json

package
v0.0.0-...-6f9c769 Latest Latest
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 Go to latest Published: Jul 10, 2023 License: Apache-2.0 Imports: 11 Imported by: 0

Documentation

Overview

Package json contains a JSON lexer implementation.

It is expected that it is mostly used with generated parser code, so the interface is tuned for a parser that knows what kind of data is expected.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Lexer 

type Lexer struct {
	Data []byte // Input data given to the lexer.

	UseMultipleErrors bool  // If we want to use multiple errors.
	FatalError        error // Fatal error occurred during lexing. It is usually a syntax error.
	// contains filtered or unexported fields
}

Lexer is a JSON lexer: it iterates over JSON tokens in a byte slice.

func (*Lexer) AddError 

func (r *Lexer) AddError(e error)

func (*Lexer) AddNonFatalError 

func (r *Lexer) AddNonFatalError(e error)

func (*Lexer) Bool 

func (r *Lexer) Bool() bool

Bool reads a true or false boolean keyword.

func (*Lexer) Bytes 

func (r *Lexer) Bytes() []byte

Bytes reads a string literal and base64 decodes it into a byte slice.

func (*Lexer) Consumed 

func (r *Lexer) Consumed()

Consumed reads all remaining bytes from the input, publishing an error if there is anything but whitespace remaining.

func (*Lexer) Delim 

func (r *Lexer) Delim(c byte)

Delim consumes a token and verifies that it is the given delimiter.

func (*Lexer) Error 

func (r *Lexer) Error() error

func (*Lexer) FetchToken 

func (r *Lexer) FetchToken()

FetchToken scans the input for the next token.

func (*Lexer) Float32 

func (r *Lexer) Float32() float32

func (*Lexer) Float32Str 

func (r *Lexer) Float32Str() float32

func (*Lexer) Float64 

func (r *Lexer) Float64() float64

func (*Lexer) Float64Str 

func (r *Lexer) Float64Str() float64

func (*Lexer) GetNonFatalErrors 

func (r *Lexer) GetNonFatalErrors() []*LexerError

func (*Lexer) GetPos 

func (r *Lexer) GetPos() int

func (*Lexer) Int 

func (r *Lexer) Int() int

func (*Lexer) Int16 

func (r *Lexer) Int16() int16

func (*Lexer) Int16Str 

func (r *Lexer) Int16Str() int16

func (*Lexer) Int32 

func (r *Lexer) Int32() int32

func (*Lexer) Int32Str 

func (r *Lexer) Int32Str() int32

func (*Lexer) Int64 

func (r *Lexer) Int64() int64

func (*Lexer) Int64Str 

func (r *Lexer) Int64Str() int64

func (*Lexer) Int8 

func (r *Lexer) Int8() int8

func (*Lexer) Int8Str 

func (r *Lexer) Int8Str() int8

func (*Lexer) IntStr 

func (r *Lexer) IntStr() int

func (*Lexer) Interface 

func (r *Lexer) Interface() interface{}

Interface fetches an interface{} analogous to the 'encoding/json' package.

func (*Lexer) IsDelim 

func (r *Lexer) IsDelim(c byte) bool

IsDelim returns true if there was no scanning error and next token is the given delimiter.

func (*Lexer) IsNull 

func (r *Lexer) IsNull() bool

IsNull returns true if the next token is a null keyword.

func (*Lexer) IsStart 

func (r *Lexer) IsStart() bool

IsStart returns whether the lexer is positioned at the start of an input string.

func (*Lexer) JsonNumber 

func (r *Lexer) JsonNumber() json.Number

JsonNumber fetches and json.Number from 'encoding/json' package. Both int, float or string, contains them are valid values

func (*Lexer) Null 

func (r *Lexer) Null()

Null verifies that the next token is null and consumes it.

func (*Lexer) Ok 

func (r *Lexer) Ok() bool

Ok returns true if no error (including io.EOF) was encountered during scanning.

func (*Lexer) Raw 

func (r *Lexer) Raw() []byte

Raw fetches the next item recursively as a data slice

func (*Lexer) Skip 

func (r *Lexer) Skip()

Skip skips a single token.

func (*Lexer) SkipRecursive 

func (r *Lexer) SkipRecursive()

SkipRecursive skips next array or object completely, or just skips a single token if not an array/object.

