[Freetype] Re: [Devel] how does freetype handle combining character for unicode

[David Turner]

Hello,

Ziying Sherwin wrote:
> We installed php 4.2.2 with freetype 1.3.1 on our solaris 2.8 machine.  We 
> are using function imagettftext to convert UTF8 string to image file for
> Internet display. However, it seems that this function does not handle the 
> combining characters properly.  For instance, the sequence of unicode 
> characters U+0061(a) and U+0308 (combining diacritics) is display as two 
> characters: a and a square indicating not displayable. The correct result should
> be a character identical to U+00E4.
>
> We are wondering where the normalization is handled in this case, freetype
> library or inside imagettftext php function? Is it a bug in freetype library?
> If not, how can we fix it? 
FreeType doesn't handle normalization or even glyph substitutions like ligatures
directly. This must be implemented on top of it. You should probably look inside
imagettftext then...

Regards,

- David Turner
- The FreeType Project  (www.freetype.org)


> Thanks,
>
> Ziying Sherwin
>
> P.S. I am not on the mailing list, please send your response to 
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