from docutils import nodes

from os.path import sep

from matplotlib import rcParamsDefault

def rcparam_role(name, rawtext, text, lineno, inliner, options={}, content=[]):

rendered = nodes.Text(f'rcParams["{text}"]')

source = inliner.document.attributes['source'].replace(sep, '/')

rel_source = source.split('/doc/', 1)[1]

levels = rel_source.count('/')

refuri = ('../' * levels +

'tutorials/introductory/customizing.html' +

f"?highlight={text}#a-sample-matplotlibrc-file")

ref = nodes.reference(rawtext, rendered, refuri=refuri)

node_list = [nodes.literal('', '', ref)]

if text in rcParamsDefault:

node_list.extend([

nodes.Text(' (default: '),

nodes.literal('', repr(rcParamsDefault[text])),

nodes.Text(')'),

])

return node_list, []

def setup(app):

app.add_role("rc", rcparam_role)

return {"parallel_read_safe": True, "parallel_write_safe": True}