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<title>Bibliographic Data</title>
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<!--Weave of 'Bibliographic Data' 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#3">Chapter 3: Indexing for Plugins</a></li><li><b>Bibliographic Data</b></li></ul></div>
<p class="purpose">To write the Library Card in the index.</p>
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. </b>The Library Card is part of the Contents index, and is intended as a
natural way to present bibliographic data to the user. In effect, it's a
simplified form of the iFiction record, without the XML overhead.
</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">IXBibliographicData::Library_Card</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</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">Index::anchor</span><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">"LCARD"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML::begin_html_table</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="string-syntax">"*bg_images/indexcard.png"</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="constant-syntax">3</span><span class="plain-syntax">, </span><span class="constant-syntax">3</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-bd.html#SP2" class="function-link"><span class="function-syntax">IXBibliographicData::Library_Card_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="string-syntax">"Story title"</span><span class="plain-syntax">, </span><span class="identifier-syntax">story_title_VAR</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Untitled"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-bd.html#SP2" class="function-link"><span class="function-syntax">IXBibliographicData::Library_Card_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="string-syntax">"Story author"</span><span class="plain-syntax">, </span><span class="identifier-syntax">story_author_VAR</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Anonymous"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-bd.html#SP2" class="function-link"><span class="function-syntax">IXBibliographicData::Library_Card_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="string-syntax">"Story headline"</span><span class="plain-syntax">, </span><span class="identifier-syntax">story_headline_VAR</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"An Interactive Fiction"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-bd.html#SP2" class="function-link"><span class="function-syntax">IXBibliographicData::Library_Card_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="string-syntax">"Story genre"</span><span class="plain-syntax">, </span><span class="identifier-syntax">story_genre_VAR</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"Fiction"</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">episode_number</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">episode_text</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">episode_text</span><span class="plain-syntax">, </span><span class="string-syntax">"%d of %w"</span><span class="plain-syntax">, </span><span class="identifier-syntax">episode_number</span><span class="plain-syntax">, </span><span class="identifier-syntax">series_name</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-bd.html#SP2" class="function-link"><span class="function-syntax">IXBibliographicData::Library_Card_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="string-syntax">"Episode"</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">episode_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">episode_text</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><a href="3-bd.html#SP2" class="function-link"><span class="function-syntax">IXBibliographicData::Library_Card_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="string-syntax">"Release number"</span><span class="plain-syntax">, </span><span class="identifier-syntax">story_release_number_VAR</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"1"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-bd.html#SP2" class="function-link"><span class="function-syntax">IXBibliographicData::Library_Card_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="string-syntax">"Story creation year"</span><span class="plain-syntax">, </span><span class="identifier-syntax">story_creation_year_VAR</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"(This year)"</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">lang</span><span class="plain-syntax">)</span>
<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_play</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::project</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">L</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">lang</span><span class="plain-syntax">, </span><span class="string-syntax">"English"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">lang</span><span class="plain-syntax">, </span><span class="string-syntax">"%X"</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">as_copy</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">edition</span><span class="plain-syntax">-&gt;</span><span class="identifier-syntax">work</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-bd.html#SP2" class="function-link"><span class="function-syntax">IXBibliographicData::Library_Card_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="string-syntax">"Language of play"</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">lang</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">lang</span><span class="plain-syntax">)</span>
<span class="plain-syntax"> </span><a href="3-bd.html#SP2" class="function-link"><span class="function-syntax">IXBibliographicData::Library_Card_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="string-syntax">"IFID number"</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">BibliographicData::read_uuid</span><span class="plain-syntax">());</span>
<span class="plain-syntax"> </span><a href="3-bd.html#SP2" class="function-link"><span class="function-syntax">IXBibliographicData::Library_Card_entry</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="string-syntax">"Story description"</span><span class="plain-syntax">, </span><span class="identifier-syntax">story_description_VAR</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"None"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML::end_html_table</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"p"</span><span class="plain-syntax">);</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>&#167;2. </b>This uses:
</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">IXBibliographicData::Library_Card_entry</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">IXBibliographicData::Library_Card_entry</span></span>:<br/><a href="3-bd.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">char</span><span class="plain-syntax"> *</span><span class="identifier-syntax">field</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">nonlocal_variable</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nlv</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">t</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">col</span><span class="plain-syntax"> = </span><span class="identifier-syntax">I</span><span class="string-syntax">"303030"</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">nlv</span><span class="plain-syntax"> == </span><span class="identifier-syntax">story_title_VAR</span><span class="plain-syntax">) </span><span class="identifier-syntax">col</span><span class="plain-syntax"> = </span><span class="identifier-syntax">I</span><span class="string-syntax">"803030"</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML::first_html_column_nowrap</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML::begin_colour</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">col</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"span"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"typewritten\""</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"%s"</span><span class="plain-syntax">, </span><span class="identifier-syntax">field</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_CLOSE</span><span class="plain-syntax">(</span><span class="string-syntax">"span"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML::end_colour</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML::next_html_column</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML::begin_colour</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">col</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML_OPEN_WITH</span><span class="plain-syntax">(</span><span class="string-syntax">"span"</span><span class="plain-syntax">, </span><span class="string-syntax">"class=\"typewritten\""</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">"b"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-bd.html#SP4" class="function-link"><span class="function-syntax">IXBibliographicData::index_variable</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">nlv</span><span class="plain-syntax">, </span><span class="identifier-syntax">t</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">"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">"span"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML::end_colour</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">HTML::end_html_row</span><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="SP3" class="paragraph-anchor"></a><b>&#167;3. </b>The Index also likes to print the name and authorship at the top of the
Contents listing, so:
</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">IXBibliographicData::contents_heading</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">IXBibliographicData::contents_heading</span></span>:<br/>Index Headings - <a href="2-ih.html#SP3">&#167;3</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</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">story_title_VAR</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">story_author_VAR</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">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"Contents"</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><a href="3-bd.html#SP4" class="function-link"><span class="function-syntax">IXBibliographicData::index_variable</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">story_title_VAR</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"Untitled"</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">" by "</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><a href="3-bd.html#SP4" class="function-link"><span class="function-syntax">IXBibliographicData::index_variable</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">story_author_VAR</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"Anonymous"</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>&#167;4. </b>And both of those features use:
</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">IXBibliographicData::index_variable</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">IXBibliographicData::index_variable</span></span>:<br/><a href="3-bd.html#SP2">&#167;2</a>, <a href="3-bd.html#SP3">&#167;3</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">nonlocal_variable</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nlv</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">t</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">nlv</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">VariableSubjects::has_initial_value_set</span><span class="plain-syntax">(</span><span class="identifier-syntax">nlv</span><span class="plain-syntax">))) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NonlocalVariables::initial_value_as_plain_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">nlv</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">BibliographicData::compile_bibliographic_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">Lexer::word_text</span><span class="plain-syntax">(</span><span class="identifier-syntax">Wordings::first_wn</span><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">)), </span><span class="identifier-syntax">XML_BIBTEXT_MODE</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="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"%S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">t</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax">}</span>
</pre>
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