* Horizontal space in math subscript generated by Lua
@ 2010-12-14 11:25 Procházka Lukáš Ing. - Pontex s. r. o.
2010-12-15 12:06 ` Hans Hagen
0 siblings, 1 reply; 4+ messages in thread
From: Procházka Lukáš Ing. - Pontex s. r. o. @ 2010-12-14 11:25 UTC (permalink / raw)
To: ConTeXt
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Hello,
I encountered a strange effect. Let's have a code that generates the same math, firstly by Ctx and secondly by Lua:
---
\starttext
\startformula
M_{t,WnT} = 1000
\stopformula
\startluacode
context.startformula()
context("M_{t,WnT} = 1000")
context.stopformula()
\stopluacode
\stoptext
---
You can see the result - the space between "W" and "n" in lower index is smaller when generated (natively) by Ctx than that in math generated by Lua. (The latter case may affect a bit "disturbingly" to the reader.)
It seems also that space between (subscript) "T" and "=" varies.
So why these differences? How to avoid the extra-space when Lua generates math subscript?
Best regards,
Lukas
--
Ing. Lukáš Procházka [mailto:LPr@pontex.cz]
Pontex s. r. o. [mailto:pontex@pontex.cz] [http://www.pontex.cz]
Bezová 1658
147 14 Praha 4
Tel: +420 244 062 238
Fax: +420 244 461 038
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\starttext
\startformula
M_{t,WnT} = 1000
\stopformula
\startluacode
context.startformula()
context("M_{t,WnT} = 1000")
context.stopformula()
\stopluacode
\stoptext
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* Re: Horizontal space in math subscript generated by Lua
2010-12-14 11:25 Horizontal space in math subscript generated by Lua Procházka Lukáš Ing. - Pontex s. r. o.
@ 2010-12-15 12:06 ` Hans Hagen
2010-12-15 17:11 ` Procházka Lukáš Ing. - Pontex s. r. o.
0 siblings, 1 reply; 4+ messages in thread
From: Hans Hagen @ 2010-12-15 12:06 UTC (permalink / raw)
To: mailing list for ConTeXt users
On 14-12-2010 12:25, Procházka Lukáš Ing. - Pontex s. r. o. wrote:
> Hello,
>
> I encountered a strange effect. Let's have a code that generates the
> same math, firstly by Ctx and secondly by Lua:
>
> ---
> \starttext
> \startformula
> M_{t,WnT} = 1000
> \stopformula
>
> \startluacode
> context.startformula()
> context("M_{t,WnT} = 1000")
> context.stopformula()
> \stopluacode
> \stoptext
> ---
>
> You can see the result - the space between "W" and "n" in lower index is
> smaller when generated (natively) by Ctx than that in math generated by
> Lua. (The latter case may affect a bit "disturbingly" to the reader.)
>
> It seems also that space between (subscript) "T" and "=" varies.
>
> So why these differences? How to avoid the extra-space when Lua
> generates math subscript?
actually, the luacode was doing the right thing as there is a
protect/unprotect mismatch (will be fixed); putting this at the top of
you file works:
\catcodetable\ctxcatcodes
I have no clue yet where the space comes from (that's taco's speciality)
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
-----------------------------------------------------------------
___________________________________________________________________________________
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 : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Horizontal space in math subscript generated by Lua
2010-12-15 12:06 ` Hans Hagen
@ 2010-12-15 17:11 ` Procházka Lukáš Ing. - Pontex s. r. o.
2010-12-18 21:08 ` Hans Hagen
0 siblings, 1 reply; 4+ messages in thread
From: Procházka Lukáš Ing. - Pontex s. r. o. @ 2010-12-15 17:11 UTC (permalink / raw)
To: ConTeXt
Hello,
On Wed, 15 Dec 2010 13:06:42 +0100, Hans Hagen <pragma@wxs.nl> wrote:
> actually, the luacode was doing the right thing as there is a protect/unprotect mismatch (will be fixed); puttingthis at the top of you file works:
>
> \catcodetable\ctxcatcodes
thank you, Hans.
This makes both solutions (Ctx generated and Lua generated) equal - [wider] spacing is the same.
Just my point of view - the previous native Ctx result (= narrower spacing in subscript when mixing upper and lower case letters) - seemed to me a bit prettier; wouldn't be better to keep the "old" Ctx look (= result without \catcodetable\ctxcatcodes) and to drive Lua to give the same result?
Best regards,
Lukas
--
Ing. Lukáš Procházka [mailto:LPr@pontex.cz]
Pontex s. r. o. [mailto:pontex@pontex.cz] [http://www.pontex.cz]
Bezová 1658
147 14 Praha 4
Tel: +420 244 062 238
Fax: +420 244 461 038
___________________________________________________________________________________
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 : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Horizontal space in math subscript generated by Lua
2010-12-15 17:11 ` Procházka Lukáš Ing. - Pontex s. r. o.
@ 2010-12-18 21:08 ` Hans Hagen
0 siblings, 0 replies; 4+ messages in thread
From: Hans Hagen @ 2010-12-18 21:08 UTC (permalink / raw)
To: mailing list for ConTeXt users
On 15-12-2010 6:11, Procházka Lukáš Ing. - Pontex s. r. o. wrote:
> Hello,
>
> On Wed, 15 Dec 2010 13:06:42 +0100, Hans Hagen <pragma@wxs.nl> wrote:
>
>> actually, the luacode was doing the right thing as there is a
>> protect/unprotect mismatch (will be fixed); puttingthis at the top of
>> you file works:
>>
>> \catcodetable\ctxcatcodes
>
> thank you, Hans.
>
> This makes both solutions (Ctx generated and Lua generated) equal -
> [wider] spacing is the same.
>
> Just my point of view - the previous native Ctx result (= narrower
> spacing in subscript when mixing upper and lower case letters) - seemed
> to me a bit prettier; wouldn't be better to keep the "old" Ctx look (=
> result without \catcodetable\ctxcatcodes) and to drive Lua to give the
> same result?
no, the question is why the spacing in math is there, the catcode regime
should indeed be ctxcatcodes ... more something for aditya to figure out
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
-----------------------------------------------------------------
___________________________________________________________________________________
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 : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
^ permalink raw reply [flat|nested] 4+ messages in thread
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2010-12-14 11:25 Horizontal space in math subscript generated by Lua Procházka Lukáš Ing. - Pontex s. r. o.
2010-12-15 12:06 ` Hans Hagen
2010-12-15 17:11 ` Procházka Lukáš Ing. - Pontex s. r. o.
2010-12-18 21:08 ` Hans Hagen
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