mirror of
https://github.com/ganelson/inform.git
synced 2024-07-05 08:34:22 +03:00
242 lines
33 KiB
HTML
242 lines
33 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<head>
|
|
<title>Articles</title>
|
|
<link href="../docs-assets/Breadcrumbs.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<meta name="viewport" content="width=device-width initial-scale=1">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<meta http-equiv="Content-Language" content="en-gb">
|
|
|
|
<link href="../docs-assets/Contents.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Progress.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Navigation.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Fonts.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Base.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<script>
|
|
function togglePopup(material_id) {
|
|
var popup = document.getElementById(material_id);
|
|
popup.classList.toggle("show");
|
|
}
|
|
</script>
|
|
|
|
<link href="../docs-assets/Popups.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Colours.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Preform-Colours.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
|
|
</head>
|
|
<body class="commentary-font">
|
|
<nav role="navigation">
|
|
<h1><a href="../index.html">
|
|
<img src="../docs-assets/Inform.png" height=72">
|
|
</a></h1>
|
|
<ul><li><a href="../compiler.html">compiler tools</a></li>
|
|
<li><a href="../other.html">other tools</a></li>
|
|
<li><a href="../extensions.html">extensions and kits</a></li>
|
|
<li><a href="../units.html">unit test tools</a></li>
|
|
</ul><h2>Compiler Webs</h2><ul>
|
|
<li><a href="../inbuild/index.html">inbuild</a></li>
|
|
<li><a href="../inform7/index.html">inform7</a></li>
|
|
<li><a href="../inter/index.html">inter</a></li>
|
|
</ul><h2>Inbuild Modules</h2><ul>
|
|
<li><a href="../supervisor-module/index.html">supervisor</a></li>
|
|
</ul><h2>Inform7 Modules</h2><ul>
|
|
<li><a href="../core-module/index.html">core</a></li>
|
|
<li><a href="../kinds-module/index.html">kinds</a></li>
|
|
<li><a href="../if-module/index.html">if</a></li>
|
|
<li><a href="../multimedia-module/index.html">multimedia</a></li>
|
|
<li><a href="../index-module/index.html">index</a></li>
|
|
</ul><h2>Inter Modules</h2><ul>
|
|
<li><a href="../bytecode-module/index.html">bytecode</a></li>
|
|
<li><a href="../building-module/index.html">building</a></li>
|
|
<li><a href="../codegen-module/index.html">codegen</a></li>
|
|
</ul><h2>Services</h2><ul>
|
|
<li><a href="../arch-module/index.html">arch</a></li>
|
|
<li><a href="../syntax-module/index.html">syntax</a></li>
|
|
<li><a href="../words-module/index.html">words</a></li>
|
|
<li><a href="../html-module/index.html">html</a></li>
|
|
<li><a href="../inflections-module/index.html">inflections</a></li>
|
|
<li><a href="index.html"><span class="selectedlink">linguistics</span></a></li>
|
|
<li><a href="../problems-module/index.html">problems</a></li>
|
|
<li><a href="../../../inweb/docs/foundation-module/index.html">foundation</a></li>
|
|
|
|
</ul>
|
|
</nav>
|
|
<main role="main">
|
|
<!--Weave of 'Articles' generated by Inweb-->
|
|
<div class="breadcrumbs">
|
|
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Services</a></li><li><a href="index.html">linguistics</a></li><li><a href="index.html#2">Chapter 2: NP Categories</a></li><li><b>Articles</b></li></ul></div>
|
|
<p class="purpose">Preform grammar for the articles.</p>
|
|
|
|
<ul class="toc"><li><a href="2-art.html#SP1">§1. Articles</a></li><li><a href="2-art.html#SP3">§3. Stock references</a></li><li><a href="2-art.html#SP4">§4. English articles</a></li><li><a href="2-art.html#SP7">§7. Removing articles</a></li></ul><hr class="tocbar">
|
|
|
|
<p class="commentary firstcommentary"><a id="SP1"></a><b>§1. Articles. </b>Article objects contain no interesting data: in effect, the <a href="2-art.html#SP1" class="internal">article</a> class
|
|
is an enumeration.
