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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Kohei TAKETA (Java port)
* Aaron Madlon-Kay (emoji fix)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
package org.mozilla.universalchardet.prober.statemachine;
import static org.mozilla.universalchardet.prober.statemachine.PkgInt.INDEX_SHIFT_4BITS;
import static org.mozilla.universalchardet.prober.statemachine.PkgInt.SHIFT_MASK_4BITS;
import static org.mozilla.universalchardet.prober.statemachine.PkgInt.BIT_SHIFT_4BITS;
import static org.mozilla.universalchardet.prober.statemachine.PkgInt.UNIT_MASK_4BITS;
import org.mozilla.universalchardet.Constants;
public class UTF8SMModel extends SMModel {
////////////////////////////////////////////////////////////////
// constants
////////////////////////////////////////////////////////////////
public static final int UTF8_CLASS_FACTOR = 16;
////////////////////////////////////////////////////////////////
// methods
////////////////////////////////////////////////////////////////
public UTF8SMModel() {
super(
new PkgInt(INDEX_SHIFT_4BITS, SHIFT_MASK_4BITS, BIT_SHIFT_4BITS, UNIT_MASK_4BITS, utf8ClassTable),
UTF8_CLASS_FACTOR,
new PkgInt(INDEX_SHIFT_4BITS, SHIFT_MASK_4BITS, BIT_SHIFT_4BITS, UNIT_MASK_4BITS, utf8StateTable),
utf8CharLenTable,
Constants.CHARSET_UTF_8
);
}
////////////////////////////////////////////////////////////////
// constants continued
////////////////////////////////////////////////////////////////
private static int[] utf8ClassTable = new int[] {
// PkgInt.pack4bits(0,1,1,1,1,1,1,1), // 00 - 07
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 00 - 07 //allow 0x00 as a legal value
PkgInt.pack4bits(1,1,1,1,1,1,0,0), // 08 - 0f
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 10 - 17
PkgInt.pack4bits(1,1,1,0,1,1,1,1), // 18 - 1f
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 20 - 27
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 28 - 2f
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 30 - 37
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 38 - 3f
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 40 - 47
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 48 - 4f
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 50 - 57
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 58 - 5f
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 60 - 67
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 68 - 6f
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 70 - 77
PkgInt.pack4bits(1,1,1,1,1,1,1,1), // 78 - 7f
PkgInt.pack4bits(2,2,2,2,3,3,3,3), // 80 - 87
PkgInt.pack4bits(4,4,4,4,4,4,4,4), // 88 - 8f
PkgInt.pack4bits(4,4,4,4,4,4,4,4), // 90 - 97
PkgInt.pack4bits(4,4,4,4,4,4,4,4), // 98 - 9f
PkgInt.pack4bits(5,5,5,5,5,5,5,5), // a0 - a7
PkgInt.pack4bits(5,5,5,5,5,5,5,5), // a8 - af
PkgInt.pack4bits(5,5,5,5,5,5,5,5), // b0 - b7
PkgInt.pack4bits(5,5,5,5,5,5,5,5), // b8 - bf
PkgInt.pack4bits(0,0,6,6,6,6,6,6), // c0 - c7
PkgInt.pack4bits(6,6,6,6,6,6,6,6), // c8 - cf
PkgInt.pack4bits(6,6,6,6,6,6,6,6), // d0 - d7
PkgInt.pack4bits(6,6,6,6,6,6,6,6), // d8 - df
PkgInt.pack4bits(7,8,8,8,8,8,8,8), // e0 - e7
PkgInt.pack4bits(8,8,8,8,8,9,8,8), // e8 - ef
PkgInt.pack4bits(10,11,11,11,11,11,11,11), // f0 - f7
PkgInt.pack4bits(12,13,13,13,14,15,0,0) // f8 - ff
};
private static int[] utf8StateTable = new int[] {
PkgInt.pack4bits(ERROR,START,ERROR,ERROR,ERROR,ERROR, 12, 10),//00-07
PkgInt.pack4bits( 9, 11, 8, 7, 6, 5, 4, 3),//08-0f
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR),//10-17
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR),//18-1f
PkgInt.pack4bits(ITSME,ITSME,ITSME,ITSME,ITSME,ITSME,ITSME,ITSME),//20-27
PkgInt.pack4bits(ITSME,ITSME,ITSME,ITSME,ITSME,ITSME,ITSME,ITSME),//28-2f
PkgInt.pack4bits(ERROR,ERROR, 5, 5, 5, 5,ERROR,ERROR),//30-37
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR),//38-3f
PkgInt.pack4bits(ERROR,ERROR,ERROR, 5, 5, 5,ERROR,ERROR),//40-47
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR),//48-4f
PkgInt.pack4bits(ERROR,ERROR, 7, 7, 7, 7,ERROR,ERROR),//50-57
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR),//58-5f
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR, 7, 7,ERROR,ERROR),//60-67
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR),//68-6f
PkgInt.pack4bits(ERROR,ERROR, 9, 9, 9, 9,ERROR,ERROR),//70-77
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR),//78-7f
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR, 9, 9,ERROR,ERROR),//80-87 // Allow emoji
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR),//88-8f
PkgInt.pack4bits(ERROR,ERROR, 12, 12, 12, 12,ERROR,ERROR),//90-97
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR),//98-9f
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR, 12,ERROR,ERROR),//a0-a7
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR),//a8-af
PkgInt.pack4bits(ERROR,ERROR, 12, 12, 12,ERROR,ERROR,ERROR),//b0-b7
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR),//b8-bf
PkgInt.pack4bits(ERROR,ERROR,START,START,START,START,ERROR,ERROR),//c0-c7
PkgInt.pack4bits(ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR,ERROR) //c8-cf
};
private static int[] utf8CharLenTable = new int[] {
0, 1, 0, 0, 0, 0, 2, 3,
3, 3, 4, 4, 5, 5, 6, 6
};
}
