Bug 176786 Issue when use ${env.working.folder} as context path.[0601]
Description: Issue when use ${env.working.folder} as context path Build number:2.2.0.v20070308 Steps to reproduce: 1. Add environment variable as below: env.working.folder(D:\temp\working_folder) env.document.folder (D:\temp\document_folder) env.image.folder(D:\temp\image_folder) 2. Deploy WebViewerExample folder in Tomcat5.5.7 2. Set context parameter as attached with form like ${env.working.folder}. 3. Start Server Expected result: Content inside WebViewerExample folder is untouched. Actual result: After server is started, refresh and check the WebViewerExample folder. Only webcontent and WEB-INF folders are left, other folders and two sample reports disappear. Error log:N/A
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
}
		return baseURL;
	}
	/**
	 * Trim the end separator
	 * 
	 * @param path
	 * @return
	 */
	protected static String trimSep( String path )
	{
		path = DataUtil.trimString( path );
		if ( path.endsWith( File.separator ) )
		{
			path = path.substring( 0, path.length( ) - 1 );
		}
		return path;
	}
	/**
	 * convert path from System Properties Definition. For example:
	 * ${java.io.tmpdir}
	 * 
	 * @param path
	 * @return
	 */
	protected static String convertSystemPath( String path )
	{
		
		Pattern p = Pattern.compile( "\\$\\s*\\{([^\\}]*)\\}\\s*(.*)", 
				Pattern.CASE_INSENSITIVE );