rwi

Documentation

Overview

Package rwi : Reader/Writer Interface for command-line

These codes are licensed under CC0. http://creativecommons.org/publicdomain/zero/1.0/

Index

• type OptFunc
  • func WithErrorWriter(e io.Writer) OptFunc
  • func WithReader(r io.Reader) OptFunc
  • func WithWriter(w io.Writer) OptFunc
• type RWI
  • func New(opts ...OptFunc) *RWI
  • func (c *RWI) ErrorWriter() io.Writer
  • func (c *RWI) Output(val ...interface{}) error
  • func (c *RWI) OutputBytes(data []byte) error
  • func (c *RWI) OutputErr(val ...interface{}) error
  • func (c *RWI) OutputErrBytes(data []byte) error
  • func (c *RWI) OutputErrln(val ...interface{}) error
  • func (c *RWI) Outputln(val ...interface{}) error
  • func (c *RWI) Reader() io.Reader
  • func (c *RWI) WriteErrFrom(r io.Reader) error
  • func (c *RWI) WriteFrom(r io.Reader) error
  • func (c *RWI) Writer() io.Writer

Types

type OptFunc

type OptFunc func(*RWI)

OptFunc is self-referential function for functional options pattern

func WithErrorWriter

func WithErrorWriter(e io.Writer) OptFunc

WithErrorWriter returns function for setting Writer (error)

func WithReader

func WithReader(r io.Reader) OptFunc

WithReader returns function for setting Reader

func WithWriter

func WithWriter(w io.Writer) OptFunc

WithWriter returns function for setting Writer

type RWI

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

RWI is Reader/Writer class for command-line

func New

func New(opts ...OptFunc) *RWI

New returns a new RWI instance

func (*RWI) ErrorWriter

func (c *RWI) ErrorWriter() io.Writer

ErrorWriter returns RWI.errorWriter

func (*RWI) Output

func (c *RWI) Output(val ...interface{}) error

Output output to RWI.writer

func (*RWI) OutputBytes

func (c *RWI) OutputBytes(data []byte) error

OutputBytes to RWI.writer ([]byte data).

func (*RWI) OutputErr

func (c *RWI) OutputErr(val ...interface{}) error

OutputErr output to RWI.errorWriter

func (*RWI) OutputErrBytes

func (c *RWI) OutputErrBytes(data []byte) error

OutputErrBytes copy to RWI.errorWriter ([]byte data).

func (*RWI) OutputErrln

func (c *RWI) OutputErrln(val ...interface{}) error

OutputErrln output to RWI.errorWriter (add newline).

func (*RWI) Outputln

func (c *RWI) Outputln(val ...interface{}) error

Outputln output to RWI.writer (add newline).

func (*RWI) Reader

func (c *RWI) Reader() io.Reader

Reader returns RWI.reader

func (*RWI) WriteErrFrom

func (c *RWI) WriteErrFrom(r io.Reader) error

WriteErrFrom copy from io.Reader to RWI.errorWriter

func (*RWI) WriteFrom

func (c *RWI) WriteFrom(r io.Reader) error

WriteFrom copy from io.Reader to RWI.writer

func (*RWI) Writer

func (c *RWI) Writer() io.Writer

Writer returns RWI.writer