* @return a String line or null
*/
private String getLine(String filename, int lineno) {
RelativeFile file = new RelativeFile(filename);
try {
if (!file.isFile() || !file.canRead()) {
// XXX: We should run through sys.path until the filename is found
return null;
}
} catch (SecurityException e) {
return null; // If we don't have read access to the file, return null