mirror of
https://github.com/wader/fq.git
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7c5215347d
Remove bitio.Buffer layer. bitio.Buffer was a kitchen sink layer with helpers now it's just a buffer and most functions have been moved to decode instead. bitio package now only have primitive types and functions simialar to standard library io and bytes packages. Make nearly eveything internally use bitio.Bit* interfaces so that slicing work correctly this will also make it possible to start experimenting with more complicated silcing helpers, ex things like: breplace(.header.bitrate; 123) to get a new buffer with bitrate changed.
47 lines
1016 B
Go
47 lines
1016 B
Go
package json
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import (
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stdjson "encoding/json"
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"github.com/wader/fq/format"
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"github.com/wader/fq/format/registry"
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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/scalar"
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)
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// TODO: should read multiple json values or just one?
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// TODO: root not array/struct how to add unknown gaps?
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// TODO: ranges not end up correct
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// TODO: use jd.InputOffset() * 8?
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func init() {
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registry.MustRegister(decode.Format{
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Name: format.JSON,
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Description: "JSON",
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ProbeOrder: 100, // last
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Groups: []string{format.PROBE},
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DecodeFn: decodeJSON,
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})
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}
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func decodeJSON(d *decode.D, in interface{}) interface{} {
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br := d.RawLen(d.Len())
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jd := stdjson.NewDecoder(bitio.NewIOReader(br))
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var s scalar.S
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if err := jd.Decode(&s.Actual); err != nil {
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d.Fatalf(err.Error())
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}
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switch s.Actual.(type) {
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case map[string]interface{},
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[]interface{}:
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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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