author | Tom Sutcliffe <thomas.sutcliffe@accenture.com> |
Tue, 07 Dec 2010 17:29:09 +0000 | |
changeset 114 | ceac7084e2e5 |
parent 0 | 7f656887cf89 |
permissions | -rw-r--r-- |
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First submission to Symbian Foundation staging server.
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parents:
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<html> |
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parents:
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<head> |
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<title>pcresyntax specification</title> |
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</head> |
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<body bgcolor="#FFFFFF" text="#00005A" link="#0066FF" alink="#3399FF" vlink="#2222BB"> |
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<h1>pcresyntax man page</h1> |
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<p> |
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Return to the <a href="index.html">PCRE index page</a>. |
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</p> |
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<p> |
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This page is part of the PCRE HTML documentation. It was generated automatically |
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12 |
from the original man page. If there is any nonsense in it, please consult the |
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man page, in case the conversion went wrong. |
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<br> |
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<ul> |
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<li><a name="TOC1" href="#SEC1">PCRE REGULAR EXPRESSION SYNTAX SUMMARY</a> |
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<li><a name="TOC2" href="#SEC2">QUOTING</a> |
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<li><a name="TOC3" href="#SEC3">CHARACTERS</a> |
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<li><a name="TOC4" href="#SEC4">CHARACTER TYPES</a> |
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<li><a name="TOC5" href="#SEC5">GENERAL CATEGORY PROPERTY CODES FOR \p and \P</a> |
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<li><a name="TOC6" href="#SEC6">SCRIPT NAMES FOR \p AND \P</a> |
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<li><a name="TOC7" href="#SEC7">CHARACTER CLASSES</a> |
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<li><a name="TOC8" href="#SEC8">QUANTIFIERS</a> |
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<li><a name="TOC9" href="#SEC9">ANCHORS AND SIMPLE ASSERTIONS</a> |
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<li><a name="TOC10" href="#SEC10">MATCH POINT RESET</a> |
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<li><a name="TOC11" href="#SEC11">ALTERNATION</a> |
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<li><a name="TOC12" href="#SEC12">CAPTURING</a> |
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<li><a name="TOC13" href="#SEC13">ATOMIC GROUPS</a> |
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<li><a name="TOC14" href="#SEC14">COMMENT</a> |
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<li><a name="TOC15" href="#SEC15">OPTION SETTING</a> |
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<li><a name="TOC16" href="#SEC16">LOOKAHEAD AND LOOKBEHIND ASSERTIONS</a> |
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<li><a name="TOC17" href="#SEC17">BACKREFERENCES</a> |
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<li><a name="TOC18" href="#SEC18">SUBROUTINE REFERENCES (POSSIBLY RECURSIVE)</a> |
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<li><a name="TOC19" href="#SEC19">CONDITIONAL PATTERNS</a> |
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<li><a name="TOC20" href="#SEC20">BACKTRACKING CONTROL</a> |
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<li><a name="TOC21" href="#SEC21">NEWLINE CONVENTIONS</a> |
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<li><a name="TOC22" href="#SEC22">WHAT \R MATCHES</a> |
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<li><a name="TOC23" href="#SEC23">CALLOUTS</a> |
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<li><a name="TOC24" href="#SEC24">SEE ALSO</a> |
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<li><a name="TOC25" href="#SEC25">AUTHOR</a> |
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<li><a name="TOC26" href="#SEC26">REVISION</a> |
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</ul> |
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<br><a name="SEC1" href="#TOC1">PCRE REGULAR EXPRESSION SYNTAX SUMMARY</a><br> |
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<P> |
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The full syntax and semantics of the regular expressions that are supported by |
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PCRE are described in the |
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<a href="pcrepattern.html"><b>pcrepattern</b></a> |
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documentation. This document contains just a quick-reference summary of the |
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syntax. |
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</P> |
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<br><a name="SEC2" href="#TOC1">QUOTING</a><br> |
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<P> |
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<pre> |
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\x where x is non-alphanumeric is a literal x |
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\Q...\E treat enclosed characters as literal |
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</PRE> |
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</P> |
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<br><a name="SEC3" href="#TOC1">CHARACTERS</a><br> |
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<P> |
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<pre> |
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\a alarm, that is, the BEL character (hex 07) |
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\cx "control-x", where x is any character |
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\e escape (hex 1B) |
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\f formfeed (hex 0C) |
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\n newline (hex 0A) |
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\r carriage return (hex 0D) |
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\t tab (hex 09) |
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\ddd character with octal code ddd, or backreference |
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\xhh character with hex code hh |
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\x{hhh..} character with hex code hhh.. |
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</PRE> |
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</P> |
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<br><a name="SEC4" href="#TOC1">CHARACTER TYPES</a><br> |
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<P> |
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<pre> |
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. any character except newline; |
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in dotall mode, any character whatsoever |
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\C one byte, even in UTF-8 mode (best avoided) |
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\d a decimal digit |
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\D a character that is not a decimal digit |
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\h a horizontal whitespace character |
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\H a character that is not a horizontal whitespace character |
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\p{<i>xx</i>} a character with the <i>xx</i> property |
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\P{<i>xx</i>} a character without the <i>xx</i> property |
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\R a newline sequence |
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\s a whitespace character |
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\S a character that is not a whitespace character |
