Source code for invenio_previewer.extensions.mistune

# -*- coding: utf-8 -*-
#
# This file is part of Invenio.
# Copyright (C) 2015-2019 CERN.
#
# Invenio is free software; you can redistribute it and/or modify it
# under the terms of the MIT License; see LICENSE file for more details.

"""Markdown rendering using mistune library."""

from __future__ import absolute_import, unicode_literals

import bleach
import mistune
from flask import render_template

from ..utils import detect_encoding

previewable_extensions = ['md']



[docs]def render(file):
    """Render HTML from Markdown file content."""
    with file.open() as fp:
        encoding = detect_encoding(fp, default='utf-8')
        result = mistune.markdown(fp.read().decode(encoding))
        return result




[docs]def can_preview(file):
    """Determine if file can be previewed."""
    return file.is_local() and file.has_extensions('.md')




[docs]def preview(file):
    """Render Markdown."""
    return render_template(
        "invenio_previewer/mistune.html",
        file=file,
        content=render(file)
    )