Vim scripting: Preserve cursor position and screen view in function call

Question

I have some Vim functions that make changes to the document format. When I call this function, I currently use something like the following to save and restore my cursor positio

Answer 1

You can save a mark for the first on-screen line that is displayed in the window and restore that as well. An example that executes a g? command on the whole buffer and restores both positions:

:noremap  mkHmlggg?G`lzt`k

Walking through the command:

• mk: set mark k for the current position
• H: go to the first on-screen line
• ml: set mark l for the this position
• ggg?G: execute the command
• ``l: jump to markl`
• zt: set this line the first on-screen line
• ``k: jump to markk`