private int tr_70(char ch)
    {
        if(chin(ch,'&','.')) return 110;
        if(cheq(ch,':')) return 38;
        if(cheq(ch,'/')) return 72;
        if(cheq(ch,'%')) return 134;
        if(chin(ch,' ','$')) return 110;
        if(chin(ch,'0','9')) return 110;
        if(cheq(ch,'\n')) return 67;
        if(cheq(ch,'\t')) return 110;
        if(chin(ch,';','~')) return 110;
        return 0;
    }