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<!--Weave of 'Name Clusters' generated by Inweb-->
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Services</a></li><li><a href="index.html">inflections</a></li><li><a href="index.html#3">Chapter 3: Declension and Conjugation</a></li><li><b>Name Clusters</b></li></ul></div>
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<p class="purpose">Name clusters are sets of noun or adjective forms, perhaps multiple or in multiple languages, which have in common that they share a meaning.</p>
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<ul class="toc"><li><a href="3-nc.html#SP1">§1. Cluster</a></li><li><a href="3-nc.html#SP5">§5. Plural fixing</a></li><li><a href="3-nc.html#SP6">§6. Searching declensions</a></li><li><a href="3-nc.html#SP9">§9. Meanings</a></li></ul><hr class="tocbar">
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<p class="commentary firstcommentary"><a id="SP1"></a><b>§1. Cluster. </b>A cluster is a linked list of wordings, in effect, but they are annotated
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with lingistic roles. For example, the cluster of names for the common noun
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"man" might be:
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</p>
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<blockquote>
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<p>man (En, singular), men (En, plural), homme (Fr, singular), hommes (Fr, plural)</p>
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</blockquote>
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<p class="commentary">While this perhaps looks a little unstructured, that means that it doesn't
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impose many assumptions about the language. Compare the XML frameworks used
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in the Lexical Markup Framework standard ISO 24613, which it would be fairly
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easy to convert our <a href="3-nc.html#SP1" class="internal">name_cluster</a> objects to.
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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">name_cluster</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">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">listed</span><span class="plain-syntax">; </span><span class="comment-syntax"> of </span><span class="extract"><span class="extract-syntax">individual_name</span></span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">name_cluster</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">individual_name</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">general_pointer</span><span class="plain-syntax"> </span><span class="identifier-syntax">principal_meaning</span><span class="plain-syntax">; </span><span class="comment-syntax"> for the client to attach some meaning</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">declension</span><span class="plain-syntax"> </span><span class="identifier-syntax">name</span><span class="plain-syntax">; </span><span class="comment-syntax"> text of 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">name_number</span><span class="plain-syntax">; </span><span class="comment-syntax"> 1 for singular, 2 for plural</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">name_gender</span><span class="plain-syntax">; </span><span class="comment-syntax"> 1 is neuter, 2 is masculine, 3 is feminine</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">NATURAL_LANGUAGE_WORDS_TYPE</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name_language</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax">;</span>
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</pre>
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<ul class="endnotetexts"><li>The structure name_cluster is private to this section.</li><li>The structure individual_name is private to this section.</li></ul>
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<p class="commentary firstcommentary"><a id="SP2"></a><b>§2. </b>A cluster begins empty.
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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">name_cluster</span><span class="plain-syntax"> *</span><span class="function-syntax">Clusters::new</span><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">name_cluster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">names</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">name_cluster</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">names</span><span class="plain-syntax">-></span><span class="identifier-syntax">listed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NEW_LINKED_LIST</span><span class="plain-syntax">(</span><span class="reserved-syntax">individual_name</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">names</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="SP3"></a><b>§3. </b>The following can add either a single name, or a name and its plural(s):
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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">individual_name</span><span class="plain-syntax"> *</span><span class="function-syntax">Clusters::add_one</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">Clusters::add_one</span></span>:<br/><a href="3-nc.html#SP3_1">§3.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">name_cluster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">names</span><span class="plain-syntax">, </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">NATURAL_LANGUAGE_WORDS_TYPE</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nl</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">gender</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">number</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">nl</span><span class="plain-syntax"> = </span><a href="4-dl.html#SP1" class="function-link"><span class="function-syntax">DefaultLanguage::get</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">nl</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">in</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">individual_name</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">principal_meaning</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL_GENERAL_POINTER</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax"> = </span><a href="3-dcl.html#SP5" class="function-link"><span class="function-syntax">Declensions::of_noun</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">nl</span><span class="plain-syntax">, </span><span class="identifier-syntax">gender</span><span class="plain-syntax">, </span><span class="identifier-syntax">number</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">name_language</span><span class="plain-syntax"> = </span><span