regular expressions and the LOCALE flag
bazwal at ftml.net
Tue Aug 3 21:40:01 CEST 2010
On 03/08/10 19:40, MRAB wrote:
> Baz Walter wrote:
>> the python docs say that re.LOCALE makes certain character classes
>> "dependent on the current locale".
> re.LOCALE just passes the character to the underlying C library. It
> really only works on bytestrings which have 1 byte per character.
the re docs don't specify 8-bit encodings: they just refer to the
> And, BTW, none of your examples pass a UTF-8 bytestring to re.findall:
> all those string literals starting with the 'u' prefix are Unicode
not sure what you mean by this: if the string was encoded as utf8, '\w'
still wouldn't match any of the non-ascii characters.
> Locale encodings are more trouble than they're worth. Unicode is better.
yes, i'm really just trying to decide whether i should offer 'locale' as
an option in my program. given the unintuitive way re.LOCALE works, i'm
not sure that i should.
are you saying that it only really makes sense for *bytestrings* to be
used with re.LOCALE?
if so, the re docs certainly don't make that clear.
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