* lisp/progmodes/perl-mode.el (perl-syntax-propertize-function): Handle $'

used as a variable.

Fixes: debbugs:17174

lisp/ChangeLog

+2014-04-03  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+	* progmodes/perl-mode.el (perl-syntax-propertize-function): Handle $'
+	used as a variable (bug#17174).
+
 2014-04-02  Stefan Monnier  <monnier@iro.umontreal.ca>
 
 	* progmodes/perl-mode.el (perl-indent-new-calculate):

lisp/progmodes/perl-mode.el

@@ -250,7 +250,11 @@
       ;; Catch ${ so that ${var} doesn't screw up indentation.
       ;; This also catches $' to handle 'foo$', although it should really
       ;; check that it occurs inside a '..' string.
-      ("\\(\\$\\)[{']" (1 ". p"))
+      ("\\(\\$\\)[{']" (1 (unless (and (eq ?\' (char-after (match-end 1)))
+                                       (save-excursion
+                                         (not (nth 3 (syntax-ppss
+                                                      (match-beginning 0))))))
+                            (string-to-syntax ". p"))))
       ;; Handle funny names like $DB'stop.
       ("\\$ ?{?^?[_[:alpha:]][_[:alnum:]]*\\('\\)[_[:alpha:]]" (1 "_"))
       ;; format statements

src/ChangeLog

@@ -4231,7 +4231,7 @@
 	* frame.c (delete_frame): Block/unblock input to overcome race
 	condition (Bug#15475).
 
-2013-09-29  Andreas Politz  <politza@hochschule-trier.de>  (tiny change)
+2013-09-29  Andreas Politz  <politza@hochschule-trier.de>
 
 	* frame.c (delete_frame): Record selected frame only after
 	calling Qdelete_frame_functions (Bug#15477).

test/indent/perl.perl

@@ -16,5 +16,9 @@
 bar
 EOF2
 
+print $'; # This should not start a string!
+
+print "hello" for /./;
+
 $fileType_filesButNot           # bug#12373?
     = join( '|', map { quotemeta($_).'$' } @{$fileType->{filesButNot}} );