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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#5">Chapter 5: Imperative Code</a></li><li><b>Adjectival Definition Family</b></li></ul></div>
<p class="purpose">Imperative definitions of "Definition: X is Y: ..." adjectives.</p>
<ul class="toc"><li><a href="5-adf.html#SP8">&#167;8. Implementation details</a></li></ul><hr class="tocbar">
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. </b>This family is used for adjective definitions, whether or not they run on
into substantial amounts of code.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">imperative_defn_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">adjectival_idf</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> "Definition: a container is roomy if: ..."</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">AdjectivalDefinitionFamily::create_family</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">AdjectivalDefinitionFamily::create_family</span></span>:<br/>Imperative Definition Families - <a href="5-idf.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">adjectival_idf</span><span class="plain-syntax"> = </span><a href="5-idf.html#SP2" class="function-link"><span class="function-syntax">ImperativeDefinitionFamilies::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"adjectival-idf"</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">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">adjectival_idf</span><span class="plain-syntax">, </span><span class="constant-syntax">IDENTIFY_IMP_DEFN_MTID</span><span class="plain-syntax">, </span><a href="5-adf.html#SP4" class="function-link"><span class="function-syntax">AdjectivalDefinitionFamily::identify</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">adjectival_idf</span><span class="plain-syntax">, </span><span class="constant-syntax">GIVEN_BODY_IMP_DEFN_MTID</span><span class="plain-syntax">, </span><a href="5-adf.html#SP6" class="function-link"><span class="function-syntax">AdjectivalDefinitionFamily::given_body</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">adjectival_idf</span><span class="plain-syntax">, </span><span class="constant-syntax">ALLOWS_EMPTY_IMP_DEFN_MTID</span><span class="plain-syntax">, </span><a href="5-adf.html#SP5" class="function-link"><span class="function-syntax">AdjectivalDefinitionFamily::allows_empty</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">adjectival_idf</span><span class="plain-syntax">, </span><span class="constant-syntax">COMPILE_IMP_DEFN_MTID</span><span class="plain-syntax">, </span><a href="5-adf.html#SP7" class="function-link"><span class="function-syntax">AdjectivalDefinitionFamily::compile</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>&#167;2. </b>Colons are used slightly differently in some adjectival definitions. Consider:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">Definition</span><span class="plain-syntax">: </span><span class="identifier-syntax">A</span><span class="plain-syntax"> </span><span class="identifier-syntax">container</span><span class="plain-syntax"> </span><span class="identifier-syntax">is</span><span class="plain-syntax"> </span><span class="identifier-syntax">roomy</span><span class="plain-syntax"> </span><span class="identifier-syntax">if</span><span class="plain-syntax"> </span><span class="identifier-syntax">its</span><span class="plain-syntax"> </span><span class="identifier-syntax">carrying</span><span class="plain-syntax"> </span><span class="identifier-syntax">capacity</span><span class="plain-syntax"> </span><span class="identifier-syntax">is</span><span class="plain-syntax"> </span><span class="identifier-syntax">greater</span><span class="plain-syntax"> </span><span class="identifier-syntax">than</span><span class="plain-syntax"> </span><span class="constant-syntax">10</span><span class="plain-syntax">.</span>
<span class="identifier-syntax">Definition</span><span class="plain-syntax">: </span><span class="identifier-syntax">A</span><span class="plain-syntax"> </span><span class="identifier-syntax">container</span><span class="plain-syntax"> </span><span class="identifier-syntax">is</span><span class="plain-syntax"> </span><span class="identifier-syntax">possessed</span><span class="plain-syntax"> </span><span class="identifier-syntax">by</span><span class="plain-syntax"> </span><span class="identifier-syntax">the</span><span class="plain-syntax"> </span><span class="identifier-syntax">Devil</span><span class="plain-syntax">:</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">if</span><span class="plain-syntax"> </span><span class="identifier-syntax">its</span><span class="plain-syntax"> </span><span class="identifier-syntax">carrying</span><span class="plain-syntax"> </span><span class="identifier-syntax">capacity</span><span class="plain-syntax"> </span><span class="identifier-syntax">is</span><span class="plain-syntax"> </span><span class="constant-syntax">666</span><span class="plain-syntax">, </span><span class="identifier-syntax">decide</span><span class="plain-syntax"> </span><span class="identifier-syntax">yes</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">decide</span><span class="plain-syntax"> </span><span class="identifier-syntax">no</span><span class="plain-syntax">.</span>
</pre>
<p class="commentary">To Inform this looks like three consecutive <span class="extract"><span class="extract-syntax">IMPERATIVE_NT</span></span> nodes:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">Definition</span><span class="plain-syntax">:</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">A</span><span class="plain-syntax"> </span><span class="identifier-syntax">container</span><span class="plain-syntax"> </span><span class="identifier-syntax">is</span><span class="plain-syntax"> </span><span class="identifier-syntax">roomy</span><span class="plain-syntax"> </span><span class="identifier-syntax">if</span><span class="plain-syntax"> </span><span class="identifier-syntax">its</span><span class="plain-syntax"> </span><span class="identifier-syntax">carrying</span><span class="plain-syntax"> </span><span class="identifier-syntax">capacity</span><span class="plain-syntax"> </span><span class="identifier-syntax">is</span><span class="plain-syntax"> </span><span class="identifier-syntax">greater</span><span class="plain-syntax"> </span><span class="identifier-syntax">than</span><span class="plain-syntax"> </span><span class="constant-syntax">10</span><span class="plain-syntax">.</span>
