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<html>
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<head>
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<title>Index Stage</title>
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<link href="../docs-assets/Breadcrumbs.css" rel="stylesheet" rev="stylesheet" type="text/css">
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<nav role="navigation">
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<h1><a href="../index.html">
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<img src="../docs-assets/Inform.png" height=72">
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</a></h1>
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<ul><li><a href="../index.html">home</a></li>
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</ul><h2>Compiler</h2><ul>
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<li><a href="../structure.html">structure</a></li>
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<li><a href="../inbuildn.html">inbuild</a></li>
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<li><a href="../inform7n.html">inform7</a></li>
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<li><a href="../intern.html">inter</a></li>
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<li><a href="../services.html">services</a></li>
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<li><a href="../secrets.html">secrets</a></li>
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</ul><h2>Other Tools</h2><ul>
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<li><a href="../inblorbn.html">inblorb</a></li>
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<li><a href="../indocn.html">indoc</a></li>
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<li><a href="../inform6.html">inform6</a></li>
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<li><a href="../inpolicyn.html">inpolicy</a></li>
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<li><a href="../inrtpsn.html">inrtps</a></li>
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</ul><h2>Resources</h2><ul>
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<li><a href="../extensions.html">extensions</a></li>
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<li><a href="../kits.html">kits</a></li>
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</ul><h2>Repository</h2><ul>
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<li><a href="https://github.com/ganelson/inform"><img src="../docs-assets/github.png" height=18> github</a></li>
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</ul><h2>Related Projects</h2><ul>
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<li><a href="../../../inweb/index.html">inweb</a></li>
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<li><a href="../../../intest/index.html">intest</a></li>
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</ul>
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</nav>
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<main role="main">
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<!--Weave of 'Index Stage' generated by Inweb-->
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<div class="breadcrumbs">
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../intern.html">Inter Modules</a></li><li><a href="index.html">index</a></li><li><a href="index.html#1">Chapter 1: Starting Up</a></li><li><b>Index Stage</b></li></ul></div>
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<p class="purpose">A pipeline stage for generating the index of an Inform project.</p>
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>This is not really a general-purpose pipeline stage: it makes sense only in
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the context of an Inform compilation run, and will (silently) do nothing if
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run in any other pipeline.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">IndexStage::create_pipeline_stage</span><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ParsingPipelines::new_stage</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"index"</span><span class="plain-syntax">, </span><a href="1-is.html#SP2" class="function-link"><span class="function-syntax">IndexStage::run</span></a><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">NO_STAGE_ARG</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>
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</pre>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>The implementation here needs an <span class="extract"><span class="extract-syntax">inform_project</span></span> structure to work from,
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and that exists only in the <a href="../supervisor-module/index.html" class="internal">supervisor</a> module — which is not a part of
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the Inter stand-alone tool. So running <span class="extract"><span class="extract-syntax">inter</span></span> at the command line does not
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allow the indexer to do anything.
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</p>
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<p class="commentary">Moreover, and in a sneaky fashion, updating the extensions documentation and
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generating an EPS map are also sometimes part of the indexing process, depending
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on the command-line settings used when invoking <span class="extract"><span class="extract-syntax">inform7</span></span>.
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">INDEX_REQUIRED_BIT</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">CENSUS_UPDATE_REQUIRED_BIT</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">EPS_MAP_REQUIRED_BIT</span><span class="plain-syntax"> </span><span class="constant-syntax">4</span>
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</pre>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">IndexStage::run</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">IndexStage::run</span></span>:<br/><a href="1-is.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">pipeline_step</span><span class="plain-syntax"> *</span><span class="identifier-syntax">step</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> #</span><span class="identifier-syntax">ifdef</span><span class="plain-syntax"> </span><span class="identifier-syntax">SUPERVISOR_MODULE</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax"> = </span><span class="identifier-syntax">step</span><span class="plain-syntax">-></span><span class="identifier-syntax">ephemera</span><span class="plain-syntax">.</span><span class="element-syntax">tree</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">req</span><span class="plain-syntax"> = </span><span class="constant-syntax">INDEX_REQUIRED_BIT</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> #</span><span class="identifier-syntax">ifdef</span><span class="plain-syntax"> </span><span class="identifier-syntax">CORE_MODULE</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">req</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Task::get_index_requirements</span><span class="plain-syntax">();</span>
