/[pcre]/code/trunk/doc/pcrepattern.3
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revision 607 by ph10, Sun Jun 12 15:09:49 2011 UTC revision 628 by ph10, Wed Jul 20 18:03:20 2011 UTC
# Line 757  Characters with the "mark" property are Line 757  Characters with the "mark" property are
757  preceding character. None of them have codepoints less than 256, so in  preceding character. None of them have codepoints less than 256, so in
758  non-UTF-8 mode \eX matches any one character.  non-UTF-8 mode \eX matches any one character.
759  .P  .P
760    Note that recent versions of Perl have changed \eX to match what Unicode calls
761    an "extended grapheme cluster", which has a more complicated definition.
762    .P
763  Matching characters by Unicode property is not fast, because PCRE has to search  Matching characters by Unicode property is not fast, because PCRE has to search
764  a structure that contains data for over fifteen thousand characters. That is  a structure that contains data for over fifteen thousand characters. That is
765  why the traditional escape sequences such as \ed and \ew do not use Unicode  why the traditional escape sequences such as \ed and \ew do not use Unicode
# Line 2752  Cambridge CB2 3QH, England. Line 2755  Cambridge CB2 3QH, England.
2755  .rs  .rs
2756  .sp  .sp
2757  .nf  .nf
2758  Last updated: 12 June 2011  Last updated: 20 July 2011
2759  Copyright (c) 1997-2011 University of Cambridge.  Copyright (c) 1997-2011 University of Cambridge.
2760  .fi  .fi

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