On Sun, May 30, 2010 at 03:35:12PM +0200, Hans Hagen wrote:
On 29-5-2010 6:58, Yury G. Kudryashov wrote:
Hi!
Unicode subscripts do not work (at least, in math):
\starttext $a₀₁₂₃₄₅₆₇₈₉₋₌₊$ \stoptext
prints only "a". The file char-def.lua contains block like this: [0x2080]={ category="no", description="SUBSCRIPT ZERO", direction="en", linebreak="al", specials={ "sub", 0x0030 }, unicodeslot=0x2080, },
Which file should handle this "specials={ "sub", 0x0030 }"?
P.S.: Superscript digits work. Probably, the font contains ¹ but not ₁.
in which case ... do you expect that glyph? or maybe one special for math? and does its size match the other superscripts that are not in the font? these super/sub things are historic ballast and not that useful
anyhow, attached a way to deal with it in your document, but you have to load it explicitly with \usemodule[mathcrap]
as soon as math-stream interpretation (as for instance in msword) is introduced in mkiv i might consider some collapsing mechanism
Those characters are not intended for use as real sub/superscripts, they are their for "round trip compatibility" (AKA the source of all Unicode discrepancies). -- Khaled Hosny Arabic localiser and member of Arabeyes.org team Free font developer