[XeTeX] Any progress on letterspacing in xetex?

[John Was]

Is there a list of XeTeX font primitives anywhere?  I keep 'discovering' new 
tricks in these e-mails!

Best


John

----- Original Message ----- 
From: "Will Robertson" <wspr81 at gmail.com>
To: "Unicode-based TeX for Mac OS X and other platforms" <xetex at tug.org>
Sent: Friday, June 15, 2007 8:53 AM
Subject: JunkEmail: Re: [XeTeX] Any progress on letterspacing in xetex?


> 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
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