<& /elements/tr-input-mask.html, format => '__:__:__:__:__:__', allowed => '0123456789ABCDEFabcdef', %opt, &> <%init> my %opt = @_; my $value = length($opt{curr_value}) ? $opt{curr_value} : $opt{value}; $value =~ s/\W//g; $opt{curr_value} = join(':', $value =~ /../g);