[thomasballinger]

If anyone wants to walk through these ideas more slowly I write about them in http://ballingt.com/interactive-interpreter-undo and implement this in https://github.com/thomasballinger/rlundo but as you say, eventually decided I had to implement an interpreter for which serialization of state was more efficient and all external resources had amenable interfaces http://dalsegno.ballingt.com/

[malux85]

Will you marry me?

this is really cool, I'm going to give deeper into the code tonight. Awesome work

[detaro]

hooking into readline is a clever idea!