Hi everyone. I'd ideally like a vim answer to this: I want to change [*, 1, *, *] to [*, 2, *, *] Here the stars refer to individual characters in the substring, which I would like to keep unchanged. For example [0, 1, 0, 1] to [0, 2, 0, 1] [1, 1, 1, 1] to [1, 2, 1, 1] If people know how to do this in perl or python or whatever, that would be equally good. Cheers