Fix #34

Automatically unescape URIs whose scheme is "secretary".

secretary.py

@@ -397,8 +397,9 @@ class Renderer(object):
 
     def _unescape_entities(self, xml_text):
         """
-        Unescape '&', '<', '"' and '>' within jinja instructions.
-        The regexs rules used here are compiled in _compile_escape_expressions.
+        Unescape links and '&', '<', '"' and '>' within jinja
+        instructions. The regexs rules used here are compiled in
+        _compile_escape_expressions.
         """
         for regexp, replacement in self.escape_map.items():
             while True:
@@ -406,6 +407,23 @@ class Renderer(object):
                 if not substitutions:
                     break
 
+        return self._unescape_links(xml_text)
+
+    def _unescape_links(self, xml_text):
+        """Fix Libreoffice auto escaping of xlink:href attribute values.
+        This unescaping is only done on 'secretary' scheme URLs."""
+        import urllib
+        robj = re.compile(r'(?is)(xlink:href=\")secretary:(.*?)(\")')
+
+        def replacement(match):
+            return ''.join([match.group(1), urllib.unquote(match.group(2)),
+                            match.group(3)])
+
+        while True:
+            xml_text, rep = robj.subn(replacement, xml_text)
+            if not rep:
+                break
+
         return xml_text
 
     @staticmethod