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version 1.1.1.4, 2013/07/22 08:25:56	version 1.1.1.5, 2014/06/15 19:46:05
Line 1	Line 1
.TH PCRESYNTAX 3 "26 April 2013" "PCRE 8.33"	.TH PCRESYNTAX 3 "12 November 2013" "PCRE 8.34"
.SH NAME	.SH NAME
PCRE - Perl-compatible regular expressions	PCRE - Perl-compatible regular expressions
.SH "PCRE REGULAR EXPRESSION SYNTAX SUMMARY"	.SH "PCRE REGULAR EXPRESSION SYNTAX SUMMARY"
Line 29 documentation. This document contains a quick-referenc	Line 29 documentation. This document contains a quick-referenc
\en newline (hex 0A)	\en newline (hex 0A)
\er carriage return (hex 0D)	\er carriage return (hex 0D)
\et tab (hex 09)	\et tab (hex 09)
	\e0dd character with octal code 0dd
\eddd character with octal code ddd, or backreference	\eddd character with octal code ddd, or backreference
	\eo{ddd..} character with octal code ddd..
\exhh character with hex code hh	\exhh character with hex code hh
\ex{hhh..} character with hex code hhh..	\ex{hhh..} character with hex code hhh..
	.sp
	Note that \e0dd is always an octal code, and that \e8 and \e9 are the literal
	characters "8" and "9".
.	.
.	.
.SH "CHARACTER TYPES"	.SH "CHARACTER TYPES"
Line 56 documentation. This document contains a quick-referenc	Line 61 documentation. This document contains a quick-referenc
\eW a "non-word" character	\eW a "non-word" character
\eX a Unicode extended grapheme cluster	\eX a Unicode extended grapheme cluster
.sp	.sp
In PCRE, by default, \ed, \eD, \es, \eS, \ew, and \eW recognize only ASCII	By default, \ed, \es, and \ew match only ASCII characters, even in UTF-8 mode
characters, even in a UTF mode. However, this can be changed by setting the	or in the 16- bit and 32-bit libraries. However, if locale-specific matching is
PCRE_UCP option.	happening, \es and \ew may also match characters with code points in the range
	128-255. If the PCRE_UCP option is set, the behaviour of these escape sequences
	is changed to use Unicode properties and they match many more characters.
.	.
.	.
.SH "GENERAL CATEGORY PROPERTIES FOR \ep and \eP"	.SH "GENERAL CATEGORY PROPERTIES FOR \ep and \eP"
Line 115 PCRE_UCP option.	Line 122 PCRE_UCP option.
.sp	.sp
Xan Alphanumeric: union of properties L and N	Xan Alphanumeric: union of properties L and N
Xps POSIX space: property Z or tab, NL, VT, FF, CR	Xps POSIX space: property Z or tab, NL, VT, FF, CR
Xsp Perl space: property Z or tab, NL, FF, CR	Xsp Perl space: property Z or tab, NL, VT, FF, CR
Xuc Univerally-named character: one that can be	Xuc Univerally-named character: one that can be
represented by a Universal Character Name	represented by a Universal Character Name
Xwd Perl word: property Xan or underscore	Xwd Perl word: property Xan or underscore
	.sp
	Perl and POSIX space are now the same. Perl added VT to its space character set
	at release 5.18 and PCRE changed at release 8.34.
.	.
.	.
.SH "SCRIPT NAMES FOR \ep AND \eP"	.SH "SCRIPT NAMES FOR \ep AND \eP"
Line 355 newline-setting options with similar syntax:	Line 365 newline-setting options with similar syntax:
(*UTF32) set UTF-32 mode: 32-bit library (PCRE_UTF32)	(*UTF32) set UTF-32 mode: 32-bit library (PCRE_UTF32)
(*UTF) set appropriate UTF mode for the library in use	(*UTF) set appropriate UTF mode for the library in use
(*UCP) set PCRE_UCP (use Unicode properties for \ed etc)	(*UCP) set PCRE_UCP (use Unicode properties for \ed etc)
	.sp
	Note that LIMIT_MATCH and LIMIT_RECURSION can only reduce the value of the
	limits set by the caller of pcre_exec(), not increase them.
.	.
.	.
.SH "LOOKAHEAD AND LOOKBEHIND ASSERTIONS"	.SH "LOOKAHEAD AND LOOKBEHIND ASSERTIONS"
Line 495 Cambridge CB2 3QH, England.	Line 508 Cambridge CB2 3QH, England.
.rs	.rs
.sp	.sp
.nf	.nf
Last updated: 26 April 2013	Last updated: 12 November 2013
Copyright (c) 1997-2013 University of Cambridge.	Copyright (c) 1997-2013 University of Cambridge.
.fi	.fi

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