Problem with typescripts - oldstyle numbers

Problem with typescripts - oldstyle numbers

[Thomas A. Schmitz]

I just realized the pattern in a somewhat unexpected behavior in a  
typescript. It defines several instances of Adobe Caslon (with or  
without certain ligatures, oldstyle, proportional numbers etc.). I  
want typewriter and math from Latin Modern. In the end, the typefaces  
are defined:


\starttypescript [Caslonpnum]
   \definetypeface [MyCaslonpnum] [rm] [serif] [caslonpnum] [default]  
[encoding=\typescripttwo]
   \definetypeface [MyCaslonpnum] [tt] [mono] [modern] [default]  
[encoding=\typescripttwo]
\stoptypescript

Here's the catch: as soon as I add a definition for a math font:

   \definetypeface [MyCaslonpnum] [mm] [math] [modern] [default] 
[encoding=\typescripttwo]

oldstyle figures will always be taken from the math font. If I delete  
this line from the typescript, I get the oldstyle figures from the  
font defined as [OldStyle]. Looks like a bug to me. Or am I  
misunderstanding something?

Thomas

Re: Problem with typescripts - oldstyle numbers

[Hans Hagen]

Thomas A. Schmitz wrote:
> I just realized the pattern in a somewhat unexpected behavior in a  
> typescript. It defines several instances of Adobe Caslon (with or  
> without certain ligatures, oldstyle, proportional numbers etc.). I  
> want typewriter and math from Latin Modern. In the end, the typefaces  
> are defined:
>
>
> \starttypescript [Caslonpnum]
>    \definetypeface [MyCaslonpnum] [rm] [serif] [caslonpnum] [default]  
> [encoding=\typescripttwo]
>    \definetypeface [MyCaslonpnum] [tt] [mono] [modern] [default]  
> [encoding=\typescripttwo]
> \stoptypescript
>
> Here's the catch: as soon as I add a definition for a math font:
>
>    \definetypeface [MyCaslonpnum] [mm] [math] [modern] [default] 
> [encoding=\typescripttwo]
>
> oldstyle figures will always be taken from the math font. If I delete  
> this line from the typescript, I get the oldstyle figures from the  
> font defined as [OldStyle]. Looks like a bug to me. Or am I  
> misunderstanding something?
>   
there are several definitions:

\def\os  {\mathortext{\fam\purefamily    {oldstyle}}{\symbolicfont    {OldStyle}}}

\definefontsynonym [OldStyle]     [Serif]

and in the cmr synonyms OldStyle comes from a math font 

when i need oldstyles, i just define an oldstyle typeface, eg with optima nova (type-ghz.tex): 

\starttypescript [sans] [optima-nova-os] [name]

  \definefontsynonym [Sans]            [OptimaNovaLT-RegularOsF]
  \definefontsynonym [SansItalic]      [OptimaNovaLT-ItalicOsF]
  \definefontsynonym [SansBold]        [OptimaNovaLT-BoldOsF]
  \definefontsynonym [SansBoldItalic]  [OptimaNovaLT-BoldItalicOsF]
  \definefontsynonym [SansSlanted]     [OptimaNovaLT-ItalicOsF]
  \definefontsynonym [SansBoldSlanted] [OptimaNovaLT-BoldItalicOsF]
  \definefontsynonym [SansCaps]        [OptimaNovaLT-RegularSC]

\stoptypescript

\definetypeface[optima][ss][sans][optima-nova][default][encoding=texnansi]
\definetypeface[osoptima][ss][sans][optima-nova-os][default][encoding=texnansi]

so i do a complete switch from \optima to \osoptima when needed 

Hans 


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