'Build a set of data for Twitter\'s Summary Cards:
https://dev.twitter.com/cards/types/summary
https://dev.twitter.com/cards/markup'

def _build_twitter_card_data(self, link_title, meta_description):

    sr_fragment = ((u'    \u2022    /r/' + c.site.name) if (not c.default_sr) else get_domain())
    max_link_title_length = (70 - len(sr_fragment))
    return {'site': 'reddit', 'card': 'summary', 'title': (_truncate(link_title, max_link_title_length) + sr_fragment)}