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\v a vertical whitespace character |
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\V a character that is not a vertical whitespace character |
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\w a "word" character |
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\W a "non-word" character |
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\X an extended Unicode sequence |
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</pre> |
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In PCRE, \d, \D, \s, \S, \w, and \W recognize only ASCII characters. |
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</P> |
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<br><a name="SEC5" href="#TOC1">GENERAL CATEGORY PROPERTY CODES FOR \p and \P</a><br> |
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<P> |
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<pre> |
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C Other |
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Cc Control |
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Cf Format |
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Cn Unassigned |
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103 |
Co Private use |
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Cs Surrogate |
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|
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L Letter |
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Ll Lower case letter |
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Lm Modifier letter |
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Lo Other letter |
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Lt Title case letter |
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First submission to Symbian Foundation staging server.
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parents:
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|
111 |
Lu Upper case letter |
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First submission to Symbian Foundation staging server.
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parents:
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|
112 |
L& Ll, Lu, or Lt |
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First submission to Symbian Foundation staging server.
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parents:
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|
113 |
|
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First submission to Symbian Foundation staging server.
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parents:
diff
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|
114 |
M Mark |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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|
115 |
Mc Spacing mark |
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First submission to Symbian Foundation staging server.
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parents:
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|
116 |
Me Enclosing mark |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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|
117 |
Mn Non-spacing mark |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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|
118 |
|
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First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
119 |
N Number |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
120 |
Nd Decimal number |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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|
121 |
Nl Letter number |
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parents:
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|
122 |
No Other number |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
123 |
|
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
124 |
P Punctuation |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
125 |
Pc Connector punctuation |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
126 |
Pd Dash punctuation |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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|
127 |
Pe Close punctuation |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
128 |
Pf Final punctuation |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
129 |
Pi Initial punctuation |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
130 |
Po Other punctuation |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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|
131 |
Ps Open punctuation |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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|
132 |
|
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First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
133 |
S Symbol |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
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|
134 |
Sc Currency symbol |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
135 |
Sk Modifier symbol |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
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|
136 |
Sm Mathematical symbol |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
137 |
So Other symbol |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
138 |
|
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
139 |
Z Separator |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
140 |
Zl Line separator |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
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|
141 |
Zp Paragraph separator |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
142 |
Zs Space separator |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
143 |
</PRE> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
144 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
145 |
<br><a name="SEC6" href="#TOC1">SCRIPT NAMES FOR \p AND \P</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
146 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
147 |
Arabic, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
148 |
Armenian, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
149 |
Balinese, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
150 |
Bengali, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
151 |
Bopomofo, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
152 |
Braille, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
153 |
Buginese, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
154 |
Buhid, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
155 |
Canadian_Aboriginal, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
156 |
Cherokee, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
157 |
Common, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
158 |
Coptic, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
159 |
Cuneiform, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
160 |
Cypriot, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
161 |
Cyrillic, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
162 |
Deseret, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
163 |
Devanagari, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
164 |
Ethiopic, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
165 |
Georgian, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
166 |
Glagolitic, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
167 |
Gothic, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
168 |
Greek, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
169 |
Gujarati, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
170 |
Gurmukhi, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
171 |
Han, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
172 |
Hangul, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
173 |
Hanunoo, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
174 |
Hebrew, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
175 |
Hiragana, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
176 |
Inherited, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
177 |
Kannada, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
178 |
Katakana, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
179 |
Kharoshthi, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
180 |
Khmer, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
181 |
Lao, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
182 |
Latin, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
