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Member "gawk-5.1.0/support/regex.c" (6 Feb 2020, 3181 Bytes) of package /linux/misc/gawk-5.1.0.tar.xz:


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    1 /* Extended regular expression matching and search library.
    2    Copyright (C) 2002-2020 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, see
   18    <https://www.gnu.org/licenses/>.  */
   19 
   20 #define __STDC_WANT_IEC_60559_BFP_EXT__
   21 
   22 #ifndef _LIBC
   23 # include <libc-config.h>
   24 
   25 # if __GNUC_PREREQ (4, 6)
   26 #  pragma GCC diagnostic ignored "-Wsuggest-attribute=pure"
   27 # endif
   28 # if __GNUC_PREREQ (4, 3)
   29 #  pragma GCC diagnostic ignored "-Wold-style-definition"
   30 #  pragma GCC diagnostic ignored "-Wtype-limits"
   31 # endif
   32 #endif
   33 
   34 /* Make sure no one compiles this code with a C++ compiler.  */
   35 #if defined __cplusplus && defined _LIBC
   36 # error "This is C code, use a C compiler"
   37 #endif
   38 
   39 #ifdef _LIBC
   40 /* We have to keep the namespace clean.  */
   41 # define regfree(preg) __regfree (preg)
   42 # define regexec(pr, st, nm, pm, ef) __regexec (pr, st, nm, pm, ef)
   43 # define regcomp(preg, pattern, cflags) __regcomp (preg, pattern, cflags)
   44 # define regerror(errcode, preg, errbuf, errbuf_size) \
   45     __regerror(errcode, preg, errbuf, errbuf_size)
   46 # define re_set_registers(bu, re, nu, st, en) \
   47     __re_set_registers (bu, re, nu, st, en)
   48 # define re_match_2(bufp, string1, size1, string2, size2, pos, regs, stop) \
   49     __re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop)
   50 # define re_match(bufp, string, size, pos, regs) \
   51     __re_match (bufp, string, size, pos, regs)
   52 # define re_search(bufp, string, size, startpos, range, regs) \
   53     __re_search (bufp, string, size, startpos, range, regs)
   54 # define re_compile_pattern(pattern, length, bufp) \
   55     __re_compile_pattern (pattern, length, bufp)
   56 # define re_set_syntax(syntax) __re_set_syntax (syntax)
   57 # define re_search_2(bufp, st1, s1, st2, s2, startpos, range, regs, stop) \
   58     __re_search_2 (bufp, st1, s1, st2, s2, startpos, range, regs, stop)
   59 # define re_compile_fastmap(bufp) __re_compile_fastmap (bufp)
   60 
   61 # include "../locale/localeinfo.h"
   62 #endif
   63 
   64 /* On some systems, limits.h sets RE_DUP_MAX to a lower value than
   65    GNU regex allows.  Include it before <regex.h>, which correctly
   66    #undefs RE_DUP_MAX and sets it to the right value.  */
   67 #include <limits.h>
   68 
   69 #include <regex.h>
   70 #include "regex_internal.h"
   71 
   72 #include "regex_internal.c"
   73 #include "regcomp.c"
   74 #include "regexec.c"
   75 
   76 /* Binary backward compatibility.  */
   77 #if _LIBC
   78 # include <shlib-compat.h>
   79 # if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3)
   80 link_warning (re_max_failures, "the 're_max_failures' variable is obsolete and will go away.")
   81 int re_max_failures = 2000;
   82 # endif
   83 #endif