To me, this says punt the \x construct from Unicode objects altogether. If it is broken, then why try to retain it? I *do* find it useful in the regular string objects. For Unicode, I would totally understand needing to use \u instead. Cheers, -g On Sun, Jul 16, 2000 at 02:14:02PM -0400, Tim Peters wrote: > [/F] > > for maximum compatibility with 8-bit strings and SRE, > > let's change "\x" to mean "binary byte" in unicode string > > literals too. > > [MAL] > > Hmm, this is probably not in sync with C9X (see section 6.4.4.4), > > The behavior of \x in C9X is nearly incomprehensible -- screw it. > > > but then perhaps we should depreciate usage of \xXX in the context > > of Unicode objects altogether. Our \uXXXX notation is far > > superior to what C9X tries to squeeze into \x (IMHO at least). > > \x is a hack inherited from the last version of C, put in back when they > knew they had to do *something* to support "big characters" but had no real > idea what. C9X was not allowed to break anything in the std it built on, so > they kept all the old implementation-defined \x behavior, and made it even > more complicated so it would make some kind sense with the new C9X character > gimmicks. > > Python is stuck trying to make sense out of its ill-considered adoption of > old-C's \x notation too. Letting it mean "a byte" regardless of context > should make it useless enough that people will eventually learn to avoid it > <wink>. > > Note that C9X also has \u and \U notations, and \u in C9X means what it does > in Python, except that C9X explicitly punts on what happens for \u values in > these (inclusive) ranges: > > \u0000 - \u0020 > \u007f - \u009f > \ud800 - \udfff > > \U is used in C9X for 8-digit (hex) characters, deferring to ISO 10646. > > If C9X didn't *have* to keep \x around, I'm sure they would have tossed it. > > > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > http://www.python.org/mailman/listinfo/python-dev -- Greg Stein, http://www.lyra.org/
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