protox

README

Protox

Go library for (de-)serializing custom protocols

Usage

Use protox.New().<...>.Build() to define a processor that uses a specific format for writing/reading. You can call Read or Write methods on the resulting *protox.Processor to (de-)serialize data.

Here's an example using a struct, it uses all allowed variable formats:

import "github.com/bbfh-dev/protox"

type Example struct {
	Byte        byte
	BytesDelim  []byte
	String      string
	StringDelim string
	Int         int64
	IntDelim    int64
	FloatDelim  float64
	StringMap   map[string]string
}

func (example *Example) Protox() *protox.Processor {
	return protox.New().
		ThenByte(&example.Byte).
		ThenBytesDelim(&example.BytesDelim, '\x00').
		ThenString(&example.String, 3).
		ThenStringDelim(&example.StringDelim, '\x00').
		ThenInt(&example.Int).
		ThenIntDelim(&example.IntDelim, '\x00').
		ThenFloatDelim(&example.FloatDelim, '\x00').
		ThenStringMap(example.StringMap, '=', '\x00', '\x00').
		Build()
}

func write(buffer *bytes.Buffer) {
	err := example.Protox().Write(buffer)
    fmt.Println(buffer.String()) // "gabc\x00hi!Hello World!\x009\x05\x00\x00\x00\x00\x00\x0042069\x00420.69\x00a=(1)\x00b=(2)\x00c=(3)\x00\x00"
}

func read(buffer *bytes.Buffer) {
	instance := &Example{}
    err := instance.Protox().Read(bufio.NewReader(buffer))
    fmt.Prinln(instance) // &protox_test.Example{Byte:0x67, BytesDelim:[]uint8{0x61, 0x62, 0x63}, String:"hi!", StringDelim:"Hello World!", Int:1337, IntDelim:42069, FloatDelim:420.69, StringMap:map[string]string{"a":"(1)", "b":"(2)", "c":"(3)"}}
}

Documentation

Index

• type Builder
  • func New() *Builder
  • func (build *Builder) Build() *Processor
  • func (builder *Builder) ThenByte(ref *byte) *Builder
  • func (builder *Builder) ThenBytesDelim(value *[]byte, delim byte) *Builder
  • func (builder *Builder) ThenFloatDelim(ref *float64, delim byte) *Builder
  • func (builder *Builder) ThenInt(ref *int64) *Builder
  • func (builder *Builder) ThenIntDelim(ref *int64, delim byte) *Builder
  • func (builder *Builder) ThenString(ref *string, size int) *Builder
  • func (builder *Builder) ThenStringDelim(ref *string, delim byte) *Builder
  • func (builder *Builder) ThenStringMap(value map[string]string, sep, comma, delim byte) *Builder
• type Processor
  • func (processor *Processor) ForceRead(reader *bufio.Reader) error
  • func (processor *Processor) ForceWrite(writer io.Writer) error
  • func (processor *Processor) Read(reader *bufio.Reader) error
  • func (processor *Processor) Write(writer io.Writer) error

Types

type Builder

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

func New

func New() *Builder

func (*Builder) Build

func (build *Builder) Build() *Processor

Build the Protox processor

func (*Builder) ThenByte

func (builder *Builder) ThenByte(ref *byte) *Builder

func (*Builder) ThenBytesDelim

func (builder *Builder) ThenBytesDelim(value *[]byte, delim byte) *Builder

func (*Builder) ThenFloatDelim

func (builder *Builder) ThenFloatDelim(ref *float64, delim byte) *Builder

func (*Builder) ThenInt

func (builder *Builder) ThenInt(ref *int64) *Builder

func (*Builder) ThenIntDelim

func (builder *Builder) ThenIntDelim(ref *int64, delim byte) *Builder

func (*Builder) ThenString

func (builder *Builder) ThenString(ref *string, size int) *Builder

func (*Builder) ThenStringDelim

func (builder *Builder) ThenStringDelim(ref *string, delim byte) *Builder

func (*Builder) ThenStringMap

func (builder *Builder) ThenStringMap(value map[string]string, sep, comma, delim byte) *Builder

type Processor

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

func (*Processor) ForceRead

func (processor *Processor) ForceRead(reader *bufio.Reader) error

Continues to read even if an error is encountered, returns all errors combined

func (*Processor) ForceWrite

func (processor *Processor) ForceWrite(writer io.Writer) error

Continues to write even if an error is encountered, returns all errors combined

func (*Processor) Read

func (processor *Processor) Read(reader *bufio.Reader) error

Returns on the first error encountered

func (*Processor) Write

func (processor *Processor) Write(writer io.Writer) error

Returns on the first error encountered