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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Codename Roadsign</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">
</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>Other Tools</h2><ul>
<li><a href="../inblorb/index.html">inblorb</a></li>
<li><a href="index.html"><span class="selectedlink">indoc</span></a></li>
<li><a href="../inpolicy/index.html">inpolicy</a></li>
<li><a href="../inrtps/index.html">inrtps</a></li>
</ul><h2>Foundation</h2><ul>
<li><a href="../../../inweb/docs/foundation-module/index.html">foundation</a></li>
</ul>
</nav>
<main role="main">
<!--Weave of 'Codename Roadsign' generated by Inweb-->
<div class="breadcrumbs">
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../other.html">Other Tools</a></li><li><a href="index.html">indoc</a></li><li><a href="index.html#4">Chapter 4: Navigation Styles</a></li><li><b>Codename Roadsign</b></li></ul></div>
<p class="purpose">The "roadsign" style of navigational gadgets.</p>
<ul class="toc"><li><a href="4-cr.html#SP1">&#167;1. Creation</a></li><li><a href="4-cr.html#SP2">&#167;2. Top</a></li><li><a href="4-cr.html#SP5">&#167;5. Index top</a></li><li><a href="4-cr.html#SP6">&#167;6. Middle</a></li><li><a href="4-cr.html#SP7">&#167;7. Example top</a></li><li><a href="4-cr.html#SP8">&#167;8. Utility routines</a></li><li><a href="4-cr.html#SP12">&#167;12. Ecce romani</a></li></ul><hr class="tocbar">
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. Creation. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">navigation_design</span><span class="plain-syntax"> *</span><span class="function-syntax">Roadsign::create</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">Roadsign::create</span></span>:<br/>Navigational Designs - <a href="4-nd.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="reserved-syntax">navigation_design</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ND</span><span class="plain-syntax"> = </span><a href="4-nd.html#SP1" class="function-link"><span class="function-syntax">Nav::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"roadsign"</span><span class="plain-syntax">, </span><span class="constant-syntax">TRUE</span><span class="plain-syntax">, </span><span class="constant-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">ND</span><span class="plain-syntax">, </span><span class="constant-syntax">RENDER_VOLUME_TITLE_MTID</span><span class="plain-syntax">, </span><a href="4-cr.html#SP2" class="function-link"><span class="function-syntax">Roadsign::roadsign_volume_title</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">ND</span><span class="plain-syntax">, </span><span class="constant-syntax">RENDER_CHAPTER_TITLE_MTID</span><span class="plain-syntax">, </span><a href="4-cr.html#SP3" class="function-link"><span class="function-syntax">Roadsign::roadsign_chapter_title</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">ND</span><span class="plain-syntax">, </span><span class="constant-syntax">RENDER_SECTION_TITLE_MTID</span><span class="plain-syntax">, </span><a href="4-cr.html#SP4" class="function-link"><span class="function-syntax">Roadsign::roadsign_section_title</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">ND</span><span class="plain-syntax">, </span><span class="constant-syntax">RENDER_INDEX_TOP_MTID</span><span class="plain-syntax">, </span><a href="4-cr.html#SP5" class="function-link"><span class="function-syntax">Roadsign::roadsign_navigation_index_top</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">ND</span><span class="plain-syntax">, </span><span class="constant-syntax">RENDER_NAV_MIDDLE_MTID</span><span class="plain-syntax">, </span><a href="4-cr.html#SP6" class="function-link"><span class="function-syntax">Roadsign::roadsign_navigation_middle</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">ND</span><span class="plain-syntax">, </span><span class="constant-syntax">RENDER_EXAMPLE_TOP_MTID</span><span class="plain-syntax">, </span><a href="4-cr.html#SP7" class="function-link"><span class="function-syntax">Roadsign::roadsign_navigation_example_top</span></a><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">ND</span><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. Top. </b>At the front end of a section, before any of its text.
