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<!--Weave of 'Linguistic Constants' 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>Linguistic Constants</b></li></ul></div>
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<p class="purpose">Some basic linguistic constants are defined.</p>
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<ul class="toc"><li><a href="3-lc.html#SP1">§1. Constants</a></li><li><a href="3-lc.html#SP8">§8. Packed references</a></li></ul><hr class="tocbar">
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<p class="commentary firstcommentary"><a id="SP1"></a><b>§1. Constants. </b>First, we support three genders:
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">NO_KNOWN_GENDERS</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span>
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<span class="definition-keyword">define</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="comment-syntax"> or can be used as Scandinavian "common gender"</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">MASCULINE_GENDER</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">FEMININE_GENDER</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP2"></a><b>§2. </b>There are six "persons". The sequence corresponds to the defined constants
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in the English Language extension, which we assume will be followed by other
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languages.
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">NO_KNOWN_PERSONS</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">FIRST_PERSON</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">SECOND_PERSON</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">THIRD_PERSON</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP3"></a><b>§3. </b>And two numbers:
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">NO_KNOWN_NUMBERS</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">SINGULAR_NUMBER</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">PLURAL_NUMBER</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP4"></a><b>§4. </b>And two moods:
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">NO_KNOWN_MOODS</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">ACTIVE_MOOD</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">PASSIVE_MOOD</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP5"></a><b>§5. </b>And two senses:
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">NO_KNOWN_SENSES</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">POSITIVE_SENSE</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">NEGATIVE_SENSE</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP6"></a><b>§6. </b>25 cases sounds like plenty, but some languages are pretty scary this
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way: Hungarian has 18. We only require one case to exist, the nominative,
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which is required to be case 0.
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">MAX_GRAMMATICAL_CASES</span><span class="plain-syntax"> </span><span class="constant-syntax">25</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">NOMINATIVE_CASE</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP7"></a><b>§7. </b>There are at least five tenses, the first four of which are used by Inform
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in English. Some languages can use optional extras; French, for example, uses
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tense 5 for the past historic.
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">NO_KNOWN_TENSES</span><span class="plain-syntax"> </span><span class="constant-syntax">7</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">IS_TENSE</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span><span class="plain-syntax"> </span><span class="comment-syntax"> Present</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">WAS_TENSE</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span><span class="plain-syntax"> </span><span class="comment-syntax"> Past</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">HASBEEN_TENSE</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span><span class="plain-syntax"> </span><span class="comment-syntax"> Present perfect</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">HADBEEN_TENSE</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span><span class="plain-syntax"> </span><span class="comment-syntax"> Past perfect</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">WILLBE_TENSE</span><span class="plain-syntax"> </span><span class="constant-syntax">4</span><span class="plain-syntax"> </span><span class="comment-syntax"> Future (not used in assertions or conditions)</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">CUSTOM1_TENSE</span><span class="plain-syntax"> </span><span class="constant-syntax">5</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">CUSTOM2_TENSE</span><span class="plain-syntax"> </span><span class="constant-syntax">6</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP8"></a><b>§8. Packed references. </b>The following enables even a 32-bit integer to hold an ID reference in the
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range 0 to 128K, together with any combination of gender, person, number,
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mood, case, tense, and sense. This could be optimised further, exploiting
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for example that no grammatical concept ever simultaneously has mood and
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gender, but it seems unlikely that there's any need.
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</p>
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<p class="commentary">If the 128K limit on references ever becomes problematic, which seems very
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unlikely, we might compromise on the number of cases; or we might simply
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change <span class="extract"><span class="extract-syntax">lcon_ti</span></span> to a wider integer type. (It needs to have value copy
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semantics.) If so, though, Preform results will also need to be widened,
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because numerous Preform nonterminals in <a href="../linguistics-module/index.html" class="internal">linguistics</a> return <span class="extract"><span class="extract-syntax">lcon_ti</span></span>
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values, and at present Preform return values are <span class="extract"><span class="extract-syntax">int</span></span>.
