2005-12-15  Moreno Baricevic  <baro@democritos.it>

	* src/ls.c: added new feature (-P TYPES, --select-file-type=TYPES)
	(decode_switches): added short option 'P' and its handling.
	(strip_dirs): remove directories from files[].
	(print_dir): added check on selected filetypes (based on d_type);
	(print_dir): ignore directories if not selected.
	(valid_filetypes): sanity check on -P argument.
	(is_selected_filetype): check if file matches selected filetypes.
	(gobble_file): added selected_filetype handling.
	(usage): documented -P, --select-file-type=TYPES.
	* doc/coreutils.texi: documented -P, --select-file-type=TYPES.