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C# in a Nutshell by Peter Drayton, Ted Neward, Ben Albahari

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Name

UTF7Encoding

Synopsis

This class encodes Unicode characters as UTF-7, 7-bit characters. UTF-7 is a Unicode Transformation of the US-ASCII character set, designed for safe use over common Internet mail and news gateways. RFC 2152, which defines UTF-7, specifies an optional set of characters in the character set, which may or may not be encoded, because they may interfere with mail-transfer header fields. The overloaded constructor has two forms that take this into account. With no arguments, the encoding object disallows the use of optional characters (such as exclamation points and dollar signs). With a single boolean argument set to true, these optional characters are allowed in the encoding.

public class UTF7Encoding : Encoding {
// Public Constructors
   public method UTF7Encoding();  
   public method UTF7Encoding(bool allowOptionals);  
// Public Instance Methods
   public override method int GetByteCount(char[] chars,         // overrides Encoding
        int index, int count);  
   public override method int GetBytes(char[] chars,             // overrides Encoding
        int charIndex, int charCount, byte[] bytes, 
        int byteIndex);  
   public override method int GetCharCount(byte[] bytes,         // overrides Encoding
        int index, int count);  
   public override method int GetChars(byte[] bytes,             // overrides Encoding
        int byteIndex, int byteCount, char[] chars, 
        int charIndex);  
   public override method Decoder GetDecoder();                  // overrides Encoding
   public override method Encoder GetEncoder();                  // overrides Encoding
   public override method int GetMaxByteCount ...

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