Cfrgtkky

I usually use a different font for URLs e.g. email adresses. Today, I tried to change it in a letter to use the same font als the normal text and it cancelled the justification in the main body of the letter. A MWE is here:

documentclass[fromemail=true]{scrlttr2}

usepackage{fontspec}

setmainfont[Ligatures=TeX]{TeX Gyre Pagella}

% setmonofont[Ligatures=TeX]{TeX Gyre Pagella}

usepackage{url}

setkomavar{fromname}{John Doe}

setkomavar{fromaddress}{Some Place\Somewhere}

setkomavar{fromemail}{url{john.doe@example.com}}

usepackage{lipsum}

begin{document}



begin{letter}{irgendwas}

setkomavar{toname}{People, who understand LaTeX{} better than me}

setkomavar{toaddress}{Maybe on Stackexchange}

setkomavar{subject}{Is this a bug?}



opening{Dear,}



lipsum[1]



closing{Regards}

end{letter}

end{document}

Compiling this (with LuaLaTeX) yields fine justification. But after uncommenting the commented line, there is no more justification in the main body.

Is this a bug or am I misunderstanding some features of LuaLaTeX, KOMAscript, fontspec or url?

The monospaced font is assigned rigid interword space, which of course makes justification essentially impossible.

For efficiency reasons, a font is loaded only once, so your declaration has the effect of setting rigid interword space also for the main font.

Switch the order of declarations, as the “monospaced” font having flexible interword space should not be a concern.

documentclass[fromemail=true]{scrlttr2}

usepackage{fontspec}

setmonofont[Ligatures=TeX]{TeX Gyre Pagella}

setmainfont[Ligatures=TeX]{TeX Gyre Pagella}

usepackage{url}

setkomavar{fromname}{John Doe}

setkomavar{fromaddress}{Some Place\Somewhere}

setkomavar{fromemail}{url{john.doe@example.com}}

usepackage{lipsum}

begin{document}



begin{letter}{irgendwas}

setkomavar{toname}{People, who understand LaTeX{} better than me}

setkomavar{toaddress}{Maybe on Stackexchange}

setkomavar{subject}{Is this a bug?}



opening{Dear,}



lipsum[1]



closing{Regards}

end{letter}

end{document}

On the other hand, using urlstyle{rm} seems much easier.

documentclass[fromemail=true]{scrlttr2}

usepackage{fontspec}

setmainfont[Ligatures=TeX]{TeX Gyre Pagella}

usepackage{url}

setkomavar{fromname}{John Doe}

setkomavar{fromaddress}{Some Place\Somewhere}

setkomavar{fromemail}{url{john.doe@example.com}}

urlstyle{rm}



usepackage{lipsum}

begin{document}



begin{letter}{irgendwas}

setkomavar{toname}{People, who understand LaTeX{} better than me}

setkomavar{toaddress}{Maybe on Stackexchange}

setkomavar{subject}{Is this a bug?}



opening{Dear,}



lipsum[1]



closing{Regards}

end{letter}

end{document}