</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">Roadsign::roadsign_volume_title</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">Roadsign::roadsign_volume_title</span></span>:<br/><a href="4-cr.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">navigation_design</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="reserved-syntax">volume</span><span class="plain-syntax"> *</span><span class="identifier-syntax">V</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-cr.html#SP2_1" class="named-paragraph-link"><span class="named-paragraph">Render a volume heading</span><span class="named-paragraph-number">2.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-cr.html#SP2_2" class="named-paragraph-link"><span class="named-paragraph">Render a chapter-contents table</span><span class="named-paragraph-number">2.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</span><span class="plain-syntax">); </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-cr.html#SP2_3" class="named-paragraph-link"><span class="named-paragraph">Render the volume-top roadsign</span><span class="named-paragraph-number">2.3</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP2_1" class="paragraph-anchor"></a><b>&#167;2.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Render a volume heading</span><span class="named-paragraph-number">2.1</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">partn</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">no_volumes</span><span class="plain-syntax"> &gt; </span><span class="constant-syntax">1</span><span class="plain-syntax">) </span><a href="4-cr.html#SP12" class="function-link"><span class="function-syntax">Roadsign::roman_numeral</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">partn</span><span class="plain-syntax">, </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">allocation_id</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"volumeheading\""</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%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">partn</span><span class="plain-syntax">, </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">vol_title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">partn</span><span class="plain-syntax">)</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-cr.html#SP2">&#167;2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP2_2" class="paragraph-anchor"></a><b>&#167;2.2. </b>Some cumbersome Perl to produce a balanced two-column chapter listing:
</p>
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Render a chapter-contents table</span><span class="named-paragraph-number">2.2</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"table"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"centredtable\""</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">nch</span><span class="plain-syntax"> = </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">vol_chapter_count</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">rows</span><span class="plain-syntax"> = </span><span class="identifier-syntax">nch</span><span class="plain-syntax">/2;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (2 * </span><span class="identifier-syntax">rows</span><span class="plain-syntax"> &lt; </span><span class="identifier-syntax">nch</span><span class="plain-syntax">) </span><span class="identifier-syntax">rows</span><span class="plain-syntax">++;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">rc</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">; </span><span class="identifier-syntax">rc</span><span class="plain-syntax"> &lt; </span><span class="identifier-syntax">rows</span><span class="plain-syntax">; </span><span class="identifier-syntax">rc</span><span class="plain-syntax">++) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">chapter</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax"> = </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapters</span><span class="plain-syntax">[</span><span class="identifier-syntax">rc</span><span class="plain-syntax">];</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">chapter</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OC</span><span class="plain-syntax"> = </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapters</span><span class="plain-syntax">[</span><span class="identifier-syntax">rc</span><span class="plain-syntax"> + </span><span class="identifier-syntax">rows</span><span class="plain-syntax">];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN</span><span class="plain-syntax">(</span><span class="string-syntax">"tr"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN</span><span class="plain-syntax">(</span><span class="string-syntax">"td"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP17" class="function-link"><span class="function-syntax">HTML::begin_link_with_class</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"standardlink"</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_URL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"span"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"chapterlisting\""</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">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_full_title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"span"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP17" class="function-link"><span class="function-syntax">HTML::end_link</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</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">"&amp;#160;&amp;#160;&amp;#160;&lt;/td&gt;"</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">OC</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN</span><span class="plain-syntax">(</span><span class="string-syntax">"td"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP17" class="function-link"><span class="function-syntax">HTML::begin_link_with_class</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"standardlink"</span><span class="plain-syntax">, </span><span class="identifier-syntax">OC</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_URL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"span"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"chapterlisting\""</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">OC</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_full_title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"span"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP17" class="function-link"><span class="function-syntax">HTML::end_link</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</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">"&amp;#160;&amp;#160;&amp;#160;&lt;/td&gt;"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"tr"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"table"</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-cr.html#SP2">&#167;2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP2_3" class="paragraph-anchor"></a><b>&#167;2.3. