mirror of https://github.com/mikefarah/yq.git
51 lines
1.3 KiB
Go
51 lines
1.3 KiB
Go
package yqlib
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import (
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"container/list"
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yaml "gopkg.in/yaml.v3"
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)
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type recursiveDescentPreferences struct {
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TraversePreferences traversePreferences
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RecurseArray bool
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}
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func recursiveDescentOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
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var results = list.New()
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preferences := expressionNode.Operation.Preferences.(recursiveDescentPreferences)
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err := recursiveDecent(d, results, context, preferences)
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if err != nil {
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return Context{}, err
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}
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return context.ChildContext(results), nil
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}
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func recursiveDecent(d *dataTreeNavigator, results *list.List, context Context, preferences recursiveDescentPreferences) error {
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for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
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candidate := el.Value.(*CandidateNode)
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candidate.Node = unwrapDoc(candidate.Node)
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log.Debugf("Recursive Decent, added %v", NodeToString(candidate))
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results.PushBack(candidate)
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if candidate.Node.Kind != yaml.AliasNode && len(candidate.Node.Content) > 0 &&
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(preferences.RecurseArray || candidate.Node.Kind != yaml.SequenceNode) {
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children, err := splat(d, context.SingleChildContext(candidate), preferences.TraversePreferences)
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if err != nil {
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return err
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}
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err = recursiveDecent(d, results, children, preferences)
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if err != nil {
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return err
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}
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}
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}
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return nil
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}
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