1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 /*
  27 *******************************************************************************
  28 *   Copyright (C) 2001-2010, International Business Machines
  29 *   Corporation and others.  All Rights Reserved.
  30 *******************************************************************************
  31 */
  32 /* Written by Simon Montagu, Matitiahu Allouche
  33  * (ported from C code written by Markus W. Scherer)
  34  */
  35 
  36 package sun.text.bidi;
  37 
  38 import sun.text.normalizer.UCharacter;
  39 import sun.text.normalizer.UTF16;
  40 
  41 final class BidiWriter {
  42 
  43     /** Bidi control code points */
  44     static final char LRM_CHAR = 0x200e;
  45     static final char RLM_CHAR = 0x200f;
  46     static final int MASK_R_AL = (1 << UCharacter.RIGHT_TO_LEFT |
  47                                   1 << UCharacter.RIGHT_TO_LEFT_ARABIC);
  48 
  49     private static boolean IsCombining(int type) {
  50         return ((1<<type &
  51                 (1<<UCharacter.NON_SPACING_MARK |
  52                  1<<UCharacter.COMBINING_SPACING_MARK |
  53                  1<<UCharacter.ENCLOSING_MARK)) != 0);
  54     }
  55 
  56     /*
  57      * When we have OUTPUT_REVERSE set on writeReordered(), then we
  58      * semantically write RTL runs in reverse and later reverse them again.
  59      * Instead, we actually write them in forward order to begin with.

   1 /*
   2  * Copyright (c) 2015, 2020, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 /*
  27 *******************************************************************************
  28 *   Copyright (C) 2001-2010, International Business Machines
  29 *   Corporation and others.  All Rights Reserved.
  30 *******************************************************************************
  31 */
  32 /* Written by Simon Montagu, Matitiahu Allouche
  33  * (ported from C code written by Markus W. Scherer)
  34  */
  35 
  36 package jdk.internal.icu.text;
  37 
  38 import jdk.internal.icu.lang.UCharacter;

  39 
  40 final class BidiWriter {
  41 
  42     /** Bidi control code points */
  43     static final char LRM_CHAR = 0x200e;
  44     static final char RLM_CHAR = 0x200f;
  45     static final int MASK_R_AL = (1 << UCharacter.RIGHT_TO_LEFT |
  46                                   1 << UCharacter.RIGHT_TO_LEFT_ARABIC);
  47 
  48     private static boolean IsCombining(int type) {
  49         return ((1<<type &
  50                 (1<<UCharacter.NON_SPACING_MARK |
  51                  1<<UCharacter.COMBINING_SPACING_MARK |
  52                  1<<UCharacter.ENCLOSING_MARK)) != 0);
  53     }
  54 
  55     /*
  56      * When we have OUTPUT_REVERSE set on writeReordered(), then we
  57      * semantically write RTL runs in reverse and later reverse them again.
  58      * Instead, we actually write them in forward order to begin with.