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-<head>
-<title>UK TeX FAQ -- question label compjobnam</title>
-</head><body>
-<h3>Comparing the &#8220;job name&#8221;</h3>
-<p/>The token <code>\</code><code>jobname</code> amusingly produces a sequence of characters
-whose category code is 12 (&#8216;other&#8217;), regardless of what the characters
-actually are. Since one inevitably has to compare a macro with the
-contents of another macro (using <code>\</code><code>ifx</code>, somewhere) one needs to
-create a macro whose expansion looks the same as the expansion of
-<code>\</code><code>jobname</code>. We find we can do this with <code>\</code><code>meaning</code>, if we strip
-the &#8220;<code>\</code><code>show</code> command&#8221; prefix.
-<p/>The full command looks like:
-<blockquote>
-<pre>
-\def\StripPrefix#1&#62;{}
-\def\jobis#1{FF\fi
- \def\predicate{#1}%
- \edef\predicate{\expandafter\StripPrefix\meaning\predicate}%
- \edef\job{\jobname}%
- \ifx\job\predicate
-}
-</pre>
-
-</blockquote><p>
-And it&#8217;s used as:
-<blockquote>
-<pre>
-\if\jobis{mainfile}%
- \message{YES}%
-\else
- \message{NO}%
-\fi
-</pre>
-</blockquote><p>
-Note that the command <code>\</code><code>StripPrefix</code> need not be defined if you&#8217;re
-using LaTeX &#8212; there&#8217;s already an
-<a href="FAQ-atsigns.html">internal command</a> <code>\</code><code>strip@prefix</code> that you can
-use.
-<p/><p>This question on the Web: <a href="http://www.tex.ac.uk/cgi-bin/texfaq2html?label=compjobnam">http://www.tex.ac.uk/cgi-bin/texfaq2html?label=compjobnam</a>
-</body>