NAME
	previous_object - give object that called current object

SYNOPSIS
	object previous_object()

DESCRIPTION
	This function returns the previous object that called a function
	in this object from the outside, ie with `call_other()'. 

	This include `call_other(this_object(), ...)' constructions. In 
	this case, the returned value will be `this_object()'.

CAVEAT
	If the function was called internally, the result is undefined.

Help topics available:

_destruct	_isclone	_lock	_next_clone	_query_action
add_action	all_inventory	call_other	call_out	call_out_info
clone_object	command	creator	deep_inventory	destruct
disable_commands	enable_commands	environment	exec	file_name
find_call_out	find_living	find_object	first_inventory	function_exists
inherit	inherit_list	input_to	interactive	living
move_object	next_inventory	present	previous_object	query_verb
remove_call_out	restore_object	save_object	set_heart_beat	set_light
set_living_name	shadow	tell_object	tell_room	this_object
this_player	transfer