[Haskell-cafe] Has character changed in GHC 6.8?

[Magnus Therning]

On 1/22/08, Ian Lynagh <igloo at earth.li> wrote:
>
> On Tue, Jan 22, 2008 at 03:16:15PM +0000, Magnus Therning wrote:
> > On 1/22/08, Duncan Coutts <duncan.coutts at worc.ox.ac.uk> wrote:
> > >
> > >
> > > On Tue, 2008-01-22 at 09:29 +0000, Magnus Therning wrote:
> > > > I vaguely remember that in GHC 6.6 code like this
> > > >
> > > >   length $ map ord "a string"
> > > >
> > > > being able able to generate a different answer than
> > > >
> > > >   length "a string"
> > >
> > > That seems unlikely.
> >
> >
> > Unlikely yes, yet I get the following in GHCi (ghc 6.6.1, the version
> > currently in Debian Sid):
> >
> > > map ord "a"
> > [97]
> > > map ord "ö"
> > [195,182]
>
> In 6.6.1:
>
> Prelude Data.Char> map ord "ö"
> [195,182]
> Prelude Data.Char> length "ö"
> 2
>
> there are actually 2 bytes there, but your terminal is showing them as
> one character.


Yes, of course, stupid me.  But it is still the UTF-8 representation of "ö",
not Latin-1, and this brings me back to my original question, is this an
intentional change in 6.8?

> map ord "ö"
[246]
> map ord "åɓｚ𝐀"
[229,595,65370,119808]

6.8 produces Unicode code points rather then a particular encoding.

/M
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.haskell.org/pipermail/haskell-cafe/attachments/20080122/98d6bb1b/attachment.htm