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package main
import (
"encoding/json"
"flag"
"fmt"
"io"
"log"
"os"
"github.com/fxamacker/cbor/v2"
)
func main() {
flag.Parse()
var buf []byte
var err error
if len(flag.Args()) == 0 {
buf, err = io.ReadAll(os.Stdin)
} else {
buf, err = os.ReadFile(flag.Args()[0])
}
if err != nil {
log.Fatalln(err.Error())
}
var v any
if err := cbor.Unmarshal(buf, &v); err == nil {
/* Decode CBOR to JSON */
buf, err := json.MarshalIndent(fixKeys(v), "", "\t")
if err != nil {
log.Fatalln(err.Error())
}
os.Stdout.Write(buf)
} else if err := json.Unmarshal(buf, &v); err == nil {
/* Encode JSON to CBOR */
buf, err := cbor.Marshal(v)
if err != nil {
log.Fatalln(err.Error())
}
os.Stdout.Write(buf)
} else {
log.Fatalln(err.Error())
}
}
func fixKeys(v any) any {
switch v := v.(type) {
case map[any]any:
o := make(map[string]any, len(v))
for k, e := range v {
o[fmt.Sprintf("%v", k)] = fixKeys(e)
}
return o
case []any:
o := make([]any, len(v))
for i, e := range v {
o[i] = fixKeys(e)
}
return o
}
return v
}
func If[T any](cond bool, a, b T) T {
if cond {
return a
}
return b
}
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