On Tue, 25 Nov 2014, Dmitry Stogov wrote:

> On Tue, Nov 25, 2014 at 1:00 PM, Andrea Faulds <a...@ajf.me> wrote:
> 
> >
> > > On 25 Nov 2014, at 08:33, Dmitry Stogov <dmi...@zend.com> wrote:
> > >
> > > May be I misunderstood something, but why to introduce unicode escapes
> > if PHP engine doesn't support Unicode.
> >
> > We don't have Unicode strings which are made of codepoints rather than
> > bytes, sure. But we do usually treat these strings as UTF-8. The idea of
> > doing this in a language without Unicode strings isn't new, C/C++ have the
> > u8"" syntax for making UTF-8 strings.
> >
> 
> u8"string" tells that the whole string is UTF-8 encoded.
> Your escape Unicode proposal  assumes just UTF-8 codepoint, but the whole
> string encoding is still undefined.
> 
> 
> >
> > > Always converting such escapes into UTF-8 encoding, doesn't make any
> > sense for people who use other encodings for output, databases, etc.
> >
> > If you're using other encodings, why do you want to use a Unicode
> > codepoints? Most Unicode codepoints will not supported by another character
> > set.
> >
> 
> Agree, this Unicode escapes are not going to be used for anything 
> except UTF-8 encoded strings. I'm not completely against it. It's just 
> an incomplete solution.

I think "incomplete" nails it on the head. Without "proper" Unicode 
support in the parser, compiler and string function semantics, having 
these escape codes doesn't really do a lot for us. I now think it would 
fit better just as part of the "UString" idea - although I still need to 
write my reservations and recommendations down about that too.

cheers,
Derick

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