183 |
Limbu, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
184 |
Linear_B, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
185 |
Malayalam, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
186 |
Mongolian, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
187 |
Myanmar, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
188 |
New_Tai_Lue, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
189 |
Nko, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
190 |
Ogham, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
191 |
Old_Italic, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
192 |
Old_Persian, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
193 |
Oriya, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
194 |
Osmanya, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
195 |
Phags_Pa, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
196 |
Phoenician, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
197 |
Runic, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
198 |
Shavian, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
199 |
Sinhala, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
200 |
Syloti_Nagri, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
201 |
Syriac, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
202 |
Tagalog, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
203 |
Tagbanwa, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
204 |
Tai_Le, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
205 |
Tamil, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
206 |
Telugu, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
207 |
Thaana, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
208 |
Thai, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
209 |
Tibetan, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
210 |
Tifinagh, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
211 |
Ugaritic, |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
212 |
Yi. |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
213 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
214 |
<br><a name="SEC7" href="#TOC1">CHARACTER CLASSES</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
215 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
216 |
<pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
217 |
[...] positive character class |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
218 |
[^...] negative character class |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
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|
219 |
[x-y] range (can be used for hex characters) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
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|
220 |
[[:xxx:]] positive POSIX named set |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
221 |
[[:^xxx:]] negative POSIX named set |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
222 |
|
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
223 |
alnum alphanumeric |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
224 |
alpha alphabetic |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
225 |
ascii 0-127 |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
226 |
blank space or tab |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
227 |
cntrl control character |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
228 |
digit decimal digit |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
229 |
graph printing, excluding space |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
230 |
lower lower case letter |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
231 |
print printing, including space |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
232 |
punct printing, excluding alphanumeric |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
233 |
space whitespace |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
234 |
upper upper case letter |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
235 |
word same as \w |
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236 |
xdigit hexadecimal digit |
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237 |
</pre> |
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238 |
In PCRE, POSIX character set names recognize only ASCII characters. You can use |
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239 |
\Q...\E inside a character class. |
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240 |
</P> |
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241 |
<br><a name="SEC8" href="#TOC1">QUANTIFIERS</a><br> |
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242 |
<P> |
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243 |
<pre> |
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244 |
? 0 or 1, greedy |
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245 |
?+ 0 or 1, possessive |
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246 |
?? 0 or 1, lazy |
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247 |
* 0 or more, greedy |
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248 |
*+ 0 or more, possessive |
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249 |
*? 0 or more, lazy |
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250 |
+ 1 or more, greedy |
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251 |
++ 1 or more, possessive |
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252 |
+? 1 or more, lazy |
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253 |
{n} exactly n |
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254 |
{n,m} at least n, no more than m, greedy |
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255 |
{n,m}+ at least n, no more than m, possessive |
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256 |
{n,m}? at least n, no more than m, lazy |
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257 |
{n,} n or more, greedy |
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258 |
{n,}+ n or more, possessive |
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259 |
{n,}? n or more, lazy |
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260 |
</PRE> |
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261 |
</P> |
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262 |
<br><a name="SEC9" href="#TOC1">ANCHORS AND SIMPLE ASSERTIONS</a><br> |
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263 |
<P> |
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264 |
<pre> |
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265 |
\b word boundary |
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266 |
\B not a word boundary |
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267 |
^ start of subject |
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268 |
also after internal newline in multiline mode |
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269 |
\A start of subject |
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270 |
$ end of subject |
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271 |
also before newline at end of subject |
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272 |
also before internal newline in multiline mode |
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273 |
\Z end of subject |
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274 |
also before newline at end of subject |
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275 |
\z end of subject |
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276 |
\G first matching position in subject |
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277 |
</PRE> |
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278 |
</P> |
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279 |
<br><a name="SEC10" href="#TOC1">MATCH POINT RESET</a><br> |
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280 |
<P> |
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281 |
<pre> |
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|
282 |
\K reset start of match |
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283 |
</PRE> |
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|
284 |
</P> |
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|
285 |
<br><a name="SEC11" href="#TOC1">ALTERNATION</a><br> |
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First submission to Symbian Foundation staging server.
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|
286 |
<P> |
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First submission to Symbian Foundation staging server.
