/><a href="4-gng.html#SP13">§13</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">spec</span><span class="plain-syntax">, </span><span class="reserved-syntax">char</span><span class="plain-syntax"> *</span><span class="identifier-syntax">keyword</span><span class="plain-syntax">, </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ka</span><span class="plain-syntax">, </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">kb</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">spec</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</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">Rvalues::is_nothing_object_constant</span><span class="plain-syntax">(</span><span class="identifier-syntax">spec</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Specifications::is_description_like</span><span class="plain-syntax">(</span><span class="identifier-syntax">spec</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">instance</span><span class="plain-syntax"> *</span><span class="identifier-syntax">oref</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Specifications::object_exactly_described_if_any</span><span class="plain-syntax">(</span><span class="identifier-syntax">spec</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">oref</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">ka</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">Instances::of_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">oref</span><span class="plain-syntax">, </span><span class="identifier-syntax">ka</span><span class="plain-syntax">)) ||</span>
|
|
<span class="plain-syntax"> ((</span><span class="identifier-syntax">kb</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">Instances::of_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">oref</span><span class="plain-syntax">, </span><span class="identifier-syntax">kb</span><span class="plain-syntax">)))) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</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">PM_GoingWrongKind_issued_at</span><span class="plain-syntax"> == </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PM_GoingWrongKind_issued_at</span><span class="plain-syntax"> = </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_source</span><span class="plain-syntax">(1, </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_object</span><span class="plain-syntax">(2, </span><span class="identifier-syntax">oref</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_text</span><span class="plain-syntax">(3, </span><span class="identifier-syntax">keyword</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_kind</span><span class="plain-syntax">(4, </span><span class="identifier-syntax">ka</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_kind</span><span class="plain-syntax">(5, </span><span class="identifier-syntax">Instances::to_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">oref</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">kb</span><span class="plain-syntax">) </span><span class="identifier-syntax">Problems::quote_kind</span><span class="plain-syntax">(6, </span><span class="identifier-syntax">kb</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::handmade_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_GoingWrongKind</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">kb</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_segment</span><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"In the sentence %1, %2 seems to be intended as something the "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"player might be going %3, but this has the wrong kind: %5 "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"rather than %4 or %6."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_segment</span><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"In the sentence %1, %2 seems to be intended as something the player "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"might be going %3, but this has the wrong kind: %5 rather than %4."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_end</span><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</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><span class="identifier-syntax">PM_GoingWithoutObject_issued_at</span><span class="plain-syntax"> == </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PM_GoingWithoutObject_issued_at</span><span class="plain-syntax"> = </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_source</span><span class="plain-syntax">(1, </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_wording</span><span class="plain-syntax">(2, </span><span class="identifier-syntax">Node::get_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">spec</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::quote_text</span><span class="plain-syntax">(3, </span><span class="identifier-syntax">keyword</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::handmade_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_GoingWithoutObject</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_segment</span><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"In the sentence %1, '%2' seems to be intended as something the player "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"might be going %3, but it doesn't make sense in that context."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_end</span><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP15" class="paragraph-anchor"></a><b>§15. </b>Going from, by, through, or with all imply going somewhere rather than nowhere;
|
|
if no "going to" destination is specified, we had better check the destination
|
|
to make sure it actually exists. So this can be used to see if the need arises:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::need_to_check_destination_exists</span><span class="plain-syntax">(</span><span class="reserved-syntax">action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ap</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_TO_AP_CLAUSE</span><span class="plain-syntax">) == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> ((</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_FROM_AP_CLAUSE</span><span class="plain-syntax">) != </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) ||</span>
|
|
<span class="plain-syntax"> (</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_BY_AP_CLAUSE</span><span class="plain-syntax">) != </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) ||</span>
|
|
<span class="plain-syntax"> (</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_THROUGH_AP_CLAUSE</span><span class="plain-syntax">) != </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) ||</span>
|
|
<span class="plain-syntax"> (</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="constant-syntax">PUSHING_AP_CLAUSE</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">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP16" class="paragraph-anchor"></a><b>§16. </b>Specificity checking for the "going" action is quite complicated. We want to
|
|
count "going from X" and "going in X" as being essentially the same requirement,
|
|
giving neither clause priority over the other, which means some fiddly crossover
|
|
code if <span class="extract"><span class="extract-syntax">ap1</span></span> has one and <span class="extract"><span class="extract-syntax">ap2</span></span> the other.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">GoingPlugin::compare_specificity</span><button class="popup" onclick="togglePopup('usagePopup12')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup12">Usage of <span class="code-font"><span class="function-syntax">GoingPlugin::compare_specificity</span></span>:<br/><a href="4-gng.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="reserved-syntax">action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ap2</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> *</span><span class="identifier-syntax">rv</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">ignore_in</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Specifications::law</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"III.2.4 - Action/Where/Other Optional Clauses"</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">rct1</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP16" class="function-link"><span class="function-syntax">APClauses::number_with_aspect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_APCA</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">rct2</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP16" class="function-link"><span class="function-syntax">APClauses::number_with_aspect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap2</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_APCA</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">rct1</span><span class="plain-syntax"> > </span><span class="identifier-syntax">rct2</span><span class="plain-syntax">) { *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">; }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">rct1</span><span class="plain-syntax"> < </span><span class="identifier-syntax">rct2</span><span class="plain-syntax">) { *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = -1; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">; }</span>
