Java Code Examples for java.text.Bidi#getRunCount()

The following examples show how to use java.text.Bidi#getRunCount() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: BidiUtils.java    From openjdk-8-source with GNU General Public License v2.0 6 votes vote down vote up
/**
 * Return the level of each character into the levels array starting at start.
 * This is a convenience method for clients who prefer to use an explicit levels
 * array instead of iterating over the runs.
 *
 * @param levels the array to receive the character levels
 * @param start the starting offset into the the array
 * @throws IndexOutOfBoundsException if <code>start</code> is less than 0 or
 * <code>start + getLength()</code> is greater than <code>levels.length</code>.
 */
public static void getLevels(Bidi bidi, byte[] levels, int start) {
    int limit = start + bidi.getLength();

    if (start < 0 || limit > levels.length) {
        throw new IndexOutOfBoundsException("levels.length = " + levels.length +
            " start: " + start + " limit: " + limit);
    }

    int runCount = bidi.getRunCount();
    int p = start;
    for (int i = 0; i < runCount; ++i) {
        int rlimit = start + bidi.getRunLimit(i);
        byte rlevel = (byte)bidi.getRunLevel(i);

        while (p < rlimit) {
            levels[p++] = rlevel;
        }
    }
}
 
Example 2
Source File: BidiUtils.java    From jdk8u60 with GNU General Public License v2.0 6 votes vote down vote up
/**
 * Return the level of each character into the levels array starting at start.
 * This is a convenience method for clients who prefer to use an explicit levels
 * array instead of iterating over the runs.
 *
 * @param levels the array to receive the character levels
 * @param start the starting offset into the the array
 * @throws IndexOutOfBoundsException if <code>start</code> is less than 0 or
 * <code>start + getLength()</code> is greater than <code>levels.length</code>.
 */
public static void getLevels(Bidi bidi, byte[] levels, int start) {
    int limit = start + bidi.getLength();

    if (start < 0 || limit > levels.length) {
        throw new IndexOutOfBoundsException("levels.length = " + levels.length +
            " start: " + start + " limit: " + limit);
    }

    int runCount = bidi.getRunCount();
    int p = start;
    for (int i = 0; i < runCount; ++i) {
        int rlimit = start + bidi.getRunLimit(i);
        byte rlevel = (byte)bidi.getRunLevel(i);

        while (p < rlimit) {
            levels[p++] = rlevel;
        }
    }
}
 
Example 3
Source File: BidiUtils.java    From TencentKona-8 with GNU General Public License v2.0 6 votes vote down vote up
/**
 * Return the level of each character into the levels array starting at start.
 * This is a convenience method for clients who prefer to use an explicit levels
 * array instead of iterating over the runs.
 *
 * @param levels the array to receive the character levels
 * @param start the starting offset into the the array
 * @throws IndexOutOfBoundsException if <code>start</code> is less than 0 or
 * <code>start + getLength()</code> is greater than <code>levels.length</code>.
 */
public static void getLevels(Bidi bidi, byte[] levels, int start) {
    int limit = start + bidi.getLength();

    if (start < 0 || limit > levels.length) {
        throw new IndexOutOfBoundsException("levels.length = " + levels.length +
            " start: " + start + " limit: " + limit);
    }

    int runCount = bidi.getRunCount();
    int p = start;
    for (int i = 0; i < runCount; ++i) {
        int rlimit = start + bidi.getRunLimit(i);
        byte rlevel = (byte)bidi.getRunLevel(i);

        while (p < rlimit) {
            levels[p++] = rlevel;
        }
    }
}
 
Example 4
Source File: BidiEmbeddingTest.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up
static void test2() {
    String target = "BACK WARDS";
    String str = "If this text is >" + target + "< the test passed.";
    int length = str.length();
    int start = str.indexOf(target);
    int limit = start + target.length();

    System.out.println("start: " + start + " limit: " + limit);

    AttributedString astr = new AttributedString(str);
    astr.addAttribute(TextAttribute.RUN_DIRECTION, TextAttribute.RUN_DIRECTION_RTL);

    astr.addAttribute(TextAttribute.BIDI_EMBEDDING,
                     new Integer(-3),
                     start,
                     limit);