|
|
</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">article</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">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">linguistic_stock_item</span><span class="plain-syntax"> *</span><span class="identifier-syntax">in_stock</span><span class="plain-syntax">;</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
|
|
<span class="plain-syntax">} </span><span class="reserved-syntax">article</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>The structure article is accessed in 1/sc, 2/adj, 2/daq, 2/nns, 2/prn, 3/vrb, 3/vu, 3/prp and here.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP2"></a><b>§2. </b>The stock of articles is fixed at three:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">grammatical_category</span><span class="plain-syntax"> *</span><span class="identifier-syntax">articles_category</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="reserved-syntax">article</span><span class="plain-syntax"> *</span><span class="identifier-syntax">definite_article</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="reserved-syntax">article</span><span class="plain-syntax"> *</span><span class="identifier-syntax">indefinite_article</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Articles::create_category</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">Articles::create_category</span></span>:<br/>Stock Control - <a href="1-sc.html#SP2">§2</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">articles_category</span><span class="plain-syntax"> = </span><a href="1-sc.html#SP3" class="function-link"><span class="function-syntax">Stock::new_category</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"article"</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">articles_category</span><span class="plain-syntax">, </span><span class="constant-syntax">LOG_GRAMMATICAL_CATEGORY_MTID</span><span class="plain-syntax">, </span><a href="2-art.html#SP2" class="function-link"><span class="function-syntax">Articles::log_item</span></a><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">definite_article</span><span class="plain-syntax"> = </span><a href="2-art.html#SP2" class="function-link"><span class="function-syntax">Articles::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"definite article"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">indefinite_article</span><span class="plain-syntax"> = </span><a href="2-art.html#SP2" class="function-link"><span class="function-syntax">Articles::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"indefinite article"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">article</span><span class="plain-syntax"> *</span><span class="function-syntax">Articles::new</span><span class="plain-syntax">(</span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">article</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">article</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">P</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::duplicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">P</span><span class="plain-syntax">-></span><span class="element-syntax">in_stock</span><span class="plain-syntax"> = </span><a href="1-sc.html#SP6" class="function-link"><span class="function-syntax">Stock::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">articles_category</span><span class="plain-syntax">, </span><span class="identifier-syntax">STORE_POINTER_article</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">return</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">void</span><span class="plain-syntax"> </span><span class="function-syntax">Articles::log_item</span><span class="plain-syntax">(</span><span class="reserved-syntax">grammatical_category</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cat</span><span class="plain-syntax">, </span><span class="identifier-syntax">general_pointer</span><span class="plain-syntax"> </span><span class="identifier-syntax">data</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">article</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_article</span><span class="plain-syntax">(</span><span class="identifier-syntax">data</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">"%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP3"></a><b>§3. Stock references. </b>We ignore case in articles, but do take note of number and gender.
