mirror of https://github.com/mikefarah/yq.git
71 lines
1.9 KiB
Go
71 lines
1.9 KiB
Go
package yqlib
|
|
|
|
import (
|
|
"container/list"
|
|
"fmt"
|
|
|
|
"gopkg.in/yaml.v3"
|
|
)
|
|
|
|
type OperatorHandler func(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error)
|
|
|
|
func UnwrapDoc(node *yaml.Node) *yaml.Node {
|
|
if node.Kind == yaml.DocumentNode {
|
|
return node.Content[0]
|
|
}
|
|
return node
|
|
}
|
|
|
|
func EmptyOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
|
|
return list.New(), nil
|
|
}
|
|
|
|
func PipeOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
|
|
lhs, err := d.GetMatchingNodes(matchingNodes, pathNode.Lhs)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return d.GetMatchingNodes(lhs, pathNode.Rhs)
|
|
}
|
|
|
|
func createBooleanCandidate(owner *CandidateNode, value bool) *CandidateNode {
|
|
valString := "true"
|
|
if !value {
|
|
valString = "false"
|
|
}
|
|
node := &yaml.Node{Kind: yaml.ScalarNode, Value: valString, Tag: "!!bool"}
|
|
return &CandidateNode{Node: node, Document: owner.Document, Path: owner.Path}
|
|
}
|
|
|
|
func nodeToMap(candidate *CandidateNode) *list.List {
|
|
elMap := list.New()
|
|
elMap.PushBack(candidate)
|
|
return elMap
|
|
}
|
|
|
|
func LengthOperator(d *dataTreeNavigator, matchMap *list.List, pathNode *PathTreeNode) (*list.List, error) {
|
|
log.Debugf("-- lengthOperation")
|
|
var results = list.New()
|
|
|
|
for el := matchMap.Front(); el != nil; el = el.Next() {
|
|
candidate := el.Value.(*CandidateNode)
|
|
var length int
|
|
switch candidate.Node.Kind {
|
|
case yaml.ScalarNode:
|
|
length = len(candidate.Node.Value)
|
|
case yaml.MappingNode:
|
|
length = len(candidate.Node.Content) / 2
|
|
case yaml.SequenceNode:
|
|
length = len(candidate.Node.Content)
|
|
default:
|
|
length = 0
|
|
}
|
|
|
|
node := &yaml.Node{Kind: yaml.ScalarNode, Value: fmt.Sprintf("%v", length), Tag: "!!int"}
|
|
lengthCand := &CandidateNode{Node: node, Document: candidate.Document, Path: candidate.Path}
|
|
results.PushBack(lengthCand)
|
|
}
|
|
|
|
return results, nil
|
|
}
|