96 struct UTF8 {  struct
97     typedef CharType Ch;
99     enum { supportUnicode = 1 };
102     static void Encode(OutputStream& os, unsigned codepoint) {  in Encode()
124     static void EncodeUnsafe(OutputStream& os, unsigned codepoint) {  in EncodeUnsafe()
146     static bool Decode(InputStream& is, unsigned* codepoint) {  in Decode()
179     static bool Validate(InputStream& is, OutputStream& os) {  in Validate()
204     static unsigned char GetRange(unsigned char c) {  in GetRange()
223     static CharType TakeBOM(InputByteStream& is) {  in TakeBOM()
236     static Ch Take(InputByteStream& is) {  in Take()
242     static void PutBOM(OutputByteStream& os) {  in PutBOM()
250     static void Put(OutputByteStream& os, Ch c) {  in Put()