    Bidi bidi = new Bidi(astr.getIterator());

    for (int i = 0; i < bidi.getRunCount(); ++i) {
        System.out.println("run " + i +
                           " from " + bidi.getRunStart(i) +
                           " to " + bidi.getRunLimit(i) +
                           " at level " + bidi.getRunLevel(i));
    }

    System.out.println(bidi + "\n");

    if (bidi.getRunCount() != 6) { // runs of spaces and angles at embedding bound,s and final period, each get level 1
        throw new Error("Bidi embedding processing failed");
    } else {
        System.out.println("test2() passed.\n");
    }
}
 
Example 5
Source File: Bug8005277.java    From jdk8u_jdk with GNU General Public License v2.0 5 votes vote down vote up
public static void main(String[] args) {
    boolean err = false;
    String string = "\u05D0\u05D1\u05D2";
    Bidi bidi = new Bidi(string, Bidi.DIRECTION_LEFT_TO_RIGHT);

    int result = bidi.getRunCount();
    if (result != 1) {
        System.err.println("Incorrect run count: " + result);
        err = true;
    }

    result = bidi.getRunStart(0);
    if (result != 0) {
        System.err.println("Incorrect run start: " + result);
        err = true;
    }

    result = bidi.getRunLimit(0);
    if (result != 3) {
        System.err.println("Incorrect run limit: " + result);
        err = true;
    }

    result = bidi.getRunLevel(0);
    if (result != 1) {
        System.err.println("Incorrect run level: " + result);
        err = true;
    }

    if (err) {
        throw new RuntimeException("Failed.");
    }
}
 
Example 6
Source File: BidiSurrogateTest.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up
void testBidi(String string, int rtlstart, int rtllength) {
    Bidi bidi = new Bidi(string, Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);
    for (int i = 0; i < bidi.getRunCount(); ++i) {
        if ((bidi.getRunLevel(i) & 1) != 0) {
            if (bidi.getRunStart(i) != rtlstart ||
                bidi.getRunLimit(i) != rtlstart + rtllength) {
                throw new RuntimeException("first rtl run didn't match " + rtlstart + ", " + rtllength);
            }
            break;
        }
    }
}
 
Example 7
Source File: Bug8005277.java    From hottub with GNU General Public License v2.0 5 votes vote down vote up
public static void main(String[] args) {
    boolean err = false;
    String string = "\u05D0\u05D1\u05D2";
    Bidi bidi = new Bidi(string, Bidi.DIRECTION_LEFT_TO_RIGHT);

    int result = bidi.getRunCount();
    if (result != 1) {
        System.err.println("Incorrect run count: " + result);
        err = true;
    }

    result = bidi.getRunStart(0);
    if (result != 0) {
        System.err.println("Incorrect run start: " + result);
        err = true;
    }

    result = bidi.getRunLimit(0);
    if (result != 3) {
        System.err.println("Incorrect run limit: " + result);
        err = true;
    }

    result = bidi.getRunLevel(0);
    if (result != 1) {
        System.err.println("Incorrect run level: " + result);
        err = true;
    }

    if (err) {
        throw new RuntimeException("Failed.");
    }
}
 
Example 8
Source File: BidiEmbeddingTest.java    From jdk8u-dev-jdk with GNU General Public License v2.0 5 votes vote down vote up
static void test2() {
    String target = "BACK WARDS";
    String str = "If this text is >" + target + "< the test passed.";
    int length = str.length();
    int start = str.indexOf(target);
    int limit = start + target.length();

    System.out.println("start: " + start + " limit: " + limit);

    AttributedString astr = new AttributedString(str);
    astr.addAttribute(TextAttribute.RUN_DIRECTION, TextAttribute.RUN_DIRECTION_RTL);

    astr.addAttribute(TextAttribute.BIDI_EMBEDDING,
                     new Integer(-3),
                     start,
                     limit);

