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regexp: fix non greedy quantizers with zero length matches

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This commit is contained in:
Fabrice Bellard
2024-05-30 16:41:37 +02:00
parent d86aaf0b8f
commit 36911f0d3a
2 changed files with 8 additions and 8 deletions
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14
libregexp.c
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@@ -1488,15 +1488,13 @@ static int re_parse_term(REParseState *s, BOOL is_backward_dir)
if (dbuf_error(&s->byte_code))
goto out_of_memory;
/* the spec tells that if there is no advance when
running the atom after the first quant_min times,
then there is no match. We remove this test when we
are sure the atom always advances the position. */
add_zero_advance_check = re_need_check_advance(s->byte_code.buf + last_atom_start,
s->byte_code.size - last_atom_start);
} else {
add_zero_advance_check = FALSE;
}
/* the spec tells that if there is no advance when
running the atom after the first quant_min times,
then there is no match. We remove this test when we
are sure the atom always advances the position. */
add_zero_advance_check = re_need_check_advance(s->byte_code.buf + last_atom_start,
s->byte_code.size - last_atom_start);
{
int len, pos;