From 4f04ff39e99792b3726acb97c4563829735ea9c5 Mon Sep 17 00:00:00 2001
From: Alexey Verkhovsky <averkhov@thoughtworks.com>
Date: Thu, 7 Apr 2005 05:15:46 +0000
Subject: [PATCH] Fixed a subtle bug in RedclothForTex

---
 app/controllers/wiki_controller.rb | 5 ++---
 lib/redcloth_for_tex.rb            | 2 +-
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/app/controllers/wiki_controller.rb b/app/controllers/wiki_controller.rb
index f11d5dc5..33ac665a 100644
--- a/app/controllers/wiki_controller.rb
+++ b/app/controllers/wiki_controller.rb
@@ -68,8 +68,7 @@ class WikiController < ApplicationController
 
   def export_tex
     file_name = "#{@web.address}-tex-#{@web.revised_on.strftime('%Y-%m-%d-%H-%M-%S')}.tex"
-    file_path = @wiki.storage_path + file_name
-
+    file_path = File.join(@wiki.storage_path, file_name)
     export_web_to_tex(file_path) unless FileTest.exists?(file_path)
     send_file file_path
   end
@@ -276,7 +275,7 @@ class WikiController < ApplicationController
   end
 
   def export_web_to_tex(file_path)
-    @tex_content = table_of_contents(@web.pages['HomePage'].content.dup, render_tex_web)
+    @tex_content = table_of_contents(@web.pages['HomePage'].content, render_tex_web)
     File.open(file_path, 'w') { |f| f.write(render_to_string('wiki/tex_web')) }
   end
 
diff --git a/lib/redcloth_for_tex.rb b/lib/redcloth_for_tex.rb
index c238ed7c..6bfb6a0f 100644
--- a/lib/redcloth_for_tex.rb
+++ b/lib/redcloth_for_tex.rb
@@ -13,7 +13,7 @@ end
 
 
 def table_of_contents(text, pages)
-  text.gsub!( /^([#*]+? .*?)$(?![^#*])/m ) do |match|
+  text.gsub( /^([#*]+? .*?)$(?![^#*])/m ) do |match|
     lines = match.split( /\n/ )
     last_line = -1
     depth = []