contrib/less/pattern.h

   1 /*
   2  * Copyright (C) 1984-2023  Mark Nudelman
   3  *
   4  * You may distribute under the terms of either the GNU General Public
   5  * License or the Less License, as specified in the README file.
   6  *
   7  * For more information, see the README file.
   8  */
   9
  10 #if HAVE_GNU_REGEX
  11 #define __USE_GNU 1
  12 #include <regex.h>
  13 #define PATTERN_TYPE             struct re_pattern_buffer *
  14 #define SET_NULL_PATTERN(name)   name = NULL
  15 #endif
  16
  17 /* ---- POSIX ---- */
  18 #if HAVE_POSIX_REGCOMP
  19 #include <regex.h>
  20 #ifdef REG_EXTENDED
  21 #define REGCOMP_FLAG             REG_EXTENDED
  22 #else
  23 #define REGCOMP_FLAG             0
  24 #endif
  25 #define PATTERN_TYPE             regex_t *
  26 #define SET_NULL_PATTERN(name)   name = NULL
  27 #define re_handles_caseless      TRUE
  28 #endif
  29
  30 /* ---- PCRE ---- */
  31 #if HAVE_PCRE
  32 #include <pcre.h>
  33 #define PATTERN_TYPE             pcre *
  34 #define SET_NULL_PATTERN(name)   name = NULL
  35 #define re_handles_caseless      TRUE
  36 #endif
  37
  38 /* ---- PCRE2 ---- */
  39 #if HAVE_PCRE2
  40 #define PCRE2_CODE_UNIT_WIDTH 8
  41 #include <pcre2.h>
  42 #define PATTERN_TYPE             pcre2_code *
  43 #define SET_NULL_PATTERN(name)   name = NULL
  44 #define re_handles_caseless      TRUE
  45 #endif
  46
  47 /* ---- RE_COMP  ---- */
  48 #if HAVE_RE_COMP
  49 char *re_comp(char*);
  50 int re_exec(char*);
  51 #define PATTERN_TYPE             int
  52 #define SET_NULL_PATTERN(name)   name = 0
  53 #endif
  54
  55 /* ---- REGCMP  ---- */
  56 #if HAVE_REGCMP
  57 char *regcmp(char*);
  58 char *regex(char**, char*);
  59 extern char *__loc1;
  60 #define PATTERN_TYPE             char **
  61 #define SET_NULL_PATTERN(name)   name = NULL
  62 #endif
  63
  64 /* ---- REGCOMP  ---- */
  65 #if HAVE_V8_REGCOMP
  66 #include "regexp.h"
  67 extern int reg_show_error;
  68 #define PATTERN_TYPE             struct regexp *
  69 #define SET_NULL_PATTERN(name)   name = NULL
  70 #endif
  71
  72 /* ---- NONE  ---- */
  73 #if NO_REGEX
  74 #define PATTERN_TYPE             void *
  75 #define SET_NULL_PATTERN(name)
  76 #endif
  77
  78 #ifndef re_handles_caseless
  79 #define re_handles_caseless      FALSE
  80 #endif