Update vim_file_chooser.vim

Allow choosing multiple files.
Add ex command :RangerChooser.
Use the value of mapleader for the keybinding.

1 files changed, 27 insertions, 11 deletions

diff --git a/doc/examples/vim_file_chooser.vim b/doc/examples/vim_file_chooser.vim
index 4f5fa3f2..064fbab6 100644
--- a/doc/examples/vim_file_chooser.vim
+++ b/doc/examples/vim_file_chooser.vim
@@ -2,16 +2,32 @@
 "
 " Add ranger as a file chooser in vim
 "
-" If you add this function and the key binding to the .vimrc, ranger can be
-" started using the keybinding ",r".  Once you select a file by pressing
-" enter, ranger will quit again and vim will open the selected file.
+" If you add this code to the .vimrc, ranger can be started using the command
+" ":RagerChooser" or the keybinding "<leader>r".  Once you select one or more
+" files, press enter and ranger will quit again and vim will open the selected
+" files.
 
-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')
+function! RangeChooser()
+    let temp = tempname()
+    " The option "--choosefiles" was added in ranger 1.5.1. Use the next line
+    " with ranger 1.4.2 through 1.5.0 instead.
+    "exec 'silent !ranger --choosefile=' . shellescape(temp)
+    exec 'silent !ranger --choosefiles=' . shellescape(temp)
+    if !filereadable(temp)
+        " Nothing to read.
+        return
     endif
-    redraw!
-endfun
-map ,r :call RangerChooser()<CR>
+    let names = readfile(temp)
+    if empty(names)
+        " Nothing to open.
+        return
+    endif
+    " Edit the first item.
+    exec 'edit ' . fnameescape(names[0])
+    " Add any remaning items to the arg list/buffer list.
+    for name in names[1:]
+        exec 'argadd ' . fnameescape(name)
+    endfor
+endfunction
+command! -bar RangerChooser call RangeChooser()
+nnoremap <leader>r :<C-U>RangerChooser<CR>