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<!--Weave of 'New Relation Requests' 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">assertions</a></li><li><a href="index.html#3">Chapter 3: Requests</a></li><li><b>New Relation Requests</b></li></ul></div>
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<p class="purpose">Special sentences for creating new relations.</p>
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<ul class="toc"><li><a href="3-nrr.html#SP5">§5. Creation, Stage II</a></li><li><a href="3-nrr.html#SP5_1">§5.1. The parsing phase</a></li><li><a href="3-nrr.html#SP5_3">§5.3. The completion phase</a></li><li><a href="3-nrr.html#SP6">§6. Storing relations</a></li><li><a href="3-nrr.html#SP8">§8. Registering names of relations</a></li></ul><hr class="tocbar">
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>The following reads sentences like:
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</p>
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<blockquote>
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<p>Acquaintance relates people to each other.</p>
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</blockquote>
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<p class="commentary">Note that we take at least minimal action on this as soon as we detect it,
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in the pre-pass: this is important because it may affect the classification
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of subsequent sentences, which also happens in the pre-pass.
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</p>
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<p class="commentary">The <span class="extract"><span class="extract-syntax">:relations</span></span> set of test cases may be useful when tweaking the code below.
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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"><new-relation-sentence-subject></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-function-syntax"><article></span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><np-unparsed></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"> { pass 2 }</span>
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<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><np-unparsed></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { pass 1 }</span>
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<span class="Preform-function-syntax"><new-relation-sentence-object></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-function-syntax"><np-unparsed></span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">to</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><np-unparsed></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { TRUE, Node::compose(RP[1], RP[2]) }</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="SP2" class="paragraph-anchor"></a><b>§2. </b></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">RelationRequests::new_relation_SMF</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">RelationRequests::new_relation_SMF</span></span>:<br/>Booting Verbs - <a href="2-bv.html#SP1_3">§1.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">task</span><span class="plain-syntax">, </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">V</span><span class="plain-syntax">, </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> *</span><span class="identifier-syntax">NPs</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">SW</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">NPs</span><span class="plain-syntax">)?(</span><span class="identifier-syntax">NPs</span><span class="plain-syntax">[0]):</span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">OW</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">NPs</span><span class="plain-syntax">)?(</span><span class="identifier-syntax">NPs</span><span class="plain-syntax">[1]):</span><span class="identifier-syntax">EMPTY_WORDING</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">task</span><span class="plain-syntax">) { </span><span class="comment-syntax"> "Knowledge relates various people to various things."</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">ACCEPT_SMFT:</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"><new-relation-sentence-object></span><span class="plain-syntax">(</span><span class="identifier-syntax">OW</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">O</span><span class="plain-syntax"> = </span><span class="function-syntax"><<rp>></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="function-syntax"><new-relation-sentence-subject></span><span class="plain-syntax">(</span><span class="identifier-syntax">SW</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">V</span><span class="plain-syntax">-></span><span class="element-syntax">next</span><span class="plain-syntax"> = </span><span class="function-syntax"><<rp>></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">V</span><span class="plain-syntax">-></span><span class="element-syntax">next</span><span class="plain-syntax">-></span><span class="element-syntax">next</span><span class="plain-syntax"> = </span><span class="identifier-syntax">O</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">RW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Node::get_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">V</span><span class="plain-syntax">-></span><span class="element-syntax">next</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"><relation-name></span><span class="plain-syntax">(</span><span class="identifier-syntax">RW</span><span class="plain-syntax">))</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(),</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_RelationExists</span><span class="plain-syntax">),</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"that relation already exists"</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"and cannot have its definition amended now."</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::length</span><span class="plain-syntax">(</span><span class="identifier-syntax">RW</span><span class="plain-syntax">) > </span><span class="identifier-syntax">MAX_WORDS_IN_ASSEMBLAGE</span><span class="plain-syntax">-4)</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(),</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_RelationNameTooLong</span><span class="plain-syntax">),</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"this is too long a name for a single relation to have"</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"and would become unwieldy."</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">Node::set_new_relation_here</span><span class="plain-syntax">(</span><span class="identifier-syntax">V</span><span class="plain-syntax">-></span><span class="element-syntax">next</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><a href="8-er.html#SP5" class="function-link"><span class="function-syntax">ExplicitRelations::make_pair_sketchily</span></a><span class="plain-syntax">(</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">WordAssemblages::from_wording</span><span class="plain-syntax">(</span><span class="identifier-syntax">RW</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">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">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">PASS_1_SMFT:</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">binary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">bp</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Node::get_new_relation_here</span><span class="plain-syntax">(</span><span class="identifier-syntax">V</span><span class="plain-syntax">-></span><span class="element-syntax">next</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">bp</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP2_3" class="named-paragraph-link"><span class="named-paragraph">Make the request</span><span class="named-paragraph-number">2.3</span></a></span><span class="plain-syntax">;</span>
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<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>
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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="SP2_1" class="paragraph-anchor"></a><b>§2.1. </b>We won't create the relation here, only submit a request in the form of
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the following object. The terms 0 and 1 represent the part before the "to"
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and after; in "relates people to each other", they would derive from "people"
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and "each other" respectively.
