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package sun.io;

The SJIS converters follow the Shift JIS definition in the JIS
X0208:1997 standard as much as possible. The MS932 converters must
be used where the Microsoft Code Page 932 character repertoire and
Unicode mappings are required.
Author:
Limin Shi, Mark Son-Bell/**
 * The SJIS converters follow the Shift JIS definition in the JIS
 * X0208:1997 standard as much as possible. The MS932 converters must
 * be used where the Microsoft Code Page 932 character repertoire and
 * Unicode mappings are required.
 *
 * @author Limin Shi
 * @author Mark Son-Bell
 */

public class ByteToCharSJIS extends ByteToCharJIS0208 {
    ByteToCharJIS0201 bcJIS0201 = new ByteToCharJIS0201();

    public String getCharacterEncoding() {
        return "SJIS";
    }

    protected char convSingleByte(int b) {
        // If the high bits are all off, it's ASCII == Unicode
        if ((b & 0xFF80) == 0) {
            return (char)b;
        }
        return bcJIS0201.getUnicode(b);
    }

    protected char getUnicode(int c1, int c2) {
        int adjust = c2 < 0x9F ? 1 : 0;
        int rowOffset = c1 < 0xA0 ? 0x70 : 0xB0;
        int cellOffset = (adjust == 1) ? (c2 > 0x7F ? 0x20 : 0x1F) : 0x7E;
        int b1 = ((c1 - rowOffset) << 1) - adjust;
        int b2 = c2 - cellOffset;
        return super.getUnicode(b1, b2);
    }

    String prt(int i) {
        return Integer.toString(i,16);
    }
}