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/* gmisc.c -- miscellaneous pattern matching utility functions for Bash.
Copyright (C) 2010-2020 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne-Again SHell.
Bash is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Bash is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Bash. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "bashtypes.h"
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#include "bashansi.h"
#include "shmbutil.h"
#include "chartypes.h"
#include "stdc.h"
#ifndef FNM_CASEFOLD
# include "strmatch.h"
#endif
#include "glob.h"
/* Make sure these names continue to agree with what's in smatch.c */
extern char *glob_patscan PARAMS((char *, char *, int));
/* Compile `gm_loop.c' for single-byte characters. */
#define CHAR char
#define INT int
#define L(CS) CS
#define EXTGLOB_PATTERN_P extglob_pattern_p
#define MATCH_PATTERN_CHAR match_pattern_char
#define MATCHLEN umatchlen
#define FOLD(c) ((flags & FNM_CASEFOLD) \
? TOLOWER ((unsigned char)c) \
: ((unsigned char)c))
#ifndef LPAREN
#define LPAREN '('
#define RPAREN ')'
#endif
#include "gm_loop.c"
/* Compile `gm_loop.c' again for multibyte characters. */
#if HANDLE_MULTIBYTE
#define CHAR wchar_t
#define INT wint_t
#define L(CS) L##CS
#define EXTGLOB_PATTERN_P wextglob_pattern_p
#define MATCH_PATTERN_CHAR match_pattern_wchar
#define MATCHLEN wmatchlen
#define FOLD(c) ((flags & FNM_CASEFOLD) && iswupper (c) ? towlower (c) : (c))
#define LPAREN L'('
#define RPAREN L')'
#include "gm_loop.c"
#endif /* HANDLE_MULTIBYTE */
#if defined (EXTENDED_GLOB)
/* Skip characters in PAT and return the final occurrence of DIRSEP. This
is only called when extended_glob is set, so we have to skip over extglob
patterns x(...) */
char *
glob_dirscan (pat, dirsep)
char *pat;
int dirsep;
{
char *p, *d, *pe, *se;
d = pe = se = 0;
for (p = pat; p && *p; p++)
{
if (extglob_pattern_p (p))
{
if (se == 0)
se = p + strlen (p) - 1;
pe = glob_patscan (p + 2, se, 0);
if (pe == 0)
continue;
else if (*pe == 0)
break;
p = pe - 1; /* will do increment above */
continue;
}
if (*p == dirsep)
d = p;
}
return d;
}
#endif /* EXTENDED_GLOB */
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