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|
287 |
<pre> |
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|
288 |
expr|expr|expr... |
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|
289 |
</PRE> |
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|
290 |
</P> |
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|
291 |
<br><a name="SEC12" href="#TOC1">CAPTURING</a><br> |
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|
292 |
<P> |
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First submission to Symbian Foundation staging server.
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|
293 |
<pre> |
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First submission to Symbian Foundation staging server.
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|
294 |
(...) capturing group |
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First submission to Symbian Foundation staging server.
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parents:
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|
295 |
(?<name>...) named capturing group (Perl) |
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First submission to Symbian Foundation staging server.
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parents:
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|
296 |
(?'name'...) named capturing group (Perl) |
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First submission to Symbian Foundation staging server.
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parents:
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|
297 |
(?P<name>...) named capturing group (Python) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
298 |
(?:...) non-capturing group |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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changeset
|
299 |
(?|...) non-capturing group; reset group numbers for |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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changeset
|
300 |
capturing groups in each alternative |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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changeset
|
301 |
</PRE> |
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First submission to Symbian Foundation staging server.
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parents:
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|
302 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
303 |
<br><a name="SEC13" href="#TOC1">ATOMIC GROUPS</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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changeset
|
304 |
<P> |
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First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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|
305 |
<pre> |
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First submission to Symbian Foundation staging server.
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parents:
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|
306 |
(?>...) atomic, non-capturing group |
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First submission to Symbian Foundation staging server.
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parents:
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|
307 |
</PRE> |
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First submission to Symbian Foundation staging server.
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parents:
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changeset
|
308 |
</P> |
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First submission to Symbian Foundation staging server.
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parents:
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|
309 |
<br><a name="SEC14" href="#TOC1">COMMENT</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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|
310 |
<P> |
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First submission to Symbian Foundation staging server.
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parents:
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changeset
|
311 |
<pre> |
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First submission to Symbian Foundation staging server.
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parents:
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|
312 |
(?#....) comment (not nestable) |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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|
313 |
</PRE> |
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First submission to Symbian Foundation staging server.
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parents:
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|
314 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
315 |
<br><a name="SEC15" href="#TOC1">OPTION SETTING</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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changeset
|
316 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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|
317 |
<pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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changeset
|
318 |
(?i) caseless |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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changeset
|
319 |
(?J) allow duplicate names |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
320 |
(?m) multiline |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
321 |
(?s) single line (dotall) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
322 |
(?U) default ungreedy (lazy) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
323 |
(?x) extended (ignore white space) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
324 |
(?-...) unset option(s) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
325 |
</PRE> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
326 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
327 |
<br><a name="SEC16" href="#TOC1">LOOKAHEAD AND LOOKBEHIND ASSERTIONS</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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changeset
|
328 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
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changeset
|
329 |
<pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
330 |
(?=...) positive look ahead |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
331 |
(?!...) negative look ahead |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
332 |
(?<=...) positive look behind |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
333 |
(?<!...) negative look behind |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
334 |
</pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
335 |
Each top-level branch of a look behind must be of a fixed length. |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
336 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
337 |
<br><a name="SEC17" href="#TOC1">BACKREFERENCES</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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changeset
|
338 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
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parents:
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|
339 |
<pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
340 |
\n reference by number (can be ambiguous) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
341 |
\gn reference by number |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
342 |
\g{n} reference by number |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
343 |
\g{-n} relative reference by number |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
344 |
\k<name> reference by name (Perl) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
345 |
\k'name' reference by name (Perl) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
346 |
\g{name} reference by name (Perl) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
347 |
\k{name} reference by name (.NET) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
348 |
(?P=name) reference by name (Python) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
349 |
</PRE> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
350 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
351 |
<br><a name="SEC18" href="#TOC1">SUBROUTINE REFERENCES (POSSIBLY RECURSIVE)</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
352 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
353 |
<pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
354 |
(?R) recurse whole pattern |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
355 |
(?n) call subpattern by absolute number |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