<span class="identifier-syntax">Definition</span><span class="plain-syntax">:</span>
<span class="identifier-syntax">A</span><span class="plain-syntax"> </span><span class="identifier-syntax">container</span><span class="plain-syntax"> </span><span class="identifier-syntax">is</span><span class="plain-syntax"> </span><span class="identifier-syntax">possessed</span><span class="plain-syntax"> </span><span class="identifier-syntax">by</span><span class="plain-syntax"> </span><span class="identifier-syntax">the</span><span class="plain-syntax"> </span><span class="identifier-syntax">Devil</span><span class="plain-syntax">:</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">if</span><span class="plain-syntax"> </span><span class="identifier-syntax">its</span><span class="plain-syntax"> </span><span class="identifier-syntax">carrying</span><span class="plain-syntax"> </span><span class="identifier-syntax">capacity</span><span class="plain-syntax"> </span><span class="identifier-syntax">is</span><span class="plain-syntax"> </span><span class="constant-syntax">666</span><span class="plain-syntax">, </span><span class="identifier-syntax">decide</span><span class="plain-syntax"> </span><span class="identifier-syntax">yes</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">decide</span><span class="plain-syntax"> </span><span class="identifier-syntax">no</span><span class="plain-syntax">.</span>
</pre>
<p class="commentary">But we want to create just two <a href="5-id.html#SP1" class="internal">imperative_defn</a> objects, not three. So
when the second <span class="extract"><span class="extract-syntax">IMPERATIVE_NT</span></span> node is identified as belonging to us, we
take the opportunity to change the type of the third node to <span class="extract"><span class="extract-syntax">DEFN_CONT_NT</span></span>
("definition continuation"). That means it will not lead to an <a href="5-id.html#SP1" class="internal">imperative_defn</a>
of its own.
</p>
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>&#167;3. </b></p>
<pre class="Preform-displayed-code all-displayed-code code-font">
<span class="Preform-function-syntax">&lt;definition-preamble&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">definition</span>
</pre>
<ul class="endnotetexts"><li>This is <a href="../words-module/4-ap.html" class="internal">Preform grammar</a>, not regular C code.</li></ul>
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>&#167;4. </b></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">AdjectivalDefinitionFamily::identify</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">AdjectivalDefinitionFamily::identify</span></span>:<br/><a href="5-adf.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">imperative_defn_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="reserved-syntax">imperative_defn</span><span class="plain-syntax"> *</span><span class="identifier-syntax">id</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Node::get_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">at</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">&lt;definition-preamble&gt;</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">family</span><span class="plain-syntax"> = </span><span class="identifier-syntax">adjectival_idf</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">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">at</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">at</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">down</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) &amp;&amp;</span>
<span class="plain-syntax"> (</span><span class="identifier-syntax">Node::get_type</span><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">at</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next</span><span class="plain-syntax">) == </span><span class="identifier-syntax">IMPERATIVE_NT</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><a href="2-is.html#SP1" class="function-link"><span class="function-syntax">ImperativeSubtrees::accept_body</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">at</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Node::set_type</span><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">at</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next</span><span class="plain-syntax">, </span><span class="identifier-syntax">DEFN_CONT_NT</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><a href="5-adf.html#SP9" class="function-link"><span class="function-syntax">AdjectivalDefinitionFamily::look_for_headers</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">at</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>&#167;5. </b>Since the "Definition:" node might have no code under it (because the code
is actually under the continuation node):
</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">AdjectivalDefinitionFamily::allows_empty</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">AdjectivalDefinitionFamily::allows_empty</span></span>:<br/><a href="5-adf.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">imperative_defn_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="reserved-syntax">imperative_defn</span><span class="plain-syntax"> *</span><span class="identifier-syntax">id</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>&#167;6. </b>The body of code under a definition needs to be set up so that:
</p>
<ul class="items"><li>&#9679; The code expects to make a yes/no decision;
</li><li>&#9679; The pronoun "it" is a local variable referring to the value being tested,
perhaps also with a calling &mdash; consider the example "Definition: A
container (called the sack) is capacious if...".
