Nightmare mudlib lfun: catch_tell()

void catch_tell(string str);

Any string told to a living object gets passed through first to any
catch_tell() function in the living object.  If no such function exists,
then nothing happens.  If such a function exists, then whatever is defined
in catch_tell() by the creator happens.

*****

example:
This code might appear in any monster:

void catch_tell(string str) {
    string who;

    if(!sscanf(str, "%s smiles %*s", who) return;
    if(!present(lower_case(who))) return;
    tell_room(environment(this_object()), "Monster smiles at "+who+".\n",
	({ this_object(), present(lower_case(who)) }) );
    tell_object(present(lower_case(who)), "Monster smiles at you.\n");
}