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<!--Weave of 'Activities' generated by Inweb-->
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inform7</a></li><li><a href="index.html">index</a></li><li><a href="index.html#2">Chapter 2: Indexing</a></li><li><b>Activities</b></li></ul></div>
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<p class="purpose">To index activities.</p>
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b></p>
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<pre class="displayed-code all-displayed-code code-font">
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<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">activity_indexing_data</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">activity_indexed</span><span class="plain-syntax">; </span><span class="comment-syntax"> has this been indexed yet?</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">av_documentation_symbol</span><span class="plain-syntax">; </span><span class="comment-syntax"> cross-reference to HTML documentation, if any</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">activity_crossref</span><span class="plain-syntax"> *</span><span class="identifier-syntax">cross_references</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">activity_indexing_data</span><span class="plain-syntax">;</span>
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<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">activity_crossref</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">id_body</span><span class="plain-syntax"> *</span><span class="identifier-syntax">rule_dependent</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">activity_crossref</span><span class="plain-syntax"> *</span><span class="identifier-syntax">next</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">activity_crossref</span><span class="plain-syntax">;</span>
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</pre>
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<ul class="endnotetexts"><li>The structure activity_indexing_data is private to this section.</li><li>The structure activity_crossref is accessed in 2/ins, 2/rls, 4/em and here.</li></ul>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b></p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">activity_indexing_data</span><span class="plain-syntax"> </span><span class="function-syntax">IXActivities::new_indexing_data</span><span class="plain-syntax">(</span><span class="identifier-syntax">activity</span><span class="plain-syntax"> *</span><span class="identifier-syntax">av</span><span class="plain-syntax">, </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">doc</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">activity_indexing_data</span><span class="plain-syntax"> </span><span class="identifier-syntax">aid</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">aid</span><span class="plain-syntax">.</span><span class="element-syntax">activity_indexed</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">aid</span><span class="plain-syntax">.</span><span class="element-syntax">av_documentation_symbol</span><span class="plain-syntax"> = </span><span class="identifier-syntax">doc</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">aid</span><span class="plain-syntax">.</span><span class="element-syntax">cross_references</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">aid</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">IXActivities::annotate_list_for_cross_references</span><span class="plain-syntax">(</span><span class="identifier-syntax">activity_list</span><span class="plain-syntax"> *</span><span class="identifier-syntax">avl</span><span class="plain-syntax">, </span><span class="identifier-syntax">id_body</span><span class="plain-syntax"> *</span><span class="identifier-syntax">idb</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (; </span><span class="identifier-syntax">avl</span><span class="plain-syntax">; </span><span class="identifier-syntax">avl</span><span class="plain-syntax"> = </span><span class="identifier-syntax">avl</span><span class="plain-syntax">-></span><span class="element-syntax">next</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">avl</span><span class="plain-syntax">-></span><span class="identifier-syntax">activity</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">activity</span><span class="plain-syntax"> *</span><span class="identifier-syntax">av</span><span class="plain-syntax"> = </span><span class="identifier-syntax">avl</span><span class="plain-syntax">-></span><span class="identifier-syntax">activity</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">activity_crossref</span><span class="plain-syntax"> *</span><span class="identifier-syntax">acr</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">activity_crossref</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">acr</span><span class="plain-syntax">-></span><span class="element-syntax">next</span><span class="plain-syntax"> = </span><span class="identifier-syntax">av</span><span class="plain-syntax">-></span><span class="identifier-syntax">indexing_data</span><span class="plain-syntax">.</span><span class="element-syntax">cross_references</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">av</span><span class="plain-syntax">-></span><span class="identifier-syntax">indexing_data</span><span class="plain-syntax">.</span><span class="element-syntax">cross_references</span><span class="plain-syntax"> = </span><span class="identifier-syntax">acr</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">acr</span><span class="plain-syntax">-></span><span class="element-syntax">rule_dependent</span><span class="plain-syntax"> = </span><span class="identifier-syntax">idb</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax">}</span>
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