From 2078255ec39c078fc15b826a09da85b1c3e47774 Mon Sep 17 00:00:00 2001
From: w0rp <devw0rp@gmail.com>
Date: Sat, 11 Feb 2017 20:34:14 +0000
Subject: [PATCH] Fix filename substitution, especially on Windows

---
 autoload/ale/engine.vim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/autoload/ale/engine.vim b/autoload/ale/engine.vim
index 6815f39..a5bf309 100644
--- a/autoload/ale/engine.vim
+++ b/autoload/ale/engine.vim
@@ -300,7 +300,7 @@ function! ale#engine#FormatCommand(buffer, command) abort
     " file.
     if l:command =~# '%s'
         let l:filename = fnamemodify(bufname(a:buffer), ':p')
-        let l:command = substitute(l:command, '%s', fnameescape(l:filename), 'g')
+        let l:command = substitute(l:command, '%s', '\=fnameescape(l:filename)', 'g')
     endif
 
     if l:command =~# '%t'
@@ -311,7 +311,7 @@ function! ale#engine#FormatCommand(buffer, command) abort
         \   . (has('win32') ? '\' : '/')
         \   . fnamemodify(bufname(a:buffer), ':t')
 
-        let l:command = substitute(l:command, '%t', fnameescape(l:temporary_file), 'g')
+        let l:command = substitute(l:command, '%t', '\=fnameescape(l:temporary_file)', 'g')
     endif
 
     " Finish formatting so %% becomes %.