After writing out a file, I would (sometimes, not always) like to prevent 'u' from undoing past the :w into old changes, e.g.,
- change #1 - change #2 - :w - change #3 - change #4 - 'u' undoes #4 and then #3, but then stops This seems like such a simple thing, but to my surprise it's less trivial than I thought it would be. The only thing in ":help undo" and its related tags which seems to be relevant is the undolevels variable. So maybe something like - copy undolevels into some temp variable // I don't remember the "let" syntax offhand - set undolevels=-1 - set undolevels=temp_holding_variable would work? A value of -1 disables undo altogether, so would this sequence kill the history and start it from scratch? -phil