class="identifier-syntax">nl</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">name_number</span><span class="plain-syntax"> = </span><span class="identifier-syntax">number</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">name_gender</span><span class="plain-syntax"> = </span><span class="identifier-syntax">gender</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ADD_TO_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">in</span><span class="plain-syntax">, </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">names</span><span class="plain-syntax">-></span><span class="element-syntax">listed</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">in</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="function-syntax">Clusters::add</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">Clusters::add</span></span>:<br/><a href="3-nc.html#SP4">§4</a>, <a href="3-nc.html#SP4_1">§4.1</a>, <a href="3-nc.html#SP5">§5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">name_cluster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">names</span><span class="plain-syntax">, </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">NATURAL_LANGUAGE_WORDS_TYPE</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nl</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">gender</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">number</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">pluralise</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">linked_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">L</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NEW_LINKED_LIST</span><span class="plain-syntax">(</span><span class="reserved-syntax">individual_name</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">in</span><span class="plain-syntax"> = </span><a href="3-nc.html#SP3" class="function-link"><span class="function-syntax">Clusters::add_one</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">names</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">nl</span><span class="plain-syntax">, </span><span class="identifier-syntax">gender</span><span class="plain-syntax">, </span><span class="identifier-syntax">number</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ADD_TO_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">in</span><span class="plain-syntax">, </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</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">pluralise</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">number</span><span class="plain-syntax"> == </span><span class="constant-syntax">1</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-nc.html#SP3_1" class="named-paragraph-link"><span class="named-paragraph">Add plural names as well</span><span class="named-paragraph-number">3.1</span></a></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">L</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="SP3_1"></a><b>§3.1. </b>The following makes all possible plurals and registers those too. (Note
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that every instance gets a plural name: even something palpably unique, like
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"the Koh-i-Noor diamond".) The plural dictionary supports multiple plurals,
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so there may be any number of names registered: for instance, the kind
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"person" is registered with plurals "persons" and "people".
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</p>
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<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Add plural names as well</span><span class="named-paragraph-number">3.1</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="reserved-syntax">plural_dictionary_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pde</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">k</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">do</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">k</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">PW</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">pde</span><span class="plain-syntax"> = </span><a href="2-plr.html#SP3" class="function-link"><span class="function-syntax">Pluralisation::make</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, &</span><span class="identifier-syntax">PW</span><span class="plain-syntax">, </span><span class="identifier-syntax">pde</span><span class="plain-syntax">, </span><span class="identifier-syntax">nl</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::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">PW</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">CONSTRUCTED_PLURALS</span><span class="plain-syntax">, </span><span class="string-syntax">"(%d) Plural of <%W>: <%W>\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">k</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">PW</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">in</span><span class="plain-syntax"> = </span><a href="3-nc.html#SP3" class="function-link"><span class="function-syntax">Clusters::add_one</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">names</span><span class="plain-syntax">, </span><span class="identifier-syntax">PW</span><span class="plain-syntax">, </span><span class="identifier-syntax">nl</span><span class="plain-syntax">, </span><span class="identifier-syntax">gender</span><span class="plain-syntax">, </span><span class="constant-syntax">2</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ADD_TO_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">in</span><span class="plain-syntax">, </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</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">while</span><span class="plain-syntax"> (</span><span class="identifier-syntax">pde</span><span class="plain-syntax">);</span>
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</pre>
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<ul class="endnotetexts"><li>This code is used in <a href="3-nc.html#SP3">§3</a>.</li></ul>
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<p class="commentary firstcommentary"><a id="SP4"></a><b>§4. </b>The following is more suited to adjectives, or to words which are used
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adjectivally, such as past participles in French. This time we generate all
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possible gender and number agreements — except in English, where no variation
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occurs: please don't argue about blond/blonde.
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</p>
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<p class="commentary">GNA is a traditional Inform term, standing for "gender-number-animation".
