3 ms·

C-x r k C-x b *scr C-I C-x r y M-< (+ M-> ) C-j

• mxmdkdop 4y ago
  [flagged]
  • kriyative 4y ago
    I don't think they were trying to be. Broadly, those are the key bindings to copy a column of characters (presumably numbers) paste them into the `scratch` buffer and sum them, give or take some assumptions
• jgrahamc 4y ago
  "Kill" text in a "rectangle" and save its contents C-x r k Switch to the scratch buffer (think there's a missing RET at the end) C-x b *scr C-I "Yank" the "rectangle" saved in the first command C-x r y Moves to the start of the buffer and sets a "mark" M-< Literals that are entered at the start of the buffer (+ Move to the end of the buffer M-> Another literal ) Executes the buffer (or at least the LISP expression at the cursor). Note the scratch buffer allows you to type arbitrary LISP stuff and execute it with C-j. C-j So, suppose the initial buffer contained 1 1 2 3 Then the scratch buffer would get turned into (+1 1 2 3 ) And when executed this would add the list of numbers and look like this: (+ 1 1 2 3) 7
  • wging 4y ago
    > Switch to the scratch buffer (think there's a missing RET at the end) In vanilla emacs you need a RET, but I bet that like many people, OP's using a mechanism that will just select the matching item if there's a unique match, rather than the built-in buffer selection mechanism. I use ido (with flx-ido for fuzzy completions), and it works for me as stated: C-i in the minibuffer runs `ido-complete`, which selects the unique completion if there's only one. (By default, that is, this is emacs and so of course there's a variable `ido-confirm-unique-completion` that you can set to customize this behavior.)
• garethrees 4y ago
  Another way to sum a column of numbers uses calc: M-x calc-grab-rectangle RET V R +