regular expression library
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README.md

Build Status Code Quality: Cpp Total Alerts

Oniguruma

https://github.com/kkos/oniguruma

Oniguruma is a modern and flexible regular expressions library. It encompasses features from different regular expression implementations that traditionally exist in different languages.

Character encoding can be specified per regular expression object.

Supported character encodings:

ASCII, UTF-8, UTF-16BE, UTF-16LE, UTF-32BE, UTF-32LE, EUC-JP, EUC-TW, EUC-KR, EUC-CN, Shift_JIS, Big5, GB18030, KOI8-R, CP1251, ISO-8859-1, ISO-8859-2, ISO-8859-3, ISO-8859-4, ISO-8859-5, ISO-8859-6, ISO-8859-7, ISO-8859-8, ISO-8859-9, ISO-8859-10, ISO-8859-11, ISO-8859-13, ISO-8859-14, ISO-8859-15, ISO-8859-16

  • GB18030: contributed by KUBO Takehiro
  • CP1251: contributed by Byte

New feature of version 6.9.0

  • Update Unicode version 11.0.0
  • NEW: add Emoji properties

New feature of version 6.8.2

  • Fix: #80 UChar in header causes issue
  • NEW API: onig_set_callout_user_data_of_match_param() (* omission in 6.8.0)
  • add doc/CALLOUTS.API and doc/CALLOUTS.API.ja

New feature of version 6.8.1

  • Update shared library version to 5.0.0 for API incompatible changes from 6.7.1

New feature of version 6.8.0

  • Retry-limit-in-match function enabled by default
  • NEW: configure option --enable-posix-api=no (* enabled by default)
  • NEW API: onig_search_with_param(), onig_match_with_param()
  • NEW: Callouts of contents (?{...contents...}) (?{...}[tag][X<>]) (?{{...}})
  • NEW: Callouts of name (*name) (*name[tag]{args...})
  • NEW: Builtin callouts (*FAIL) (*MISMATCH) (*ERROR{n}) (*COUNT) (*MAX{n}) etc..
  • Examples of Callouts program: callout.c, count.c, echo.c

New feature of version 6.7.1

  • NEW: Mechanism of retry-limit-in-match (* disabled by default)

New feature of version 6.7.0

  • NEW: hexadecimal codepoint \uHHHH
  • NEW: add ONIG_SYNTAX_ONIGURUMA (== ONIG_SYNTAX_DEFAULT)
  • Disabled \N and \O on ONIG_SYNTAX_RUBY
  • Reduced size of object file

New feature of version 6.6.0

  • NEW: ASCII only mode options for character type/property (?WDSP)
  • NEW: Extended Grapheme Cluster boundary \y, \Y (*original)
  • NEW: Extended Grapheme Cluster \X
  • Range-clear (Absent-clear) operator restores previous range in retractions.

New feature of version 6.5.0

  • NEW: \K (keep)
  • NEW: \R (general newline) \N (no newline)
  • NEW: \O (true anychar)
  • NEW: if-then-else (?(...)...|...)
  • NEW: Backreference validity checker (?(xxx)) (*original)
  • NEW: Absent repeater (?~absent) [is equal to (?~|absent|\O*)]
  • NEW: Absent expression (?~|absent|expr) (*original)
  • NEW: Absent stopper (?~|absent) (*original)

New feature of version 6.4.0

  • Fix fatal problem of endless repeat on Windows
  • NEW: call zero (call the total regexp) \g<0>
  • NEW: relative backref/call by positive number \k<+n>, \g<+n>

New feature of version 6.3.0

  • NEW: octal codepoint \o{.....}
  • Fixed CVE-2017-9224
  • Fixed CVE-2017-9225
  • Fixed CVE-2017-9226
  • Fixed CVE-2017-9227
  • Fixed CVE-2017-9228
  • Fixed CVE-2017-9229

New feature of version 6.1.2

  • allow word bound, word begin and word end in look-behind.
  • NEW option: ONIG_OPTION_CHECK_VALIDITY_OF_STRING

New feature of version 6.1

  • improved doc/RE
  • NEW API: onig_scan()

New feature of version 6.0

  • Update Unicode 8.0 Property/Case-folding
  • NEW API: onig_unicode_define_user_property()

License

BSD license.

Install

Case 1: Unix and Cygwin platform

  1. autoreconf -vfi (* case: configure script is not found.)

