Nick Ing-Simmons wrote:
Paul Bijnens <paul(_dot_)bijnens(_at_)xplanation(_dot_)com> writes:
Can anyone explain what I'm doing wrong?
I was about to contact the author of HTML::Entities, when
I noticed HTML::Parser 3.45 was released on 6 Jan 2005.
Installed it -- and guess what? Now it works as expected!
I guess Gisle is one of those wizards that solve problems
before you even ask them :-) Thanks, Gisle!!!
But that does not yet solve my problem with Plucene, and others,
where I have similar problems with losing utf8 flags.
Debugging utf8-flags is difficult, partly because my
understanding of the issue is not clear either.
As I recall HTML::Entities has a build-time option as to whether it handles
Unicode - do you know if yours has that turned on?
What locale are you in (i.e. is it something that has € as a native
8-bit coding (Windows 1251 or iso-8859-15 say)?
I have this recurring problem of strings not being flagged
as utf8, when -- I believe -- they should be.
One of those cases is in decode_entities() from the module
HTML::Entities, but I have other occurances too (e.g. in Plucene).
When I run this program:
########### cut here
#!/usr/bin/perl
use HTML::Entities;
use Encode;
print "This is perl ", $], "\n";
$s = "€";
$t = decode_entities($s);
$u = decode("utf8", $t, Decode::FB_CROAK);
print "t: ", Encode::is_utf8($t) ? "is" : "not", " utf8", "\n";
print "u: ", Encode::is_utf8($u) ? "is" : "not", " utf8", "\n";
print "t: ", ($t eq "\x{20ac}") ? "is" : "not", " Eurosign\n";
print "u: ", ($u eq "\x{20ac}") ? "is" : "not", " Eurosign\n";
########### cut here
I get this output:
This is perl 5.008005
t: not utf8
u: is utf8
t: not Eurosign
u: is Eurosign
I would expect that $t does have the utf8 flag set,
as indicated in the manpage of HTML::Entities :
decode_entities( $string )
This routine replaces HTML entities found in the
$string with the corresponding ISO-8859-1 character,
and if possible (under perl 5.8 or later) will replace
to Unicode characters. Unrecognized entities are left
alone.
Why do I have to force the utf8 flag using decode("utf8",..) ?
Well that does suggest what you expect I agree.
One of my guesses is that the problem lies in XS-processing of strings
where the utf8 flag is not set correctly. True?
Certainly possible - suggest you contact author of HTML:Entities
It is also possible it is left encoded deliberately.
--
Paul Bijnens, Xplanation Tel +32 16 397.511
Technologielaan 21 bus 2, B-3001 Leuven, BELGIUM Fax +32 16 397.512
http://www.xplanation.com/ email:
Paul(_dot_)Bijnens(_at_)xplanation(_dot_)com
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