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[BZ 697]

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* posix/regexec.c (prune_impossible_nodes): Handle sifted_states[0]
	being NULL also if there are no backreferences.
	* posix/rxspencer/tests: Add testcases.
This commit is contained in:
Ulrich Drepper 2009-01-08 00:47:30 +00:00
parent bdb56bacd5
commit 76c7f2cd8a
3 changed files with 17 additions and 1 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2009-01-05 Paolo Bonzini <bonzini@gnu.org>
[BZ 697]
* posix/regexec.c (prune_impossible_nodes): Handle sifted_states[0]
being NULL also if there are no backreferences.
* posix/rxspencer/tests: Add testcases.
2009-01-04 Paolo Bonzini <bonzini@gnu.org> 2009-01-04 Paolo Bonzini <bonzini@gnu.org>
[BZ 9697] [BZ 9697]

7
posix/regexec.c
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@ -1,5 +1,5 @@
/* Extended regular expression matching and search library. /* Extended regular expression matching and search library.
Copyright (C) 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc. Copyright (C) 2002, 2003, 2004, 2005, 2007, 2009 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>. Contributed by Isamu Hasegawa <isamu@yamato.ibm.com>.
@ -1004,6 +1004,11 @@ prune_impossible_nodes (mctx)
re_node_set_free (&sctx.limits); re_node_set_free (&sctx.limits);
if (BE (ret != REG_NOERROR, 0)) if (BE (ret != REG_NOERROR, 0))
goto free_return; goto free_return;
if (sifted_states[0] == NULL)
{
ret = REG_NOMATCH;
goto free_return;
}
} }
re_free (mctx->state_log); re_free (mctx->state_log);
mctx->state_log = sifted_states; mctx->state_log = sifted_states;

4
posix/rxspencer/tests
View File

@ -536,3 +536,7 @@ a.*\b & abT ab
\B & aSbTc \B & aSbTc
\B & SaT @SaT \B & SaT @SaT
\B & aSTSb @TSb \B & aSTSb @TSb
o$($|.) - oN
o$($|.) - op
o$($|.) - o o