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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">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">relation_request</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">RW</span><span class="plain-syntax">; </span><span class="comment-syntax"> name of the relation</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">relation_request_term</span><span class="plain-syntax"> </span><span class="identifier-syntax">terms</span><span class="plain-syntax">[2];</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">CONW</span><span class="plain-syntax">; </span><span class="comment-syntax"> condition text</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">frf</span><span class="plain-syntax">; </span><span class="comment-syntax"> has fast route-finding</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">symmetric</span><span class="plain-syntax">; </span><span class="comment-syntax"> a symmetric relation?</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">equivalence</span><span class="plain-syntax">; </span><span class="comment-syntax"> an equivalence ("in groups") relation?</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">relation_request</span><span class="plain-syntax">;</span>
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<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">relation_request_term</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">domain</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">CALLW</span><span class="plain-syntax">; </span><span class="comment-syntax"> "calling" name</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">unique</span><span class="plain-syntax">; </span><span class="comment-syntax"> </span><span class="extract"><span class="extract-syntax">TRUE</span></span><span class="comment-syntax"> for one, </span><span class="extract"><span class="extract-syntax">FALSE</span></span><span class="comment-syntax"> for various, </span><span class="extract"><span class="extract-syntax">NOT_APPLICABLE</span></span><span class="comment-syntax"> if not yet known</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">relation_request_term</span><span class="plain-syntax">;</span>
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</pre>
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<ul class="endnotetexts"><li>The structure relation_request is accessed in 8/kpr, 8/tap, 8/tcp and here.</li><li>The structure relation_request_term is accessed in 8/aa, 8/am, 8/amd and here.</li></ul>
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<p class="commentary firstcommentary"><a id="SP2_2" class="paragraph-anchor"></a><b>§2.2. </b>Syntax on the left (term 0) and right (term 1) slightly differs. The integer
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result is a bitmap of these:
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">FRF_RBIT</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">ONE_RBIT</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">VAR_RBIT</span><span class="plain-syntax"> </span><span class="constant-syntax">4</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">ANOTHER_RBIT</span><span class="plain-syntax"> </span><span class="constant-syntax">8</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">EACHOTHER_RBIT</span><span class="plain-syntax"> </span><span class="constant-syntax">16</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">GROUPS_RBIT</span><span class="plain-syntax"> </span><span class="constant-syntax">32</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">WHEN_RBIT</span><span class="plain-syntax"> </span><span class="constant-syntax">64</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">CALLED_RBIT</span><span class="plain-syntax"> </span><span class="constant-syntax">128</span>
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</pre>
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<pre class="Preform-displayed-code all-displayed-code code-font">
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<span class="Preform-function-syntax"><relates-sentence-left-object></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-function-syntax"><relation-term-basic></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">(</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">called</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">)</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { R[1] | CALLED_RBIT, - }</span>
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<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><relation-term-basic></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { pass 1 }</span>
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<span class="Preform-function-syntax"><relates-sentence-right-object></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-function-syntax"><relation-term-right-named></span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">with</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">fast</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">route-finding</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"> { R[1] | FRF_RBIT, - }</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><relation-term-right-named></span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">when</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { R[1] | WHEN_RBIT, - }</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><relation-term-right-named></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { pass 1 }</span>
|
|
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<span class="Preform-function-syntax"><relation-term-right-named></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-function-syntax"><relation-term-right></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">(</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">called</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">)</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { R[1] | CALLED_RBIT, - }</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><relation-term-right></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { pass 1 }</span>
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|
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<span class="Preform-function-syntax"><relation-term-right></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">{another}</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"> { ANOTHER_RBIT, - }</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">{each</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">other}</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"> { EACHOTHER_RBIT, - }</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">{each</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">other</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">in</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">groups}</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"> { GROUPS_RBIT, - }</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><relation-term-basic></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { pass 1 }</span>
|
|
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|
<span class="Preform-function-syntax"><relation-term-basic></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">one</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { ONE_RBIT, - }</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">various</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> { VAR_RBIT, - }</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"> { 0, - }</span>
|
|
</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="SP2_3" class="paragraph-anchor"></a><b>§2.3. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make the request</span><span class="named-paragraph-number">2.3</span></span><span class="Preform-comment-syntax"> =</span>
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</p>
|
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<pre class="displayed-code all-displayed-code code-font">
|
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<span class="plain-syntax"> </span><span class="reserved-syntax">relation_request</span><span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">RW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Node::get_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">V</span><span class="plain-syntax">-></span><span class="element-syntax">next</span><span class="plain-syntax">); </span><span class="comment-syntax"> relation name</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">CONW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">frf</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">RR</span><span class="plain-syntax">.</span><span class="element-syntax">symmetric</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">RR</span><span class="plain-syntax">.</span><span class="element-syntax">equivalence</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">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">TW</span><span class="plain-syntax">[2];</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">bitmap</span><span class="plain-syntax">[2]; </span><span class="comment-syntax"> bitmap of the </span><span class="extract"><span class="extract-syntax">*_RBIT</span></span><span class="comment-syntax"> values</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP2_3_1" class="named-paragraph-link"><span class="named-paragraph">Parse left and right object phrases</span><span class="named-paragraph-number">2.3.1</span></a></span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP2_3_2" class="named-paragraph-link"><span class="named-paragraph">Find term multiplicities and use of fast route-finding</span><span class="named-paragraph-number">2.3.2</span></a></span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP2_3_3" class="named-paragraph-link"><span class="named-paragraph">Detect use of symmetry in definition of second term</span><span class="named-paragraph-number">2.3.3</span></a></span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP2_3_4" class="named-paragraph-link"><span class="named-paragraph">Detect use of a condition for a test-only relation</span><span class="named-paragraph-number">2.3.4</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP2_3_5" class="named-paragraph-link"><span class="named-paragraph">Vet the use of callings for the terms of the relation</span><span class="named-paragraph-number">2.3.5</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP2_3_6" class="named-paragraph-link"><span class="named-paragraph">Find the left and right domain kinds</span><span class="named-paragraph-number">2.3.6</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP2_3_7" class="named-paragraph-link"><span class="named-paragraph">Infer uniqueness if not specified</span><span class="named-paragraph-number">2.3.7</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">RELATION_DEFINITIONS</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="string-syntax">"Relation defn: '%W' %s %s %s (%s %u, %s %u)\n"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">RW</span><span class="plain-syntax">,</span>
|