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<span class="plain-syntax"> *</span><span class="identifier-syntax">ignore_in</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP19" class="function-link"><span class="function-syntax">APClauses::cmp_clause</span></a><span class="plain-syntax">(</span><span class="constant-syntax">PUSHING_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap2</span><span class="plain-syntax">); </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (*</span><span class="identifier-syntax">rv</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP19" class="function-link"><span class="function-syntax">APClauses::cmp_clause</span></a><span class="plain-syntax">(</span><span class="constant-syntax">GOING_BY_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap2</span><span class="plain-syntax">); </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (*</span><span class="identifier-syntax">rv</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP19" class="function-link"><span class="function-syntax">APClauses::cmp_clause</span></a><span class="plain-syntax">(</span><span class="constant-syntax">GOING_THROUGH_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap2</span><span class="plain-syntax">); </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (*</span><span class="identifier-syntax">rv</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">Specifications::law</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"III.2.2 - Action/Where/Room Where Action Takes Place"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rct1</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP16" class="function-link"><span class="function-syntax">APClauses::number_with_aspect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="constant-syntax">IN_APCA</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rct2</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP16" class="function-link"><span class="function-syntax">APClauses::number_with_aspect</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap2</span><span class="plain-syntax">, </span><span class="constant-syntax">IN_APCA</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">rct1</span><span class="plain-syntax"> > </span><span class="identifier-syntax">rct2</span><span class="plain-syntax">) { *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">; }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">rct1</span><span class="plain-syntax"> < </span><span class="identifier-syntax">rct2</span><span class="plain-syntax">) { *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = -1; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">; }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">suspend_usual_from_and_room</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_FROM_AP_CLAUSE</span><span class="plain-syntax">)) &&</span>
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<span class="plain-syntax"> (</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="constant-syntax">IN_AP_CLAUSE</span><span class="plain-syntax">) == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) &&</span>
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<span class="plain-syntax"> (</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap2</span><span class="plain-syntax">, </span><span class="constant-syntax">IN_AP_CLAUSE</span><span class="plain-syntax">)) &&</span>
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<span class="plain-syntax"> (</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap2</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_FROM_AP_CLAUSE</span><span class="plain-syntax">) == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP19" class="function-link"><span class="function-syntax">APClauses::cmp_clauses</span></a><span class="plain-syntax">(</span><span class="constant-syntax">GOING_FROM_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="constant-syntax">IN_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap2</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (*</span><span class="identifier-syntax">rv</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">suspend_usual_from_and_room</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap2</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_FROM_AP_CLAUSE</span><span class="plain-syntax">)) &&</span>
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<span class="plain-syntax"> (</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap2</span><span class="plain-syntax">, </span><span class="constant-syntax">IN_AP_CLAUSE</span><span class="plain-syntax">) == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) &&</span>
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<span class="plain-syntax"> (</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="constant-syntax">IN_AP_CLAUSE</span><span class="plain-syntax">)) &&</span>
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<span class="plain-syntax"> (</span><a href="4-apc.html#SP7" class="function-link"><span class="function-syntax">APClauses::spec</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_FROM_AP_CLAUSE</span><span class="plain-syntax">) == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP19" class="function-link"><span class="function-syntax">APClauses::cmp_clauses</span></a><span class="plain-syntax">(</span><span class="constant-syntax">IN_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="constant-syntax">GOING_FROM_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap2</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (*</span><span class="identifier-syntax">rv</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">suspend_usual_from_and_room</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">suspend_usual_from_and_room</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP19" class="function-link"><span class="function-syntax">APClauses::cmp_clause</span></a><span class="plain-syntax">(</span><span class="constant-syntax">GOING_FROM_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap2</span><span class="plain-syntax">); </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (*</span><span class="identifier-syntax">rv</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP19" class="function-link"><span class="function-syntax">APClauses::cmp_clause</span></a><span class="plain-syntax">(</span><span class="constant-syntax">IN_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap2</span><span class="plain-syntax">); </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (*</span><span class="identifier-syntax">rv</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> *</span><span class="identifier-syntax">rv</span><span class="plain-syntax"> = </span><a href="4-apc.html#SP19" class="function-link"><span class="function-syntax">APClauses::cmp_clause</span></a><span class="plain-syntax">(</span><span class="constant-syntax">GOING_TO_AP_CLAUSE</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap1</span><span class="plain-syntax">, </span><span class="identifier-syntax">ap2</span><span class="plain-syntax">); </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (*</span><span class="identifier-syntax">rv</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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