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<span id="Info-Format-Printindex"></span><div class="header">
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Next: <a href="Info-Format-Cross-Reference.html" accesskey="n" rel="next">Info Format Cross Reference</a>, Previous: <a href="Info-Format-Image.html" accesskey="p" rel="prev">Info Format Image</a>, Up: <a href="Info-Format-Text-Constructs.html" accesskey="u" rel="up">Info Format Text Constructs</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Command-and-Variable-Index.html" title="Index" rel="index">Index</a>]</p>
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<span id="Info-Format_003a-Printindex"></span><h4 class="subsection">G.2.3 Info Format: Printindex</h4>
<span id="index-Indices_002c-in-Info-format"></span>
<p>Indices in Info format are generally written as a menu
(see <a href="Indices.html">Indices</a>), but with an additional directive at the beginning
marking this as an index node:
</p>
<div class="example">
<pre class="example"> <printindex> =
^@^H[index^@^H]
* Menu:
<index entry>*
</pre></div>
<p>The <tt><index entry></tt> items are similar to normal menu entries, but
the free-format description is replaced by the line number of where
the entries occurs in the text:
</p>
<div class="example">
<pre class="example"> <index entry> =
* <entry text>: <entry node>. <lparen>line <lineno><rparen>
</pre></div>
<p>The <tt><entry text></tt> is the index term. The <tt><lineno></tt> is an
unsigned integer, given relative to the start of the <tt><entry node></tt>.
There may be arbitrary whitespace after the colon and period, as usual
in menus, and may be broken across lines. Here is an example:
</p>
<div class="example">
<pre class="example">^@^H[index^@^H]
* Menu:
* thunder: Weather Phenomena. (line 5)
</pre></div>
<p>This means that an index entry for ‘thunder’ appears at line 5 of the
node ‘Weather Phenomena’.
</p>
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