Index: third_party/Python-Markdown/markdown/extensions/meta.py |
diff --git a/third_party/Python-Markdown/markdown/extensions/meta.py b/third_party/Python-Markdown/markdown/extensions/meta.py |
new file mode 100644 |
index 0000000000000000000000000000000000000000..711235ef4a3433d1e8098ce092775be7a42e2127 |
--- /dev/null |
+++ b/third_party/Python-Markdown/markdown/extensions/meta.py |
@@ -0,0 +1,78 @@ |
+""" |
+Meta Data Extension for Python-Markdown |
+======================================= |
+ |
+This extension adds Meta Data handling to markdown. |
+ |
+See <https://pythonhosted.org/Markdown/extensions/meta_data.html> |
+for documentation. |
+ |
+Original code Copyright 2007-2008 [Waylan Limberg](http://achinghead.com). |
+ |
+All changes Copyright 2008-2014 The Python Markdown Project |
+ |
+License: [BSD](http://www.opensource.org/licenses/bsd-license.php) |
+ |
+""" |
+ |
+from __future__ import absolute_import |
+from __future__ import unicode_literals |
+from . import Extension |
+from ..preprocessors import Preprocessor |
+import re |
+import logging |
+ |
+log = logging.getLogger('MARKDOWN') |
+ |
+# Global Vars |
+META_RE = re.compile(r'^[ ]{0,3}(?P<key>[A-Za-z0-9_-]+):\s*(?P<value>.*)') |
+META_MORE_RE = re.compile(r'^[ ]{4,}(?P<value>.*)') |
+BEGIN_RE = re.compile(r'^-{3}(\s.*)?') |
+END_RE = re.compile(r'^(-{3}|\.{3})(\s.*)?') |
+ |
+ |
+class MetaExtension (Extension): |
+ """ Meta-Data extension for Python-Markdown. """ |
+ |
+ def extendMarkdown(self, md, md_globals): |
+ """ Add MetaPreprocessor to Markdown instance. """ |
+ md.preprocessors.add("meta", |
+ MetaPreprocessor(md), |
+ ">normalize_whitespace") |
+ |
+ |
+class MetaPreprocessor(Preprocessor): |
+ """ Get Meta-Data. """ |
+ |
+ def run(self, lines): |
+ """ Parse Meta-Data and store in Markdown.Meta. """ |
+ meta = {} |
+ key = None |
+ if lines and BEGIN_RE.match(lines[0]): |
+ lines.pop(0) |
+ while lines: |
+ line = lines.pop(0) |
+ m1 = META_RE.match(line) |
+ if line.strip() == '' or END_RE.match(line): |
+ break # blank line or end of YAML header - done |
+ if m1: |
+ key = m1.group('key').lower().strip() |
+ value = m1.group('value').strip() |
+ try: |
+ meta[key].append(value) |
+ except KeyError: |
+ meta[key] = [value] |
+ else: |
+ m2 = META_MORE_RE.match(line) |
+ if m2 and key: |
+ # Add another line to existing key |
+ meta[key].append(m2.group('value').strip()) |
+ else: |
+ lines.insert(0, line) |
+ break # no meta data - done |
+ self.markdown.Meta = meta |
+ return lines |
+ |
+ |
+def makeExtension(*args, **kwargs): |
+ return MetaExtension(*args, **kwargs) |