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="function-syntax">Articles::use</span><span class="plain-syntax">(</span><span class="reserved-syntax">article</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</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><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">g</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">lcon</span><span class="plain-syntax"> = </span><a href="1-sc.html#SP8" class="function-link"><span class="function-syntax">Stock::to_lcon</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">-></span><span class="element-syntax">in_stock</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">lcon</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Lcon::set_number</span><span class="plain-syntax">(</span><span class="identifier-syntax">lcon</span><span class="plain-syntax">, </span><span class="identifier-syntax">n</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">lcon</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Lcon::set_gender</span><span class="plain-syntax">(</span><span class="identifier-syntax">lcon</span><span class="plain-syntax">, </span><span class="identifier-syntax">g</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">lcon</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Articles::use_a_to_f</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">Articles::use_a_to_f</span></span>:<br/><a href="2-art.html#SP4">§4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">article</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">r</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="2-art.html#SP3" class="function-link"><span class="function-syntax">Articles::use</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, (</span><span class="identifier-syntax">r</span><span class="plain-syntax"> >= </span><span class="constant-syntax">3</span><span class="plain-syntax">)?</span><span class="identifier-syntax">PLURAL_NUMBER:SINGULAR_NUMBER</span><span class="plain-syntax">, (</span><span class="identifier-syntax">r</span><span class="plain-syntax"> % </span><span class="constant-syntax">3</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">article</span><span class="plain-syntax"> *</span><span class="function-syntax">Articles::from_lcon</span><span class="plain-syntax">(</span><span class="identifier-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">lcon</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">linguistic_stock_item</span><span class="plain-syntax"> *</span><span class="identifier-syntax">item</span><span class="plain-syntax"> = </span><a href="1-sc.html#SP8" class="function-link"><span class="function-syntax">Stock::from_lcon</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">lcon</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">item</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</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">RETRIEVE_POINTER_article</span><span class="plain-syntax">(</span><span class="identifier-syntax">item</span><span class="plain-syntax">-></span><span class="element-syntax">data</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Articles::write_lcon</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">Articles::write_lcon</span></span>:<br/>Diagrams - <a href="4-dgr.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="identifier-syntax">lcon_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">lcon</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">article</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax"> = </span><a href="2-art.html#SP3" class="function-link"><span class="function-syntax">Articles::from_lcon</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">lcon</span><span class="plain-syntax">);</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="identifier-syntax">P</span><span class="plain-syntax">-></span><span class="element-syntax">name</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Lcon::write_number</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">Lcon::get_number</span><span class="plain-syntax">(</span><span class="identifier-syntax">lcon</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Lcon::write_gender</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">Lcon::get_gender</span><span class="plain-syntax">(</span><span class="identifier-syntax">lcon</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP4"></a><b>§4. English articles. </b>A small subterfuge is used here for efficiency's sake. In principle we should
|
|
test and distinguish all six combined number/gender forms of the articles,
|
|
but that would be fractionally slower in English where there are so few
|
|
possibilities. The indirection below enables <definite-article-forms> and
|
|
<indefinite-article-forms> to be only partially filled in, with the amount
|
|
differing in different languages.
|
|
</p>
|
|
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><indefinite-article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> R[1]</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><definite-article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> R[1]</span>
|
|
|
|
<span class="Preform-function-syntax"><definite-article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><definite-article-forms></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> Articles::use_a_to_f(definite_article, R[1])</span>
|
|
|
|
<span class="Preform-function-syntax"><indefinite-article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><indefinite-article-forms></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> Articles::use_a_to_f(indefinite_article, R[1])</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="SP5"></a><b>§5. </b>The articles need to be single words, and the following two productions
|
|
have an unusual convention: they are required to have production numbers
|
|
which encode both the implied grammatical number and gender. These numbers
|
|
mean:
|
|
</p>
|
|
|
|
<p class="commentary"><span class="extract"><span class="Preform-extract-syntax">/a/</span></span> singular, neuter; <span class="extract"><span class="Preform-extract-syntax">/b/</span></span> singular, masculine; <span class="extract"><span class="Preform-extract-syntax">/c/</span></span> singular, feminine;
|
|
<span class="extract"><span class="Preform-extract-syntax">/d/</span></span> plural, neuter; <span class="extract"><span class="Preform-extract-syntax">/e/</span></span> plural, masculine; <span class="extract"><span class="Preform-extract-syntax">/f/</span></span> plural, feminine.
|
|
</p>
|
|
|
|
<p class="commentary">But since in English gender doesn't appear in articles, and "the" is ambiguous
|
|
as to number in any case, we end up with something quite dull as the default:
|
|
</p>
|
|
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><definite-article-forms></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">/a/</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">the</span>
|
|
|
|
<span class="Preform-function-syntax"><indefinite-article-forms></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">/a/</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">a/an</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">/d/</span><span class="Preform-plain-syntax"> </span><span class="Preform-constant-syntax">some</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="SP6"></a><b>§6. </b>It's very important to parse articles, which occur very often, rapidly. So
|
|
we give these special priority in Preform optimisation; they have their very
|
|
own private bit.
