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| .TH PCRESYNTAX 3 | .TH PCRESYNTAX 3 "26 April 2013" "PCRE 8.33" |
| .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 25 documentation. This document contains a quick-referenc
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Line 25 documentation. This document contains a quick-referenc
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| \ea alarm, that is, the BEL character (hex 07) |
\ea alarm, that is, the BEL character (hex 07) |
| \ecx "control-x", where x is any ASCII character |
\ecx "control-x", where x is any ASCII character |
| \ee escape (hex 1B) |
\ee escape (hex 1B) |
| \ef formfeed (hex 0C) | \ef form feed (hex 0C) |
| \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) |
|
Line 42 documentation. This document contains a quick-referenc
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Line 42 documentation. This document contains a quick-referenc
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| \eC one data unit, even in UTF mode (best avoided) |
\eC one data unit, even in UTF mode (best avoided) |
| \ed a decimal digit |
\ed a decimal digit |
| \eD a character that is not a decimal digit |
\eD a character that is not a decimal digit |
| \eh a horizontal whitespace character | \eh a horizontal white space character |
| \eH a character that is not a horizontal whitespace character | \eH a character that is not a horizontal white space character |
| \eN a character that is not a newline |
\eN a character that is not a newline |
| \ep{\fIxx\fP} a character with the \fIxx\fP property |
\ep{\fIxx\fP} a character with the \fIxx\fP property |
| \eP{\fIxx\fP} a character without the \fIxx\fP property |
\eP{\fIxx\fP} a character without the \fIxx\fP property |
| \eR a newline sequence |
\eR a newline sequence |
| \es a whitespace character | \es a white space character |
| \eS a character that is not a whitespace character | \eS a character that is not a white space character |
| \ev a vertical whitespace character | \ev a vertical white space character |
| \eV a character that is not a vertical whitespace character | \eV a character that is not a vertical white space character |
| \ew a "word" character |
\ew a "word" character |
| \eW a "non-word" character |
\eW a "non-word" character |
| \eX an extended Unicode sequence | \eX a Unicode extended grapheme cluster |
| .sp |
.sp |
| In PCRE, by default, \ed, \eD, \es, \eS, \ew, and \eW recognize only ASCII |
In PCRE, by default, \ed, \eD, \es, \eS, \ew, and \eW recognize only ASCII |
| characters, even in a UTF mode. However, this can be changed by setting the |
characters, even in a UTF mode. However, this can be changed by setting the |
|
Line 116 PCRE_UCP option.
|
Line 116 PCRE_UCP option.
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| 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, FF, CR |
| |
Xuc Univerally-named character: one that can be |
| |
represented by a Universal Character Name |
| Xwd Perl word: property Xan or underscore |
Xwd Perl word: property Xan or underscore |
| . |
. |
| . |
. |
|
Line 127 Armenian,
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Line 129 Armenian,
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| Avestan, |
Avestan, |
| Balinese, |
Balinese, |
| Bamum, |
Bamum, |
| |
Batak, |
| Bengali, |
Bengali, |
| Bopomofo, |
Bopomofo, |
| |
Brahmi, |
| Braille, |
Braille, |
| Buginese, |
Buginese, |
| Buhid, |
Buhid, |
| Canadian_Aboriginal, |
Canadian_Aboriginal, |
| Carian, |
Carian, |
| |
Chakma, |
| Cham, |
Cham, |
| Cherokee, |
Cherokee, |
| Common, |
Common, |
|
Line 176 Lisu,
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Line 181 Lisu,
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| Lycian, |
Lycian, |
| Lydian, |
Lydian, |
| Malayalam, |
Malayalam, |
| |
Mandaic, |
| Meetei_Mayek, |
Meetei_Mayek, |
| |
Meroitic_Cursive, |
| |
Meroitic_Hieroglyphs, |
| |
Miao, |
| Mongolian, |
Mongolian, |
| Myanmar, |
Myanmar, |
| New_Tai_Lue, |
New_Tai_Lue, |
|
Line 195 Rejang,
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Line 204 Rejang,
|
| Runic, |
Runic, |
| Samaritan, |
Samaritan, |
| Saurashtra, |
Saurashtra, |
| |
Sharada, |
| Shavian, |
Shavian, |
| Sinhala, |
Sinhala, |
| |
Sora_Sompeng, |
| Sundanese, |
Sundanese, |
| Syloti_Nagri, |
Syloti_Nagri, |
| Syriac, |
Syriac, |
|
Line 205 Tagbanwa,
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Line 216 Tagbanwa,
|
| Tai_Le, |
Tai_Le, |
| Tai_Tham, |
Tai_Tham, |
| Tai_Viet, |
Tai_Viet, |
| |
Takri, |
| Tamil, |
Tamil, |
| Telugu, |
Telugu, |
| Thaana, |
Thaana, |
|
Line 235 Yi.
|
Line 247 Yi.
|
| lower lower case letter |
lower lower case letter |
| print printing, including space |
print printing, including space |
| punct printing, excluding alphanumeric |
punct printing, excluding alphanumeric |
| space whitespace | space white space |
| upper upper case letter |
upper upper case letter |
| word same as \ew |
word same as \ew |
| xdigit hexadecimal digit |
xdigit hexadecimal digit |
|
Line 335 but some of them use Unicode properties if PCRE_UCP is
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Line 347 but some of them use Unicode properties if PCRE_UCP is
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| The following are recognized only at the start of a pattern or after one of the |
The following are recognized only at the start of a pattern or after one of the |
| newline-setting options with similar syntax: |
newline-setting options with similar syntax: |
| .sp |
.sp |
| |
(*LIMIT_MATCH=d) set the match limit to d (decimal number) |
| |
(*LIMIT_RECURSION=d) set the recursion limit to d (decimal number) |
| (*NO_START_OPT) no start-match optimization (PCRE_NO_START_OPTIMIZE) |
(*NO_START_OPT) no start-match optimization (PCRE_NO_START_OPTIMIZE) |
| (*UTF8) set UTF-8 mode: 8-bit library (PCRE_UTF8) |
(*UTF8) set UTF-8 mode: 8-bit library (PCRE_UTF8) |
| (*UTF16) set UTF-16 mode: 16-bit library (PCRE_UTF16) |
(*UTF16) set UTF-16 mode: 16-bit library (PCRE_UTF16) |
| |
(*UTF32) set UTF-32 mode: 32-bit library (PCRE_UTF32) |
| |
(*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) |
| . |
. |
| . |
. |
|
Line 432 pattern is not anchored.
|
Line 448 pattern is not anchored.
|
| .rs |
.rs |
| .sp |
.sp |
| These are recognized only at the very start of the pattern or after a |
These are recognized only at the very start of the pattern or after a |
| (*BSR_...), (*UTF8), (*UTF16) or (*UCP) option. | (*BSR_...), (*UTF8), (*UTF16), (*UTF32) or (*UCP) option. |
| .sp |
.sp |
| (*CR) carriage return only |
(*CR) carriage return only |
| (*LF) linefeed only |
(*LF) linefeed only |
|
Line 479 Cambridge CB2 3QH, England.
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Line 495 Cambridge CB2 3QH, England.
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| .rs |
.rs |
| .sp |
.sp |
| .nf |
.nf |
| Last updated: 10 January 2012 | Last updated: 26 April 2013 |
| Copyright (c) 1997-2012 University of Cambridge. | Copyright (c) 1997-2013 University of Cambridge. |
| .fi |
.fi |
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