mirror of
https://github.com/mikefarah/yq.git
synced 2024-12-19 20:19:04 +00:00
parent
4508bc2dc2
commit
3c222d8707
3
.gitignore
vendored
3
.gitignore
vendored
@ -57,3 +57,6 @@ debian/files
|
|||||||
|
|
||||||
# intellij
|
# intellij
|
||||||
/.idea
|
/.idea
|
||||||
|
|
||||||
|
# vscode
|
||||||
|
.vscode
|
@ -110,7 +110,7 @@ func (s *streamEvaluator) Evaluate(filename string, reader io.Reader, node *Expr
|
|||||||
Node: &dataBucket,
|
Node: &dataBucket,
|
||||||
FileIndex: s.fileIndex,
|
FileIndex: s.fileIndex,
|
||||||
}
|
}
|
||||||
//move document comments into candidate node
|
// move document comments into candidate node
|
||||||
// otherwise unwrap drops them.
|
// otherwise unwrap drops them.
|
||||||
candidateNode.TrailingContent = dataBucket.FootComment
|
candidateNode.TrailingContent = dataBucket.FootComment
|
||||||
dataBucket.FootComment = ""
|
dataBucket.FootComment = ""
|
||||||
|
85
pkg/yqlib/string_evaluator.go
Normal file
85
pkg/yqlib/string_evaluator.go
Normal file
@ -0,0 +1,85 @@
|
|||||||
|
package yqlib
|
||||||
|
|
||||||
|
import (
|
||||||
|
"bytes"
|
||||||
|
"container/list"
|
||||||
|
"errors"
|
||||||
|
"fmt"
|
||||||
|
"io"
|
||||||
|
|
||||||
|
yaml "gopkg.in/yaml.v3"
|
||||||
|
)
|
||||||
|
|
||||||
|
type StringEvaluator interface {
|
||||||
|
Evaluate(expression string, input string, encoder Encoder, leadingContentPreProcessing bool, decoder Decoder) (string, error)
|
||||||
|
}
|
||||||
|
|
||||||
|
type stringEvaluator struct {
|
||||||
|
treeNavigator DataTreeNavigator
|
||||||
|
fileIndex int
|
||||||
|
}
|
||||||
|
|
||||||
|
func NewStringEvaluator() StringEvaluator {
|
||||||
|
return &stringEvaluator{
|
||||||
|
treeNavigator: NewDataTreeNavigator(),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func (s *stringEvaluator) Evaluate(expression string, input string, encoder Encoder, leadingContentPreProcessing bool, decoder Decoder) (string, error) {
|
||||||
|
|
||||||
|
// Use bytes.Buffer for output of string
|
||||||
|
out := new(bytes.Buffer)
|
||||||
|
printer := NewPrinter(encoder, NewSinglePrinterWriter(out))
|
||||||
|
|
||||||
|
InitExpressionParser()
|
||||||
|
node, err := ExpressionParser.ParseExpression(expression)
|
||||||
|
if err != nil {
|
||||||
|
return "", err
|
||||||
|
}
|
||||||
|
|
||||||
|
reader, leadingContent, err := readString(input, leadingContentPreProcessing)
|
||||||
|
if err != nil {
|
||||||
|
return "", err
|
||||||
|
}
|
||||||
|
|
||||||
|
var currentIndex uint
|
||||||
|
decoder.Init(reader)
|
||||||
|
for {
|
||||||
|
var dataBucket yaml.Node
|
||||||
|
errorReading := decoder.Decode(&dataBucket)
|
||||||
|
|
||||||
|
if errors.Is(errorReading, io.EOF) {
|
||||||
|
s.fileIndex = s.fileIndex + 1
|
||||||
|
return out.String(), nil
|
||||||
|
} else if errorReading != nil {
|
||||||
|
return "", fmt.Errorf("bad input '%v': %w", input, errorReading)
|
||||||
|
}
|
||||||
|
|
||||||
|
candidateNode := &CandidateNode{
|
||||||
|
Document: currentIndex,
|
||||||
|
Node: &dataBucket,
|
||||||
|
FileIndex: s.fileIndex,
|
||||||
|
}
|
||||||
|
// move document comments into candidate node
|
||||||
|
// otherwise unwrap drops them.
