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I have the following autocommand, which basically strips whitespace at the end of each line. Unfortunately, at each save, it inserts a step into the undo to jump to the beginning to the file, which is quite annoying. Is there a way to make vim ignore jumping around in the following command, so that undoing keeps the cursor in position?

autocmd BufWritePre *
    \ let s:bufwritepre_currline = line('.') |
    \ let s:bufwritepre_currcol = col('.')   |
    \ silent %s/\s*$//                       |
    \ call cursor(s:bufwritepre_currline, s:bufwritepre_currcol)
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Unrelated to the question, but for restoring cursor position, winsaveview()/winrestview() is probably preferable over the line()/col()/cursor() solution given in your example. –  Søren Løvborg May 15 '11 at 21:32

1 Answer 1

Have you tried upgrading vim? I've just tried that in vim7.3 on ubuntu and it worked fine, stripped all the whitespace and left the cursor in the same place.

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The problem is not the cursor position, but the fact that it inserts a movement in the undo history. You can see what I mean if you have a longer file (multiple screen pages), run the autocmd, and then undo something. –  Dave Vogt Nov 1 '10 at 8:50

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