org.jcodings.specific.BaseSJISEncoding Maven / Gradle / Ivy
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*
* The above copyright notice and this permission notice shall be included in all
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*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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package org.jcodings.specific;
import org.jcodings.CanBeTrailTableEncoding;
import org.jcodings.CodeRange;
import org.jcodings.IntHolder;
import org.jcodings.ascii.AsciiTables;
import org.jcodings.constants.CharacterType;
import org.jcodings.exception.ErrorCodes;
import org.jcodings.exception.ErrorMessages;
import org.jcodings.exception.InternalException;
import org.jcodings.util.BytesHash;
abstract class BaseSJISEncoding extends CanBeTrailTableEncoding {
protected BaseSJISEncoding(String name, int[][]Trans) {
super(name, 1, 2, SjisEncLen, Trans, AsciiTables.AsciiCtypeTable, SJIS_CAN_BE_TRAIL_TABLE);
}
@Override
public String getCharsetName() {
return "windows-31j";
}
@Override
public int mbcToCode(byte[]bytes, int p, int end) {
return mbnMbcToCode(bytes, p, end);
}
@Override
public int codeToMbcLength(int code) {
if (code < 256) {
return SjisEncLen[code] == 1 ? 1 : ErrorCodes.ERR_INVALID_CODE_POINT_VALUE;
} else if (code <= 0xffff) {
int low = code & 0xff;
if (!SJIS_ISMB_TRAIL(low)) {
return ErrorCodes.ERR_INVALID_CODE_POINT_VALUE;
}
return 2;
} else {
return ErrorCodes.ERR_INVALID_CODE_POINT_VALUE;
}
}
private static boolean SJIS_ISMB_TRAIL(int code) {
return SJIS_CAN_BE_TRAIL_TABLE[code];
}
@Override
public int codeToMbc(int code, byte[]bytes, int p) {
int p_ = p;
if ((code & 0xff00) != 0) bytes[p_++] = (byte)(((code >> 8) & 0xff));
bytes[p_++] = (byte)(code & 0xff);
return p_ - p;
}
private static int getLowerCase(int code) {
if (isInRange(code, 0x8260, 0x8279)) {
return code + 0x0021;
} else if (isInRange(code, 0x839f, 0x83b6)) {
return code + 0x0020;
} else if (isInRange(code, 0x8440, 0x8460)) {
int d = code >= 0x844f ? 1 : 0;
return code + (0x0030 + d);
}
return code;
}
@Override
public int mbcCaseFold(int flag, byte[]bytes, IntHolder pp, int end, byte[]lower) {
if (isAscii(bytes[pp.value])) {
return asciiMbcCaseFold(flag, bytes, pp, end, lower);
} else {
int lowerP = 0;
int code = getLowerCase(mbcToCode(bytes, pp.value, end));
int len = codeToMbc(code, lower, lowerP);
pp.value += len;
return len;
}
}
private static final int CR_Hiragana[] = {
1,
0x829f, 0x82f1
}; /* CR_Hiragana */
private static final int CR_Katakana[] = {
4,
0x00a6, 0x00af,
0x00b1, 0x00dd,
0x8340, 0x837e,
0x8380, 0x8396,
}; /* CR_Katakana */
private static final int PropertyList[][] = new int[][] {
CR_Hiragana,
CR_Katakana
};
private static final BytesHash CTypeNameHash = new BytesHash();
static {
CTypeNameHash.put("Hiragana".getBytes(), 1 + CharacterType.MAX_STD_CTYPE);
CTypeNameHash.put("Katakana".getBytes(), 2 + CharacterType.MAX_STD_CTYPE);
}
@Override
public int propertyNameToCType(byte[]bytes, int p, int end) {
Integer ctype;
if ((ctype = CTypeNameHash.get(bytes, p, end)) == null) {
return super.propertyNameToCType(bytes, p, end);
}
return ctype;
}
@Override
public boolean isCodeCType(int code, int ctype) {
if (ctype <= CharacterType.MAX_STD_CTYPE) {
if (code < 128) {
// ctype table is configured with ASCII
return isCodeCTypeInternal(code, ctype);
} else {
if (isWordGraphPrint(ctype)) {
return true;
}
}
} else {
ctype -= (CharacterType.MAX_STD_CTYPE + 1);
if (ctype >= PropertyList.length) throw new InternalException(ErrorMessages.ERR_TYPE_BUG);
return CodeRange.isInCodeRange(PropertyList[ctype], code);
}
return false;
}
@Override
public int[]ctypeCodeRange(int ctype, IntHolder sbOut) {
if (ctype <= CharacterType.MAX_STD_CTYPE) {
return null;
} else {
sbOut.value = 0x80;
ctype -= (CharacterType.MAX_STD_CTYPE + 1);
if (ctype >= PropertyList.length) throw new InternalException(ErrorMessages.ERR_TYPE_BUG);
return PropertyList[ctype];
}
}
static final boolean SJIS_CAN_BE_TRAIL_TABLE[] = {
false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false,
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, false,
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true,
true, true, true, true, true, true, true, true, true, true, true, true, true, false, false, false
};
static final int SjisEncLen[] = {
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1
};
}
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