[NTG-context] \typescriptthree within the optional argument of \definefontsynonym

[Wolfgang Schuster]

> Mohammad Hossein Bateni <mailto:bateni at gmail.com>
> 4. August 2016 um 15:24
> Hello Hans,
>
> Suppose you have a typescript as follows.
>
> \starttypescript [first] [MyFont] [GoodieOne,GoodieTwo]
>   \definefontsynonym [Serif] [\typescripttwo] [goodies=\typescriptthree]
> \stoptypescript
>
> Using macros \typescriptX (for X=one, two, and three) works in the 
> first and second arguments in \definefontsynonym but not in the 
> optional argument.  This seems to be because the optional argument is 
> not expanded.  Is this a bug or a feature?
>
> What I want to do was have a set of "fixes" (correcting kern issues, 
> etc.) for a collection of fonts.  I can either put these in separate 
> goodie files or feature sets (the latter being what I was trying but 
> not in the sample above), and write generic typescripts that would 
> load any of the fonts with its associated fixes.
>
> While I can use sans/serif/mono in the first argument, and name of the 
> font in the second argument (to be mapped appropriately using 
> \typescriptprefix to nmemonic name and real font name), the third 
> (optional) argument of \definefontsynonym does not expand immediately, 
> hence I'll end up with "undefined" \typescriptthree when it will be used.
You can try to expand the value of \typescripthree with

\starttypescript[...][...][...]
     \expanded{\definefontsynonym[...][...][goodies=\typescriptthree]}
     \expanded{\definefontsynonym[...][...][goodies=\typescriptthree]}
\stoptypescript

or

\starttypescript[...][...][...]
     \startexpanded
         \definefontsynonym[...][...][goodies=\typescriptthree]
         \definefontsynonym[...][...][goodies=\typescriptthree]
     \stopexpanded
\stoptypescript

Wolfgang
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