[XeTeX] Hyphenation question

[Yves Codet]

Le 13 oct. 06 à 17:13, <jropers at freesurf.fr> a écrit :

> Why is it that words with an 'apostrophe' such as "l'utilisation"  
> are not
> hyphenated by xelatex unless I manually place the hyphenation point  
> for all
> instances of the word "l'utili-sation".

No idea about this. I never had such an issue, if I remember well.

> When I try to put once and for all "l'utili-sation" in an \hyphenation
> list, I get an error message "Not a letter".

I suppose that it's the apostrophe which is "not a letter". You could  
try:

\hyphenation{u-ti-li-sa-tion}

Regards,

Yves