Allow inline attr_lists at end of header.

A header can be only one line - so unlike other block level elements, a
attr_list must be at th eend of the line. To disingush it from an inline
attr_list on the last child in a header, we must require at least one
space before th eblock-level attrt_list.

Always intended it to work that way. Not sure how I missed that before.
At least we're testing for it now.

3 files changed, 3 insertions, 3 deletions

diff --git a/markdown/extensions/attr_list.py b/markdown/extensions/attr_list.py
index 161c448..3d7fc46 100644
--- a/markdown/extensions/attr_list.py
+++ b/markdown/extensions/attr_list.py
@@ -67,7 +67,7 @@ def isheader(elem):
 class AttrListTreeprocessor(Treeprocessor):
     
     BASE_RE = r'\{\:?([^\}]*)\}'
-    HEADER_RE = re.compile(r'[ ]*%s[ ]*$' % BASE_RE)
+    HEADER_RE = re.compile(r'[ ]+%s[ ]*$' % BASE_RE)
     BLOCK_RE = re.compile(r'\n[ ]*%s[ ]*$' % BASE_RE)
     INLINE_RE = re.compile(r'^%s' % BASE_RE)
     NAME_RE = re.compile(r'[^A-Z_a-z\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02ff\u0370-\u037d'
diff --git a/tests/extensions/attr_list.html b/tests/extensions/attr_list.html
index b1ed85c..ad965fd 100644
--- a/tests/extensions/attr_list.html
+++ b/tests/extensions/attr_list.html
@@ -32,7 +32,7 @@ And a <strong class="nest">nested <a class="linky2" href="http://example.com" ti
 </li>
 <li>Item5</li>
 </ul>
-<p>And ordered lists too:</p>
+<h1>And ordered lists <em class="inline">too</em></h1>
 <ol>
 <li class="item">Item1</li>
 <li class="item">Item2<ol>
diff --git a/tests/extensions/attr_list.txt b/tests/extensions/attr_list.txt
index 8ecfe44..a841b87 100644
--- a/tests/extensions/attr_list.txt
+++ b/tests/extensions/attr_list.txt
@@ -49,7 +49,7 @@ Also a codespan: `{: .someclass}`{: .foo}.
     * Item4-1
 * Item5
 
-And ordered lists too:
+# And ordered lists *too*{.inline}
 
 1. Item1
    {: .item }