[Python-3000] raw strings and \u

[Benjamin Peterson]

On Sat, Apr 5, 2008 at 10:00 AM, Guido van Rossum <guido at python.org> wrote:

> :-)
>
> So did the broken version make it into the 3.0a4 release, or did you
> break it after the release?
>
Missed it by 7 revisions! I'm going to add a test for that, though, so it
doesn't happen again.

>
>
> On Sat, Apr 5, 2008 at 7:59 AM, Benjamin Peterson
> <musiccomposition at gmail.com> wrote:
> >
> >
> > On Sat, Apr 5, 2008 at 9:58 AM, Guido van Rossum <guido at python.org>
> wrote:
> > > Thanks -- that was quick!
> > Well, I was the guilty party...
> >
> >
> > >
> > >
> > >
> > >
> > >
> > > On Sat, Apr 5, 2008 at 7:50 AM, Benjamin Peterson
> > > <musiccomposition at gmail.com> wrote:
> > > >
> > > >
> > > >
> > > >
> > > > On Sat, Apr 5, 2008 at 9:44 AM, Guido van Rossum <guido at python.org>
> > wrote:
> > > > >
> > > > > On Fri, Apr 4, 2008 at 11:18 PM, Neal Norwitz <nnorwitz at gmail.com>
> > wrote:
> > > > > > I just checked in r62163 with this change:
> > > > > >  -            rc = os.system(r"ml64 -c -Foms\uptable.obj
> > > > ms\uptable.asm")
> > > > > >  +            rc = os.system("ml64 -c -Foms\\uptable.obj
> > > > ms\\uptable.asm")
> > > > > >
> > > > > >  What should happen with raw unicode strings that contain a \u?
>  The
> > > > > >  old code above was generating:
> > > > > >   SyntaxError: (unicode error) truncated \uXXXX
> > > > > >
> > > > > >  Is that correct?  Or should the \u be translated literally?
> > > > >
> > > > > Oops, there's a regression!!!
> > > > >
> > > > > In 2.x, \uDDDD and \UDDDDDDDD are interpreted as Unicode escapes
> in
> > > > > raw Unicode strings. That was a mistake, but we can't fix it
> (except
> > > > > when using "from __future__ import unicode_literals"). In 3.0, \u
> or
> > > > > \U in a raw string should have no special meaning -- it's just a
> > > > > backslash followed by 'u' or 'U'.
> > > > >
> > > > > This was fixed in 3.0a3. It seems to have reverted to the old
> (2.x)
> > > > > behavior in 3.0a4.
> > > > >
> > > > > THIS MUST BE FIXED!
> > > > Done in r62165.
> > > > >
> > > > >
> > > > > --
> > > > >
> > > > > --Guido van Rossum (home page: http://www.python.org/~guido/<http://www.python.org/%7Eguido/>
> )
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > _______________________________________________
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> > > > >
> > > > > Unsubscribe:
> > > >
> >
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> > > > >
> > > >
> > > >
> > > >
> > > > --
> > > > Cheers,
> > > > Benjamin Peterson
> > >
> > >
> > >
> > > --
> > >
> > >
> > >
> > > --Guido van Rossum (home page: http://www.python.org/~guido/<http://www.python.org/%7Eguido/>
> )
> > >
> >
> >
> >
> > --
> > Cheers,
> > Benjamin Peterson
>
>
>
> --
> --Guido van Rossum (home page: http://www.python.org/~guido/<http://www.python.org/%7Eguido/>
> )
>



-- 
Cheers,
Benjamin Peterson
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