* lisp/ol.el (org-link-make-regexps): Allow URLs with up to two
levels of nested brackets.
* lisp/org.el (org-link-plain-re): Update docstring.
* testing/lisp/test-ol.el: Add tests for the plain link regular
expression.
(org-link-plain-re): Update docstring. Now,
Now, URLs like [1] can be matched. The new regexp is based on [2].
The docstring of `org-link-plain-re' explicitly mentions that the
regexp must contain groups for the link type and the path.
[1] https://doi.org/10.1016/0160-791x(79)90023-x
[2] https://daringfireball.net/2010/07/improved_regex_for_matching_urls
* lisp/ol.el (org-link-make-regexps): Update regexp to forbid any
un-escaped square bracket in the URI.
(org-link-escape):
(org-link-unescape):
* testing/lisp/test-ol.el (test-ol/escape):
(test-ol/unescape):
(test-ol/store-link):
* testing/lisp/test-org.el (test-org/custom-id):
(test-org/fuzzy-links):
* testing/lisp/test-ox.el (test-org-export/resolve-fuzzy-link): Adapt
to new syntax.
* doc/org-manual.org (Link Format): Update documentation.
The new syntax allowed un-escaped opening square brackets in the URI
part of bracket links. Unfortunately, it led to bug as described here:
<https://lists.gnu.org/archive/html/emacs-orgmode/2019-12/msg00312.html>
Now, we require to escape every square bracket in the URI.
Ihor Radchenko
Nicolas Goaziou