diff options
Diffstat (limited to 'ext/mbstring/oniguruma/doc/RE')
| -rw-r--r-- | ext/mbstring/oniguruma/doc/RE | 153 |
1 files changed, 95 insertions, 58 deletions
diff --git a/ext/mbstring/oniguruma/doc/RE b/ext/mbstring/oniguruma/doc/RE index 5a2783d167..21efe531a4 100644 --- a/ext/mbstring/oniguruma/doc/RE +++ b/ext/mbstring/oniguruma/doc/RE @@ -1,4 +1,4 @@ -Oniguruma Regular Expressions Version 4.3.0 2006/08/17 +Oniguruma Regular Expressions Version 5.9.1 2007/09/05 syntax: ONIG_SYNTAX_RUBY (default) @@ -70,6 +70,38 @@ syntax: ONIG_SYNTAX_RUBY (default) \H non hexadecimal digit char + Character Property + + * \p{property-name} + * \p{^property-name} (negative) + * \P{property-name} (negative) + + property-name: + + + works on all encodings + Alnum, Alpha, Blank, Cntrl, Digit, Graph, Lower, + Print, Punct, Space, Upper, XDigit, Word, ASCII, + + + works on EUC_JP, Shift_JIS + Hiragana, Katakana + + + works on UTF8, UTF16, UTF32 + Any, Assigned, C, Cc, Cf, Cn, Co, Cs, L, Ll, Lm, Lo, Lt, Lu, + M, Mc, Me, Mn, N, Nd, Nl, No, P, Pc, Pd, Pe, Pf, Pi, Po, Ps, + S, Sc, Sk, Sm, So, Z, Zl, Zp, Zs, + Arabic, Armenian, Bengali, Bopomofo, Braille, Buginese, + Buhid, Canadian_Aboriginal, Cherokee, Common, Coptic, + Cypriot, Cyrillic, Deseret, Devanagari, Ethiopic, Georgian, + Glagolitic, Gothic, Greek, Gujarati, Gurmukhi, Han, Hangul, + Hanunoo, Hebrew, Hiragana, Inherited, Kannada, Katakana, + Kharoshthi, Khmer, Lao, Latin, Limbu, Linear_B, Malayalam, + Mongolian, Myanmar, New_Tai_Lue, Ogham, Old_Italic, Old_Persian, + Oriya, Osmanya, Runic, Shavian, Sinhala, Syloti_Nagri, Syriac, + Tagalog, Tagbanwa, Tai_Le, Tamil, Telugu, Thaana, Thai, Tibetan, + Tifinagh, Ugaritic, Yi + + + 4. Quantifier greedy @@ -111,11 +143,7 @@ syntax: ONIG_SYNTAX_RUBY (default) \A beginning of string \Z end of string, or before newline at the end \z end of string - \G matching start position (*) - - * Ruby Regexp: - previous end-of-match position - (This specification is not related to this library.) + \G matching start position 6. Character class @@ -135,40 +163,43 @@ syntax: ONIG_SYNTAX_RUBY (default) Not Unicode Case: - alnum alphabet or digit char - alpha alphabet - ascii code value: [0 - 127] - blank \t, \x20 - cntrl - digit 0-9 - graph include all of multibyte encoded characters - lower - print include all of multibyte encoded characters - punct - space \t, \n, \v, \f, \r, \x20 - upper - xdigit 0-9, a-f, A-F + alnum alphabet or digit char + alpha alphabet + ascii code value: [0 - 127] + blank \t, \x20 + cntrl + digit 0-9 + graph include all of multibyte encoded characters + lower + print include all of multibyte encoded characters + punct + space \t, \n, \v, \f, \r, \x20 + upper + xdigit 0-9, a-f, A-F + word alphanumeric, "_" and multibyte characters Unicode Case: - alnum Letter | Mark | Decimal_Number - alpha Letter | Mark - ascii 0000 - 007F - blank Space_Separator | 0009 - cntrl Control | Format | Unassigned | Private_Use | Surrogate - digit Decimal_Number - graph [[:^space:]] && ^Control && ^Unassigned && ^Surrogate - lower Lowercase_Letter - print [[:graph:]] | [[:space:]] - punct Connector_Punctuation | Dash_Punctuation | Close_Punctuation | - Final_Punctuation | Initial_Punctuation | Other_Punctuation | - Open_Punctuation - space Space_Separator | Line_Separator | Paragraph_Separator | - 0009 | 000A | 000B | 000C | 000D | 0085 - upper Uppercase_Letter - xdigit 0030 - 0039 | 0041 - 0046 | 0061 - 0066 - (0-9, a-f, A-F) + alnum Letter | Mark | Decimal_Number + alpha Letter | Mark + ascii 0000 - 007F + blank Space_Separator | 0009 + cntrl Control | Format | Unassigned | Private_Use | Surrogate + digit Decimal_Number + graph [[:^space:]] && ^Control && ^Unassigned && ^Surrogate + lower Lowercase_Letter + print [[:graph:]] | [[:space:]] + punct Connector_Punctuation | Dash_Punctuation | Close_Punctuation | + Final_Punctuation | Initial_Punctuation | Other_Punctuation | + Open_Punctuation + space Space_Separator | Line_Separator | Paragraph_Separator | + 0009 | 000A | 000B | 000C | 000D | 0085 + upper Uppercase_Letter + xdigit 0030 - 0039 | 0041 - 0046 | 0061 - 0066 + (0-9, a-f, A-F) + word Letter | Mark | Decimal_Number | Connector_Punctuation + 7. Extended groups @@ -200,9 +231,9 @@ syntax: ONIG_SYNTAX_RUBY (default) (?