(cperl-mode): Set major-mode to cperl-mode

so that C-h m shows the correct information.
Use make-local-variable rather than make-variable-buffer-local.
(cperl-info-buffer, cperl-setup-tmp-buf):
Use make-local-variable rather than make-variable-buffer-local.

Updated to author version 4.23.
(cperl-electric-pod): SYNOPSIS was misspelled.
(cperl-find-pods-heres): @if ? a : b was considered a REx.
(cperl-after-expr-p): Make true after __END__.

lisp/progmodes/cperl-mode.el

@@ -189,7 +189,7 @@ for constructs with multiline if/unless/while/until/for/foreach condition."
 
 (defcustom cperl-lineup-step nil
   "*`cperl-lineup' will always lineup at multiple of this number.
-If `nil', the value of `cperl-indent-level' will be used."
+If nil, the value of `cperl-indent-level' will be used."
   :type '(choice (const nil) integer)
   :group 'cperl-indentation-details)
 
@@ -248,13 +248,13 @@ regardless of where in the line point is when the TAB command is used."
   :group 'cperl-indentation-details)
 
 (defcustom cperl-font-lock nil
-  "*Non-nil (and non-null) means CPerl buffers will use font-lock-mode.
+  "*Non-nil (and non-null) means CPerl buffers will use `font-lock-mode'.
 Can be overwritten by `cperl-hairy' if nil."
   :type '(choice (const null) boolean)
   :group 'cperl-affected-by-hairy)
 
 (defcustom cperl-electric-lbrace-space nil
-  "*Non-nil (and non-null) means { after $ in CPerl buffers should be preceded by ` '.
+  "*Non-nil (and non-null) means { after $ should be preceded by ` '.
 Can be overwritten by `cperl-hairy' if nil."
   :type '(choice (const null) boolean)
   :group 'cperl-affected-by-hairy)
@@ -431,7 +431,7 @@ Older version of this page was called `perl5', newer `perl'."
 
 (defcustom cperl-regexp-indent-step nil
   "*Indentation used when beautifying regexps.
-If `nil', the value of `cperl-indent-level' will be used."
+If nil, the value of `cperl-indent-level' will be used."
   :type '(choice integer (const nil))
   :group 'cperl-indentation-details)
 
@@ -600,7 +600,7 @@ from Perl menu).  If many files are related, generate TAGS files from
 Tools/Tags submenu in Perl menu.
 
 If some class structure is too complicated, use Tools/Hierarchy-view
-from Perl menu, or hierarchic view of imenu. The second one uses the
+from Perl menu, or hierarchic view of imenu.  The second one uses the
 current buffer only, the first one requires generation of TAGS from
 Perl/Tools/Tags menu beforehand.
 
@@ -611,12 +611,12 @@ Switch auto-help on/off with Perl/Tools/Auto-help.
 Though with contemporary Emaxen CPerl mode should maintain the correct
 parsing of Perl even when editing, sometimes it may be lost.  Fix this by
 
-  M-x norm RET
+  \\[normal-mode]
 
 In cases of more severe confusion sometimes it is helpful to do
 
-  M-x load-l RET cperl-mode RET
-  M-x norm RET
+  \\[load-library] cperl-mode RET
+  \\[normal-mode]
 
 Before reporting (non-)problems look in the problem section of online
 micro-docs on what I know about CPerl problems.")
@@ -719,7 +719,7 @@ Imenu in 19.31 is broken.  Set `imenu-use-keymap-menu' to t, and remove
 `imenu-add-to-menubar' in 20.2 is broken.
 
 A lot of things on XEmacs may be broken too, judging by bug reports I
-recieve.  Note that some releases of XEmacs are better than the others
+receive.  Note that some releases of XEmacs are better than the others
 as far as bugs reports I see are concerned.")
 
 (defvar cperl-praise 'please-ignore-this-line
@@ -800,6 +800,9 @@ the settings present before the switch.
 