|
||||||
|
candidateNode.TrailingContent = dataBucket.FootComment
|
||||||
|
dataBucket.FootComment = ""
|
||||||
|
|
||||||
|
if currentIndex == 0 {
|
||||||
|
candidateNode.LeadingContent = leadingContent
|
||||||
|
}
|
||||||
|
inputList := list.New()
|
||||||
|
inputList.PushBack(candidateNode)
|
||||||
|
|
||||||
|
result, errorParsing := s.treeNavigator.GetMatchingNodes(Context{MatchingNodes: inputList}, node)
|
||||||
|
if errorParsing != nil {
|
||||||
|
return "", errorParsing
|
||||||
|
}
|
||||||
|
err = printer.PrintResults(result.MatchingNodes)
|
||||||
|
|
||||||
|
if err != nil {
|
||||||
|
return "", err
|
||||||
|
}
|
||||||
|
currentIndex = currentIndex + 1
|
||||||
|
}
|
||||||
|
}
|
30
pkg/yqlib/string_evaluator_test.go
Normal file
30
pkg/yqlib/string_evaluator_test.go
Normal file
@ -0,0 +1,30 @@
|
|||||||
|
package yqlib
|
||||||
|
|
||||||
|
import (
|
||||||
|
"testing"
|
||||||
|
|
||||||
|
"github.com/mikefarah/yq/v4/test"
|
||||||
|
)
|
||||||
|
|
||||||
|
func TestStringEvaluator_Evaluate_Nominal(t *testing.T) {
|
||||||
|
expected_output := `` +
|
||||||
|
`yq` + "\n" +
|
||||||
|
`---` + "\n" +
|
||||||
|
`jq` + "\n"
|
||||||
|
expression := ".[].name"
|
||||||
|
input := `` +
|
||||||
|
` - name: yq` + "\n" +
|
||||||
|
` description: yq is a portable command-line YAML, JSON and XML processor` + "\n" +
|
||||||
|
`---` + "\n" +
|
||||||
|
` - name: jq` + "\n" +
|
||||||
|
` description: Command-line JSON processor` + "\n"
|
||||||
|
encoder := NewYamlEncoder(2, true, true, true)
|
||||||
|
decoder := NewYamlDecoder()
|
||||||
|
|
||||||
|
result, err := NewStringEvaluator().Evaluate(expression, input, encoder, true, decoder)
|
||||||
|
if err != nil {
|
||||||
|
t.Error(err)
|
||||||
|
}
|
||||||
|
|
||||||
|
test.AssertResult(t, expected_output, result)
|
||||||
|
}
|
@ -33,6 +33,14 @@ func readStream(filename string, leadingContentPreProcessing bool) (io.Reader, s
|
|||||||
return processReadStream(reader)
|
return processReadStream(reader)
|
||||||
}
|
}
|
||||||
|
|
||||||
|
func readString(input string, leadingContentPreProcessing bool) (io.Reader, string, error) {
|
||||||
|
reader := bufio.NewReader(strings.NewReader(input))
|
||||||
|
if !leadingContentPreProcessing {
|
||||||
|
return reader, "", nil
|
||||||
|
}
|
||||||
|
return processReadStream(reader)
|
||||||
|
}
|
||||||
|
|
||||||
func writeString(writer io.Writer, txt string) error {
|
func writeString(writer io.Writer, txt string) error {
|
||||||
_, errorWriting := writer.Write([]byte(txt))
|
_, errorWriting := writer.Write([]byte(txt))
|
||||||
return errorWriting
|
return errorWriting
|
||||||
|
Loading…
Reference in New Issue
Block a user