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<span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">symmetric</span><span class="plain-syntax">)?</span><span class="string-syntax">"symmetric"</span><span class="plain-syntax">:</span><span class="string-syntax">"asymmetric"</span><span class="plain-syntax">,</span>
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|
<span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">equivalence</span><span class="plain-syntax">)?</span><span class="string-syntax">"equivalence"</span><span class="plain-syntax">:</span><span class="string-syntax">"non-equivalence"</span><span class="plain-syntax">,</span>
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|
<span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">frf</span><span class="plain-syntax">)?</span><span class="string-syntax">"frf"</span><span class="plain-syntax">:</span><span class="string-syntax">"no-frf"</span><span class="plain-syntax">,</span>
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|
<span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax">)?</span><span class="string-syntax">"one"</span><span class="plain-syntax">:</span><span class="string-syntax">"various"</span><span class="plain-syntax">, </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax">)?</span><span class="string-syntax">"one"</span><span class="plain-syntax">:</span><span class="string-syntax">"various"</span><span class="plain-syntax">, </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="3-nrr.html#SP5" class="function-link"><span class="function-syntax">RelationRequests::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">, &</span><span class="identifier-syntax">RR</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP2">§2</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP2_3_1" class="paragraph-anchor"></a><b>§2.3.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Parse left and right object phrases</span><span class="named-paragraph-number">2.3.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
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|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="function-syntax"><relates-sentence-left-object>(Node::get_text(V->next-></span><span class="element-syntax">next</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bitmap</span><span class="plain-syntax">[0] = </span><span class="function-syntax"><<r>></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">CALLW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">; </span><span class="comment-syntax"> left term "calling" name</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">bitmap</span><span class="plain-syntax">[0] & </span><span class="constant-syntax">CALLED_RBIT</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">CALLW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax"><relates-sentence-left-object></span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TW</span><span class="plain-syntax">[0] = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax"><relation-term-basic></span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NOT_APPLICABLE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</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="function-syntax"><relates-sentence-right-object>(Node::get_text(V->next->next-></span><span class="element-syntax">next</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bitmap</span><span class="plain-syntax">[1] = </span><span class="function-syntax"><<r>></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">CALLW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">; </span><span class="comment-syntax"> right term "calling" name</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">bitmap</span><span class="plain-syntax">[1] & </span><span class="constant-syntax">CALLED_RBIT</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">CALLW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax"><relation-term-right-named></span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TW</span><span class="plain-syntax">[1] = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax"><relation-term-basic></span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NOT_APPLICABLE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">bitmap</span><span class="plain-syntax">[1] & </span><span class="constant-syntax">WHEN_RBIT</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">CONW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax"><relates-sentence-right-object></span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP2_3">§2.3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP2_3_2" class="paragraph-anchor"></a><b>§2.3.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Find term multiplicities and use of fast route-finding</span><span class="named-paragraph-number">2.3.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">bitmap</span><span class="plain-syntax">[0] & </span><span class="constant-syntax">ONE_RBIT</span><span class="plain-syntax">) </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</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">bitmap</span><span class="plain-syntax">[0] & </span><span class="constant-syntax">VAR_RBIT</span><span class="plain-syntax">) </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">bitmap</span><span class="plain-syntax">[1] & </span><span class="constant-syntax">ONE_RBIT</span><span class="plain-syntax">) </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</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">bitmap</span><span class="plain-syntax">[1] & </span><span class="constant-syntax">VAR_RBIT</span><span class="plain-syntax">) </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">bitmap</span><span class="plain-syntax">[1] & </span><span class="constant-syntax">FRF_RBIT</span><span class="plain-syntax">) </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">frf</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">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">frf</span><span class="plain-syntax"> && (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax"> != </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax"> != </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_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_FRFUnavailable</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"fast route-finding is only possible with various-to-various "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"relations"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"though this doesn't matter because with other relations the "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"standard route-finding algorithm is efficient already."</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>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP2_3">§2.3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP2_3_3" class="paragraph-anchor"></a><b>§2.3.3. </b>The second term can be given in several special ways to indicate symmetry
|
|
between the two terms. This is more than a declaration that the left and
|
|
right terms belong to the same domain set (though that is true): it says
|
|
that \(R(x, y)\) is true if and only if \(R(y, x)\) is true.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Detect use of symmetry in definition of second term</span><span class="named-paragraph-number">2.3.3</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">specified_one</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</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">bitmap</span><span class="plain-syntax">[1] & </span><span class="constant-syntax">ANOTHER_RBIT</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">symmetric</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">; </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">; </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</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">bitmap</span><span class="plain-syntax">[1] & </span><span class="constant-syntax">EACHOTHER_RBIT</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">symmetric</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">; </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">; </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</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="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">bitmap</span><span class="plain-syntax">[1] & </span><span class="constant-syntax">GROUPS_RBIT</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">symmetric</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">; </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">; </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">equivalence</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">specified_one</span><span class="plain-syntax"> == </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_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_BothOneAndMany</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"the left-hand term in this relation seems to be both 'one' thing "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"and also many things"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"given the mention of 'each other'. Try removing the 'one'."</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>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP2_3">§2.3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP2_3_4" class="paragraph-anchor"></a><b>§2.3.4. </b>When a relation is said to hold depending on a condition to be tested at
|
|
run-time, it is meaningless to tell Inform anything about the uniqueness of
|
|
terms in the domain: a relation might be one-to-one at the start of play
|
|
but become various-to-various later on, as the outcomes of these tests
|
|
change. So we reject any such misleading syntax.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Detect use of a condition for a test-only relation</span><span class="named-paragraph-number">2.3.4</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">bitmap</span><span class="plain-syntax">[1] & </span><span class="constant-syntax">WHEN_RBIT</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">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax"> != </span><span class="identifier-syntax">NOT_APPLICABLE</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax"> != </span><span class="identifier-syntax">NOT_APPLICABLE</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_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_OneOrVariousWithWhen</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"this relation is a mixture of different syntaxes"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"and must be simplified. If it is going to specify 'one' or "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"'various' then it cannot also say 'when' the relation holds."</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>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP2_3">§2.3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP2_3_5" class="paragraph-anchor"></a><b>§2.3.5. </b>To give a name to one term implies some degree of uniqueness about it.
|
|
But that only makes sense if there is indeed some uniqueness involved,
|
|
because otherwise it is unclear what the name refers to. Who is "the
|
|
greeter of the Queen of Sheba" given the following definition?
