Changing the font based on availability to fontspec












5















I would like to distribute a class that uses a professional font loaded via fontspec, and falls back to one of the default fonts in TeX Live if this is not available. I know that one can detect fonts packaged with TeX Live:



documentclass{article}

usepackage{fontspec}

IfFileExists{tgpagella.sty}{setmainfont{TeX Gyre Pagella}}{}



begin{document}



fontnamefont at thefontdimen6font



end{document}


This doesn't work, however, if one instead tries to detect a font file in the same directory:



documentclass{article}

usepackage{fontspec}

IfFileExists{texgyrepagella-regular.otf}{setmainfont{TeX Gyre Pagella}}{}



begin{document}



fontnamefont at thefontdimen6font



end{document}


Is there a mechanism somewhere to include .otf files in what IfFileExists is able to detect?






fonts fontspec







share|improve this question























  • fontspec has a fallback mechanism these days older answer but Will added a proper interface to that if I recall correctly

    – David Carlisle
    Jan 21 at 16:38








  • 1





    fontspec_font_if_exist:nTF and similar commands look to be the right thing....

    – David Carlisle
    Jan 21 at 16:43






  • 1





    @DavidCarlisle the documentation suggests IfFontExistsTF.

    – Ulrike Fischer
    Jan 21 at 16:44






  • 5





    @UlrikeFischer but it looks much more impressive with _ and :

    – David Carlisle
    Jan 21 at 16:45











  • Brilliant; thank you both!

    – Andrew Dunning
    Jan 21 at 16:46
















5















I would like to distribute a class that uses a professional font loaded via fontspec, and falls back to one of the default fonts in TeX Live if this is not available. I know that one can detect fonts packaged with TeX Live:



documentclass{article}

usepackage{fontspec}

IfFileExists{tgpagella.sty}{setmainfont{TeX Gyre Pagella}}{}



begin{document}



fontnamefont at thefontdimen6font



end{document}


This doesn't work, however, if one instead tries to detect a font file in the same directory:



documentclass{article}

usepackage{fontspec}

IfFileExists{texgyrepagella-regular.otf}{setmainfont{TeX Gyre Pagella}}{}



begin{document}



fontnamefont at thefontdimen6font



end{document}


Is there a mechanism somewhere to include .otf files in what IfFileExists is able to detect?






fonts fontspec







share|improve this question























  • fontspec has a fallback mechanism these days older answer but Will added a proper interface to that if I recall correctly

    – David Carlisle
    Jan 21 at 16:38








  • 1





    fontspec_font_if_exist:nTF and similar commands look to be the right thing....

    – David Carlisle
    Jan 21 at 16:43






  • 1





    @DavidCarlisle the documentation suggests IfFontExistsTF.

    – Ulrike Fischer
    Jan 21 at 16:44






  • 5





    @UlrikeFischer but it looks much more impressive with _ and :

    – David Carlisle
    Jan 21 at 16:45











  • Brilliant; thank you both!

    – Andrew Dunning
    Jan 21 at 16:46














5












5








5








I would like to distribute a class that uses a professional font loaded via fontspec, and falls back to one of the default fonts in TeX Live if this is not available. I know that one can detect fonts packaged with TeX Live:



documentclass{article}

usepackage{fontspec}

IfFileExists{tgpagella.sty}{setmainfont{TeX Gyre Pagella}}{}



begin{document}



fontnamefont at thefontdimen6font



end{document}


This doesn't work, however, if one instead tries to detect a font file in the same directory:



documentclass{article}

usepackage{fontspec}

IfFileExists{texgyrepagella-regular.otf}{setmainfont{TeX Gyre Pagella}}{}



begin{document}



fontnamefont at thefontdimen6font



end{document}


Is there a mechanism somewhere to include .otf files in what IfFileExists is able to detect?






fonts fontspec







share|improve this question














I would like to distribute a class that uses a professional font loaded via fontspec, and falls back to one of the default fonts in TeX Live if this is not available. I know that one can detect fonts packaged with TeX Live:



documentclass{article}

usepackage{fontspec}

IfFileExists{tgpagella.sty}{setmainfont{TeX Gyre Pagella}}{}



begin{document}



fontnamefont at thefontdimen6font



end{document}


This doesn't work, however, if one instead tries to detect a font file in the same directory:



documentclass{article}

usepackage{fontspec}

IfFileExists{texgyrepagella-regular.otf}{setmainfont{TeX Gyre Pagella}}{}



begin{document}



fontnamefont at thefontdimen6font



end{document}


Is there a mechanism somewhere to include .otf files in what IfFileExists is able to detect?






fonts fontspec




fonts fontspec






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Jan 21 at 16:16









Andrew DunningAndrew Dunning

558214




558214













  • fontspec has a fallback mechanism these days older answer but Will added a proper interface to that if I recall correctly

    – David Carlisle
    Jan 21 at 16:38








  • 1





    fontspec_font_if_exist:nTF and similar commands look to be the right thing....

