smart_emphasis keyword > legacy_em extension.

The smart_strong extension has been removed and its behavior is now the
default (smart em and smart strong are the default). The legacy_em
extension restores legacy behavior (no smart em or smart strong).

This completes the removal of keywords.  All parser behavior is now
modified by extensions, not by keywords on the Markdown class.

7 files changed, 43 insertions, 7 deletions

diff --git a/tests/misc/em_strong_complex.html b/tests/misc/em_strong_complex.html
index 3befa70..65faddf 100644
--- a/tests/misc/em_strong_complex.html
+++ b/tests/misc/em_strong_complex.html
@@ -1,7 +1,7 @@
 <p><em><strong>test test</strong> test test</em></p>
 <p><strong><em>test test</em> test test</strong></p>
 <p><strong><em>test</em></strong></p>
-<p><strong>test</strong>_</p>
+<p><strong>test</strong></p>
 <p><strong><em>test</em> test</strong>_</p>
 <p><strong><em>test</em> test</strong></p>
 <p><em>test_test test_test</em></p>
diff --git a/tests/misc/em_strong_complex.txt b/tests/misc/em_strong_complex.txt
index 66f4ff1..0425971 100644
--- a/tests/misc/em_strong_complex.txt
+++ b/tests/misc/em_strong_complex.txt
@@ -4,7 +4,7 @@ ___test test_ test test__
 
 ___test___
 
-__test___
+__test__
 
 ___test_ test___
 
diff --git a/tests/misc/underscores.html b/tests/misc/underscores.html
index 54bd9f9..72d51b8 100644
--- a/tests/misc/underscores.html
+++ b/tests/misc/underscores.html
@@ -1,6 +1,6 @@
 <p>THIS_SHOULD_STAY_AS_IS</p>
 <p>Here is some <em>emphasis</em>, ok?</p>
 <p>Ok, at least <em>this</em> should work.</p>
-<p>THIS<strong>SHOULD</strong>STAY</p>
+<p>THIS__SHOULD__STAY</p>
 <p>Here is some <strong>strong</strong> stuff.</p>
 <p>THIS<strong><em>SHOULD</em></strong>STAY?</p>
\ No newline at end of file
diff --git a/tests/options/no-smart-emphasis.html b/tests/options/no-smart-emphasis.html
deleted file mode 100644
index c4f1381..0000000
--- a/tests/options/no-smart-emphasis.html
+++ /dev/null
@@ -1 +0,0 @@
-<p><em>connected</em>words_</p>
\ No newline at end of file
diff --git a/tests/options/no-smart-emphasis.txt b/tests/options/no-smart-emphasis.txt
deleted file mode 100644
index cf500b5..0000000
--- a/tests/options/no-smart-emphasis.txt
+++ /dev/null
@@ -1 +0,0 @@
-_connected_words_
\ No newline at end of file
diff --git a/tests/test_legacy.py b/tests/test_legacy.py
index 976a84e..0d0dd09 100644
--- a/tests/test_legacy.py
+++ b/tests/test_legacy.py
@@ -46,8 +46,6 @@ class TestOptions(LegacyTestCase):
 
     html4 = Kwargs(output_format='html4')
 
-    no_smart_emphasis = Kwargs(smart_emphasis=False)
-
 
 class TestPhp(LegacyTestCase):
     """
diff --git a/tests/test_syntax/extensions/test_legacy_em.py b/tests/test_syntax/extensions/test_legacy_em.py
new file mode 100644
index 0000000..ddb2079
--- /dev/null
+++ b/tests/test_syntax/extensions/test_legacy_em.py
@@ -0,0 +1,40 @@
+# -*- coding: utf-8 -*-
+"""
+Python Markdown
+
+A Python implementation of John Gruber's Markdown.
+
+Documentation: https://python-markdown.github.io/
+GitHub: https://github.com/Python-Markdown/markdown/
+PyPI: https://pypi.org/project/Markdown/
+
+Started by Manfred Stienstra (http://www.dwerg.net/).
+Maintained for a few years by Yuri Takhteyev (http://www.freewisdom.org).
+Currently maintained by Waylan Limberg (https://github.com/waylan),
+Dmitry Shachnev (https://github.com/mitya57) and Isaac Muse (https://github.com/facelessuser).
+
+Copyright 2007-2018 The Python Markdown Project (v. 1.7 and later)
+Copyright 2004, 2005, 2006 Yuri Takhteyev (v. 0.2-1.6b)
+Copyright 2004 Manfred Stienstra (the original version)
+
+License: BSD (see LICENSE.md for details).
+"""
+
+from __future__ import unicode_literals
+from markdown.test_tools import TestCase
+
+
+class TestLegacyEm(TestCase):
+    def test_legacy_emphasis(self):
+        self.assertMarkdownRenders(
+            '_connected_words_',
+            '<p><em>connected</em>words_</p>',
+            extensions=['legacy_em']
+        )
+
+    def test_legacy_strong(self):
+        self.assertMarkdownRenders(
+            '__connected__words__',
+            '<p><strong>connected</strong>words__</p>',
+            extensions=['legacy_em']
+        )