</li></ul>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">AdjectivalDefinitionFamily::given_body</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">AdjectivalDefinitionFamily::given_body</span></span>:<br/><a href="5-adf.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">imperative_defn_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="reserved-syntax">imperative_defn</span><span class="plain-syntax"> *</span><span class="identifier-syntax">id</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">id_body</span><span class="plain-syntax"> *</span><span class="identifier-syntax">body</span><span class="plain-syntax"> = </span><span class="identifier-syntax">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">body_of_defn</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="5-ptd.html#SP10" class="function-link"><span class="function-syntax">IDTypeData::set_mor</span></a><span class="plain-syntax">(&amp;(</span><span class="identifier-syntax">body</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">type_data</span><span class="plain-syntax">), </span><span class="constant-syntax">DECIDES_CONDITION_MOR</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">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">CALLW</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="identifier-syntax">kind</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="plain-syntax"> </span><a href="8-abp.html#SP1" class="function-link"><span class="function-syntax">AdjectivesByPhrase::define_adjective_by_phrase</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">at</span><span class="plain-syntax">, </span><span class="identifier-syntax">body</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">CALLW</span><span class="plain-syntax">, &amp;</span><span class="identifier-syntax">K</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Frames::enable_it</span><span class="plain-syntax">(&amp;(</span><span class="identifier-syntax">body</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="identifier-syntax">id_stack_frame</span><span class="plain-syntax">), </span><span class="identifier-syntax">CALLW</span><span class="plain-syntax">, </span><span class="identifier-syntax">K</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>&#167;7. </b>The code body for any definition is compiled here:
</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">AdjectivalDefinitionFamily::compile</span><button class="popup" onclick="togglePopup('usagePopup5')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup5">Usage of <span class="code-font"><span class="function-syntax">AdjectivalDefinitionFamily::compile</span></span>:<br/><a href="5-adf.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">imperative_defn_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</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">total_phrases_compiled</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">total_phrases_to_compile</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">imperative_defn</span><span class="plain-syntax"> *</span><span class="identifier-syntax">id</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">, </span><span class="reserved-syntax">imperative_defn</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">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">family</span><span class="plain-syntax"> == </span><span class="identifier-syntax">adjectival_idf</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">RTAdjectives::make_adjective_phrase_package</span><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">body_of_defn</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">CompileImperativeDefn::not_from_phrase</span><span class="plain-syntax">(</span><span class="identifier-syntax">id</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">body_of_defn</span><span class="plain-syntax">, </span><span class="identifier-syntax">total_phrases_compiled</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">total_phrases_to_compile</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">RTAdjectives::compile</span><span class="plain-syntax">();</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP8" class="paragraph-anchor"></a><b>&#167;8. Implementation details. </b>First, some Preform grammar:
</p>
<pre class="Preform-displayed-code all-displayed-code code-font">
<span class="Preform-function-syntax">&lt;definition-header&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">definition</span>
<span class="Preform-function-syntax">&lt;adjective-definition&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;adjective-domain&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">is/are</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;adjective-wording&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">if</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { DEFINED_POSITIVELY, - }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;adjective-domain&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">is/are</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;adjective-wording&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">unless</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { DEFINED_NEGATIVELY, - }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;adjective-domain&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">is/are</span><span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax">&lt;adjective-wording&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { DEFINED_PHRASALLY, - }</span>
<span class="Preform-function-syntax">&lt;adjective-domain&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">(</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">called</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">the</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">==&gt;</span><span class="Preform-plain-syntax"> { 0, -, &lt;&lt;calling&gt;&gt; = TRUE }</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">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">==&gt;</span><span class="Preform-plain-syntax"> { 0, -, &lt;&lt;calling&gt;&gt; = TRUE }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { 0, -, &lt;&lt;calling&gt;&gt; = FALSE }</span>
