From c974b96b88dc46b440cd7862e1d2cd7da5c8b1ae Mon Sep 17 00:00:00 2001
From: Yorick Peterse <yorickpeterse@gmail.com>
Date: Thu, 10 Apr 2014 10:08:51 +0200
Subject: [PATCH] Truncate lines in parser errors.

The offending lines of code displayed in the error message are truncated to 80
characters. This should make reading the error messages less of a pain when
dealing with very long lines of HTML/XML.
---
 lib/oga/xml/parser.y | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/oga/xml/parser.y b/lib/oga/xml/parser.y
index 27b366d..a208799 100644
--- a/lib/oga/xml/parser.y
+++ b/lib/oga/xml/parser.y
@@ -204,7 +204,13 @@ end
           prefix = '   '
         end
 
-        code << "#{prefix}#{number}: #{line.strip}\n"
+        line = line.strip
+
+        if line.length > 80
+          line = line[0..79] + ' (more)'
+        end
+
+        code << "#{prefix}#{number}: #{line}\n"
       end
     end