"use utf8;" is needed if your source code is actually in UTF8 encoding. It does not affect regex matches.
Perl does not have UTF8 semantics, but instead Unicode semantics. The difference is that you work on *encodingless* strings in Perl, and that you use *normal* operators instead of separate ones. The important things are done internally.
Please read the Perl Unicode Tutorial and the Perl Unicode FAQ.
The following ought to suffice:
use Encode qw(decode);
use Unicode::Semantics qw(up);
up($line = decode 'UTF-8', $line);
my $word = qr/\b(?!(?:AND|OR|XOR|NOT)\b)\w+/i;
$line =~ s/($word)\s*($word)/$1 AND $2/g for 1..2;
works around a bug that causes the second half of latin1 to be ignored under certain circumstances.
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:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, 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, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||