rss-tools @ a5ac52722b131734c74504b6e6f4d9900536cac7

// Copyright 2015 The Go Authors. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

// Package internal contains code that is shared among encoding implementations.

package internal

import (

	"golang.org/x/text/encoding"

	"golang.org/x/text/encoding/internal/identifier"

	"golang.org/x/text/transform"

)

// Encoding is an implementation of the Encoding interface that adds the String

// and ID methods to an existing encoding.

type Encoding struct {

	encoding.Encoding

	Name string

	MIB  identifier.MIB

}

// _ verifies that Encoding implements identifier.Interface.

var _ identifier.Interface = (*Encoding)(nil)

func (e *Encoding) String() string {

	return e.Name

}

func (e *Encoding) ID() (mib identifier.MIB, other string) {

	return e.MIB, ""

}

// SimpleEncoding is an Encoding that combines two Transformers.

type SimpleEncoding struct {

	Decoder transform.Transformer

	Encoder transform.Transformer

}

func (e *SimpleEncoding) NewDecoder() *encoding.Decoder {

	return &encoding.Decoder{Transformer: e.Decoder}

}

func (e *SimpleEncoding) NewEncoder() *encoding.Encoder {

	return &encoding.Encoder{Transformer: e.Encoder}

}

// FuncEncoding is an Encoding that combines two functions returning a new

// Transformer.

type FuncEncoding struct {

	Decoder func() transform.Transformer

	Encoder func() transform.Transformer

}

func (e FuncEncoding) NewDecoder() *encoding.Decoder {

	return &encoding.Decoder{Transformer: e.Decoder()}

}

func (e FuncEncoding) NewEncoder() *encoding.Encoder {

	return &encoding.Encoder{Transformer: e.Encoder()}

}

// A RepertoireError indicates a rune is not in the repertoire of a destination

// encoding. It is associated with an encoding-specific suggested replacement

// byte.

type RepertoireError byte

// Error implements the error interface.

func (r RepertoireError) Error() string {

	return "encoding: rune not supported by encoding."

}

// Replacement returns the replacement string associated with this error.

func (r RepertoireError) Replacement() byte { return byte(r) }

var ErrASCIIReplacement = RepertoireError(encoding.ASCIISub)