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RFC2279 (January 1998) UTF-8, a transformation format of ISO 10646

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UTF-8 �̕��R�[�h�� 1�`6 �I�N�e�b�g�i�o�C�g�j�̊ԂŉρB
UCS-2 �� U+0000 �` U+007F �̕��R�[�h�͕ϊ��Ȃ��B �� 0 �̏�ʃo�C�g��؂�̂Ă��A1�o�C�g�ɏk�߂��B��̂݁A�ŏ�ʃr�b�g�� 0�B
UCS-2 & UCS-4 �� U+0080 �ȍ~�̕��́A��̋K��ŕϊ��A��ɍŏ�ʃr�b�g�� 1 �ɂȂ�B
UTF-8 �� 2�o�C�g�ȏ�̕��́A��1�o�C�g�ڂ̍ŏ�ʂ��o�C�g�� 1 ��A0 �ŏI��B
2�o�C�g�ȍ~�́A��ɍŏ�� 2�r�b�g�� 10 �ɂȂ�B

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**UTF-8 Byte Sequences**
UCS			UTF-8
	Code Points	Scalar Value	1st Byte	2nd Byte	3rd Byte	4th Byte	5th Byte	6th Byte
UCS-2	U+0000..U+007F	`0000 0000 0yyy xxxx`	00..7F `0yyyxxxx`		�@	�@	�@	�@
	U+0080..U+07FF	`0000 0zzz yyyy xxxx`	C2..DF `110zzzyy`	80..BF `10yyxxxx`		�@	�@	�@
	U+0800..U+0FFF	`0000 1zzz yyyy xxxx`	E0 `11100000`	A0..BF `101zzzyy`	80..BF `10yyxxxx`		�@	�@
	U+1000..0xD7FF, 0xE000..U+FFFF *	`uuuu zzzz yyyy xxxx`	E1..EF `1110uuuu`	80..BF `10zzzzyy`	80..BF `10yyxxxx`		�@	�@
UCS-4	U+10000..U+3FFFF	`00vv uuuu zzzz yyyy xxxx`	F0 `11110000`	90..BF `10vvuuuu`	80..BF `10zzzzyy`	80..BF `10yyxxxx`		�@
	U+40000..U+FFFFF	`vvvv uuuu zzzz yyyy xxxx`	F1..F3 `111100vv`	80..BF `10vvuuuu`	80..BF `10zzzzyy`	80..BF `10yyxxxx`		�@
	U+100000..U+10FFFF	`0001 0000 uuuu zzzz yyyy xxxx`	F4 `11110100`	80..8F `1000uuuu`	80..BF `10zzzzyy`	80..BF `10yyxxxx`		�@
	U+110000..U+1FFFFF	`0001 vvvv uuuu zzzz yyyy xxxx`	F5..F7 `111101vv`	80..BF? `10vvuuuu`	80..BF `10zzzzyy`	80..BF `10yyxxxx`		�@
	U+200000..U+3FFFFFF	`00ss wwww vvvv uuuu zzzz yyyy xxxx`	F8..FB `111110ss`	80..BF? `10wwwwvv`	80..BF `10vvuuuu`	80..BF `10zzzzyy`	80..BF `10yyxxxx`
	U+4000000..U+7FFFFFFF	`0ttt ssss wwww vvvv uuuu zzzz yyyy xxxx`	FC..FD `1111110t`	80..BF? `10ttssss`	80..BF `10wwwwvv`	80..BF `10vvuuuu`	80..BF `10zzzzyy`	80..BF `10yyxxxx`

* U+D800..U+DC00: Surrogate Code Point.

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RFCs

RFC2152 (May 1997) UTF-7, A Mail-Safe Transformation Format of Unicode (Obsoletes: RFC1642)
RFC2279 (January 1998) UTF-8, a transformation format of ISO 10646 (Obsoletes: RFC2044)
RFC2482 (January 1999) Language Tagging in Unicode Plain Text
RFC2781 (February 2000) UTF-16, an encoding of ISO 10646

Unicode.org

Unicode Technical Report #17 Character Encoding Model http://www.unicode.org/unicode/reports/tr17/
FAQ - UTF and BOM http://www.unicode.org/unicode/faq/utf_bom.html
The Unicode Standard, Version 3.0�̐��\ Corrigendum to Unicode 3.0.1 http://www.unicode.org/unicode/uni2errata/UTF-8_Corrigendum.html�iUTF-8 �Ȃǂ̉��ڂ��Ă��j
UTF-8 �ŋL�q��ꂽ�y�[�W�̗� Tenth International Unicode Conference - Unicode UTF-8 http://www.unicode.org/iuc/iuc10/x-utf8.html

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Multilingual Support in Internet/IT Applications http://www.terena.nl/multiling/ - UNICODE - Universal Character Set http://www.terena.nl/multiling/unicode/
�� Extended UCS-2 Encoding Form (UTF-16) http://www.terena.nl/multiling/unicode/utf16.html �Ƃ��B

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