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<!--Weave of 'Examples Index' generated by Inweb-->
<div class="breadcrumbs">
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="index.html">indoc</a></li><li><a href="index.html#3">Chapter 3: Indexing</a></li><li><b>Examples Index</b></li></ul></div>
<p class="purpose">To produces the contents and indexing pages, for HTML output and multiple-files mode only.</p>
<ul class="toc"><li><a href="3-ei.html#SP2">&#167;2. Alphabetising the examples</a></li><li><a href="3-ei.html#SP3">&#167;3. Alphabetic index of examples</a></li><li><a href="3-ei.html#SP5">&#167;5. Thematic index of examples</a></li><li><a href="3-ei.html#SP6">&#167;6. Numerical index of examples</a></li></ul><hr class="tocbar">
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. </b>These structures are used to hold details needed for one or both of the
alphabetic and thematic example indexes.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">example_index_data</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">alpha_index_embolden</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">alpha_index_rubric</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">alpha_index_subtitle</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">section</span><span class="plain-syntax"> *</span><span class="identifier-syntax">alpha_index_to_S</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">example</span><span class="plain-syntax"> *</span><span class="identifier-syntax">alpha_index_to_E</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sort_key</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="constant-syntax">CLASS_DEFINITION</span>
<span class="plain-syntax">} </span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax">;</span>
<span class="reserved-syntax">dictionary</span><span class="plain-syntax"> *</span><span class="identifier-syntax">example_index_data_by_rubric</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
</pre>
<ul class="endnotetexts"><li>The structure example_index_data is private to this section.</li></ul>
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>&#167;2. Alphabetising the examples. </b>This is not quite an A-Z list of example names, because some examples are
allowed to be indexed twice, once under a literal name (say "Cloves")
and once under its point (say "Adverbs used in commands"). In addition to
that, some example snippets embedded in the body text of the manuals can
also appear here. So we actually maintain an alphabetical index able to
index examples under arbitrary, multiple descriptions.
</p>
<p class="commentary">If this is called with the <span class="extract"><span class="extract-syntax">RB_flag</span></span> set, then it adds the entry to the
thematic index instead, which shares code here because it also involves a
degree of alphabetisation.
</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">ExamplesIndex::add_to_alphabetic_examples_index</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">ExamplesIndex::add_to_alphabetic_examples_index</span></span>:<br/><a href="3-ei.html#SP3_1">&#167;3.1</a><br/>Renderer - <a href="2-rnd.html#SP10_2_2_2">&#167;10.2.2.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">given_rubric</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">section</span><span class="plain-syntax"> *</span><span class="identifier-syntax">index_to_S</span><span class="plain-syntax">, </span><span class="reserved-syntax">example</span><span class="plain-syntax"> *</span><span class="identifier-syntax">index_to_E</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">bold_flag</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">RB_flag</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">rubric</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="../../../inweb/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">rubric</span><span class="plain-syntax">, </span><span class="identifier-syntax">given_rubric</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">match_results</span><span class="plain-syntax"> </span><span class="identifier-syntax">mr</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-pm.html#SP9" class="function-link"><span class="function-syntax">Regexp::create_mr</span></a><span class="plain-syntax">();</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/foundation-module/4-pm.html#SP10" class="function-link"><span class="function-syntax">Regexp::match</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">mr</span><span class="plain-syntax">, </span><span class="identifier-syntax">rubric</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"(%c*); *(%c*?)"</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><a href="3-ei.html#SP2" class="function-link"><span class="function-syntax">ExamplesIndex::add_to_alphabetic_examples_index</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">mr</span><span class="plain-syntax">.</span><span class="element-syntax">exp</span><span class="plain-syntax">[0], </span><span class="identifier-syntax">index_to_S</span><span class="plain-syntax">, </span><span class="identifier-syntax">index_to_E</span><span class="plain-syntax">, </span><span class="identifier-syntax">bold_flag</span><span class="plain-syntax">, </span><span class="identifier-syntax">RB_flag</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-ei.html#SP2" class="function-link"><span class="function-syntax">ExamplesIndex::add_to_alphabetic_examples_index</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">mr</span><span class="plain-syntax">.</span><span class="element-syntax">exp</span><span class="plain-syntax">[1], </span><span class="identifier-syntax">index_to_S</span><span class="plain-syntax">, </span><span class="identifier-syntax">index_to_E</span><span class="plain-syntax">, </span><span class="constant-syntax">TRUE</span><span class="plain-syntax">, </span><span class="identifier-syntax">RB_flag</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</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">RB_flag</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="3-ei.html#SP2_1" class="named-paragraph-link"><span class="named-paragraph">Translate the rubric according to the Recipe Book catalogue</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="3-ei.html#SP2_2" class="named-paragraph-link"><span class="named-paragraph">Add a single new term to the examples index</span><span class="named-paragraph-number">2.