Re: "Quantum" Fonts -- A (possibly crazy) idea from Trager
On Feb 10, 2008 12:47 AM, Theppitak Karoonboonyanan <thep <at> linux.thai.net> wrote:
> I find this "quantum font" proposal an intersting idea. And I'd like
> to share my opinion from a non-Latin language user's point of view.
> On Feb 9, 2008 7:51 PM, Ben Laenen <benlaenen <at> gmail.com> wrote:
> > On Friday 08 February 2008, Ed Trager wrote:
> > > But I do not think this would have to be entirely font specific : one
> > > could create a de facto or real standard stating, for example that
> > > ARABIC LETTERS SHEEN and SAAD in terminal form take 2 character cells
> > > in all "quantum" fonts.
> > My initial thought is that that wouldn't be sufficient. You need to have
> > tables for all possible substitutions as well. Like when in Arabic lam
> > + alif becomes a ligature, probably taking the width of 1 quantum, or
> > when seen (س) is put in its initial or medial form, it only needs 1
> > quantum instead of 2 for its isolated or final form. And I think it's
> > much more difficult for Indic languages for example.
Yes, we would need to associate a quantum width with every glyph in the font.
One thing I forgot to mention before but it is fairly obvious is that
some glyphs have a quantum width of 0 : combining diacritical marks,
THAI/LAO SARA I, II, U, UU and similar over- & under- vowels in other
Indic- and Indic-derived scripts.