C# Class MimeKit.Header

A class representing a Message or MIME header.

Represents a single header field and value pair.

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Public Methods

Method	Description
Clone ( ) : Header	Clone the header. Clones the header, copying the current RawValue.
GetValue ( Portable.Text.Encoding encoding ) : string	Gets the header value using the specified character encoding. If the raw header value does not properly encode non-ASCII text, the decoder will fall back to a default charset encoding. Sometimes, however, this default charset fallback is wrong and the mail client may wish to override that default charset on a per-header basis. By using this method, the client is able to override the fallback charset on a per-header basis.
GetValue ( string charset ) : string	Gets the header value using the specified charset. If the raw header value does not properly encode non-ASCII text, the decoder will fall back to a default charset encoding. Sometimes, however, this default charset fallback is wrong and the mail client may wish to override that default charset on a per-header basis. By using this method, the client is able to override the fallback charset on a per-header basis.
Header ( HeaderId id, string value ) : System	Initializes a new instance of the MimeKit.Header class. Creates a new message or entity header for the specified field and value pair with the UTF-8 encoding.
Header ( Portable.Text.Encoding encoding, HeaderId id, string value ) : System	Initializes a new instance of the MimeKit.Header class. Creates a new message or entity header for the specified field and value pair. The encoding is used to determine which charset to use when encoding the value according to the rules of rfc2047.
Header ( Portable.Text.Encoding encoding, string field, string value ) : System	Initializes a new instance of the MimeKit.Header class. Creates a new message or entity header for the specified field and value pair. The encoding is used to determine which charset to use when encoding the value according to the rules of rfc2047.
Header ( string charset, HeaderId id, string value ) : System	Initializes a new instance of the MimeKit.Header class. Creates a new message or entity header for the specified field and value pair. The encoding is used to determine which charset to use when encoding the value according to the rules of rfc2047.
Header ( string field, string value ) : System	Initializes a new instance of the MimeKit.Header class. Creates a new message or entity header for the specified field and value pair with the UTF-8 encoding.
Header ( string charset, string field, string value ) : System	Initializes a new instance of the MimeKit.Header class. Creates a new message or entity header for the specified field and value pair. The encoding is used to determine which charset to use when encoding the value according to the rules of rfc2047.
SetValue ( MimeKit.FormatOptions format, Portable.Text.Encoding encoding, string value ) : void	Sets the header value using the specified formatting options and character encoding. When a particular charset is desired for encoding the header value according to the rules of rfc2047, this method should be used instead of the Value setter.
SetValue ( MimeKit.FormatOptions format, string charset, string value ) : void	Sets the header value using the specified formatting options and charset. When a particular charset is desired for encoding the header value according to the rules of rfc2047, this method should be used instead of the Value setter.
SetValue ( Portable.Text.Encoding encoding, string value ) : void	Sets the header value using the specified character encoding. When a particular charset is desired for encoding the header value according to the rules of rfc2047, this method should be used instead of the Value setter.
SetValue ( string charset, string value ) : void	Sets the header value using the specified charset. When a particular charset is desired for encoding the header value according to the rules of rfc2047, this method should be used instead of the Value setter.
ToString ( ) : string	Returns a string representation of the header. Formats the header field and value in a way that is suitable for display.
TryParse ( ParserOptions options, byte buffer, Header &header ) : bool	Tries to parse the given input buffer into a new MimeKit.Header instance. Parses a header from the specified buffer.
TryParse ( ParserOptions options, byte buffer, int startIndex, Header &header ) : bool	Tries to parse the given input buffer into a new MimeKit.Header instance. Parses a header from the supplied buffer starting at the specified index.
TryParse ( ParserOptions options, byte buffer, int startIndex, int length, Header &header ) : bool	Tries to parse the given input buffer into a new MimeKit.Header instance. Parses a header from the supplied buffer starting at the given index and spanning across the specified number of bytes.
TryParse ( ParserOptions options, string text, Header &header ) : bool	Tries to parse the given text into a new MimeKit.Header instance. Parses a header from the specified text.
TryParse ( byte buffer, Header &header ) : bool	Tries to parse the given input buffer into a new MimeKit.Header instance. Parses a header from the specified buffer.
TryParse ( byte buffer, int startIndex, Header &header ) : bool	Tries to parse the given input buffer into a new MimeKit.Header instance. Parses a header from the supplied buffer starting at the specified index.
TryParse ( byte buffer, int startIndex, int length, Header &header ) : bool	Tries to parse the given input buffer into a new MimeKit.Header instance. Parses a header from the supplied buffer starting at the given index and spanning across the specified number of bytes.
TryParse ( string text, Header &header ) : bool	Tries to parse the given text into a new MimeKit.Header instance. Parses a header from the specified text.
Unfold ( string text ) : string	Unfold the specified header value. Unfolds the header value so that it becomes suitable for display. Since Value is already unfolded, this method is really only needed when working with raw header strings.

