Bug in Firefox. It should work as you describe.

As for the composition: first of all, work on characters, or at least or codepoints, not on utf-8 bytes. Second, you want Unicode Normal Form C (see Unicode::Normalize), so that you can write:

use Unicode::Normalize;
use charnames ':full'; # this is just to make things easier in this ex
+ample

binmode(STDOUT,':utf8'); # this to make 'print' output utf-8 bytes

my $a="O\N{COMBINING DIAERESIS}";
my $b=NFC($a);

print length($a),$a,"\n";
print length($b),$b,"\n";

[download]

Will print:

2Ö
1Ö

[download]

(more or less, depending on PM's escaping mechanisms)

-- 
        dakkar - Mobilis in mobile

Most of my code is tested...

Perl is strongly typed, it just has very few types (Dan)

In reply to Re: UTF-8 and browsers - Update by dakkar
in thread UTF-8 and browsers - Update by amonroy

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.