[XeTeX]   in XeTeX

[Petr Tomasek]

On Sat, Nov 12, 2011 at 06:36:47PM +0100, Zdenek Wagner wrote:
> 2011/11/12 Petr Tomasek <tomasek at etf.cuni.cz>:
> > On Fri, Nov 11, 2011 at 03:26:36PM +0100, Le Farfadet Spatial wrote:
> >>
> >> Hello everybody out there!
> >>
> >> On 11/11/2011 15:11, Zdenek Wagner wrote:
> >> >How does XeTeX convert \language to the rules
> >>
> >> As far as I know, the language is a parameter transmitted to packages
> >> that have different rules depending on the language used. It also
> >> affects, for instance, the way punctuation is composed.
> >>
> >> >for inserting
> >> >nonbreakable spaces after nonsyllabic prepositions in Czech and
> >> >Slovak?
> >>
> >> In some cases, it is possible that XeTeX does not have a way to know
> >> that a non breakable space is needed. In such cases, use tilda (~).
> >
> > Why not NBSP which is standartized?
> >
> Because we need a space that can be stretched or shrinked. Glyphs in
> fonts have fixed width and an NBSP glyph may not be present in all
> fonts. In all formats ~ is active as default and defined (most
> probably) as \nobreak\space which is what we need in TeX.

Why not to use U+00a0 in the same way by default? (Personally, I always
make ~ not active when writing my own macros because it contradicts
the Unicode standard...)

> >> >How does it know that I am in "verbatim" mode and the
> >> >nonbreakable spaces must not be used?
> >>
> >> When you are using verbatim mode, it means that you ask XeTeX not to do
> >> the processing it usually does, but just to print the characters that
> >> are given inside the verbatim environment. Therefore, if you put a
> >> unicode symbol in a verbatim environment, the standard behaviour is to
> >> print this symbol. When you put a tilda in verbatim environment, the
> >> expected result is a tilda. If you do not want a character to appear in
> >> a verbatim environment, just do not put it in.
> >>
> >>     Best regards.
> >>
> >>                                     Yoann
> >>
> >> --
> >> L'antre du farfadet :
> >> http://le.farfadet.spatial.free.fr/
> >> Textes, musiques et peintures
> >>
> >>
> >> --------------------------------------------------
> >> Subscriptions, Archive, and List information, etc.:
> >>  http://tug.org/mailman/listinfo/xetex
> >
> > --
> > Petr Tomasek <http://www.etf.cuni.cz/~tomasek>
> > Jabber: butrus at jabbim.cz
> >
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > EA 355:001  DU DU DU DU
> > EA 355:002  TU TU TU TU
> > EA 355:003  NU NU NU NU NU NU NU
> > EA 355:004  NA NA NA NA NA
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >
> >
> >
> >
> > --------------------------------------------------
> > Subscriptions, Archive, and List information, etc.:
> >  http://tug.org/mailman/listinfo/xetex
> >
> 
> 
> 
> -- 
> Zdeněk Wagner
> http://hroch486.icpf.cas.cz/wagner/
> http://icebearsoft.euweb.cz
> 
> 
> 
> --------------------------------------------------
> Subscriptions, Archive, and List information, etc.:
>   http://tug.org/mailman/listinfo/xetex
> 

-- 
Petr Tomasek <http://www.etf.cuni.cz/~tomasek>
Jabber: butrus at jabbim.cz

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
EA 355:001  DU DU DU DU
EA 355:002  TU TU TU TU
EA 355:003  NU NU NU NU NU NU NU
EA 355:004  NA NA NA NA NA
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~