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<p>
Next: <a href="Emphasis.html" accesskey="n" rel="next">Emphasis</a>, Up: <a href="Marking-Text.html" accesskey="u" rel="up">Marking Text</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="Indicating-Definitions_002c-Commands_002c-etc_002e"></span><h3 class="section">7.1 Indicating Definitions, Commands, etc.</h3>
<span id="index-Highlighting-text"></span>
<span id="index-Indicating-commands_002c-definitions_002c-etc_002e"></span>
<p>Texinfo has commands for indicating just what kind of object a piece
of text refers to. For example, email addresses are marked by
<code>@email</code>; that way, the result can be a live link to send email
when the output format supports it. If the email address was simply
marked as “print in a typewriter font”, that would not be possible.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">• <a href="Useful-Highlighting.html" accesskey="1">Useful Highlighting</a></td><td> </td><td align="left" valign="top">Highlighting provides useful information.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040code.html" accesskey="2"><code>@code</code></a></td><td> </td><td align="left" valign="top">Indicating program code.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040kbd.html" accesskey="3"><code>@kbd</code></a></td><td> </td><td align="left" valign="top">Showing keyboard input.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040key.html" accesskey="4"><code>@key</code></a></td><td> </td><td align="left" valign="top">Specifying keys.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040samp.html" accesskey="5"><code>@samp</code></a></td><td> </td><td align="left" valign="top">Indicating a literal sequence of characters.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040verb.html" accesskey="6"><code>@verb</code></a></td><td> </td><td align="left" valign="top">Indicating a verbatim sequence of characters.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040var.html" accesskey="7"><code>@var</code></a></td><td> </td><td align="left" valign="top">Indicating metasyntactic variables.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040env.html" accesskey="8"><code>@env</code></a></td><td> </td><td align="left" valign="top">Indicating environment variables.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040file.html" accesskey="9"><code>@file</code></a></td><td> </td><td align="left" valign="top">Indicating file names.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040command.html"><code>@command</code></a></td><td> </td><td align="left" valign="top">Indicating command names.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040option.html"><code>@option</code></a></td><td> </td><td align="left" valign="top">Indicating option names.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040dfn.html"><code>@dfn</code></a></td><td> </td><td align="left" valign="top">Specifying definitions.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040abbr.html"><code>@abbr</code></a></td><td> </td><td align="left" valign="top">Indicating abbreviations.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040acronym.html"><code>@acronym</code></a></td><td> </td><td align="left" valign="top">Indicating acronyms.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040indicateurl.html"><code>@indicateurl</code></a></td><td> </td><td align="left" valign="top">Indicating an example url.
</td></tr>
<tr><td align="left" valign="top">• <a href="_0040email.html"><code>@email</code></a></td><td> </td><td align="left" valign="top">Indicating an electronic mail address.
</td></tr>
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