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<h4 class="subsection">14.1.3 Inserting `,' with <code>@comma{}</code></h4>
<p><a name="index-Commas_002c-inserting-656"></a><a name="index-comma-657"></a>
Ordinarily, a comma `,' is a normal character that can be simply typed
in your input where you need it.
<p>However, Texinfo uses the comma as a special character in one uncommon
context: some commands, such as <code>@acronym</code> (see <a href="acronym.html#acronym">acronym</a>) and
<code>@xref</code> (see <a href="Cross-References.html#Cross-References">Cross References</a>), as well as user-defined
macros (see <a href="Defining-Macros.html#Defining-Macros">Defining Macros</a>), can take more than one argument. In
these cases, the comma character is used to separate arguments.
<p>Since a comma character would confuse Texinfo's parsing for these
commands, you must use the command ‘<samp><span class="samp">@comma{}</span></samp>’ instead if you want
to pass an actual comma. Here are some examples:
<pre class="example"> @acronym{ABC, A Bizarre @comma{}}
@xref{Comma,, The @comma{} symbol}
@mymac{One argument@comma{} containing a comma}
</pre>
<p>Although , can be used nearly anywhere, there is no need for it
anywhere except in this unusual case.
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