if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
for (vector<string>::const_iterator it = loaders.begin();
it != loaders.end(); ++it) {
if (find(loaders.begin(), loaders.end(), format) == loaders.end()) {
for (vector<string>::const_iterator it = loaders.begin();
it != loaders.end(); ++it) {