On Tuesday, July 2, 2002, at 11:39 AM, John Cowan wrote:
> >> 1) If you map directly from multiple characters to a single glyph, you >> don' >> t have to include glyphs in your font for all the "pieces" if they're >> never supposed to appear by themselves. As an extreme example, if I >> implemented astral character support via ligating surrogate pairs, I'd >> need to include glyphs for the unpaired surrogates. > > More precisely, you need to have glyph *indexes* that are never mapped > to glyphs. The actual outlines themselves don't need to exist, AFAIK. > True. I tend to avoid that, because if something goes wrong and the system attempts to actually *display* one of these virtual glyphs, disaster would ensue. (Dave Opstad and I have had long debates on the safety of doing this.) ========== John H. Jenkins [EMAIL PROTECTED] [EMAIL PROTECTED] http://homepage.mac.com/jenkins/
