4 ms·

I somehow have been using Emacs for 15 years without knowing such a thing existed. I've been using lisp-interactive-mode for this purpose.

kickaha 4y ago
Same here! I will definitely check it out.
donio 4y ago
Yeah, it's interesting that Emacs has ended up with lisp-interactive-mode as the primary "REPL" (even though it's not exactly the same thing). Kind of like the type-anywhere interactive input in Commodore BASICs vs using a dedicated line.
mickeyp 4y ago
I've written about all the different methods here: https://www.masteringemacs.org/article/evaluating-elisp-emacs https://www.masteringemacs.org/article/evaluating-elisp-emac...
- nonfamous 4y ago
  This is a great guide!
agumonkey 4y ago
"I somehow have been using Emacs for 15 years without knowing <thing> existed" could be the emacs manual title (or any large system tbh)
nemoniac 4y ago
I've been using Emacs for over 30 years without ever needing such a thing. Just evaluate in scratch, keep what you want, delete the rest.
timonoko 4y ago
I have been using Emacs ~50 years, and I have always hoped all of the history would be visible as lisp-expressions which you could view and modify in interactive mode. It is somewhere there because undo knows it. Typical example is that you fumble something splendid/stupid with fat fingers and then cant figure out what you just did.
- timonoko 4y ago
  Googled it and there is already (global-undo-tree-mode) (setq undo-tree-auto-save-history t) (setq undo-tree-history-directory-alist '(("." . "~/.emacs.d/undo"))) I did not know that.
- kagevf 4y ago
  I think C-h l (lossage) shows the keys and function names.
  - timonoko 4y ago
    Yes it does. Why did not I know that? -- Because (view-lossage) is weird name for this.
    - kagevf 4y ago
      Agree ... I don't know where the name comes from, but I've become used to it since I use C-h l frequently. I asked chat gpt about it, and what it said seemed to match what I found when I googled it: > In Emacs, “Lossage” refers to a section in the GNU Emacs Manual that describes how to recognize and deal with situations in which Emacs does not work as expected1. For example, it covers issues such as keyboard code mixups, garbled displays, running out of memory, and crashes and hangs1. > There is also a command called view-lossage that displays the last 300 input keystrokes2. You can use open-dribble-file to record all your input on a file2.

kickaha 4y ago

Same here! I will definitely check it out.

donio 4y ago

Yeah, it's interesting that Emacs has ended up with lisp-interactive-mode as the primary "REPL" (even though it's not exactly the same thing). Kind of like the type-anywhere interactive input in Commodore BASICs vs using a dedicated line.

mickeyp 4y ago

I've written about all the different methods here: https://www.masteringemacs.org/article/evaluating-elisp-emacs https://www.masteringemacs.org/article/evaluating-elisp-emac...

nonfamous 4y ago
This is a great guide!

agumonkey 4y ago

"I somehow have been using Emacs for 15 years without knowing <thing> existed" could be the emacs manual title (or any large system tbh)

nemoniac 4y ago

I've been using Emacs for over 30 years without ever needing such a thing. Just evaluate in scratch, keep what you want, delete the rest.

timonoko 4y ago

I have been using Emacs ~50 years, and I have always hoped all of the history would be visible as lisp-expressions which you could view and modify in interactive mode. It is somewhere there because undo knows it. Typical example is that you fumble something splendid/stupid with fat fingers and then cant figure out what you just did.

timonoko 4y ago
Googled it and there is already (global-undo-tree-mode) (setq undo-tree-auto-save-history t) (setq undo-tree-history-directory-alist '(("." . "~/.emacs.d/undo"))) I did not know that.
kagevf 4y ago
I think C-h l (lossage) shows the keys and function names.
- timonoko 4y ago
  Yes it does. Why did not I know that? -- Because (view-lossage) is weird name for this.
  - kagevf 4y ago
    Agree ... I don't know where the name comes from, but I've become used to it since I use C-h l frequently. I asked chat gpt about it, and what it said seemed to match what I found when I googled it: > In Emacs, “Lossage” refers to a section in the GNU Emacs Manual that describes how to recognize and deal with situations in which Emacs does not work as expected1. For example, it covers issues such as keyboard code mixups, garbled displays, running out of memory, and crashes and hangs1. > There is also a command called view-lossage that displays the last 300 input keystrokes2. You can use open-dribble-file to record all your input on a file2.