<span class="Preform-function-syntax">&lt;adjective-wording&gt;</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">rather</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">than</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { 0, -, &lt;&lt;antonym&gt;&gt; = TRUE }</span>
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==&gt;</span><span class="Preform-plain-syntax"> { 0, -, &lt;&lt;antonym&gt;&gt; = FALSE }</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>&#167;9. </b>The following function provides the method of identification:
</p>
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="Preform-constant-syntax">DEFINED_POSITIVELY</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">1</span>
<span class="definition-keyword">define</span> <span class="Preform-constant-syntax">DEFINED_NEGATIVELY</span><span class="Preform-plain-syntax"> -1</span>
<span class="definition-keyword">define</span> <span class="Preform-constant-syntax">DEFINED_PHRASALLY</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">0</span>
<span class="definition-keyword">define</span> <span class="Preform-constant-syntax">DEFINED_IN_SOME_WAY_NOT_YET_KNOWN</span><span class="Preform-plain-syntax"> -2</span>
</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">AdjectivalDefinitionFamily::look_for_headers</span><button class="popup" onclick="togglePopup('usagePopup6')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup6">Usage of <span class="code-font"><span class="function-syntax">AdjectivalDefinitionFamily::look_for_headers</span></span>:<br/><a href="5-adf.html#SP4">&#167;4</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">p</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Node::get_type</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">) == </span><span class="identifier-syntax">IMPERATIVE_NT</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">&lt;definition-header&gt;</span><span class="plain-syntax">(</span><span class="identifier-syntax">Node::get_text</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">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">q</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">Node::get_type</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next</span><span class="plain-syntax">) == </span><span class="identifier-syntax">DEFN_CONT_NT</span><span class="plain-syntax">) </span><span class="identifier-syntax">q</span><span class="plain-syntax"> = </span><span class="identifier-syntax">p</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next</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">q</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">p</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">down</span><span class="plain-syntax">)?(</span><span class="identifier-syntax">p</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">down</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">down</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">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">DNW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">; </span><span class="comment-syntax"> domain name</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="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">; </span><span class="comment-syntax"> calling</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">EMPTY_WORDING</span><span class="plain-syntax">; </span><span class="comment-syntax"> adjective name</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">NW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">; </span><span class="comment-syntax"> negation name</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="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">; </span><span class="comment-syntax"> condition text</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">the_format</span><span class="plain-syntax"> = </span><span class="constant-syntax">DEFINED_IN_SOME_WAY_NOT_YET_KNOWN</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="5-adf.html#SP9_1" class="named-paragraph-link"><span class="named-paragraph">Parse the Q-node as an adjective definition</span><span class="named-paragraph-number">9.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="5-adf.html#SP9_2" class="named-paragraph-link"><span class="named-paragraph">Perform sanity checks on the result</span><span class="named-paragraph-number">9.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="5-adf.html#SP9_3" class="named-paragraph-link"><span class="named-paragraph">Register the resulting adjective</span><span class="named-paragraph-number">9.3</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">the_format</span><span class="plain-syntax"> != </span><span class="constant-syntax">DEFINED_PHRASALLY</span><span class="plain-syntax">) </span><span class="identifier-syntax">p</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">down</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP9_1" class="paragraph-anchor"></a><b>&#167;9.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Parse the Q-node as an adjective definition</span><span class="named-paragraph-number">9.1</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax">&lt;adjective-definition&gt;</span><span class="plain-syntax">(</span><span class="identifier-syntax">Node::get_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">q</span><span class="plain-syntax">))) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">the_format</span><span class="plain-syntax"> = </span><span class="function-syntax">&lt;&lt;r&gt;&gt;</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DNW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax">&lt;adjective-domain&gt;</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax">&lt;&lt;calling&gt;&gt;</span><span class="plain-syntax">) </span><span class="identifier-syntax">CALLW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax">&lt;adjective-domain&gt;</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">AW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax">&lt;adjective-wording&gt;</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax">&lt;&lt;antonym&gt;&gt;</span><span class="plain-syntax">) </span><span class="identifier-syntax">NW</span><span class="plain-syntax"> = </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax">&lt;adjective-wording&gt;</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">the_format</span><span class="plain-syntax"> != </span><span class="constant-syntax">DEFINED_PHRASALLY</span><span class="plain-syntax">)</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">&lt;adjective-definition&gt;</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="5-adf.html#SP9">&#167;9</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP9_2" class="paragraph-anchor"></a><b>&#167;9.