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Render the volume-top roadsign</span><span class="named-paragraph-number">2.3</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><a href="4-cr.html#SP9" class="function-link"><span class="function-syntax">Roadsign::roadsign_begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">txt</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">txt</span><span class="plain-syntax">, </span><span class="string-syntax">"Start reading here: %c%S"</span><span class="plain-syntax">, </span><span class="constant-syntax">SECTION_SYMBOL</span><span class="plain-syntax">, </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">sections</span><span class="plain-syntax">[0]-&gt;</span><span class="element-syntax">title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-right.png"</span><span class="plain-syntax">, </span><span class="identifier-syntax">txt</span><span class="plain-syntax">, </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapters</span><span class="plain-syntax">[0]-&gt;</span><span class="element-syntax">chapter_URL</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">no_volumes</span><span class="plain-syntax"> &gt; </span><span class="constant-syntax">1</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">v</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">; </span><span class="identifier-syntax">v</span><span class="plain-syntax"> &lt; </span><span class="identifier-syntax">no_volumes</span><span class="plain-syntax">; </span><span class="identifier-syntax">v</span><span class="plain-syntax">++) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">icon</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">v</span><span class="plain-syntax"> &lt; </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">allocation_id</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">icon</span><span class="plain-syntax">, </span><span class="string-syntax">"arrow-up"</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">v</span><span class="plain-syntax"> &gt; </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">allocation_id</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">icon</span><span class="plain-syntax">, </span><span class="string-syntax">"arrow-down"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/docs/foundation-module/4-sm.html#SP8" class="function-link"><span class="function-syntax">Str::len</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">icon</span><span class="plain-syntax">) &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">volume</span><span class="plain-syntax"> *</span><span class="identifier-syntax">LV</span><span class="plain-syntax"> = </span><span class="identifier-syntax">volumes</span><span class="plain-syntax">[</span><span class="identifier-syntax">v</span><span class="plain-syntax">];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">txt</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP12" class="function-link"><span class="function-syntax">Roadsign::roman_numeral</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">txt</span><span class="plain-syntax">, </span><span class="identifier-syntax">v</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">txt</span><span class="plain-syntax">, </span><span class="string-syntax">"%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">LV</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">vol_title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">img</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">img</span><span class="plain-syntax">, </span><span class="string-syntax">"%S.png"</span><span class="plain-syntax">, </span><span class="identifier-syntax">icon</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">img</span><span class="plain-syntax">, </span><span class="identifier-syntax">txt</span><span class="plain-syntax">, </span><span class="identifier-syntax">LV</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">vol_URL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">txt</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">img</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">icon</span><span class="plain-syntax">)</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">no_examples</span><span class="plain-syntax"> &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">NUMBER_CREATED</span><span class="plain-syntax">(</span><span class="reserved-syntax">index_lemma</span><span class="plain-syntax">) &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-down-right.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"Indexes of the examples and definitions"</span><span class="plain-syntax">, </span><span class="identifier-syntax">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">examples_alphabetical_leafname</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">no_examples</span><span class="plain-syntax"> &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-down-right.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"Indexes of the examples"</span><span class="plain-syntax">, </span><span class="identifier-syntax">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">examples_alphabetical_leafname</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">NUMBER_CREATED</span><span class="plain-syntax">(</span><span class="reserved-syntax">index_lemma</span><span class="plain-syntax">) &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-down-right.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"Index of definitions"</span><span class="plain-syntax">, </span><span class="identifier-syntax">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">definitions_index_leafname</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP11" class="function-link"><span class="function-syntax">Roadsign::roadsign_end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-cr.html#SP2">&#167;2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>&#167;3. </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">Roadsign::roadsign_chapter_title</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">Roadsign::roadsign_chapter_title</span></span>:<br/><a href="4-cr.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">navigation_design</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="reserved-syntax">volume</span><span class="plain-syntax"> *</span><span class="identifier-syntax">V</span><span class="plain-syntax">, </span><span class="reserved-syntax">chapter</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-cr.html#SP3_1" class="named-paragraph-link"><span class="named-paragraph">Render a chapter heading</span><span class="named-paragraph-number">3.1</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-cr.html#SP3_2" class="named-paragraph-link"><span class="named-paragraph">Render a section-contents listing</span><span class="named-paragraph-number">3.