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At run time, it's an integer from 0 to 11 which encodes all possible
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combinations. Here we only work through six, ignoring animation:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Clusters::add_with_agreements</span><span class="plain-syntax">(</span><span class="reserved-syntax">name_cluster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cl</span><span class="plain-syntax">, </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">NATURAL_LANGUAGE_WORDS_TYPE</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nl</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">nl</span><span class="plain-syntax"> = </span><a href="4-dl.html#SP1" class="function-link"><span class="function-syntax">DefaultLanguage::get</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">nl</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">nl</span><span class="plain-syntax"> == </span><a href="4-dl.html#SP1" class="function-link"><span class="function-syntax">DefaultLanguage::get</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">NULL</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><a href="3-nc.html#SP3" class="function-link"><span class="function-syntax">Clusters::add</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cl</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">nl</span><span class="plain-syntax">, </span><span class="constant-syntax">NEUTER_GENDER</span><span class="plain-syntax">, </span><span class="constant-syntax">1</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">else</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">gna</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">; </span><span class="identifier-syntax">gna</span><span class="plain-syntax"> < </span><span class="constant-syntax">6</span><span class="plain-syntax">; </span><span class="identifier-syntax">gna</span><span class="plain-syntax">++)</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nc.html#SP4_1" class="named-paragraph-link"><span class="named-paragraph">Generate agreement form in this GNA and add to the declension</span><span class="named-paragraph-number">4.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP4_1"></a><b>§4.1. </b>We use tries to modify the base text, which is taken to be the neuter
|
|
singular form, into the other five forms.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Generate agreement form in this GNA and add to the declension</span><span class="named-paragraph-number">4.1</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">nonterminal</span><span class="plain-syntax"> *</span><span class="identifier-syntax">step1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, *</span><span class="identifier-syntax">step2</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">form_number</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</span><span class="plain-syntax">, </span><span class="identifier-syntax">form_gender</span><span class="plain-syntax"> = </span><span class="constant-syntax">NEUTER_GENDER</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">gna</span><span class="plain-syntax"> >= </span><span class="constant-syntax">3</span><span class="plain-syntax">) </span><span class="identifier-syntax">form_number</span><span class="plain-syntax"> = </span><span class="constant-syntax">2</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">gna</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax">: </span><span class="identifier-syntax">step1</span><span class="plain-syntax"> = </span><span class="function-syntax"><adjective-to-masculine-singular></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">form_gender</span><span class="plain-syntax"> = </span><span class="constant-syntax">MASCULINE_GENDER</span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span><span class="plain-syntax">: </span><span class="identifier-syntax">step1</span><span class="plain-syntax"> = </span><span class="function-syntax"><adjective-to-feminine-singular></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">form_gender</span><span class="plain-syntax"> = </span><span class="constant-syntax">FEMININE_GENDER</span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span><span class="plain-syntax">: </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span><span class="plain-syntax">: </span><span class="identifier-syntax">step1</span><span class="plain-syntax"> = </span><span class="function-syntax"><adjective-to-masculine-singular></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">step2</span><span class="plain-syntax"> = </span><span class="function-syntax"><adjective-to-masculine-plural></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">form_gender</span><span class="plain-syntax"> = </span><span class="constant-syntax">MASCULINE_GENDER</span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">4</span><span class="plain-syntax">: </span><span class="identifier-syntax">step1</span><span class="plain-syntax"> = </span><span class="function-syntax"><adjective-to-feminine-singular></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">step2</span><span class="plain-syntax"> = </span><span class="function-syntax"><adjective-to-feminine-plural></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">form_gender</span><span class="plain-syntax"> = </span><span class="constant-syntax">FEMININE_GENDER</span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">5</span><span class="plain-syntax">: </span><span class="identifier-syntax">step1</span><span class="plain-syntax"> = </span><span class="function-syntax"><adjective-to-plural></span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</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">FW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-nc.html#SP4_1_1" class="named-paragraph-link"><span class="named-paragraph">Process via the agreement trie in this pipeline</span><span class="named-paragraph-number">4.1.