 9) When doing indentation of control constructs, may correct
 line-breaks/spacing between elements of the construct.
+
+10) Uses a linear-time algorith for indentation of regions (on Emaxen with
+capable syntax engines).
 ")
 
 (defvar cperl-speed 'please-ignore-this-line
@@ -898,7 +901,7 @@ the faces: please specify bold, italic, underline, shadow and box.)
 (defvar cperl-del-back-ch
   (car (append (where-is-internal 'delete-backward-char)
 	       (where-is-internal 'backward-delete-char-untabify)))
-  "Character generated by key bound to delete-backward-char.")
+  "Character generated by key bound to `delete-backward-char'.")
 
 (and (vectorp cperl-del-back-ch) (= (length cperl-del-back-ch) 1)
      (setq cperl-del-back-ch (aref cperl-del-back-ch 0)))
@@ -1414,7 +1417,7 @@ or as help on variables `cperl-tips', `cperl-problems',
 	(cperl-define-key "\C-hf" 'cperl-info-on-current-command [(control h) f])
 	(cperl-define-key "\C-c\C-hf" 'cperl-info-on-command
 			  [(control c) (control h) f])))
-  (setq major-mode 'perl-mode)
+  (setq major-mode 'cperl-mode)
   (setq mode-name "CPerl")
   (if (not cperl-mode-abbrev-table)
       (let ((prev-a-c abbrevs-changed))
@@ -1489,22 +1492,22 @@ or as help on variables `cperl-tips', `cperl-problems',
   (make-local-variable 'cperl-syntax-state)
   (if cperl-use-syntax-table-text-property
       (progn
-	(make-variable-buffer-local 'parse-sexp-lookup-properties)
+	(make-local-variable 'parse-sexp-lookup-properties)
 	;; Do not introduce variable if not needed, we check it!
 	(set 'parse-sexp-lookup-properties t)
 	;; Fix broken font-lock:
 	(or (boundp 'font-lock-unfontify-region-function)
 	    (set 'font-lock-unfontify-region-function
 		  'font-lock-default-unfontify-region))
-	(make-variable-buffer-local 'font-lock-unfontify-region-function)
+	(make-local-variable 'font-lock-unfontify-region-function)
 	(set 'font-lock-unfontify-region-function
 	      'cperl-font-lock-unfontify-region-function)
-	(make-variable-buffer-local 'cperl-syntax-done-to)
+	(make-local-variable 'cperl-syntax-done-to)
 	;; Another bug: unless font-lock-syntactic-keywords, font-lock
 	;;  ignores syntax-table text-property.  (t) is a hack
 	;;  to make font-lock think that font-lock-syntactic-keywords
 	;;  are defined
-	(make-variable-buffer-local 'font-lock-syntactic-keywords)
+	(make-local-variable 'font-lock-syntactic-keywords)
 	(setq font-lock-syntactic-keywords
 	      (if cperl-syntaxify-by-font-lock
 		  '(t (cperl-fontify-syntaxically))
@@ -1942,7 +1945,7 @@ to nil."
 				   (file-name-nondirectory (buffer-file-name)))
 			     p (point))
 		       (insert " NAME\n\n" name
-			       " - \n\n=head1 SYNOPSYS\n\n\n\n"
+			       " - \n\n=head1 SYNOPSIS\n\n\n\n"
 			       "=head1 DESCRIPTION")
 		       (cperl-ensure-newlines 4)
 		       (goto-char p)
@@ -2818,7 +2821,7 @@ the current line is to be regarded as part of a block comment."
 
