thodg/libgit2/src/posix_regex.h

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• Hash : 9ceafb57
  Author :
  Date : 2019-01-12T22:55:31
  

  regexec: use pcre as our fallback/builtin regex
  
  Use PCRE 8.42 as the builtin regex implementation, using its POSIX
  compatibility layer.  PCRE uses ASCII by default and the users locale
  will not influence its behavior, so its `regcomp` implementation is
  similar to `regcomp_l` with a C locale.
  

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• src/posix_regex.h

• /*
   * Copyright (C) the libgit2 contributors. All rights reserved.
   *
   * This file is part of libgit2, distributed under the GNU GPL v2 with
   * a Linking Exception. For full terms see the included COPYING file.
   */
  #ifndef INCLUDE_posix_regex_h__
  #define INCLUDE_posix_regex_h__
  
  #include "common.h"
  
  /*
   * Regular expressions: if the operating system has p_regcomp_l,
   * use it so that we can override the locale environment variable.
   * Otherwise, use our bundled PCRE implementation.
   */
  
  #ifdef GIT_USE_REGCOMP_L
  # include <regex.h>
  # include <xlocale.h>
  
  #define P_REG_EXTENDED REG_EXTENDED
  #define P_REG_ICASE REG_ICASE
  #define P_REG_NOMATCH REG_NOMATCH
  
  #define p_regex_t regex_t
  #define p_regmatch_t regmatch_t
  
  GIT_INLINE(int) p_regcomp(p_regex_t *preg, const char *pattern, int cflags)
  {
  	return regcomp_l(preg, pattern, cflags, (locale_t) 0);
  }
  
  #define p_regerror regerror
  #define p_regexec regexec
  #define p_regfree regfree
  
  #else
  # include "pcreposix.h"
  
  # define P_REG_EXTENDED PCRE_REG_EXTENDED
  # define P_REG_ICASE PCRE_REG_ICASE
  # define P_REG_NOMATCH PCRE_REG_NOMATCH
  
  # define p_regex_t pcre_regex_t
  # define p_regmatch_t pcre_regmatch_t
  # define p_regcomp pcre_regcomp
  # define p_regerror pcre_regerror
  # define p_regexec pcre_regexec
  # define p_regfree pcre_regfree
  #endif
  
  #endif
  

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