Using dsrom with MKIV

Using dsrom with MKIV

[Aditya Mahajan]

Hi,

The dsrom math font only works partially with MKIV, and I do not 
understand what is happening. Consider the following example from 
http://wiki.contextgarden.net/Doublestroke (which I wrote, after 
suggestions on the mailing list). One needs the fonts, which are part of 
TL and are also available at 
http://ctan.org/tex-archive/fonts/doublestroke/

%=======================================================================
\loadmapfile[dstroke.map]

\starttypescript [math] [modern,computer-modern,latin-modern,ams] [size]
   \definebodyfont [17.3pt,14.4pt,12pt][mm]
                   [mb=dsrom12 sa 1]
   \definebodyfont [11pt,10pt,9pt] [mm]
                   [mb=dsrom10 sa 1]
   \definebodyfont [8pt,7pt,6pt,5pt,4pt] [mm]
                   [mb=dsrom8 sa 1]
\stoptypescript

\definetypeface [modern] [mm] [math] [modern] [ams] [encoding=texnansi]
\setupbodyfont[reset,modern,10pt]

\definefamilysynonym [default] [doublestroke]   [mb]

\def\dstroke {\fam\purefamily  {doublestroke}}

\def\doublestroke#1{{\dstroke#1}}

\starttext
$\doublestroke{E} \doublestroke{1}$
\stoptext
%=======================================================================


This works correctly in MKII (Both E and 1 are shown in dsrom font). 
However, in MKIV the 1 is shown in LM Roman rather than dsrom.

Is this a bug in context font handling, or a bug in the typescript?

I am using: context version: 2008.12.01 10:25
This is LuaTeX, Version snapshot-0.30.3-2008112812


Aditya


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Re: Using dsrom with MKIV

[Wolfgang Schuster]

Am 24.12.2008 um 19:47 schrieb Aditya Mahajan:

> Hi,
>
> The dsrom math font only works partially with MKIV, and I do not  
> understand what is happening. Consider the following example from http://wiki.contextgarden.net/Doublestroke 
>  (which I wrote, after suggestions on the mailing list). One needs  
> the fonts, which are part of TL and are also available at http://ctan.org/tex-archive/fonts/doublestroke/
>
> This works correctly in MKII (Both E and 1 are shown in dsrom font).  
> However, in MKIV the 1 is shown in LM Roman rather than dsrom.
>
> Is this a bug in context font handling, or a bug in the typescript?

I think in the font handling because

\loadmapfile[dstroke.map]

\starttypescript [math] [modern,computer-modern,latin-modern,ams] [size]
   \definebodyfont [17.3pt,14.4pt,12pt] [mm]
     [mr=dsrom12 sa 1]
   \definebodyfont [11pt,10pt,9pt] [mm]
     [mr=dsrom10 sa 1]
   \definebodyfont [8pt,7pt,6pt,5pt,4pt] [mm]
     [mr=dsrom8 sa 1]
\stoptypescript

\definetypeface [modern] [mm] [math] [modern] [ams] [encoding=texnansi]

\setupbodyfont[modern,10pt]

\definefamilysynonym [default] [doublestroke] [mr]

\def\dstroke{\fam\purefamily{doublestroke}}

\def\doublestroke#1{{\dstroke#1}}

\starttext
$\doublestroke{E} \doublestroke{1}$
\stoptext

works with MkIV (I used mr).

Wolfgang

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Re: Using dsrom with MKIV

[Aditya Mahajan]

On Wed, 24 Dec 2008, Wolfgang Schuster wrote:

>
> Am 24.12.2008 um 19:47 schrieb Aditya Mahajan:
>
>> However, in MKIV the 1 is shown in LM Roman rather than dsrom.
>> 
>> Is this a bug in context font handling, or a bug in the typescript?
>
> I think in the font handling because
>
> [snip]
> 
> works with MkIV (I used mr).

I am now really confused. I thought that mr was just like any other math 
family, just predefined to a default. But the above example shows that 
this is not the case.

