I am a few months into learning LaTeX. I would like to use microtype with LuaLaTeX and I would like to obtain letter spacing for my smallcaps. I've tried to follow some of the threads on the subject but when I try to implement the suggestions I just end up with errors. The minimal example below works as far as protrusion/expansion, but the letterspacing is just ignored. Please excuse my frankenCode... I cobbled it together from a bunch of different threads on this forum... any advice would be much appreciated. I need the font expansion due to very narrow columns and I need to use LuaLaTeX due to some packages I'm working with.
\documentclass[article]{memoir}
\usepackage{fontspec}
\defaultfontfeatures{Ligatures=TeX}
\newfontfeature{Microtype}{protrusion=default;expansion=default}
\directlua{fonts.expansions.setups.default.stretch=5.5}
\setmainfont[Microtype,Numbers=OldStyle]{Arno Pro}
\usepackage{microtype}
\newfontfamily{\regBlackSmallCaps}%
[Letters={SmallCaps},
LetterSpace=3.0, Scale=.95]
{ArnoPro-regular}
\begin{document}
{\regBlackSmallCaps This is a test}
\end{document}
EDIT:
Thank you Mico for responding.
After going though the answers to similar posts I've managed to get a little further. Using Renderer=Basic and making sure I have updated versions of fontspec and microtype, the code below works. The first line spaces correctly, the second line doesn't. I'm wondering if there is a way to Incorporate the \textls{\addfontfeatures{Renderer=Basic} into the newfontfamily specifications.
\documentclass{article}
\usepackage{fontspec,microtype}
\setmainfont[
]{Arno Pro}
\newfontfamily{\smBlackSC} %Small | Black | Smallcap
[Letters={UppercaseSmallCaps, SmallCaps},
LetterSpace=9 .0,
Scale=.9,
Numbers={OldStyle,Proportional}]
{ArnoPro-regular}
\begin{document}
{\smBlackSC{\textls{\addfontfeatures{Renderer=Basic}Lorem Ipsum}}}
{\smBlackSC Lorem Ipsum}
\end{document}
microtypepackage notes, on pp. 26f., that the command\newfontfeature{Microtype}{protrusion=default;expansion=default}"should not be used with this package, as it will basically override the settings made by microtype -- despite the naming, the above lines have nothing to do with the this package." [emphasis in the original] Incidentally, if all you want or need is letterspacing capability, you may want to look into using theletterspacepackage.Renderer=Basicto\newfontfamily? Something like[Renderer=Basic,Letters=…,Letterspace=…. What happens then?\textls{\addfontfeatures{Renderer=Basic}wherever I use small caps which was messy but works. another problem is that Renderer=Basic breaks my use of xcolor that I set up in my \newfontfamilies so I have to declare the color again whenever I use smallcaps and my second color. Frustrating. So, I'm hoping there will be further development of LuaLaTeX, Microtype and fontspec so they will play better together.TeX Gyre Pagella, because theArnofont is not available (to me).Microtypewas updated 2013/05/23 and I used the the beta7 before that. In both cases you can use letterspacing with LuaLaTeX. The 2nd example works for me on an updated TeXLive 2013.