76 lines
2.1 KiB
Go
Vendored
76 lines
2.1 KiB
Go
Vendored
// 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 interrface.
|
|
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)
|