Re: [NTG-context] \rightarrow missing?

On Friday 10 April 2009 09:19:44 Hans Hagen wrote:

Jesse Alama wrote:

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I switched from MkIV to MkII today because of this gap in MkIV's math: I need to submit a dissertation that has \rightarrow's in it. Let's hope that this issue is resolved soon.

Jesse

Alan BRASLAU writes:

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Indeed, it seems to be broken in mkiv \rightarrow \to \leftarrow ...

However, \leftrightarrow works.

So, currently, it is hard to typeset limits under mkiv!

Alan

On Tuesday 31 March 2009 09:14:16 Hans Hagen wrote:

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Aditya Mahajan wrote:

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On Mon, 30 Mar 2009, Jesse Alama wrote:

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It seems that \rightarrow is missing. The command exists, in the sense that its use doesn't lead to an error, but it doesn't lead to anything in the output. Minimal example:

\starttext $\rightarrow$ \stoptext

Hans,

What does the new arrow function in math-vfu.lua supposed to do?

it will be used instead of the macro based one (as luatex has native support for such extenders now) but i had to wait till you fixed all the other arrows that you added someplace

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

Hans

Works. Fantastic! Alan