(lispref.info)Command Loop

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Command Loop

   When you run Emacs, it enters the "editor command loop" almost
immediately.  This loop reads key sequences, executes their definitions,
and displays the results.  In this chapter, we describe how these things
are done, and the subroutines that allow Lisp programs to do them.

* Command Overview
How the command loop reads commands.
* Defining Commands
Specifying how a function should read arguments.
* Interactive Call
Calling a command, so that it will read arguments.
* Command Loop Info
Variables set by the command loop for you to examine.
* Input Events
What input looks like when you read it.
* Reading Input
How to read input events from the keyboard or mouse.
* Waiting
Waiting for user input or elapsed time.
* Quitting
How `C-g' works. How to catch or defer quitting.
* Prefix Command Arguments
How the commands to set prefix args work.
* Recursive Editing
Entering a recursive edit, and why you usually shouldn't.
* Disabling Commands
How the command loop handles disabled commands.
* Command History
How the command history is set up, and how accessed.
* Keyboard Macros
How keyboard macros are implemented.

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