895     char *out = b->ptr;  in buffer_path_simplify()  local
912     char *walk = out;  in buffer_path_simplify()
926         out = walk-1;  in buffer_path_simplify()
930             *out = *++walk;  in buffer_path_simplify()
932             *out = *(walk += 2);  in buffer_path_simplify()
935             out = walk;  in buffer_path_simplify()
947                 ++out;  in buffer_path_simplify()
955                 while (out > b->ptr && *--out != '/') ;  in buffer_path_simplify()
956                 *out = '/'; /*(in case path had not started with '/')*/  in buffer_path_simplify()
958                     ++out;  in buffer_path_simplify()
967                     ++out;  in buffer_path_simplify()
974                 *++out = '.';  in buffer_path_simplify()
979         while ((*++out = *walk++) != '/') ;  in buffer_path_simplify()
981     *out = *end = '\0'; /* overwrite extra '/' added to end of path */  in buffer_path_simplify()
982     b->used = (out - b->ptr) + 1;  in buffer_path_simplify()