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>Acquaintance relates various people (called the greeter) to various people.</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">Because of that, callings are only allowed in certain circumstances. An
|
|
exception is made — that is, they are always allowed — where the relation
|
|
tests a given condition, because then the names identify the terms, e.g.,
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>Divisibility relates a number (called N) to a number (called M) when the remainder after dividing M by N is 0.</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary">Here the names "N" and "M" unambiguously refer to the terms being tested
|
|
at this moment, and have no currency beyond that context.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Vet the use of callings for the terms of the relation</span><span class="named-paragraph-number">2.3.5</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::empty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">CONW</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">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">))) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_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_CantCallLeft</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"the left-hand term of this relation is not unique"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"so you cannot assign a name to it using 'called'."</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>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">))) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_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_CantCallRight</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"the right-hand term of this relation is not unique"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"so you cannot assign a name to it using 'called'."</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>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">)) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">))) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_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_CantCallBoth</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"the terms of the relation can't be named on both sides at once"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"and because of that it's best to use a single even-handed name: "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"for instance, 'Marriage relates one person to another (called "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"the spouse).' rather than 'Employment relates one person (called "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"the boss) to one person (called the underling).'"</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>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">symmetric</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">))) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_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_OneToOneMiscalled</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"with a one-to-one relation which is not symmetrical "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"only the left-hand item can be given a name using 'called'"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"so this needs rephrasing to name the left in terms of the right "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"rather than vice versa. For instance, 'Transmission relates "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"one remote to one gadget (called the target).' should be "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"rephrased as 'Transmission relates one gadget (called the "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"target) to one remote.' It will then be possible to talk about "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"'the gadget of' any given remote."</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>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP2_3">§2.3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP2_3_6" class="paragraph-anchor"></a><b>§2.3.6. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Find the left and right domain kinds</span><span class="named-paragraph-number">2.3.6</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax"> = </span><a href="3-nrr.html#SP3" class="function-link"><span class="function-syntax">RelationRequests::parse_term</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">TW</span><span class="plain-syntax">[0], </span><span class="string-syntax">"left"</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">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">symmetric</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax"> = </span><a href="3-nrr.html#SP3" class="function-link"><span class="function-syntax">RelationRequests::parse_term</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">TW</span><span class="plain-syntax">[1], </span><span class="string-syntax">"right"</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">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</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>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP2_3">§2.3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP2_3_7" class="paragraph-anchor"></a><b>§2.3.7. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Infer uniqueness if not specified</span><span class="named-paragraph-number">2.3.7</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NOT_APPLICABLE</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</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">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">)) || (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</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">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NOT_APPLICABLE</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="identifier-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</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">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">)) || (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">.</span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP2_3">§2.3</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b>A term is specified as a kind:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="function-syntax">RelationRequests::parse_term</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">RelationRequests::parse_term</span></span>:<br/><a href="3-nrr.html#SP2_3_6">§2.3.6</a></span></button><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><span class="reserved-syntax">char</span><span class="plain-syntax"> *</span><span class="identifier-syntax">side</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax"><k-kind-articled></span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="function-syntax"><<rp>></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">W</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">side</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_RelatedKindsUnknown</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 relation definition %1, I am unable to understand the %3-hand "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"side -- I was expecting that %2 would be either the name of a kind, "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"or the name of a kind of value, but it wasn't either of those."</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">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>§4. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">by_function_bp_data</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">condition_defn_text</span><span class="plain-syntax">; </span><span class="comment-syntax"> ...unless this I7 condition is used instead</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">bp_by_routine_iname</span><span class="plain-syntax">; </span><span class="comment-syntax"> routine to determine</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
|
|
<span class="plain-syntax">} </span><span class="reserved-syntax">by_function_bp_data</span><span class="plain-syntax">;</span>
|
|
|
|
<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">equivalence_bp_data</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">equivalence_partition</span><span class="plain-syntax">; </span><span class="comment-syntax"> (if right way) partition array of equivalence classes</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
|
|
<span class="plain-syntax">} </span><span class="reserved-syntax">equivalence_bp_data</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>The structure by_function_bp_data is private to this section.</li><li>The structure equivalence_bp_data is private to this section.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. Creation, Stage II. </b>Altogether, the Inform user is allowed to define some eight different forms
|
|
of relation. The code below is an attempt to find whatever common ground
|
|
can be found from these different outcomes, but inevitably ends up
|
|
splitting into cases.
|
|
</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">RelationRequests::new</span><button class="popup" onclick="togglePopup('usagePopup3')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup3">Usage of <span class="code-font"><span class="function-syntax">RelationRequests::new</span></span>:<br/><a href="3-nrr.html#SP2_3">§2.3</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">binary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">bp</span><span class="plain-syntax">, </span><span class="reserved-syntax">relation_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">RR</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">binary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">bpr</span><span class="plain-syntax"> = </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">reversal</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prn</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> used for run-time storage of this relation</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> the I6 identifier for this property</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> what kind, if any, might be stored in it</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">inference_subject</span><span class="plain-syntax"> *</span><span class="identifier-syntax">storage_infs</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> summing these up</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">explicit_bp_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ED</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_explicit_bp_data</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">family_specific</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">dynamic</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">, </span><span class="comment-syntax"> use dynamic memory allocation for storage?</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">provide_prn</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">, </span><span class="comment-syntax"> allocate the storage property to the kind?