[NTG-context] Re: Applying \sc for smallcaps across styles

[Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>]

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Hamid,Idris schrieb am 19.08.2023 um 16:03:
> Dear gang,
>
> Consider the following typescript template:
>
> \definefontfeature
>   [myfont-tf-sc]
>   [mode=node,script=latn,language=dflt,trep=no,
>    protrusion=quality,expansion=quality,
>    compose=yes,combine=yes,tlig=yes,
>    kern=yes,liga=yes,onum=yes,cpsp=yes,smcp=yes, % smcp activie
>    trnsl=force]
>
> % synonym mapping
> \starttypescript [serif] [myfont] [name]
>   \loadfontgoodies[myfontlfg]
>   \definefontsynonym [Serif]           [MyFontRegular] 
>  [features=myfont-tf]
>   \definefontsynonym [SerifItalic]     [MyFontItalic] 
>  [features=myfont-it]
>   \definefontsynonym [SerifBold]       [MyFontBold]  [features=myfont-tf]
>   \definefontsynonym [SerifBoldItalic] [MyFontBoldItalic] 
> [features=myfont-it]
>
>   \definefontsynonym [SerifCaps]           [MyFontRegular] 
>  [features=myfont-tf-sc]
>   \definefontsynonym [SerifCapsItalic]     [MyFontItalic] 
>  [features=myfont-it-sc]
>   \definefontsynonym [SerifCapsBold]       [MyFontBold] 
>  [features=myfont-tf-sc]
>   \definefontsynonym [SerifCapsBoldItalic] [MyFontBoldItalic] 
> [features=myfont-it-sc]
> \stoptypescript
>
> % font mapping
> \starttypescript [serif] [myfont]
>   \loadfontgoodies[myfontlfg]
>   \definefontsynonym [MyFontRegular]     [file:MyFont-Regular] % 
> [features=myfont-tf]
>   \definefontsynonym [MyFontItalic]      [file:MyFont-It]      % 
> [features=myfont-it]
>   \definefontsynonym [MyFontBold]        [file:MyFont-Bold]    % 
> [features=myfont-tf]
>   \definefontsynonym [MyFontBoldItalic]  [file:MyFont-BoldIt]  % 
> [features=myfont-it]
> \stoptypescript
>
> As is well known, \sc selects the small caps only from the Serif font, 
> not from SerifBold etc. But MyFont has smallcaps for every style. So 
> in the typescript we make that explicit and apply the 
> smcp=yes fontfeature to SerifCapsBold etc.
>
> But this does not work: \sc still only applies to Serif or SerifCaps.
>
> Now I can load a goodies file myfontlfg and do something like this:
>
> local smallcaps = {
>     smcp = yes,
> }
>
> But that does not change the behavior of \sc.
>
> Yes, there is an easy workaround:
>
> \definefontfeature[smallcaps][smcp=yes]
> \define\sc{\addff{smallcaps}}
>
> This works for all styles that have the smcp feature, but I don't like 
> having to redefine a system command.
>
> So the questions are:
>
> 1) Is there a recommended\better way to get \sc to work across all 
> styles?

\setupbodyfont[pagella]

\starttext

\tf Upright, \it Italic, \bf Bold and \bi Bolditalic

\style[style=smallcaps]{\tf Upright, \it Italic, \bf Bold and \bi 
Bolditalic}

\tf Upright, \it Italic, \bf Bold and \bi Bolditalic

\setsmallcaps\tf Upright, \it Italic, \bf Bold and \bi Bolditalic

\stoptext


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