Re: Trailing ^M on Windows

Hi Tony,

I was actually writing a plugin for this, and since I could change its implementation I ended up with something like (note the call to substitute() right after system()):

function! s:paste(...) " {{{
  let l:after = get(a:, 1, 1)
  let reg_save = @@

  let @@ = system(g:cb_paste_prg)
  " XXX pastin on Windows somehow leaves trailing ^M
  " gotta figure out a better way to fix this, but
  " for now, this will do!
  let @@ = substitute(@@, "\r\n", "\n", "g")
  setlocal paste
  if l:after
    exe 'normal p'
  else
    exe 'normal P'
  endif
  setlocal nopaste

  let @@ = reg_save
endfunction " }}}

I will leave this here for a little while, and then I will probably cross-post it on vim_dev.

Thanks again for the help.

On Mon, Nov 18, 2019 at 10:43 PM Tony Mechelynck <antoine.mechelynck@gmail.com> wrote:

On Mon, Nov 18, 2019 at 4:11 PM Matteo Landi <matteo@matteolandi.net> wrote:
>
> Hi Tony,
>
> The thing is, :read! appears to be stripping ^M already, irrespective of the use of ++opts:
>
>   :read !powershell.exe Get-Clipboard
>   :read ++ff=unix !powershell.exe Get-Clipboard
>   :read ++ff=dos !powershell.exe Get-Clipboard
>
> To be honest, I'd expect the second one, where we specify ++ff=unix, to leave trailing ^M, but somehow that's not happening, and for your reference (after I vim -u NONE):
>
>   :verbose set ff
>
> Returns 'fileformat=unix'
>
>   :verbose set ffs
>
> Returns 'fileformats=unix,dos'
>
> So am I correct if I say that there is something "weird" going on with system()?  I also found the following at the end of system()'s help page, but somehow the experienced behavior is not the documented one:
>
>   To make the result more system-independent, the shell output
>   is filtered to replace <CR> with <NL> for Macintosh, and
>   <CR><NL> with <NL> for DOS-like systems.
>
> I even tried to give systemlist() a go, but each entry of the array still has that trailing ^M, so it really seems like Vim cannot properly guess the fileformat from the command output.
>
> I am really in the dark here.

So am I.

As a last resort, the following Normal-mode mapping will remove (after
the fact) all ^M characters found at he end of a line:

:map <F5> :%s/<Ctrl-M>$//<CR>

Of course, you can replace <F5> by something else (if for instance
your Normal-mode F5 key is already mapped).

Meaning of the {rhs}:
        :       start an ex-command
        %       or 1,$ : from top to bottom of the file
        s       :s[ubstitute] (search and replace)
        /       replace what
        <Ctrl-M>  (typed as such: less-than, C, etc.) : ^M (carriage return)
        $       at end-of-line
        /       replace by what
        (nothing)   replace by nothing
        /       end of replace-what text
        (nothing)   no flags: replace once (at most) per line (N.B.
there can be only one end-of-line per line)
        <CR>    end of ex-command

Best regards,
Tony.

--
--
You received this message from the "vim_use" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

---
You received this message because you are subscribed to the Google Groups "vim_use" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/vim_use/CAJkCKXsaTWz2Mw-8nKe5H05_2WFG_iPNnEtMa1bCQ3aN0Ja-7g%40mail.gmail.com.

--
--
You received this message from the "vim_use" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

---
You received this message because you are subscribed to the Google Groups "vim_use" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/vim_use/CAKpQHWbLxLLvgQhRBX1b5Lg8xZZYWKAM-rJa4aw3Ofvyhkaqug%40mail.gmail.com.