def _select_expression(self):
"""
SelectExpression : SELECT Condition (Expression)
"""
self.consume(SELECT)
condition = self._condition()
# Bool operation
bool_op = None
if self.token.type in (AND, OR):
bool_op = BoolOp()
bool_op.conditions.append(condition)
while self.token.type in (AND, OR):
op = self.token.value
self.consume(KEYWORDS.get(op))
bool_op.ops.append(op)
bool_op.conditions.append(self._condition())
if bool_op is not None:
condition = bool_op
# FIXME: puede venir otra CONDITION
self.consume(LPAREN)
expression = self._expression()
self.consume(RPAREN)
return SelectExpr(condition, expression)
def _select_expression(self):
"""
SelectExpression : SELECT Condition (Expression)
"""
self.consume(SELECT)
condition = self._condition()
# Bool operation
bool_op = None
if self.token.type in (AND, OR):
bool_op = BoolOp()
bool_op.conditions.append(condition)
while self.token.type in (AND, OR):
op = self.token.value
self.consume(KEYWORDS.get(op))
bool_op.ops.append(op)
bool_op.conditions.append(self._condition())
if bool_op is not None:
condition = bool_op
# FIXME: puede venir otra CONDITION
self.consume(LPAREN)
expression = self._expression()
self.consume(RPAREN)
return SelectExpr(condition, expression)
def _binary_expression(self, left_node):
"""
BinaryExpression : (Expression) BinaryOp (Expression)
"""
operator = self.token
self.consume(KEYWORDS.get(operator.value))
right_node = self._expression()
return BinaryOp(left_node, operator, right_node)
def _binary_expression(self, left_node):
"""
BinaryExpression : (Expression) BinaryOp (Expression)
"""
operator = self.token
self.consume(KEYWORDS.get(operator.value))
right_node = self._expression()
return BinaryOp(left_node, operator, right_node)
