rb_str_casemap 5897 string.c str_shared_replace(str, rb_str_casemap(str, &flags, enc)); rb_str_casemap 5963 string.c str_shared_replace(str, rb_str_casemap(str, &flags, enc)); rb_str_casemap 6059 string.c str_shared_replace(str, rb_str_casemap(str, &flags, enc)); rb_str_casemap 6114 string.c str_shared_replace(str, rb_str_casemap(str, &flags, enc));