/[pcre]/code/trunk/doc/pcrecompat.3
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revision 99 by ph10, Tue Mar 6 12:27:42 2007 UTC revision 181 by ph10, Wed Jun 13 14:55:18 2007 UTC
# Line 6  PCRE - Perl-compatible regular expressio Line 6  PCRE - Perl-compatible regular expressio
6  .sp  .sp
7  This document describes the differences in the ways that PCRE and Perl handle  This document describes the differences in the ways that PCRE and Perl handle
8  regular expressions. The differences described here are mainly with respect to  regular expressions. The differences described here are mainly with respect to
9  Perl 5.8, though PCRE version 7.0 contains some features that are expected to  Perl 5.8, though PCRE versions 7.0 and later contain some features that are
10  be in the forthcoming Perl 5.10.  expected to be in the forthcoming Perl 5.10.
11  .P  .P
12  1. PCRE has only a subset of Perl's UTF-8 and Unicode support. Details of what  1. PCRE has only a subset of Perl's UTF-8 and Unicode support. Details of what
13  it does have are given in the  it does have are given in the
# Line 94  string. Perl requires them all to have t Line 94  string. Perl requires them all to have t
94  meta-character matches only at the very end of the string.  meta-character matches only at the very end of the string.
95  .sp  .sp
96  (c) If PCRE_EXTRA is set, a backslash followed by a letter with no special  (c) If PCRE_EXTRA is set, a backslash followed by a letter with no special
97  meaning is faulted. Otherwise, like Perl, the backslash is ignored. (Perl can  meaning is faulted. Otherwise, like Perl, the backslash is quietly ignored.
98  be made to issue a warning.)  (Perl can be made to issue a warning.)
99  .sp  .sp
100  (d) If PCRE_UNGREEDY is set, the greediness of the repetition quantifiers is  (d) If PCRE_UNGREEDY is set, the greediness of the repetition quantifiers is
101  inverted, that is, by default they are not greedy, but if followed by a  inverted, that is, by default they are not greedy, but if followed by a
# Line 132  Cambridge CB2 3QH, England. Line 132  Cambridge CB2 3QH, England.
132  .rs  .rs
133  .sp  .sp
134  .nf  .nf
135  Last updated: 06 March 2007  Last updated: 13 June 2007
136  Copyright (c) 1997-2007 University of Cambridge.  Copyright (c) 1997-2007 University of Cambridge.
137  .fi  .fi
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