Insert references before local variables

Fixes #216

markdown-mode.el

@@ -4367,6 +4367,14 @@ be used to populate the title attribute when converted to XHTML."
       (immediately (markdown-end-of-text-block))
       (subtree     (markdown-end-of-subtree))
       (header      (markdown-end-of-defun)))
+    ;; Skip backwards over local variables.  This logic is similar to the one
+    ;; used in ‘hack-local-variables’.
+    (when (and enable-local-variables (eobp))
+      (search-backward "\n\f" (max (- (point) 3000) (point-min)) :move)
+      (when (let ((case-fold-search t))
+              (search-forward "Local Variables:" nil :move))
+        (beginning-of-line 0)
+        (when (eq (char-before) ?\n) (backward-char))))
     (unless (or (markdown-cur-line-blank-p)
                 (thing-at-point-looking-at markdown-regex-reference-definition))
       (insert "\n"))

tests/markdown-test.el

@@ -1129,6 +1129,26 @@ Test point position upon removal and insertion."
       (should (= (point) 38))
       (should (looking-back "https://www.gnu.org/\n\\[2\\]: " nil)))))
 
+(ert-deftest test-markdown-insertion/reference-link-before-file-locals ()
+  "Test inserting a reference link before file-local variables."
+  (markdown-test-string "
+
+<!-- Local Variables: -->
+<!-- mode: markdown -->
+<!-- End: -->
+"
+    (markdown-insert-reference-link "link" "" "http://jblevins.org/")
+    (should (equal (buffer-substring-no-properties 1 (point-max))
+                   "[link][]
+
+\[link]: http://jblevins.org/
+
+<!-- Local Variables: -->
+<!-- mode: markdown -->
+<!-- End: -->
+"))
+    (should (equal (point) 9))))
+
 (ert-deftest test-markdown-insertion/inline-to-reference-link ()
   "Inline link to reference link conversion with tab completion."
   (markdown-test-string "[text](http://jblevins.org/ \"title\")"