Re: how to execute ranger from gvim

On 12/03/2012 01:44 PM, Gary Johnson wrote:
> On 2012-12-03, ping wrote:
>> On 12/03/2012 12:56 PM, Gary Johnson wrote:
>>> On 2012-12-03, ping wrote:
>>>
>>>> On 08/09/2012 06:02 AM, Sepp Tannhuber wrote:
>>>>>
>>>>> I use the following function from the ranger manual:
>>>>> fun! RangerChooser()
>>>>> exec "silent !ranger --choosefile=/tmp/chosenfile" . expand("%:p:h")
>>>>> if filereadable('/tmp/chosenfile')
>>>>> exec 'edit ' . system('cat /tmp/chosenfile')
>>>>> call system('rm /tmp/chosenfile')
>>>>> endif
>>>>> redraw!
>>>>> endfun
>>>>> map ,r :call RangerChooser()<CR>
>>>
>>>> what's the problem with just :!ranger ?
>>>
>>> The function uses Ranger as a file chooser. Vim will edit the file
>>> you've chosen using Ranger in the current Vim instance. Using just
>>> :!ranger will let you edit a file chosen using Ranger, but in a new
>>> Vim instance.
>>>
>>> Regards,
>>> Gary
>>>
>> oh I got it now, yes that's great ideal then!
>>
>> but I just did a quick test of your code on vim (not gvim), I move my
>> cursor in ranger to a whatever file under my home ,say,
>> "/home/ping/file1.txt" and hit enter or 'l', I got
>> following error:
>> [Error 2] No such file or directory: '/tmp/chosenfile/home/ping'
>> guess I need to strip off "/tmp/chosenfile"?
>
> It's not my code. The OP claimed he used the function from the
> ranger manual.
>
> I tried that function and got the same error you did. But the
> function that I wrote about a year ago based on one in the ranger
> man page works fine.
>
> It's not immediately obvious to me what the problem with the OP's
> function is, but here's the one I use.
>
> ----------------------------- cut here -----------------------------
> " Vim plugin for using ranger as a file chooser
> " File: ranger.vim
> " Maintainer: Gary Johnson <garyjohn AT spocom DOT com>
> " Last Change: 2011-10-31 16:25:58
>
> " From the ranger(1) man page for ranger-1.5.2:
> "
> " VIM: File Chooser
> " This is a vim function which allows you to use ranger to select a file
> " for opening in your current vim session.
> "
> " fun! RangerChooser()
> " silent !ranger --choosefile=/tmp/chosenfile `[ -z '%' ] && echo -n . || dirname %`
> " if filereadable('/tmp/chosenfile')
> " exec 'edit ' . system('cat /tmp/chosenfile')
> " call system('rm /tmp/chosenfile')
> " endif
> " redraw!
> " endfun
> " map ,r :call RangerChooser()<CR>
> "
> " That function fails when executed in an empty, unnamed buffer with the
> " following messages:
> "
> " Error detected while processing function RangerChooser:
> " line 1:
> " E499: Empty file name for '%' or '#', only works with ":p:h": silent !ranger
> " --choosefile=/tmp/chosenfile `[ -z '%' ] && echo -n . || dirname %`
>
> " RangerChooser()
> "
> " Ranger version 1.4.2 or later is required to run this function. That's when
> " the --choosefile option was added.
>
> fun! RangerChooser(...)
> let tmpfile = tempname()
> if a:0 > 0 && a:1 != ""
> let dir = a:1
> elseif expand("%")
> let dir = "."
> else
> let dir = expand("%:p:h")
> endif
> exe 'silent !ranger --choosefile='.tmpfile dir
> if filereadable(tmpfile)
> exe 'edit' readfile(tmpfile)[0]
> call delete(tmpfile)
> endif
> redraw!
> endfun
> "map ,r :call RangerChooser()<CR>
> command -nargs=? RangerChooser call RangerChooser("<args>")
> --------------------------------------------------------------------
>
> Regards,
> Gary
>

that are really magic codes and great vim+ranger combination. It works, I don't quite understand exactly how it works though...

regards
ping