json

package
v1.6.0 Latest Latest
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 Go to latest Published: Mar 26, 2023 License: MIT Imports: 10 Imported by: 3

README

json

This package provides support for encoding and decoding JSON format.

Examples

package main

import (
	"fmt"
	"io/ioutil"
	
	"github.com/mithrandie/go-text"
	"github.com/mithrandie/go-text/json"
)

func main() {
	data, err := ioutil.ReadFile("example.json")
	if err != nil {
		panic("file open error")
	}
	
	d := json.NewDecoder()
	structure, escapeType, err := d.Decode(string(data))
	if err != nil {
		panic("json decode error")
	}
	
	e := json.NewEncoder()
	e.EscapeType = escapeType
	e.LineBreak = text.LF
	e.PrettyPrint = true
	e.Palette = json.NewJsonPalette()
	
	encoded := e.Encode(structure)
	fmt.Println(encoded)
}

Documentation

Overview

Package json is a Go library to read and write JSON format.

Index

Constants

View Source 
const (
	BeginArray     = '['
	BeginObject    = '{'
	EndArray       = ']'
	EndObject      = '}'
	NameSeparator  = ':'
	ValueSeparator = ','
	QuotationMark  = '"'
	EscapeMark     = '\\'
)
View Source 
const (
	FalseValue = "false"
	TrueValue  = "true"
	NullValue  = "null"
)
View Source 
const (
	ObjectKeyEffect = "json_object_key"
	StringEffect    = "json_string"
	NumberEffect    = "json_number"
	BooleanEffect   = "json_boolean"
	NullEffect      = "json_null"
)
View Source 
const BOOLEAN = 57348
View Source 
const EOF = -1
View Source 
const FLOAT = 57350
View Source 
const INTEGER = 57351
View Source 
const NULL = 57349
View Source 
const NUMBER = 57346
View Source 
const STRING = 57347

Variables

View Source 
var WhiteSpaces = []rune{
	32,
	9,
	10,
	13,
}

Functions

func EncodeRune 

func EncodeRune(r rune) []byte

func Escape 

func Escape(s string) string

func EscapeAll 

func EscapeAll(s string) string

func EscapeWithHexDigits 

func EscapeWithHexDigits(s string) string

func GetEscapeBuf 

func GetEscapeBuf() *bytes.Buffer

func NewJsonPalette 

func NewJsonPalette() *color.Palette

func NewSyntaxError 

func NewSyntaxError(message string, token Token) error

func ParseJson 

func ParseJson(src string, useInteger bool) (Structure, EscapeType, error)

func PutEscapeBuf 

func PutEscapeBuf(b *bytes.Buffer)

func Quote 

func Quote(s string) string

Types

type Array 

type Array []Structure

func (Array) Encode 

func (ar Array) Encode() string

type Boolean 

type Boolean bool

func (Boolean) Encode 

func (b Boolean) Encode() string

func (Boolean) Raw 

func (b Boolean) Raw() bool

type DecodeError added in v1.5.0 

type DecodeError struct {
	// contains filtered or unexported fields
}

func NewDecodeError added in v1.5.0 

func NewDecodeError(line int, char int, message string) *DecodeError

func (DecodeError) Char added in v1.5.0 

func (e DecodeError) Char() int

func (DecodeError) Error added in v1.5.0 

func (e DecodeError) Error() string

func (DecodeError) Line added in v1.5.0 

func (e DecodeError) Line() int

func (DecodeError) Message added in v1.5.0 

func (e DecodeError) Message() string

type Decoder 

type Decoder struct {
	// Returns numeric values as Integer or Float instead of Number if true.
	UseInteger bool
}

func NewDecoder 

func NewDecoder() *Decoder

func (Decoder) Decode 

func (d Decoder) Decode(src string) (Structure, EscapeType, error)

type Encoder 

type Encoder struct {
	EscapeType     EscapeType
	PrettyPrint    bool
	NanInfHandling NanInfHandling
	FloatFormat    FloatFormat
	LineBreak      text.LineBreak
	IndentSpaces   int
	Palette        *color.Palette
	// contains filtered or unexported fields
}