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP8" class="function-link"><span class="function-syntax">Roadsign::roadsign_chapter_jumps</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">V</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP3_1" class="paragraph-anchor"></a><b>&#167;3.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Render a chapter heading</span><span class="named-paragraph-number">3.1</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"chapterheading\""</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/docs/foundation-module/4-sm.html#SP8" class="function-link"><span class="function-syntax">Str::len</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_anchor</span><span class="plain-syntax">) &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP17" class="function-link"><span class="function-syntax">HTML::anchor</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_anchor</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">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_full_title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-cr.html#SP3">&#167;3</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP3_2" class="paragraph-anchor"></a><b>&#167;3.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Render a section-contents listing</span><span class="named-paragraph-number">3.2</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"chaptercontents\""</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">lcount</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">section</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">sections</span><span class="plain-syntax">[0]; </span><span class="identifier-syntax">S</span><span class="plain-syntax">; </span><span class="identifier-syntax">S</span><span class="plain-syntax"> = </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_section</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">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">in_which_chapter</span><span class="plain-syntax"> == </span><span class="identifier-syntax">C</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">lcount</span><span class="plain-syntax">++ &gt; </span><span class="constant-syntax">0</span><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>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP17" class="function-link"><span class="function-syntax">HTML::begin_link_with_class</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"standardlink"</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">section_URL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"span"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"chaptercontentsitem\""</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">"%c%S"</span><span class="plain-syntax">, </span><span class="constant-syntax">SECTION_SYMBOL</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"span"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP17" class="function-link"><span class="function-syntax">HTML::end_link</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-cr.html#SP3">&#167;3</a>.</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">Roadsign::roadsign_section_title</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">Roadsign::roadsign_section_title</span></span>:<br/><a href="4-cr.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">navigation_design</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="reserved-syntax">volume</span><span class="plain-syntax"> *</span><span class="identifier-syntax">V</span><span class="plain-syntax">, </span><span class="reserved-syntax">chapter</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="reserved-syntax">section</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"sectionheading\""</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/docs/foundation-module/4-sm.html#SP8" class="function-link"><span class="function-syntax">Str::len</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">section_anchor</span><span class="plain-syntax">) &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP17" class="function-link"><span class="function-syntax">HTML::anchor</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">section_anchor</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">"%c%S"</span><span class="plain-syntax">, </span><span class="constant-syntax">SECTION_SYMBOL</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</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. Index top. </b>And this is a variant for index pages, such as the index of examples.
</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">Roadsign::roadsign_navigation_index_top</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">Roadsign::roadsign_navigation_index_top</span></span>:<br/><a href="4-cr.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">navigation_design</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="reserved-syntax">filename</span><span class="plain-syntax">, </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">title</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"chapterheading\""</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">title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP9" class="function-link"><span class="function-syntax">Roadsign::roadsign_begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">no_examples</span><span class="plain-syntax"> &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/docs/foundation-module/4-sm.html#SP19" class="function-link"><span class="function-syntax">Str::ne</span></a><span class="plain-syntax">(</span><span class="reserved-syntax">filename</span><span class="plain-syntax">, </span><span class="identifier-syntax">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">examples_alphabetical_leafname</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-right.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"Examples in Alphabetical Order"</span><span class="plain-syntax">, </span><span class="identifier-syntax">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">examples_alphabetical_leafname</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/docs/foundation-module/4-sm.html#SP19" class="function-link"><span class="function-syntax">Str::ne</span></a><span class="plain-syntax">(</span><span class="reserved-syntax">filename</span><span class="plain-syntax">, </span><span class="identifier-syntax">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">examples_thematic_leafname</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-right.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"Examples in Thematic Order"</span><span class="plain-syntax">, </span><span class="identifier-syntax">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">examples_thematic_leafname</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/docs/foundation-module/4-sm.html#SP19" class="function-link"><span class="function-syntax">Str::ne</span></a><span class="plain-syntax">(</span><span class="reserved-syntax">filename</span><span class="plain-syntax">, </span><span class="identifier-syntax">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">examples_numerical_leafname</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-right.