protected RuleBasedScanner getImpexScanner(String partition) {
	
	RuleBasedScanner scanner = scanMap.get(partition); 
	if (scanner == null) {
		scanner = new ImpexRuleScanner(ColorProvider.getInstance());
		if (partition != null) {
			switch (partition) {
			case ImpexDocumentPartitioner.IMPEX_INSTRUCTION:
				scanner = new InstructionsRuleScanner(ColorProvider.getInstance());
				break;
			}
		}
		
	}
	return scanner;
}
 

private RuleBasedScanner getCommentScanner(){
   if (commentScanner == null) {
       commentScanner = new HCommentScanner();
       commentScanner.setDefaultReturnToken(new Token(new TextAttribute(ResourceUtils.getColor(Styles.COMMENT))));
   }
   return commentScanner;
}
 

private RuleBasedScanner getValueScanner(){
   if (valueScanner == null) {
       valueScanner = new HValueScanner();
       valueScanner.setDefaultReturnToken(new Token(new TextAttribute(ResourceUtils.getColor(Styles.STRING))));
   }
   return valueScanner;
}
 

private RuleBasedScanner getDefaultScanner(){
   if (defaultScanner == null) {
       defaultScanner = new HDefaultScanner();
       defaultScanner.setDefaultReturnToken(new Token(new TextAttribute(ResourceUtils.getColor(Styles.KEY))));
   }
   return defaultScanner;
}
 

private ITokenScanner getStartEndTokenScanner() {
	if (startEndTokenScanner == null) {
		RuleBasedScanner ts = new RuleBasedScanner();
		IToken seqToken = new Token(getStartEndTokenType());
		List<IRule> rules = new ArrayList<IRule>();
		for (String[] pair : getPartitionerSwitchStrategy().getSwitchTagPairs()) {
			rules.add(new SingleTagRule(pair[0], seqToken));
			rules.add(new SingleTagRule(pair[1], seqToken));
		}
		ts.setRules(rules.toArray(new IRule[rules.size()]));
		ts.setDefaultReturnToken(new Token("text")); //$NON-NLS-1$
		startEndTokenScanner = ts;
	}
	return startEndTokenScanner;
}
 

ITokenScanner getCommentScanner() {
    // lazy init
    if (this.commentScanner == null) {
        final Token comment = new Token(new TextAttribute(JFaceResources.getColorRegistry().get(COMMENT_COLOR)));
        // no rules needed, because this will apply to comment partition
        // only
        final RuleBasedScanner ruleBasedScanner = new RuleBasedScanner();
        // this will apply the syntax
        ruleBasedScanner.setDefaultReturnToken(comment);
        this.commentScanner = ruleBasedScanner;
    }
    return commentScanner;
}
 

/**
 * Gets default scanner
 * 
 * @return scanner
 */
protected RuleBasedScanner getDefaultScanner( )
{
	if ( scanner == null )
	{
		scanner = new JSScanner( );
		scanner.setDefaultReturnToken( new Token( UIUtil.getAttributeFor( ReportPlugin.EXPRESSION_CONTENT_COLOR_PREFERENCE ) ) );
	}
	return scanner;
}
 

/**
 * Returns the TypeScript source code scanner for this configuration.
 *
 * @return the TypeScript source code scanner
 */
@Override
protected RuleBasedScanner getCodeScanner() {
	return fCodeScanner;
}
 

/**
 * Returns the JSX source code scanner for this configuration.
 *
 * @return the JSX source code scanner
 */
protected RuleBasedScanner getJSXScanner() {
	return jsxScanner;
}
 

/**
 * Returns the Java source code scanner for this configuration.
 *
 * @return the Java source code scanner
 */
protected RuleBasedScanner getCodeScanner() {
	return fCodeScanner;
}
 

/**
 * Returns the Java multi-line comment scanner for this configuration.
 *
 * @return the Java multi-line comment scanner
 * @since 2.0
 */
protected RuleBasedScanner getMultilineCommentScanner() {
	return fMultilineCommentScanner;
}
 

