From c9388ce767278ec968a5a8ee8874a9b624d0b749 Mon Sep 17 00:00:00 2001
From: Domenic Denicola <domenic@domenicdenicola.com>
Date: Sun, 8 Jul 2012 22:52:13 -0400
Subject: [PATCH] Strip UTF-8 BOM when require'ing .coffee modules.

Allows people to author their .coffee files with UTF-8 BOMs at the start, because sometimes that happens. Fixes #798.
---
 src/coffee-script.coffee | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/coffee-script.coffee b/src/coffee-script.coffee
index 2933aebf..fbba55bf 100644
--- a/src/coffee-script.coffee
+++ b/src/coffee-script.coffee
@@ -12,10 +12,13 @@ path             = require 'path'
 {parser}         = require './parser'
 vm               = require 'vm'
 
+stripBOM = (content) ->
+  if content.charCodeAt 0 is 0xFEFF then content.substring 1 else content
+
 # TODO: Remove registerExtension when fully deprecated.
 if require.extensions
   require.extensions['.coffee'] = (module, filename) ->
-    content = compile fs.readFileSync(filename, 'utf8'), {filename}
+    content = compile stripBOM fs.readFileSync(filename, 'utf8'), {filename}
     module._compile content, filename
 else if require.registerExtension
   require.registerExtension '.coffee', (content) -> compile content