
IRC::Toolkit::Case - IRC case-folding utilities

use IRC::Toolkit::Case;
my $lower = lc_irc( $string, 'rfc1459' );
my $upper = uc_irc( $string, 'ascii' );
if (eq_irc($first, $second, 'strict-rfc1459')) {
...
}

IRC case-folding utilities.
IRC daemons typically announce their casemap in ISUPPORT (via the CASEMAPPING directive). This should be one of rfc1459, strict-rfc1459, or ascii:
'ascii' a-z --> A-Z
'rfc1459' a-z{}|^ --> A-Z[]\~ (default)
'strict-rfc1459' a-z{}| --> A-Z[]\
Takes a string and an optional casemap.
Returns the lowercased string.
Takes a string and an optional casemap.
Returns the uppercased string.
Takes a pair of strings and an optional casemap.
Returns boolean true if the strings are equal (per the rules specified by the given casemap).

Jon Portnoy <avenj@cobaltirc.org>
Inspired by IRC::Utils, copyright Chris Williams, Hinrik et al