from pelican import signals
import re
import html5lib
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 = ['']
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 ''.join(L)
def parse_for_footnotes(article_generator):
for article in article_generator.articles:
if "[ref]" in article._content and "[/ref]" in article._content:
content = article._content.replace("[ref]", "").replace("[/ref]", "")
parser = html5lib.HTMLParser(tree=html5lib.getTreeBuilder("dom"))
dom = parser.parse(content)
endnotes = []
count = 0
for footnote in dom.getElementsByTagName("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 = "sf-%s-%s" % (article.slug, count)
fnbackid = "%s-back" % (fnid,)
endnotes.append((footnote, fnid, fnbackid))
number = dom.createElement("sup")
number.setAttribute("id", fnbackid)
numbera = dom.createElement("a")
numbera.setAttribute("href", "#%s" % fnid)
numbera.setAttribute("class", "simple-footnote")
numbera.appendChild(dom.createTextNode(str(count)))
txt = getText(footnote, recursive=True).replace("\n", " ")
numbera.setAttribute("title", txt)
number.appendChild(numbera)
footnote.parentNode.insertBefore(number, footnote)
if endnotes:
ol = dom.createElement("ol")
ol.setAttribute("class", "simple-footnotes")
for e, fnid, fnbackid in endnotes:
li = dom.createElement("li")
li.setAttribute("id", fnid)
while e.firstChild:
li.appendChild(e.firstChild)
backlink = dom.createElement("a")
backlink.setAttribute("href", "#%s" % fnbackid)
backlink.setAttribute("class", "simple-footnote-back")
backlink.appendChild(dom.createTextNode(u'\u21a9'))
li.appendChild(dom.createTextNode(" "))
li.appendChild(backlink)
ol.appendChild(li)
e.parentNode.removeChild(e)
dom.getElementsByTagName("body")[0].appendChild(ol)
s = html5lib.serializer.htmlserializer.HTMLSerializer(omit_optional_tags=False, quote_attr_values=True)
output_generator = s.serialize(html5lib.treewalkers.getTreeWalker("dom")(dom.getElementsByTagName("body")[0]))
article._content = "".join(list(output_generator)).replace(
"", "[ref]").replace("", "[/ref]").replace(
"", "").replace("", "")
if False:
count = 0
endnotes = []
for f in footnotes:
count += 1
fnstr = '' % (
article.slug, count, article.slug, count, count)
endstr = '%s ↑' % (
article.slug, count, f[len("[ref]"):-len("[/ref]")], article.slug, count)
content = content.replace(f, fnstr)
endnotes.append(endstr)
content += 'Footnotes