[luatex] Hyphenation in plain TeX

[Khaled Hosny]

On Fri, Oct 08, 2010 at 12:59:45PM +0200, Reinhard Kotucha wrote:
> On 8 October 2010 Mojca Miklavec wrote:
> 
>  > Now imagine user A using both German and French patterns. When he
>  > switches from German to French - should we switch all the German
>  > lccodes for äöü back to undefined? If we don't, there's a chance that
>  > the user will get different hyphenation for French (let's say that the
>  > text contains a name with some German letters) depending on whether he
>  > was typesetting a French-only or mixed language document.
>  > 
>  > Now imagine user B using some package that deals with Unicode and sets
>  > all the lccodes for the whole Unicode range. If we do change the
>  > lccodes back to undefined when switching from German to French, the
>  > user will have all the letters for the whole Unicode range properly
>  > defined, except for some umlauts which we modified without user's
>  > consent.
> 
> Now imagine user C is writing in Vietnamese.  There are no patterns
> for Vietnamese, but \uccode/\lccode values have to be set somewhere.

And how bad is that?

-- 
 Khaled Hosny
 Arabic localiser and member of Arabeyes.org team
 Free font developer