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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
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<head>
<title>Nodes (GNU Texinfo 6.5)</title>

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</head>

<body lang="en">
<a name="Nodes"></a>
<div class="header">
<p>
Next: <a href="Chapter-Structuring.html#Chapter-Structuring" accesskey="n" rel="next">Chapter Structuring</a>, Previous: <a href="Beginning-and-Ending-a-File.html#Beginning-and-Ending-a-File" accesskey="p" rel="prev">Beginning and Ending a File</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Command-and-Variable-Index.html#Command-and-Variable-Index" title="Index" rel="index">Index</a>]</p>
</div>
<hr>
<a name="Nodes-1"></a>
<h2 class="chapter">4 Nodes</h2>
<a name="node"></a><a name="g_t_0040node"></a>
<a name="index-Node_002c-defined"></a>
<p>A <em>node</em> is a region of text that begins at a <code>@node</code>
command, and continues until the next <code>@node</code> command.
To specify a node, write a <code>@node</code> command at the beginning of
a line, and follow it with the name of the node.
Each node contains the discussion of one topic.  Info readers
display one node at a time, and provide commands for the user to move
to related nodes.  The HTML output can be similarly navigated.
</p>
<p>Nodes are used as the targets of cross-references.  Cross-references,
such as the one at the end of this sentence, are made with <code>@xref</code>
and related commands; see <a href="Cross-References.html#Cross-References">Cross References</a>.  Cross-references can
be sprinkled throughout the text, and provide a way to represent links
that do not fit a hierarchical structure.
</p>
<p>Normally, you put a node command immediately before each chapter
structuring command&mdash;for example, an <code>@section</code> or
<code>@subsection</code> line.  (See <a href="Chapter-Structuring.html#Chapter-Structuring">Chapter Structuring</a>.).
You must do this even if you do not intend to format the file for Info.
This is because TeX uses both <code>@node</code> names and
chapter-structuring names in the output for cross-references.  The only
time you are likely to use the chapter structuring commands without also
using nodes is if you are writing a document that contains no cross
references and will only be printed, not transformed into Info, HTML, or
other formats.
</p>

<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="Texinfo-Document-Structure.html#Texinfo-Document-Structure" accesskey="1">Texinfo Document Structure</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Double structure of documents.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="Node-Names.html#Node-Names" accesskey="2">Node Names</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">How to choose node names.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="Writing-a-Node.html#Writing-a-Node" accesskey="3">Writing a Node</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">How to write an <code>@node</code> line.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="Node-Line-Requirements.html#Node-Line-Requirements" accesskey="4">Node Line Requirements</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Keep names unique.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="First-Node.html#First-Node" accesskey="5">First Node</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">How to write a &lsquo;Top&rsquo; node.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="_0040top-Command.html#g_t_0040top-Command" accesskey="6"><code>@top</code> Command</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">How to use the <code>@top</code> command.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="Node-Menu-Illustration.html#Node-Menu-Illustration" accesskey="7">Node Menu Illustration</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">A diagram, and sample nodes and menus.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="makeinfo-Pointer-Creation.html#makeinfo-Pointer-Creation" accesskey="8"><code>makeinfo</code> Pointer Creation</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Letting makeinfo determine node pointers.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="Menus.html#Menus" accesskey="9">Menus</a>:</td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Listing subordinate nodes.
</td></tr>
</table>


<hr>
<div class="header">
<p>
Next: <a href="Chapter-Structuring.html#Chapter-Structuring" accesskey="n" rel="next">Chapter Structuring</a>, Previous: <a href="Beginning-and-Ending-a-File.html#Beginning-and-Ending-a-File" accesskey="p" rel="prev">Beginning and Ending a File</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Command-and-Variable-Index.html#Command-and-Variable-Index" title="Index" rel="index">Index</a>]</p>
</div>



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