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"Examples in Numerical Order"</span><span class="plain-syntax">, </span><span class="identifier-syntax">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">examples_numerical_leafname</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">NUMBER_CREATED</span><span class="plain-syntax">(</span><span class="reserved-syntax">index_lemma</span><span class="plain-syntax">) &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/docs/foundation-module/4-sm.html#SP19" class="function-link"><span class="function-syntax">Str::ne</span></a><span class="plain-syntax">(</span><span class="reserved-syntax">filename</span><span class="plain-syntax">, </span><span class="identifier-syntax">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">definitions_index_leafname</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-right.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"General Index"</span><span class="plain-syntax">, </span><span class="identifier-syntax">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">definitions_index_leafname</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">v</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">; </span><span class="identifier-syntax">v</span><span class="plain-syntax"> &lt; </span><span class="identifier-syntax">no_volumes</span><span class="plain-syntax">; </span><span class="identifier-syntax">v</span><span class="plain-syntax">++) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">volume</span><span class="plain-syntax"> *</span><span class="identifier-syntax">V</span><span class="plain-syntax"> = </span><span class="identifier-syntax">volumes</span><span class="plain-syntax">[</span><span class="identifier-syntax">v</span><span class="plain-syntax">];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">text</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP12" class="function-link"><span class="function-syntax">Roadsign::roman_numeral</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">text</span><span class="plain-syntax">, </span><span class="identifier-syntax">v</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">text</span><span class="plain-syntax">, </span><span class="string-syntax">"%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">vol_title</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">no_volumes</span><span class="plain-syntax"> == </span><span class="constant-syntax">1</span><span class="plain-syntax">) </span><a href="../../../inweb/docs/foundation-module/4-sm.html#SP17" class="function-link"><span class="function-syntax">Str::copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">text</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Contents"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-up-left.png"</span><span class="plain-syntax">, </span><span class="identifier-syntax">text</span><span class="plain-syntax">, </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">vol_URL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">text</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP11" class="function-link"><span class="function-syntax">Roadsign::roadsign_end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-haj.html#SP11" class="function-link"><span class="function-syntax">HTMLUtilities::ruled_line</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</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. Middle. </b>At the middle part, when the text is over, but before any example cues.
</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">Roadsign::roadsign_navigation_middle</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">Roadsign::roadsign_navigation_middle</span></span>:<br/><a href="4-cr.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">navigation_design</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="reserved-syntax">volume</span><span class="plain-syntax"> *</span><span class="identifier-syntax">V</span><span class="plain-syntax">, </span><span class="reserved-syntax">section</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="2-haj.html#SP11" class="function-link"><span class="function-syntax">HTMLUtilities::ruled_line</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP14" class="function-link"><span class="function-syntax">HTML::begin_div_with_class_S</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"roadsigns"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">chapter</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax"> = </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">in_which_chapter</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP9" class="function-link"><span class="function-syntax">Roadsign::roadsign_begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-cr.html#SP6_1" class="named-paragraph-link"><span class="named-paragraph">Add home, back and forward directions to the roadsign</span><span class="named-paragraph-number">6.1</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">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">examples_mode</span><span class="plain-syntax"> == </span><span class="constant-syntax">EXMODE_open_internal</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="4-cr.html#SP6_2" class="named-paragraph-link"><span class="named-paragraph">Add directions to this section's examples to the roadsign</span><span class="named-paragraph-number">6.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP11" class="function-link"><span class="function-syntax">Roadsign::roadsign_end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-haj.html#SP11" class="function-link"><span class="function-syntax">HTMLUtilities::ruled_line</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP14" class="function-link"><span class="function-syntax">HTML::end_div</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP6_1" class="paragraph-anchor"></a><b>&#167;6.