[XeTeX] Charis SIL and omicron

[Arash Zeini]

On Sunday 08 November 2009, Peter Baker wrote:
> Arash Zeini wrote:
> > Dear All,
> >
> > I am using Charis SIL, version 4.106 on a Linux machine with:
> >
> > XeTeX 3.1415926-2.2-0.999.6 (Web2C 7.5.7)
> > kpathsea version 3.5.7
> > Copyright 2008 SIL International.
> >
> > Today I noticed the following message at the end of the compilation if I
> > used an omicron in my text:
> >
> > ** WARNING ** Invalid CMap mapping entry. (ignored)
> >
> > The resulting PDF has only empty boxes instead of the intended omicron
> > (see attached). A minimal example:
> >
> > \documentclass[a4paper,12pt]{article}
> >
> > \usepackage{xltxtra}
> >
> > \setmainfont[Mapping=tex-text]{Charis SIL}
> > % \setromanfont[Mapping=tex-text]{Linux Libertine O}
> >
> > \begin{document}
> > The Greek capital letter omicron Ο, \textit{Ο} and its small version ο,
> > \textit{ο}. A test with Δ δ, also in italics \emph{Δ δ}. And more: Θ θ Γ
> > γ.
> 
> CharisSIL 4.106 doesn't have upper- or lower-case omicron. Its Greek set
> seems to be limited to those characters used in the IPA. Those glyphs
> have shapes appropriate to the IPA rather than those commonly used in
> setting Greek.

Thanks for your response. That's a very strange change. The older versions 
seemed to have the omicron. I would happily change to "Linux Libertine O" if 
it was not for its lack of "expression" when it comes to combining more than 
one diacritic sign.

Regards,
Arash