Of course, I cannot use mr=dsrom in a complete document, since mr is the 
math roman font.

Aditya
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Re: Using dsrom with MKIV

[Hans Hagen]

Aditya Mahajan wrote:
> Hi,
> 
> The dsrom math font only works partially with MKIV, and I do not 
> understand what is happening. Consider the following example from 
> http://wiki.contextgarden.net/Doublestroke (which I wrote, after 
> suggestions on the mailing list). One needs the fonts, which are part of 
> TL and are also available at 
> http://ctan.org/tex-archive/fonts/doublestroke/
> 
> %=======================================================================
> \loadmapfile[dstroke.map]
> 
> \starttypescript [math] [modern,computer-modern,latin-modern,ams] [size]
>   \definebodyfont [17.3pt,14.4pt,12pt][mm]
>                   [mb=dsrom12 sa 1]
>   \definebodyfont [11pt,10pt,9pt] [mm]
>                   [mb=dsrom10 sa 1]
>   \definebodyfont [8pt,7pt,6pt,5pt,4pt] [mm]
>                   [mb=dsrom8 sa 1]
> \stoptypescript
> 
> \definetypeface [modern] [mm] [math] [modern] [ams] [encoding=texnansi]
> \setupbodyfont[reset,modern,10pt]
> 
> \definefamilysynonym [default] [doublestroke]   [mb]
> 
> \def\dstroke {\fam\purefamily  {doublestroke}}
> 
> \def\doublestroke#1{{\dstroke#1}}
> 
> \starttext
> $\doublestroke{E} \doublestroke{1}$
> \stoptext
> %=======================================================================
> 
> 
> This works correctly in MKII (Both E and 1 are shown in dsrom font). 
> However, in MKIV the 1 is shown in LM Roman rather than dsrom.
> 
> Is this a bug in context font handling, or a bug in the typescript?
> 
> I am using: context version: 2008.12.01 10:25
> This is LuaTeX, Version snapshot-0.30.3-2008112812

\def\doublestroke#1{{\fam\mbfam#1}}

\starttext
$\doublestroke{E} \doublestroke{1}$
\stoptext

indeed does not give a dstroked 1 ... i wonder why; maybe something with 
the mathcodes

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

Re: Using dsrom with MKIV

[Aditya Mahajan]

On Wed, 24 Dec 2008, Hans Hagen wrote:

> Aditya Mahajan wrote:
>> Hi,
>> 
>> The dsrom math font only works partially with MKIV, and I do not understand 
>> what is happening. Consider the following example from 
>> http://wiki.contextgarden.net/Doublestroke (which I wrote, after 
>> suggestions on the mailing list). One needs the fonts, which are part of TL 
>> and are also available at http://ctan.org/tex-archive/fonts/doublestroke/
>> 
>> %=======================================================================
>> \loadmapfile[dstroke.map]
>> 
>> \starttypescript [math] [modern,computer-modern,latin-modern,ams] [size]
>>   \definebodyfont [17.3pt,14.4pt,12pt][mm]
>>                   [mb=dsrom12 sa 1]
>>   \definebodyfont [11pt,10pt,9pt] [mm]
>>                   [mb=dsrom10 sa 1]
>>   \definebodyfont [8pt,7pt,6pt,5pt,4pt] [mm]
>>                   [mb=dsrom8 sa 1]
>> \stoptypescript
>> 
>> \definetypeface [modern] [mm] [math] [modern] [ams] [encoding=texnansi]
>> \setupbodyfont[reset,modern,10pt]
>> 
>> \definefamilysynonym [default] [doublestroke]   [mb]
>> 
>> \def\dstroke {\fam\purefamily  {doublestroke}}
>> 
>> \def\doublestroke#1{{\dstroke#1}}
>> 
>> \starttext
>> $\doublestroke{E} \doublestroke{1}$
>> \stoptext
>> %=======================================================================
>> 
>> 
>> This works correctly in MKII (Both E and 1 are shown in dsrom font). 
>> However, in MKIV the 1 is shown in LM Roman rather than dsrom.
>> 
>> Is this a bug in context font handling, or a bug in the typescript?
>> 
>> I am using: context version: 2008.12.01 10:25
>> This is LuaTeX, Version snapshot-0.30.3-2008112812
>
> \def\doublestroke#1{{\fam\mbfam#1}}

Thanks. I never understood why one needed to define such things using 
familysynonyms. The above defintition makes more sense. I will clean up 
the wiki examples for using other fonts.

