NAME

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

SYNOPSIS

use IRC::Toolkit::Case;

my $lower = lc_irc( $string, 'rfc1459' );

my $upper = uc_irc( $string, 'ascii' );

if (eq_irc($first, $second, 'strict-rfc1459')) {
  ...
}

DESCRIPTION

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[]\

If told to convert/compare an unknown casemap, these functions will warn and default to RFC1459 rules.

If you're building a class that tracks an IRC casemapping and manipulates strings accordingly, you may also want to see IRC::Toolkit::Role::CaseMap.

lc_irc

Takes a string and an optional casemap.

Returns the lowercased string.

uc_irc

Takes a string and an optional casemap.

Returns the uppercased string.

eq_irc

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).

AUTHOR

Jon Portnoy <avenj@cobaltirc.org>

Inspired by IRC::Utils, copyright Chris Williams, Hinrik et al