040000 tree e99d3ae863e4a49f59248e45d99b872a4a98c759	ietfyang
040000 tree 57c0bcb5f16022e53917dd06a3dab630829bdc48	parser
040000 tree d82bb14c805a0bb39c62a05fd6a0ac27632f70fd	plugin
040000 tree 1d96a67bf77945814f9e700b31fc6227e4d33491	translator
040000 tree 6eed5c094a69ef8d3ffa6fe569c459a0bbd5ad99	utils