  2. ./configure

  3. make

  4. make install

  • uninstall

    make uninstall

  • configuration check

    onig-config --cflags onig-config --libs onig-config --prefix onig-config --exec-prefix

Case 2: Windows 64/32bit platform (Visual Studio)

Execute make_win.bat

  onig_s.lib:  static link library
  onig.dll:    dynamic link library
  • test (ASCII/Shift_JIS)

    1. cd src
    2. copy ..\windows\testc.c .
    3. nmake -f Makefile.windows ctest

(I have checked by Visual Studio Community 2015)

Regular Expressions

See doc/RE or doc/RE.ja for Japanese.

Usage

Include oniguruma.h in your program. (Oniguruma API) See doc/API for Oniguruma API.

If you want to disable UChar type (== unsigned char) definition in oniguruma.h, define ONIG_ESCAPE_UCHAR_COLLISION and then include oniguruma.h.

If you want to disable regex_t type definition in oniguruma.h, define ONIG_ESCAPE_REGEX_T_COLLISION and then include oniguruma.h.

Example of the compiling/linking command line in Unix or Cygwin, (prefix == /usr/local case)

cc sample.c -L/usr/local/lib -lonig

If you want to use static link library(onig_s.lib) in Win32, add option -DONIG_EXTERN=extern to C compiler.

Sample Programs

File Description
sample/simple.c example of the minimum (Oniguruma API)
sample/names.c example of the named group callback.
sample/encode.c example of some encodings.
sample/listcap.c example of the capture history.
sample/posix.c POSIX API sample.
sample/scan.c example of using onig_scan().
sample/sql.c example of the variable meta characters.
sample/user_property.c example of user defined Unicode property.
sample/callout.c example of callouts.

Test Programs

File Description
sample/syntax.c Perl, Java and ASIS syntax test.
sample/crnl.c --enable-crnl-as-line-terminator test

Source Files

File Description
oniguruma.h Oniguruma API header file (public)
onig-config.in configuration check program template
regenc.h character encodings framework header file
regint.h internal definitions
regparse.h internal definitions for regparse.c and regcomp.c
regcomp.c compiling and optimization functions
regenc.c character encodings framework
regerror.c error message function
regext.c extended API functions (deluxe version API)
regexec.c search and match functions
regparse.c parsing functions.
regsyntax.c pattern syntax functions and built-in syntax definitions
regtrav.c capture history tree data traverse functions
regversion.c version info function
st.h hash table functions header file
st.c hash table functions
oniggnu.h GNU regex API header file (public)
reggnu.c GNU regex API functions
onigposix.h POSIX API header file (public)
regposerr.c POSIX error message function
regposix.c POSIX API functions
mktable.c character type table generator
ascii.c ASCII encoding
euc_jp.c EUC-JP encoding
euc_tw.c EUC-TW encoding
euc_kr.c EUC-KR, EUC-CN encoding
sjis.c Shift_JIS encoding
big5.c Big5 encoding
gb18030.c GB18030 encoding
koi8.c KOI8 encoding
koi8_r.c KOI8-R encoding
cp1251.c CP1251 encoding
iso8859_1.c ISO-8859-1 (Latin-1)
iso8859_2.c ISO-8859-2 (Latin-2)
iso8859_3.c ISO-8859-3 (Latin-3)
iso8859_4.c ISO-8859-4 (Latin-4)
iso8859_5.c ISO-8859-5 (Cyrillic)
iso8859_6.c ISO-8859-6 (Arabic)
iso8859_7.c ISO-8859-7 (Greek)
iso8859_8.c ISO-8859-8 (Hebrew)
iso8859_9.c ISO-8859-9 (Latin-5 or Turkish)
iso8859_10.c ISO-8859-10 (Latin-6 or Nordic)
iso8859_11.c ISO-8859-11 (Thai)
iso8859_13.c ISO-8859-13 (Latin-7 or Baltic Rim)
iso8859_14.c ISO-8859-14 (Latin-8 or Celtic)
iso8859_15.c ISO-8859-15 (Latin-9 or West European with Euro)
iso8859_16.c ISO-8859-16 (Latin-10)
utf8.c UTF-8 encoding
utf16_be.c UTF-16BE encoding
utf16_le.c UTF-16LE encoding
utf32_be.c UTF-32BE encoding
utf32_le.c UTF-32LE encoding
unicode.c common codes of Unicode encoding
unicode_fold_data.c Unicode folding data
windows/testc.c Test program for Windows (VC++)