Shift-JIS

Shift-JIS (SJIS) is a Codage of characters for the Japanese language, developed by Microsoft. As its name indicates it, it is based on the encoding ISO-2022-JP (JIS), but with a number more important of bytes allowing the use of 64 Katakana between the codes Hexadécimal 0xA0 and 0xDF.

Contrary to JIS, Shift-JIS a medium of 8 Bit S for the transmission requires. However, vis-a-vis the format 8 bits EUC, Shift-JIS guarantees only that the first byte will be most of the code ASCII; the value of the second byte can then be unspecified. This makes difficult a sure detection of this coding.

For a code JIS of two bytes $j\_1\; j\_2$, the transformation towards the code Shift-JIS correspondents $s\_1\; s\_2$ is:

$33\; \backslash \; the\; j\_1\; \backslash \; the\; 96\; \backslash \; Rightarrow\; s\_1\; =\; \backslash \; frac\; \{j\_1\; +\; 1\}\; \{2\}\; +\; 112$

$97\; \backslash \; the\; j\_1\; \backslash \; the\; 126\; \backslash \; Rightarrow\; s\_1\; =\; \backslash \; frac\; \{j\_1\; +\; 1\}\; \{2\}\; +\; 176$

$j\_1\; \backslash \; mbox\; \{is\; odd\}\; \backslash \; Rightarrow\; s\_2\; =\; j\_2\; +\; 31\; +\; \backslash \; operatorname\; \{trunc\}\; \backslash \; left\; (\backslash \; frac\; \{j\_2\}\; \{95\}\; \backslash \; right)$

$j\_1\; \backslash \; mbox\; \{is\; even\}\; \backslash \; Rightarrow\; s\_2\; =\; j\_2\; +\; 126$

Shift-JIS is used primarily in the Japanese Web pages, but, generally, the formats ISO-2022-JP and Unicode (and more particularly in its representation UTF-8) are preferable.

See too

Internal bonds

• ISO 646 , ASCII

External bonds

• Ping : Coding of Japanese texts (in)

Random links:

Andre Kaspi | Nissa bleated it | Valorous Inhabitant of Li2ege | Carmiano | Jill Scott | Ornithine

© 2007-2008 speedlook.com; article text available under the terms of GFDL, from fr.wikipedia.org