Started using python markdowns metadata extension

mixins/templatemixin.py

@@ -3,6 +3,7 @@
 import os
 import codecs
 import copy
+import markdown
 
 from dateutil import parser
 
@@ -41,23 +42,42 @@ class TemplateMixin(object):
 	def read_content_file(self, path):
 		content_file = codecs.open(path, 'r', 'utf-8')
 
+		meta = self.read_content_file_metadata(content_file)
+
 		result = {}
+		try:
+			result['title'] = meta['title']
+			result['creation_time'] = parser.parse(meta['creation_time'].decode('ascii'))
+			result['edit_time'] = parser.parse(meta['edit_time'].decode('ascii'))
 
-		first_line = content_file.readline()
-		second_line = content_file.readline()
-
-		third_line = content_file.readline().strip()
-		while third_line == '':
-			third_line = content_file.readline().strip()
-
-		result['title'] = third_line
-
-		result['content'] = content_file.read().decode('utf-8')
-
-		result['creation_time'] = parser.parse(first_line)
-		result['edit_time'] = parser.parse(second_line)
+			result['content'] = content_file.read()
+		except KeyError as error:
+			raise RuntimeError("Incomplete metadata, missing %s in file: %s" % (error, path))
 
 		content_file.close()
 
-
 		return result
+
+
+	def read_content_file_metadata(self, content_file):
+		# Abuse the markdown meta data extension
+		# https://pythonhosted.org/Markdown/extensions/meta_data.html
+		# It can't be used on the full file since our content can be something else than markdown.
+
+		markdown_converter = markdown.Markdown(extensions = ['markdown.extensions.meta'])
+
+		lines = ""
+		line = content_file.readline()
+		while line.strip() != '':
+			lines += line
+			line = content_file.readline()
+		lines += "\n"
+
+		markdown_converter.convert(lines)
+
+		meta = markdown_converter.Meta
+		for key in meta.keys():
+			if len(meta[key]) == 1:
+				meta[key] = meta[key][0]
+
+		return meta