1 /*
   2  * Copyright (c) 2009, 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) 2001-2014, 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 java.text.Bidi;
  39 import java.util.Arrays;
  40 
  41 final class BidiLine {
  42 
  43     /*
  44      * General remarks about the functions in this file:
  45      *
  46      * These functions deal with the aspects of potentially mixed-directional
  47      * text in a single paragraph or in a line of a single paragraph
  48      * which has already been processed according to
  49      * the Unicode 3.0 Bidi algorithm as defined in
  50      * http://www.unicode.org/unicode/reports/tr9/ , version 13,
  51      * also described in The Unicode Standard, Version 4.0.1 .
  52      *
  53      * This means that there is a Bidi object with a levels
  54      * and a dirProps array.
  55      * paraLevel and direction are also set.
  56      * Only if the length of the text is zero, then levels==dirProps==NULL.

   1 /*
   2  * Copyright (c) 2009, 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) 2001-2014, 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 java.text.Bidi;
  39 import java.util.Arrays;
  40 
  41 final class BidiLine {
  42 
  43     /*
  44      * General remarks about the functions in this file:
  45      *
  46      * These functions deal with the aspects of potentially mixed-directional
  47      * text in a single paragraph or in a line of a single paragraph
  48      * which has already been processed according to
  49      * the Unicode 3.0 Bidi algorithm as defined in
  50      * http://www.unicode.org/unicode/reports/tr9/ , version 13,
  51      * also described in The Unicode Standard, Version 4.0.1 .
  52      *
  53      * This means that there is a Bidi object with a levels
  54      * and a dirProps array.
  55      * paraLevel and direction are also set.
  56      * Only if the length of the text is zero, then levels==dirProps==NULL.