def run(self, reader: TextReader, document: Element) -> bool:
brackets = list(n for n in document.children if isinstance(n, bracket))
openers = list(d for d in brackets if d['can_open'])
if openers == []:
return False
matched = reader.consume(self.pattern)
rubytext = unescape(matched.group(0)[2:-1])
ruby = addnodes.ruby(rubytext=rubytext)
document += ruby
# transplant ruby base text to ruby node
transplant_nodes(document, ruby, start=openers[-1], end=ruby)
document.remove(openers[-1])
return True
def process_link_or_image(self, reader: TextReader,
document: Element) -> bool:
brackets = list(n for n in document.children
if isinstance(n, addnodes.bracket))
openers = list(d for d in brackets if d['can_open'])
if len(openers) == 0:
return True
opener = openers.pop()
closer = brackets.pop()
if not opener['active']:
opener.replace_self(Text(opener['marker']))
closer.replace_self(Text(closer['marker']))
return True
try:
if reader.remain.startswith('('):
# link destination + link title (optional)
# [...](<.+> ".+")
# [...](.+ ".+")
destination, title = self.parse_link_destination(
reader, document)
elif reader.remain.startswith('['):
# link label
# [...][.+]
# [...][]
destination, title = self.parse_link_label(reader,
document,
opener=opener,
closer=closer)
else:
destination = None
title = None
except (TypeError, ValueError):
destination = None
title = None
if destination is None:
# shortcut reference link
# [...]
refid = reader[opener['position']:closer['position']]
target = self.lookup_target(document, refid)
if target:
destination = target.get('refuri')
title = target.get('title')
else:
# deactivate brackets because no trailing link destination or link-label
opener.replace_self(Text(opener['marker']))
closer.replace_self(Text(closer['marker']))
raise
elif destination == LABEL_NOT_MATCHED:
opener.replace_self(Text(opener['marker']))
closer.replace_self(Text(closer['marker']))
raise
node: Element = None
if opener['marker'] == '![':
from pycmark.transforms import EmphasisConverter # lazy loading
para = transplant_nodes(document,
nodes.paragraph(),
start=opener,
end=closer)
EmphasisConverter(para).apply()
node = nodes.image('', uri=destination, alt=para.astext())
if title:
node['title'] = title
else:
node = nodes.reference('', refuri=destination)
transplant_nodes(document, node, start=opener, end=closer)
if title:
node['reftitle'] = title
# deactivate all left brackets before the link
for n in openers:
if n['marker'] == '[':
n['active'] = False
document += node
document.remove(opener)
document.remove(closer)
return True
