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// Copyright (C) 2022 Luke Shumaker <lukeshu@lukeshu.com>
//
// SPDX-License-Identifier: GPL-2.0-or-later
package lowmemjson
import (
"bytes"
"bufio"
"encoding/json"
"io"
)
func MarshalIndent(v any, prefix, indent string) ([]byte, error) {
var buf bytes.Buffer
formatter := &ReEncoder{
Out: &buf,
Indent: indent,
prefix: prefix,
}
err := Encode(formatter, v)
return buf.Bytes(), err
}
func Marshal(v any) ([]byte, error) {
var buf bytes.Buffer
formatter := &ReEncoder{
Out: &buf,
Compact: true,
}
err := Encode(formatter, v)
return buf.Bytes(), err
}
func HTMLEscape(dst *bytes.Buffer, src []byte) {
formatter := &ReEncoder{
Out: dst,
}
_, _ = formatter.Write(src)
}
func Compact(dst *bytes.Buffer, src []byte) error {
formatter := &ReEncoder{
Out: dst,
Compact: true,
}
_, err := formatter.Write(src)
return err
}
func Indent(dst *bytes.Buffer, src []byte, prefix, indent string) error {
formatter := &ReEncoder{
Out: dst,
Indent: indent,
prefix: prefix,
}
_, err := formatter.Write(src)
return err
}
func Valid(data []byte) bool {
formatter := &ReEncoder{
Out: io.Discard,
Compact: true,
}
_, err := formatter.Write(data)
return err == nil
}
func Unmarshal(data []byte, ptr any) error {
return Decode(bytes.NewReader(data), ptr)
}
type _Decoder struct {
src *bufio.Reader
}
func NewDecoder(r io.Reader) *_Decoder {
return &_Decoder{
src: bufio.NewReader(r),
}
}
func (dec *_Decoder) DisallowUnknownFields() {}
func (dec *_Decoder) UseNumber() {}
func (dec *_Decoder) Buffered() io.Reader {
dat, _ := dec.src.Peek(dec.src.Buffered())
return bytes.NewReader(dat)
}
func (dec *_Decoder) Decode(v any) error {
return Decode(dec.src, v)
}
func (dec *_Decoder) InputOffset() int64 { return 0 }
func (dec *_Decoder) More() bool {
decodeWS(dec.src)
_, ok := peekRuneOrEOF(dec.src)
return ok
}
//func (dec *_Decoder) Token() (Token, error)
/////////////////////////////////////////////////////////////////////
type (
Number = json.Number
Marshaler = json.Marshaler
RawMessage = json.RawMessage
UnsupportedValueError = json.UnsupportedValueError
MarshalerError = json.MarshalerError
UnmarshalTypeError = json.UnmarshalTypeError
)
const (
startDetectingCyclesAfter = 1000
)
func isSpace(c byte) bool {
switch c {
case 0x0020, 0x000A, 0x000D, 0x0009:
return true
default:
return false
}
}
type encodeState struct {
bytes.Buffer
}
func (es *encodeState) string(str string, _ bool) {
encodeString(&es.Buffer, str)
}
func (es *encodeState) stringBytes(str []byte, _ bool) {
encodeString(&es.Buffer, str)
}
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