rougail/docs/ext/xref.py
2025-11-22 08:04:51 +01:00

67 lines
1.7 KiB
Python

"""adds link url in the global scope
sample use:
:xref:`Tiramisu <tiramisu>`
You must declare in the `conf.py`
::
#---- xref links ----
#import the xref.py extension
xref_links = {"link_name" : ("user text", "url")}
#link_name = "Sphinx External Links"
#user_text = "modified External Links Extension"
#url = "http://www.sphinx-doc.org/en/stable/ext/extlinks.html"
#enables syntax like:
" :xref:`tiramisu` "
links = {
'tiramisu': ('Tiramisu', 'https://tiramisu.readthedocs.io/en/latest/'),
'tiramisu library': ('Tiramisu library homepage', 'https://forge.cloud.silique.fr/stove/tiramisu'),
}
xref_links.update(links)
"""
from docutils import nodes
from sphinx.util import caption_ref_re
def xref( typ, rawtext, text, lineno, inliner, options={}, content=[] ):
title = target = text
titleistarget = True
# look if explicit title and target are given with `foo <bar>` syntax
brace = text.find('<')
if brace != -1:
titleistarget = False
m = caption_ref_re.match(text)
if m:
target = m.group(2)
title = m.group(1)
else:
# fallback: everything after '<' is the target
target = text[brace+1:]
title = text[:brace]
link = xref.links[target]
if brace != -1:
pnode = nodes.reference(target, title, refuri=link[1])
else:
pnode = nodes.reference(target, link[0], refuri=link[1])
return [pnode], []
def get_refs(app):
xref.links = app.config.xref_links
def setup(app):
app.add_config_value('xref_links', {}, True)
app.add_role('xref', xref)
app.connect("builder-inited", get_refs)