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Diffstat (limited to 'lib/glob/gmisc.c')
-rw-r--r-- | lib/glob/gmisc.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/lib/glob/gmisc.c b/lib/glob/gmisc.c new file mode 100644 index 0000000..f3d74ce --- /dev/null +++ b/lib/glob/gmisc.c @@ -0,0 +1,108 @@ +/* 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 */ |