active characters in mkiv (and mkii)

active characters in mkiv (and mkii)

[Thomas A. Schmitz]

Hi all,

I would like to make the exclamation mark active within my Greek  
environment; it should remain a normal letter outside of these  
commands and environments. (Why? Exclamation marks aren't used in  
Greek, and in mkii, I had mapped it to the sublinear dot which is used  
for epigraphical and papyrological texts.)

In pdf(e)tex, Hans wrote this macro for me:

\long\def\rescanwithsetup#1#2%
    {{\directsetup{#1}\scantokens{#2\ignorespaces}}}

but I'm not sure how to have a similar thing for mkiv (and ! is  
special anyway, so I'm running into trouble here...). Any pointers? Or  
is this a bad idea, and I should look for other solutions?

Thanks

Thomas
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Re: active characters in mkiv (and mkii)

[Hans Hagen]

Thomas A. Schmitz wrote:
> Hi all,
> 
> I would like to make the exclamation mark active within my Greek  
> environment; it should remain a normal letter outside of these  
> commands and environments. (Why? Exclamation marks aren't used in  
> Greek, and in mkii, I had mapped it to the sublinear dot which is used  
> for epigraphical and papyrological texts.)
> 
> In pdf(e)tex, Hans wrote this macro for me:
> 
> \long\def\rescanwithsetup#1#2%
>     {{\directsetup{#1}\scantokens{#2\ignorespaces}}}
> 
> but I'm not sure how to have a similar thing for mkiv (and ! is  
> special anyway, so I'm running into trouble here...). Any pointers? Or  
> is this a bad idea, and I should look for other solutions?

forget about the past, think about what kind of functionality you want

for instance,

"we need a language dependent feature that remaps characters"

so, what are the specs; maybe other languages need similar things

(there is already something available which we can easily extend)

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
-----------------------------------------------------------------
___________________________________________________________________________________
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
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archive  : https://foundry.supelec.fr/projects/contextrev/
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___________________________________________________________________________________

Re: active characters in mkiv (and mkii)

[Thomas A. Schmitz]

On Jul 7, 2008, at 1:20 PM, Hans Hagen wrote:

> forget about the past, think about what kind of functionality you want
>
> for instance,
>
> "we need a language dependent feature that remaps characters"
>
> so, what are the specs; maybe other languages need similar things
>
> (there is already something available which we can easily extend)

OK, acknowledged. However, this is a special case because:

- it is not a language feature, it is just something for a special  
sort of ancient Greek texts (the subdot accent doesn't exist in Greek);

- the character is available in just a few fonts, so my idea was to  
really write a macro which will specifically fetch the glyph from a  
specific font.

So for the time being, the specs are (for my module)

~ => inactive (already done in the module)
| => inactive (already done in the module)
! => active, map to Unicode character 0323 in a font that has this  
character

Thanks Hans!

All best

Thomas
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___________________________________________________________________________________

Re: active characters in mkiv (and mkii)

[Hans Hagen]

Thomas A. Schmitz wrote:
> On Jul 7, 2008, at 1:20 PM, Hans Hagen wrote:
> 
>> forget about the past, think about what kind of functionality you want
>>
>> for instance,
>>
>> "we need a language dependent feature that remaps characters"
>>
>> so, what are the specs; maybe other languages need similar things
>>
>> (there is already something available which we can easily extend)
> 
> OK, acknowledged. However, this is a special case because:
> 
> - it is not a language feature, it is just something for a special  
> sort of ancient Greek texts (the subdot accent doesn't exist in Greek);
> 
> - the character is available in just a few fonts, so my idea was to  
> really write a macro which will specifically fetch the glyph from a  
> specific font.
> 
> So for the time being, the specs are (for my module)
> 
> ~ => inactive (already done in the module)
> | => inactive (already done in the module)
> ! => active, map to Unicode character 0323 in a font that has this  
> character

in that case, how abotu a fallback font ...

% \definefontfallback [whatever] [Slanted]     [0x0060-0x007F] [force=yes]
% \definefontfallback [whatever] [Bold] 
[0x0080:0x00FF,0x00A0:0x00AF] [rscale=2.0]
% \definefontfallback [whatever] [BoldSlanted] ["00C0-"00C7] 
[check=yes,force=yes]
% \definefontfallback [whatever] [Mono]        [latinextendeda] 
[force=yes] % 0x0100:0x017F
% \definefontfallback [whatever] [Mono]        [latin extended a] 
[force=yes] % 0x0100:0x017F
%
% \definefontsynonym[SerifPlus][Serif][fallbacks=whatever]
%
% \definefont[MySerif][SerifPlus at 10pt]
%
% \startcolumns[n=6]
%     \MySerif
%     \dostepwiserecurse {0} {65000} {1} {
%         \iffontchar\font\recurselevel
%             {\tttf\uchexnumbers\recurselevel:} \char\recurselevel\par
%         \fi
%     }
% \stopcolumns


so, you define a fallbackfont for your greek font

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
-----------------------------------------------------------------
___________________________________________________________________________________
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
___________________________________________________________________________________

Re: active characters in mkiv (and mkii)

[Thomas A. Schmitz]

On Jul 7, 2008, at 2:01 PM, Hans Hagen wrote:

> so, you define a fallbackfont for your greek font
>
> Hans
>

That looks good; I'll have a go at it (I guess the fallback can be  
enabled on the typescript level, right?). However, I'm still left  
wondering if it doesn't make sense to make the ! active and map it to  
the sublinear dot - much easier to input via the keyboard.

Thanks

Thomas
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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
___________________________________________________________________________________

Re: active characters in mkiv (and mkii)

[Hans Hagen]

Thomas A. Schmitz wrote:
> On Jul 7, 2008, at 2:01 PM, Hans Hagen wrote:
> 
>> so, you define a fallbackfont for your greek font
>>
>> Hans
>>
> 
> That looks good; I'll have a go at it (I guess the fallback can be  
> enabled on the typescript level, right?). However, I'm still left  
> wondering if it doesn't make sense to make the ! active and map it to  
> the sublinear dot - much easier to input via the keyboard.

no, active chars are a pain ... because they need to adapt to all kind 
of situations then, i'm glad that i got rid of the active : cum suis

of course we can add a new core-spa feature that remaps chars (kind of 
like french spacing)

-----------------------------------------------------------------
                                           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
-----------------------------------------------------------------
___________________________________________________________________________________
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
___________________________________________________________________________________

Re: active characters in mkiv (and mkii)

[Thomas A. Schmitz]

On Jul 7, 2008, at 4:17 PM, Hans Hagen wrote:

> no, active chars are a pain ... because they need to adapt to all kind
> of situations then, i'm glad that i got rid of the active : cum suis
>
> of course we can add a new core-spa feature that remaps chars (kind of
> like french spacing)

OK, OK, you win :-) I'll try and see if I can cook up some remap +  
fallback solution which I can implement. For the remapping stuff, I'll  
go through fea-files or what would be the cleanest way?

Thomas
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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
___________________________________________________________________________________