The beginnings of a telnet terminal, for telnetting to other hosts.


NOTE - it should separate out the VT100 code to a separate class some time....

	access
	displayBuffer displayBufferSelection isConnected port: remoteHost:

	menu
	menu:shifted: perform:orSendTo: setHostName setPort

	private
	do: dont: initialize processDo: processDont: processInput: processWill: processWont: sendChar: will: wont:

	screen management
	addBoringStringInNormalMode: displayChar: displayCharGatheringParameters: displayCharSawEscape: displayString: possiblyWrapCursor scrollScreenBack:

	sending data
	processTyping: sendLine:

	instance creation
	new

	user interface
	open

	IO	top
	connect connect to the name host
	disconnect
	processIO should be called periodically--this actually sends and recieves some bytes over the network
	release Remove references to objects that may refer to the receiver. This message should be overridden by subclasses with any cycles, in which case the subclass should also include the expression super release.
	step Default for moephic models is no-op
	wantsSteps Overridden by morphic classes whose instances want to be stepped, or by model classes who want their morphic views to be stepped.

	access	top
	displayBuffer the 'screen' of the terminal
	displayBufferSelection where the selection should be in the display buffer. It should be where the cursor is
	isConnected answer whether we are connected to a remote host
	port: set which port to connect to
	remoteHost: set which host to connect to

	menu	top
	menu:shifted:
	perform:orSendTo: Selector was just chosen from a menu by a user. If can respond, then perform it on myself. If not, send it to otherTarget, presumably the editPane from which the menu was invoked.
	setHostName
	setPort

	private	top
	do: request that the remote side does optionNo
	dont: demand that the remote side doesn't do optionNo
	initialize
	processDo: we don't do anything
	processDont: okay, fine by us, we won't do it...
	processInput: process input from the network
	processWill:
	processWont:
	sendChar: queue a character for sending over the network
	will: request that we do optionNo
	wont: demand that we won't do optionNo

	screen management	top
	addBoringStringInNormalMode: add a string with no special characters, and assuming we are already in #normal mode
	displayChar:
	displayCharGatheringParameters: display a character from the mode #gatheringParameters
	displayCharSawEscape: display a character from the mode #sawEscape
	displayString: add aString to the display
	possiblyWrapCursor if the cursor has gone past the right margin, then wrap
	scrollScreenBack: scrolls the screen up by the number of lines. The cursor isn't moved

	sending data	top
	processTyping: process aString as if it were typed
	sendLine: send a line, along with a newline

	initialization	top
	initialize TelnetMachine initialize

	instance creation	top
	new Answer a new instance of the receiver (which is a class) with no indexable variables. Fail if the class is indexable.

	user interface	top
	open TelnetMachine open