Python django.utils.html 模块，urlize() 实例源码

def html_doc(self):
        """Methods docstring, as HTML"""
        if not self.raw_docstring:
            result = ''

        elif settings.MODERNRPC_DOC_FORMAT.lower() in ('rst', 'restructred', 'restructuredtext'):
            from docutils.core import publish_parts
            result = publish_parts(self.raw_docstring, writer_name='html')['body']

        elif settings.MODERNRPC_DOC_FORMAT.lower() in ('md', 'markdown'):
            import markdown
            result = markdown.markdown(self.raw_docstring)

        else:
            result = "<p>{}</p>".format(self.raw_docstring.replace('\n\n', '</p><p>').replace('\n', ' '))

        return mark_safe(urlize(result))

def urlize_html(html):
    """
    Returns urls found in an (X)HTML text node element as urls via Django urlize filter.
    """
    try:
        from bs4 import BeautifulSoup
    except ImportError:
        if settings.DEBUG:
            raise template.TemplateSyntaxError(
                "Error in urlize_html The Python BeautifulSoup libraries aren't installed.")
        return html
    else:
        soup = BeautifulSoup(html, 'html.parser')

        text_nodes = soup.find_all(text=True)
        for text_node in text_nodes:
            urlized_text = urlize(text_node)
            text_node.replace_with(BeautifulSoup(urlized_text, 'html.parser'))

        return mark_safe(str(soup))

def urlize_target_blank(value, limit=None, autoescape=None):
    if not limit:
        limit = len(value)
    return mark_safe(urlize_impl(value, trim_url_limit=int(limit),
                                 nofollow=True, autoescape=autoescape).replace('<a', '<a target="_blank"'))

def render_activity(item):
    if not item.group:
        # not implemented
        return

    try:
        action_str = ACTIVITY_ACTION_STRINGS[item.type]
    except KeyError:
        logging.warning('Unknown activity type present: %s', item.type)
        return

    if item.type == Activity.CREATE_ISSUE:
        action_str = action_str.format(**item.data)
    elif item.type == Activity.ASSIGNED:
        if item.data['assignee'] == item.user_id:
            assignee_name = 'themselves'
        else:
            try:
                assignee = User.objects.get(id=item.data['assignee'])
            except User.DoesNotExist:
                assignee_name = 'unknown'
            else:
                assignee_name = assignee.get_display_name()
        action_str = action_str.format(user=assignee_name)

    output = ''

    if item.user:
        user = item.user
        name = user.name or user.email
        output += '<span class="avatar"><img src="%s"></span> ' % (get_gravatar_url(user.email, size=20),)
        output += '<strong>%s</strong> %s' % (escape(name), action_str)
    else:
        output += '<span class="avatar sentry"></span> '
        output += 'The system %s' % (action_str,)

    output += ' <span class="sep">&mdash;</span> <span class="time">%s</span>' % (timesince(item.datetime),)

    if item.type == Activity.NOTE:
        output += linebreaks(urlize(escape(item.data['text'])))

    return mark_safe(output)