    Bidi bidi = new Bidi(astr.getIterator());

    for (int i = 0; i < bidi.getRunCount(); ++i) {
        System.out.println("run " + i +
                           " from " + bidi.getRunStart(i) +
                           " to " + bidi.getRunLimit(i) +
                           " at level " + bidi.getRunLevel(i));
    }

    System.out.println(bidi + "\n");

    if (bidi.getRunCount() != 6) { // runs of spaces and angles at embedding bound,s and final period, each get level 1
        throw new Error("Bidi embedding processing failed");
    } else {
        System.out.println("test2() passed.\n");
    }
}
 
Example 9
Source File: BidiSurrogateTest.java    From openjdk-jdk9 with GNU General Public License v2.0 5 votes vote down vote up
void testBidi(String string, int rtlstart, int rtllength) {
    Bidi bidi = new Bidi(string, Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);
    for (int i = 0; i < bidi.getRunCount(); ++i) {
        if ((bidi.getRunLevel(i) & 1) != 0) {
            if (bidi.getRunStart(i) != rtlstart ||
                bidi.getRunLimit(i) != rtlstart + rtllength) {
                throw new RuntimeException("first rtl run didn't match " + rtlstart + ", " + rtllength);
            }
            break;
        }
    }
}
 
Example 10
Source File: Bug8005277.java    From TencentKona-8 with GNU General Public License v2.0 5 votes vote down vote up
public static void main(String[] args) {
    boolean err = false;
    String string = "\u05D0\u05D1\u05D2";
    Bidi bidi = new Bidi(string, Bidi.DIRECTION_LEFT_TO_RIGHT);

    int result = bidi.getRunCount();
    if (result != 1) {
        System.err.println("Incorrect run count: " + result);
        err = true;
    }

    result = bidi.getRunStart(0);
    if (result != 0) {
        System.err.println("Incorrect run start: " + result);
        err = true;
    }

    result = bidi.getRunLimit(0);
    if (result != 3) {
        System.err.println("Incorrect run limit: " + result);
        err = true;
    }

    result = bidi.getRunLevel(0);
    if (result != 1) {
        System.err.println("Incorrect run level: " + result);
        err = true;
    }

    if (err) {
        throw new RuntimeException("Failed.");
    }
}
 
Example 11
Source File: Bug8005277.java    From jdk8u-jdk with GNU General Public License v2.0 5 votes vote down vote up
public static void main(String[] args) {
    boolean err = false;
    String string = "\u05D0\u05D1\u05D2";
    Bidi bidi = new Bidi(string, Bidi.DIRECTION_LEFT_TO_RIGHT);

    int result = bidi.getRunCount();
    if (result != 1) {
        System.err.println("Incorrect run count: " + result);
        err = true;
    }

    result = bidi.getRunStart(0);
    if (result != 0) {
        System.err.println("Incorrect run start: " + result);
        err = true;
    }

    result = bidi.getRunLimit(0);
    if (result != 3) {
        System.err.println("Incorrect run limit: " + result);
        err = true;
    }

    result = bidi.getRunLevel(0);
    if (result != 1) {
        System.err.println("Incorrect run level: " + result);
        err = true;
    }

    if (err) {
        throw new RuntimeException("Failed.");
    }
}
 
Example 12
Source File: BidiSurrogateTest.java    From openjdk-8-source with GNU General Public License v2.0 5 votes vote down vote up
void testBidi(String string, int rtlstart, int rtllength) {
    Bidi bidi = new Bidi(string, Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);
    for (int i = 0; i < bidi.getRunCount(); ++i) {
        if ((bidi.getRunLevel(i) & 1) != 0) {
            if (bidi.getRunStart(i) != rtlstart ||
                bidi.getRunLimit(i) != rtlstart + rtllength) {
                throw new RuntimeException("first rtl run didn't match " + rtlstart + ", " + rtllength);
            }
            break;
        }
    }
}
 
