On Fri, Nov 29, 2002 at 04:20:12PM -0800, Nadim Shaikli wrote: > --- Olivier Chapuis <[EMAIL PROTECTED]> wrote: > > On Sun, Nov 24, 2002 at 12:49:35PM -0800, Nadim Shaikli wrote: > > > > > > I do have a possible idea of what is happening. Mikhael/Olivier, this > > > might make sense to you guys more than others :-) so let me know if you > > > want further detail off the list. I added a continuous assignment to a > > > Form-B glyph right above the first '#if 0' in the FBidiJoin.c file (say > > > to 0xFED3) and that failed. Which leads me to believe that unicode > > > conversion within fvwm is failing (this would also explain why the same > > > code doesn't fail outside fvwm). Does this make sense or ring any > > > bells ? In other words, a glyph value of 0x0641 is fine where as 0xFED3 > > > seems to trigger memory stomping - the difference there is how UTF-8 is > > > represnted and converted (are all UTF-8's within fvwm represented as > > > 4-bytes since that could be the max size ? The difference in the example > > > noted above it 2-bytes vs. 3-bytes). Am I barking up the wrong tree :-) ? > > > > Maybe not. fvwm makes some UTF-8 conversions (others are done by > > iconv). I am not sure that these conversions are safe in certain > > case. I should take a look. > > Olivier, 'FlocaleUtf8ToUnicodeStr2b' in libs/Flocale.c (lines 160-192) > looks rather suspect since it assumes all resultant unicode bytes will > occupy 2 bytes; am I reading that correctly ? I tried man'ing the > various Xlib functions and got overwhelmed. You might want to take a > peek at vim-6.1+ (vim.sf.net - note mbyte.c, function = utf_ptr2char). >
Yes, this function is suspect. It converts (char *)UTF-8 into (XChar2b *)USC-2. It is used under this situation only when the user uses an iso10646-1 font and does not use an UTF-8 locale. Olivier -- Visit the official FVWM web page at <URL:http://www.fvwm.org/>. To unsubscribe from the list, send "unsubscribe fvwm-workers" in the body of a message to [EMAIL PROTECTED] To report problems, send mail to [EMAIL PROTECTED]