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/4-pm.html#SP9" class="function-link"><span class="function-syntax">Regexp::dispose_of</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">mr</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">rubric</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">Translate the rubric according to the Recipe Book catalogue</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="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">trans</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/2-dct.html#SP10" class="function-link"><span class="function-syntax">Dictionaries::get_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">recipe_translates_as</span><span class="plain-syntax">, </span><span class="identifier-syntax">rubric</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/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">trans</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/foundation-module/4-sm.html#SP19" class="function-link"><span class="function-syntax">Str::eq</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">trans</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"OMIT"</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><a href="../../../inweb/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">rubric</span><span class="plain-syntax">, </span><span class="identifier-syntax">trans</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="3-ei.html#SP2">&#167;2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP2_2" class="paragraph-anchor"></a><b>&#167;2.2. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Add a single new term to the examples index</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">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">sort_key</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">subtitle</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="../../../inweb/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">sort_key</span><span class="plain-syntax">, </span><span class="identifier-syntax">rubric</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/foundation-module/4-pm.html#SP10" class="function-link"><span class="function-syntax">Regexp::match</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">mr</span><span class="plain-syntax">, </span><span class="identifier-syntax">rubric</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"(%c*?) *-- *(%c*)"</span><span class="plain-syntax">)) </span><a href="../../../inweb/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">rubric</span><span class="plain-syntax">, </span><span class="identifier-syntax">mr</span><span class="plain-syntax">.</span><span class="element-syntax">exp</span><span class="plain-syntax">[0]);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="../../../inweb/foundation-module/4-pm.html#SP10" class="function-link"><span class="function-syntax">Regexp::match</span></a><span class="plain-syntax">(&amp;</span><span class="identifier-syntax">mr</span><span class="plain-syntax">, </span><span class="identifier-syntax">rubric</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"(%c*?): *(%c*?)"</span><span class="plain-syntax">)) {</span>
<span class="plain-syntax"> </span><a href="../../../inweb/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">rubric</span><span class="plain-syntax">, </span><span class="identifier-syntax">mr</span><span class="plain-syntax">.</span><span class="element-syntax">exp</span><span class="plain-syntax">[1]);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/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">subtitle</span><span class="plain-syntax">, </span><span class="identifier-syntax">mr</span><span class="plain-syntax">.</span><span class="element-syntax">exp</span><span class="plain-syntax">[0]);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><a href="3-iu.html#SP3" class="function-link"><span class="function-syntax">IndexUtilities::improve_alphabetisation</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sort_key</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">RB_flag</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pre</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/2-dct.html#SP10" class="function-link"><span class="function-syntax">Dictionaries::get_text</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">recipe_sort_prefix</span><span class="plain-syntax">, </span><span class="identifier-syntax">rubric</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/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">pre</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="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">, </span><span class="string-syntax">"%S&gt;%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">pre</span><span class="plain-syntax">, </span><span class="identifier-syntax">sort_key</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/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">sort_key</span><span class="plain-syntax">, </span><span class="identifier-syntax">p</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">p</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">eid</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_embolden</span><span class="plain-syntax"> = </span><span class="identifier-syntax">bold_flag</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_rubric</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-sm.html#SP3" class="function-link"><span class="function-syntax">Str::duplicate</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">rubric</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_subtitle</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-sm.html#SP3" class="function-link"><span class="function-syntax">Str::duplicate</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">subtitle</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_to_S</span><span class="plain-syntax"> = </span><span class="identifier-syntax">index_to_S</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_to_E</span><span class="plain-syntax"> = </span><span class="identifier-syntax">index_to_E</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">sort_key</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-sm.html#SP3" class="function-link"><span class="function-syntax">Str::duplicate</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sort_key</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">example_index_data_by_rubric</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">example_index_data_by_rubric</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/2-dct.html#SP2" class="function-link"><span class="function-syntax">Dictionaries::new</span></a><span class="plain-syntax">(100, </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/2-dct.html#SP5" class="function-link"><span class="function-syntax">Dictionaries::create</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">example_index_data_by_rubric</span><span class="plain-syntax">, </span><span class="identifier-syntax">sort_key</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/2-dct.html#SP8" class="function-link"><span class="function-syntax">Dictionaries::write_value</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">example_index_data_by_rubric</span><span class="plain-syntax">, </span><span class="identifier-syntax">sort_key</span><span class="plain-syntax">, (</span><span class="reserved-syntax">void</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">eid</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="3-ei.html#SP2">&#167;2</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>&#167;3. Alphabetic index of