python类Renderer()的实例源码

def article_detail_handler(request, article_id):
    account = request.META["user_info"]
    result = dict()

    renderer = mistune.Renderer(hard_wrap=True, parse_inline_html=True)
    markdown = mistune.Markdown(renderer=renderer)

    article = BlogArticle.query_article_by_id(article_id)
    article["content"] = markdown(article["content"])
    article["comment_list"] = BlogComment.query_comment_list(article_id, account.id if account else 0)
    result["article"] = article

    if account:
        article["meta_info"]["liked"] = 1 if BlogLike.query_like_blog(account.id, article_id) else 0
        result["user_info"] = UserInfo.query_format_info_by_user_id(request.META["user_info"].id)

    # ?????? ????????????????????
    author_id = article["user_info"]["id"]
    if not account or author_id != account.id:
        BlogArticleMeta.change_meta_record(article_id, author_id, ["hit"])
        # ????
        BlogArticle.query_article_by_id(article_id, False)

    return render(request, "article/detail.html", result)

def edit_article_handler(request, article_id):
    """
    ???? ????
    """
    result = base_result()
    user_id = request.META["user_info"].id

    if article_id != "0":
        result["data"] = BlogArticle.query_article_by_id(article_id)

        renderer = mistune.Renderer(hard_wrap=True, parse_inline_html=True)
        markdown = mistune.Markdown(renderer=renderer)

        result["mark_down"] = markdown(result["data"]["content"])
    else:
        result["mark_down"] = None
        del result["data"]

    result["kind_list"] = BlogKind.query_user_kind(1)
    result["user_info"] = UserInfo.query_format_info_by_user_id(user_id)

    return render(request, "manage/edit.html", result)

def markdown_engin(ori_str=""):
    renderer = mistune.Renderer(hard_wrap=True, parse_inline_html=True)
    markdown = mistune.Markdown(renderer=renderer)
    return markdown(ori_str)

def get_markdown_renderer( url_transform ):
    ''' This function returns a markdown renderer which transforms 
        URLs according to the relative paradigm of mkaestatic.
    '''

    class MyRenderer( mistune.Renderer ):
        def link(self, link, title, text):
            link = url_transform(link)
            return super(MyRenderer, self).link(link, title, text)

        def image(self, src, title, alt_text):
            src = url_transform(src)
            return super(MyRenderer, self).image(src, title, alt_text)

    return mistune.Markdown(renderer=MyRenderer(escape=True, use_xhtml=True))

def __init__(self, renderer=None, inline=None, block=None, **kwargs):
        if not renderer:
            renderer = Renderer(**kwargs)
        else:
            kwargs.update(renderer.options)

        super(Markdown, self).__init__(
            renderer=renderer, inline=inline, block=block)