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Add home, back and forward directions to the roadsign</span><span class="named-paragraph-number">6.1</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">txt</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">txt</span><span class="plain-syntax">, </span><span class="string-syntax">"Start of %S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_full_title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-up.png"</span><span class="plain-syntax">, </span><span class="identifier-syntax">txt</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_URL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">txt</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">S</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">previous_section</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">chapter</span><span class="plain-syntax"> *</span><span class="identifier-syntax">to_chap</span><span class="plain-syntax"> = </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">previous_section</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">in_which_chapter</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">link</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">link</span><span class="plain-syntax">, </span><span class="string-syntax">"Back to "</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">to_chap</span><span class="plain-syntax"> != </span><span class="identifier-syntax">C</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">link</span><span class="plain-syntax">, </span><span class="string-syntax">"Chapter %d: %S: "</span><span class="plain-syntax">, </span><span class="identifier-syntax">to_chap</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_number</span><span class="plain-syntax">, </span><span class="identifier-syntax">to_chap</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">link</span><span class="plain-syntax">, </span><span class="string-syntax">"%c%S"</span><span class="plain-syntax">, </span><span class="constant-syntax">SECTION_SYMBOL</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">previous_section</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-left.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">link</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">previous_section</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">section_URL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">link</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">S</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">next_section</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">chapter</span><span class="plain-syntax"> *</span><span class="identifier-syntax">to_chap</span><span class="plain-syntax"> = </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_section</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">in_which_chapter</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">link</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">link</span><span class="plain-syntax">, </span><span class="string-syntax">"Onward to "</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">to_chap</span><span class="plain-syntax"> != </span><span class="identifier-syntax">C</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">link</span><span class="plain-syntax">, </span><span class="string-syntax">"Chapter %d: %S: "</span><span class="plain-syntax">, </span><span class="identifier-syntax">to_chap</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_number</span><span class="plain-syntax">, </span><span class="identifier-syntax">to_chap</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">link</span><span class="plain-syntax">, </span><span class="string-syntax">"%c%S"</span><span class="plain-syntax">, </span><span class="constant-syntax">SECTION_SYMBOL</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_section</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-right.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">link</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_section</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">section_URL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">link</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-cr.html#SP6">&#167;6</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP6_2" class="paragraph-anchor"></a><b>&#167;6.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Add directions to this section's examples to the roadsign</span><span class="named-paragraph-number">6.2</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">example</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E</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">E</span><span class="plain-syntax">, </span><span class="reserved-syntax">example</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">E</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">example_belongs_to_section</span><span class="plain-syntax">[</span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">allocation_id</span><span class="plain-syntax">] == </span><span class="identifier-syntax">S</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">stars</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">starcc</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">starcc</span><span class="plain-syntax"> &lt; </span><span class="identifier-syntax">E</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ex_star_count</span><span class="plain-syntax">; </span><span class="identifier-syntax">starcc</span><span class="plain-syntax">++)</span>
<span class="plain-syntax"> </span><a href="2-haj.html#SP12" class="function-link"><span class="function-syntax">HTMLUtilities::asterisk_image</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">stars</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"asterisk.png"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">pn</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/4-sm.html#SP17" class="function-link"><span class="function-syntax">Str::copy</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pn</span><span class="plain-syntax">, </span><span class="identifier-syntax">E</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ex_public_name</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-rr.html#SP5" class="function-link"><span class="function-syntax">Rawtext::escape_HTML_characters_in</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pn</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">text</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">text</span><span class="plain-syntax">, </span><span class="string-syntax">"Example %d: %S &lt;b&gt;%S&lt;/b&gt;&amp;#160;&amp;#160;&amp;#160; %S"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">E</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">example_position</span><span class="plain-syntax">[0], </span><span class="identifier-syntax">stars</span><span class="plain-syntax">, </span><span class="identifier-syntax">pn</span><span class="plain-syntax">, </span><span class="identifier-syntax">E</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ex_outline</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">url</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="2-exm.html#SP10" class="function-link"><span class="function-syntax">Examples::goto_example_url</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">url</span><span class="plain-syntax">, </span><span class="identifier-syntax">E</span><span class="plain-syntax">, </span><span class="identifier-syntax">V</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-down.png"</span><span class="plain-syntax">, </span><span class="identifier-syntax">text</span><span class="plain-syntax">, </span><span class="identifier-syntax">url</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">text</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">stars</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">url</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="4-cr.html#SP6">&#167;6</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>&#167;7. Example top. </b>This is reached before the first example is rendered, provided at least
