org-element: Fix $...$ fragments followed by an apostrophe
* lisp/org-element.el (org-element-latex-fragment-parser):
* lisp/org.el (org-latex-regexps): Allow an apostrophe right after
a fragment.
* testing/lisp/test-org-element.el (test-org-element/latex-fragment-parser):
Add test.
In Text mode, and, as a consequence, in Org mode, "'" is not treated
as punctuation, but as word constituent. The apostrophe isn't caught
by "\s." regexp.
Reported-by: Joe Corneli <holtzermann17@gmail.com>
<http://permalink.gmane.org/gmane.emacs.orgmode/113464>