Am Wed, 14 Mar 2012 16:29:42 +0000 schrieb d fulano:
>>\defaultfontfeatures{Mapping=tex-text}
>>
>>informs the XeTeX engine to use the standard ligatures, as TeX would do by
>>default.
> Many thanks for the prompt reply! But this is exactly my
> question:: how do I determine what are the "standard ligatures"
> in a font?
Peter has mislead you: Mapping=tex-text doesn't activate standard
ligatures in the sense you probably mean. It will activate some
"fake" ligatures like "--" to en-dash and "---" to em-dash which are
standard in the TeX-world but nowhere else, and which are not real
ligatures.
To find out which real ligatures a font has you probably will have
to open it in a font editor like fontforge and inspect the ligature
tables. I don't think that is possible to do it with xetex directly
(but it could be possible with luatex/luaotfload).
--
Ulrike Fischer
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