one example will be:
</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">Roadsign::roadsign_navigation_example_top</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">Roadsign::roadsign_navigation_example_top</span></span>:<br/><a href="4-cr.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">navigation_design</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="reserved-syntax">volume</span><span class="plain-syntax"> *</span><span class="identifier-syntax">V</span><span class="plain-syntax">, </span><span class="reserved-syntax">section</span><span class="plain-syntax"> *</span><span class="identifier-syntax">S</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">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">examples_granularity</span><span class="plain-syntax"> == </span><span class="constant-syntax">CHAPTER_GRANULARITY</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP8" class="function-link"><span class="function-syntax">Roadsign::roadsign_chapter_jumps</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">V</span><span class="plain-syntax">, </span><span class="identifier-syntax">S</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">in_which_chapter</span><span class="plain-syntax">, </span><span class="constant-syntax">TRUE</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. Utility routines. </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">Roadsign::roadsign_chapter_jumps</span><button class="popup" onclick="togglePopup('usagePopup8')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup8">Usage of <span class="code-font"><span class="function-syntax">Roadsign::roadsign_chapter_jumps</span></span>:<br/><a href="4-cr.html#SP3">&#167;3</a>, <a href="4-cr.html#SP7">&#167;7</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">volume</span><span class="plain-syntax"> *</span><span class="identifier-syntax">V</span><span class="plain-syntax">, </span><span class="reserved-syntax">chapter</span><span class="plain-syntax"> *</span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">bottom</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP9" class="function-link"><span class="function-syntax">Roadsign::roadsign_begin</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">chc</span><span class="plain-syntax"> = </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">vol_chapter_count</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">chc</span><span class="plain-syntax"> &gt; </span><span class="constant-syntax">1</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">bottom</span><span class="plain-syntax"> == </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">text</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">text</span><span class="plain-syntax">, </span><span class="string-syntax">"Contents of &lt;i&gt;%S&lt;/i&gt;"</span><span class="plain-syntax">, </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">vol_title</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-up-left.png"</span><span class="plain-syntax">, </span><span class="identifier-syntax">text</span><span class="plain-syntax">, </span><span class="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">vol_URL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">text</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">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">previous_chapter</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-left.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">previous_chapter</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_full_title</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">previous_chapter</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_URL</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">bottom</span><span class="plain-syntax"> == </span><span class="constant-syntax">1</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-up.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"Start of this chapter"</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_URL</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">C</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">next_chapter</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-right.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_chapter</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_full_title</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">next_chapter</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_URL</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">no_examples</span><span class="plain-syntax"> &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP10" class="function-link"><span class="function-syntax">Roadsign::roadsign_add_direction</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"arrow-down-right.png"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"Indexes of the examples"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">indoc_settings</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">examples_alphabetical_leafname</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="4-cr.html#SP11" class="function-link"><span class="function-syntax">Roadsign::roadsign_end</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="constant-syntax">1</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP9" class="paragraph-anchor"></a><b>&#167;9. </b>And at a lower level: here's how a roadsign is made, as a table of links.
</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">Roadsign::roadsign_begin</span><button class="popup" onclick="togglePopup('usagePopup9')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup9">Usage of <span class="code-font"><span class="function-syntax">Roadsign::roadsign_begin</span></span>:<br/><a href="4-cr.html#SP2_3">&#167;2.3</a>, <a href="4-cr.html#SP5">&#167;5</a>, <a href="4-cr.html#SP6">&#167;6</a>, <a href="4-cr.html#SP8">&#167;8</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">centred</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">centred</span><span class="plain-syntax">) </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"table"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"centredtable\""</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">HTML_OPEN</span><span class="plain-syntax">(</span><span class="string-syntax">"table"</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP10" class="paragraph-anchor"></a><b>&#167;10. </b>This is a 2-column table: the link image in column 1, the text in column 2.
