ieml/grammar/paths/parser/parser.py
def p_path_sum(self, p):
        """ path_sum : ctx_path
                  | path_sum PLUS ctx_path"""
        if len(p) == 2:
            p[0] = [p[1]]
        else:
            p[0] = p[1] + [p[3]]
def p_path_sum(self, p):
        """ path_sum : ctx_path
                  | path_sum PLUS ctx_path"""
        if len(p) == 2:
            p[0] = [p[1]]
        else:
            p[0] = p[1] + [p[3]]
def p_path_sum ( self , p ) : if len ( p ) == 2 : p [ 0 ] = [ p [ 1 ] ] else : p [ 0 ] = p [ 1 ] + [ p [ 3 ] ]
path_sum : ctx_path
                  | path_sum PLUS ctx_path
path_sum : ctx_path | path_sum PLUS ctx_path