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Next: <a href="Inserting-Space.html#Inserting-Space" accesskey="n" rel="next">Inserting Space</a>, Previous: <a href="Special-Characters.html#Special-Characters" accesskey="p" rel="previous">Special Characters</a>, Up: <a href="Insertions.html#Insertions" accesskey="u" rel="up">Insertions</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>
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<a name="Inserting-Quote-Characters-1"></a>
<h3 class="section">14.2 Inserting Quote Characters</h3>

<a name="index-Inserting-quote-characters"></a>
<a name="index-Quote-characters_002c-inserting"></a>

<p>As explained in the early section on general Texinfo input conventions
(see <a href="Conventions.html#Conventions">Conventions</a>), Texinfo source files use the ASCII character
<code>`</code> (96 decimal) to produce a left quote (&lsquo;), and ASCII <code>'</code>
(39 decimal) to produce a right quote (&rsquo;).  Doubling these input
characters (<code>``</code> and <code>''</code>) produces double quotes (&ldquo; and
&rdquo;).  These are the conventions used by TeX.
</p>
<p>This works all right for text.  However, in examples of computer code,
readers are especially likely to cut and paste the text
verbatim&mdash;and, unfortunately, some document viewers will mangle these
characters.  (The free PDF reader <code>xpdf</code> works fine, but other
PDF readers, both free and nonfree, have problems.)
</p>
<p>If this is a concern for you, Texinfo provides these two commands:
</p>
<dl compact="compact">
<dt><code>@codequoteundirected <var>on-off</var></code>
<a name="index-_0040codequoteundirected-on_002doff"></a>
</dt>
<dd><a name="index-undirected-single-quote"></a>
<p>causes the output for the <code>'</code> character in code environments to
be the undirected single quote, like this:
<code>'</code>.
</p>
</dd>
<dt><code>@codequotebacktick <var>on-off</var></code>
<a name="index-_0040codequotebacktick-on_002doff"></a>
</dt>
<dd><a name="index-backtick"></a>
<a name="index-grave-accent_002c-standalone"></a>
<p>causes the output for the <code>`</code> character in code environments to
be the backtick character (standalone grave accent), like this:
<code>`</code>.
</p></dd>
</dl>

<p>If you want these settings for only part of the document,
<code>@codequote... off</code> will restore the normal behavior, as in
<code>@codequoteundirected off</code>.
</p>
<p>These settings affect <code>@code</code>, <code>@example</code>, <code>@kbd</code>,
<code>@samp</code>, <code>@verb</code>, and <code>@verbatim</code>.  See <a href="Useful-Highlighting.html#Useful-Highlighting">Useful Highlighting</a>.
</p>
<p>This feature used to be controlled by <code>@set</code> variable names;
they are still supported, but the command interface is preferred.
</p>




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