smnb

RFC3629 UTF-8, a transformation format of ISO 10646 (STD: 63)

B0	B1	B2	B3	B4	B5	Unicode	bytes	bits	bit pattern(code point)
00-7F 0xxxxxxx	-	-	-	-	-	U+00 … U+7F	1	7	0xxx xxxx
C2-DF 110y yyyy	80-BF 10xx xxxx	-	-	-	-	U+0080 … U+07FF	2	11	0000 0yyy yyxx xxxx
E0-EF 1110 zzzz	80-BF 10yy yyyy	80-BF 10xx xxxx	-	-	-	U+0800 … U+FFFF	3	16	zzzz yyyy yyxx xxxx
F0-F7 1111 0aaa	80-BF 10zz zzzz	80-BF 10yy yyyy	80-BF 10xx xxxx	-	-	U+010000 … U+1FFFFF	4	21	000a aazz zzzz yyyy yyxx xxxx
F8-FB	80-BF	80-BF	80-BF	80-BF	-	U+00200000 … U+03FFFFFF	5	26
FC-FD	80-BF	80-BF	80-BF	80-BF	80-BF	U+04000000 … U+7FFFFFFF	6	26

UCSとUTF