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* posix/regex_internal.c (re_string_skip_chars): If no character has

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been converted at all, set *last_wc to WEOF.  If mbrtowc failed, set wc
	to the byte which couldn't be converted.
	(re_string_reconstruct): Don't clear valid_raw_len before calling
	re_string_skip_chars.  If wc is WEOF after re_string_skip_chars, set
	tip_context using re_string_context_at.
	* posix/Makefile: Add rules to build and run bug-regex25 test.
	* posix/bug-regex25.c: New test.
This commit is contained in:
Ulrich Drepper
2006-06-04 04:59:36 +00:00
parent fdc02996d4
commit 33e63e7993
4 changed files with 87 additions and 10 deletions
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26
posix/regex_internal.c
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@ -482,7 +482,7 @@ re_string_skip_chars (re_string_t *pstr, int new_raw_idx, wint_t *last_wc)
mbstate_t prev_st;
int rawbuf_idx;
size_t mbclen;
wchar_t wc = 0;
wchar_t wc = WEOF;
/* Skip the characters which are not necessary to check. */
for (rawbuf_idx = pstr->raw_mbs_idx + pstr->valid_raw_len;
@ -495,7 +495,11 @@ re_string_skip_chars (re_string_t *pstr, int new_raw_idx, wint_t *last_wc)
remain_len, &pstr->cur_state);
if (BE (mbclen == (size_t) -2 || mbclen == (size_t) -1 || mbclen == 0, 0))
{
/* We treat these cases as a singlebyte character. */
/* We treat these cases as a single byte character. */
if (mbclen == 0 || remain_len == 0)
wc = L'\0';
else
wc = *(unsigned char *) (pstr->raw_mbs + rawbuf_idx);
mbclen = 1;
pstr->cur_state = prev_st;
}
@ -618,7 +622,6 @@ re_string_reconstruct (re_string_t *pstr, int idx, int eflags)
}
#endif
pstr->valid_len = 0;
pstr->valid_raw_len = 0;
#ifdef RE_ENABLE_I18N
if (pstr->mb_cur_max > 1)
{
@ -681,6 +684,16 @@ re_string_reconstruct (re_string_t *pstr, int idx, int eflags)
if (wc == WEOF)
pstr->valid_len = re_string_skip_chars (pstr, idx, &wc) - idx;
if (wc == WEOF)
pstr->tip_context
= re_string_context_at (pstr, pstr->valid_raw_len - 1, eflags);
else
pstr->tip_context = ((BE (pstr->word_ops_used != 0, 0)
&& IS_WIDE_WORD_CHAR (wc))
? CONTEXT_WORD
: ((IS_WIDE_NEWLINE (wc)
&& pstr->newline_anchor)
? CONTEXT_NEWLINE : 0));
if (BE (pstr->valid_len, 0))
{
for (wcs_idx = 0; wcs_idx < pstr->valid_len; ++wcs_idx)
@ -689,17 +702,12 @@ re_string_reconstruct (re_string_t *pstr, int idx, int eflags)
memset (pstr->mbs, 255, pstr->valid_len);
}
pstr->valid_raw_len = pstr->valid_len;
pstr->tip_context = ((BE (pstr->word_ops_used != 0, 0)
&& IS_WIDE_WORD_CHAR (wc))
? CONTEXT_WORD
: ((IS_WIDE_NEWLINE (wc)
&& pstr->newline_anchor)
? CONTEXT_NEWLINE : 0));
}
else
#endif /* RE_ENABLE_I18N */
{
int c = pstr->raw_mbs[pstr->raw_mbs_idx + offset - 1];
pstr->valid_raw_len = 0;
if (pstr->trans)
c = pstr->trans[c];
pstr->tip_context = (bitset_contain (pstr->word_char, c)