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<h2 class="chapter">19 Defining New Texinfo Commands</h2>
<p><a name="index-Macros-1058"></a><a name="index-Defining-new-Texinfo-commands-1059"></a><a name="index-New-Texinfo-commands_002c-defining-1060"></a><a name="index-Texinfo-commands_002c-defining-new-1061"></a><a name="index-User_002ddefined-Texinfo-commands-1062"></a>
Texinfo provides several ways to define new commands:
<ul>
<li>A Texinfo <dfn>macro</dfn> allows you to define a new Texinfo command as any
sequence of text and/or existing commands (including other macros). The
macro can have any number of <dfn>parameters</dfn>—text you supply each
time you use the macro.
<p>Incidentally, these macros have nothing to do with the <code>@defmac</code>
command, which is for documenting macros in the subject of the manual
(see <a href="Def-Cmd-Template.html#Def-Cmd-Template">Def Cmd Template</a>).
<li>‘<samp><span class="samp">@alias</span></samp>’ is a convenient way to define a new name for an existing
command.
<li>‘<samp><span class="samp">@definfoenclose</span></samp>’ allows you to define new commands with
customized output in the Info file.
</ul>
<ul class="menu">
<li><a accesskey="1" href="Defining-Macros.html#Defining-Macros">Defining Macros</a>: Defining and undefining new commands.
<li><a accesskey="2" href="Invoking-Macros.html#Invoking-Macros">Invoking Macros</a>: Using a macro, once you've defined it.
<li><a accesskey="3" href="Macro-Details.html#Macro-Details">Macro Details</a>: Limitations of Texinfo macros.
<li><a accesskey="4" href="alias.html#alias">alias</a>: Command aliases.
<li><a accesskey="5" href="definfoenclose.html#definfoenclose">definfoenclose</a>: Customized highlighting.
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