</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">calling_made</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">; </span><span class="comment-syntax"> one of the terms has been given a name</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">bp</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"BP in relation not initially parsed"</span><span class="plain-syntax">);</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_1" class="named-paragraph-link"><span class="named-paragraph">Parse the classification variables and use them to fill in the BP term details</span><span class="named-paragraph-number">5.1</span></a></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">RR</span><span class="plain-syntax">-></span><span class="element-syntax">frf</span><span class="plain-syntax">) </span><span class="identifier-syntax">RTRelations::use_frf</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</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">prn</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ED</span><span class="plain-syntax">-></span><span class="element-syntax">i6_storage_property</span><span class="plain-syntax"> = </span><span class="identifier-syntax">prn</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ValueProperties::set_stored_relation</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">bp</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">dynamic</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><a href="8-er.html#SP4" class="function-link"><span class="function-syntax">ExplicitRelations::store_dynamically</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="8-er.html#SP4" class="function-link"><span class="function-syntax">ExplicitRelations::store_dynamically</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">bpr</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTRelations::initialiser_iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTRelations::mark_as_needed</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</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">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">CONW</span><span class="plain-syntax">)) </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_11" class="named-paragraph-link"><span class="named-paragraph">Complete as a relation-by-routine BP</span><span class="named-paragraph-number">5.11</span></a></span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">equivalence</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_10" class="named-paragraph-link"><span class="named-paragraph">Complete as an equivalence-relation BP</span><span class="named-paragraph-number">5.10</span></a></span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</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">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</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">RR</span><span class="plain-syntax">-></span><span class="element-syntax">symmetric</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_8" class="named-paragraph-link"><span class="named-paragraph">Complete as a symmetric one-to-one BP</span><span class="named-paragraph-number">5.8</span></a></span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_4" class="named-paragraph-link"><span class="named-paragraph">Complete as an asymmetric one-to-one BP</span><span class="named-paragraph-number">5.4</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_5" class="named-paragraph-link"><span class="named-paragraph">Complete as a one-to-various BP</span><span class="named-paragraph-number">5.5</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_6" class="named-paragraph-link"><span class="named-paragraph">Complete as a various-to-one BP</span><span class="named-paragraph-number">5.6</span></a></span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">symmetric</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_9" class="named-paragraph-link"><span class="named-paragraph">Complete as a symmetric various-to-various BP</span><span class="named-paragraph-number">5.9</span></a></span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_7" class="named-paragraph-link"><span class="named-paragraph">Complete as an asymmetric various-to-various BP</span><span class="named-paragraph-number">5.7</span></a></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">dynamic</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">calling_made</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_2" class="named-paragraph-link"><span class="named-paragraph">Issue a problem message since this won't be stored in a property</span><span class="named-paragraph-number">5.2</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_13" class="named-paragraph-link"><span class="named-paragraph">Override with dynamic allocation schemata</span><span class="named-paragraph-number">5.13</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TheHeap::ensure_basic_heap_present</span><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">provide_prn</span><span class="plain-syntax">)</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">Assert::true_about</span><span class="plain-syntax">(</span>
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<span class="plain-syntax"> </span><a href="8-cu.html#SP5" class="function-link"><span class="function-syntax">Propositions::Abstract::to_provide_property</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">), </span><span class="identifier-syntax">storage_infs</span><span class="plain-syntax">, </span><span class="identifier-syntax">prevailing_mood</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_12" class="named-paragraph-link"><span class="named-paragraph">Add in the reducing functions</span><span class="named-paragraph-number">5.12</span></a></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">Kinds::Behaviour::is_subkind_of_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">)) ||</span>
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<span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::Behaviour::is_subkind_of_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax">))) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">relation_guard</span><span class="plain-syntax"> *</span><span class="identifier-syntax">rg</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="identifier-syntax">relation_guard</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">check_L</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::Behaviour::is_subkind_of_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">)) </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">check_L</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">check_R</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::Behaviour::is_subkind_of_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax">)) </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">check_R</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">inner_test</span><span class="plain-syntax"> = </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">TEST_ATOM_TASK</span><span class="plain-syntax">];</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">inner_make_true</span><span class="plain-syntax"> = </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">];</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">inner_make_false</span><span class="plain-syntax"> = </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">];</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guarding</span><span class="plain-syntax"> = </span><span class="identifier-syntax">bp</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">f0</span><span class="plain-syntax"> = </span><span class="identifier-syntax">BPTerms::get_function</span><span class="plain-syntax">(&(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">term_details</span><span class="plain-syntax">[0]));</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">f1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">BPTerms::get_function</span><span class="plain-syntax">(&(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">term_details</span><span class="plain-syntax">[1]));</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_f0_iname</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">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_f1_iname</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">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_test_iname</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">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_make_true_iname</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">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_make_false_iname</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">f0</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">R</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RTRelations::package</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_f0_iname</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Hierarchy::make_iname_in</span><span class="plain-syntax">(</span><span class="identifier-syntax">GUARD_F0_FN_HL</span><span class="plain-syntax">, </span><span class="identifier-syntax">R</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">BPTerms::set_function</span><span class="plain-syntax">(&(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">term_details</span><span class="plain-syntax">[0]),</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(%n(*1))"</span><span class="plain-syntax">, </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_f0_iname</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">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">f1</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">R</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RTRelations::package</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_f1_iname</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Hierarchy::make_iname_in</span><span class="plain-syntax">(</span><span class="identifier-syntax">GUARD_F1_FN_HL</span><span class="plain-syntax">, </span><span class="identifier-syntax">R</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">BPTerms::set_function</span><span class="plain-syntax">(&(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">term_details</span><span class="plain-syntax">[1]),</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(%n(*1))"</span><span class="plain-syntax">, </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_f1_iname</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">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">TEST_ATOM_TASK</span><span class="plain-syntax">]) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">R</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RTRelations::package</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_test_iname</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Hierarchy::make_iname_in</span><span class="plain-syntax">(</span><span class="identifier-syntax">GUARD_TEST_FN_HL</span><span class="plain-syntax">, </span><span class="identifier-syntax">R</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">TEST_ATOM_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(%n(*1,*2))"</span><span class="plain-syntax">, </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_test_iname</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">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">]) {</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">R</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RTRelations::package</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_make_true_iname</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Hierarchy::make_iname_in</span><span class="plain-syntax">(</span><span class="identifier-syntax">GUARD_MAKE_TRUE_FN_HL</span><span class="plain-syntax">, </span><span class="identifier-syntax">R</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(%n(*1,*2))"</span><span class="plain-syntax">, </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_make_true_iname</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">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">]) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">R</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RTRelations::package</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_make_false_iname</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Hierarchy::make_iname_in</span><span class="plain-syntax">(</span><span class="identifier-syntax">GUARD_MAKE_FALSE_INAME_HL</span><span class="plain-syntax">, </span><span class="identifier-syntax">R</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(%n(*1,*2))"</span><span class="plain-syntax">, </span><span class="identifier-syntax">rg</span><span class="plain-syntax">-></span><span class="identifier-syntax">guard_make_false_iname</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">RTRelations::guard</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">, </span><span class="identifier-syntax">rg</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">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">RELATION_DEFINITIONS</span><span class="plain-syntax">, </span><span class="string-syntax">"Defined the binary predicate:\n$2\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">bp</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_1" class="paragraph-anchor"></a><b>§5.1. The parsing phase. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Parse the classification variables and use them to fill in the BP term details</span><span class="named-paragraph-number">5.1</span></span><span class="comment-syntax"> =</span>
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</p>
|
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<pre class="displayed-code all-displayed-code code-font">
