在自定义Python Markdown扩展的输出中禁用HTML编码

时间:2012-01-18 15:51:10

标签: python django markdown html-encode

我一直致力于创建一个python markdown扩展,当使用自定义标记时,该扩展将在我的django项目中插入一个图库。实际的扩展是有效的,但扩展返回的HTML都是编码的。这是我正在使用的扩展程序:

#!/usr/bin/env python
from django.template.loader import render_to_string
from main.models import *

import markdown

version = "0.1.0"

class GalleriaExtension(markdown.Extension):
    def __init__(self, configs):
        self.config = {
        }

        # Override defaults with user settings
        for key, value in configs:
            self.setConfig(key, value)

    def add_inline(self, md, name, klass, re):
        pattern = klass(re)
        pattern.md = md
        pattern.ext = self
        md.inlinePatterns.add(name, pattern, "<reference")

    def extendMarkdown(self, md, md_globals):
        self.add_inline(md, 'galleria', Galleria,
            r'\[\[(G|g)allery (?P<superpage_id>\w+)\]\]')

class Galleria(markdown.inlinepatterns.Pattern):
    def handleMatch(self, m):
        try:
            images = SuperPage.objects.get(id=m.group('superpage_id')).superpageimage_set.all()
        except:
            images = None
        if images:
            rendered = render_to_string('galleria.html', { 'images': images })
        else:
            rendered = '<b>There are no images for the given ID</b>'
        return rendered 

def makeExtension(configs=None) :
    return GalleriaExtension(configs=configs)

我确保render_to_string实际上返回了未编码的html。从shell开始,这是输出的一个例子:

render_to_string的输出:

>>> from django.template.loader import render_to_string
>>> images = SuperPage.objects.get(id=8).superpageimage_set.all()
>>> render_to_string('galleria.html', { 'images': images })
u'<div class=\'galleria_std\'>\n    <div class=\'gallery\' >\n      <div id=\'stage_gallery\' >\n'

以下是编码的markdown扩展名的输出:

>>>markdown.markdown('test [[gallery 8]] test', ['galleria'])
u'<p>test &lt;div class=\'galleria_std\'&gt;\n    &lt;div class=\'gallery\' &gt;\n'

使用降价扩展程序时,如何使rendered返回HTML标记而不是编码标记?此外,我将不胜感激任何关于编码的指针(语法,布局等)。我很感激。

1 个答案:

答案 0 :(得分:1)

我解决了这个问题:

import markdown
from markdown import Extension
from markdown.inlinepatterns import Pattern
from django.template.loader import render_to_string
from gallery.models import Gallery

class InlineGalleryExtension(Extension):
    def extendMarkdown(self, markdownInstance, md_globals):
        GALLERY_RE = r'\[\[gallery (?P<id>[0-9]+)\]\]'
        inlineGalleryPattern = InlineGallery(GALLERY_RE, markdownInstance)

        markdownInstance.inlinePatterns.add('gallery', inlineGalleryPattern, "<not_strong")

class InlineGallery(Pattern):
    def handleMatch(self, m):
        try:
            gallery = Gallery.objects.get(id=m.group('id').strip())
        except Gallery.DoesNotExist:
            gallery = None

        if gallery:
            element = render_to_string('gallery/inline_gallery.html', {
                'gallery': gallery
            })
        else:
            element = ''

        return self.markdown.htmlStash.store(self.unescape(element))

关键解决方案在最后一行。