|
|
</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">Articles::mark_for_preform</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">Articles::mark_for_preform</span></span>:<br/>Linguistics Module - <a href="1-lm.html#SP3">§3</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">NTI::give_nt_reserved_incidence_bit</span><span class="plain-syntax">(</span><span class="function-syntax"><article></span><span class="plain-syntax">, </span><span class="identifier-syntax">ARTICLE_RES_NT_BIT</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">NTI::give_nt_reserved_incidence_bit</span><span class="plain-syntax">(</span><span class="function-syntax"><definite-article></span><span class="plain-syntax">, </span><span class="identifier-syntax">ARTICLE_RES_NT_BIT</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">NTI::give_nt_reserved_incidence_bit</span><span class="plain-syntax">(</span><span class="function-syntax"><indefinite-article></span><span class="plain-syntax">, </span><span class="identifier-syntax">ARTICLE_RES_NT_BIT</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">NTI::give_nt_reserved_incidence_bit</span><span class="plain-syntax">(</span><span class="function-syntax"><definite-article-forms></span><span class="plain-syntax">, </span><span class="identifier-syntax">ARTICLE_RES_NT_BIT</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">NTI::give_nt_reserved_incidence_bit</span><span class="plain-syntax">(</span><span class="function-syntax"><indefinite-article-forms></span><span class="plain-syntax">, </span><span class="identifier-syntax">ARTICLE_RES_NT_BIT</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP7"></a><b>§7. Removing articles. </b>These are useful for stripping optional articles from text:
|
|
</p>
|
|
|
|
<pre class="Preform-displayed-code all-displayed-code code-font">
|
|
<span class="Preform-function-syntax"><optional-definite-article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><definite-article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> R[1]</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span>
|
|
|
|
<span class="Preform-function-syntax"><optional-indefinite-article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><indefinite-article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> R[1]</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span>
|
|
|
|
<span class="Preform-function-syntax"><optional-article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">|</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> R[1]</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span>
|
|
|
|
<span class="Preform-function-syntax"><compulsory-article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">::=</span>
|
|
<span class="Preform-plain-syntax"> </span><span class="Preform-function-syntax"><article></span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">...</span><span class="Preform-plain-syntax"> </span><span class="Preform-reserved-syntax">==></span><span class="Preform-plain-syntax"> R[1]</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="SP8"></a><b>§8. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="function-syntax">Articles::remove_the</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">Articles::remove_the</span></span>:<br/>Determiners and Quantifiers - <a href="2-daq.html#SP18">§18</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">Wordings::length</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">) > </span><span class="constant-syntax">1</span><span class="plain-syntax">) && (</span><span class="function-syntax"><optional-definite-article></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">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax"><optional-definite-article></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">return</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">wording</span><span class="plain-syntax"> </span><span class="function-syntax">Articles::remove_article</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="identifier-syntax">Wordings::nonempty</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)) {</span>
|
|
<span class="plain-syntax"> </span><span class="function-syntax"><optional-article></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">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">GET_RW</span><span class="plain-syntax">(</span><span class="function-syntax"><optional-article></span><span class="plain-syntax">, </span><span class="constant-syntax">1</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">W</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<nav role="progress"><div class="progresscontainer">
|
|
<ul class="progressbar"><li class="progressprev"><a href="2-adj.html">❮</a></li><li class="progresschapter"><a href="P-wtmd.html">P</a></li><li class="progresschapter"><a href="1-lm.html">1</a></li><li class="progresscurrentchapter">2</li><li class="progresssection"><a href="2-adj.html">adj</a></li><li class="progresscurrent">art</li><li class="progresssection"><a href="2-daq.html">daq</a></li><li class="progresssection"><a href="2-nns.html">nns</a></li><li class="progresssection"><a href="2-prn.html">prn</a></li><li class="progresschapter"><a href="3-vrb.html">3</a></li><li class="progresschapter"><a href="4-dgr.html">4</a></li><li class="progressnext"><a href="2-daq.html">❯</a></li></ul></div>
|
|
</nav><!--End of weave-->
|
|
|
|
</main>
|
|
</body>
|
|
</html>
|
|
|