from django.core.urlresolvers import reverse import markdown from markdown.inlinepatterns import Pattern from markdown.util import etree import boards __author__ = 'neko259' AUTOLINK_PATTERN = r'(https?://\S+)' QUOTE_PATTERN = r'^(?)(>[^>].+)$' REFLINK_PATTERN = r'((>>)(\d+))' SPOILER_PATTERN = r'%%(.+)%%' COMMENT_PATTERN = r'^(//(.+))' STRIKETHROUGH_PATTERN = r'~(.+)~' class TextFormatter(): """ An interface for formatter that can be used in the text format panel """ name = '' # Left and right tags for the button preview preview_left = '' preview_right = '' # Left and right characters for the textarea input format_left = '' format_right = '' class AutolinkPattern(Pattern): def handleMatch(self, m): link_element = etree.Element('a') href = m.group(2) link_element.set('href', href) link_element.text = href return link_element class QuotePattern(Pattern, TextFormatter): name = '' preview_left = '> ' preview_right = '' format_left = '>' def handleMatch(self, m): quote_element = etree.Element('span') quote_element.set('class', 'quote') quote_element.text = m.group(2) return quote_element class ReflinkPattern(Pattern): def handleMatch(self, m): post_id = m.group(4) posts = boards.models.Post.objects.filter(id=post_id) if posts.count() > 0: ref_element = etree.Element('a') post = posts[0] if not post.is_opening(): link = reverse(boards.views.thread, kwargs={ 'post_id': post.thread_new.get_opening_post().id})\ + '#' + post_id else: link = reverse(boards.views.thread, kwargs={'post_id': post_id}) ref_element.set('href', link) ref_element.text = m.group(2) return ref_element class SpoilerPattern(Pattern, TextFormatter): name = 's' preview_left = '' preview_right = '' format_left = '%%' format_right = '%%' def handleMatch(self, m): quote_element = etree.Element('span') quote_element.set('class', 'spoiler') quote_element.text = m.group(2) return quote_element class CommentPattern(Pattern, TextFormatter): name = '' preview_left = '// ' preview_right = '' format_left = '//' def handleMatch(self, m): quote_element = etree.Element('span') quote_element.set('class', 'comment') quote_element.text = '//' + m.group(3) return quote_element class StrikeThroughPattern(Pattern, TextFormatter): name = 's' preview_left = '' preview_right = '' format_left = '~' format_right = '~' def handleMatch(self, m): quote_element = etree.Element('span') quote_element.set('class', 'strikethrough') quote_element.text = m.group(2) return quote_element class ItalicPattern(TextFormatter): name = 'i' preview_left = '' preview_right = '' format_left = '_' format_right = '_' class BoldPattern(TextFormatter): name = 'b' preview_left = '' preview_right = '' format_left = '__' format_right = '__' class CodePattern(TextFormatter): name = 'code' preview_left = '' preview_right = '' format_left = ' ' class NeboardMarkdown(markdown.Extension): def extendMarkdown(self, md, md_globals): self._add_neboard_patterns(md) self._delete_patterns(md) def _delete_patterns(self, md): del md.parser.blockprocessors['quote'] del md.inlinePatterns['image_link'] del md.inlinePatterns['image_reference'] def _add_neboard_patterns(self, md): autolink = AutolinkPattern(AUTOLINK_PATTERN, md) quote = QuotePattern(QUOTE_PATTERN, md) reflink = ReflinkPattern(REFLINK_PATTERN, md) spoiler = SpoilerPattern(SPOILER_PATTERN, md) comment = CommentPattern(COMMENT_PATTERN, md) strikethrough = StrikeThroughPattern(STRIKETHROUGH_PATTERN, md) md.inlinePatterns[u'autolink_ext'] = autolink md.inlinePatterns[u'spoiler'] = spoiler md.inlinePatterns[u'strikethrough'] = strikethrough md.inlinePatterns[u'comment'] = comment md.inlinePatterns[u'reflink'] = reflink md.inlinePatterns[u'quote'] = quote def make_extension(configs=None): return NeboardMarkdown(configs=configs) neboard_extension = make_extension() def markdown_extended(markup): return markdown.markdown(markup, [neboard_extension], safe_mode=True) formatters = [ QuotePattern, SpoilerPattern, ItalicPattern, BoldPattern, CommentPattern, StrikeThroughPattern, CodePattern, ]