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_1_2" class="named-paragraph-link"><span class="named-paragraph">Detect callings for the terms of the relation</span><span class="named-paragraph-number">5.1.2</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_1_3" class="named-paragraph-link"><span class="named-paragraph">Work out the kinds of the terms in the relation</span><span class="named-paragraph-number">5.1.3</span></a></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">Wordings::empty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">CONW</span><span class="plain-syntax">)) </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_1_4" class="named-paragraph-link"><span class="named-paragraph">Determine property used for run-time storage</span><span class="named-paragraph-number">5.1.4</span></a></span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nrr.html#SP5_1_1" class="named-paragraph-link"><span class="named-paragraph">Fill in the BP term details based on the left- and right- variables</span><span class="named-paragraph-number">5.1.1</span></a></span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5">§5</a>.</li></ul>
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<p class="commentary firstcommentary"><a id="SP5_1_1" class="paragraph-anchor"></a><b>§5.1.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Fill in the BP term details based on the left- and right- variables</span><span class="named-paragraph-number">5.1.1</span></span><span class="comment-syntax"> =</span>
|
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</p>
|
|
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<pre class="displayed-code all-displayed-code code-font">
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<span class="plain-syntax"> </span><span class="identifier-syntax">bp_term_details</span><span class="plain-syntax"> </span><span class="identifier-syntax">left_bptd</span><span class="plain-syntax">, </span><span class="identifier-syntax">right_bptd</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inference_subject</span><span class="plain-syntax"> *</span><span class="identifier-syntax">left_infs</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, *</span><span class="identifier-syntax">right_infs</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">) </span><span class="identifier-syntax">left_infs</span><span class="plain-syntax"> = </span><span class="identifier-syntax">KindSubjects::from_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</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">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax">) </span><span class="identifier-syntax">right_infs</span><span class="plain-syntax"> = </span><span class="identifier-syntax">KindSubjects::from_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">left_bptd</span><span class="plain-syntax"> = </span><span class="identifier-syntax">BPTerms::new_full</span><span class="plain-syntax">(</span><span class="identifier-syntax">left_infs</span><span class="plain-syntax">, </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">, </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">CALLW</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">right_bptd</span><span class="plain-syntax"> = </span><span class="identifier-syntax">BPTerms::new_full</span><span class="plain-syntax">(</span><span class="identifier-syntax">right_infs</span><span class="plain-syntax">, </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax">, </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">CALLW</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">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">term_details</span><span class="plain-syntax">[0] = </span><span class="identifier-syntax">left_bptd</span><span class="plain-syntax">; </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">term_details</span><span class="plain-syntax">[1] = </span><span class="identifier-syntax">right_bptd</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bpr</span><span class="plain-syntax">-></span><span class="identifier-syntax">term_details</span><span class="plain-syntax">[0] = </span><span class="identifier-syntax">right_bptd</span><span class="plain-syntax">; </span><span class="identifier-syntax">bpr</span><span class="plain-syntax">-></span><span class="identifier-syntax">term_details</span><span class="plain-syntax">[1] = </span><span class="identifier-syntax">left_bptd</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5_1">§5.1</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_1_2" class="paragraph-anchor"></a><b>§5.1.2. </b>Callings are used to give names to the terms on each side of the relation,
|
|
e.g.,
|
|
</p>
|
|
|
|
<blockquote>
|
|
<p>Lock-fitting relates one thing (called the matching key) to various things.</p>
|
|
</blockquote>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Detect callings for the terms of the relation</span><span class="named-paragraph-number">5.1.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">)) || (</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">)))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">calling_made</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5_1">§5.1</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_1_3" class="paragraph-anchor"></a><b>§5.1.3. </b>Here we find out the kind which forms the domain on either side. Ideally
|
|
we want each to be a fixed-size and fairly small domain set; actually, best
|
|
of all is for both kinds to be within "object", since that can be stored
|
|
very efficiently, and the worst case is to be forced into "dynamic" storage:
|
|
this means using up heap memory allocated dynamically at run-time.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Work out the kinds of the terms in the relation</span><span class="named-paragraph-number">5.1.3</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::empty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">CONW</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">Kinds::Behaviour::is_subkind_of_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><a href="3-nrr.html#SP7" class="function-link"><span class="function-syntax">RelationRequests::check_finite_range</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">)) </span><span class="identifier-syntax">dynamic</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">Kinds::Behaviour::is_subkind_of_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">symmetric</span><span class="plain-syntax"> == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><a href="3-nrr.html#SP7" class="function-link"><span class="function-syntax">RelationRequests::check_finite_range</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">)) </span><span class="identifier-syntax">dynamic</span><span class="plain-syntax"> = </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5_1">§5.1</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_1_4" class="paragraph-anchor"></a><b>§5.1.4. </b>All forms of relation we can produce from here use an I6 property for
|
|
run-time storage (though different forms of relation use it differently).
|
|
We use the calling, if any, to name this property: if there are no
|
|
callings, then it gets a name like "concealment relation storage", and is
|
|
omitted from the index.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Determine property used for run-time storage</span><span class="named-paragraph-number">5.1.4</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ValueProperties::obtain_within_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">, </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</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">prn</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="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ValueProperties::obtain_within_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">CALLW</span><span class="plain-syntax">, </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</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">prn</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="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">word_assemblage</span><span class="plain-syntax"> </span><span class="identifier-syntax">pw_wa</span><span class="plain-syntax"> =</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PreformUtilities::merge</span><span class="plain-syntax">(</span><span class="function-syntax"><relation-storage-construction></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">WordAssemblages::from_wording</span><span class="plain-syntax">(</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">RW</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">PW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">WordAssemblages::to_wording</span><span class="plain-syntax">(&</span><span class="identifier-syntax">pw_wa</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">prn</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ValueProperties::obtain_within_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">PW</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_object</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">prn</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="plain-syntax"> </span><span class="identifier-syntax">RTProperties::dont_show_in_index</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RTProperties::iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">PK</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</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">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">) </span><span class="identifier-syntax">PK</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</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">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax">) </span><span class="identifier-syntax">PK</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</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">PK</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">Kinds::Behaviour::is_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">PK</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">)) </span><span class="identifier-syntax">ValueProperties::set_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">PK</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">storage_kind</span><span class="plain-syntax">) </span><span class="identifier-syntax">storage_infs</span><span class="plain-syntax"> = </span><span class="identifier-syntax">KindSubjects::from_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">storage_kind</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">storage_infs</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">if</span><span class="plain-syntax"> (((</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</span><span class="plain-syntax">)) && (</span><span class="identifier-syntax">PK</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::Behaviour::is_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">PK</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTProperties::use_non_typesafe_0</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5_1">§5.1</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_2" class="paragraph-anchor"></a><b>§5.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Issue a problem message since this won't be stored in a property</span><span class="named-paragraph-number">5.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_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_RelNotStoredInProperty</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"a '(called ...)' name can't be used for this relation"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"because of the kinds involved in it. (Names for terms in a relation "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"only work if it's possible to store the relation using properties, "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"but that's impossible here, so Inform uses a different scheme.)"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_3" class="paragraph-anchor"></a><b>§5.3. The completion phase. </b>At this point the BP is filled in except for: its form; the schemas for
|
|
testing, asserting true and asserting false; the run-time storage property
|
|
to be used, if any; and any fields which are specific to the form in
|
|
question. Anyway, there are eight possible forms of explicit BP, so
|
|
here are eight paragraphs creating them.
|
|
</p>
|
|
|
|
<p class="commentary firstcommentary"><a id="SP5_4" class="paragraph-anchor"></a><b>§5.4. </b>The <span class="extract"><span class="extract-syntax">Relation_OtoO</span></span> case, or one to one: "R relates one K to one K".
|
|
</p>
|
|
|
|
<p class="commentary">Such a relation consumes run-time storage of \(5D\) bytes on the Z-machine
|
|
and \(14D\) bytes on Glulx, where \(D\) is the size of the domain...