Note: no syntax validation is performed on the skipped data.

func (*Lexer) String 

func (r *Lexer) String() string

String reads a string literal.

func (*Lexer) Uint 

func (r *Lexer) Uint() uint

func (*Lexer) Uint16 

func (r *Lexer) Uint16() uint16

func (*Lexer) Uint16Str 

func (r *Lexer) Uint16Str() uint16

func (*Lexer) Uint32 

func (r *Lexer) Uint32() uint32

func (*Lexer) Uint32Str 

func (r *Lexer) Uint32Str() uint32

func (*Lexer) Uint64 

func (r *Lexer) Uint64() uint64

func (*Lexer) Uint64Str 

func (r *Lexer) Uint64Str() uint64

func (*Lexer) Uint8 

func (r *Lexer) Uint8() uint8

func (*Lexer) Uint8Str 

func (r *Lexer) Uint8Str() uint8

func (*Lexer) UintStr 

func (r *Lexer) UintStr() uint

func (*Lexer) UintptrStr 

func (r *Lexer) UintptrStr() uintptr

func (*Lexer) UnsafeBytes 

func (r *Lexer) UnsafeBytes() []byte

UnsafeBytes returns the byte slice if the token is a string literal.

func (*Lexer) UnsafeFieldName 

func (r *Lexer) UnsafeFieldName(skipUnescape bool) string

UnsafeFieldName returns current member name string token

func (*Lexer) UnsafeString 

func (r *Lexer) UnsafeString() string

UnsafeString returns the string value if the token is a string literal.

Warning: returned string may point to the input buffer, so the string should not outlive the input buffer. Intended pattern of usage is as an argument to a switch statement.

func (*Lexer) WantColon 

func (r *Lexer) WantColon()

WantColon requires a colon to be present before fetching next token.

func (*Lexer) WantComma 

func (r *Lexer) WantComma()

WantComma requires a comma to be present before fetching next token.

type LexerError 

type LexerError struct {
	Reason string
	Offset int
	Data   string
}

LexerError implements the error interface and represents all possible errors that can be generated during parsing the JSON data.

func (*LexerError) Error 

func (l *LexerError) Error() string

type Reader 

type Reader struct {
	Lexer      Lexer
	Type       uint16
	First      string
	OutOfOrder bool
	IsCompact  bool
	NoFields   bool
}

func OpenReader 

func OpenReader(b []byte) (Reader, error)

func (*Reader) Bool 

func (r *Reader) Bool() bool

func (*Reader) Error 

func (r *Reader) Error() error

func (*Reader) FieldName 

func (r *Reader) FieldName() (string, error)

func (*Reader) Float32 

func (r *Reader) Float32() float32

func (*Reader) Float64 

func (r *Reader) Float64() float64

func (*Reader) Int16 

func (r *Reader) Int16() int16

func (*Reader) Int32 

func (r *Reader) Int32() int32

func (*Reader) Int64 

func (r *Reader) Int64() int64

func (*Reader) Int8 

func (r *Reader) Int8() int8

func (*Reader) IsError 

func (r *Reader) IsError() bool

func (*Reader) String 

func (r *Reader) String() string

func (*Reader) Uint16 

func (r *Reader) Uint16() uint16

func (*Reader) Uint32 

func (r *Reader) Uint32() uint32

func (*Reader) Uint64 

func (r *Reader) Uint64() uint64

func (*Reader) Uint8 

func (r *Reader) Uint8() uint8

func (*Reader) WantComma 

func (r *Reader) WantComma()

type Writer 

type Writer struct {
	Data         []byte
	Error        error
	Compact      bool
	NoEscapeHTML bool
}

func NewCompactWriterFloat32 

func NewCompactWriterFloat32(b []byte, typ uint16, first float32) Writer

func NewCompactWriterFloat64 

func NewCompactWriterFloat64(b []byte, typ uint16, first float64) Writer

func NewCompactWriterInt16 

func NewCompactWriterInt16(b []byte, typ uint16, first int16) Writer

func NewCompactWriterInt32 

func NewCompactWriterInt32(b []byte, typ uint16, first int32) Writer

func NewCompactWriterInt64 

func NewCompactWriterInt64(b []byte, typ uint16, first int64) Writer

func NewCompactWriterInt8 

func NewCompactWriterInt8(b []byte, typ uint16, first int8) Writer

func NewCompactWriterUint16 

func NewCompactWriterUint16(b []byte, typ uint16, first uint16) Writer

func NewCompactWriterUint32 

func NewCompactWriterUint32(b []byte, typ uint16, first uint32) Writer

func NewCompactWriterUint64 

func NewCompactWriterUint64(b []byte, typ uint16, first uint64) Writer

func NewCompactWriterUint8 

func NewCompactWriterUint8(b []byte, typ uint16, first uint8) Writer

func NewWriter 

func NewWriter(b []byte, typ uint16) Writer

func (*Writer) Base64Bytes 

func (w *Writer) Base64Bytes(data []byte)