</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">Roadsign::roadsign_add_direction</span><button class="popup" onclick="togglePopup('usagePopup10')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup10">Usage of <span class="code-font"><span class="function-syntax">Roadsign::roadsign_add_direction</span></span>:<br/><a href="4-cr.html#SP2_3">&#167;2.3</a>, <a href="4-cr.html#SP5">&#167;5</a>, <a href="4-cr.html#SP6_1">&#167;6.1</a>, <a href="4-cr.html#SP6_2">&#167;6.2</a>, <a href="4-cr.html#SP8">&#167;8</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">icon</span><span class="plain-syntax">, </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">text</span><span class="plain-syntax">, </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">url</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN</span><span class="plain-syntax">(</span><span class="string-syntax">"tr"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"td"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"roadsigndirection\""</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP17" class="function-link"><span class="function-syntax">HTML::begin_link_with_class</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"standardlink"</span><span class="plain-syntax">, </span><span class="identifier-syntax">url</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-haj.html#SP12" class="function-link"><span class="function-syntax">HTMLUtilities::image_element</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">icon</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP17" class="function-link"><span class="function-syntax">HTML::end_link</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"td"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN</span><span class="plain-syntax">(</span><span class="string-syntax">"td"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP17" class="function-link"><span class="function-syntax">HTML::begin_link_with_class</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"standardlink"</span><span class="plain-syntax">, </span><span class="identifier-syntax">url</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">text</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/docs/foundation-module/5-htm.html#SP17" class="function-link"><span class="function-syntax">HTML::end_link</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"td"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"tr"</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></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">Roadsign::roadsign_end</span><button class="popup" onclick="togglePopup('usagePopup11')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup11">Usage of <span class="code-font"><span class="function-syntax">Roadsign::roadsign_end</span></span>:<br/><a href="4-cr.html#SP2_3">&#167;2.3</a>, <a href="4-cr.html#SP5">&#167;5</a>, <a href="4-cr.html#SP6">&#167;6</a>, <a href="4-cr.html#SP8">&#167;8</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">cent</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"table"</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP12" class="paragraph-anchor"></a><b>&#167;12. Ecce romani. </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">Roadsign::roman_numeral</span><button class="popup" onclick="togglePopup('usagePopup12')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup12">Usage of <span class="code-font"><span class="function-syntax">Roadsign::roman_numeral</span></span>:<br/><a href="4-cr.html#SP2_1">&#167;2.1</a>, <a href="4-cr.html#SP2_3">&#167;2.3</a>, <a href="4-cr.html#SP5">&#167;5</a><br/>Codename Unsigned - <a href="4-cu.html#SP2_1">&#167;2.1</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">v</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">v</span><span class="plain-syntax"> == </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"Part I. "</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">v</span><span class="plain-syntax"> == </span><span class="constant-syntax">1</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"Part II. "</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">v</span><span class="plain-syntax"> == </span><span class="constant-syntax">2</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"Part III. "</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">v</span><span class="plain-syntax"> == </span><span class="constant-syntax">3</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"Part IV. "</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">v</span><span class="plain-syntax"> == </span><span class="constant-syntax">4</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"Part V. "</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">v</span><span class="plain-syntax"> == </span><span class="constant-syntax">5</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"Part VI. "</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">v</span><span class="plain-syntax"> == </span><span class="constant-syntax">6</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"Part VII. "</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">v</span><span class="plain-syntax"> == </span><span class="constant-syntax">7</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"Part VIII. "</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">v</span><span class="plain-syntax"> == </span><span class="constant-syntax">8</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"Part IX. "</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">v</span><span class="plain-syntax"> == </span><span class="constant-syntax">9</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"Part X. "</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
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