Private Methods

Method	Description
EncodeAddressHeader ( ParserOptions options, MimeKit.FormatOptions format, Portable.Text.Encoding charset, string field, string value ) : byte[]
EncodeContentDisposition ( ParserOptions options, MimeKit.FormatOptions format, Portable.Text.Encoding charset, string field, string value ) : byte[]
EncodeContentType ( ParserOptions options, MimeKit.FormatOptions format, Portable.Text.Encoding charset, string field, string value ) : byte[]
EncodeDkimHeaderList ( MimeKit.FormatOptions format, StringBuilder encoded, int &lineLength, string value, char delim ) : void
EncodeDkimLongValue ( MimeKit.FormatOptions format, StringBuilder encoded, int &lineLength, string value ) : void
EncodeDkimSignatureHeader ( ParserOptions options, MimeKit.FormatOptions format, Portable.Text.Encoding charset, string field, string value ) : byte[]
EncodeMessageIdHeader ( ParserOptions options, MimeKit.FormatOptions format, Portable.Text.Encoding charset, string field, string value ) : byte[]
EncodeReceivedHeader ( ParserOptions options, MimeKit.FormatOptions format, Portable.Text.Encoding charset, string field, string value ) : byte[]
EncodeReferencesHeader ( ParserOptions options, MimeKit.FormatOptions format, Portable.Text.Encoding charset, string field, string value ) : byte[]
EncodeUnstructuredHeader ( ParserOptions options, MimeKit.FormatOptions format, Portable.Text.Encoding charset, string field, string value ) : byte[]
Fold ( MimeKit.FormatOptions format, string field, string value ) : string
FormatRawValue ( MimeKit.FormatOptions format, Portable.Text.Encoding encoding ) : byte[]
GetRawValue ( MimeKit.FormatOptions format ) : byte[]
Header ( ParserOptions options, HeaderId id, string field, byte value ) : System
Header ( ParserOptions options, HeaderId id, string name, byte field, byte value ) : System
Header ( ParserOptions options, byte field, byte value ) : System
IsAsciiAtom ( byte c ) : bool
IsBlank ( byte c ) : bool
IsControl ( byte c ) : bool
IsWhiteSpace ( char c ) : bool
OnChanged ( ) : void
ReceivedTokenSkipAddress ( byte text, int &index ) : void
ReceivedTokenSkipAtom ( byte text, int &index ) : void
ReceivedTokenSkipDomain ( byte text, int &index ) : void
ReceivedTokenSkipMessageId ( byte text, int &index ) : void
TokenizeText ( string text ) : IEnumerable
TryParse ( ParserOptions options, byte input, int length, bool strict, Header &header ) : bool
WordBreak ( MimeKit.FormatOptions format, string word, int lineLength ) : IEnumerable

Method Details

Clone() public method

Clone the header.

Clones the header, copying the current RawValue.

public Clone ( ) : Header
return	Header

GetValue() public method

Gets the header value using the specified character encoding.

If the raw header value does not properly encode non-ASCII text, the decoder will fall back to a default charset encoding. Sometimes, however, this default charset fallback is wrong and the mail client may wish to override that default charset on a per-header basis.

By using this method, the client is able to override the fallback charset on a per-header basis.

public GetValue ( Portable.Text.Encoding encoding ) : string
encoding	Portable.Text.Encoding	The character encoding to use as a fallback.
return	string

GetValue() public method

Gets the header value using the specified charset.

