def parseExpression(self):
left = self.parseTerm()
oplex = self.lexAnalizer.getLex()
leftpoints = left
while (oplex.type == "Operator" or oplex.type
== "Key Word") and oplex.lex.lower() in ['+', '-', 'or', 'xor']:
self.curlex = self.lexAnalizer.nextLex()
right = self.parseTerm()
self.checkNodeType([Node.NullNode], right)
leftpoints = Node.BinOpNode(oplex, [leftpoints], right)
oplex = self.lexAnalizer.getLex()
if (oplex.type == "Operator"
or oplex.type == "Key Word") and oplex.lex.lower() in [
'=', '<>', '<', '>', '>=', '<=', 'in'
]:
self.curlex = self.lexAnalizer.nextLex()
right = self.parseExpression()
self.checkNodeType([Node.NullNode], right)
return Node.BoolOpNode(oplex, [leftpoints], [right])
return leftpoints
