Examples of java.text.BreakIterator$BreakIteratorCache

java.text.BreakIterator

each word in order BreakIterator boundary = BreakIterator.getWordInstance(); boundary.setText(stringToExamine); printEachForward(boundary, stringToExamine); //print each sentence in reverse order boundary = BreakIterator.getSentenceInstance(Locale.US); boundary.setText(stringToExamine); printEachBackward(boundary, stringToExamine); printFirst(boundary, stringToExamine); printLast(boundary, stringToExamine); } } Print each element in order:

 public static void printEachForward(BreakIterator boundary, String source) { int start = boundary.first(); for (int end = boundary.next(); end != BreakIterator.DONE; start = end, end = boundary.next()) { System.out.println(source.substring(start,end)); } }

Print each element in reverse order:

 public static void printEachBackward(BreakIterator boundary, String source) { int end = boundary.last(); for (int start = boundary.previous(); start != BreakIterator.DONE; end = start, start = boundary.previous()) { System.out.println(source.substring(start,end)); } }

Print first element:

 public static void printFirst(BreakIterator boundary, String source) { int start = boundary.first(); int end = boundary.next(); System.out.println(source.substring(start,end)); }

Print last element:

 public static void printLast(BreakIterator boundary, String source) { int end = boundary.last(); int start = boundary.previous(); System.out.println(source.substring(start,end)); }

Print the element at a specified position:

 public static void printAt(BreakIterator boundary, int pos, String source) { int end = boundary.following(pos); int start = boundary.previous(); System.out.println(source.substring(start,end)); }

Find the next word:

 public static int nextWordStartAfter(int pos, String text) { BreakIterator wb = BreakIterator.getWordInstance(); wb.setText(text); int last = wb.following(pos); int current = wb.next(); while (current != BreakIterator.DONE) { for (int p = last; p < current; p++) { if (Character.isLetter(text.codePointAt(p))) return last; } last = current; current = wb.next(); } return BreakIterator.DONE; } 
(The iterator returned by BreakIterator.getWordInstance() is unique in that the break positions it returns don't represent both the start and end of the thing being iterated over. That is, a sentence-break iterator returns breaks that each represent the end of one sentence and the beginning of the next. With the word-break iterator, the characters between two boundaries might be a word, or they might be the punctuation or whitespace between two words. The above code uses a simple heuristic to determine which boundary is the beginning of a word: If the characters between this boundary and the next boundary include at least one letter (this can be an alphabetical letter, a CJK ideograph, a Hangul syllable, a Kana character, etc.), then the text between this boundary and the next is a word; otherwise, it's the material between words.)

@see CharacterIterator

    }
    public static final int getWordEnd(final TextKit tk, final int pos)
        throws BadLocationException {


        Document doc = tk.getDocument();
        BreakIterator bi = BreakIterator.getWordInstance();
        int length = doc.getLength();
        if (pos < 0 || pos > length) {
            throwException("No word at " + pos, pos);
        }
        String content = doc.getText(0, doc.getLength());
        bi.setText(content);
        return (pos < bi.last()) ? bi.following(pos) : pos;
   }

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   }


   public static final int getWordStart(final TextKit tk, final int pos)
        throws BadLocationException {
        Document doc = tk.getDocument();
        BreakIterator bi = BreakIterator.getWordInstance();
        int length = doc.getLength();
        if (pos < 0 || pos > length) {
             throwException("No word at " + pos, pos);
        }
        String content = null;


        content = doc.getText(0, doc.getLength());
        bi.setText(content);
        int iteratorWordStart = pos;
        if (pos < length - 1) {
            iteratorWordStart = bi.preceding(pos + 1);
        } else {
             bi.last();
             iteratorWordStart = bi.previous();
        }
        return iteratorWordStart;
   }

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                lineSeparator = "<br>";
            }


            StringBuffer sb = new StringBuffer(stringLength +
                    ((stringLength / wrapLength) * 2 * lineSeparator.length()));
            BreakIterator lineIterator = BreakIterator.getLineInstance();
            lineIterator.setText(string);
            int start = lineIterator.first();
            int lineStart = start;


            for (int end = lineIterator.next(); end != BreakIterator.DONE;
                        start = end, end = lineIterator.next())
            {
                if (end - lineStart < wrapLength) {
                    sb.append(string.substring(start, end));
                }
                else {

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              else
              {
                // Get a BreakIterator.  Note that this code doesn't
                // really work for multi-lingual pages (e.g., an English
                // page that contains some Japanese text).
                BreakIterator breaks = BreakIterator.getLineInstance(
                  context.getViewRoot().getLocale());
                breaks.setText(textString);


