2011/8/22 Doug Ewell <d...@ewellic.org>: > Depending on how you count, there are already two to four fonts that > support Ewellic in the PUA. There are probably many more that support > Tengwar or Cirth or Klingon.
First, these fonts can work fine with the default LTR directionality. So there's no need for additional data for them. Second, even if they were RTL, the needed info for each of these fonts, embedded in them would be extremely small, reduced to just specifying the range of RTL characters they need to contain. So I don't see that as a problem. Those fonts do exist and are used exactly because there was no problem for rendering them with texts encoded in logical order (the same as the visual order). It's still strange that we can have several fonts for esoteric fonts that have been used effectively by very few people, when there are centuries of traditions, and many interested users (but spread in very small communities worldwide) that cannot use computer technologies to render their favorite scripts, or that want to teach them, or make books and other publications to expose them, as an important humane cultural heritage, even if this was only to translate them or transcribe them in a more modern script.