040000 tree d9aee5526d5bfbeb6064d44ce7f86738b022f47e	compare
040000 tree 4964b91b02ee0c4d544d948e34f9a174eaf758b6	copy
040000 tree c55a8ed89d70cdef122aaec08a59ed3b5107c771	data
040000 tree c4d186a8ecdcb2e63fecb09527ec413ce4e2b9e4	find
040000 tree 81b2d9a2f82338b5a6093c7f8eef992872e65e7d	rfind
040000 tree 9057432b5e9c3ac1fb6e081110ae78cf245f5fa8	string_conversion
040000 tree a4c44bb3417b469a29cbb6a5222ae67bb251d9c6	substr