78 lines
2.4 KiB
Python
78 lines
2.4 KiB
Python
"""
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POST-PROCESSORS
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=============================================================================
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Markdown also allows post-processors, which are similar to preprocessors in
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that they need to implement a "run" method. However, they are run after core
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processing.
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"""
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import markdown
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class Processor:
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def __init__(self, markdown_instance=None):
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if markdown_instance:
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self.markdown = markdown_instance
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class Postprocessor(Processor):
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"""
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Postprocessors are run after the ElementTree it converted back into text.
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Each Postprocessor implements a "run" method that takes a pointer to a
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text string, modifies it as necessary and returns a text string.
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Postprocessors must extend markdown.Postprocessor.
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"""
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def run(self, text):
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"""
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Subclasses of Postprocessor should implement a `run` method, which
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takes the html document as a single text string and returns a
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(possibly modified) string.
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"""
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pass
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class RawHtmlPostprocessor(Postprocessor):
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""" Restore raw html to the document. """
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def run(self, text):
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""" Iterate over html stash and restore "safe" html. """
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for i in range(self.markdown.htmlStash.html_counter):
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html, safe = self.markdown.htmlStash.rawHtmlBlocks[i]
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if self.markdown.safeMode and not safe:
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if str(self.markdown.safeMode).lower() == 'escape':
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html = self.escape(html)
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elif str(self.markdown.safeMode).lower() == 'remove':
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html = ''
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else:
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html = markdown.HTML_REMOVED_TEXT
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if safe or not self.markdown.safeMode:
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text = text.replace("<p>%s</p>" %
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(markdown.preprocessors.HTML_PLACEHOLDER % i),
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html + "\n")
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text = text.replace(markdown.preprocessors.HTML_PLACEHOLDER % i,
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html)
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return text
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def escape(self, html):
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""" Basic html escaping """
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html = html.replace('&', '&')
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html = html.replace('<', '<')
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html = html.replace('>', '>')
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return html.replace('"', '"')
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class AndSubstitutePostprocessor(Postprocessor):
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""" Restore valid entities """
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def __init__(self):
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pass
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def run(self, text):
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text = text.replace(markdown.AMP_SUBSTITUTE, "&")
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return text
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