util/regex.c

   1 /* Extended regular expression matching and search library.
   2    Copyright (C) 2002 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02110-1301 USA.  */
  20
  21 #ifdef _LIBC
  22 /* We have to keep the namespace clean.  */
  23 #  define regfree(preg) __regfree (preg)
  24 #  define regexec(pr, st, nm, pm, ef) __regexec (pr, st, nm, pm, ef)
  25 #  define regcomp(preg, pattern, cflags) __regcomp (preg, pattern, cflags)
  26 #  define regerror(errcode, preg, errbuf, errbuf_size) \
  27         __regerror(errcode, preg, errbuf, errbuf_size)
  28 #  define re_set_registers(bu, re, nu, st, en) \
  29         __re_set_registers (bu, re, nu, st, en)
  30 #  define re_match_2(bufp, string1, size1, string2, size2, pos, regs, stop) \
  31         __re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop)
  32 #  define re_match(bufp, string, size, pos, regs) \
  33         __re_match (bufp, string, size, pos, regs)
  34 #  define re_search(bufp, string, size, startpos, range, regs) \
  35         __re_search (bufp, string, size, startpos, range, regs)
  36 #  define re_compile_pattern(pattern, length, bufp) \
  37         __re_compile_pattern (pattern, length, bufp)
  38 #  define re_set_syntax(syntax) __re_set_syntax (syntax)
  39 #  define re_search_2(bufp, st1, s1, st2, s2, startpos, range, regs, stop) \
  40         __re_search_2 (bufp, st1, s1, st2, s2, startpos, range, regs, stop)
  41 #  define re_compile_fastmap(bufp) __re_compile_fastmap (bufp)
  42 #endif
  43
  44 #if _LIBC || __GNUC__ >= 3
  45 # define BE(expr, val) __builtin_expect (expr, val)
  46 #else
  47 # define BE(expr, val) (expr)
  48 # define inline
  49 #endif
  50
  51 #include "regcomp.c"
  52 #include "regexec.c"
  53 #include "regex_internal.c"
  54
  55 /* Binary backward compatibility.  */
  56 #if _LIBC
  57 # include <shlib-compat.h>
  58 # if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3)
  59 link_warning (re_max_failures, "the 're_max_failures' variable is obsolete and will go away.")
  60 int re_max_failures = 2000;
  61 # endif
  62 #endif