On 2010-12-12 Wolfgang Schuster <[email protected]> wrote:
> > Maybe it is possible that the \sc macro can check if the font contains the
> > small caps as a feature. Is there a switch like
> > \doiffontfeatureexists{smcp}{...}?
>
> \startluacode
> function commands.doifelsecurrentfonthasfeature(name)
> local f = fonts.identifiers[font.current()]
> f = f and f.shared
> f = f and f.otfdata
> f = f and f.luatex
> f = f and f.features
> commands.doifelse(f and (f.gpos[name] or f.gsub[name]))
> end
> \stopluacode
>
> \def\doifelsecurrentfonthasfeature#1%
> {\ctxlua{commands.doifelsecurrentfonthasfeature("#1")}}
>
> \let\normalsc\sc
> \definefontfeature[smcp][smcp=yes]
> \definefontfeature[latn][script=latn]
>
> \unexpanded\def\sc{\doifelsecurrentfonthasfeature{smcp}{\addfs{smcp}}\normalsc}
>
> \starttext
>
> \tf text \sc text
>
> \switchtobodyfont[cambria]\addfs{latn} % cambria needs the latin script for
> smallcaps
>
> \tf text \addfs{smcp} text
>
> \switchtobodyfont[modern]
>
> \tf text \sc text
>
> \stoptext
That's a nice piece of code! Thanks for your effort.
Marco
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