[Devel] GB18030 problem

[Leon Ho]

Hi,

We are implementing a new charset, zh_CN.GB18030, into several 
applications (like XFree86, qt, input method). Now we have come up one 
weird problem when displaying the characters using a ttf font, with xfs 
& freetype lib. Generally if we display a set of characters that within 
the GB18030 character area, all the glpyhs will show up correctly. 
However if we include any characters that outside of the GB18030 area, 
the application's glyph will disapear.

ie.
0x8139EE38 hasn't got glyph in the font
0x8139EE39 has glyph in the font
0x8139EF30 has glyph in the font

If only we display 0x8139EE39, 0x8139EF30, there are no problem. However 
if we include 0x8139EE38, all the glyphs in the application will be 
erased with blanks.

Anyone saw this simliar problem before? Any feedback would be appreciated.

Regards,
Leon
--
Leon Ho