On Nov 24, 2007 2:04 PM, Bram Moolenaar <[EMAIL PROTECTED]> wrote:
> Thanks for locating this problem. For the fix I think it's simplest to
> use utf_ptr2len(). It checks for the NUL character in the same way as
> mb_ptr2char():
>
> *** ../vim-7.1.159/src/regexp.c Sat Aug 11 13:57:31 2007
> --- src/regexp.c Sat Nov 24 13:23:53 2007
> ***************
> *** 2770,2776 ****
> {
> #ifdef FEAT_MBYTE
> if (enc_utf8)
> ! prevchr_len += utf_char2len(mb_ptr2char(regparse + prevchr_len));
> else if (has_mbyte)
> prevchr_len += (*mb_ptr2len)(regparse + prevchr_len);
> else
> --- 2770,2777 ----
> {
> #ifdef FEAT_MBYTE
> if (enc_utf8)
> ! /* exclude composing chars that mb_ptr2len does include */
> ! prevchr_len += utf_ptr2len(regparse + prevchr_len);
> else if (has_mbyte)
> prevchr_len += (*mb_ptr2len)(regparse + prevchr_len);
> else
>
> Not sure if that fixes all situations, perhaps you can check that?
I confirm that your solution appears to fix the problem
I described. I have checked several regex with invalid
or incomplete utf-8 sequences and no errors were detected
after applying your patch.
Thanks
-- Dominique
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