master a1b2ec6: Make viper-subseq into obsolete alias for cl-subseq

[Stefan Kangas]

branch: master
commit a1b2ec6e06690ac51e9cf0f13338c345674594e1
Author: Stefan Kangas <stefan@marxist.se>
Commit: Stefan Kangas <stefan@marxist.se>

    Make viper-subseq into obsolete alias for cl-subseq
    
    * lisp/emulation/viper-util.el (viper-subseq): Make into obsolete
    function alias for 'cl-subseq'.  Update callers.
---
 lisp/emulation/viper-macs.el | 10 +++++-----
 lisp/emulation/viper-util.el | 29 ++---------------------------
 2 files changed, 7 insertions(+), 32 deletions(-)

diff --git a/lisp/emulation/viper-macs.el b/lisp/emulation/viper-macs.el
index 94ab817..7400154 100644
--- a/lisp/emulation/viper-macs.el
+++ b/lisp/emulation/viper-macs.el
@@ -230,9 +230,9 @@ a key is a symbol, e.g., `a', `\\1', `f2', etc., or a list, 
e.g.,
        (cond ((member
                key
                '(?\b ?\d '^? '^H (control h) (control \?) backspace delete))
-              (setq key-seq (viper-subseq key-seq 0 (- (length key-seq) 2))))
+               (setq key-seq (cl-subseq key-seq 0 (- (length key-seq) 2))))
              ((member key '(tab (control i) ?\t))
-              (setq key-seq (viper-subseq key-seq 0 (1- (length key-seq))))
+               (setq key-seq (cl-subseq key-seq 0 (1- (length key-seq))))
               (setq message
                     (format
                      ":unmap%s %s"
@@ -611,7 +611,7 @@ mistakes in macro names to be passed to this function is to 
use
 
     (if (null macro-alist-elt)
        (setq macro-alist-elt (car next-best-match)
-             unmatched-suffix (viper-subseq event-seq (cdr next-best-match))))
+              unmatched-suffix (cl-subseq event-seq (cdr next-best-match))))
 
     (cond ((null macro-alist-elt))
          ((setq macro-body (viper-kbd-buf-definition macro-alist-elt)))
@@ -693,7 +693,7 @@ mistakes in macro names to be passed to this function is to 
use
   (let ((len1 (length seq1))
        (len2 (length seq2)))
     (if (<= len1 len2)
-       (equal seq1 (viper-subseq seq2 0 len1)))))
+        (equal seq1 (cl-subseq seq2 0 len1)))))
 
 ;; find the longest common prefix
 (defun viper-common-seq-prefix (&rest seqs)
@@ -757,7 +757,7 @@ mistakes in macro names to be passed to this function is to 
use
       (setq macro-def (car lis)
            def-len (length (car macro-def)))
       (if (and (>= str-len def-len)
-              (equal (car macro-def) (viper-subseq str 0 def-len)))
+               (equal (car macro-def) (cl-subseq str 0 def-len)))
          (if (or (viper-kbd-buf-definition macro-def)
                  (viper-kbd-mode-definition macro-def)
                  (viper-kbd-global-definition macro-def))
diff --git a/lisp/emulation/viper-util.el b/lisp/emulation/viper-util.el
index 51f7406..8ff1cf9 100644
--- a/lisp/emulation/viper-util.el
+++ b/lisp/emulation/viper-util.el
@@ -927,7 +927,7 @@ Otherwise return the normal value."
                 (t key)))
 
          ((listp key)
-          (setq modifiers (viper-subseq key 0 (1- (length key)))
+           (setq modifiers (cl-subseq key 0 (1- (length key)))
                 base-key (viper-seq-last-elt key)
                 base-key-name (symbol-name base-key)
                 char-p (= (length base-key-name) 1))
@@ -1345,32 +1345,7 @@ This option is appropriate if you like Emacs-style 
words."
       (not (eq (get-char-property (point) 'field)
               (get-char-property (1- (point)) 'field)))))
 
-
-;; this is copied from cl-extra.el
-;; Return the subsequence of SEQ from START to END.
-;; If END is omitted, it defaults to the length of the sequence.
-;; If START or END is negative, it counts from the end.
-(defun viper-subseq (seq start &optional end)
-  (if (stringp seq) (substring seq start end)
-    (let (len)
-      (and end (< end 0) (setq end (+ end (setq len (length seq)))))
-      (if (< start 0) (setq start (+ start (or len (setq len (length seq))))))
-      (cond ((listp seq)
-            (if (> start 0) (setq seq (nthcdr start seq)))
-            (if end
-                (let ((res nil))
-                  (while (>= (setq end (1- end)) start)
-                    (push (pop seq) res))
-                  (nreverse res))
-              (copy-sequence seq)))
-           (t
-            (or end (setq end (or len (length seq))))
-            (let ((res (make-vector (max (- end start) 0) nil))
-                  (i 0))
-              (while (< start end)
-                (aset res i (aref seq start))
-                (setq i (1+ i) start (1+ start)))
-              res))))))
+(define-obsolete-function-alias 'viper-subseq #'cl-subseq "28.1")
 
 (provide 'viper-util)
 ;;; viper-util.el ends here