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- Log -----------------------------------------------------------------
http://git.savannah.gnu.org/cgit/grep.git/commit/?id=69d06a2c3c7cdcd296da4fe92d7ed7256c4d0395
commit 69d06a2c3c7cdcd296da4fe92d7ed7256c4d0395
Author: Paolo Bonzini <[email protected]>
Date: Mon Apr 30 08:59:01 2012 +0200
dfa: small fixes to single-byte range computation
* src/dfa.c (parse_bracket_exp): Do not call regexec with an invalid
subject. Move declarations before all statements.
diff --git a/src/dfa.c b/src/dfa.c
index eefc817..a78e760 100644
--- a/src/dfa.c
+++ b/src/dfa.c
@@ -1104,6 +1104,11 @@ parse_bracket_exp (void)
}
else
{
+ /* Defer to the system regex library about the meaning
+ of range expressions. */
+ regex_t re;
+ char pattern[6] = { '[', 0, '-', 0, ']', 0 };
+ char subject[2] = { 0, 0 };
c1 = c;
if (case_fold)
{
@@ -1111,17 +1116,16 @@ parse_bracket_exp (void)
c2 = tolower (c2);
}
- /* Defer to the system regex library about the meaning
- of range expressions. */
- regex_t re;
- char pattern[6] = { '[', c1, '-', c2, ']', 0 };
- char subject[2] = { 0, 0 };
+ pattern[1] = c1;
+ pattern[3] = c2;
regcomp (&re, pattern, REG_NOSUB);
for (c = 0; c < NOTCHAR; ++c)
{
+ if ((case_fold && isupper (c)) ||
+ (MB_CUR_MAX > 1 && btowc (c) == WEOF))
+ continue;
subject[0] = c;
- if (!(case_fold && isupper (c))
- && regexec (&re, subject, 0, NULL, 0) != REG_NOMATCH)
+ if (regexec (&re, subject, 0, NULL, 0) != REG_NOMATCH)
setbit_case_fold_c (c, ccl);
}
regfree (&re);
-----------------------------------------------------------------------
Summary of changes:
src/dfa.c | 18 +++++++++++-------
1 files changed, 11 insertions(+), 7 deletions(-)
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