Package com.ibm.icu.text

Examples of com.ibm.icu.text.UCharacterIterator

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    /**
    * Testing cloning
    */
    public void TestClone() throws CloneNotSupportedException
    {
         UCharacterIterator iterator = UCharacterIterator.getInstance("testing");
         UCharacterIterator cloned = (UCharacterIterator)iterator.clone();
         int completed = 0;
         while (completed != UCharacterIterator.DONE) {
            completed = iterator.next();
            if (completed != cloned.next()) {
                errln("Cloned operation failed");
            }
         }
    }
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    /**
     * Testing iteration
     */
    public void TestIteration()
    {
        UCharacterIterator iterator  = UCharacterIterator.getInstance(
                                                       ITERATION_STRING_);
        UCharacterIterator iterator2 = UCharacterIterator.getInstance(
                                                       ITERATION_STRING_);
        iterator.setToStart();                                              
        if (iterator.current() != ITERATION_STRING_.charAt(0)) {
            errln("Iterator failed retrieving first character");
        }
        iterator.setToLimit();
        if (iterator.previous() != ITERATION_STRING_.charAt(
                                       ITERATION_STRING_.length() - 1)) {
            errln("Iterator failed retrieving last character");
        }                                              
        if (iterator.getLength() != ITERATION_STRING_.length()) {
            errln("Iterator failed determining begin and end index");
        } 
        iterator2.setIndex(0);
        iterator.setIndex(0);
        int ch = 0;
        while (ch != UCharacterIterator.DONE) {
            int index = iterator2.getIndex();
            ch = iterator2.nextCodePoint();
            if (index != ITERATION_SUPPLEMENTARY_INDEX) {
                if (ch != (int)iterator.next() &&
                    ch != UCharacterIterator.DONE) {
                    errln("Error mismatch in next() and nextCodePoint()");
                }
            }
            else {
                if (UTF16.getLeadSurrogate(ch) != iterator.next() ||
                    UTF16.getTrailSurrogate(ch) != iterator.next()) {
                    errln("Error mismatch in next and nextCodePoint for " +
                          "supplementary characters");
                }
            }
        }
        iterator.setIndex(ITERATION_STRING_.length());
        iterator2.setIndex(ITERATION_STRING_.length());
        while (ch != UCharacterIterator.DONE) {
            int index = iterator2.getIndex();
            ch = iterator2.previousCodePoint();
            if (index != ITERATION_SUPPLEMENTARY_INDEX) {
                if (ch != (int)iterator.previous() &&
                    ch != UCharacterIterator.DONE) {
                    errln("Error mismatch in previous() and " +
                          "previousCodePoint()");
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     *            too small for the output.
     */
    public static int compress(String source, byte buffer[], int offset)
    {
        int prev = 0;
        UCharacterIterator iterator = UCharacterIterator.getInstance(source);
        int codepoint = iterator.nextCodePoint();
        while (codepoint != UCharacterIterator.DONE) {
            if (prev < 0x4e00 || prev >= 0xa000) {
                prev = (prev & ~0x7f) - SLOPE_REACH_NEG_1_;
            }
            else {
                // Unihan U+4e00..U+9fa5:
                // double-bytes down from the upper end
                prev = 0x9fff - SLOPE_REACH_POS_2_;
            }
       
            offset = writeDiff(codepoint - prev, buffer, offset);
            prev = codepoint;
            codepoint = iterator.nextCodePoint();
        }
        return offset;
    }
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     */
    public static int getCompressionLength(String source)
    {
        int prev = 0;
        int result = 0;
        UCharacterIterator iterator =  UCharacterIterator.getInstance(source);
        int codepoint = iterator.nextCodePoint();
        while (codepoint != UCharacterIterator.DONE) {
            if (prev < 0x4e00 || prev >= 0xa000) {
                prev = (prev & ~0x7f) - SLOPE_REACH_NEG_1_;
            }
            else {
                // Unihan U+4e00..U+9fa5:
                // double-bytes down from the upper end
                prev = 0x9fff - SLOPE_REACH_POS_2_;
            }
       
            codepoint = iterator.nextCodePoint();
            result += lengthOfDiff(codepoint - prev);
            prev = codepoint;
        }
        return result;
    }
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     *            too small for the output.
     */
    public static int compress(String source, byte buffer[], int offset)
    {
        int prev = 0;
        UCharacterIterator iterator = UCharacterIterator.getInstance(source);
        int codepoint = iterator.nextCodePoint();
        while (codepoint != UCharacterIterator.DONE) {
            if (prev < 0x4e00 || prev >= 0xa000) {
                prev = (prev & ~0x7f) - SLOPE_REACH_NEG_1_;
            }
            else {
                // Unihan U+4e00..U+9fa5:
                // double-bytes down from the upper end
                prev = 0x9fff - SLOPE_REACH_POS_2_;
            }
       
