code: /*--------------------------------------------------------------*
    Copyright (C) 2006-2015 OpenSim Ltd.
  
    This file is distributed WITHOUT ANY WARRANTY. See the file
    'License' for details on this and other legal matters.
  *--------------------------------------------------------------*/
  
  package org.omnetpp.ned.editor.text.highlight;
  
  
  import org.eclipse.jface.text.IDocument;
  import org.eclipse.jface.text.rules.EndOfLineRule;
  import org.eclipse.jface.text.rules.IPredicateRule;
  import org.eclipse.jface.text.rules.RuleBasedPartitionScanner;
  import org.eclipse.jface.text.rules.SingleLineRule;
  import org.eclipse.jface.text.rules.Token;
  import org.omnetpp.common.editor.text.SyntaxHighlightHelper;
  
  /**
   * This scanner recognizes the different partitions needed for different syntax highlighting areas.
   *
   * @author rhornig
   */
  public class NedSyntaxHighlightPartitionScanner extends RuleBasedPartitionScanner {
  
      public final static String PARTITIONING_ID = "__ned_syntaxhighlight_partitioning";
  
      public final static String NED_PRIVATE_DOC = "__ned_privatedoc";
      public final static String NED_DOC = "__ned_doc";
      public final static String[] SUPPORTED_PARTITION_TYPES
          = new String[] { IDocument.DEFAULT_CONTENT_TYPE, NED_PRIVATE_DOC, NED_DOC };
  
      /**
       * Creates the partitioner and sets up the appropriate rules.
       */
      public NedSyntaxHighlightPartitionScanner() {
          super();
  
          // Add rule for single-line comments. To prevent "//" inside string constants
          // from triggering the rule (and marking the rest of the string as comment), we
          // add a rule for string constants that fires BEFORE the comment rule.
          IPredicateRule stringConstantRule = new SingleLineRule("\"", "\"", SyntaxHighlightHelper.codeStringToken, '\\');
          IPredicateRule privateCommentRule = new EndOfLineRule("//#", new Token(NED_PRIVATE_DOC));
          IPredicateRule commentRule = new EndOfLineRule("//", new Token(NED_DOC));
  
          setPredicateRules(new IPredicateRule[] { stringConstantRule, privateCommentRule, commentRule });
      }
  }
  