ext.py 文件源码

def test_comment_extract(self):
        from jinja2.ext import babel_extract
        source = BytesIO('''
        {# trans first #}
        {{ gettext('Hello World') }}
        {% trans %}Hello World{% endtrans %}{# trans second #}
        {#: third #}
        {% trans %}{{ users }} user{% pluralize %}{{ users }} users{% endtrans %}
        '''.encode('utf-8')) # make python 3 happy
        assert list(babel_extract(source, ('gettext', 'ngettext', '_'), ['trans', ':'], {})) == [
            (3, 'gettext', u'Hello World', ['first']),
            (4, 'gettext', u'Hello World', ['second']),
            (6, 'ngettext', (u'%(users)s user', u'%(users)s users', None), ['third'])
        ]