coding

Documentation

Index

• func ConvertToUTF8String(charset string, textBytes []byte) (string, error)
• func FindCharsetInHTML(html string) string
• func FromIDHeader(v string) string
• func NewCharsetReader(charset string, input io.Reader) (io.Reader, error)
• func ToIDHeader(v string) string
• type Base64Cleaner
  • func NewBase64Cleaner(r io.Reader) *Base64Cleaner
  • func (bc *Base64Cleaner) Read(p []byte) (n int, err error)
• type QPCleaner
  • func NewQPCleaner(r io.Reader) *QPCleaner
  • func (qp *QPCleaner) Read(dest []byte) (n int, err error)

Functions

func ConvertToUTF8String

func ConvertToUTF8String(charset string, textBytes []byte) (string, error)

ConvertToUTF8String uses the provided charset to decode a slice of bytes into a normal UTF-8 string.

func FindCharsetInHTML

func FindCharsetInHTML(html string) string

FindCharsetInHTML looks for charset in the HTML meta tag (v4.01 and v5).

func FromIDHeader

func FromIDHeader(v string) string

FromIDHeader decodes a Content-ID or Message-ID header value (RFC 2392) into a utf-8 string. Example: "<foo%3fbar+baz>" becomes "foo?bar baz".

func NewCharsetReader

func NewCharsetReader(charset string, input io.Reader) (io.Reader, error)

NewCharsetReader generates charset-conversion readers, converting from the provided charset into UTF-8. CharsetReader is a factory signature defined by Go's mime.WordDecoder.

This function is similar to: https://godoc.org/golang.org/x/net/html/charset#NewReaderLabel

func ToIDHeader

func ToIDHeader(v string) string

ToIDHeader encodes a Content-ID or Message-ID header value (RFC 2392) from a utf-8 string.

Types

type Base64Cleaner

type Base64Cleaner struct {
	// Report of non-whitespace characters detected while cleaning base64 data.
	Errors []error
	// contains filtered or unexported fields
}

Base64Cleaner improves the tolerance of in Go's built-in base64 decoder by stripping out characters that would cause decoding to fail.

func NewBase64Cleaner

func NewBase64Cleaner(r io.Reader) *Base64Cleaner

NewBase64Cleaner returns a Base64Cleaner object for the specified reader. Base64Cleaner implements the io.Reader interface.

func (*Base64Cleaner) Read

func (bc *Base64Cleaner) Read(p []byte) (n int, err error)

Read method for io.Reader interface.

type QPCleaner

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

QPCleaner scans quoted printable content for invalid characters and encodes them so that Go's quoted-printable decoder does not abort with an error.

func NewQPCleaner

func NewQPCleaner(r io.Reader) *QPCleaner

NewQPCleaner returns a QPCleaner for the specified reader.

func (*QPCleaner) Read

func (qp *QPCleaner) Read(dest []byte) (n int, err error)

Read method for io.Reader interface.