examples. </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">ExamplesIndex::write_alphabetical_examples_index</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">ExamplesIndex::write_alphabetical_examples_index</span></span>:<br/>Main - <a href="1-mn.html#SP1_5">&#167;1.5</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="named-paragraph-container code-font"><a href="3-ei.html#SP3_1" class="named-paragraph-link"><span class="named-paragraph">Stock the alphabetical index</span><span class="named-paragraph-number">3.1</span></a></span><span class="plain-syntax">;</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><a href="3-iu.html#SP1" class="function-link"><span class="function-syntax">IndexUtilities::open_page</span></a><span class="plain-syntax">(</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"Alphabetical Index of 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><a href="3-iu.html#SP4" class="function-link"><span class="function-syntax">IndexUtilities::alphabet_row</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">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=\"indextable\""</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax"> **</span><span class="identifier-syntax">eid_list</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/2-mmr.html#SP24" class="function-link"><span class="function-syntax">Memory::calloc</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">NUMBER_CREATED</span><span class="plain-syntax">(</span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax">), </span><span class="reserved-syntax">sizeof</span><span class="plain-syntax">(</span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax"> *), </span><span class="constant-syntax">ARRAY_SORTING_MREASON</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">eid</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">eid</span><span class="plain-syntax">, </span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax">) </span><span class="identifier-syntax">eid_list</span><span class="plain-syntax">[</span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">allocation_id</span><span class="plain-syntax">] = </span><span class="identifier-syntax">eid</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">qsort</span><span class="plain-syntax">(</span><span class="identifier-syntax">eid_list</span><span class="plain-syntax">, (</span><span class="identifier-syntax">size_t</span><span class="plain-syntax">) </span><span class="identifier-syntax">NUMBER_CREATED</span><span class="plain-syntax">(</span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax">), </span><span class="reserved-syntax">sizeof</span><span class="plain-syntax">(</span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax"> *),</span>
<span class="plain-syntax"> </span><a href="3-ei.html#SP4" class="function-link"><span class="function-syntax">ExamplesIndex::sort_comparison</span></a><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">current_subtitle</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">wchar_t</span><span class="plain-syntax"> </span><span class="identifier-syntax">current_letter</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">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">first_letter_block</span><span class="plain-syntax"> = </span><span class="constant-syntax">TRUE</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">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="plain-syntax">&lt;</span><span class="identifier-syntax">NUMBER_CREATED</span><span class="plain-syntax">(</span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax">); </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">eid</span><span class="plain-syntax"> = </span><span class="identifier-syntax">eid_list</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">];</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">wchar_t</span><span class="plain-syntax"> </span><span class="identifier-syntax">initial</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-sm.html#SP13" class="function-link"><span class="function-syntax">Str::get_first_char</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">sort_key</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/foundation-module/4-chr.html#SP1" class="function-link"><span class="function-syntax">Characters::isdigit</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">initial</span><span class="plain-syntax">)) </span><span class="identifier-syntax">initial</span><span class="plain-syntax"> = </span><span class="character-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">initial</span><span class="plain-syntax"> != </span><span class="identifier-syntax">current_letter</span><span class="plain-syntax">) </span><span class="named-paragraph-container code-font"><a href="3-ei.html#SP3_3" class="named-paragraph-link"><span class="named-paragraph">Start a new letter block</span><span class="named-paragraph-number">3.3</span></a></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><span class="named-paragraph-container code-font"><a href="3-ei.html#SP3_2" class="named-paragraph-link"><span class="named-paragraph">Work out the URL of this example</span><span class="named-paragraph-number">3.2</span></a></span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="3-ei.html#SP3_5" class="named-paragraph-link"><span class="named-paragraph">Write an alphabetical-index entry</span><span class="named-paragraph-number">3.5</span></a></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><span class="named-paragraph-container code-font"><a href="3-ei.html#SP3_4" class="named-paragraph-link"><span class="named-paragraph">End a letter block</span><span class="named-paragraph-number">3.4</span></a></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><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><a href="3-iu.html#SP4" class="function-link"><span class="function-syntax">IndexUtilities::alphabet_row</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="constant-syntax">2</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-iu.html#SP2" class="function-link"><span class="function-syntax">IndexUtilities::close_page</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/foundation-module/2-mmr.html#SP26" class="function-link"><span class="function-syntax">Memory::I7_free</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">eid_list</span><span class="plain-syntax">, </span><span class="constant-syntax">ARRAY_SORTING_MREASON</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">NUMBER_CREATED</span><span class="plain-syntax">(</span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax">)*((</span><span class="reserved-syntax">int</span><span class="plain-syntax">) </span><span class="reserved-syntax">sizeof</span><span class="plain-syntax">(</span><span class="reserved-syntax">example_index_data</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">Stock the alphabetical index</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="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><a href="3-ei.html#SP2" class="function-link"><span class="function-syntax">ExamplesIndex::add_to_alphabetic_examples_index</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">E</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">ex_rubric</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">E</span><span class="plain-syntax">, </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">, </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="3-ei.