Hi Marko,

On 20 Aug 2013, at 10:52, Marco Patzer <lists@homerow.info> wrote:

> 
> I checked a different version of the font (1.000) and it works. It
> seems you're using a version not containing an em dash.


Thanks for looking into this. Finder reports that my version of Hoefler is 8.0d2e1. Interestingly, bringing up the font panel, selecting Hoefler text followed by show characters (gear wheel in bottom left of font panel), shows the the em dash is present in the font.

Additionally, the following, typeset with lualatex, uses hoefler and does have the emdash. The resulting pdf file when intorrogated using pdffont  reports

> pdffont lat_hoef.pdf
 HoeflerText-Regular (Type0)


\documentclass{article}
\usepackage{xltxtra}
\defaultfontfeatures{Mapping=tex-text}
\setromanfont 
[Scale=1.05,ItalicFeatures={Contextuals={NoLineFinal,NoLineInitial}}] 
{Hoefler Text}

\begin{document}

This is hoefler at 10pt. This is an em dash---ok!

\end{document}

So, is there something wrong with the ConTeXt mapping?

__martin