From bf63886de4c7fff252edd1e84b0d836067718354 Mon Sep 17 00:00:00 2001
From: Roger Pack <rogerpack@roger-packs-macbook-pro.local>
Date: Fri, 23 May 2008 17:16:40 -0600
Subject: [PATCH] adds syntax coloration to rails' error messages, making it easier to read and debug.
 The filename is shown in red, as well as the line that the error occurred on.

---
 .../templates/rescues/template_error.erb           |   11 +++++++++--
 1 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/actionpack/lib/action_controller/templates/rescues/template_error.erb b/actionpack/lib/action_controller/templates/rescues/template_error.erb
index eda64db..c473b71 100644
--- a/actionpack/lib/action_controller/templates/rescues/template_error.erb
+++ b/actionpack/lib/action_controller/templates/rescues/template_error.erb
@@ -4,12 +4,19 @@
 </h1>
 
 <p>
-  Showing <i><%=h @exception.file_name %></i> where line <b>#<%=h @exception.line_number %></b> raised:
+  Showing <i style="color: #300;"><%=h @exception.file_name %></i> where line <b>#<%=h @exception.line_number %></b> raised:
   <pre><code><%=h @exception.message %></code></pre>
 </p>
 
 <p>Extracted source (around line <b>#<%=h @exception.line_number %></b>):
-<pre><code><%=h @exception.source_extract %></code></pre></p>
+<%- line_regex = Regexp.new("^#{@exception.line_number}:") -%>
+<pre><code><%-	 @exception.source_extract.each_line do |line|
+	if line =~ line_regex
+		%><span style="color: #500;"><%=h line %></span><%
+	else
+		 %><%=h line %><%
+	end
+  end -%></code></pre></p>
 
 <p><%=h @exception.sub_template_message %></p>
 
-- 
1.5.5.1