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<span id="g_t_0040print"></span><div class="header">
<p>
Next: <a href="_0040error.html" accesskey="n" rel="next"><code>@error</code></a>, Previous: <a href="_0040expansion.html" accesskey="p" rel="prev"><code>@expansion</code></a>, Up: <a href="Glyphs-for-Programming.html" accesskey="u" rel="up">Glyphs for Programming</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="g_t_0040print_007b_007d-_0028_22a3_0029_003a-Indicating-Generated-Output"></span><h4 class="subsection">12.9.4 <code>@print{}</code> (-|): Indicating Generated Output</h4>
<span id="Print-Glyph"></span><span id="index-print"></span>
<span id="index-Printed-output_002c-indicating"></span>
<p>Sometimes an expression will generate output during its execution.
You can indicate such displayed output with the <code>@print{}</code>
command.
</p>
<p>The <code>@print{}</code> command is displayed as ‘<samp>-|</samp>’, either
a horizontal dash butting against a vertical bar or (when that is not
available) the ASCII sequence ‘<samp>-|</samp>’.
</p>
<p>In the following example, the printed text is indicated with
‘<samp>-|</samp>’, and the value of the expression follows on the
last line.
</p>
<div class="lisp">
<pre class="lisp">(progn (print 'foo) (print 'bar))
-| foo
-| bar
⇒ bar
</pre></div>
<p>In a Texinfo source file, this example is written as follows:
</p>
<div class="lisp">
<pre class="lisp">@lisp
(progn (print 'foo) (print 'bar))
@print{} foo
@print{} bar
@result{} bar
@end lisp
</pre></div>
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