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authorUlrich Drepper <drepper@redhat.com>2004-11-18 23:57:34 +0000
committerUlrich Drepper <drepper@redhat.com>2004-11-18 23:57:34 +0000
commitc06a6956a40a878fdbe319e4688196e7c990bf7a (patch)
treefee7b24f6276363e8b1f0e977231b413f9eb2fbf /posix/regex.h
parent1b1d36792e9d9c4ad9a67ad8bfc1a3be8f2104c1 (diff)
downloadglibc-c06a6956a40a878fdbe319e4688196e7c990bf7a.tar.gz
[BZ #544]
Update. 2004-11-18 Jakub Jelinek <jakub@redhat.com> [BZ #544] * posix/regex.h (RE_NO_SUB): New define. * posix/regex_internal.h (OP_DELETED_SUBEXP): New. (re_dfa_t): Add subexp_map. * posix/regcomp.c (struct subexp_optimize): New type. (optimize_subexps): New routine. (re_compile_internal): Call it. (re_compile_pattern): Set preg->no_sub to 1 if RE_NO_SUB. (free_dfa_content): Free subexp_map. (calc_inveclosure, calc_eclosure): Skip OP_DELETED_SUBEXP nodes. * posix/regexec.c (re_search_internal): If subexp_map is not NULL, duplicate registers as needed. * posix/Makefile: Add rules to build and run tst-regex2. * posix/tst-regex2.c: New test. * posix/rxspencer/tests: Fix last two tests (\0 -> \1). Add some new tests for nested subexpressions.
Diffstat (limited to 'posix/regex.h')
-rw-r--r--posix/regex.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/posix/regex.h b/posix/regex.h
index 4279dbcc5b..b2d9a62fec 100644
--- a/posix/regex.h
+++ b/posix/regex.h
@@ -179,6 +179,10 @@ typedef unsigned long int reg_syntax_t;
immediately after an alternation or begin-group operator. */
#define RE_CONTEXT_INVALID_DUP (RE_CARET_ANCHORS_HERE << 1)
+/* If this bit is set, then no_sub will be set to 1 during
+ re_compile_pattern. */
+#define RE_NO_SUB (RE_CONTEXT_INVALID_DUP << 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