Base64Bytes appends data to the buffer after base64 encoding it

func (*Writer) Bool 

func (w *Writer) Bool(v bool)

func (*Writer) BoolCompact 

func (w *Writer) BoolCompact(v bool) *Writer

func (*Writer) BoolField 

func (w *Writer) BoolField(n string, v bool)

func (*Writer) Finish 

func (w *Writer) Finish() []byte

func (*Writer) Float32 

func (w *Writer) Float32(n float32)

func (*Writer) Float32Compact 

func (w *Writer) Float32Compact(v float32) *Writer

func (*Writer) Float32Field 

func (w *Writer) Float32Field(n string, v float32)

func (*Writer) Float32Str 

func (w *Writer) Float32Str(n float32)

func (*Writer) Float64 

func (w *Writer) Float64(n float64)

func (*Writer) Float64Compact 

func (w *Writer) Float64Compact(v float64) *Writer

func (*Writer) Float64Field 

func (w *Writer) Float64Field(n string, v float64)

func (*Writer) Float64Str 

func (w *Writer) Float64Str(n float64)

func (*Writer) Float64StrField 

func (w *Writer) Float64StrField(n string, v float64)

func (*Writer) Int 

func (w *Writer) Int(n int)

func (*Writer) Int16 

func (w *Writer) Int16(n int16)

func (*Writer) Int16Compact 

func (w *Writer) Int16Compact(v int16) *Writer

func (*Writer) Int16Field 

func (w *Writer) Int16Field(n string, v int16)

func (*Writer) Int16Str 

func (w *Writer) Int16Str(n int16)

func (*Writer) Int32 

func (w *Writer) Int32(n int32)

func (*Writer) Int32Compact 

func (w *Writer) Int32Compact(v int32) *Writer

func (*Writer) Int32Field 

func (w *Writer) Int32Field(n string, v int32)

func (*Writer) Int32Str 

func (w *Writer) Int32Str(n int32)

func (*Writer) Int64 

func (w *Writer) Int64(n int64)

func (*Writer) Int64Compact 

func (w *Writer) Int64Compact(v int64) *Writer

func (*Writer) Int64Field 

func (w *Writer) Int64Field(n string, v int64)

func (*Writer) Int64Str 

func (w *Writer) Int64Str(n int64)

func (*Writer) Int8 

func (w *Writer) Int8(n int8)

func (*Writer) Int8Compact 

func (w *Writer) Int8Compact(v int8) *Writer

func (*Writer) Int8Field 

func (w *Writer) Int8Field(n string, v int8)

func (*Writer) Int8Str 

func (w *Writer) Int8Str(n int8)

func (*Writer) IntCompact 

func (w *Writer) IntCompact(v int) *Writer

func (*Writer) IntField 

func (w *Writer) IntField(n string, v int)

func (*Writer) IntStr 

func (w *Writer) IntStr(n int)

func (*Writer) Raw 

func (w *Writer) Raw(data []byte, err error)

Raw appends raw binary data to the buffer or sets the error if it is given. Useful for calling with results of MarshalJSONTo-like functions.

func (*Writer) RawByte 

func (w *Writer) RawByte(c byte)

RawByte appends raw binary data to the buffer.

func (*Writer) RawString 

func (w *Writer) RawString(s string)

RawString appends raw binary data to the buffer.

func (*Writer) RawText 

func (w *Writer) RawText(data []byte, err error)

RawText encloses raw binary data in quotes and appends in to the buffer. Useful for calling with results of MarshalText-like functions.

func (*Writer) String 

func (w *Writer) String(s string)

func (*Writer) StringCompact 

func (w *Writer) StringCompact(v string) *Writer

func (*Writer) StringField 

func (w *Writer) StringField(n string, v string)

func (*Writer) Uint 

func (w *Writer) Uint(n uint)

func (*Writer) Uint16 

func (w *Writer) Uint16(n uint16)

func (*Writer) Uint16Compact 

func (w *Writer) Uint16Compact(v uint16) *Writer

func (*Writer) Uint16Field 

func (w *Writer) Uint16Field(n string, v uint16)

func (*Writer) Uint16Str 

func (w *Writer) Uint16Str(n uint16)

func (*Writer) Uint32 

func (w *Writer) Uint32(n uint32)

func (*Writer) Uint32Compact 

func (w *Writer) Uint32Compact(v uint32) *Writer

func (*Writer) Uint32Field 

func (w *Writer) Uint32Field(n string, v uint32)

func (*Writer) Uint32Str 

func (w *Writer) Uint32Str(n uint32)

func (*Writer) Uint64 

func (w *Writer) Uint64(n uint64)

func (*Writer) Uint64Compact 

func (w *Writer) Uint64Compact(v uint64) *Writer

func (*Writer) Uint64Field 

func (w *Writer) Uint64Field(n string, v uint64)

func (*Writer) Uint64Str 

func (w *Writer) Uint64Str(n uint64)

func (*Writer) Uint8 

func (w *Writer) Uint8(n uint8)

func (*Writer) Uint8Compact 

func (w *Writer) Uint8Compact(v uint8) *Writer

func (*Writer) Uint8Field 

func (w *Writer) Uint8Field(n string, v uint8)

func (*Writer) Uint8Str 

func (w *Writer) Uint8Str(n uint8)

func (*Writer) UintCompact 

func (w *Writer) UintCompact(v uint) *Writer

func (*Writer) UintField 

func (w *Writer) UintField(n string, v uint)

func (*Writer) UintStr 

func (w *Writer) UintStr(n uint)

func (*Writer) UintptrStr 

func (w *Writer) UintptrStr(n uintptr)

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