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custom version of simple_footnotes

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rra 7 years ago
parent
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d91a9e910b
  1. 26
      complex_footnotes/README.md
  2. 1
      complex_footnotes/__init__.py
  3. 108
      complex_footnotes/simple_footnotes.py
  4. 33
      complex_footnotes/test_simple_footnotes.py

26
complex_footnotes/README.md

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Simple Footnotes
================
A Pelican plugin to add footnotes to blog posts.
When writing a post or page, add a footnote like this:
Here's my written text[ref]and here is a footnote[/ref].
This will appear as, roughly:
Here's my written text<sup>1</sup>
1. and here is a footnote ↩
Inspired by Andrew Nacin's [Simple Footnotes WordPress plugin](http://wordpress.org/plugins/simple-footnotes/).
Requirements
============
Needs html5lib, so you'll want to `pip install html5lib` before running.
Should work with any content format (ReST, Markdown, whatever), because
it looks for the `[ref]` and `[/ref]` once the conversion to HTML has happened.
Stuart Langridge, http://www.kryogenix.org/, February 2014.

1
complex_footnotes/__init__.py

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from .simple_footnotes import *

108
complex_footnotes/simple_footnotes.py

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#!/usr/bin/env python
# -*- coding: utf-8 -*- #
from pelican import signals
import html5lib
import six
RAW_FOOTNOTE_CONTAINERS = ["code"]
def getText(node, recursive=False):
"""Get all the text associated with this node.
With recursive == True, all text from child nodes is retrieved."""
L = [u'']
for n in node.childNodes:
if n.nodeType in (node.TEXT_NODE, node.CDATA_SECTION_NODE):
L.append(n.data)
else:
if not recursive:
return None
L.append(getText(n))
return u''.join(L)
def sequence_gen(genlist):
for gen in genlist:
for elem in gen:
yield elem
def parse_for_footnotes(article_or_page_generator):
all_content = [
getattr(article_or_page_generator, attr, None) \
for attr in [u'articles', u'drafts', u'pages']]
all_content = [x for x in all_content if x is not None]
for article in sequence_gen(all_content):
if u"[ref]" in article._content and u"[/ref]" in article._content:
content = article._content.replace(u"[ref]", u"<x-simple-footnote>").replace(u"[/ref]",
u"</x-simple-footnote>")
parser = html5lib.HTMLParser(tree=html5lib.getTreeBuilder(u"dom"))
dom = parser.parse(content)
endnotes = []
count = 0
for footnote in dom.getElementsByTagName(u"x-simple-footnote"):
pn = footnote
leavealone = False
while pn:
if pn.nodeName in RAW_FOOTNOTE_CONTAINERS:
leavealone = True
break
pn = pn.parentNode
if leavealone:
continue
count += 1
fnid = u"sf-%s-%s" % (article.slug, count)
fnbackid = u"%s-back" % (fnid,)
endnotes.append((footnote, fnid, fnbackid))
number = dom.createElement(u"sup")
number.setAttribute(u"id", fnbackid)
numbera = dom.createElement(u"a")
numbera.setAttribute(u"href", u"#%s" % fnid)
numbera.setAttribute(u"class", u"simple-footnote")
numbera.appendChild(dom.createTextNode(six.text_type(count)))
txt = getText(footnote, recursive=True).replace(u"\n", u" ")
footnote_container = dom.createElement(u"span")
footnote_container.setAttribute(u"class", u"simple-footnote-container")
footnote_content = dom.createElement(u"span")
footnote_content.appendChild(footnote.firstChild)
footnote_content.setAttribute(u"class", u"simple-footnote-content")
footnote_container.appendChild(footnote_content)
print(footnote.firstChild)
numbera.setAttribute(u"title", txt)
number.appendChild(footnote_container)
number.appendChild(numbera)
footnote.parentNode.insertBefore(number, footnote)
footnote.parentNode.insertBefore(footnote_container, footnote)
if endnotes:
ol = dom.createElement(u"ol")
ol.setAttribute(u"class", u"simple-footnotes")
for e, fnid, fnbackid in endnotes:
# li = dom.createElement(u"li")
# li.setAttribute(u"id", fnid)
# while e.firstChild:
# li.appendChild(e.firstChild)
# backlink = dom.createElement(u"a")
# backlink.setAttribute(u"href", u"#%s" % fnbackid)
# backlink.setAttribute(u"class", u"simple-footnote-back")
# backlink.appendChild(dom.createTextNode(u'\u21a9'))
# li.appendChild(dom.createTextNode(u" "))
# li.appendChild(backlink)
# ol.appendChild(li)
e.parentNode.removeChild(e)
dom.getElementsByTagName(u"body")[0].appendChild(ol)
s = html5lib.serializer.HTMLSerializer(omit_optional_tags=False, quote_attr_values='legacy')
output_generator = s.serialize(
html5lib.treewalkers.getTreeWalker(u"dom")(dom.getElementsByTagName(u"body")[0]))
article._content = u"".join(list(output_generator)).replace(
u"<x-simple-footnote>", u"[ref]").replace(u"</x-simple-footnote>", u"[/ref]").replace(
u"<body>", u"").replace(u"</body>", u"")
def register():
signals.article_generator_finalized.connect(parse_for_footnotes)
signals.page_generator_finalized.connect(parse_for_footnotes)

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complex_footnotes/test_simple_footnotes.py

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import unittest
from simple_footnotes import parse_for_footnotes
class PseudoArticleGenerator(object):
articles = []
class PseudoArticle(object):
_content = ""
slug = "article"
class TestFootnotes(unittest.TestCase):
def _expect(self, input, expected_output):
ag = PseudoArticleGenerator()
art = PseudoArticle()
art._content = input
ag.articles = [art]
parse_for_footnotes(ag)
self.assertEqual(art._content, expected_output)
def test_simple(self):
self._expect("words[ref]footnote[/ref]end",
('words<sup id="sf-article-1-back"><a title="footnote" '
'href="#sf-article-1" class="simple-footnote">1</a></sup>end'
'<ol class="simple-footnotes">'
u'<li id="sf-article-1">footnote <a href="#sf-article-1-back" class="simple-footnote-back">\u21a9</a></li>'
'</ol>'))
def test_no_footnote_inside_code(self):
self._expect("words<code>this is code[ref]footnote[/ref] end code </code> end",
"words<code>this is code[ref]footnote[/ref] end code </code> end")
if __name__ == '__main__':
unittest.main()
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