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<title>MHonArc Resources: SUBJECTREPLYRXP</title>
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<td align="left" width="50%">[Prev: <a href="subjectheader.html">SUBJECTHEADER</a>]</td><td><nobr>[<a href="../resources.html#subjectreplyrxp">Resources</a>][<a href="../mhonarc.html">TOC</a>]</nobr></td><td align="right" width="50%">[Next: <a href="subjectstripcode.html">SUBJECTSTRIPCODE</a>]</td></tr></table>
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<h1>SUBJECTREPLYRXP</h1>
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<ul>
<li><a href="#syntax">Syntax</a>
<li><a href="#description">Description</a>
<li><a href="#default">Default Setting</a>
<li><a href="#rcvars">Resource Variables</a>
<li><a href="#examples">Examples</a>
<li><a href="#version">Version</a>
<li><a href="#seealso">See Also</a>
</ul>
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<h2><a name="syntax">Syntax</a></h2>
<dl>
<dt><strong>Envariable</strong></dt>
<dd><p>
<code>M2H_SUBJECTREPLYRXP=</code><var>perl_regex</var>
</p>
</dd>
<dt><strong>Element</strong></dt>
<dd><p>
<code><SUBJECTREPLYRXP></code><br>
<var>perl_regex</var><br>
<code></SUBJECTREPLYRXP></code><br>
</p>
</dd>
<dt><strong>Command-line Option</strong></dt>
<dd><p>
<code>-subjectreplyrxp <var>perl_regex</var></code>
</p>
</dd>
</dl>
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<hr>
<h2><a name="description">Description</a></h2>
<p>SUBJECTREPLYRXP defines the Perl regular expression matching
subject text that denotes a reply message. For example, the
string "<tt>Re: </tt>" is commonly prepended to the subject
to denote a reply.
</p>
<p>SUBJECTREPLYRXP is used by MHonArc for sorting and threading
purposes. The regex defined is used in <b><tt>s///</tt></b>
operation loops with the case-insensitive modifier. Hence, the regex should eventually fail if
called repeatedly on the same string in an <b><tt>s///</tt></b> operation.
If not, an infinite loop will result. In sum, SUBJECTREPLYRXP
should <strong>NOT</strong> be able to match the null string. Also,
the regex should be anchored to the beginning of the string.
</p>
<p>The SUBJECTREPLYRXP is normally changed to suit a particular
locale or if unusual notations are being used to denote replies.
</p>
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<h2><a name="default">Default Setting</a></h2>
<pre>
^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*
</pre>
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<hr>
<h2><a name="rcvars">Resource Variables</a></h2>
<p>N/A
</p>
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<h2><a name="examples">Examples</a></h2>
<p>None.
</p>
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<hr>
<h2><a name="version">Version</a></h2>
<p>2.2.0
</p>
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<hr>
<h2><a name="seealso">See Also</a></h2>
<p>
<a href="subjectarticlerxp.html">SUBJECTARTICLERXP</a>
</p>
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$Date: 2003/10/06 22:04:20 $ <br>
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