\rightarrow missing?

Jesse Alama

30 Mar 2009 30 Mar '09

2:51 p.m.

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 Jesse -- Jesse Alama (alama@stanford.edu)

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Aditya Mahajan

30 Mar 30 Mar

7 p.m.

On Mon, 30 Mar 2009, Jesse Alama wrote:

...

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? Aditya

Hans Hagen

31 Mar 31 Mar

1:14 a.m.

Aditya Mahajan wrote:

...

On Mon, 30 Mar 2009, Jesse Alama wrote:

...
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 Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

Alan BRASLAU

9 Apr 9 Apr

2:21 p.m.

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:

...

Aditya Mahajan wrote:

...
On Mon, 30 Mar 2009, Jesse Alama wrote:

...
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

Hans

Aditya Mahajan

4:22 p.m.

On Thu, 9 Apr 2009, Alan BRASLAU wrote:

...

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

Hans, this has to do with the arrow function in math-vfu. Do you know why this is failing? Aditya

Jesse Alama

7 p.m.

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:

...

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:

...
Aditya Mahajan wrote:

...
On Mon, 30 Mar 2009, Jesse Alama wrote:

...
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

Hans

___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________

-- Jesse Alama (alama@stanford.edu)

Hans Hagen

10 Apr 10 Apr

1:19 a.m.

Jesse Alama wrote:

...

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:

...
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:

...
Aditya Mahajan wrote:

...
On Mon, 30 Mar 2009, Jesse Alama wrote:

...
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 ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

Alan BRASLAU

1:32 a.m.

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

...

Jesse Alama wrote:

...
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:

...
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:

...
Aditya Mahajan wrote:

...
On Mon, 30 Mar 2009, Jesse Alama wrote:

...
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

Aditya Mahajan

7:48 a.m.

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

Mohamed Bana

11:15 a.m.

excuse me if this has already been fixed. $ pdfinfo test1.pdf Creator: ConTeXt - 2009.03.23 10:57 Producer: LuaTeX-0.36.0 CreationDate: Fri Apr 10 18:10:34 2009 ModDate: ConTeXt - 2009.03.23 10:57 \implies doesn't work ! Undefined control sequence. <recently read> \implies l.11 $\implies $ ? *I* think \Rightarrow should be exchanged for \implies, as \implies generates a slightly longer arrow. $ pdfinfo test2.pdf Creator: ConTeXt - 2009.03.23 10:57 Producer: pdfTeX-1.40.9 CreationDate: Fri Apr 10 18:11:36 2009 ModDate: Fri Apr 10 00:00:00 2009 %%% the file %%% \starttext $\rightarrow$ $\to$ $\leftarrow$ $\leftrightarrow$ $\implies$ $\Rightarrow$ \stoptext Jesse Alama wrote:

...

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:

...
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:

...
Aditya Mahajan wrote:

...
On Mon, 30 Mar 2009, Jesse Alama wrote:

...
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

Hans

___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________

Aditya Mahajan

11:19 a.m.

On Fri, 10 Apr 2009, Mohamed Bana wrote:

...

excuse me if this has already been fixed.

$ pdfinfo test1.pdf

Creator: ConTeXt - 2009.03.23 10:57 Producer: LuaTeX-0.36.0 CreationDate: Fri Apr 10 18:10:34 2009 ModDate: ConTeXt - 2009.03.23 10:57

\implies doesn't work ! Undefined control sequence. <recently read> \implies l.11 $\implies $

Currently, \implies, \iff, and \impliedby are not mapped. We need a cleaner model to map symbols with spaces.

...

*I* think \Rightarrow should be exchanged for \implies, as \implies generates a slightly longer arrow.

\implies is usually defined as \;\Rightarrow\; so the size of the arrow should be the same. Aditya

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Aditya Mahajan
Alan BRASLAU
Hans Hagen
Jesse Alama
Mohamed Bana

\rightarrow missing?

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