040000 tree 696813bf2dc497a39f5a5d48ff6192fb29c12cd1	compare
040000 tree 1a405092bfa7937438d757a609dca6ea4605f90c	contains
040000 tree 2efe72c579ecc439f730ea987000d9f6fd8461f1	data
040000 tree cabcdfeb2998d622dddbca6031d75a25a755448e	ends_with
040000 tree a52edb78dee7e69010f6675545b445093d240a75	find
040000 tree 3761d5bf0797ae2fa09debb83fe32682b88fdda1	rfind
040000 tree 944a9a50ed43459a7beea43981e53c380d6414f5	starts_with
040000 tree d4d635d7d26ede80789a824c96526f8e7603de3f	substr