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// Copyright (C) 2023 Luke Shumaker <lukeshu@lukeshu.com>
//
// SPDX-License-Identifier: GPL-2.0-or-later
// Package jsonutil provides utilities for implementing the interfaces
// consumed by the "git.lukeshu.com/go/lowmemjson" package.
package jsonutil
import (
"io"
"git.lukeshu.com/go/lowmemjson"
)
func EncodeHexString[T ~[]byte | ~string](w io.Writer, str T) error {
const hextable = "0123456789abcdef"
var buf [2]byte
buf[0] = '"'
if _, err := w.Write(buf[:1]); err != nil {
return err
}
for i := 0; i < len(str); i++ {
buf[0] = hextable[str[i]>>4]
buf[1] = hextable[str[i]&0x0f]
if _, err := w.Write(buf[:]); err != nil {
return err
}
}
buf[0] = '"'
if _, err := w.Write(buf[:1]); err != nil {
return err
}
return nil
}
func DecodeHexString(r io.RuneScanner, dst io.ByteWriter) error {
dec := &hexDecoder{dst: dst}
if err := lowmemjson.DecodeString(r, dec); err != nil {
return err
}
return dec.Close()
}
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