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">Work out the URL of this example</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="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_to_S</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">url</span><span class="plain-syntax">, </span><span class="string-syntax">"%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">alpha_index_to_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="reserved-syntax">else</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">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_to_E</span><span class="plain-syntax">, </span><span class="identifier-syntax">volumes</span><span class="plain-syntax">[0]);</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="3-ei.html#SP3">&#167;3</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP3_3" class="paragraph-anchor"></a><b>&#167;3.3. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Start a new letter block</span><span class="named-paragraph-number">3.3</span></span><span class="comment-syntax"> =</span>
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="plain-syntax"> </span><span class="identifier-syntax">current_letter</span><span class="plain-syntax"> = </span><span class="identifier-syntax">initial</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">first_letter_block</span><span class="plain-syntax"> == </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">) { </span><span class="identifier-syntax">HTML_TAG</span><span class="plain-syntax">(</span><span class="string-syntax">"br"</span><span class="plain-syntax">); </span><span class="named-paragraph-container code-font"><a href="3-ei.html#SP3_4" class="named-paragraph-link"><span class="named-paragraph">End a letter block</span><span class="named-paragraph-number">3.4</span></a></span><span class="plain-syntax">; }</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">wchar_t</span><span class="plain-syntax"> </span><span class="identifier-syntax">uc_current_letter</span><span class="plain-syntax"> = </span><a href="../../../inweb/foundation-module/4-chr.html#SP1" class="function-link"><span class="function-syntax">Characters::toupper</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">current_letter</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=\"letterblock\""</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">inc</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PUT_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">inc</span><span class="plain-syntax">, </span><span class="identifier-syntax">uc_current_letter</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/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">inc</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-iu.html#SP5" class="function-link"><span class="function-syntax">IndexUtilities::majuscule_heading</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">inc</span><span class="plain-syntax">, </span><span class="constant-syntax">TRUE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-iu.html#SP4" class="function-link"><span class="function-syntax">IndexUtilities::note_letter</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">uc_current_letter</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">inc</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><span class="identifier-syntax">first_letter_block</span><span class="plain-syntax"> = </span><span class="constant-syntax">FALSE</span><span class="plain-syntax">;</span>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="3-ei.html#SP3">&#167;3</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP3_4" class="paragraph-anchor"></a><b>&#167;3.4. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">End a letter block</span><span class="named-paragraph-number">3.4</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_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>
</pre>
<ul class="endnotetexts"><li>This code is used in <a href="3-ei.html#SP3">&#167;3</a>, <a href="3-ei.html#SP3_3">&#167;3.3</a>.</li></ul>
<p class="commentary firstcommentary"><a id="SP3_5" class="paragraph-anchor"></a><b>&#167;3.5. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Write an alphabetical-index entry</span><span class="named-paragraph-number">3.5</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=\"indexentry\""</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/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">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_subtitle</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/foundation-module/4-sm.html#SP19" class="function-link"><span class="function-syntax">Str::ne</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_subtitle</span><span class="plain-syntax">, </span><span class="identifier-syntax">current_subtitle</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">"&lt;b&gt;%S&lt;/b&gt;&lt;br /&gt;"</span><span class="plain-syntax">, </span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_subtitle</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="../../../inweb/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">current_subtitle</span><span class="plain-syntax">, </span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_subtitle</span><span class="plain-syntax">);</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;&amp;#160;"</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">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_embolden</span><span class="plain-syntax"> == </span><span class="constant-syntax">TRUE</span><span class="plain-syntax">) { </span><span class="identifier-syntax">HTML_OPEN</span><span class="plain-syntax">(</span><span class="string-syntax">"b"</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_text</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="../../../inweb/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">link_text</span><span class="plain-syntax">, </span><span class="identifier-syntax">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_rubric</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">link_text</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="2-haj.html#SP8" class="function-link"><span class="function-syntax">HTMLUtilities::general_link</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="identifier-syntax">link_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">link_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">eid</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">alpha_index_embolden</span><span class="plain-syntax"> == </span><span class="constant-syntax">TRUE</span><span class="plain-syntax">) { </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"b"</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="3-ei.