Undo

Jade makes it very easy to undo changes to a buffer, this is very useful when you realise that actually, that wasn't the part of the file you wanted to delete!

Basically to undo the last command type either Ctrl-_ or Ctrl-x u. If the last thing you did was to type some text into the buffer all the consecutively-typed characters count as one command.

To undo more than one command, simply type more than one Ctrl-_ (or Ctrl-x u) consecutively; this will progressively work its way back through the buffer's history. The first non-undo command cancels this effect, so if you undo too far back invoke a command which doesn't modify the buffer, then undo whatever you undid.

Ctrl-_

Ctrl-x u

Undo the previous command, or the last block of consecutively typed characters. Successive undo commands work backwards though the undo-history until a non-undo command is invoked.

The exact amount of undo-information kept for each buffer is controlled by the max-undo-size variable. This defines the maximum number of bytes which may be devoted to undo-information in a single buffer, the default is 10000. No matter what this is set to, the last command is always recoverable.

Variable: max-undo-size

The maximum memory which may be devoted to recording undo-information in each buffer.

Go to the first, previous, next, last section, table of contents.