 
 (defun cperl-to-comment-or-eol ()
-  "Goes to position before comment on the current line, or to end of line.
+  "Go to position before comment on the current line, or to end of line.
 Returns true if comment is found."
   (let (state stop-in cpoint (lim (progn (end-of-line) (point))))
       (beginning-of-line)
@@ -3390,8 +3393,11 @@ the sections using `cperl-pod-head-face', `cperl-pod-face',
 					     (if (eq (preceding-char) ?-)
 						 ;; -d ?foo? is a RE
 						 (looking-at "[a-zA-Z]\\>")
-					     (looking-at
-						"\\(while\\|if\\|unless\\|until\\|and\\|or\\|not\\|xor\\|split\\|grep\\|map\\|print\\)\\>"))))
+					       (and
+						(not (memq (preceding-char)
+							   '(?$ ?@ ?& ?%)))
+						(looking-at
+						 "\\(while\\|if\\|unless\\|until\\|and\\|or\\|not\\|xor\\|split\\|grep\\|map\\|print\\)\\>")))))
 				      (and (eq (preceding-char) ?.)
 					   (eq (char-after (- (point) 2)) ?.))
 				      (bobp))
@@ -3630,7 +3636,7 @@ the sections using `cperl-pod-head-face', `cperl-pod-face',
       (error nil))))
 
 (defun cperl-after-expr-p (&optional lim chars test)
-  "Returns true if the position is good for start of expression.
+  "Return true if the position is good for start of expression.
 TEST is the expression to evaluate at the found position.  If absent,
 CHARS is a string that contains good characters to have before us (however,
 `}' is treated \"smartly\" if it is not in the list)."
@@ -3657,6 +3663,7 @@ CHARS is a string that contains good characters to have before us (however,
 	    (setq stop t))))
       (or (bobp)			; ???? Needed
 	  (eq (point) lim)
+	  (looking-at "[ \t]*__\\(END\\|DATA\\)__") ; After this anything goes
 	  (progn
 	    (if test (eval test)
 	      (or (memq (preceding-char) (append (or chars "{;") nil))
@@ -4981,7 +4988,7 @@ side-effect of memorizing only."
 	       (set-buffer "*info-perl-tmp*")
 	       (rename-buffer "*info*")
 	       (set-buffer bname)))
-	(make-variable-buffer-local 'window-min-height)
+	(make-local-variable 'window-min-height)
 	(setq window-min-height 2)
 	(current-buffer)))))
 
@@ -5000,7 +5007,7 @@ side-effect of memorizing only."
 		       'find-tag-default))))))
 
 (defun cperl-info-on-command (command)
-  "Shows documentation for Perl command in other window.
+  "Show documentation for Perl command in other window.
 If perl-info buffer is shown in some frame, uses this frame.
 Customized by setting variables `cperl-shrink-wrap-info-frame',
 `cperl-max-help-size'."
@@ -5083,7 +5090,7 @@ Customized by setting variables `cperl-shrink-wrap-info-frame',
     (select-window iniwin)))
 
 (defun cperl-info-on-current-command ()
-  "Shows documentation for Perl command at point in other window."
+  "Show documentation for Perl command at point in other window."
   (interactive)
   (cperl-info-on-command (cperl-word-at-point)))
 
@@ -5133,7 +5140,7 @@ partially contained in the region are lined up at the same column.
 
 MINSHIFT is the minimal amount of space to insert before the construction.
 STEP is the tabwidth to position constructions.
-If STEP is `nil', `cperl-lineup-step' will be used
+If STEP is nil, `cperl-lineup-step' will be used
 \(or `cperl-indent-level', if `cperl-lineup-step' is `nil').
 Will not move the position at the start to the left."
   (interactive "r")
@@ -5273,7 +5280,7 @@ See `cperl-lazy-help-time' too."
   (auto-fill-mode 0)
   (if cperl-use-syntax-table-text-property-for-tags
       (progn
-	(make-variable-buffer-local 'parse-sexp-lookup-properties)
+	(make-local-variable 'parse-sexp-lookup-properties)
 	;; Do not introduce variable if not needed, we check it!
 	(set 'parse-sexp-lookup-properties t))))
 
@@ -6919,7 +6926,7 @@ We suppose that the regexp is scanned already."
 	  (cperl-fontify-syntaxically to)))))
 
 (defvar cperl-version
-  (let ((v  "Revision: 4.21"))
+  (let ((v  "Revision: 4.23"))
     (string-match ":\\s *\\([0-9.]+\\)" v)
     (substring v (match-beginning 1) (match-end 1)))
   "Version of IZ-supported CPerl package this file is based on.")