/[pcre]/code/trunk/doc/pcrecompat.3
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revision 442 by ph10, Fri Sep 11 10:21:02 2009 UTC revision 450 by ph10, Wed Sep 16 10:56:40 2009 UTC
# Line 46  encountered by PCRE, an error is generat Line 46  encountered by PCRE, an error is generat
46  built with Unicode character property support. The properties that can be  built with Unicode character property support. The properties that can be
47  tested with \ep and \eP are limited to the general category properties such as  tested with \ep and \eP are limited to the general category properties such as
48  Lu and Nd, script names such as Greek or Han, and the derived properties Any  Lu and Nd, script names such as Greek or Han, and the derived properties Any
49  and L&.  and L&. PCRE does support the Cs (surrogate) property, which Perl does not; the
50    Perl documentation says "Because Perl hides the need for the user to understand
51    the internal representation of Unicode characters, there is no need to
52    implement the somewhat messy concept of surrogates."
53  .P  .P
54  7. PCRE does support the \eQ...\eE escape for quoting substrings. Characters in  7. PCRE does support the \eQ...\eE escape for quoting substrings. Characters in
55  between are treated as literals. This is slightly different from Perl in that $  between are treated as literals. This is slightly different from Perl in that $
# Line 83  the pattern /^(a(b)?)+$/ in Perl leaves Line 86  the pattern /^(a(b)?)+$/ in Perl leaves
86  .P  .P
87  11. PCRE does support Perl 5.10's backtracking verbs (*ACCEPT), (*FAIL), (*F),  11. PCRE does support Perl 5.10's backtracking verbs (*ACCEPT), (*FAIL), (*F),
88  (*COMMIT), (*PRUNE), (*SKIP), and (*THEN), but only in the forms without an  (*COMMIT), (*PRUNE), (*SKIP), and (*THEN), but only in the forms without an
89  argument. PCRE does not support (*MARK). If (*ACCEPT) is within capturing  argument. PCRE does not support (*MARK).
 parentheses, PCRE does not set that capture group; this is different to Perl.  
90  .P  .P
91  12. PCRE provides some extensions to the Perl regular expression facilities.  12. PCRE provides some extensions to the Perl regular expression facilities.
92  Perl 5.10 will include new features that are not in earlier versions, some of  Perl 5.10 will include new features that are not in earlier versions, some of
# Line 143  Cambridge CB2 3QH, England. Line 145  Cambridge CB2 3QH, England.
145  .rs  .rs
146  .sp  .sp
147  .nf  .nf
148  Last updated: 11 September 2009  Last updated: 16 September 2009
149  Copyright (c) 1997-2009 University of Cambridge.  Copyright (c) 1997-2009 University of Cambridge.
150  .fi  .fi
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