On Fri, 10 Apr 2009, Hans Hagen wrote:

in math-vfu, patch:

--~     main.characters[unicode] = { horiz_variants = t }
   main.characters[unicode].horiz_variants = t

and

[0x02190] = 0x20, -- leftarrow
[0x02192] = 0x21, -- rightarrow
--~ [0xFE190] = 0x20, -- leftarrow
--~ [0xFE192] = 0x21, -- rightarrow

and remake the format

luatex has native support for extensible arrows and since lm lacks them we need to construct them

How do we "extend" these arrows? Traditionally, amstex uses \x...arrow commands for extensible arrows, and \...arrow things are fixed.

Aditya
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