def p_route_name(self, p):
if p[<NUM_LIT:2>]:<EOL><INDENT>p[<NUM_LIT:0>] = p[<NUM_LIT:1>] + p[<NUM_LIT:2>]<EOL><DEDENT>else:<EOL><INDENT>p[<NUM_LIT:0>] = p[<NUM_LIT:1>]<EOL><DEDENT>
route_name : ID route_path