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><a href="3-nc.html#SP3" class="function-link"><span class="function-syntax">Clusters::add</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cl</span><span class="plain-syntax">, </span><span class="identifier-syntax">FW</span><span class="plain-syntax">, </span><span class="identifier-syntax">nl</span><span class="plain-syntax">, </span><span class="identifier-syntax">form_gender</span><span class="plain-syntax">, </span><span class="identifier-syntax">form_number</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-nc.html#SP4">§4</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP4_1_1"></a><b>§4.1.1. </b>Not much of a pipeline, really: we start with the base case and work
|
|
through one or two tries.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Process via the agreement trie in this pipeline</span><span class="named-paragraph-number">4.1.1</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">word_assemblage</span><span class="plain-syntax"> </span><span class="identifier-syntax">wa</span><span class="plain-syntax"> = </span><span class="identifier-syntax">WordAssemblages::from_wording</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">step1</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">wa</span><span class="plain-syntax"> = </span><a href="2-tai.html#SP3" class="function-link"><span class="function-syntax">Inflect::first_word</span></a><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::define_trie</span><span class="plain-syntax">(</span><span class="identifier-syntax">step1</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRIE_END</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><a href="4-dl.html#SP1" class="function-link"><span class="function-syntax">DefaultLanguage::get</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">nl</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">step2</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">wa</span><span class="plain-syntax"> = </span><a href="2-tai.html#SP3" class="function-link"><span class="function-syntax">Inflect::first_word</span></a><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::define_trie</span><span class="plain-syntax">(</span><span class="identifier-syntax">step2</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRIE_END</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><a href="4-dl.html#SP1" class="function-link"><span class="function-syntax">DefaultLanguage::get</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">nl</span><span class="plain-syntax">)));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">FW</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>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="3-nc.html#SP4_1">§4.1</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5"></a><b>§5. Plural fixing. </b>Less elegantly, we can force the plural of a name in a cluster to a given
|
|
fixed text, overwriting it if it's already there. In practice this is done
|
|
only when the built-in kinds are being given plural names; some of these
|
|
(those for kind constructors with optional wordings) have a peculiar format,
|
|
and wouldn't pass through the pluralising tries intact.
|
|
</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">Clusters::set_plural_name</span><span class="plain-syntax">(</span><span class="reserved-syntax">name_cluster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cl</span><span class="plain-syntax">, </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">NATURAL_LANGUAGE_WORDS_TYPE</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nl</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">in</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">in</span><span class="plain-syntax">, </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">cl</span><span class="plain-syntax">-></span><span class="element-syntax">listed</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">in</span><span class="plain-syntax">-></span><span class="element-syntax">name_number</span><span class="plain-syntax"> == </span><span class="constant-syntax">2</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax"> = </span><a href="3-dcl.html#SP5" class="function-link"><span class="function-syntax">Declensions::of_noun</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">nl</span><span class="plain-syntax">, </span><span class="constant-syntax">NEUTER_GENDER</span><span class="plain-syntax">, </span><span class="constant-syntax">2</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><a href="3-nc.html#SP3" class="function-link"><span class="function-syntax">Clusters::add</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cl</span><span class="plain-syntax">, </span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="constant-syntax">NEUTER_GENDER</span><span class="plain-syntax">, </span><span class="constant-syntax">2</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="SP6"></a><b>§6. Searching declensions. </b>These are always quite small, so there's no need for any efficient device
|
|
to search them.
