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recs-mode --- [R]eg[E]xp-based [C]ommand [S]uggestion

recs-mode is a simple command suggestion minor mode for GNU Emacs. recs-mode is free software, licensed under the GNU GPL.

The latest version of recs-mode can always be found here. You can also clone the repo by running

git clone git://

Say you discover a new, more efficient sequence of commands to do something. You want to start using it, but your muscle memory continues to do it the old way. Before long you forget the new way, and nothing changes. With recs-mode, Emacs can recognize the old pattern when you use it, and suggest the new the pattern, training you to be a better Emacs user.

recs-mode works by recording the names of the commands you enter into a ring-like string, which is then matched against a list of command name regular expressions. When a match is detected, recs-mode suggests a more efficient way of doing things. recs-mode looks strictly at sequences of commands, not sequences of keystrokes, avoiding complications resulting from different keybindings in different modes.

The advantage of this approach is that we can detect any command sequence that a regexp is powerful enough to match.

The disadvantage of this approach is that we can only detect command sequences that a regexp is powerful enough to match.


  • Definition of command patterns as standard Emacs regexps

  • Suggestions can be sent to the echo area or to another window. Having the window selected out from under you can get really annoying, making it desirable to learn quickly.

  • A timer to set the minimum interval between suggestions, per the Emacs TODO list (C-h C-t) guidelines.

Installation and Configuration

  • See the comments at the beginning of recs-mode.el for installation and configuration information.


recs-mode is released under the GNU GPL. See recs-mode.el


A simple regular expression-based command suggestion minor mode for Emacs






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