Better bibtex URL highlighting and matching

init.el

@@ -1379,6 +1379,17 @@ COMMAND and COMINT are like `compile'."
 
 ;; Bibtex (built in)
 (require 'bibtex)
+;; Better URL highlighting and matching
+(dolist (field '("howpublished" "url"))
+  (add-to-list 'bibtex-generate-url-list
+               `((,field . ,(rx "http" (? "s") "://" (+ (not "}"))))
+                 "%s"
+                 (,field
+                  ,(rx (? (or "\\url{" "{")) (group "http" (? "s") "://"
+                                                    (+ (not "}")))
+                       (? "}"))
+                  ,(lambda (field)
+                     (match-string 1 field))))))
 (defun my/bibtex-in-entry-p (&optional exclude-braces)
   "Return t is point is inside a BibTeX entry.
 When EXCLUDE-BRACES is non-nil, don't count the first and last brace of the