diff options
Diffstat (limited to 'regex.h')
| -rw-r--r-- | regex.h | 26 |
1 files changed, 18 insertions, 8 deletions
@@ -1,7 +1,7 @@ /* Definitions for data structures and routines for the regular expression library, version 0.12. - Copyright (C) 1985, 89, 90, 91, 92, 93, 95 Free Software Foundation, Inc. + Copyright (C) 1985, 89, 90, 91, 92, 93, 95, 96 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -12,10 +12,11 @@ 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 this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA */ + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + USA. */ #ifndef __REGEXP_LIBRARY_H__ #define __REGEXP_LIBRARY_H__ @@ -145,6 +146,14 @@ typedef unsigned long reg_syntax_t; without further backtracking. */ #define RE_NO_POSIX_BACKTRACKING (RE_NO_GNU_OPS << 1) +/* If this bit is set, turn on internal regex debugging. + If not set, and debugging was on, turn it off. + This only works if regex.c is compiled -DDEBUG. + We define this bit always, so that all that's needed to turn on + debugging is to recompile regex.c; the calling code can always have + this bit set, and it won't affect anything in the normal case. */ +#define RE_DEBUG (RE_NO_POSIX_BACKTRACKING << 1) + /* This global variable defines the particular regexp syntax to use (for some interfaces). When a regexp is compiled, the syntax used is stored in the pattern buffer, so changing this does not affect @@ -160,16 +169,17 @@ extern reg_syntax_t re_syntax_options; #define RE_SYNTAX_AWK \ (RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DOT_NOT_NULL \ | RE_NO_BK_PARENS | RE_NO_BK_REFS \ - | RE_NO_BK_VBAR | RE_NO_EMPTY_RANGES \ - | RE_DOT_NEWLINE \ + | RE_NO_BK_VBAR | RE_NO_EMPTY_RANGES \ + | RE_DOT_NEWLINE | RE_CONTEXT_INDEP_ANCHORS \ | RE_UNMATCHED_RIGHT_PAREN_ORD | RE_NO_GNU_OPS) #define RE_SYNTAX_GNU_AWK \ - ((RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS) \ - & ~(RE_DOT_NOT_NULL|RE_INTERVALS)) + ((RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS | RE_DEBUG) \ + & ~(RE_DOT_NOT_NULL|RE_INTERVALS|RE_CONTEXT_INDEP_OPS)) #define RE_SYNTAX_POSIX_AWK \ - (RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS| RE_NO_GNU_OPS) + (RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS \ + | RE_INTERVALS | RE_NO_GNU_OPS) #define RE_SYNTAX_GREP \ (RE_BK_PLUS_QM | RE_CHAR_CLASSES \ |