[XeTeX] letter spacing

Will Robertson wspr81 at gmail.com
Mon Jun 5 00:38:55 CEST 2006

On 04/06/2006, at 22:04 , Adam Twardoch wrote:

> For some reason, I always assumed that this would be a trivial  
> thing to
> do in TeX. I guess it's one of the myths of "excellent typographic
> control offered by TeX" that actually turns out to be false :/


Perhaps Knuth thought it trivial to create a new font metric file to  
incorporate spaced caps. I agree a tracking method in XeTeX would be  

   V\addkern-0.1em A

In both cases, the natural kerning would be respected and adjusted by  
the specified amount. Contrast this to the present behaviour

   V\kern-0.1em A

which kerns the letters exactly by the specified amount.
This makes fine-tuning slightly more difficult.
\addkern could be implemented, slightly more roundabout, using macros  
such as
by measuring boxes.

I can see the disadvantage to allowing tracking (he who would steal  
sheep and all), but  on the whole it does seem strange that the  
capability is lacking.


More information about the XeTeX mailing list