Font combinations

[bytex0a]

I would like to combine two fonts as described in the luaotfload manual (p. 23), i.e. use a base font and replace some glyphs by those of a second font.

\def \feats {-tlig;-liga;mode=base;-kern} 
\def \fileone {EBGaramond12-Italic.otf}
\def \filetwo {FreeMonoBoldOblique.otf}
\def \filethree {SourceSansPro-ExtraLight.otf} 
\input luaotfload.sty
\font \one = file:\fileone :\feats
\font \two = file:\filetwo :\feats
\font \three = file:\filethree :\feats
\font \onetwothree = "combo: 1 -> \fontid \one ;
2 -> \fontid \two , 0x30-0x39;
3 -> \fontid \three , 0x21*0x3f; "
{\onetwothree \TeX —0123456789—?!} 
\bye

Could this be achieved using OpTeX?

[olsak]

I replaced \input luaotfload.sty by \initunifonts in your example (because this OpTeX macro initializes luaotfload) and the code can be processed by OpTeX:

\def \feats {-tlig;-liga;mode=base;-kern} 
\def \fileone {EBGaramond-Italic.otf}
\def \filetwo {FreeMonoBoldOblique.otf}
\def \filethree {SourceSansPro-ExtraLight.otf} 
\initunifonts
\font \one = file:\fileone :\feats
\font \two = file:\filetwo :\feats
\font \three = file:\filethree :\feats
\font \onetwothree = "combo: 1 -> \fontid \one ;
2 -> \fontid \two , 0x30-0x39;
3 -> \fontid \three , 0x21*0x3f; "
{\onetwothree \TeX —0123456789—?!} 
\bye

Where is a problem?

[bytex0a]

I'd like to use such a combined font within the OpTeX font selection system. For example selecting font family Baskerville the lowercase glyphs a-z of the regular font should be taken from e.g. Times regular font (doesn't make sense, just for example). 22.10.2024 18:40:39 Petr Olšák ***@***.***>:

…

I replaced *\input luaotfload.sty* by *\initunifonts* in your example (because this OpTeX macro initializes luaotfload) and the code can be processed by OpTeX: *\def \feats {-tlig;-liga;mode=base;-kern} \def \fileone {EBGaramond-Italic.otf} \def \filetwo {FreeMonoBoldOblique.otf} \def \filethree {SourceSansPro-ExtraLight.otf} \initunifonts \font \one = file:\fileone :\feats \font \two = file:\filetwo :\feats \font \three = file:\filethree :\feats \font \onetwothree = "combo: 1 -> \fontid \one ; 2 -> \fontid \two , 0x30-0x39; 3 -> \fontid \three , 0x21*0x3f; " {\onetwothree \TeX —0123456789—?!} \bye * Where is a problem? — Reply to this email directly, view it on GitHub[#196 (comment)], or unsubscribe[https://github.com/notifications/unsubscribe-auth/AGDGIAFAEYU2V4WJDV4WANLZ4Z5YNAVCNFSM6AAAAABQM3FHZGVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTCMBRHE3TEMI]. You are receiving this because you authored the thread. [Verfolgungsbild][https://github.com/notifications/beacon/AGDGIAGUIR53W3KW7AN7ZSTZ4Z5YNA5CNFSM6AAAAABQM3FHZGWGG33NNVSW45C7OR4XAZNRIRUXGY3VONZWS33OINXW23LFNZ2KUY3PNVWWK3TUL5UWJTQAVAS4S.gif]

[olsak]

OK. Next example combines letters from Pagella-Italic and Heros-Bold. Moreover, the macro \combofont respects the current size of fonts given by the OpTeX font selection system.

\fontfam[Heros]
\fontfam[Pagella]

\fontdef\one{\Pagella\it}   % Pagella-Italic
\fontdef\two{\Heros\bf}     % Heros-Bold

\def\combofont{%
   \fontlet\one=\one \_sizespec \fontlet\two=\two \_sizespec % resize \one and \two to the current font size
   \font \combospec = "combo: 1 -> \fontid \one ; 2 -> \fontid \two , 0x30-0x39;"
   \combospec
}

\combofont Text 012345.
\medskip
\setfontsize{at14pt}\combofont Larger text 12345.

\bye

[bytex0a]

Many thanks! OpTeX is great. 22.10.2024 20:10:46 Petr Olšák ***@***.***>:

…

OK. Next example combines letters from Termes-Italic and Pagella-Regular. Moreover, the macro *\combofont* respects the current size of fonts given by the OpTeX font selection system. *\fontfam[Heros] \fontfam[Pagella] \fontdef\one{\Pagella\it} % Pagella-Italic \fontdef\two{\Heros\bf} % Heros-Bold \def\combofont{% \fontlet\one=\one \_sizespec \fontlet\two=\two \_sizespec % resize \one and \two to the current font size \font \combospec = "combo: 1 -> \fontid \one ; 2 -> \fontid \two , 0x30-0x39;" \combospec } \combofont Text 012345. \medskip \setfontsize{at14pt}\combofont Larger text 12345. \bye * — Reply to this email directly, view it on GitHub[#196 (comment)], or unsubscribe[https://github.com/notifications/unsubscribe-auth/AGDGIAF36PVGDESAJKSMKMLZ42IKLAVCNFSM6AAAAABQM3FHZGVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTCMBSGA2TCOA]. You are receiving this because you authored the thread. [Verfolgungsbild][https://github.com/notifications/beacon/AGDGIAEIZWLD64TD5IURCRTZ42IKLA5CNFSM6AAAAABQM3FHZGWGG33NNVSW45C7OR4XAZNRIRUXGY3VONZWS33OINXW23LFNZ2KUY3PNVWWK3TUL5UWJTQAVAUOM.gif]