This is forked version and here is what modified by @andrwj

• Key has been changed to bar symbol (|) for my own conveniant, so that it can be open/close by same key.
• Now *cheatsheet* buffer does not open twice. (I think it was kind of bug)

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Cheatsheet.el

Cheatsheet.el is a tool for creating your own Emacs cheatsheet. Why I've created this plugin:

• I want to start using new plugin without learning keys - cheatsheet.el lets you to define keys you want to be able to find quickly
• I don't need to see all keys, defined in different keymaps
• I don't need to see all keys, defined in any plugin
• I want to write my own key description
• I want to see commands near the keys in my cheatsheet

All this problems can be solved using cheatsheet.el

Getting started

• Get cheatsheet.el
  • Via MELPA
  • Manually download cheatsheet.el and set-up your load path. Find out more.
• Load package - (require 'cheatsheet)
• Add your first cheat:

(cheatsheet-add :group 'Common
                :key "C-x C-c"
                :description "leave Emacs.")

• Run (cheatsheet-show) and enjoy :-)

Plugin API

cheatsheet-add

Command to add a new cheat to your cheatsheet.

(cheatsheet-add :group 'Common
                :key "C-x C-c"
                :description "leave Emacs.")

cheatsheet-add-group

Command to add cheats to the same group.

(cheatsheet-add-group 'Common
                      '(:key "C-x C-c" :description "leave Emacs")
                      '(:key "C-x C-f" :description "find file"))

cheatsheet-get

Command to get current cheatsheet as list of groups, keeping defining order.

• Cheat is a plist that looks like this [:group :key :description]. :group, :key, :description are symbols or strings
• Group is a plist that looks like this [:name :cheats]. :name is a symbol or string, :cheats is a list of CHEATs
• Cheatsheet is a list of GROUPs - result of cheatsheet-get command

cheatsheet-show

Show buffer with your cheatsheet. Can be closed via C-q key.

Enjoy using cheatsheet.el

P.S. Thanks @rmuslimov for code review and elisp help!