>subexp) atomic group don't backtrack in subexp. - (?<name>subexp) define named group - (All characters of the name must be a word character. - And first character must not be a digit or uppper case) + (?<name>subexp), (?'name'subexp) + define named group + (All characters of the name must be a word character.) Not only a name but a number is assigned like a captured group. @@ -215,7 +246,12 @@ syntax: ONIG_SYNTAX_RUBY (default) 8. Back reference \n back reference by group number (n >= 1) + \k<n> back reference by group number (n >= 1) + \k'n' back reference by group number (n >= 1) + \k<-n> back reference by relative group number (n >= 1) + \k'-n' back reference by relative group number (n >= 1) \k<name> back reference by group name + \k'name' back reference by group name In the back reference by the multiplex definition name, a subexp with a large number is referred to preferentially. @@ -227,10 +263,17 @@ syntax: ONIG_SYNTAX_RUBY (default) back reference with nest level - (This function is disabled in Ruby 1.9.) + level: 0, 1, 2, ... - \k<name+n> n: 0, 1, 2, ... - \k<name-n> n: 0, 1, 2, ... + \k<n+level> (n >= 1) + \k<n-level> (n >= 1) + \k'n+level' (n >= 1) + \k'n-level' (n >= 1) + + \k<name+level> + \k<name-level> + \k'name+level' + \k'name-level' Destinate relative nest level from back reference position. @@ -256,7 +299,11 @@ syntax: ONIG_SYNTAX_RUBY (default) 9. Subexp call ("Tanaka Akira special") \g<name> call by group name + \g'name' call by group name \g<n> call by group number (n >= 1) + \g'n' call by group number (n >= 1) + \g<-n> call by relative group number (n >= 1) + \g'-n' call by relative group number (n >= 1) * left-most recursive call is not allowed. ex. (?<name>a|\g<name>b) => error @@ -300,7 +347,6 @@ syntax: ONIG_SYNTAX_RUBY (default) ('g' and 'G' options are argued in ruby-dev ML) - These options are not implemented in Ruby level. ----------------------------- @@ -317,14 +363,13 @@ A-1. Syntax depend options A-2. Original extensions + hexadecimal digit char type \h, \H - + named group (?<name>...) + + named group (?<name>...), (?'name'...) + named backref \k<name> + subexp call \g<name>, \g<group-num> A-3. Lacked features compare with perl 5.8.0 - + [:word:] + \N{name} + \l,\u,\L,\U, \X, \C + (?{code}) @@ -334,20 +379,10 @@ A-3. Lacked features compare with perl 5.8.0 * \Q...\E This is effective on ONIG_SYNTAX_PERL and ONIG_SYNTAX_JAVA. - * \p{property}, \P{property} - This is effective on ONIG_SYNTAX_PERL and ONIG_SYNTAX_JAVA. - Alnum, Alpha, Blank, Cntrl, Digit, Graph, Lower, - Print, Punct, Space, Upper, XDigit, ASCII are supported. - - Prefix 'Is' of property name is allowed in ONIG_SYNTAX_PERL only. - ex. \p{IsXDigit}. - - Negation operator of property is supported in ONIG_SYNTAX_PERL only. - \p{^...}, \P{^...} +A-4. Differences with Japanized GNU regex(version 0.12) of Ruby 1.8 -A-4. Differences with Japanized GNU regex(version 0.12) of Ruby - + + add character property (\p{property}, \P{property}) + add hexadecimal digit char type (\h, \H) + add look-behind (?<=fixed-char-length-pattern), (?<!fixed-char-length-pattern) @@ -401,7 +436,9 @@ A-5. Disabled functions by default syntax A-6. Problems - + Invalid encoding byte sequence is not checked in UTF-8. + + Invalid encoding byte sequence is not checked. + + ex. UTF-8 * Invalid first byte is treated as a character. /./u =~ "\xa3" |