Merge pull request #472 from tomtomjhj/ex-fnameescape

fix: fnameescape args for ex action

Author: lambdalisue

autoload/fern/scheme/file/mapping/ex.vim

@@ -26,7 +26,7 @@ function! s:map_ex(helper) abort
     return
   endif
   call feedkeys("\<Home>", 'in')
-  let expr = join(map(copy(nodes), { _, v -> fnamemodify(v._path, ':~:.') }), ' ')
+  let expr = join(map(copy(nodes), { _, v -> fnameescape(fnamemodify(v._path, ':~:.')) }), ' ')
   let expr = input(':', ' ' . expr, 'command')
   if empty(expr)
     return

doc/fern.txt

@@ -1136,7 +1136,7 @@ The following mappings/actions are only available on file:// scheme.
 *<Plug>(fern-action-ex)*
 *<Plug>(fern-action-ex=)*
 	Open a prompt to execute an Ex command with a path of cursor node or
-	paths of marked nodes.
+	paths of marked nodes. The paths are |fnameescape()|ed.
 	You can use a "=" variant to apply values to the prompt and/or submit
 	a value like:
 >