ObjIRC  Check-in [aa89dd371b]

	components = [line componentsSeparatedByString: @" "];

	/* PING */
	if ([components count] == 2 &&
	    [[components firstObject] isEqual: @"PING"]) {
		OFMutableString *s = [[line mutableCopy] autorelease];
		[s replaceOccurrencesOfString: @"PING"
				   withString: @"PONG"];
		[s replaceCharactersInRange: of_range(0, 4)
				 withString: @"PONG"];
		[self sendLine: s];

		return;
	}

	action = [[components objectAtIndex: 1] uppercaseString];