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# $Id: Util.pm,v 1.5 2006/04/30 12:51:55 dgl Exp $
package IRC::Util;
use Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(is_valid_channel is_valid_nickname is_valid_server make_lowercase check_mode match_mask fullhost2nick fullhost2host add_mode del_mode);
use strict;
sub is_valid_channel {
return 0 if length $_[0] > 64;
return 0 if $_[0] =~ /[ ,]/;
return 1 if $_[0] =~ /^[#&]/;
return 0;
}
sub is_valid_nickname {
return 0 if length $_[0] > 32 or length $_[0] < 1;
return 0 if $_[0] =~ / /;
return 0 if $_[0] =~ /^[0-9#&]/;
return 1;
}
sub is_valid_server {
return 0 if $_[0] !~ /\./;
return 0 if $_[0] =~ /[!@]/;
return 0 if $_[0] =~ /[^-A-Za-z0-9\*\._]/;
return 1;
}
sub make_lowercase{
my $lc = shift;
$lc =~ tr/A-Z\[\]\\/a-z\{\}\|/;
return $lc;
}
sub check_mode {
my($mode,$bit) = @_;
return 1 if $mode =~ /\S*\Q$bit\E/;
}
# should really split all the parts up...
sub match_mask {
my($check,$mask) = @_;
$mask = quotemeta $mask;
$mask =~ s/\\\?/./g;
$mask =~ s/\\\*/.*?/g;
return 1 if $check =~ /$mask/;
0;
}
sub fullhost2nick {
my $host = shift;
$host =~ s/!.*$//;
return $host;
}
sub fullhost2host {
my $host = shift;
$host =~ s/^.*?!//;
return $host;
}
sub add_mode{
my($mode,$bit) = @_;
return $mode if $mode =~ /^\S*\Q$bit\E/;
$mode =~ s/^(\S*)/$1$bit/;
return $mode;
}
sub del_mode{
my($mode,$bit) = @_;
return $mode if $mode !~ /^\S*\Q$bit\E/;
$mode =~ s/^(\S*)$bit/$1/;
return $mode;
}
1;
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