    – David Carlisle
    Jan 21 at 16:43






  • 1





    @DavidCarlisle the documentation suggests IfFontExistsTF.

    – Ulrike Fischer
    Jan 21 at 16:44






  • 5





    @UlrikeFischer but it looks much more impressive with _ and :

    – David Carlisle
    Jan 21 at 16:45











  • Brilliant; thank you both!

    – Andrew Dunning
    Jan 21 at 16:46



















  • fontspec has a fallback mechanism these days older answer but Will added a proper interface to that if I recall correctly

    – David Carlisle
    Jan 21 at 16:38








  • 1





    fontspec_font_if_exist:nTF and similar commands look to be the right thing....

    – David Carlisle
    Jan 21 at 16:43






  • 1





    @DavidCarlisle the documentation suggests IfFontExistsTF.

    – Ulrike Fischer
    Jan 21 at 16:44






  • 5





    @UlrikeFischer but it looks much more impressive with _ and :

    – David Carlisle
    Jan 21 at 16:45











  • Brilliant; thank you both!

    – Andrew Dunning
    Jan 21 at 16:46

















fontspec has a fallback mechanism these days older answer but Will added a proper interface to that if I recall correctly

– David Carlisle
Jan 21 at 16:38







fontspec has a fallback mechanism these days older answer but Will added a proper interface to that if I recall correctly

– David Carlisle
Jan 21 at 16:38






1




1





fontspec_font_if_exist:nTF and similar commands look to be the right thing....

– David Carlisle
Jan 21 at 16:43





fontspec_font_if_exist:nTF and similar commands look to be the right thing....

– David Carlisle
Jan 21 at 16:43




1




1





@DavidCarlisle the documentation suggests IfFontExistsTF.

– Ulrike Fischer
Jan 21 at 16:44





@DavidCarlisle the documentation suggests IfFontExistsTF.

– Ulrike Fischer
Jan 21 at 16:44




5




5





@UlrikeFischer but it looks much more impressive with _ and :

– David Carlisle
Jan 21 at 16:45





@UlrikeFischer but it looks much more impressive with _ and :

– David Carlisle
Jan 21 at 16:45













Brilliant; thank you both!

– Andrew Dunning
Jan 21 at 16:46





Brilliant; thank you both!

– Andrew Dunning
Jan 21 at 16:46










1 Answer
1






active

oldest

votes


















9














Recent fontspec releases allow you to test for a font being loadable with IfFontExistsTF or its internal expl3 version fontspec_font_if_exist:nTF:



documentclass{article}

usepackage{fontspec}

IfFontExistsTF{texgyrepagella-regular.otf}{setmainfont{TeX Gyre Pagella}}{}



begin{document}



fontnamefont at thefontdimen6font



end{document}





share|improve this answer

























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    9














    Recent fontspec releases allow you to test for a font being loadable with IfFontExistsTF or its internal expl3 version fontspec_font_if_exist:nTF:



    documentclass{article}
    
usepackage{fontspec}
    
IfFontExistsTF{texgyrepagella-regular.otf}{setmainfont{TeX Gyre Pagella}}{}
    

    
begin{document}
    

    
fontnamefont at thefontdimen6font
    

    
end{document}





    share|improve this answer






























      9














      Recent fontspec releases allow you to test for a font being loadable with IfFontExistsTF or its internal expl3 version fontspec_font_if_exist:nTF:



      documentclass{article}
      
usepackage{fontspec}
      
IfFontExistsTF{texgyrepagella-regular.otf}{setmainfont{TeX Gyre Pagella}}{}
      

      
begin{document}
      

      
fontnamefont at thefontdimen6font
      

      
end{document}





      share|improve this answer




























        9












        9








        9







        Recent fontspec releases allow you to test for a font being loadable with IfFontExistsTF or its internal expl3 version fontspec_font_if_exist:nTF:



        documentclass{article}
        
usepackage{fontspec}
        
IfFontExistsTF{texgyrepagella-regular.otf}{setmainfont{TeX Gyre Pagella}}{}
        

        
begin{document}
        

        
fontnamefont at thefontdimen6font
        

        
end{document}





        share|improve this answer















        Recent fontspec releases allow you to test for a font being loadable with IfFontExistsTF or its internal expl3 version fontspec_font_if_exist:nTF:



        documentclass{article}
        
usepackage{fontspec}
        
IfFontExistsTF{texgyrepagella-regular.otf}{setmainfont{TeX Gyre Pagella}}{}
        

        
begin{document}
        

        
fontnamefont at thefontdimen6font
        

        
end{document}






        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Jan 21 at 19:23









        Andrew Dunning

        558214




        558214










        answered Jan 21 at 17:26









        David CarlisleDavid Carlisle

        487k4111251870




        487k4111251870






























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