Example 13
Source File: Bug8005277.java    From dragonwell8_jdk with GNU General Public License v2.0 5 votes vote down vote up
public static void main(String[] args) {
    boolean err = false;
    String string = "\u05D0\u05D1\u05D2";
    Bidi bidi = new Bidi(string, Bidi.DIRECTION_LEFT_TO_RIGHT);

    int result = bidi.getRunCount();
    if (result != 1) {
        System.err.println("Incorrect run count: " + result);
        err = true;
    }

    result = bidi.getRunStart(0);
    if (result != 0) {
        System.err.println("Incorrect run start: " + result);
        err = true;
    }

    result = bidi.getRunLimit(0);
    if (result != 3) {
        System.err.println("Incorrect run limit: " + result);
        err = true;
    }

    result = bidi.getRunLevel(0);
    if (result != 1) {
        System.err.println("Incorrect run level: " + result);
        err = true;
    }

    if (err) {
        throw new RuntimeException("Failed.");
    }
}
 
Example 14
Source File: BidiEmbeddingTest.java    From dragonwell8_jdk with GNU General Public License v2.0 5 votes vote down vote up
static void test2() {
    String target = "BACK WARDS";
    String str = "If this text is >" + target + "< the test passed.";
    int length = str.length();
    int start = str.indexOf(target);
    int limit = start + target.length();

    System.out.println("start: " + start + " limit: " + limit);

    AttributedString astr = new AttributedString(str);
    astr.addAttribute(TextAttribute.RUN_DIRECTION, TextAttribute.RUN_DIRECTION_RTL);

    astr.addAttribute(TextAttribute.BIDI_EMBEDDING,
                     new Integer(-3),
                     start,
                     limit);

    Bidi bidi = new Bidi(astr.getIterator());

    for (int i = 0; i < bidi.getRunCount(); ++i) {
        System.out.println("run " + i +
                           " from " + bidi.getRunStart(i) +
                           " to " + bidi.getRunLimit(i) +
                           " at level " + bidi.getRunLevel(i));
    }

    System.out.println(bidi + "\n");

    if (bidi.getRunCount() != 6) { // runs of spaces and angles at embedding bound,s and final period, each get level 1
        throw new Error("Bidi embedding processing failed");
    } else {
        System.out.println("test2() passed.\n");
    }
}
 
Example 15
Source File: LineLayout.java    From consulo with Apache License 2.0 5 votes vote down vote up
private static void addRunsNoTabs(List<BidiRun> runs, char[] text, int start, int end, int flags) {
  if (start >= end) return;
  Bidi bidi = new Bidi(text, start, null, 0, end - start, flags);
  int runCount = bidi.getRunCount();
  for (int i = 0; i < runCount; i++) {
    addOrMergeRun(runs, new BidiRun((byte)bidi.getRunLevel(i), start + bidi.getRunStart(i), start + bidi.getRunLimit(i)));
  }
}
 
Example 16
Source File: BidiEmbeddingTest.java    From openjdk-jdk8u with GNU General Public License v2.0 4 votes vote down vote up
static void test1() {
    String target = "BACK WARDS";
    String str = "If this text is >" + target + "< the test passed.";
    int start = str.indexOf(target);
    int limit = start + target.length();

    System.out.println("start: " + start + " limit: " + limit);

    AttributedString astr = new AttributedString(str);
    astr.addAttribute(TextAttribute.BIDI_EMBEDDING,
                     new Integer(-1),
                     start,
                     limit);

    Bidi bidi = new Bidi(astr.getIterator());

    for (int i = 0; i < bidi.getRunCount(); ++i) {
        System.out.println("run " + i +
                           " from " + bidi.getRunStart(i) +
                           " to " + bidi.getRunLimit(i) +
                           " at level " + bidi.getRunLevel(i));
    }

    System.out.println(bidi);

    byte[] embs = new byte[str.length() + 3];
    for (int i = start + 1; i < limit + 1; ++i) {
        embs[i] = -1;
    }

    Bidi bidi2 = new Bidi(str.toCharArray(), 0, embs, 1, str.length(), Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);
    for (int i = 0; i < bidi2.getRunCount(); ++i) {
        System.out.println("run " + i +
                           " from " + bidi2.getRunStart(i) +
                           " to " + bidi2.getRunLimit(i) +
                           " at level " + bidi2.getRunLevel(i));
    }

