[XeTeX] inconsistant kerning

[Jonathan Kew]

On 27 Sep 2006, at 2:07 pm, Malte Rosenau wrote:
>
> I don't know if this is related,

No, it's unrelated -- but also a bug.

> but I've also noticed a strange case of kerning
> in the german abbreviation 'Vf.'
>
> \font\1="Minion Pro" at 12pt
> \1 Vf. Va
> \bye
>
> Gives me too much negative kerning in 'Vf.', while the 'Va' is  
> perfectly OK.
> Other application on my Mac behave as expected, so I think we can  
> rule out a
> problem with the font. Is my XeTeX broken?

Yours and everyone else's. :-(

I'll look into it.

Meanwhile, you can sidestep the bug by loading the font with the /AAT  
option (or [Renderer=AAT] with fontspec.sty), to use ATSUI rather  
than ICU-based rendering. (Non-MacOSX users don't have that  
workaround, though.)

JK