Bug 173582 Run servlet should not be affected by values in document.[0000]
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
return null;
		}
		StringBuffer sbHtmlEncoded = new StringBuffer( );
		final char chrarry[] = s.toCharArray( );
		for ( int i = 0; i < chrarry.length; i++ )
		{
			char c = chrarry[i];
			switch ( c )
			{
				case '\t' :
					sbHtmlEncoded.append( "&#09;" ); 
					break;
				case '\n' :
					sbHtmlEncoded.append( "<br>" ); 
					break;
				case '\r' :
					sbHtmlEncoded.append( "&#13;" ); 
					break;
				case ' ' :
					sbHtmlEncoded.append( "&#32;" ); 
					break;
				case '"' :
					sbHtmlEncoded.append( "&#34;" ); 
					break;
				case '\'' :
					sbHtmlEncoded.append( "&#39;" ); 
					break;
				case '<' :
					sbHtmlEncoded.append( "&#60;" ); 
					break;