From 062e286b7ccf2b23cfafef1bf1128eaf91e0ec94 Mon Sep 17 00:00:00 2001
From: Stefan Monnier <monnier@iro.umontreal.ca>
Date: Wed, 2 Apr 2014 20:41:09 -0400
Subject: [PATCH] * lisp/progmodes/perl-mode.el
 (perl-syntax-propertize-function): Handle $' used as a variable.

Fixes: debbugs:17174
---
 lisp/ChangeLog              | 5 +++++
 lisp/progmodes/perl-mode.el | 6 +++++-
 src/ChangeLog               | 2 +-
 test/indent/perl.perl       | 4 ++++
 4 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 740d95c29e1..5ea2d4483c4 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+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):
diff --git a/lisp/progmodes/perl-mode.el b/lisp/progmodes/perl-mode.el
index cf9347d0e6d..3486c0a1983 100644
--- a/lisp/progmodes/perl-mode.el
+++ b/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
diff --git a/src/ChangeLog b/src/ChangeLog
index 18b643bfe28..6f42a46cbd4 100644
--- a/src/ChangeLog
+++ b/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).
diff --git a/test/indent/perl.perl b/test/indent/perl.perl
index 69c1f90c807..7cb877b0a95 100755
--- a/test/indent/perl.perl
+++ b/test/indent/perl.perl
@@ -16,5 +16,9 @@ EOF1
 bar
 EOF2
 
+print $'; # This should not start a string!
+
+print "hello" for /./;
+
 $fileType_filesButNot           # bug#12373?
     = join( '|', map { quotemeta($_).'$' } @{$fileType->{filesButNot}} );
-- 
2.39.2