rsthtml5.py

from pelican.readers import RstReader
from docutils.writers.html5_polyglot import Writer, HTMLTranslator

from docutils import nodes
from docutils.writers import _html_base

from pelican import signals

class CustomWriter(Writer):
	def __init__(self):
		super().__init__()
		self.translator_class = CustomHTMLTranslator

class CustomHTMLTranslator(HTMLTranslator):
	def visit_abbreviation(self, node):
		attrs = {}
		if node.hasattr('explanation'):
			attrs['title'] = node['explanation']
		self.body.append(self.starttag(node, 'abbr', '', **attrs))

	def depart_abbreviation(self, node):
		self.body.append('</abbr>')

	def visit_image(self, node):
		# set an empty alt if alt is not specified
		# avoids that alt is taken from src
		node['alt'] = node.get('alt', '')
		return HTMLTranslator.visit_image(self, node)

class HTML5RstReader(RstReader):
	def __init__(self, *args, **kwargs):
		super().__init__(*args, **kwargs)
		self.writer_class = CustomWriter

def get_reader(readers):
	readers.reader_classes['rst'] = HTML5RstReader

def register():
	signals.readers_init.connect(get_reader)