def exitObservationExpressionOr(
self, ctx: STIXPatternParser.ObservationExpressionOrContext):
logger.debug("{} {} {}".format("ObservationExpressionOr", ctx,
ctx.getText()))
if ctx.OR(): # Check if there's OR'd Observation Expressions
expr2 = self.pop()
expr1 = self.pop()
operator = ObservationOperators.Or
self.push(CombinedObservationExpression(expr1, expr2, operator))
def exitObservationExpressions(
self, ctx: STIXPatternParser.ObservationExpressionsContext):
logger.debug("{} {} {}".format("ObservationExpressions", ctx,
ctx.getText()))
if ctx.FOLLOWEDBY():
expr2 = self.pop()
expr1 = self.pop()
operator = ObservationOperators.FollowedBy
self.push(CombinedObservationExpression(expr1, expr2, operator))
def exitObservationExpressionAnd(
self, ctx: STIXPatternParser.ObservationExpressionAndContext):
logger.debug("{} {} {}".format("ObservationExpressionAnd", ctx,
ctx.getText()))
if ctx.AND():
expr2 = self.pop()
expr1 = self.pop()
operator = ObservationOperators.And
self.push(CombinedObservationExpression(expr1, expr2, operator))