defining a simple mode + hook for catching user abort signals

["Mack Stevenson" <mackstevenson@xxxxxxxxxxx>]

Hello

I am trying to define a very simple mode for editing slightly structured 
text. All it does is define a few functions which I would like to bind to 
certain keys; other than that I would like jed to behave as it does in text 
mode (e.g., wrapping lines). How can I do this simple modification?

By looking at the documentation at the mode repository I came up with the 
following. I have the functions in a .sl file in my jed dir together with 
the following function

define alttext_mode()
{
  run_mode_hooks("alttext_mode_hook");
  local_setkey(fun1, "^I");
  % other keybindings
}

Then I appended

() = evalfile("alttext");

to my jed.rc. This works - meaning that I get access to those functions by 
pressing the keybindings I defined - but I lose the text mode behavior; how 
can I simply define a couple of functions+keybindings "on top" of the 
regular text mode and define that as a new mode?

I would also like to know how I can catch a user abort signal (Ctrl-G) when 
one of the functions I defined is running. Eg, when a certain function is 
called I display information to the user in a temporary buffer and wait for 
input through the minibuffer. If the user presses Ctrl-G instead of entering 
something, I would like that other buffer to disappear (just as pressing 
"Ctrl+X B", followed by tab and then Ctrl-G works: the file list disappears 
when the latter is pressed). How can I achieve this?

Thanks in advance for any help,

Mack

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