Added support for adding addional HTML attributes to the "linkify" template filter

sitescripts/cms/converters.py

 # coding: utf-8
 
 # This file is part of the Adblock Plus web scripts,
 # Copyright (C) 2006-2013 Eyeo GmbH
 #
 # Adblock Plus is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 3 as
 # published by the Free Software Foundation.
 #
 # Adblock Plus is distributed in the hope that it will be useful,
@@ skipping 221 matching lines @@
     template = self._env.from_string(source)
     return template.render(self._params)
 
   def translate(self, name, page=None, links=[]):
     if page == None:
       localedata = self._params["localedata"]
     else:
       localedata = self._params["source"].read_locale(self._params["locale"], page)
     return jinja2.Markup(self.localize_string(name, localedata, html_escapes, links=links))
 
-  def linkify(self, page, locale=None):
+  def linkify(self, page, locale=None, **attrs):
     if locale == None:
       locale = self._params["locale"]
 
     locale, url = self._params["source"].resolve_link(page, locale)
-    return jinja2.Markup('<a href="%s" hreflang="%s">' % (
-      jinja2.Markup.escape(url),
-      jinja2.Markup.escape(locale)
+    return jinja2.Markup('<a%s>' % ''.join(
+      ' %s="%s"' % (name, jinja2.escape(value)) for name, value in [
+        ('href', url),
+        ('hreflang', locale)
+      ] + attrs.items()
     ))
 
   def toclist(self, content):
     flat = []
     for match in re.finditer(r'<h(\d)\s[^<>]*\bid="([^<>"]+)"[^<>]*>(.*?)</h\1>', content, re.S):
       flat.append({
         "level": int(match.group(1)),
         "anchor": jinja2.Markup(match.group(2)).unescape(),
         "title": jinja2.Markup(match.group(3)).unescape(),
         "subitems": [],
       })
 
     structured = []
     stack = [{"level": 0, "subitems": structured}]
     for item in flat:
       while stack[-1]["level"] >= item["level"]:
         stack.pop()
       stack[-1]["subitems"].append(item)
       stack.append(item)
     return structured
 
 converters = {
   "raw": RawConverter,
   "md": MarkdownConverter,
   "tmpl": TemplateConverter,
 }