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Perform sanity checks on the result</span><span class="named-paragraph-number">9.2</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">the_format</span><span class="plain-syntax"> == </span><span class="constant-syntax">DEFINED_IN_SOME_WAY_NOT_YET_KNOWN</span><span class="plain-syntax">) ||</span>
<span class="plain-syntax"> ((</span><span class="identifier-syntax">the_format</span><span class="plain-syntax"> == </span><span class="constant-syntax">DEFINED_PHRASALLY</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">q</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">down</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">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"Definition tree (%d):\n$T\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">the_format</span><span class="plain-syntax">, </span><span class="identifier-syntax">q</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::definition_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(),</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_DefinitionWithoutCondition</span><span class="plain-syntax">),</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">q</span><span class="plain-syntax">, </span><span class="string-syntax">"a definition must take the form 'Definition: a ... is ... if/unless "</span>
<span class="plain-syntax"> </span><span class="string-syntax">"...' or else 'Definition: a ... is ...: ...'"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="string-syntax">"but I can't make this fit either shape."</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><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">Wordings::mismatched_brackets</span><span class="plain-syntax">(</span><span class="identifier-syntax">AW</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">NW</span><span class="plain-syntax">)) &amp;&amp; (</span><span class="identifier-syntax">Wordings::mismatched_brackets</span><span class="plain-syntax">(</span><span class="identifier-syntax">NW</span><span class="plain-syntax">)))) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"Definition tree:\n$T\n"</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">StandardProblems::definition_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(),</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_BracketedAdjective</span><span class="plain-syntax">),</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">q</span><span class="plain-syntax">, </span><span class="string-syntax">"this definition seems to involve unexpected brackets in the name of "</span>
<span class="plain-syntax"> </span><span class="string-syntax">"the adjective being defined"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="string-syntax">"so I think I must be misreading it."</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>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="5-adf.html#SP9">&#167;9</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP9_3" class="paragraph-anchor"></a><b>&#167;9.3. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Register the resulting adjective</span><span class="named-paragraph-number">9.3</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax"> = </span><span class="identifier-syntax">q</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">adjective_meaning</span><span class="plain-syntax"> *</span><span class="identifier-syntax">am</span><span class="plain-syntax"> = </span><a href="8-am.html#SP9" class="function-link"><span class="function-syntax">AdjectiveMeanings::claim_definition</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">q</span><span class="plain-syntax">, </span><span class="identifier-syntax">the_format</span><span class="plain-syntax">, </span><span class="identifier-syntax">AW</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DNW</span><span class="plain-syntax">, </span><span class="identifier-syntax">CONW</span><span class="plain-syntax">, </span><span class="identifier-syntax">CALLW</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">am</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">"unclaimed adjective definition"</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">NW</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax"> = </span><span class="identifier-syntax">q</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">adjective</span><span class="plain-syntax"> *</span><span class="identifier-syntax">adj</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Adjectives::declare</span><span class="plain-syntax">(</span><span class="identifier-syntax">NW</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">adjective_meaning</span><span class="plain-syntax"> *</span><span class="identifier-syntax">neg</span><span class="plain-syntax"> = </span><a href="8-am.html#SP3" class="function-link"><span class="function-syntax">AdjectiveMeanings::negate</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">am</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="8-aa.html#SP2" class="function-link"><span class="function-syntax">AdjectiveAmbiguity::add_meaning_to_adjective</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">neg</span><span class="plain-syntax">, </span><span class="identifier-syntax">adj</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="5-adf.html#SP9">&#167;9</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP10" class="paragraph-anchor"></a><b>&#167;10. </b>The usual strictures apply:
