* lisp/progmodes/cperl-mode.el (cperl-font-lock-fontify-region-function):

Don't infloop when expanding region over `multiline' syntax-type that
begins a line.

Fixes: debbugs:15778

lisp/ChangeLog

+2013-11-03  Nathan Trapuzzano  <nbtrap@nbtrap.com>  (tiny change)
+
+	* progmodes/cperl-mode.el (cperl-font-lock-fontify-region-function):
+	Don't infloop when expanding region over `multiline' syntax-type that
+	begins a line (bug#15778).
+
 2013-11-04  Stefan Monnier  <monnier@iro.umontreal.ca>
 
 	* rect.el (rectangle-mark-mode): Rename from rectangle-mark.

lisp/progmodes/cperl-mode.el

@@ -8900,8 +8900,9 @@ do extra unwind via `cperl-unwind-to-safe'."
 		  (beginning-of-line)
 		  (eq (get-text-property (setq beg (point)) 'syntax-type)
 		      'multiline)))
-      (if (setq beg (cperl-beginning-of-property beg 'syntax-type))
-	  (goto-char beg)))
+      (let ((new-beg (cperl-beginning-of-property beg 'syntax-type)))
+	(setq beg (if (= new-beg beg) nil new-beg))
+	(goto-char new-beg)))
     (setq beg (point))
     (goto-char end)
     (while (and end