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A cheat sheet for most commonly used keyboard shortcuts while writing clojure code, using my emacs config at https://github.com/cmdrdats/emacs-ext
emacs OSX basicsEmacs Key | Name | OSX | M | Meta | Alt - ⌥ | C | Control | Ctrl | s | Special | Command - ⌘ | S | Shift | Shift |
Quick reference on reading emacs keys.
eg: C-M-x = Ctrl + ⌥ + x in OSX. C-s s = Ctrl + s, s Window ManagementM-s-arrow | Flip buffer in direction of arrow | s-arrow | Jump to window in direction of arrow | s-S-arrow | Resize in direction of arrow | C-x 3 | Split window vertically | C-x 2 | Split window horizontolly | C-x 1 | Unsplit everything |
Essential emacsC-x C-f | Open file | s-k | Kill current buffer | C-x b | Switch buffer | C-x C-b | Show buffer list | s-n | Find file in project | M-% | Search and replace in buffer | C-f | Find in buffer | F6 | Highlight regex | M-F6 | Unhighlight regex | C-g | Cancel current command |
| | nReplC-M-x | Evaluate top level form | C-x C-e | Evaluate preceding form | C-c C-b | Interrupt pending evals | C-c C-n | Eval the ns form | C-c M-n | Switch repl to curent ns | C-c C-z | Switch to REPL buffer | C-c M-o | Clear REPL buffer | C-c C-k | Load current buffer | C-c C-l | Load current file | M-. | Jump to def of current symbol | M-, | Return to pre-jump position | M-Tab | Complete symbol at point |
Clojure EditingC-M-Space | Select form after cursor, repeat for multiple | C-Left | Pull closing paren one form back | C-Right | Push closing paren one form forward | C-M-Left | Pull opening paren one form back | C-M-Right | Push opening paren one form forward | ESC-Up | Cut to beginning of form and remove parens | ESC-Down | Cut to end of form and remove parens | M-h | Select current top-level form* | M-i | Jump to symbol in current buffer |
*actually works with empty lines, not forms. But due to the way clojure is idiomatically written, this trick works well. | | Handy commands (M-x)cider | Open a new nRepl connection | cider-quit | Close nRepl | ack | Regex across your current project | make-directory | Create folder | dired | List and manage folders |
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I've never learned emacs and thought this would help me. But it looks to me, as a beginner, that some things are missing. How do I close a file without saving? How do I exit emacs? How do I save a file? Can I have multiple files open? How do I compile programs?
I'm not sure what all could be added to this. I'm not qualified to critique or even suggest. But it just felt like a few more commands might help someone who's trying to learn emacs.
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