bug in fontinst 1.801: duplicated kernings (was: ae fonts Q)

[Lars Engebretsen]

On 28 Sep, Vladimir Volovich wrote:
> "LE" == Lars Engebretsen writes:
> 
>  >> Could you please answer why you commented out kerning stuff for ff
>  >> ligatures (and some more) in the aelatin.mtx?
>  >> 
>  >> %\setleftkerning{ffi}{f}{1000} %\setleftkerning{ffl}{f}{1000}
>  >> %\setleftrightkerning{ff}{f}{1000} %\setleftkerning{fi}{f}{1000}
>  >> %\setleftkerning{fl}{f}{1000}
>  >> 
>  >> we're preparing a similar package for cyrillic encodings, so this
>  >> is important to me.
> 
>  LE> I can't remember why, and when I removed the % signs, the fonts
>  LE> still seem to be generated OK, so I would call the lack of
>  LE> kerning a bug.
> 
> Hmm... i've just checked, and found that when those lines are
> uncommented, fontinst generated duplicated kernings, e.g.:

When I think more about this, I guess that this is because there
already is kerning information for the ff-ligature in the original tfm
file. Therefore, it is not nescessary to use the \set*kerning stuff for
those ligature.

Or maybe I'm wrong?

	/Lars


-- 
Lars Engebretsen, M.Sc., <enge@nada.kth.se>