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Complete as an asymmetric one-to-one BP</span><span class="named-paragraph-number">5.4</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ED</span><span class="plain-syntax">-></span><span class="element-syntax">form_of_relation</span><span class="plain-syntax"> = </span><span class="constant-syntax">Relation_OtoO</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">provide_prn</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">Kinds::Behaviour::is_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_Now1to1(*2,%n,*1)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowN1toV(*2,%n,*1)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_Now1to1V(*2,*1,%k,%n)"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowN1toVV(*2,*1,%k,%n)"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_5" class="paragraph-anchor"></a><b>§5.5. </b>The <span class="extract"><span class="extract-syntax">Relation_OtoV</span></span> case, or one to various: "R relates one K to various K".
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Complete as a one-to-various BP</span><span class="named-paragraph-number">5.5</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ED</span><span class="plain-syntax">-></span><span class="element-syntax">form_of_relation</span><span class="plain-syntax"> = </span><span class="constant-syntax">Relation_OtoV</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">provide_prn</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">Kinds::Behaviour::is_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"*2.%n = *1"</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowN1toV(*2,%n,*1)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"WriteGProperty(%k, *2, %n, *1)"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowN1toVV(*2,*1,%k,%n)"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_6" class="paragraph-anchor"></a><b>§5.6. </b>The <span class="extract"><span class="extract-syntax">Relation_VtoO</span></span> case, or various to one: "R relates various K to one K".
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Complete as a various-to-one BP</span><span class="named-paragraph-number">5.6</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ED</span><span class="plain-syntax">-></span><span class="element-syntax">form_of_relation</span><span class="plain-syntax"> = </span><span class="constant-syntax">Relation_VtoO</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">provide_prn</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">Kinds::Behaviour::is_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"*1.%n = *2"</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowN1toV(*1,%n,*2)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"WriteGProperty(%k, *1, %n, *2)"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowN1toVV(*1,*2,%k,%n)"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_7" class="paragraph-anchor"></a><b>§5.7. </b>The <span class="extract"><span class="extract-syntax">Relation_VtoV</span></span> case, or various to various: "R relates various K to
|
|
various K".
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Complete as an asymmetric various-to-various BP</span><span class="named-paragraph-number">5.7</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ED</span><span class="plain-syntax">-></span><span class="element-syntax">form_of_relation</span><span class="plain-syntax"> = </span><span class="constant-syntax">Relation_VtoV</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">TEST_ATOM_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(Relation_TestVtoV(*1,%n,*2,false))"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTRelations::iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(Relation_NowVtoV(*1,%n,*2,false))"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTRelations::iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(Relation_NowNVtoV(*1,%n,*2,false))"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTRelations::iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">));</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_8" class="paragraph-anchor"></a><b>§5.8. </b>The <span class="extract"><span class="extract-syntax">Relation_Sym_OtoO</span></span> case, or symmetric one to one: "R relates one K to
|
|
another".
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Complete as a symmetric one-to-one BP</span><span class="named-paragraph-number">5.8</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ED</span><span class="plain-syntax">-></span><span class="element-syntax">form_of_relation</span><span class="plain-syntax"> = </span><span class="constant-syntax">Relation_Sym_OtoO</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">provide_prn</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">Kinds::Behaviour::is_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowS1to1(*2,%n,*1)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowSN1to1(*2,%n,*1)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowS1to1V(*2,*1,%k,%n)"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowSN1to1V(*2,*1,%k,%n)"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_9" class="paragraph-anchor"></a><b>§5.9. </b>The <span class="extract"><span class="extract-syntax">Relation_Sym_VtoV</span></span> case, or symmetric various to various: "R relates K
|
|
to each other".
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Complete as a symmetric various-to-various BP</span><span class="named-paragraph-number">5.9</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ED</span><span class="plain-syntax">-></span><span class="element-syntax">form_of_relation</span><span class="plain-syntax"> = </span><span class="constant-syntax">Relation_Sym_VtoV</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">TEST_ATOM_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(Relation_TestVtoV(*1,%n,*2,true))"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTRelations::iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(Relation_NowVtoV(*1,%n,*2,true))"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTRelations::iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(Relation_NowNVtoV(*1,%n,*2,true))"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTRelations::iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">));</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_10" class="paragraph-anchor"></a><b>§5.10. </b>The <span class="extract"><span class="extract-syntax">Relation_Equiv</span></span> case, or equivalence relation: "R relates K to each
|
|
other in groups".
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Complete as an equivalence-relation BP</span><span class="named-paragraph-number">5.10</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ED</span><span class="plain-syntax">-></span><span class="element-syntax">form_of_relation</span><span class="plain-syntax"> = </span><span class="constant-syntax">Relation_Equiv</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">equivalence_bp_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">D</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">equivalence_bp_data</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">D</span><span class="plain-syntax">-></span><span class="element-syntax">equivalence_partition</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ED</span><span class="plain-syntax">-></span><span class="element-syntax">equiv_data</span><span class="plain-syntax"> = </span><span class="identifier-syntax">D</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">provide_prn</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">Kinds::Behaviour::is_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">TEST_ATOM_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(*1.%n == *2.%n)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowEquiv(*1,%n,*2)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowNEquiv(*1,%n,*2)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">TEST_ATOM_TASK</span><span class="plain-syntax">] =</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(%k >> *1 . %n == %k >> *2 . %n)"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] =</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowEquivV(*1,*2,%k,%n)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] =</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"Relation_NowNEquivV(*1,*2,%k,%n)"</span><span class="plain-syntax">, </span><span class="identifier-syntax">storage_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">ValueProperties::set_kind</span><span class="plain-syntax">(</span><span class="identifier-syntax">prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_number</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_11" class="paragraph-anchor"></a><b>§5.11. </b>The case of a relation tested by a routine: "R relates K to L when (some
|
|
condition)".
