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71 lines
1.3 KiB
Go
71 lines
1.3 KiB
Go
package yaml
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// TODO: yaml type eval? walk eval?
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import (
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"embed"
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"errors"
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"io"
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"github.com/wader/fq/format"
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"github.com/wader/fq/internal/gojqex"
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"github.com/wader/fq/pkg/bitio"
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"github.com/wader/fq/pkg/decode"
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"github.com/wader/fq/pkg/interp"
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"github.com/wader/fq/pkg/scalar"
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"gopkg.in/yaml.v3"
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)
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//go:embed yaml.jq
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var yamlFS embed.FS
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func init() {
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interp.RegisterFormat(
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format.YAML,
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&decode.Format{
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Description: "YAML Ain't Markup Language",
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ProbeOrder: format.ProbeOrderTextFuzzy,
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Groups: []*decode.Group{format.Probe},
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DecodeFn: decodeYAML,
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Functions: []string{"_todisplay"},
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})
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interp.RegisterFS(yamlFS)
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interp.RegisterFunc0("to_yaml", toYAML)
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}
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func decodeYAML(d *decode.D) any {
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br := d.RawLen(d.Len())
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var r any
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yd := yaml.NewDecoder(bitio.NewIOReader(br))
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if err := yd.Decode(&r); err != nil {
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d.Fatalf("%s", err)
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}
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if err := yd.Decode(new(any)); !errors.Is(err, io.EOF) {
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d.Fatalf("trialing data after top-level value")
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}
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var s scalar.Any
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s.Actual = gojqex.Normalize(r)
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switch s.Actual.(type) {
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case map[string]any,
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[]any:
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default:
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d.Fatalf("root not object or array")
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}
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d.Value.V = &s
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d.Value.Range.Len = d.Len()
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return nil
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}
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func toYAML(_ *interp.Interp, c any) any {
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b, err := yaml.Marshal(gojqex.Normalize(c))
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if err != nil {
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return err
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}
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return string(b)
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}
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