            offset = writeDiff(codepoint - prev, buffer, offset);
            prev = codepoint;
            codepoint = iterator.nextCodePoint();
        }
        return offset;
    }
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     */
    public static int getCompressionLength(String source)
    {
        int prev = 0;
        int result = 0;
        UCharacterIterator iterator =  UCharacterIterator.getInstance(source);
        int codepoint = iterator.nextCodePoint();
        while (codepoint != UCharacterIterator.DONE) {
            if (prev < 0x4e00 || prev >= 0xa000) {
                prev = (prev & ~0x7f) - SLOPE_REACH_NEG_1_;
            }
            else {
                // Unihan U+4e00..U+9fa5:
                // double-bytes down from the upper end
                prev = 0x9fff - SLOPE_REACH_POS_2_;
            }
       
            codepoint = iterator.nextCodePoint();
            result += lengthOfDiff(codepoint - prev);
            prev = codepoint;
        }
        return result;
    }
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    for (;;) {
      sepIndex = getSeparatorIndex(srcArr, sepIndex, srcArr.length);
      String label = new String(srcArr, oldSepIndex, sepIndex - oldSepIndex);
      //make sure this is not a root label separator.
      if (!(label.length() == 0 && sepIndex == srcArr.length)) {
        UCharacterIterator iter = UCharacterIterator.getInstance(label);
        result.append(convertToASCII(iter, options));
      }
      if (sepIndex == srcArr.length) {
        break;
      }
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      sepIndex = getSeparatorIndex(srcArr, sepIndex, srcArr.length);
      String label = new String(srcArr, oldSepIndex, sepIndex - oldSepIndex);
      if (label.length() == 0 && sepIndex != srcArr.length) {
        throw new StringPrepParseException("Found zero length lable after NamePrep.", StringPrepParseException.ZERO_LENGTH_LABEL);
      }
      UCharacterIterator iter = UCharacterIterator.getInstance(label);
      result.append(convertToUnicode(iter, options));
      if (sepIndex == srcArr.length) {
        break;
      }
      // Unlike the ToASCII operation we don't normalize the label separators
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     *            too small for the output.
     */
    public static int compress(String source, byte buffer[], int offset)
    {
        int prev = 0;
        UCharacterIterator iterator = UCharacterIterator.getInstance(source);
        int codepoint = iterator.nextCodePoint();
        while (codepoint != UCharacterIterator.DONE) {
            if (prev < 0x4e00 || prev >= 0xa000) {
                prev = (prev & ~0x7f) - SLOPE_REACH_NEG_1_;
            }
            else {
                // Unihan U+4e00..U+9fa5:
                // double-bytes down from the upper end
                prev = 0x9fff - SLOPE_REACH_POS_2_;
            }
       
            offset = writeDiff(codepoint - prev, buffer, offset);
            prev = codepoint;
            codepoint = iterator.nextCodePoint();
        }
        return offset;
    }
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     */
    public static int getCompressionLength(String source)
    {
        int prev = 0;
        int result = 0;
        UCharacterIterator iterator =  UCharacterIterator.getInstance(source);
        int codepoint = iterator.nextCodePoint();
        while (codepoint != UCharacterIterator.DONE) {
            if (prev < 0x4e00 || prev >= 0xa000) {
                prev = (prev & ~0x7f) - SLOPE_REACH_NEG_1_;
            }
            else {
                // Unihan U+4e00..U+9fa5:
                // double-bytes down from the upper end
                prev = 0x9fff - SLOPE_REACH_POS_2_;
            }
       
            codepoint = iterator.nextCodePoint();
            result += lengthOfDiff(codepoint - prev);
            prev = codepoint;
        }
        return result;
    }
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Related Classes of com.ibm.icu.text.UCharacterIterator

  • com.ibm.icu.dev.test.iterator.TestUCharacterIterator
  • com.ibm.icu.dev.test.normalizer.BasicTest
  • com.ibm.icu.dev.test.stringprep.IDNAReference
  • com.ibm.icu.dev.test.stringprep.NamePrepTransform
  • com.ibm.icu.dev.test.stringprep.NFS4StringPrep
  • com.ibm.icu.dev.test.stringprep.PunycodeReference
  • com.ibm.icu.dev.test.stringprep.TestIDNA
  • com.ibm.icu.dev.test.stringprep.TestIDNARef
  • com.ibm.icu.impl.BOCU
  • com.ibm.icu.impl.CharacterIteratorWrapper
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