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2002-12-16  Jakub Jelinek  <jakub@redhat.com>
            Paolo Bonzini  <bonzini@gnu.org>

	* posix/regexec.c (group_nodes_into_DFAstates): Never produce
	dests_ch items that are empty.
This commit is contained in:
Ulrich Drepper 2003-12-16 18:58:47 +00:00
parent c0d5034ed1
commit 457beec8d7
2 changed files with 17 additions and 5 deletions
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ChangeLog
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@ -1,3 +1,9 @@
2002-12-16 Jakub Jelinek <jakub@redhat.com>
Paolo Bonzini <bonzini@gnu.org>
* posix/regexec.c (group_nodes_into_DFAstates): Never produce
dests_ch items that are empty.
2003-12-14 Paolo Bonzini <bonzini@gnu.org>
* posix/regexec.c (check_arrival): Remove duplicate test.

16
posix/regexec.c
View File

@ -3402,30 +3402,36 @@ group_nodes_into_DFAstates (preg, state, dests_node, dests_ch)
if (constraint & NEXT_WORD_CONSTRAINT)
{
unsigned int any_set = 0;
#ifdef RE_ENABLE_I18N
if (dfa->mb_cur_max > 1)
for (j = 0; j < BITSET_UINTS; ++j)
accepts[j] &= (dfa->word_char[j] | ~dfa->sb_char[j]);
any_set |= (accepts[j] &= (dfa->word_char[j] | ~dfa->sb_char[j]));
else
#endif
for (j = 0; j < BITSET_UINTS; ++j)
accepts[j] &= dfa->word_char[j];
any_set |= (accepts[j] &= dfa->word_char[j]);
if (!any_set)
continue;
}
if (constraint & NEXT_NOTWORD_CONSTRAINT)
{
unsigned int any_set = 0;
#ifdef RE_ENABLE_I18N
if (dfa->mb_cur_max > 1)
for (j = 0; j < BITSET_UINTS; ++j)
accepts[j] &= ~(dfa->word_char[j] & dfa->sb_char[j]);
any_set |= (accepts[j] &= ~(dfa->word_char[j] & dfa->sb_char[j]));
else
#endif
for (j = 0; j < BITSET_UINTS; ++j)
accepts[j] &= ~dfa->word_char[j];
any_set |= (accepts[j] &= ~dfa->word_char[j]);
if (!any_set)
continue;
}
}
/* Then divide `accepts' into DFA states, or create a new
state. */
state. Above, we make sure that accepts is not empty. */
for (j = 0; j < ndests; ++j)
{
bitset intersec; /* Intersection sets, see below. */