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<span class="plain-syntax"> #</span><span class="identifier-syntax">endif</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inform_project</span><span class="plain-syntax"> *</span><span class="identifier-syntax">project</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="identifier-syntax">ifdef</span><span class="plain-syntax"> </span><span class="identifier-syntax">SUPERVISOR_MODULE</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">project</span><span class="plain-syntax"> = </span><span class="identifier-syntax">InterSkill::get_associated_project</span><span class="plain-syntax">();</span>
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<span class="plain-syntax"> #</span><span class="identifier-syntax">endif</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">project</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">req</span><span class="plain-syntax"> & </span><span class="constant-syntax">INDEX_REQUIRED_BIT</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">req</span><span class="plain-syntax"> & </span><span class="constant-syntax">EPS_MAP_REQUIRED_BIT</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">index_session</span><span class="plain-syntax"> *</span><span class="identifier-syntax">session</span><span class="plain-syntax"> = </span><a href="1-is.html#SP3" class="function-link"><span class="function-syntax">IndexStage::index_session_for</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">project</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">req</span><span class="plain-syntax"> & </span><span class="constant-syntax">INDEX_REQUIRED_BIT</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><a href="1-ia.html#SP3_1" class="function-link"><span class="function-syntax">Indexing::generate_index_website</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">session</span><span class="plain-syntax">, </span><span class="identifier-syntax">Projects::index_structure</span><span class="plain-syntax">(</span><span class="identifier-syntax">project</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">req</span><span class="plain-syntax"> & </span><span class="constant-syntax">CENSUS_UPDATE_REQUIRED_BIT</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ExtensionWebsite::index_after_compilation</span><span class="plain-syntax">(</span><span class="identifier-syntax">project</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> #</span><span class="identifier-syntax">ifdef</span><span class="plain-syntax"> </span><span class="identifier-syntax">CORE_MODULE</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">req</span><span class="plain-syntax"> & </span><span class="constant-syntax">EPS_MAP_REQUIRED_BIT</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> </span><a href="1-ia.html#SP3_3" class="function-link"><span class="function-syntax">Indexing::generate_EPS_map</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">session</span><span class="plain-syntax">, </span><span class="identifier-syntax">Task::epsmap_file</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="identifier-syntax">endif</span>
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<span class="plain-syntax"> </span><a href="1-ia.html#SP3_4" class="function-link"><span class="function-syntax">Indexing::close_session</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">session</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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<span class="plain-syntax"> #</span><span class="identifier-syntax">endif</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">TRUE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b>The actual indexing work is all done using the <a href="1-ia.html" class="internal">Indexing API</a>.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="plain-syntax">#</span><span class="identifier-syntax">ifdef</span><span class="plain-syntax"> </span><span class="identifier-syntax">SUPERVISOR_MODULE</span>
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<span class="reserved-syntax">index_session</span><span class="plain-syntax"> *</span><span class="function-syntax">IndexStage::index_session_for</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">IndexStage::index_session_for</span></span>:<br/><a href="1-is.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">inform_project</span><span class="plain-syntax"> *</span><span class="identifier-syntax">project</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">index_session</span><span class="plain-syntax"> *</span><span class="identifier-syntax">session</span><span class="plain-syntax"> = </span><a href="1-ia.html#SP2" class="function-link"><span class="function-syntax">Indexing::open_session</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inform_language</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Languages::find_for</span><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"English"</span><span class="plain-syntax">, </span><span class="identifier-syntax">Projects::nest_list</span><span class="plain-syntax">(</span><span class="identifier-syntax">project</span><span class="plain-syntax">));</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">inform_language</span><span class="plain-syntax"> *</span><span class="identifier-syntax">L</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Projects::get_language_of_index</span><span class="plain-syntax">(</span><span class="identifier-syntax">project</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">E</span><span class="plain-syntax"> != </span><span class="identifier-syntax">L</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> </span><a href="1-ia.html#SP3" class="function-link"><span class="function-syntax">Indexing::localise</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">session</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">Filenames::in</span><span class="plain-syntax">(</span><span class="identifier-syntax">Languages::path_to_bundle</span><span class="plain-syntax">(</span><span class="identifier-syntax">E</span><span class="plain-syntax">), </span><span class="identifier-syntax">I</span><span class="string-syntax">"Index.txt"</span><span class="plain-syntax">));</span>
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<span class="plain-syntax"> </span><a href="1-ia.html#SP3" class="function-link"><span class="function-syntax">Indexing::localise</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">session</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">Filenames::in</span><span class="plain-syntax">(</span><span class="identifier-syntax">Languages::path_to_bundle</span><span class="plain-syntax">(</span><span class="identifier-syntax">L</span><span class="plain-syntax">), </span><span class="identifier-syntax">I</span><span class="string-syntax">"Index.txt"</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">session</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="plain-syntax">#</span><span class="identifier-syntax">endif</span>
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</pre>
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