/**
 * Returns the Java single-line comment scanner for this configuration.
 *
 * @return the Java single-line comment scanner
 * @since 2.0
 */
protected RuleBasedScanner getSinglelineCommentScanner() {
	return fSinglelineCommentScanner;
}
 

/**
 * Returns the Java string scanner for this configuration.
 *
 * @return the Java string scanner
 * @since 2.0
 */
protected RuleBasedScanner getStringScanner() {
	return fStringScanner;
}
 

/**
 * Returns the JavaDoc scanner for this configuration.
 *
 * @return the JavaDoc scanner
 */
protected RuleBasedScanner getJavaDocScanner() {
	return fJavaDocScanner;
}
 

/**
 * Returns a scanner which is configured to scan Java source code.
 *
 * @return a Java source code scanner
 * @deprecated As of 3.0, replaced by {@link JavaSourceViewerConfiguration#getCodeScanner()}
 */
public RuleBasedScanner getCodeScanner() {
	return fCodeScanner;
}
 

/**
 * Returns a scanner which is configured to scan Java multi-line comments.
 *
 * @return a Java multi-line comment scanner
 * @since 2.0
 * @deprecated As of 3.0, replaced by {@link JavaSourceViewerConfiguration#getMultilineCommentScanner()}
 */
public RuleBasedScanner getMultilineCommentScanner() {
	return fMultilineCommentScanner;
}
 

/**
 * Returns a scanner which is configured to scan Java single-line comments.
 *
 * @return a Java single-line comment scanner
 * @since 2.0
 * @deprecated As of 3.0, replaced by {@link JavaSourceViewerConfiguration#getSinglelineCommentScanner()}
 */
public RuleBasedScanner getSinglelineCommentScanner() {
	return fSinglelineCommentScanner;
}
 

/**
 * Returns a scanner which is configured to scan Java strings.
 *
 * @return a Java string scanner
 * @since 2.0
 * @deprecated As of 3.0, replaced by {@link JavaSourceViewerConfiguration#getStringScanner()}
 */
public RuleBasedScanner getStringScanner() {
	return fStringScanner;
}
 

/**
 * Returns a scanner which is configured to scan JavaDoc compliant comments.
 * <p>
 * Note that the start sequence "/**" and the corresponding end sequence
 * are part of the Javadoc comment.</p>
 *
 * @return a Javadoc scanner
 * @deprecated As of 3.0, replaced by {@link JavaSourceViewerConfiguration#getJavaDocScanner()}
 */
public RuleBasedScanner getJavaDocScanner() {
	return fJavaDocScanner;
}
 

/**
 * Returns the property key scanner for this configuration.
 *
 * @return the property key scanner
 */
protected RuleBasedScanner getPropertyKeyScanner() {
	return fPropertyKeyScanner;
}
 

/**
 * Returns the comment scanner for this configuration.
 *
 * @return the comment scanner
 */
protected RuleBasedScanner getCommentScanner() {
	return fCommentScanner;
}
 

/**
 * Returns the property value scanner for this configuration.
 *
 * @return the property value scanner
 */
protected RuleBasedScanner getPropertyValueScanner() {
	return fPropertyValueScanner;
}
 

/**
 * Returns the property key scanner for this configuration.
 *
 * @return the property key scanner
 */
protected RuleBasedScanner getPropertyKeyScanner() {
	return propertyKeyScanner;
}
 

/**
 * Returns the comment scanner for this configuration.
 *
 * @return the comment scanner
 */
protected RuleBasedScanner getCommentScanner() {
	return commentScanner;
}
 

/**
 * Returns the section scanner for this configuration.
 *
 * @return the section scanner
 */
protected RuleBasedScanner getSectionNameScanner() {
	return sectionScanner;
}
 

/**
 * Returns the property value scanner for this configuration.
 *
 * @return the property value scanner
 */
protected RuleBasedScanner getPropertyValueScanner() {
	return propertyValueScanner;
}