An Hour Well Spent

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I spent a bout an hour at the office today getting my F6 mapped to to a vimscript function that tidies up the whitespace in my code.

Usually I map F6 to trim trailing whitespace, and F7 to replace tabs with spaces.

inoremap <F6> %s/\s+$//g <CR>

inoremap <F7> %s/\<TAB>/    /g <CR>

But today I decided that I was going to combine those two into a single TidyWS() vimscript function.

It turns out getting this to work cleanly was more challenging than I expected.

Long story short, here's how I did it.


function! TidyWS()
    let l:save = winsaveview()
    silent! %s/\s+$//g
    silent! %s/\<Tab>/    /g
    call winrestview(l:save)
    echo "whitespace tidied"
endfunction

nnoremap <F6> :call TidyWS()<CR>

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