|
|
</p>
|
|
|
|
<p class="commentary">The first routine finds the earliest name with the correct number (singular
|
|
or plural):
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="function-syntax">Clusters::get_name</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">Clusters::get_name</span></span>:<br/><a href="3-nc.html#SP7">§7</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">name_cluster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cl</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">plural_flag</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">number_sought</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</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">plural_flag</span><span class="plain-syntax">) </span><span class="identifier-syntax">number_sought</span><span class="plain-syntax"> = </span><span class="constant-syntax">2</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">in</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">in</span><span class="plain-syntax">, </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">cl</span><span class="plain-syntax">-></span><span class="element-syntax">listed</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">in</span><span class="plain-syntax">-></span><span class="element-syntax">name_number</span><span class="plain-syntax"> == </span><span class="identifier-syntax">number_sought</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="3-dcl.html#SP4" class="function-link"><span class="function-syntax">Declensions::in_case</span></a><span class="plain-syntax">(&(</span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax">), </span><span class="constant-syntax">NOMINATIVE_CASE</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">EMPTY_WORDING</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP7"></a><b>§7. </b>The following variant finds the earliest name in the language of play,
|
|
falling back on English if there's none registered:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="function-syntax">Clusters::get_name_in_play</span><span class="plain-syntax">(</span><span class="reserved-syntax">name_cluster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cl</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">plural_flag</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">NATURAL_LANGUAGE_WORDS_TYPE</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nl</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">number_sought</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</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">plural_flag</span><span class="plain-syntax">) </span><span class="identifier-syntax">number_sought</span><span class="plain-syntax"> = </span><span class="constant-syntax">2</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">in</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">in</span><span class="plain-syntax">, </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">cl</span><span class="plain-syntax">-></span><span class="element-syntax">listed</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">in</span><span class="plain-syntax">-></span><span class="element-syntax">name_number</span><span class="plain-syntax"> == </span><span class="identifier-syntax">number_sought</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">name_language</span><span class="plain-syntax"> == </span><span class="identifier-syntax">nl</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="3-dcl.html#SP4" class="function-link"><span class="function-syntax">Declensions::in_case</span></a><span class="plain-syntax">(&(</span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax">), </span><span class="constant-syntax">NOMINATIVE_CASE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="3-nc.html#SP6" class="function-link"><span class="function-syntax">Clusters::get_name</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">cl</span><span class="plain-syntax">, </span><span class="identifier-syntax">plural_flag</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP8"></a><b>§8. </b>A more specific search, which can optionally test for number and gender.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="function-syntax">Clusters::get_name_general</span><span class="plain-syntax">(</span><span class="reserved-syntax">name_cluster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cl</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">NATURAL_LANGUAGE_WORDS_TYPE</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nl</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">number_sought</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">gender_sought</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">in</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">in</span><span class="plain-syntax">, </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">cl</span><span class="plain-syntax">-></span><span class="element-syntax">listed</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">number_sought</span><span class="plain-syntax"> == -1) || (</span><span class="identifier-syntax">number_sought</span><span class="plain-syntax"> == </span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">name_number</span><span class="plain-syntax">)) &&</span>
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<span class="plain-syntax"> ((</span><span class="identifier-syntax">gender_sought</span><span class="plain-syntax"> == -1) || (</span><span class="identifier-syntax">gender_sought</span><span class="plain-syntax"> == </span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">name_gender</span><span class="plain-syntax">)) &&</span>
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<span class="plain-syntax"> (</span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">name_language</span><span class="plain-syntax"> == </span><span class="identifier-syntax">nl</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><a href="3-dcl.html#SP4" class="function-link"><span class="function-syntax">Declensions::in_case</span></a><span class="plain-syntax">(&(</span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax">), </span><span class="constant-syntax">NOMINATIVE_CASE</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">EMPTY_WORDING</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="SP9"></a><b>§9. Meanings. </b>We will come to how excerpts of text are given meanings later on. For now, it's
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enough to say that each individual name can have one, and that the pointer
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to an <span class="extract"><span class="extract-syntax">excerpt_meaning</span></span> records it.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Clusters::set_principal_meaning</span><span class="plain-syntax">(</span><span class="reserved-syntax">individual_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">in</span><span class="plain-syntax">, </span><span class="identifier-syntax">general_pointer</span><span class="plain-syntax"> </span><span class="identifier-syntax">meaning</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">in</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">"no individual name"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">in</span><span class="plain-syntax">-></span><span class="element-syntax">principal_meaning</span><span class="plain-syntax"> = </span><span class="identifier-syntax">meaning</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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|
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<span class="identifier-syntax">general_pointer</span><span class="plain-syntax"> </span><span class="function-syntax">Clusters::get_principal_meaning</span><span class="plain-syntax">(</span><span class="reserved-syntax">name_cluster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cl</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">in</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">in</span><span class="plain-syntax">, </span><span class="reserved-syntax">individual_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">cl</span><span class="plain-syntax">-></span><span class="element-syntax">listed</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">in</span><span class="plain-syntax">-></span><span class="element-syntax">principal_meaning</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">NULL_GENERAL_POINTER</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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