public boolean canAppendMatch() {for (Head head : heads) {if (head != LastHead.INSTANCE) {return true;}}return false;}

public boolean canAppendMatch ( ) { for ( Head head : heads ) { if ( head != LastHead . INSTANCE ) { return true ; } } return false ; }
public virtual bool CanAppendMatch(){for (int i = 0; i < heads.Count; i++){if (heads[i] != LastHead.INSTANCE){return true;}}return false;}
