From fd4d1d2183b6f1f41445ba0461799da71adfb11a Mon Sep 17 00:00:00 2001
From: Waylan Limberg <waylan.limberg@icloud.com>
Date: Sun, 5 Mar 2017 14:51:00 -0500
Subject: Loosen whitespace requirements for admonitions.

Also consume to the end of the first line of any admonition. Everything after
the title is discarded. However, the only thing that will match should be
whitespace so it should be a non-issue.
Fixes #550.
---
 markdown/extensions/admonition.py | 4 ++--
 tests/extensions/admonition.html  | 8 ++++++++
 tests/extensions/admonition.txt   | 8 ++++++++
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/markdown/extensions/admonition.py b/markdown/extensions/admonition.py
index 76e0fb5..0c5ce46 100644
--- a/markdown/extensions/admonition.py
+++ b/markdown/extensions/admonition.py
@@ -41,7 +41,7 @@ class AdmonitionProcessor(BlockProcessor):
 
     CLASSNAME = 'admonition'
     CLASSNAME_TITLE = 'admonition-title'
-    RE = re.compile(r'(?:^|\n)!!!\ ?([\w\-]+)(?:\ "(.*?)")?')
+    RE = re.compile(r'(?:^|\n)!!! ?([\w\-]+)(?: +"(.*?)")? *(?:\n|$)')
 
     def test(self, parent, block):
         sibling = self.lastChild(parent)
@@ -55,7 +55,7 @@ class AdmonitionProcessor(BlockProcessor):
         m = self.RE.search(block)
 
         if m:
-            block = block[m.end() + 1:]  # removes the first line
+            block = block[m.end():]  # removes the first line
 
         block, theRest = self.detab(block)
 
diff --git a/tests/extensions/admonition.html b/tests/extensions/admonition.html
index c900757..511d71a 100644
--- a/tests/extensions/admonition.html
+++ b/tests/extensions/admonition.html
@@ -28,4 +28,12 @@
 </div>
 <div class="admonition tip">
 <p>An explicitly empty string prevents the title from being rendered.</p>
+</div>
+<p>No body:</p>
+<div class="admonition note">
+<p class="admonition-title">Note</p>
+</div>
+<p>Extra whitespace after the title should not alter output:</p>
+<div class="admonition note">
+<p class="admonition-title">Note</p>
 </div>
\ No newline at end of file
diff --git a/tests/extensions/admonition.txt b/tests/extensions/admonition.txt
index d24336b..ab8434c 100644
--- a/tests/extensions/admonition.txt
+++ b/tests/extensions/admonition.txt
@@ -27,3 +27,11 @@ Not part of an Admonition!
 
 !!! tip ""
     An explicitly empty string prevents the title from being rendered.
+
+No body:
+
+!!! note
+
+Extra whitespace after the title should not alter output:
+
+!!! note             
-- 
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