                _writeTextWithBreaks(context, breaks, textString, columns);
              }
            } // endif wrapping on
            else

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        text.setView(lv);


        Container container = fv.getContainer();
        FontRenderContext frc = sun.swing.SwingUtilities2.
                                    getFontRenderContext(container);
        BreakIterator iter;
        Container c = fv.getContainer();
        if (c != null) {
            iter = BreakIterator.getLineInstance(c.getLocale());
        } else {
            iter = BreakIterator.getLineInstance();

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            int pstart = (parent == null ? start : parent.getStartOffset());
            int pend = (parent == null ? end : parent.getEndOffset());


            Segment s = getText(pstart, pend);
            s.first();
            BreakIterator breaker = getBreaker();
            breaker.setText(s);


            // Backward search should start from end+1 unless there's NO end+1
            int startFrom = end + (pend > end ? 1 : 0);
            for (;;) {
                startFrom = breaker.preceding(s.offset + (startFrom - pstart))
                          + (pstart - s.offset);
                if (startFrom > start) {
                    // The break spot is within the view
                    bs[ix++] = startFrom;
                } else {

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                IndexedSegment seg = getParagraphElementText(index);
                if (seg == null) {
                    return null;
                }
                BreakIterator iterator;
                switch (part) {
                case AccessibleText.WORD:
                    iterator = BreakIterator.getWordInstance(getLocale());
                    break;
                case AccessibleText.SENTENCE:
                    iterator = BreakIterator.getSentenceInstance(getLocale());
                    break;
                default:
                    return null;
                }
                seg.first();
                iterator.setText(seg);
                int end = iterator.following(index - seg.modelOffset + seg.offset);
                if (end == BreakIterator.DONE) {
                    return null;
                }
                if (end > seg.offset + seg.count) {
                    return null;
                }
                int begin = iterator.previous();
                if (begin == BreakIterator.DONE ||
                    begin >= seg.offset + seg.count) {
                    return null;
                }
                seg.modelOffset = seg.modelOffset + begin - seg.offset;

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            switch (part) {
            case AccessibleText.CHARACTER:
                return TextComponent.this.getText().substring(index, index+1);
            case AccessibleText.WORD:  {
                    String s = TextComponent.this.getText();
                    BreakIterator words = BreakIterator.getWordInstance();
                    words.setText(s);
                    int end = words.following(index);
                    return s.substring(words.previous(), end);
                }
            case AccessibleText.SENTENCE:  {
                    String s = TextComponent.this.getText();
                    BreakIterator sentence = BreakIterator.getSentenceInstance();
                    sentence.setText(s);
                    int end = sentence.following(index);
                    return s.substring(sentence.previous(), end);
                }
            default:
                return null;
            }
        }

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                   return null;
                }
                return TextComponent.this.getText().substring(index+1, index+2);
            case AccessibleText.WORD:  {
                    String s = TextComponent.this.getText();
                    BreakIterator words = BreakIterator.getWordInstance();
                    words.setText(s);
                    int start = findWordLimit(index, words, NEXT, s);
                    if (start == BreakIterator.DONE || start >= s.length()) {
                        return null;
                    }
                    int end = words.following(start);
                    if (end == BreakIterator.DONE || end >= s.length()) {
                        return null;
                    }
                    return s.substring(start, end);
                }
            case AccessibleText.SENTENCE:  {
                    String s = TextComponent.this.getText();
                    BreakIterator sentence = BreakIterator.getSentenceInstance();
                    sentence.setText(s);
                    int start = sentence.following(index);
                    if (start == BreakIterator.DONE || start >= s.length()) {
                        return null;
                    }
                    int end = sentence.following(start);
                    if (end == BreakIterator.DONE || end >= s.length()) {
                        return null;
                    }
                    return s.substring(start, end);
                }

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                    return null;
                }
                return TextComponent.this.getText().substring(index-1, index);
            case AccessibleText.WORD:  {
                    String s = TextComponent.this.getText();
                    BreakIterator words = BreakIterator.getWordInstance();
                    words.setText(s);
                    int end = findWordLimit(index, words, PREVIOUS, s);
                    if (end == BreakIterator.DONE) {
                        return null;
                    }
                    int start = words.preceding(end);
                    if (start == BreakIterator.DONE) {
                        return null;
                    }
                    return s.substring(start, end);
                }
            case AccessibleText.SENTENCE:  {
                    String s = TextComponent.this.getText();
                    BreakIterator sentence = BreakIterator.getSentenceInstance();
                    sentence.setText(s);
                    int end = sentence.following(index);
                    end = sentence.previous();
                    int start = sentence.previous();
                    if (start == BreakIterator.DONE) {
                        return null;
                    }
                    return s.substring(start, end);
                }

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