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="reserved-syntax">int</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP9"></a><b>§9. </b>And here's how we pack everything in:
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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"> <-- lsb 32 bits msb --></span>
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<span class="plain-syntax"> gender xx..............................</span>
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<span class="plain-syntax"> person ..xx............................</span>
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<span class="plain-syntax"> number ....x...........................</span>
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<span class="plain-syntax"> mood .....x..........................</span>
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<span class="plain-syntax"> case ......xxxxx.....................</span>
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<span class="plain-syntax"> tense ...........xxx..................</span>
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<span class="plain-syntax"> sense ..............x.................</span>
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<span class="plain-syntax"> id ...............xxxxxxxxxxxxxxxxx</span>
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</pre>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">GENDER_LCBASE</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00000001</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">GENDER_LCMASK</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00000003</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">PERSON_LCBASE</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00000004</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">PERSON_LCMASK</span><span class="plain-syntax"> </span><span class="constant-syntax">0x0000000C</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">NUMBER_LCBASE</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00000010</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">NUMBER_LCMASK</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00000010</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">MOOD_LCBASE</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00000020</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">MOOD_LCMASK</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00000020</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">CASE_LCBASE</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00000040</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">CASE_LCMASK</span><span class="plain-syntax"> </span><span class="constant-syntax">0x000007C0</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">TENSE_LCBASE</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00000800</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">TENSE_LCMASK</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00003800</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">SENSE_LCBASE</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00004000</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">SENSE_LCMASK</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00004000</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">ID_LCBASE</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00008000</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">ID_LCUNMASK</span><span class="plain-syntax"> </span><span class="constant-syntax">0x00007FFF</span>
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</pre>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::base</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">Lcon::base</span></span>:<br/>Declensions - <a href="3-dcl.html#SP10">§10</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) { </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax">) </span><span class="constant-syntax">0</span><span class="plain-syntax">; }</span>
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<span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::of_id</span><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">) { </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax">) </span><span class="identifier-syntax">id</span><span class="plain-syntax">*</span><span class="constant-syntax">ID_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::get_id</span><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">) { </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) </span><span class="identifier-syntax">l</span><span class="plain-syntax">/</span><span class="constant-syntax">ID_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::get_gender</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">Lcon::get_gender</span></span>:<br/>Lexical Clusters - <a href="3-lc2.html#SP9">§9</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">) { </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) (</span><span class="identifier-syntax">l</span><span class="plain-syntax"> & </span><span class="constant-syntax">GENDER_LCMASK</span><span class="plain-syntax">) / </span><span class="constant-syntax">GENDER_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::get_person</span><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">) { </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) (</span><span class="identifier-syntax">l</span><span class="plain-syntax"> & </span><span class="constant-syntax">PERSON_LCMASK</span><span class="plain-syntax">) / </span><span class="constant-syntax">PERSON_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::get_number</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">Lcon::get_number</span></span>:<br/>Lexical Clusters - <a href="3-lc2.html#SP9">§9</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">) { </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) (</span><span class="identifier-syntax">l</span><span class="plain-syntax"> & </span><span class="constant-syntax">NUMBER_LCMASK</span><span class="plain-syntax">) / </span><span class="constant-syntax">NUMBER_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::get_mood</span><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">) { </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) (</span><span class="identifier-syntax">l</span><span class="plain-syntax"> & </span><span class="constant-syntax">MOOD_LCMASK</span><span class="plain-syntax">) / </span><span class="constant-syntax">MOOD_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::get_case</span><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">) { </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) (</span><span class="identifier-syntax">l</span><span class="plain-syntax"> & </span><span class="constant-syntax">CASE_LCMASK</span><span class="plain-syntax">) / </span><span class="constant-syntax">CASE_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::get_tense</span><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">) { </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) (</span><span class="identifier-syntax">l</span><span class="plain-syntax"> & </span><span class="constant-syntax">TENSE_LCMASK</span><span class="plain-syntax">) / </span><span class="constant-syntax">TENSE_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::get_sense</span><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">) { </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax">) (</span><span class="identifier-syntax">l</span><span class="plain-syntax"> & </span><span class="constant-syntax">SENSE_LCMASK</span><span class="plain-syntax">) / </span><span class="constant-syntax">SENSE_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::set_id</span><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">id</span><span