def check_context(view):
     abbr        =       zencoding.actions.basic.find_abbreviation(editor)
     if abbr:
         try:            result = expand_abbr(abbr)
         except          ZenInvalidAbbreviation: return None
         if result:
             return abbr, result

    def run(self, edit, doctype=None):
        view     = self.view
        syntax   = zen_settings.get( 'default_html_syntax',
                                     'Packages/HTML/HTML.tmlanguage' )
        view.set_syntax_file(syntax)

        view.run_command( 'insert_snippet',
                          {'contents': expand_abbr('html:%s' % doctype)} )

    def run_command(self, view, cmd_input):
        try:
            ex = expand_abbr(cmd_input, super_profile="no_check_valid")
            p = editor.get_profile_name() + ".no_check_valid"
            if not ex.strip():
                raise ZenInvalidAbbreviation("Empty expansion %r" % ex)
        except Exception:
            return False

        view.run_command("run_zen_action", dict(action="wrap_with_abbreviation", abbr=cmd_input, profile_name=p))

    def run_command(self, view, cmd_input):
        try:
            ex = expand_abbr(cmd_input, super_profile='no_check_valid')
            p = editor.get_profile_name() + '.no_check_valid'
            if not ex: raise ZenInvalidAbbreviation('Empty expansion %r' % ex)
        except ZenInvalidAbbreviation:
            return False

        view.run_command (
            'run_zen_action',
            dict(action="wrap_with_abbreviation", abbr=cmd_input, profile_name=p))