XeTeX ⇒ Fontspec: what is the meaning of Mapping=tex-text?

[efroselli]

Hello again to the forum,

I'm still investigating the compilation problem with XeTeX on our production machine.

In all the preambles of the Lyx source files, I have blindly included the lines:

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Code, edit and compile here:

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\usepackage[T1]{fontenc}
\usepackage{xcolor}
\usepackage{graphics}
\usepackage[cm-default]{fontspec}
\usepackage[no-sscript]{xltxtra}
\usepackage{xunicode}
\setmainfont[Mapping=tex-text]{Calibri}
\setsansfont{Calibri}
 
 
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Run LaTeX here

because I am following examples that I see in documentation, but which are not extensively explained (or comprehensible to me).

Perhaps our compilation problems are coming from something in here. I read about people having problems with Fontspec after upgrading MiKTeX and that this could have something to do with mappings. So what are mappings and what options have I for using them?

And while I'm on it, what is the meaning of the other keys, [cm-default] in fontspec and [no-sscript] in xlxtra? Could a compilation problem come from there?

Thanks to the wise people who can demystify me.

EFR

[localghost]

What about just reading the relevant parts of the fontspec manual? Feeding the search function of your PDF viewer with the corresponding keywords should lead you to the places where this option is described.


Thorsten

[efroselli]

I have read them. I can't make head or tail of them.

"Using the tex-text mapping is also equivalent to writing Ligatures=TeX. The use of
the latter syntax is recommended for better compatibility with LuaTEX documents."

Much the wiser!

EFR

[cgnieder]

I have read them. I can't make head or tail of them.

"Using the tex-text mapping is also equivalent to writing Ligatures=TeX. The use of
the latter syntax is recommended for better compatibility with LuaTEX documents."

Well, it enables TeX Ligatures such as ---. Compare

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Code, edit and compile here:

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\documentclass{article}
\usepackage{fontspec}
\setmainfont{Calibri}
\begin{document}
A--Z
\end{document}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Run LaTeX here

with

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Code, edit and compile here:

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\documentclass{article}
\usepackage{fontspec}
\setmainfont[Ligatures=TeX]{Calibri}
\begin{document}
A--Z
\end{document}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Run LaTeX here

Regards