356 |
(?+n) call subpattern by relative number |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
357 |
(?-n) call subpattern by relative number |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
358 |
(?&name) call subpattern by name (Perl) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
359 |
(?P>name) call subpattern by name (Python) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
360 |
\g<name> call subpattern by name (Oniguruma) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
361 |
\g'name' call subpattern by name (Oniguruma) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
362 |
\g<n> call subpattern by absolute number (Oniguruma) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
363 |
\g'n' call subpattern by absolute number (Oniguruma) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
364 |
\g<+n> call subpattern by relative number (PCRE extension) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
365 |
\g'+n' call subpattern by relative number (PCRE extension) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
366 |
\g<-n> call subpattern by relative number (PCRE extension) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
367 |
\g'-n' call subpattern by relative number (PCRE extension) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
368 |
</PRE> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
369 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
370 |
<br><a name="SEC19" href="#TOC1">CONDITIONAL PATTERNS</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
371 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
372 |
<pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
373 |
(?(condition)yes-pattern) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
374 |
(?(condition)yes-pattern|no-pattern) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
375 |
|
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
376 |
(?(n)... absolute reference condition |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
377 |
(?(+n)... relative reference condition |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
378 |
(?(-n)... relative reference condition |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
379 |
(?(<name>)... named reference condition (Perl) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
380 |
(?('name')... named reference condition (Perl) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
381 |
(?(name)... named reference condition (PCRE) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
382 |
(?(R)... overall recursion condition |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
383 |
(?(Rn)... specific group recursion condition |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
384 |
(?(R&name)... specific recursion condition |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
385 |
(?(DEFINE)... define subpattern for reference |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
386 |
(?(assert)... assertion condition |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
387 |
</PRE> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
388 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
389 |
<br><a name="SEC20" href="#TOC1">BACKTRACKING CONTROL</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
390 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
391 |
The following act immediately they are reached: |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
392 |
<pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
393 |
(*ACCEPT) force successful match |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
394 |
(*FAIL) force backtrack; synonym (*F) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
395 |
</pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
396 |
The following act only when a subsequent match failure causes a backtrack to |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
397 |
reach them. They all force a match failure, but they differ in what happens |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
398 |
afterwards. Those that advance the start-of-match point do so only if the |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
399 |
pattern is not anchored. |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
400 |
<pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
401 |
(*COMMIT) overall failure, no advance of starting point |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
402 |
(*PRUNE) advance to next starting character |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
403 |
(*SKIP) advance start to current matching position |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
404 |
(*THEN) local failure, backtrack to next alternation |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
405 |
</PRE> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
406 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
407 |
<br><a name="SEC21" href="#TOC1">NEWLINE CONVENTIONS</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
408 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
409 |
These are recognized only at the very start of the pattern or after a |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
410 |
(*BSR_...) option. |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
411 |
<pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
412 |
(*CR) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
413 |
(*LF) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
414 |
(*CRLF) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
415 |
(*ANYCRLF) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
416 |
(*ANY) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
417 |
</PRE> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
418 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
419 |
<br><a name="SEC22" href="#TOC1">WHAT \R MATCHES</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
420 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
421 |
These are recognized only at the very start of the pattern or after a |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
422 |
(*...) option that sets the newline convention. |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
423 |
<pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
424 |
(*BSR_ANYCRLF) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
425 |
(*BSR_UNICODE) |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
426 |
</PRE> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
427 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
428 |
<br><a name="SEC23" href="#TOC1">CALLOUTS</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
429 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
430 |
<pre> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
431 |
(?C) callout |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
432 |
(?Cn) callout with data n |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
433 |
</PRE> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
434 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
435 |
<br><a name="SEC24" href="#TOC1">SEE ALSO</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
436 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
437 |
<b>pcrepattern</b>(3), <b>pcreapi</b>(3), <b>pcrecallout</b>(3), |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
438 |
<b>pcrematching</b>(3), <b>pcre</b>(3). |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
439 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
440 |
<br><a name="SEC25" href="#TOC1">AUTHOR</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
441 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
442 |
Philip Hazel |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
443 |
<br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
444 |
University Computing Service |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
445 |
<br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
446 |
Cambridge CB2 3QH, England. |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
447 |
<br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
448 |
</P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
449 |
<br><a name="SEC26" href="#TOC1">REVISION</a><br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
450 |
<P> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
451 |
Last updated: 09 April 2008 |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
452 |
<br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
453 |
Copyright © 1997-2008 University of Cambridge. |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
454 |
<br> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
455 |
<p> |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
456 |
Return to the <a href="index.html">PCRE index page</a>. |
7f656887cf89
First submission to Symbian Foundation staging server.
Tom Sutcliffe <thomas.sutcliffe@accenture.com>
parents:
diff
changeset
|
457 |
</p> |