    System.out.println(bidi2 + "\n");

    if (bidi.getRunCount() != 3 || bidi2.getRunCount() != 3) {
        throw new Error("Bidi run count incorrect");
    } else {
        System.out.println("test1() passed.\n");
    }
}
 
Example 17
Source File: BidiEmbeddingTest.java    From openjdk-8-source with GNU General Public License v2.0 4 votes vote down vote up
static void test1() {
    String target = "BACK WARDS";
    String str = "If this text is >" + target + "< the test passed.";
    int start = str.indexOf(target);
    int limit = start + target.length();

    System.out.println("start: " + start + " limit: " + limit);

    AttributedString astr = new AttributedString(str);
    astr.addAttribute(TextAttribute.BIDI_EMBEDDING,
                     new Integer(-1),
                     start,
                     limit);

    Bidi bidi = new Bidi(astr.getIterator());

    for (int i = 0; i < bidi.getRunCount(); ++i) {
        System.out.println("run " + i +
                           " from " + bidi.getRunStart(i) +
                           " to " + bidi.getRunLimit(i) +
                           " at level " + bidi.getRunLevel(i));
    }

    System.out.println(bidi);

    byte[] embs = new byte[str.length() + 3];
    for (int i = start + 1; i < limit + 1; ++i) {
        embs[i] = -1;
    }

    Bidi bidi2 = new Bidi(str.toCharArray(), 0, embs, 1, str.length(), Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);
    for (int i = 0; i < bidi2.getRunCount(); ++i) {
        System.out.println("run " + i +
                           " from " + bidi2.getRunStart(i) +
                           " to " + bidi2.getRunLimit(i) +
                           " at level " + bidi2.getRunLevel(i));
    }

    System.out.println(bidi2 + "\n");

    if (bidi.getRunCount() != 3 || bidi2.getRunCount() != 3) {
        throw new Error("Bidi run count incorrect");
    } else {
        System.out.println("test1() passed.\n");
    }
}
 
Example 18
Source File: BidiUtils.java    From sambox with Apache License 2.0 4 votes vote down vote up
/**
 * Handles the LTR and RTL direction of the given words. The whole implementation stands and falls with the given
 * word. If the word is a full line, the results will be the best. If the word contains of single words or
 * characters, the order of the characters in a word or words in a line may wrong, due to RTL and LTR marks and
 * characters!
 * 
 * Based on http://www.nesterovsky-bros.com/weblog/2013/07/28/VisualToLogicalConversionInJava.aspx
 * 
 * @param text The word that shall be processed
 * @return new word with the correct direction of the containing characters
 */
public static String visualToLogical(String text)
{
    if (!CharUtils.isBlank(text))
    {
        Bidi bidi = new Bidi(text, Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);
        if (!bidi.isLeftToRight())
        {
            // collect individual bidi information
            int runCount = bidi.getRunCount();
            byte[] levels = new byte[runCount];
            Integer[] runs = new Integer[runCount];

            for (int i = 0; i < runCount; i++)
            {
                levels[i] = (byte) bidi.getRunLevel(i);
                runs[i] = i;
            }

            // reorder individual parts based on their levels
            Bidi.reorderVisually(levels, 0, runs, 0, runCount);

            // collect the parts based on the direction within the run
            StringBuilder result = new StringBuilder();

            for (int i = 0; i < runCount; i++)
            {
                int index = runs[i];
                int start = bidi.getRunStart(index);
                int end = bidi.getRunLimit(index);
                int level = levels[index];

                if ((level & 1) != 0)
                {
                    while (--end >= start)
                    {
                        char character = text.charAt(end);
                        if (Character.isMirrored(text.codePointAt(end))
                                && MIRRORING_CHAR_MAP.containsKey(character))
                        {
                            result.append(MIRRORING_CHAR_MAP.get(character));
                        }
                        else
                        {
                            result.append(character);
                        }
                    }
                }
                else
                {
                    result.append(text, start, end);
                }
            }

