package yqlib import ( "container/list" yaml "gopkg.in/yaml.v3" ) func isTruthy(c *CandidateNode) (bool, error) { node := unwrapDoc(c.Node) value := true if node.Tag == "!!null" { return false, nil } if node.Kind == yaml.ScalarNode && node.Tag == "!!bool" { errDecoding := node.Decode(&value) if errDecoding != nil { return false, errDecoding } } return value, nil } type boolOp func(bool, bool) bool func performBoolOp(op boolOp) func(d *dataTreeNavigator, lhs *CandidateNode, rhs *CandidateNode) (*CandidateNode, error) { return func(d *dataTreeNavigator, lhs *CandidateNode, rhs *CandidateNode) (*CandidateNode, error) { lhs.Node = unwrapDoc(lhs.Node) rhs.Node = unwrapDoc(rhs.Node) lhsTrue, errDecoding := isTruthy(lhs) if errDecoding != nil { return nil, errDecoding } rhsTrue, errDecoding := isTruthy(rhs) if errDecoding != nil { return nil, errDecoding } return createBooleanCandidate(lhs, op(lhsTrue, rhsTrue)), nil } } func orOperator(d *dataTreeNavigator, matchingNodes *list.List, expressionNode *ExpressionNode) (*list.List, error) { log.Debugf("-- orOp") return crossFunction(d, matchingNodes, expressionNode, performBoolOp( func(b1 bool, b2 bool) bool { return b1 || b2 })) } func andOperator(d *dataTreeNavigator, matchingNodes *list.List, expressionNode *ExpressionNode) (*list.List, error) { log.Debugf("-- AndOp") return crossFunction(d, matchingNodes, expressionNode, performBoolOp( func(b1 bool, b2 bool) bool { return b1 && b2 })) } func notOperator(d *dataTreeNavigator, matchMap *list.List, expressionNode *ExpressionNode) (*list.List, error) { log.Debugf("-- notOperation") var results = list.New() for el := matchMap.Front(); el != nil; el = el.Next() { candidate := el.Value.(*CandidateNode) log.Debug("notOperation checking %v", candidate) truthy, errDecoding := isTruthy(candidate) if errDecoding != nil { return nil, errDecoding } result := createBooleanCandidate(candidate, !truthy) results.PushBack(result) } return results, nil }