> \starttext
> $\doublestroke{E} \doublestroke{1}$
> \stoptext
>
> indeed does not give a dstroked 1 ... i wonder why; maybe something with the 
> mathcodes

But why does it work if I replace mc by mr (as Wolfgang showed). Also, how 
can I check the mathcode of a character, other than going through the 
sources and figuring out where it is set.

Aditya
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Re: Using dsrom with MKIV

[Taco Hoekwater]

Aditya Mahajan wrote:
> 
> But why does it work if I replace mc by mr (as Wolfgang showed). Also, 
> how can I check the mathcode of a character, other than going through 
> the sources and figuring out where it is set.

   \message{\the\mathcode`\1 }

And it is "0031. It should have been "7031 for variable family use.
That is the value that initex initializes it to (that explains mkii).
Mkiv sets the values explicitly (and incorrectly)

In math-ini.lua:

@@ -52,7 +52,7 @@
  mathematics.classes.diacritic   = mathematics.classes.accent
  mathematics.classes.large       = mathematics.classes.op
  mathematics.classes.variable    = mathematics.classes.alphabetic
-mathematics.classes.number      = mathematics.classes.nothing
+mathematics.classes.number      = mathematics.classes.alphabetic



Best wishes,
Taco






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Re: Using dsrom with MKIV

[Hans Hagen]

Taco Hoekwater wrote:
> Aditya Mahajan wrote:
>>
>> But why does it work if I replace mc by mr (as Wolfgang showed). Also, 
>> how can I check the mathcode of a character, other than going through 
>> the sources and figuring out where it is set.
> 
>   \message{\the\mathcode`\1 }
> 
> And it is "0031. It should have been "7031 for variable family use.
> That is the value that initex initializes it to (that explains mkii).
> Mkiv sets the values explicitly (and incorrectly)
> 
> In math-ini.lua:
> 
> @@ -52,7 +52,7 @@
>  mathematics.classes.diacritic   = mathematics.classes.accent
>  mathematics.classes.large       = mathematics.classes.op
>  mathematics.classes.variable    = mathematics.classes.alphabetic
> -mathematics.classes.number      = mathematics.classes.nothing
> +mathematics.classes.number      = mathematics.classes.alphabetic

ok fixed

-----------------------------------------------------------------
                                           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: Using dsrom with MKIV

[Aditya Mahajan]

On Thu, 25 Dec 2008, Taco Hoekwater wrote:

> Aditya Mahajan wrote:
>> 
>> But why does it work if I replace mc by mr (as Wolfgang showed). Also, how 
>> can I check the mathcode of a character, other than going through the 
>> sources and figuring out where it is set.
>
>  \message{\the\mathcode`\1 }
>
> And it is "0031. It should have been "7031 for variable family use.
> That is the value that initex initializes it to (that explains mkii).
> Mkiv sets the values explicitly (and incorrectly)
>
> In math-ini.lua:
>
> @@ -52,7 +52,7 @@
> mathematics.classes.diacritic   = mathematics.classes.accent
> mathematics.classes.large       = mathematics.classes.op
> mathematics.classes.variable    = mathematics.classes.alphabetic
> -mathematics.classes.number      = mathematics.classes.nothing
> +mathematics.classes.number      = mathematics.classes.alphabetic
>

Thank you. After making this change and regenerating formats, the dsrom 
works correctly for both the test document and my actual document.

Aditya
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