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| author | Richard M. Stallman <rms@gnu.org> | 1995-05-15 23:30:28 +0000 |
|---|---|---|
| committer | Richard M. Stallman <rms@gnu.org> | 1995-05-15 23:30:28 +0000 |
| commit | 5cab1ade3104c104345684fc343ba090f05b204d (patch) | |
| tree | 95b210d04dedba991e9a56ae5251f47a7bd42a7b /src/regex.c | |
| parent | 4ffe7edf7603060261cf5c9be72270382bfd6a36 (diff) | |
| download | emacs-5cab1ade3104c104345684fc343ba090f05b204d.tar.gz | |
(re_compile_fastmap): Don't free stack if it's empty.
(re_match_failures): Reduce the larger value to 200000,
and use whenever if MATCH_MAY_ALLOCATE.
(MATCH_MAY_ALLOCATE): Don't consider REL_ALLOC when deciding
whether to undef this.
Diffstat (limited to 'src/regex.c')
| -rw-r--r-- | src/regex.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/src/regex.c b/src/regex.c index 3c0392a59a0..74fca1cbbae 100644 --- a/src/regex.c +++ b/src/regex.c @@ -960,8 +960,11 @@ static const char *re_error_msgid[] = #endif /* The match routines may not allocate if (1) they would do it with malloc - and (2) it's not safe for them to use malloc. */ -#if (defined (C_ALLOCA) || defined (REGEX_MALLOC)) && (defined (emacs) || defined (REL_ALLOC)) + and (2) it's not safe for them to use malloc. + Note that if REL_ALLOC is defined, matching would not use malloc for the + failure stack, but we would still use it for the register vectors; + so REL_ALLOC should not affect this. */ +#if (defined (C_ALLOCA) || defined (REGEX_MALLOC)) && defined (emacs) #undef MATCH_MAY_ALLOCATE #endif @@ -982,8 +985,8 @@ static const char *re_error_msgid[] = exactly that if always used MAX_FAILURE_SPACE each time we failed. This is a variable only so users of regex can assign to it; we never change it ourselves. */ -#ifdef REL_ALLOC -int re_max_failures = 20000000; +#if defined (MATCH_MAY_ALLOCATE) +int re_max_failures = 200000; #else int re_max_failures = 2000; #endif @@ -3138,7 +3141,8 @@ re_compile_fastmap (bufp) bufp->can_be_null |= path_can_be_null; done: - REGEX_FREE_STACK (fail_stack.stack); + if (!FAIL_STACK_EMPTY ()) + REGEX_FREE_STACK (fail_stack.stack); return 0; } /* re_compile_fastmap */ |