org.jcodings.specific.BaseEUCJPEncoding Maven / Gradle / Ivy
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Byte based encoding support library for java
/*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* 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
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.jcodings.specific;
import org.jcodings.CodeRange;
import org.jcodings.Config;
import org.jcodings.EucEncoding;
import org.jcodings.IntHolder;
import org.jcodings.ascii.AsciiTables;
import org.jcodings.constants.CharacterType;
import org.jcodings.exception.EncodingException;
import org.jcodings.exception.ErrorMessages;
import org.jcodings.exception.InternalException;
import org.jcodings.util.CaseInsensitiveBytesHash;
abstract class BaseEUCJPEncoding extends EucEncoding {
protected BaseEUCJPEncoding(int[][]Trans) {
super("EUC-JP", 1, 3, EUCJPEncLen, Trans, AsciiTables.AsciiCtypeTable);
}
@Override
public int mbcToCode(byte[]bytes, int p, int end) {
return mbnMbcToCode(bytes, p, end);
}
@Override
public int codeToMbcLength(int code) {
if (isAscii(code)) return 1;
if (Config.VANILLA) {
if ((code & 0xff0000) != 0) return 3;
if ((code & 0xff00) != 0) return 2;
} else {
if (code > 0x00ffffff) {
throw new EncodingException(ErrorMessages.ERR_TOO_BIG_WIDE_CHAR_VALUE);
}
else if ((code & 0xff808080) == 0x00808080) return 3;
else if ((code & 0xffff8080) == 0x00008080) return 2;
}
throw new EncodingException(ErrorMessages.ERR_INVALID_CODE_POINT_VALUE);
}
@Override
public int codeToMbc(int code, byte[]bytes, int p) {
int p_ = p;
if ((code & 0xff0000) != 0) bytes[p_++] = (byte)((code >> 16) & 0xff); // need mask here ??
if ((code & 0xff00) != 0) bytes[p_++] = (byte)((code >> 8) & 0xff);
bytes[p_++] = (byte)(code & 0xff);
if (length(bytes, p, p_) != p_ - p) throw new EncodingException(ErrorMessages.ERR_INVALID_CODE_POINT_VALUE);
return p_ - p;
}
@Override
public int mbcCaseFold(int flag, byte[]bytes, IntHolder pp, int end, byte[]lower) {
int p = pp.value;
int lowerP = 0;
if (isMbcAscii(bytes[p])) {
lower[lowerP] = AsciiTables.ToLowerCaseTable[bytes[p] & 0xff];
pp.value++;
return 1;
} else {
int len = length(bytes, p, end);
for (int i=0; i 0xfe - 0xa1;
}
@Override
public boolean isReverseMatchAllowed(byte[]bytes, int p, int end) {
int c = bytes[p] & 0xff;
return c <= 0x7e || c == 0x8e || c == 0x8f;
}
private static final int CR_Hiragana[] = {
1,
0xa4a1, 0xa4f3
}; /* CR_Hiragana */
private static final int CR_Katakana[] = {
3,
0xa5a1, 0xa5f6,
0xaaa6, 0xaaaf,
0xaab1, 0xaadd
}; /* CR_Katakana */
private static final int PropertyList[][] = new int[][] {
CR_Hiragana,
CR_Katakana
};
private static final CaseInsensitiveBytesHash CTypeNameHash = new CaseInsensitiveBytesHash();
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 codeToMbcLength(code) > 1;
}
}
} 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 int EUCJPEncLen[] = {
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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
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,
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, 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, 2, 1
};
}
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