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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:38:56 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:38:56 +0000 |
commit | 6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321 (patch) | |
tree | f63ce19d57fad3ac4a15bc26dbfbfa2b834111b5 /lib/glob/glob_loop.c | |
parent | Initial commit. (diff) | |
download | bash-6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321.tar.xz bash-6c20c8ed2cb9ab69a1a57ccb2b9b79969a808321.zip |
Adding upstream version 5.2.15.upstream/5.2.15upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'lib/glob/glob_loop.c')
-rw-r--r-- | lib/glob/glob_loop.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/lib/glob/glob_loop.c b/lib/glob/glob_loop.c new file mode 100644 index 0000000..467e7ae --- /dev/null +++ b/lib/glob/glob_loop.c @@ -0,0 +1,84 @@ +/* Copyright (C) 1991-2020 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/>. +*/ + +static int INTERNAL_GLOB_PATTERN_P PARAMS((const GCHAR *)); + +/* Return nonzero if PATTERN has any special globbing chars in it. + Compiled twice, once each for single-byte and multibyte characters. */ +static int +INTERNAL_GLOB_PATTERN_P (pattern) + const GCHAR *pattern; +{ + register const GCHAR *p; + register GCHAR c; + int bopen, bsquote; + + p = pattern; + bopen = bsquote = 0; + + while ((c = *p++) != L('\0')) + switch (c) + { + case L('?'): + case L('*'): + return 1; + + case L('['): /* Only accept an open brace if there is a close */ + bopen++; /* brace to match it. Bracket expressions must be */ + continue; /* complete, according to Posix.2 */ + case L(']'): + if (bopen) + return 1; + continue; + + case L('+'): /* extended matching operators */ + case L('@'): + case L('!'): + if (*p == L('(')) /*) */ + return 1; + continue; + + case L('\\'): + /* Don't let the pattern end in a backslash (GMATCH returns no match + if the pattern ends in a backslash anyway), but otherwise note that + we have seen this, since the matching engine uses backslash as an + escape character and it can be removed. We return 2 later if we + have seen only backslash-escaped characters, so interested callers + know they can shortcut and just dequote the pathname. */ + if (*p != L('\0')) + { + p++; + bsquote = 1; + continue; + } + else /* (*p == L('\0')) */ + return 0; + } + +#if 0 + return bsquote ? 2 : 0; +#else + return (0); +#endif +} + +#undef INTERNAL_GLOB_PATTERN_P +#undef L +#undef INT +#undef CHAR +#undef GCHAR |