Added smart_strong extension. Fixes Issue #17. Like PHP Markdown Extra, we now include smart handling of double underscores (not just single underscores). The new behavior may be called seperately as the 'smart_strong' extension or as part of the 'extra' extension.

2 files changed, 31 insertions, 0 deletions

diff --git a/docs/extensions/Smart_Strong.txt b/docs/extensions/Smart_Strong.txt
new file mode 100644
index 0000000..c939016
--- /dev/null
+++ b/docs/extensions/Smart_Strong.txt
@@ -0,0 +1,30 @@
+Smart_Strong
+------------
+
+Summary
+
+The Markdown Smart_Strong Extension adds smarter handling of double underscores
+within words. This does for double underscores what 'smart_emphasis' does for 
+single underscores.
+
+The Smart_Strong Extension is included in the standard Markdown library.
+
+Usage
+-----
+
+    >>> import markdown
+    >>> markdown.markdown('Text with double__underscore__words.', \
+                          extensions=['smart_strong'])
+    u'<p>Text with double__underscore__words.</p>'
+    >>> markdown.markdown('__Strong__ still works.', \
+                          extensions=['smart_strong'])
+    u'<p><strong>Strong</strong> still works.</p>'
+    >>> markdown.markdown('__this__works__too__.', \
+                          extensions=['smart_strong'])
+    u'<p><strong>this__works__too</strong>.</p>'
+
+This extension is also included with the [[Extra]] Extension. You may call that
+extension to get this behavior with all the other features of 'Extra'.
+
+    >>> markdown.markdown(text, extensions=['extra'])
+
diff --git a/docs/extensions/extra.txt b/docs/extensions/extra.txt
index 817d58f..018a849 100644
--- a/docs/extensions/extra.txt
+++ b/docs/extensions/extra.txt
@@ -15,6 +15,7 @@ The supported extensions include:
 * [[Footnotes]]
 * [[HeaderId]]
 * [[Tables]]
+* [[Smart_Strong]]
 
 See each individual extension for syntax documentation. Extra and all it's 
 supported extensions are included in the standard Markdown library.