By using this method, the client is able to override the fallback charset on a per-header basis.

public GetValue ( string charset ) : string
charset	string	The charset to use as a fallback.
return	string

Header() public method

Initializes a new instance of the MimeKit.Header class.

Creates a new message or entity header for the specified field and value pair with the UTF-8 encoding.

/// is null. /// /// is not a valid . ///

public Header ( HeaderId id, string value ) : System
id	HeaderId	The header identifier.
value	string	The value of the header.
return	System

Header() public method

Initializes a new instance of the MimeKit.Header class.

Creates a new message or entity header for the specified field and value pair. The encoding is used to determine which charset to use when encoding the value according to the rules of rfc2047.

/// is null. /// -or- /// is null. /// /// is not a valid . ///

public Header ( Portable.Text.Encoding encoding, HeaderId id, string value ) : System
encoding	Portable.Text.Encoding	The character encoding that should be used to /// encode the header value.
id	HeaderId	The header identifier.
value	string	The value of the header.
return	System

Header() public method

Initializes a new instance of the MimeKit.Header class.

Creates a new message or entity header for the specified field and value pair. The encoding is used to determine which charset to use when encoding the value according to the rules of rfc2047.

/// is null. /// -or- /// is null. /// -or- /// is null. /// /// The contains illegal characters. ///

public Header ( Portable.Text.Encoding encoding, string field, string value ) : System
encoding	Portable.Text.Encoding	The character encoding that should be used /// to encode the header value.
field	string	The name of the header field.
value	string	The value of the header.
return	System

Header() public method

Initializes a new instance of the MimeKit.Header class.

Creates a new message or entity header for the specified field and value pair. The encoding is used to determine which charset to use when encoding the value according to the rules of rfc2047.

/// is null. /// -or- /// is null. /// /// is not a valid . /// /// is not supported. ///

public Header ( string charset, HeaderId id, string value ) : System
charset	string	The charset that should be used to encode the /// header value.
id	HeaderId	The header identifier.
value	string	The value of the header.
return	System

Header() public method

Initializes a new instance of the MimeKit.Header class.

Creates a new message or entity header for the specified field and value pair with the UTF-8 encoding.

/// is null. /// -or- /// is null. /// /// The contains illegal characters. ///

public Header ( string field, string value ) : System
field	string	The name of the header field.
value	string	The value of the header.
return	System

Header() public method

Initializes a new instance of the MimeKit.Header class.

Creates a new message or entity header for the specified field and value pair. The encoding is used to determine which charset to use when encoding the value according to the rules of rfc2047.

/// is null. /// -or- /// is null. /// -or- /// is null. /// /// The contains illegal characters. /// /// is not supported. ///

public Header ( string charset, string field, string value ) : System
charset	string	The charset that should be used to encode the /// header value.
field	string	The name of the header field.
value	string	The value of the header.
return	System

SetValue() public method

Sets the header value using the specified formatting options and character encoding.

When a particular charset is desired for encoding the header value according to the rules of rfc2047, this method should be used instead of the Value setter.

/// is null. /// -or- /// is null. /// -or- /// is null. ///

public SetValue ( MimeKit.FormatOptions format, Portable.Text.Encoding encoding, string value ) : void
format	MimeKit.FormatOptions	The formatting options.
encoding	Portable.Text.Encoding	A character encoding.
value	string	The header value.
return	void

SetValue() public method

Sets the header value using the specified formatting options and charset.

When a particular charset is desired for encoding the header value according to the rules of rfc2047, this method should be used instead of the Value setter.

/// is null. /// -or- /// is null. /// -or- /// is null. /// /// is not supported. ///

public SetValue ( MimeKit.FormatOptions format, string charset, string value ) : void
format	MimeKit.FormatOptions	The formatting options.
charset	string	A charset encoding.
value	string	The header value.
return	void

SetValue() public method

Sets the header value using the specified character encoding.

When a particular charset is desired for encoding the header value according to the rules of rfc2047, this method should be used instead of the Value setter.

