From 73a0777705cdf780a449f3dc4fa92938e279b75a Mon Sep 17 00:00:00 2001
From: Jeremy Ashkenas <jashkenas@gmail.com>
Date: Thu, 24 Dec 2009 14:51:53 -0800
Subject: [PATCH] outdent lexing is correct now, I think

---
 lib/coffee_script/lexer.rb | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/coffee_script/lexer.rb b/lib/coffee_script/lexer.rb
index bb25ed07..aeb266d4 100644
--- a/lib/coffee_script/lexer.rb
+++ b/lib/coffee_script/lexer.rb
@@ -122,6 +122,7 @@ module CoffeeScript
       @i += comment.length
     end
 
+    # Record tokens for indentation differing from the previous line.
     def indent_token
       return false unless indent = @chunk[INDENT, 1]
       size = indent.size
@@ -132,8 +133,8 @@ module CoffeeScript
         @indents << @indent
       else
         tag = :OUTDENT
-        @indents.pop
-        @indent = @indents.first || 0
+        @indents.pop while @indents.last && ((@indents.last || 0) > size)
+        @indent = @indents.last || 0
       end
       @i += (size + 1)
       token(tag, size)