Mercurial > hg > octave-lyh > gnulib-hg
changeset 2219:dc2a214f6b3c
Lost version containing non-greedy changes from Emacs.
author | Gerd Moellmann <gerd@gnu.org> |
---|---|
date | Thu, 27 Jan 2000 11:40:40 +0000 |
parents | 2c091f08f7eb |
children | fc54f4397088 |
files | regex.h |
diffstat | 1 files changed, 13 insertions(+), 10 deletions(-) [+] |
line wrap: on
line diff
--- a/regex.h +++ b/regex.h @@ -38,9 +38,12 @@ add or remove a bit, only one other definition need change. */ typedef unsigned reg_syntax_t; +/* If this bit is set, then even *?, +? and ?? match greedily. */ +#define RE_ALL_GREEDY (1) + /* If this bit is not set, then \ inside a bracket expression is literal. If set, then such a \ quotes the following character. */ -#define RE_BACKSLASH_ESCAPE_IN_LISTS (1) +#define RE_BACKSLASH_ESCAPE_IN_LISTS (RE_ALL_GREEDY << 1) /* If this bit is not set, then + and ? are operators, and \+ and \? are literals. @@ -127,13 +130,13 @@ starting range point, the range is ignored. */ #define RE_NO_EMPTY_RANGES (RE_NO_BK_VBAR << 1) +/* If this bit is set, succeed as soon as we match the whole pattern, + without further backtracking. */ +#define RE_NO_POSIX_BACKTRACKING (RE_NO_EMPTY_RANGES << 1) + /* If this bit is set, then an unmatched ) is ordinary. If not set, then an unmatched ) is invalid. */ -#define RE_UNMATCHED_RIGHT_PAREN_ORD (RE_NO_EMPTY_RANGES << 1) - -/* If this bit is set, succeed as soon as we match the whole pattern, - without further backtracking. */ -#define RE_NO_POSIX_BACKTRACKING (RE_UNMATCHED_RIGHT_PAREN_ORD << 1) +#define RE_UNMATCHED_RIGHT_PAREN_ORD (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 @@ -158,7 +161,7 @@ (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_UNMATCHED_RIGHT_PAREN_ORD) + | RE_UNMATCHED_RIGHT_PAREN_ORD | RE_ALL_GREEDY) #define RE_SYNTAX_POSIX_AWK \ (RE_SYNTAX_POSIX_EXTENDED | RE_BACKSLASH_ESCAPE_IN_LISTS) @@ -166,13 +169,13 @@ #define RE_SYNTAX_GREP \ (RE_BK_PLUS_QM | RE_CHAR_CLASSES \ | RE_HAT_LISTS_NOT_NEWLINE | RE_INTERVALS \ - | RE_NEWLINE_ALT) + | RE_NEWLINE_ALT | RE_ALL_GREEDY) #define RE_SYNTAX_EGREP \ (RE_CHAR_CLASSES | RE_CONTEXT_INDEP_ANCHORS \ | RE_CONTEXT_INDEP_OPS | RE_HAT_LISTS_NOT_NEWLINE \ | RE_NEWLINE_ALT | RE_NO_BK_PARENS \ - | RE_NO_BK_VBAR) + | RE_NO_BK_VBAR | RE_ALL_GREEDY) #define RE_SYNTAX_POSIX_EGREP \ (RE_SYNTAX_EGREP | RE_INTERVALS | RE_NO_BK_BRACES) @@ -185,7 +188,7 @@ /* Syntax bits common to both basic and extended POSIX regex syntax. */ #define _RE_SYNTAX_POSIX_COMMON \ (RE_CHAR_CLASSES | RE_DOT_NEWLINE | RE_DOT_NOT_NULL \ - | RE_INTERVALS | RE_NO_EMPTY_RANGES) + | RE_INTERVALS | RE_NO_EMPTY_RANGES | RE_ALL_GREEDY) #define RE_SYNTAX_POSIX_BASIC \ (_RE_SYNTAX_POSIX_COMMON | RE_BK_PLUS_QM)