diff options
Diffstat (limited to 'lib/glob/glob_loop.c')
-rw-r--r-- | lib/glob/glob_loop.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/lib/glob/glob_loop.c b/lib/glob/glob_loop.c new file mode 100644 index 0000000..253cac9 --- /dev/null +++ b/lib/glob/glob_loop.c @@ -0,0 +1,67 @@ +/* Copyright (C) 1991-2005 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 2, 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; see the file COPYING. If not, write to the Free Software + Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ + +static int INTERNAL_GLOB_PATTERN_P __P((const CHAR *)); + +/* 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 CHAR *pattern; +{ + register const CHAR *p; + register CHAR c; + int bopen; + + p = pattern; + bopen = 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('\\'): + if (*p++ == L('\0')) + return 0; + } + + return 0; +} + +#undef INTERNAL_GLOB_PATTERN_P +#undef L +#undef INT +#undef CHAR |