Trailing-Edge - PDP-10 Archives - steco_19840320_1er_E35 - 10,5676/teco/source/readme.txt
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The following new items have been added in this version of TECO:

1) The FI command is now implemented.  The format of the command is:


	q-reg contains the prompt, previous input, and will have the new
		input appended to it.  The prompt is the section between
		0 and ".", previous input between "." and "Z".  The previous
		input may be edited during the FI command, but not the prompt.
		LINE will input up to a standard TOPS-10 EOL character.
		COMMAND-TEXT will input up to two consectutive escapes (like
		a normal TECO command).
		INPUT-FILE and OUTPUT-FILE are currently the same as LINE,
		but may be made to do some parsing of the name in the future.
		SINGLE-CHARACTER will input a single character.

	All of the keywords will handle at least the normal editing characters
	(control-H, delete, control-U, and control-W).  COMMAND-TEXT will
	also handle the control-G's as they are handled in normal command

	The command also returns the text of the type-in as a string argument,
	as well as storing the text in the Q-register.

2) There is a new special Q-register called 'COMMAND-PROMPT'.  The contents
   of this Q-register is used as the normal TECO prompt.  If it contains
   a numeric value, the value is treated as a single ASCII character.
   If it contains text, the entire text is used as the prompt.  The text
   can be multiple lines long, or null, or any combination.  Note that
   in the multi line case, if the prompt is longer than the display
   region for the command buffer, only the last n lines will be displayed
   (n=length of display region).

3) There is a new Q-register called 'EXIT-COMMAND'.  This Q-register will
   be executed when an EX or ^C command is given.  This can contain any
   set of TECO commands, allowing the user to reset terminal parameters,

4) There is a new Q-register called 'CONTROL-C-INTERCEPT-COMMAND'.  TECO
   now has a control-C intercept enabled at all times (used to only be
   for certain terminals).  If this Q-register contains text when a ^C
   is typed, the Q-register is executed instead of exiting to monitor.
   The Q-register can contain a ^C command to cause TECO to exit, or
   may just continue on as if a control-C was not typed.  The commands used
   inside this Q-register should be restricted to very simple commands.
   In particular, no string arguments, long Q-register names, searches,
   or inserts should be done.  This is because TECO's memory management
   is not interlocked, and it is quite possible to blow it out of the water
   if the ^C is typed in just the right place and the intercept macro then
   does something that needs to run through the memory management.  I may
   fix this at some point, but haven't had the ambition to go through all
   of TECO putting in the proper interlocks.
   Note that the 'EXIT-COMMAND' will not be executed on a ^C command done

5) Since it is now possible to write a TECO.INI that can reset the terminal
   however one desires, TECO will no longer set smooth scroll mode on VT-100's.
   That can be done by putting the proper sequences into the two new
   Q-registers.  TECO will still put the terminal into jump scroll when
   started, and on continues, so the TECO.INI does not have to take care of

6) Internal change - As part of the support for the FI command, there is
   now a new module called TECCIN.  It contains a number of the routines
   that used to be in TECPRS.

7) The last saveset on this tape contains the current version of the TECO
   manual we are working on.  Comments will be appreciated.