* mml2015.el: Require `gnus-clfns' when compiling.

[elisp/gnus.git-] / lisp / gnus-clfns.el

diff --git a/lisp/gnus-clfns.el b/lisp/gnus-clfns.el
index a855553..123b9b1 100644 (file)
--- a/lisp/gnus-clfns.el
+++ b/lisp/gnus-clfns.el
@@ -135,6 +135,33 @@
     "Concatenate all the argument characters and make the result a string."
     (concat args))
 
+  (define-compiler-macro string-to-list (&whole form string)
+    (cond ((fboundp 'string-to-list)
+          form)
+         ((fboundp 'string-to-char-list)
+          (list 'string-to-char-list string))
+         (t
+          `(let* ((str ,string)
+                  (len (length str))
+                  (idx 0)
+                  c l)
+             (while (< idx len)
+               (setq c (sref str idx))
+               (setq idx (+ idx (char-bytes c)))
+               (setq l (cons c l)))
+             (nreverse l)))))
+
+  ;; 92.7.2 by K.Handa (imported from Mule 2.3)
+  (defun-maybe string-to-list (str)
+    (let ((len (length str))
+         (idx 0)
+         c l)
+      (while (< idx len)
+       (setq c (sref str idx))
+       (setq idx (+ idx (char-bytes c)))
+       (setq l (cons c l)))
+      (nreverse l)))
+
   (define-compiler-macro subseq (&whole form seq start &optional end)
     (if (and (fboundp 'subseq)
             (subrp (symbol-function 'subseq)))