From 9aa8f5a42643184f0426b9a575fde5294b1225b0 Mon Sep 17 00:00:00 2001
From: Jannis Leidel <jannis@leidel.info>
Date: Sat, 19 May 2012 15:32:26 +0200
Subject: [PATCH] Use regex in the lxml parser to support case-insensitive
 attribute parsing

---
 compressor/css.py         | 1 -
 compressor/parser/lxml.py | 4 +++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/compressor/css.py b/compressor/css.py
index 2f5df67..ffd0069 100644
--- a/compressor/css.py
+++ b/compressor/css.py
@@ -1,6 +1,5 @@
 from compressor.base import Compressor, SOURCE_HUNK, SOURCE_FILE
 from compressor.conf import settings
-from compressor.exceptions import UncompressableFileError
 
 
 class CssCompressor(Compressor):
diff --git a/compressor/parser/lxml.py b/compressor/parser/lxml.py
index 8e26b2a..955ca56 100644
--- a/compressor/parser/lxml.py
+++ b/compressor/parser/lxml.py
@@ -33,7 +33,9 @@ class LxmlParser(ParserBase):
         return tree
 
     def css_elems(self):
-        return self.tree.xpath('link[@rel="stylesheet"]|style')
+        return self.tree.xpath(
+            '//meta[re:test(., "^link\[\@rel=\"stylesheet\"\]|style$", "i")]',
+            namespaces={"re": "http://exslt.org/regular-expressions"})
 
     def js_elems(self):
         return self.tree.findall('script')