Examples of ILineTracker

org.eclipse.jface.text.ILineTracker
A line tracker maps character positions to line numbers and vice versa. Initially the line tracker is informed about its underlying text in order to initialize the mapping information. After that, the line tracker is informed about all changes of the underlying text allowing for incremental updates of the mapping information. It is the client's responsibility to actively inform the line tacker about text changes. For example, when using a line tracker in combination with a document the document controls the line tracker.
In order to provide backward compatibility for clients of ILineTracker, extension interfaces are used to provide a means of evolution. The following extension interfaces exist:
- {@link org.eclipse.jface.text.ILineTrackerExtension} since version 3.1 introducing the conceptof rewrite sessions.
Clients may implement this interface or use the standard implementation
{@link org.eclipse.jface.text.DefaultLineTracker}or {@link org.eclipse.jface.text.ConfigurableLineTracker}.

Examples of org.eclipse.jface.text.ILineTracker

    if (tabWidth < 0 || indentWidth < 0 || code == null || indentUnitsToRemove < 0 || newIndentString == null || lineDelim == null) {
      throw new IllegalArgumentException();
    }


    try {
      ILineTracker tracker= new DefaultLineTracker();
      tracker.set(code);
      int nLines= tracker.getNumberOfLines();
      if (nLines == 1) {
        return code;
      }


      StringBuffer buf= new StringBuffer();


      for (int i= 0; i < nLines; i++) {
        IRegion region= tracker.getLineInformation(i);
        int start= region.getOffset();
        int end= start + region.getLength();
        String line= code.substring(start, end);


        if (i == 0) {  // no indent for first line (contained in the formatted string)

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Examples of org.eclipse.jface.text.ILineTracker

      throw new IllegalArgumentException();
    }


    ArrayList result= new ArrayList();
    try {
      ILineTracker tracker= new DefaultLineTracker();
      tracker.set(source);
      int nLines= tracker.getNumberOfLines();
      if (nLines == 1)
        return (ReplaceEdit[])result.toArray(new ReplaceEdit[result.size()]);
      for (int i= 1; i < nLines; i++) {
        IRegion region= tracker.getLineInformation(i);
        int offset= region.getOffset();
        String line= source.substring(offset, offset + region.getLength());
        int length= indexOfIndent(line, indentUnitsToRemove, tabWidth, indentWidth);
        if (length >= 0) {
          result.add(new ReplaceEdit(offset, length, newIndentString));

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Examples of org.eclipse.jface.text.ILineTracker

    fMasterDocument.addPositionUpdater(fFragmentsUpdater);


    fMapping= new ProjectionMapping(masterDocument, fFragmentsCategory, this, fSegmentsCategory);


    ITextStore s= new ProjectionTextStore(masterDocument, fMapping);
    ILineTracker tracker= new DefaultLineTracker();


    setTextStore(s);
    setLineTracker(tracker);


    completeInitialization();


    initializeProjection();
    tracker.set(s.get(0, s.getLength()));
  }

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Examples of org.eclipse.jface.text.ILineTracker

    if (tabWidth < 0 || indentWidth < 0 || code == null || indentUnitsToRemove < 0 || newIndentString == null || lineDelim == null) {
      throw new IllegalArgumentException();
    }


    try {
      ILineTracker tracker= new DefaultLineTracker();
      tracker.set(code);
      int nLines= tracker.getNumberOfLines();
      if (nLines == 1) {
        return code;
      }


      StringBuffer buf= new StringBuffer();


      for (int i= 0; i < nLines; i++) {
        IRegion region= tracker.getLineInformation(i);
        int start= region.getOffset();
        int end= start + region.getLength();
        String line= code.substring(start, end);


        if (i == 0) {  // no indent for first line (contained in the formatted string)

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Examples of org.eclipse.jface.text.ILineTracker

      throw new IllegalArgumentException();
    }


    ArrayList result= new ArrayList();
    try {
      ILineTracker tracker= new DefaultLineTracker();
      tracker.set(source);
      int nLines= tracker.getNumberOfLines();
      if (nLines == 1)
        return (ReplaceEdit[])result.toArray(new ReplaceEdit[result.size()]);
      for (int i= 1; i < nLines; i++) {
        IRegion region= tracker.getLineInformation(i);
        int offset= region.getOffset();
        String line= source.substring(offset, offset + region.getLength());
        int length= indexOfIndent(line, indentUnitsToRemove, tabWidth, indentWidth);
        if (length >= 0) {
          result.add(new ReplaceEdit(offset, length, newIndentString));

