code
Perl instructions to test the value. $_ contains the value to test. $self contains the value object. Use
with care. Optional.Typestring.msg
Warning message to show user. "$_" contains the bad value. Example "value $_ is bad". Leave blank or
undef to use generated message. Optional.Typestring.fix
Perl instructions to fix the value. These instructions may be triggered by user. $_ contains the value to
fix. $_ is stored as the new value once the instructions are done. $self contains the value object. Use
with care. Optional.Typestring.