master 178feee: Remove some compat code from cperl-mode

[Stefan Kangas]

branch: master
commit 178feeec4609e021ae9aa09c673ae19d86529228
Author: Stefan Kangas <stefankangas@gmail.com>
Commit: Stefan Kangas <stefankangas@gmail.com>

    Remove some compat code from cperl-mode
    
    * lisp/progmodes/cperl-mode.el (cperl-use-syntax-table-text-property)
    (cperl-syntaxify-by-font-lock, cperl-mode-map, cperl-mode)
    (cperl-windowed-init, cperl-init-faces, cperl-write-tags): Remove
    some XEmacs and <21 compat code.
---
 lisp/progmodes/cperl-mode.el | 35 +++++++++--------------------------
 1 file changed, 9 insertions(+), 26 deletions(-)

diff --git a/lisp/progmodes/cperl-mode.el b/lisp/progmodes/cperl-mode.el
index 2d2713a..c47aa2e 100644
--- a/lisp/progmodes/cperl-mode.el
+++ b/lisp/progmodes/cperl-mode.el
@@ -451,8 +451,7 @@ Older version of this page was called `perl5', newer 
`perl'."
   :type 'string
   :group 'cperl-help-system)
 
-(defcustom cperl-use-syntax-table-text-property
-  (boundp 'parse-sexp-lookup-properties)
+(defcustom cperl-use-syntax-table-text-property t
   "Non-nil means CPerl sets up and uses `syntax-table' text property."
   :type 'boolean
   :group 'cperl-speed)
@@ -535,8 +534,7 @@ One should tune up `cperl-close-paren-offset' as well."
   :type 'boolean
   :group 'cperl-indentation-details)
 
-(defcustom cperl-syntaxify-by-font-lock
-  (boundp 'parse-sexp-lookup-properties)
+(defcustom cperl-syntaxify-by-font-lock t
   "Non-nil means that CPerl uses the `font-lock' routines for syntaxification."
   :type '(choice (const message) boolean)
   :group 'cperl-speed)
@@ -1081,10 +1079,6 @@ versions of Emacs."
       (define-key map [(control ?c) (control ?h) ?v]
        ;;(concat (char-to-string help-char) "v") ; does not work
        'cperl-get-help))
-    (or (boundp 'fill-paragraph-function)
-        (substitute-key-definition
-         'fill-paragraph 'cperl-fill-paragraph
-         map global-map))
     (substitute-key-definition
      'indent-sexp 'cperl-indent-exp
      map global-map)
@@ -1637,9 +1631,8 @@ or as help on variables `cperl-tips', `cperl-problems',
               "\\)"
               cperl-maybe-white-and-comment-rex))
   (set (make-local-variable 'comment-indent-function) #'cperl-comment-indent)
-  (and (boundp 'fill-paragraph-function)
-       (set (make-local-variable 'fill-paragraph-function)
-            #'cperl-fill-paragraph))
+  (set (make-local-variable 'fill-paragraph-function)
+       #'cperl-fill-paragraph)
   (set (make-local-variable 'parse-sexp-ignore-comments) t)
   (set (make-local-variable 'indent-region-function) #'cperl-indent-region)
   ;;(setq auto-fill-function #'cperl-do-auto-fill) ; Need to switch on and off!
@@ -1701,13 +1694,8 @@ or as help on variables `cperl-tips', `cperl-problems',
                 ;;  to make font-lock think that font-lock-syntactic-keywords
                 ;;  are defined.
                '(t)))))
-  (if (boundp 'font-lock-multiline)    ; Newer font-lock; use its facilities
-      (progn
-       (setq cperl-font-lock-multiline t) ; Not localized...
-       (set (make-local-variable 'font-lock-multiline) t))
-    (set (make-local-variable 'font-lock-fontify-region-function)
-         ;; not present with old Emacs
-        #'cperl-font-lock-fontify-region-function))
+  (setq cperl-font-lock-multiline t) ; Not localized...
+  (set (make-local-variable 'font-lock-multiline) t)
   (set (make-local-variable 'font-lock-fontify-region-function)
        #'cperl-font-lock-fontify-region-function)
   (make-local-variable 'cperl-old-style)
@@ -5451,8 +5439,7 @@ indentation and initial hashes.  Behaves usually outside 
of comment."
   (cond ((featurep 'ps-print)
         (or cperl-faces-init
             (progn
-              (and (boundp 'font-lock-multiline)
-                   (setq cperl-font-lock-multiline t))
+              (setq cperl-font-lock-multiline t)
               (cperl-init-faces))))
        ((not cperl-faces-init)
         (add-hook 'font-lock-mode-hook
@@ -5499,12 +5486,8 @@ indentation and initial hashes.  Behaves usually outside 
of comment."
   (condition-case errs
       (progn
        (require 'font-lock)
-       (and (fboundp 'font-lock-fontify-anchored-keywords)
-            (featurep 'font-lock-extra)
-            (message "You have an obsolete package `font-lock-extra'.  Install 
`choose-color'."))
        (let (t-font-lock-keywords t-font-lock-keywords-1 font-lock-anchored)
-         (if (fboundp 'font-lock-fontify-anchored-keywords)
-             (setq font-lock-anchored t))
+         (setq font-lock-anchored t)
          (setq
           t-font-lock-keywords
           (list
@@ -6857,7 +6840,7 @@ Use as
              (insert (cperl-find-tags file xs topdir))))))
       (if inbuffer nil                 ; Delegate to the caller
        (save-buffer 0)                 ; No backup
-       (if (fboundp 'initialize-new-tags-table) ; Do we need something special 
in XEmacs?
+       (if (fboundp 'initialize-new-tags-table)
            (initialize-new-tags-table))))))
 
 (defvar cperl-tags-hier-regexp-list