/// is null. /// -or- /// is null. ///

public SetValue ( Portable.Text.Encoding encoding, string value ) : void
encoding	Portable.Text.Encoding	A character encoding.
value	string	The header value.
return	void

SetValue() public method

Sets the header value using the specified charset.

When a particular charset is desired for encoding the header value according to the rules of rfc2047, this method should be used instead of the Value setter.

/// is null. /// -or- /// is null. /// /// is not supported. ///

public SetValue ( string charset, string value ) : void
charset	string	A charset encoding.
value	string	The header value.
return	void

ToString() public method

Returns a string representation of the header.

Formats the header field and value in a way that is suitable for display.

public ToString ( ) : string
return	string

TryParse() public static method

Tries to parse the given input buffer into a new MimeKit.Header instance.

Parses a header from the specified buffer.

/// is null. /// -or- /// is null. ///

public static TryParse ( ParserOptions options, byte buffer, Header &header ) : bool
options	ParserOptions	The parser options to use.
buffer	byte	The input buffer.
header	Header	The parsed header.
return	bool

TryParse() public static method

Tries to parse the given input buffer into a new MimeKit.Header instance.

Parses a header from the supplied buffer starting at the specified index.

/// is null. /// -or- /// is null. /// /// is out of range. ///

public static TryParse ( ParserOptions options, byte buffer, int startIndex, Header &header ) : bool
options	ParserOptions	The parser options to use.
buffer	byte	The input buffer.
startIndex	int	The starting index of the input buffer.
header	Header	The parsed header.
return	bool

TryParse() public static method

Tries to parse the given input buffer into a new MimeKit.Header instance.

Parses a header from the supplied buffer starting at the given index and spanning across the specified number of bytes.

/// is null. /// -or- /// is null. /// /// and do not specify /// a valid range in the byte array. ///

public static TryParse ( ParserOptions options, byte buffer, int startIndex, int length, Header &header ) : bool
options	ParserOptions	The parser options to use.
buffer	byte	The input buffer.
startIndex	int	The starting index of the input buffer.
length	int	The number of bytes in the input buffer to parse.
header	Header	The parsed header.
return	bool

TryParse() public static method

Tries to parse the given text into a new MimeKit.Header instance.

Parses a header from the specified text.

/// is null. /// -or- /// is null. ///

public static TryParse ( ParserOptions options, string text, Header &header ) : bool
options	ParserOptions	The parser options to use.
text	string	The text to parse.
header	Header	The parsed header.
return	bool

TryParse() public static method

Tries to parse the given input buffer into a new MimeKit.Header instance.

Parses a header from the specified buffer.

/// is null. ///

public static TryParse ( byte buffer, Header &header ) : bool
buffer	byte	The input buffer.
header	Header	The parsed header.
return	bool

TryParse() public static method

Tries to parse the given input buffer into a new MimeKit.Header instance.

Parses a header from the supplied buffer starting at the specified index.

/// is null. /// /// is out of range. ///

public static TryParse ( byte buffer, int startIndex, Header &header ) : bool
buffer	byte	The input buffer.
startIndex	int	The starting index of the input buffer.
header	Header	The parsed header.
return	bool

TryParse() public static method

Tries to parse the given input buffer into a new MimeKit.Header instance.

Parses a header from the supplied buffer starting at the given index and spanning across the specified number of bytes.

/// is null. /// /// and do not specify /// a valid range in the byte array. ///

public static TryParse ( byte buffer, int startIndex, int length, Header &header ) : bool
buffer	byte	The input buffer.
startIndex	int	The starting index of the input buffer.
length	int	The number of bytes in the input buffer to parse.
header	Header	The parsed header.
return	bool

TryParse() public static method

Tries to parse the given text into a new MimeKit.Header instance.

Parses a header from the specified text.

/// is null. ///

public static TryParse ( string text, Header &header ) : bool
text	string	The text to parse.
header	Header	The parsed header.
return	bool

Unfold() public static method

Unfold the specified header value.

Unfolds the header value so that it becomes suitable for display. Since Value is already unfolded, this method is really only needed when working with raw header strings.

public static Unfold ( string text ) : string
text	string	The header text.
return	string