On Sun, May 12, 2013 at 10:01:37PM +0200, Sylvia Ganush wrote:
> Hello.
> I'm lost: one same substitution command works fine if executed from the
> command line, but gets broken if executed via a mapping.
> To remove trailing spaces I do:
> :%s/\s\+$//
> And it works perfectly. Since it's such a useful command I add this
> mapping to my .vimrc:
> nmap <leader>w :%s/\s\+$// <cr>
> But when I use the mapping, many extra lines get deleted and the text is
> mangled.
> I expect the mapping to yield the same result as the direct command, but
> it doesn't. What gives?
I'd start by checking mappings as Tim suggested -- then I'd use a
function so I can (a) save and restore the current cursor position and
(b) save and restore the last search register so I'm not blinded by
highlighted spaces every time I insert one at the end of future lines:
let mapleader = ','
nnoremap <Leader>a :call StripTrailingWhitespace()<CR>
function! StripTrailingWhitespace()
let _s=@/
let l = line(".")
let c = col(".")
%s/\s\+$//e
let @/=_s
call cursor(l, c)
endfunction
also I added the 'e' option so as not to be harassed with warnings if
there are no trailing spaces
sc
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