from markupsafe import Markup
#from jinja2 import Markup

def marginews(self, feed, heading, link, readMore, content_file, addLinks=None):

    template = f"""
    <div class="headlineRightColumn">
        <a href="<% {feed} %>">
        <img src="/bilder/rss.png" align="right" alt="RSS" />
        </a>
        <a href="{link}">{heading}</a>
    </div>
    <div class="boxRightColumn boxRightColumnStartseite">
    """

    if isinstance(addLinks, list):
        addLinks_str = '<div class="weiternews">'
        for text, url in addLinks:
            addLinks_str += f'<a href="{url}">{text}</a> &bull;'
        addLinks_str += '</div>'
    elif addLinks:
        addLinks_str = ( '<!-- Error: addLinks is a ' + type(addLinks).__name__
                       + ', needs to be list! -->' )
    else:
        addLinks_str = '<!-- No added links -->'

    if readMore:
        readMore = f"""
            <div class="weiternews">
                <a href="http://ub.blog.uni-heidelberg.de">
                {self.i18n(de="Weiteres im UBlog", en="Earlier UBlog posts")}
                &hellip;</a>
            </div>
        """
    else:
        readMore = ''
    readMore += '</div>'

    try:
        content_file = "/web/news/" + content_file + '.news'
        with open(content_file, 'r') as content:
            out_string = content.read()
    except OSError as e:
        return str(e)
    else:
        return Markup(template + out_string + addLinks_str + readMore)