% macro lang_options(langs, selected)
    % if selected not in langs
        <option value="{{ selected }}">{{
            locale.LANGUAGE_NAMES.get(selected, selected)
        }}</option>
    % endif
    % for code, name in langs.items()
        <option value="{{ code }}"
                {{ 'selected' if code == selected else '' }}
                {{ 'disabled' if not code[0].isalpha() else '' }}
            >{{ name }}</option>
    % endfor
% endmacro