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.
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 Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
Hans Hagen wrote:
On 29-5-2010 6:58, Yury G. Kudryashov wrote:
Hi!
Unicode subscripts do not work (at least, in math):
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] OK, I shall replace all unicode sub/sup scripts with _ and ^.
Is it possible to print some warnings/errors for such crappy characters? As a user, I don't know in advance which characters are crappy.
On 30-5-2010 4:52, Yury G. Kudryashov wrote:
Hans Hagen wrote:
On 29-5-2010 6:58, Yury G. Kudryashov wrote:
Hi!
Unicode subscripts do not work (at least, in math):
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] OK, I shall replace all unicode sub/sup scripts with _ and ^.
Is it possible to print some warnings/errors for such crappy characters? As a user, I don't know in advance which characters are crappy.
there are \checkcharactersinfont \removemissingcharacters (long time not tested) for sure we can add some checking (for which i need to flag those code points in the char-def file) ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
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
On 30-5-2010 5:01, Khaled Hosny wrote:
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).
indeed, which is why using them is on user's own risk Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
participants (3)
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Hans Hagen -
Khaled Hosny -
Yury G. Kudryashov