Mtr tr.c /^main(argc, argv)$/ backslash str.c /^backslash(s)$/ bracket str.c /^bracket(s)$/ c_class str.c /^c_class(a, b)$/ err tr.c /^err(fmt, va_alist)$/ genclass str.c /^genclass(s)$/ genequiv str.c /^genequiv(s)$/ genrange str.c /^genrange(s)$/ genseq str.c /^genseq(s)$/ next str.c /^next(s)$/ setup tr.c /^setup(string, arg, str, cflag)$/ usage tr.c /^usage()$/