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http://bugs.exim.org/show_bug.cgi?id=1100
Philip Hazel <ph10@???> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #8 from Philip Hazel <ph10@???> 2011-07-19 11:05:19 ---
I have committed a patch that fixes this. I appreciate your efforts in trying
to generate a patch, but in fact you were looking in the wrong place! The bug
was a dozen or so lines above where your patch applies. It was triggered by \X
trying to match at a point where the first character had the M property. This
should fail under the current definition of \X, which is "an extended Unicode
sequence",
documented as being equivalent to (?>\PM\pM*) and the fixed code now does fail.
However, while investigating this, I discovered that Perl has changed its
definition of \X to "extended grapheme cluster", which is a Unicode artefact in
which the initial \PM character is optional. I am wondering whether I should
change PCRE, or provide an option to do so.
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