[XeTeX] letter spacing

[Ralf Stubner]

Ricard Roca <ricardroca at gmail.com> writes:

> But with uppercase or smallcaps it is often needed for good typography, 
> specially with serif fonts and titling.

At least for uppercase, that's what the 'cpsp' is meant for. For small
caps the situation is more difficult. Should they be spaced for single
words or for longer text? The latter sould need more spacing than the
former. One could (miss)use the 'cpsp' feature for that, too. 

> It's the same with slanted fonts, for the ones that doesn't include that 
> shape.

Don't try to fake a slanted shape, if the font designer hasn't included
one. Slanted shapes have to be designed separately.

cheerio
ralf