[XeTeX] The arcs package

[Arash Zeini]

Hello,

Since the upgrade to TeX Live 2013, the arcs package behaves strangely. It
draws the desired arc under the respective characters, but a string like
"5.0pt" will always precede the characters with the arc. Has anyone else
noticed this problem?

I have tried this MWE with two different fonts on two computers running
Debian unstable and a "vanilla" TL 2013:

\documentclass[a4paper,12pt]{article}

\usepackage{xltxtra}

\setromanfont[Mapping=tex-text]{Junicode}
\usepackage{arcs}

\begin{document}
An underarc: \underarc{ab}. And now an overarc: \overarc{ab}.

\end{document}

Best wishes,
Arash
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