commentscanner.java

<Apress.The.Definitive.Guide.to.SWT.and.JFace.eBook-LiB>书籍配套源代码

package examples.ch18.perledit.source;

import org.eclipse.jface.text.TextAttribute;
import org.eclipse.jface.text.rules.*;

import examples.ch18.perledit.PerlEditor;

/**
 * This class scans comment partitions
 */
public class CommentScanner extends RuleBasedScanner {
  /**
   * CommentScanner constructor
   */
  public CommentScanner() {
    // Get the color manager
    ColorManager colorManager = PerlEditor.getApp().getColorManager();

    // Create the tokens
    IToken other = new Token(new TextAttribute(colorManager
        .getColor(ColorManager.COMMENT)));

    // Use "other" for default
    setDefaultReturnToken(other);

    // This scanner has an easy job--we need no rules. Anything in a comment
    // partition should be scanned as a comment
  }
}