Re: [emacs-bidi] debugging visual-to-logical

[Roozbeh Pournader]

On Wed, 21 Nov 2001, Yair Friedman (Jerusalem) wrote:

> Alex Schroeder <address@hidden> writes:
> 
> > Personally I don't think it makes much sense to compare things if some
> > implementations use different tables.  Is there a really good reason
> > to switch from the bidi types assigned in UnicodeData.txt to the one
> > the Reference Implementation is using?
> 
> Can we just ask Unicode guys why this change exists instead of they to
> guess?

Considering myself a half-Unicode guy (participating in two of Unicode
internal lists, 'unicore' and 'bidi'), these are there to have a
representative of each of the classes in the printable ASCII range. You
see that there is no AL or AN in the 0x20-0x7E range, for example, so you
need to change some of them to be able to test everything.

There is dispute over tables that should be used for these ASCII mnemonics
(even the two reference implementations use different tables), and the
'bidi' mailing list people have been asked by Unicode Technical Committee
to decide on something for this.

roozbeh