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Examples of org.eclipse.jface.text.ILineTracker

      }
    }
  
    // 4 - add the content prefix (@see JavaDocRegion#postprocessCodeSnippet)
    this.codeSnippetBuffer.setLength(0);
    ILineTracker tracker = new DefaultLineTracker();
    this.column = 1;
    printIndentationIfNecessary(this.codeSnippetBuffer); // append indentation
    this.codeSnippetBuffer.append(BLOCK_LINE_PREFIX);
    String linePrefix = this.codeSnippetBuffer.toString();
    this.codeSnippetBuffer.setLength(0);
    String replacement = formattedSnippet;
    tracker.set(formattedSnippet);
    int numberOfLines = tracker.getNumberOfLines();
    if (numberOfLines > 1) {
      int lastLineOffset = -1;
      for (int i=0; i<numberOfLines-1; i++) {
        if (i>0) this.codeSnippetBuffer.append(linePrefix);
        try {
          lastLineOffset = tracker.getLineOffset(i+1);
          this.codeSnippetBuffer.append(formattedSnippet.substring(tracker.getLineOffset(i), lastLineOffset));
        } catch (BadLocationException e) {
          // should not happen
          CommentFormatterUtil.log(e);
          return;
        }

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Examples of org.eclipse.jface.text.ILineTracker

    return buffer;
  }


  private static String changeLineDelimiter(String code, String lineDelim) {
    try {
      ILineTracker tracker = new DefaultLineTracker();
      tracker.set(code);
      int nLines = tracker.getNumberOfLines();
      if (nLines == 1) {
        return code;
      }


      StringBuffer buf = new StringBuffer();
      for (int i = 0; i < nLines; i++) {
        if (i != 0) {
          buf.append(lineDelim);
        }
        IRegion region = tracker.getLineInformation(i);
        String line = code.substring(region.getOffset(), region
            .getOffset()
            + region.getLength());
        buf.append(line);
      }

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Examples of org.eclipse.jface.text.ILineTracker

   *   null</code>
   *         if the input string can't be converted in an array of lines.
   */
  public static String[] convertIntoLines(String input) {
    try {
      ILineTracker tracker = new DefaultLineTracker();
      tracker.set(input);
      int size = tracker.getNumberOfLines();
      String result[] = new String[size];
      for (int i = 0; i < size; i++) {
        IRegion region = tracker.getLineInformation(i);
        int offset = region.getOffset();
        result[i] = input
            .substring(offset, offset + region.getLength());
      }
      return result;

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Examples of org.eclipse.jface.text.ILineTracker

  // }


  public static String trimIndentation(String source, int tabWidth,
      int indentWidth, boolean considerFirstLine) {
    try {
      ILineTracker tracker = new DefaultLineTracker();
      tracker.set(source);
      int size = tracker.getNumberOfLines();
      if (size == 1)
        return source;
      String lines[] = new String[size];
      for (int i = 0; i < size; i++) {
        IRegion region = tracker.getLineInformation(i);
        int offset = region.getOffset();
        lines[i] = source
            .substring(offset, offset + region.getLength());
      }
      Strings.trimIndentation(lines, tabWidth, indentWidth,
          considerFirstLine);
      StringBuffer result = new StringBuffer();
      int last = size - 1;
      for (int i = 0; i < size; i++) {
        result.append(lines[i]);
        if (i < last)
          result.append(tracker.getLineDelimiter(i));
      }
      return result.toString();
    } catch (BadLocationException e) {
      Assert.isTrue(false, "Can not happend"); //$NON-NLS-1$
      return null;

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Examples of org.eclipse.jface.text.ILineTracker

        || lineDelim == null) {
      throw new IllegalArgumentException();
    }


    try {
      ILineTracker tracker = new DefaultLineTracker();
      tracker.set(code);
      int nLines = tracker.getNumberOfLines();
      if (nLines == 1) {
        return code;
      }


      StringBuffer buf = new StringBuffer();


      for (int i = 0; i < nLines; i++) {
        IRegion region = tracker.getLineInformation(i);
        int start = region.getOffset();
        int end = start + region.getLength();
        String line = code.substring(start, end);


        if (i == 0) { // no indent for first line (contained in the

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