Re: switching off ligatures?

[Behdad Esfahbod <behdad behdad org>]

On Fri, 2006-10-20 at 18:19 +0200, Han-Wen Nienhuys wrote:
> Behdad Esfahbod schreef:
> > On Fri, 2006-10-20 at 09:40 -0400, Han-Wen Nienhuys wrote:
> >> Hello,
> >>
> >> how do you get Pango to switch off using ligatures in latin language?
> >>
> >> I have a user that gets weird ligatures when using a particular TTF 
> >> windows font in lilypond. (The ft in "heeft" looks like a @ or similar)
> >>
> >> I suspect that this is a non-opentype TTF font (without GSUB table?). I 
> >> think the easiest fix is to add a switch to disable ligatures. How do I 
> >> do that? Set a different PangoLanguage for the context?
> > 
> > We don't do any ligature substitution (or any substitution FWIW) with
> > non-OpenType fonts.  If the font is broken, fix that.  No Pango feature
> > here.
> 
> Thanks. I've got my hands on the TTF file.
> Apparently, the GSUB tables contains the correct entry for the ft ligature.
> 
> The ligature itself doesn't have the correct unicode name. I presume 
> this is not a problem when displaying on screen, but my PS handling code 
> isn't prepared for the case that glyphs come from outside of the Unicode 
> range.
> 
> Werner, how I should I display this glyph in PostScript ?

In Firefox+Pango that I'm working on, we use FT_Get_Glyph_Name() and if
that fails, fall back to /idx<glyphid>

behdad


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behdad
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