Cap ligatures in Adobe Arno Pro won't compile

[translit]

Hi and best wishes for 2016.

I've got an issue with the 'RA' ligature.

The font I use – Adobe Arno Pro – contains a beautiful liason between the bottom serifs of capital R and A that used to complie just fine. But after updating my MacTeX installation, LuaTeX rev. 39057 stumbles: This can't happen (linebreak_tail).

Here's the minimum working example:

\documentclass[]{memoir}
\usepackage{fontspec}
\setmainfont[]{Arno Pro}
\newcommand\allcapsspacing[1]{{\addfontfeature{LetterSpace=7.5}#1}}
\begin{document}
{\Huge \allcapsspacing{FOOBRA}}\\[\baselineskip]
\end{document}

The code compiles well if I switch the font or lowercase FOOBRA.

Is this a LuaLaTeX bug?

[phi-gamma]

Hi,

thanks for the report. Best wishes for the year to you too.

···<date: 2016-01-04, Monday>···<from: translit>···

I've got an issue with the 'RA' ligature

Looks like I broke it :/ I’ve included a minimal failing example
in the test repo:

https://bitbucket.org/phg/lua-la-tex-tests/src/tip/plain/pln-letterspace-11-liga.tex

I’ll investigate.

Is this a LuaLaTeX bug?

Nope, the letterspacing code is Luaotfload only.

That URL got muddled but I could reconstruct it:

http://blogs.adobe.com/typblography/files/2013/11/ArnoPro-Regular_GC.pdf

Best,
Philipp

[phi-gamma]

···<date: 2016-01-04, Monday>···<from: translit>···

I've got an issue with the 'RA' ligature
…
The code compiles well if I switch the font or lowercase FOOBRA

I’ve cooked something up. Could you test this patch to
luaotfload-letterspace.lua?

https://github.com/phi-gamma/luaotfload/commit/8481fc2a3da5571d3817fe7797f9191543e7dcc8

Looks like invalid node sequences were being passed to Luatex
after letterspacing ligature components.

[phi-gamma]

···<date: 2016-01-04, Monday>···<from: translit>···

I've got an issue with the 'RA' ligature

The font I use – [Adobe Arno Pro][1] – contains a beautiful
liason between the bottom serifs of capital R and A that used to
complie just fine But after updating my MacTeX installation,
LuaTeX rev 39057 stumbles: This can't happen (linebreak_tail)

The latest release contains the patch; did the situation improve?

[phi-gamma]

Assumed fixed, closing. Please reopen if appropriate.