class="plain-syntax">) { </span><span class="reserved-syntax">return</span><span class="plain-syntax"> (</span><span class="identifier-syntax">l</span><span class="plain-syntax"> & </span><span class="constant-syntax">ID_LCUNMASK</span><span class="plain-syntax">) + </span><span class="identifier-syntax">id</span><span class="plain-syntax">*</span><span class="constant-syntax">ID_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::set_gender</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">Lcon::set_gender</span></span>:<br/>Declensions - <a href="3-dcl.html#SP10">§10</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><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><span class="constant-syntax">GENDER_LCMASK</span><span class="plain-syntax">)) + </span><span class="identifier-syntax">x</span><span class="plain-syntax">*</span><span class="constant-syntax">GENDER_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::set_person</span><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><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><span class="constant-syntax">PERSON_LCMASK</span><span class="plain-syntax">)) + </span><span class="identifier-syntax">x</span><span class="plain-syntax">*</span><span class="constant-syntax">PERSON_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::set_number</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">Lcon::set_number</span></span>:<br/>Declensions - <a href="3-dcl.html#SP10">§10</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><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><span class="constant-syntax">NUMBER_LCMASK</span><span class="plain-syntax">)) + </span><span class="identifier-syntax">x</span><span class="plain-syntax">*</span><span class="constant-syntax">NUMBER_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::set_mood</span><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><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><span class="constant-syntax">MOOD_LCMASK</span><span class="plain-syntax">)) + </span><span class="identifier-syntax">x</span><span class="plain-syntax">*</span><span class="constant-syntax">MOOD_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::set_case</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">Lcon::set_case</span></span>:<br/>Declensions - <a href="3-dcl.html#SP10">§10</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><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><span class="constant-syntax">CASE_LCMASK</span><span class="plain-syntax">)) + </span><span class="identifier-syntax">x</span><span class="plain-syntax">*</span><span class="constant-syntax">CASE_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::set_tense</span><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><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><span class="constant-syntax">TENSE_LCMASK</span><span class="plain-syntax">)) + </span><span class="identifier-syntax">x</span><span class="plain-syntax">*</span><span class="constant-syntax">TENSE_LCBASE</span><span class="plain-syntax">; }</span>
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<span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::set_sense</span><span class="plain-syntax">(</span><span class="constant-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">x</span><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><span class="constant-syntax">SENSE_LCMASK</span><span class="plain-syntax">)) + </span><span class="identifier-syntax">x</span><span class="plain-syntax">*</span><span class="constant-syntax">SENSE_LCBASE</span><span class="plain-syntax">; }</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP10"></a><b>§10. </b></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">Lcon::write_person</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">p</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">p</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">FIRST_PERSON:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"1p"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">SECOND_PERSON:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"2p"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">THIRD_PERSON:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"3p"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::write_number</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">n</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">n</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">SINGULAR_NUMBER:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" s"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">PLURAL_NUMBER:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" p"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::write_gender</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">g</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">g</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NEUTER_GENDER:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" (n)"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">MASCULINE_GENDER:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" (m)"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">FEMININE_GENDER:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" (f)"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::write_sense</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">s</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">s</span><span class="plain-syntax"> == </span><span class="constant-syntax">NEGATIVE_SENSE</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" -ve"</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">s</span><span class="plain-syntax"> == </span><span class="constant-syntax">POSITIVE_SENSE</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" +ve"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::write_mood</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">m</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">m</span><span class="plain-syntax"> == </span><span class="constant-syntax">ACTIVE_MOOD</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" act"</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">m</span><span class="plain-syntax"> == </span><span class="constant-syntax">PASSIVE_MOOD</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" pass"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Lcon::write_tense</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">t</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" "</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">t</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">IS_TENSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"IS_TENSE"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">WAS_TENSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"WAS_TENSE"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">HASBEEN_TENSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"HASBEEN_TENSE"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">HADBEEN_TENSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"HADBEEN_TENSE"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">WILLBE_TENSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"WILLBE_TENSE"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">CUSTOM1_TENSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"CUSTOM1_TENSE"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">CUSTOM2_TENSE:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"CUSTOM2_TENSE"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">default:</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"<invalid-tense>"</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax">}</span>
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</pre>
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