Collapse all whitespace in reference ids (#743)

Previously only newlines preceded by whitespace were collapsed. Fixes #742.

Author: facelessuser

docs/change_log/release-3.1.md

@@ -35,3 +35,4 @@ The following bug fixes are included in the 3.1 release:
 * Block level elements are defined per instance, not as class attributes
  (#731).
 * Double escaping of block code has been eliminated (#725).
+* Problems with newlines in references has been fixed (#742).

markdown/inlinepatterns.py

@@ -617,7 +617,7 @@ def handleMatch(self, m, data):
 
 class ReferenceInlineProcessor(LinkInlineProcessor):
  """ Match to a stored reference and return link element. """
- NEWLINE_CLEANUP_RE = re.compile(r'[ ]?\n', re.MULTILINE)
+ NEWLINE_CLEANUP_RE = re.compile(r'\s+', re.MULTILINE)
 
  RE_LINK = re.compile(r'\s?\[([^\]]*)\]', re.DOTALL | re.UNICODE)
 

tests/test_syntax/inline/test_links.py

@@ -134,3 +134,40 @@ def test_amp_in_url(self):
  '[title](http://example.com/?a=1&b=2)',
  '<p><a href="http://example.com/?a=1&#x26;b=2">title</a></p>'
  )
+
+ def test_reference_newlines(self):
+ """Test reference id whitespace cleanup."""
+
+ self.assertMarkdownRenders(
+ self.dedent(
+ """
+ Two things:
+
+ - I would like to tell you about the [code of
+ conduct][] we are using in this project.
+ - Only one in fact.
+
+ [code of conduct]: https://github.com/Python-Markdown/markdown/blob/master/CODE_OF_CONDUCT.md
+ """
+ ),
+ '<p>Two things:</p>\n<ul>\n<li>I would like to tell you about the '
+ '<a href="https://github.com/Python-Markdown/markdown/blob/master/CODE_OF_CONDUCT.md">code of\n'
+ ' conduct</a> we are using in this project.</li>\n<li>Only one in fact.</li>\n</ul>'
+ )
+
+ def test_reference_across_blocks(self):
+ """Test references across blocks."""
+
+ self.assertMarkdownRenders(
+ self.dedent(
+ """
+ I would like to tell you about the [code of
+
+ conduct][] we are using in this project.
+
+ [code of conduct]: https://github.com/Python-Markdown/markdown/blob/master/CODE_OF_CONDUCT.md
+ """
+ ),
+ '<p>I would like to tell you about the [code of</p>\n'
+ '<p>conduct][] we are using in this project.</p>'
+ )