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Complete as a relation-by-routine BP</span><span class="named-paragraph-number">5.11</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">relation_family</span><span class="plain-syntax"> = </span><span class="identifier-syntax">by_function_bp_family</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">reversal</span><span class="plain-syntax">-></span><span class="identifier-syntax">relation_family</span><span class="plain-syntax"> = </span><span class="identifier-syntax">by_function_bp_family</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RTRelations::package</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">by_function_bp_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">D</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">by_function_bp_data</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">D</span><span class="plain-syntax">-></span><span class="element-syntax">condition_defn_text</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="identifier-syntax">CONW</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">D</span><span class="plain-syntax">-></span><span class="element-syntax">bp_by_routine_iname</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Hierarchy::make_iname_in</span><span class="plain-syntax">(</span><span class="identifier-syntax">RELATION_FN_HL</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">TEST_ATOM_TASK</span><span class="plain-syntax">] = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(%n(*1,*2))"</span><span class="plain-syntax">, </span><span class="identifier-syntax">D</span><span class="plain-syntax">-></span><span class="element-syntax">bp_by_routine_iname</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">family_specific</span><span class="plain-syntax"> = </span><span class="identifier-syntax">STORE_POINTER_by_function_bp_data</span><span class="plain-syntax">(</span><span class="identifier-syntax">D</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_12" class="paragraph-anchor"></a><b>§5.12. </b>The left- and right- local variables above provide us with convenient
|
|
aliases for the entries which will end up in the <span class="extract"><span class="extract-syntax">bp_term_details</span></span>
|
|
structures attached to the BP: this is where we put them back.
|
|
</p>
|
|
|
|
<p class="commentary">For the meaning of functions \(f_0\) and \(f_1\), see "Binary Predicates.w".
|
|
The idea here is this: suppose we have a relation of objects where the only
|
|
true outcomes have the form \(B(f_0(y), y)\). At run-time we store the
|
|
identity of the counterpart object \(f_0(y)\) in the <span class="extract"><span class="extract-syntax">prn</span></span> property of the
|
|
original object \(y\).
|
|
</p>
|
|
|
|
<p class="commentary">And we similarly construct an \(f_1\) function if the only true outcomes
|
|
have the form \(B(x, f_1(x))\).
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Add in the reducing functions</span><span class="named-paragraph-number">5.12</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">f0</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, *</span><span class="identifier-syntax">f1</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">unique</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">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">domain</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">f0</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(%k >> *1 . %n)"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="identifier-syntax">domain</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">unique</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">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">domain</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">f1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(%k >> *1 . %n)"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RR</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="identifier-syntax">domain</span><span class="plain-syntax">, </span><span class="identifier-syntax">i6_prn_name</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">f0</span><span class="plain-syntax">) </span><span class="identifier-syntax">BPTerms::set_function</span><span class="plain-syntax">(&(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">term_details</span><span class="plain-syntax">[0]), </span><span class="identifier-syntax">f0</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">f1</span><span class="plain-syntax">) </span><span class="identifier-syntax">BPTerms::set_function</span><span class="plain-syntax">(&(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">term_details</span><span class="plain-syntax">[1]), </span><span class="identifier-syntax">f1</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_13" class="paragraph-anchor"></a><b>§5.13. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Override with dynamic allocation schemata</span><span class="named-paragraph-number">5.13</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">TEST_ATOM_TASK</span><span class="plain-syntax">] =</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(RelationTest(%n,RELS_TEST,*1,*2))"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTRelations::iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax">] =</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(RelationTest(%n,RELS_ASSERT_TRUE,*1,*2))"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTRelations::iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp</span><span class="plain-syntax">-></span><span class="identifier-syntax">task_functions</span><span class="plain-syntax">[</span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax">] =</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Calculus::Schemas::new</span><span class="plain-syntax">(</span><span class="string-syntax">"(RelationTest(%n,RELS_ASSERT_FALSE,*1,*2))"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">RTRelations::iname</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">));</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nrr.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>§6. Storing relations. </b>At runtime, relation data is sometimes stored in a property, and that needs
|
|
to have a name:
|
|
</p>
|
|
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><relation-storage-construction></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">relation</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">storage</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="SP7" class="paragraph-anchor"></a><b>§7. </b>A modest utility, to check for a case we forbid because of the prohibitive
|
|
(or anyway unpredictable) run-time storage it would imply.
|
|
</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">RelationRequests::check_finite_range</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">RelationRequests::check_finite_range</span></span>:<br/><a href="3-nrr.html#SP5_1_3">§5.1.3</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</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">Kinds::Behaviour::is_an_enumeration</span><span class="plain-syntax">(</span><span class="identifier-syntax">K</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">K</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="comment-syntax"> to recover from earlier problems</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">Kinds::Behaviour::is_object</span><span class="plain-syntax">(</span><span class="identifier-syntax">K</span><span class="plain-syntax">)) || (</span><span class="identifier-syntax">Kinds::Behaviour::definite</span><span class="plain-syntax">(</span><span class="identifier-syntax">K</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_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_RangeOverlyBroad</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"relations aren't allowed to range over all 'objects' or all 'values'"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"as these are too broad. A relation has to be between two kinds of "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"object, or kinds of value. So 'Taming relates various people to "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"various animals' is fine, because 'people' and 'animals' both mean "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"kinds of object, but 'Wanting relates various objects to various "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"values' is not allowed."</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. Registering names of relations. </b></p>
|
|
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><relation-name-formal></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">relation</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="SP9" class="paragraph-anchor"></a><b>§9. </b></p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="Preform-constant-syntax">BINARY_PREDICATE_CREATED_CALCULUS_CALLBACK</span><span class="Preform-plain-syntax"> </span><a href="3-nrr.html#SP9" class="function-link"><span class="Preform-function-syntax">RelationRequests::register_name</span></a>
|
|
</pre>
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">RelationRequests::register_name</span><span class="plain-syntax">(</span><span class="identifier-syntax">binary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">bp</span><span class="plain-syntax">, </span><span class="identifier-syntax">word_assemblage</span><span class="plain-syntax"> </span><span class="identifier-syntax">source_name</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">word_assemblage</span><span class="plain-syntax"> </span><span class="identifier-syntax">wa</span><span class="plain-syntax"> =</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PreformUtilities::merge</span><span class="plain-syntax">(</span><span class="function-syntax"><relation-name-formal></span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="identifier-syntax">source_name</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">AW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">WordAssemblages::to_wording</span><span class="plain-syntax">(&</span><span class="identifier-syntax">wa</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Nouns::new_proper_noun</span><span class="plain-syntax">(</span><span class="identifier-syntax">AW</span><span class="plain-syntax">, </span><span class="identifier-syntax">NEUTER_GENDER</span><span class="plain-syntax">, </span><span class="identifier-syntax">ADD_TO_LEXICON_NTOPT</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">MISCELLANEOUS_MC</span><span class="plain-syntax">, </span><span class="identifier-syntax">Rvalues::from_binary_predicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">bp</span><span class="plain-syntax">), </span><span class="identifier-syntax">Task::language_of_syntax</span><span class="plain-syntax">());</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<nav role="progress"><div class="progresscontainer">
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