func NewEncoder 

func NewEncoder() *Encoder

func (*Encoder) Encode 

func (e *Encoder) Encode(structure Structure) (string, error)

type EscapeType 

type EscapeType int
const (
	Backslash        EscapeType = 0
	HexDigits        EscapeType = 1
	AllWithHexDigits EscapeType = 2
)

func Unescape 

func Unescape(s string) (string, EscapeType)

type Float 

type Float = Number

type FloatFormat added in v1.5.4 

type FloatFormat int8
const (
	NoExponent FloatFormat = iota
	ENotationForLargeExponents
)

type Integer 

type Integer int64

func (Integer) Encode 

func (n Integer) Encode() string

func (Integer) Raw 

func (n Integer) Raw() int64

type Lexer 

type Lexer struct {
	Scanner
	// contains filtered or unexported fields
}

func (*Lexer) Error 

func (l *Lexer) Error(e string)

func (*Lexer) Lex 

func (l *Lexer) Lex(lval *yySymType) int

type NanInfHandling added in v1.5.4 

type NanInfHandling int8
const (
	ConvertToNull NanInfHandling = iota
	CreateError
	ConvertToStringNotation
)

type Null 

type Null struct{}

func (Null) Encode 

func (n Null) Encode() string

type Number 

type Number float64

func (Number) Encode 

func (n Number) Encode() string

func (Number) IsInf added in v1.5.4 

func (n Number) IsInf() bool

func (Number) IsNaN added in v1.5.4 

func (n Number) IsNaN() bool

func (Number) IsNegativeInfinity added in v1.5.4 

func (n Number) IsNegativeInfinity() bool

func (Number) IsPositiveInfinity added in v1.5.4 

func (n Number) IsPositiveInfinity() bool

func (Number) Raw 

func (n Number) Raw() float64

type Object 

type Object struct {
	Members []ObjectMember
}

func NewObject 

func NewObject(capacity int) Object

func (*Object) Add 

func (obj *Object) Add(key string, val Structure)

func (Object) Encode 

func (obj Object) Encode() string

func (*Object) Exists 

func (obj *Object) Exists(key string) bool

func (*Object) Keys added in v1.3.2 

func (obj *Object) Keys() []string

func (*Object) Len 

func (obj *Object) Len() int

func (*Object) Range added in v1.3.2 

func (obj *Object) Range(fn func(key string, value Structure) bool)

func (*Object) Update 

func (obj *Object) Update(key string, val Structure)

func (*Object) Value 

func (obj *Object) Value(key string) Structure

func (*Object) Values added in v1.3.2 

func (obj *Object) Values() []Structure

type ObjectMember 

type ObjectMember struct {
	Key   string
	Value Structure
}

type Scanner 

type Scanner struct {
	UseInteger bool
	// contains filtered or unexported fields
}

func (*Scanner) EscapeType 

func (s *Scanner) EscapeType() EscapeType

func (*Scanner) Init 

func (s *Scanner) Init(src string, useInteger bool) *Scanner

func (*Scanner) Scan 

func (s *Scanner) Scan() (Token, error)

type String 

type String string

func (String) Encode 

func (s String) Encode() string

func (String) Raw 

func (s String) Raw() string

type Structure 

type Structure interface {
	Encode() string
}

type SyntaxError 

type SyntaxError struct {
	Line    int
	Column  int
	Message string
}

func (SyntaxError) Error 

func (e SyntaxError) Error() string

type Token 

type Token struct {
	Token   int
	Literal string
	Line    int
	Column  int
}

type UnsupportedValueError added in v1.5.4 

type UnsupportedValueError struct {
	Value string
}

func NewUnsupportedValueError added in v1.5.4 

func NewUnsupportedValueError(value string) *UnsupportedValueError

func (UnsupportedValueError) Error added in v1.5.4 

func (e UnsupportedValueError) Error() string

Source Files

View all Source files

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