[XeTeX] Any progress on letterspacing in xetex?

[Will Robertson]

Hi Paul,

On 6/15/07, Paul Howson <paul at tdgq.com.au> wrote:
> Last year there was some discussion about adding a letterspacing
> (tracking) facility to xetex. Has anything further been done towards
> that?

Yes, this feature was added relatively soon after that discussion. If
you're using LaTeX (i.e., fontspec), see the LetterSpace feature. For
example,
  \fontspec[LetterSpace=1.0]{Helvetica}
will add tracking between each letter with an additional 1% of the font size.

The XeTeX font primitive that corresponds to this is
  \font\x="Helvetica:letterspace=1.0" at 10pt\x

Will