ieml/dictionary/script/parser/parser.py
def p_sum_lvl_0(self, p):
        """ sum_lvl_0 : script_lvl_0
                    | script_lvl_0 PLUS sum_lvl_0"""
        if len(p) == 4:
            p[3].append(p[1])
            p[0] = p[3]
        else:
            p[0] = [p[1]]
def p_sum_lvl_0(self, p):
        """ sum_lvl_0 : script_lvl_0
                    | script_lvl_0 PLUS sum_lvl_0"""
        if len(p) == 4:
            p[3].append(p[1])
            p[0] = p[3]
        else:
            p[0] = [p[1]]
sum_lvl_0 : script_lvl_0
                    | script_lvl_0 PLUS sum_lvl_0