md_tw.py: Add TWBlockLexer.parse_hrule.

* md_tw.py
(TWBlockLexer.parse_hrule): New method
* tests/test_md_tw.py
(TestTWBlockLexer.test_parse_hrule): New test.
* tests/data/blexer-hrules.md: New file.

1 files changed, 6 insertions, 0 deletions

diff --git a/md_tw.py b/md_tw.py
index 10bd0a8..238cbb2 100644
--- a/md_tw.py
+++ b/md_tw.py
@@ -67,6 +67,12 @@ class TWBlockLexer(mistune.BlockLexer):
             'text': m.group(0),
         })
 
+    def parse_hrule(self, m):
+        self.tokens.append({
+            'type': 'hrule',
+            'text': m.group(0)
+            })
+
 
 class TWInlineLexer(mistune.InlineLexer):
     """Text Wrap Inline level lexer for inline gramars."""