this post was submitted on 19 Oct 2023
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Is there break undo in Emacs? (alien.top)
submitted 1 year ago by chesheersmile@alien.top to c/emacs
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I'm an Emacs newbie (using Doom Emacs with GNU Emacs 29.1). I came from vim, and battling with undo there was crazy enough, but I won using this:

inoremap  u
inoremap  u
inoremap  u
inoremap  u
inoremap  u
inoremap  u
inoremap  u
inoremap , ,u
inoremap . .u
inoremap ( (u
inoremap [ [u
inoremap = =u
inoremap \" \"u
inoremap  u
inoremap  u

Also, I had autogroup that breaks undo every 4 seconds.

Basically, this configuration breaks undo on almost every possible type command, every Spacebar, Enter, comma, bracket, moving up, down, everything. This is because I hate when undo deletes the whole screen of text.

How do I replicate this in Emacs? I read this, but it doesn't say what is considered a "recent change".

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[–] SnooPets20@alien.top 1 points 1 year ago

Do note that undo-tree not only provides a visual, it is a fundamentally different way of doing undos. The stock emacs way is not a tree, it's a line. There's no real "redo" in emacs for instance, you just undo an undo. It's odd, but undo tree works really well.