Don't use this class directly... its name may change in the future! Instead, ask Mail::Field for new instances based on the field name!
use Mail::Field;
use MIME::Head;
# Create an instance from some text:
$field = Mail::Field->new('Content-disposition', $text);
# Inline or attachment?
$type = $field->type;
# Recommended filename?
$filename = $field->filename;