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4.1 KiB
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<title>2/nc</title>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta http-equiv="Content-Language" content="en-gb">
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<link href="inweb.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<!--Weave of '3/ai' generated by 7-->
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<ul class="crumbs"><li><a href="../webs.html">★</a></li><li><a href="index.html">inflections</a></li><li><a href="index.html#3">Chapter 3: Grammatical Uses of Inflection</a></li><li><b>Article Inflection</b></li></ul><p class="purpose">To inflect "a" into "an", and so forth.</p>
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<ul class="toc"><li><a href="#SP1">§1. The indefinite article trie</a></li></ul><hr class="tocbar">
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<p class="inwebparagraph"><a id="SP1"></a><b>§1. The indefinite article trie. </b>Here we take text such as "UNESCO document" and put an article in front, to
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get "a UNESCO document" (and not "an UNESCO document": these things are much
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trickier than they look).
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</p>
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<pre class="display">
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<span class="identifier">match_avinue</span><span class="plain"> *</span><span class="identifier">indef_trie</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
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<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">ArticleInflection::preface_by_article</span><span class="plain">(</span><span class="identifier">OUTPUT_STREAM</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">initial_text</span><span class="plain">,</span>
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<span class="identifier">PREFORM_LANGUAGE_TYPE</span><span class="plain"> *</span><span class="identifier">nl</span><span class="plain">) {</span>
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<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">indef_trie</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">)</span>
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<span class="identifier">indef_trie</span><span class="plain"> =</span>
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<span class="functiontext">Preform::Nonparsing::define_trie</span><span class="plain">(</span>
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<span class="plain"><</span><span class="identifier">singular</span><span class="plain">-</span><span class="identifier">noun</span><span class="plain">-</span><span class="identifier">to</span><span class="plain">-</span><span class="identifier">its</span><span class="plain">-</span><span class="identifier">indefinite</span><span class="plain">-</span><span class="identifier">article</span><span class="plain">>, </span><span class="identifier">TRIE_START</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">);</span>
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<span class="identifier">wchar_t</span><span class="plain"> *</span><span class="identifier">result</span><span class="plain"> = </span><span class="identifier">Tries::search_avinue</span><span class="plain">(</span><span class="identifier">indef_trie</span><span class="plain">, </span><span class="identifier">initial_text</span><span class="plain">);</span>
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<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">result</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">result</span><span class="plain"> = </span><span class="identifier">L</span><span class="string">"a"</span><span class="plain">;</span>
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<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"%w %S"</span><span class="plain">, </span><span class="identifier">result</span><span class="plain">, </span><span class="identifier">initial_text</span><span class="plain">);</span>
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<span class="plain">}</span>
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</pre>
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<p class="inwebparagraph"></p>
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<p class="endnote">The function ArticleInflection::preface_by_article appears nowhere else.</p>
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<hr class="tocbar">
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<ul class="toc"><li><i>(This section begins Chapter 3: Grammatical Uses of Inflection.)</i></li><li><a href="3-dcl.html">Continue with 'Declensions'</a></li></ul><hr class="tocbar">
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