            return result.toString();
        }
    }
    return text;
}
 
Example 19
Source File: PDFTextStripper.java    From gcs with Mozilla Public License 2.0 4 votes vote down vote up
/**
 * Handles the LTR and RTL direction of the given words. The whole implementation stands and falls with the given
 * word. If the word is a full line, the results will be the best. If the word contains of single words or
 * characters, the order of the characters in a word or words in a line may wrong, due to RTL and LTR marks and
 * characters!
 * 
 * Based on http://www.nesterovsky-bros.com/weblog/2013/07/28/VisualToLogicalConversionInJava.aspx
 * 
 * @param word The word that shall be processed
 * @return new word with the correct direction of the containing characters
 */
private String handleDirection(String word)
{
    Bidi bidi = new Bidi(word, Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);

    // if there is pure LTR text no need to process further
    if (!bidi.isMixed() && bidi.getBaseLevel() == Bidi.DIRECTION_LEFT_TO_RIGHT)
    {
        return word;
    }
    
    // collect individual bidi information
    int runCount = bidi.getRunCount();
    byte[] levels = new byte[runCount];
    Integer[] runs = new Integer[runCount];
  
    for (int i = 0; i < runCount; i++)
    {
       levels[i] = (byte)bidi.getRunLevel(i);
       runs[i] = i;
    }

    // reorder individual parts based on their levels
    Bidi.reorderVisually(levels, 0, runs, 0, runCount);
    
    // collect the parts based on the direction within the run
    StringBuilder result = new StringBuilder();

    for (int i = 0; i < runCount; i++)
    {
       int index = runs[i];
       int start = bidi.getRunStart(index);
       int end = bidi.getRunLimit(index);

        int level = levels[index];

        if ((level & 1) != 0)
        {
            while (--end >= start)
            {
                char character = word.charAt(end);
                if (Character.isMirrored(word.codePointAt(end)))
                {
                    if (MIRRORING_CHAR_MAP.containsKey(character))
                    {
                        result.append(MIRRORING_CHAR_MAP.get(character));
                    }
                    else
                    {
                        result.append(character);
                    }
                }
                else
                {
                    result.append(character);
                }
            }
        }
        else
        {
            result.append(word, start, end);
        }
    }
    
    return result.toString();
}
 
Example 20
Source File: BidiEmbeddingTest.java    From openjdk-jdk8u-backup with GNU General Public License v2.0 4 votes vote down vote up
static void test1() {
    String target = "BACK WARDS";
    String str = "If this text is >" + target + "< the test passed.";
    int start = str.indexOf(target);
    int limit = start + target.length();

    System.out.println("start: " + start + " limit: " + limit);

    AttributedString astr = new AttributedString(str);
    astr.addAttribute(TextAttribute.BIDI_EMBEDDING,
                     new Integer(-1),
                     start,
                     limit);

    Bidi bidi = new Bidi(astr.getIterator());

    for (int i = 0; i < bidi.getRunCount(); ++i) {
        System.out.println("run " + i +
                           " from " + bidi.getRunStart(i) +
                           " to " + bidi.getRunLimit(i) +
                           " at level " + bidi.getRunLevel(i));
    }

    System.out.println(bidi);

    byte[] embs = new byte[str.length() + 3];
    for (int i = start + 1; i < limit + 1; ++i) {
        embs[i] = -1;
    }

    Bidi bidi2 = new Bidi(str.toCharArray(), 0, embs, 1, str.length(), Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);
    for (int i = 0; i < bidi2.getRunCount(); ++i) {
        System.out.println("run " + i +
                           " from " + bidi2.getRunStart(i) +
                           " to " + bidi2.getRunLimit(i) +
                           " at level " + bidi2.getRunLevel(i));
    }

    System.out.println(bidi2 + "\n");

    if (bidi.getRunCount() != 3 || bidi2.getRunCount() != 3) {
        throw new Error("Bidi run count incorrect");
    } else {
        System.out.println("test1() passed.\n");
    }
}