040000 tree ae16504e853ea02cbd89aef780c0cf7512f485e3	ietfyang
040000 tree 390b98a3863ef751e19fd5a23c0447c7a97c833b	parser
040000 tree 68a6981ae318f30b199223b69dd181463424d803	plugin
040000 tree 546bd900ddcaed494286804b954f42c8c6bbcdce	translator
040000 tree 4bed548faa2049ba455cb3eb974f8ddc792c73f9	utils