- From: John Hudson <tiro@tiro.com>
- Date: Tue, 13 Oct 2009 00:29:04 -0700
- To: Ben Weiner <ben@readingtype.org.uk>
- CC: www-font <www-font@w3.org>, John Daggett <jdaggett@mozilla.com>
Ben Weiner wrote: > Would joined/substituted glyphs fail in a similar way if, say, an Arabic > font was split up into subsets? Our discussion is very Latin-centric ;-) Yes. OpenType Layout is processed in glyph runs, and a change of font breaks a run. As John D says, splitting fonts into multiple files is fraught with peril. It can be done cleverly for simple scripts that don't need complex layout, e.g. by parsing the kern data and avoiding putting glyphs with a kerning relationship into separate fonts, but then the whole value of font splitting becomes dependent on how extensively hinted a font is. On the whole, I think font splitting is a bit of a non-starter, at least as a general purpose mechanism. John H.
Received on Tuesday, 13 October 2009 07:29:40 UTC