dan%ivy@SUN.COM (Dan Walsh) (07/11/89)
More than once I have mistakenly tried to reformat a paragraph in an nroff document (M-q) only to have emacs reformat the whole document. When I try to undo this change, I get a message that there is too much to undo. This makes me very unhappy. Ideally I would like to see enough undo space to be able to undo the effects of a single keystroke. Less ideally, I'd like a mode where I would get prompted about running out of undo space and queried as to whether I really want to do this. I suppose this isn't *really* a bug, as it is documented that there is limited undo space. However, it has shaken my confidence about emacs, and I would be willing to pay some space and/or time in emacs to have this not happen to me again. Thanks, Dan Walsh (dan@Sun.COM)
rusty@garnet.berkeley.edu (07/11/89)
I've also been bitten by accidently doing something that changes the entire file and not being able to undo it. It is really aggravating. With me it was usually typing C-x C-u (upcase-region) when I meant to type C-x u (undo). I've given up in desperation and did a global-unset-key on C-x C-u in my .emacs file. Another possibility, instead of querying, is for emacs to force an auto save or create a backup before doing something that it won't be able to undo. Then at least you can kill the buffer (or emacs) and do an M-x recover-file. -- -------------------------------------- rusty c. wright rusty@violet.berkeley.edu ucbvax!violet!rusty