[BRLTTY] de.ttb

[Samuel Thibault]

Mario Lang, le Sat 09 Aug 2008 10:55:00 +0200, a écrit :
> Jason White <jason at jasonjgw.net> writes:
> > On Sat, Aug 09, 2008 at 01:30:12AM -0400, Dave Mielke wrote:
> >
> >> >There are other things like certain symbols are kind of duplicated in Unicode.  
> >> >But I cant think of any right now, I'd need to check.
> >
> > As I remember, accented letters are among these: there are so-called
> > "combining" characters that allow the letter and the accent to be specified
> > separately, as well as characters that represent the accented letters as
> > single, combined entities.
> 
> Well, a separate character would mean that one representation uses more
> cells than another, right?  Normalising that sounds wrong.

Yes and no.  The combining character doesn't take room on the screen.
So for instance é (e with acute accent) and é (e + combining acute
accent), although different strings, normalize to the same, and for a
good reason: they appear exactly the same on my screen, occupying only
one column.

> > One solution to this is to "normalize" the Unicode string before it reaches
> > the braille translation functions, so that only one representation is ever
> > used for those characters.
> 
> If DESCCHAR still returns the original character value, I agree.  If not,
> I disagree...  DESCCHAR should always report the actual character...

I agree with you.  The normalization should only happen just before the
output.

Samuel