</p>
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">ADJECTIVE_NAME_VETTING_LINGUISTICS_CALLBACK</span><span class="plain-syntax"> </span><a href="5-adf.html#SP10" class="function-link"><span class="function-syntax">AdjectivalDefinitionFamily::vet_name</span></a>
</pre>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">AdjectivalDefinitionFamily::vet_name</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="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax">&lt;article&gt;</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="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="plain-syntax"> </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_ArticleAsAdjective</span><span class="plain-syntax">),</span>
<span class="plain-syntax"> </span><span class="string-syntax">"a defined adjective cannot consist only of an article such as 'a' or 'the'"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="string-syntax">"since this will lead to parsing ambiguities."</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="function-syntax">&lt;unsuitable-name&gt;</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">problem_count</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">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">StandardProblems::handmade_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(),</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_AdjectivePunctuated</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">"The sentence %1 seems to create an adjective with the name '%2', but "</span>
<span class="plain-syntax"> </span><span class="string-syntax">"adjectives have to be contain only unpunctuated words."</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="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="identifier-syntax">LOOP_THROUGH_WORDING</span><span class="plain-syntax">(</span><span class="identifier-syntax">n</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">NTI::mark_word</span><span class="plain-syntax">(</span><span class="identifier-syntax">n</span><span class="plain-syntax">, </span><span class="function-syntax">&lt;s-adjective&gt;</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP11" class="paragraph-anchor"></a><b>&#167;11. </b>Which leaves only:
</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">definition</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">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">definition_node</span><span class="plain-syntax">; </span><span class="comment-syntax"> current sentence: where the word "Definition" is</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">node</span><span class="plain-syntax">; </span><span class="comment-syntax"> where the actual definition is</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">format</span><span class="plain-syntax">; </span><span class="comment-syntax"> </span><span class="extract"><span class="extract-syntax">+1</span></span><span class="comment-syntax"> to go by condition, </span><span class="extract"><span class="extract-syntax">-1</span></span><span class="comment-syntax"> to negate it, </span><span class="extract"><span class="extract-syntax">0</span></span><span class="comment-syntax"> to use routine</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_to_match</span><span class="plain-syntax">; </span><span class="comment-syntax"> text of condition to match, if </span><span class="extract"><span class="extract-syntax">+1</span></span><span class="comment-syntax"> or </span><span class="extract"><span class="extract-syntax">-1</span></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">domain_calling</span><span class="plain-syntax">; </span><span class="comment-syntax"> what if anything the term is called</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">adjective_meaning</span><span class="plain-syntax"> *</span><span class="identifier-syntax">am_of_def</span><span class="plain-syntax">; </span><span class="comment-syntax"> which adjective meaning</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
<span class="plain-syntax">} </span><span class="reserved-syntax">definition</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">definition</span><span class="plain-syntax"> *</span><span class="function-syntax">AdjectivalDefinitionFamily::new_definition</span><button class="popup" onclick="togglePopup('usagePopup7')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup7">Usage of <span class="code-font"><span class="function-syntax">AdjectivalDefinitionFamily::new_definition</span></span>:<br/>Adjectives by Phrase - <a href="8-abp.html#SP1">&#167;1</a><br/>Adjectives by Condition - <a href="8-abc.html#SP2">&#167;2</a><br/>Adjectives by Inter Function - <a href="8-abif.html#SP2">&#167;2</a><br/>Adjectives by Inter Condition - <a href="8-abic.html#SP2">&#167;2</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">q</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">definition</span><span class="plain-syntax"> *</span><span class="identifier-syntax">def</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">definition</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">def</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">q</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">def</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">format</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">def</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">condition_to_match</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="identifier-syntax">def</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">domain_calling</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="identifier-syntax">def</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">definition_node</span><span class="plain-syntax"> = </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">def</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<ul class="endnotetexts"><li>The structure definition is accessed in 8/abp, 8/abc, 8/abif, 8/abic and here.</li></ul>
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