}elsif($opt_protrude){
if(($chars[$i+1]=~m/[$strictly_forbidden_before]/o)
and($chars[$i+2]=~m/[^$strictly_forbidden_before]/o)){
}elsif($opt_protrude){
if(($chars[$i+1]=~m/[$strictly_forbidden_before]/o)
and($chars[$i+2]=~m/[^$strictly_forbidden_before]/o)){