Re: Regexp failure with utf8-flagged string and byte-flagged pattern

> Moin,
>
> On Thursday 20 September 2007 23:44:46 sreziccpan.org
wrote:
>> # New Ticket Created by  sreziccpan.org
>> # Please include the string:  [perl #45605]
>> # in the subject line of all future correspondence
about this issue.
>> # <URL: h
ttp://rt.perl.org/rt3/Ticket/Display.html?id=45605 >
>>
>>
>> This is a bug report for perl from sreziccpan.org,
>> generated with the help of perlbug 1.36 running
under perl 5.10.0.
>>
>>
>>
------------------------------------------------------------
-----
>> The script below works as expected until perl 5.8.8
(i.e. it prints
>> "1").
>> With perl5.10.0 the pattern does not match
anymore.
>>
>> Regards,
>>     Slaven
>>
>> #!perl
>> $string = 'Öschel';
>> utf8::upgrade($string);
>> warn $string =~ m{(?:Ö|&Ouml;)schel};
>> __END__
>
> I don't see "use utf8;" in your example, so,
in what encoding is the
> script?

If "use utf8" is missing, then the script encoding
is usually iso-8859-1.

> Likewise, that means, in what encoding is the $string
and in what is the
> regexp?

The "Ö" is in both cases the byte 0xd6.

Regards,
    Slaven

MOIN,

ON FRIDAY 21 SEPTEMBER 2007 16:55:59 SLAVENREZIC.DE
WROTE:
> > MOIN,
[SNIP]
> > I DON'T SEE "USE UTF8;" IN YOUR EXAMPLE,
SO, IN WHAT ENCODING IS THE
> > SCRIPT?
>
> IF "USE UTF8" IS MISSING, THEN THE SCRIPT
ENCODING IS USUALLY ISO-8859-1.

AH. (DOH!)

> > LIKEWISE, THAT MEANS, IN WHAT ENCODING IS THE
$STRING AND IN WHAT IS
> > THE REGEXP?
>
> THE "Ö" IS IN BOTH CASES THE BYTE 0XD6.

AH. BUT YOUR EMAIL SAYS:

 RETURN-PATH: 
 
<PERL5-PORTERS-RETURN-128928-NOSPAM-ABUSE=BLOODGATE.COMPERL.ORG>
 [SNIP]
 MIME-VERSION: 1.0
 CONTENT-TYPE: TEXT/PLAIN;
   CHARSET="UTF-8"
 CONTENT-TRANSFER-ENCODING: 8BIT
 X-RT-ORIGINAL-ENCODING: UTF-8

NOTE THE MAIL ENCODINGS. IF ONE JUST COPY&PASTES YOUR
EXAMPLE, ONE ENDS UP 
WITH A UTF-8 ENCODED SCRIPT 

ALL THE BEST,

TELS

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