Undo function

[shnupta]

Allow the previous few operations to be undone by the user.

Current undo needs:

• Should bind to ctrl-z in insert mode
• Should bind to ctrl-z and u in normal mode
• Should be able to undo at least the last 25 operations.
• Ctrl-r for redo. (undo the last undo)

[anfly0]

I think that it would be a good idea to flesh out some more details about this feature.
If nothing else, we can get a discussion going!

I'll start:

• Should bind to ctrl-z in insert mode
• Should bind to ctrl-z and u in normal mode
• Should be able to undo at least the last 25 operations.

[shnupta]

@anfly0

Nice suggestions. I'll also add:

• Ctrl-r for redo. (undo the last undo)

[HeyAEE]

I'd like to try working on this as my first OSS contribution!

[anfly0]

@HeyAEE I don't think there is anyone else working on this, so there would be no harm in trying!
Just to satisfy my curiosity, what are your thoughts about how to implement this?
If you are up for it I would be happy to help!

[shnupta]

@HeyAEE any progress on this?

[dblnz]

If there's nobody working on this I would like to give it a try.

[andy5995]

How's it coming along, @BlanzeanuDoru ?

[dblnz]

I Haven’t started yet, wanted to see whether anybody is currently working on this

[andy5995]

Oh, I see. No one has said they were working on it in 6 months, so feel free. :) I think a linked list would be the way to go, but I haven't ever done anything like this before. Have ideas on how you'd start, @BlanzeanuDoru

[dblnz]

I haven't got the chance to look over the code very thoroughly, I'll do that in the weekend, I have a very tight schedule this week. I'll comment with what my solution is before starting to implement,

[andy5995]

I'll open this ticket for others to work on now. Anyone interested please leave a comment.