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">int</span><span class="plain-syntax"> </span><span class="function-syntax">ExamplesIndex::sort_comparison</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">ExamplesIndex::sort_comparison</span></span>:<br/><a href="3-ei.html#SP3">&#167;3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">const</span><span class="plain-syntax"> </span><span class="reserved-syntax">void</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ent1</span><span class="plain-syntax">, </span><span class="reserved-syntax">const</span><span class="plain-syntax"> </span><span class="reserved-syntax">void</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ent2</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">const</span><span class="plain-syntax"> </span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">L1</span><span class="plain-syntax"> = *((</span><span class="reserved-syntax">const</span><span class="plain-syntax"> </span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax"> **) </span><span class="identifier-syntax">ent1</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">const</span><span class="plain-syntax"> </span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">L2</span><span class="plain-syntax"> = *((</span><span class="reserved-syntax">const</span><span class="plain-syntax"> </span><span class="reserved-syntax">example_index_data</span><span class="plain-syntax"> **) </span><span class="identifier-syntax">ent2</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="../../../inweb/foundation-module/4-sm.html#SP20" class="function-link"><span class="function-syntax">Str::cmp</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">L1</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">sort_key</span><span class="plain-syntax">, </span><span class="identifier-syntax">L2</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">sort_key</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. Thematic index of examples. </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">ExamplesIndex::write_thematic_examples_index</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">ExamplesIndex::write_thematic_examples_index</span></span>:<br/>Main - <a href="1-mn.html#SP1_5">&#167;1.5</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">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = </span><a href="3-iu.html#SP1" class="function-link"><span class="function-syntax">IndexUtilities::open_page</span></a><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><a href="3-ei.html#SP7" class="function-link"><span class="function-syntax">ExamplesIndex::write_index_for_volume</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">volumes</span><span class="plain-syntax">[1]);</span>
<span class="plain-syntax"> </span><a href="3-iu.html#SP2" class="function-link"><span class="function-syntax">IndexUtilities::close_page</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. Numerical index of examples. </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">ExamplesIndex::write_numerical_examples_index</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">ExamplesIndex::write_numerical_examples_index</span></span>:<br/>Main - <a href="1-mn.html#SP1_5">&#167;1.5</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">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax"> = </span><a href="3-iu.html#SP1" class="function-link"><span class="function-syntax">IndexUtilities::open_page</span></a><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><a href="3-ei.html#SP7" class="function-link"><span class="function-syntax">ExamplesIndex::write_index_for_volume</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">volumes</span><span class="plain-syntax">[0]);</span>
<span class="plain-syntax"> </span><a href="3-iu.html#SP2" class="function-link"><span class="function-syntax">IndexUtilities::close_page</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="SP7" class="paragraph-anchor"></a><b>&#167;7. </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">ExamplesIndex::write_index_for_volume</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">ExamplesIndex::write_index_for_volume</span></span>:<br/><a href="3-ei.html#SP5">&#167;5</a>, <a href="3-ei.html#SP6">&#167;6</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="plain-syntax"> </span><span class="reserved-syntax">chapter</span><span class="plain-syntax"> *</span><span class="identifier-syntax">owning_chapter</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">section</span><span class="plain-syntax"> *</span><span class="identifier-syntax">owning_section</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">n</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">; </span><span class="identifier-syntax">n</span><span class="plain-syntax"> &lt; </span><span class="identifier-syntax">no_examples</span><span class="plain-syntax">; </span><span class="identifier-syntax">n</span><span class="plain-syntax">++) {</span>
<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="identifier-syntax">V</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">examples_sequence</span><span class="plain-syntax">[</span><span class="identifier-syntax">n</span><span class="plain-syntax">];</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">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="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><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">owning_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">owning_chapter</span><span class="plain-syntax"> != </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">HTML_TAG</span><span class="plain-syntax">(</span><span class="string-syntax">"hr"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">owning_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="identifier-syntax">HTML_OPEN</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">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"&lt;b&gt;Chapter %d: %S&lt;/b&gt;"</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">chapter_number</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</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">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="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">owning_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">owning_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</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">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"&lt;i&gt;%c%S&lt;/i&gt;"</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>
<span class="plain-syntax"> </span><a href="2-exm.html#SP7" class="function-link"><span class="function-syntax">Examples::render_example_cue</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</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="constant-syntax">TRUE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
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