Autoload some string functions

These functions are documented in both `(elisp) Creating Strings' and
'M-x shortdoc RET string RET', so users will expect them to be available
without having to require 'subr-x'.

* lisp/emacs-lisp/subr-x.el (string-fill, string-limit, string-pad)
(string-chop-newline): Autoload.

(cherry picked from commit d64396b8e427e883c47754b133d56cace1219f97)

diff --git a/lisp/emacs-lisp/subr-x.el b/lisp/emacs-lisp/subr-x.el
index 699be767ee7ef8ec0ea3642ac1d0007448d1174e..e62a08b7a8bb0a5e681e3ecc95638d5df3ed9be7 100644 (file)
--- a/lisp/emacs-lisp/subr-x.el
+++ b/lisp/emacs-lisp/subr-x.el
@@ -158,6 +158,7 @@ removed."
     (string-trim (replace-regexp-in-string blank " " string t t)
                  blank blank)))
 
+;;;###autoload
 (defun string-fill (string length)
   "Try to word-wrap STRING so that no lines are longer than LENGTH.
 Wrapping is done where there is whitespace.  If there are
@@ -172,6 +173,7 @@ result will have lines that are longer than LENGTH."
       (fill-region (point-min) (point-max)))
     (buffer-string)))
 
+;;;###autoload
 (defun string-limit (string length &optional end coding-system)
   "Return a substring of STRING that is (up to) LENGTH characters long.
 If STRING is shorter than or equal to LENGTH characters, return the
@@ -253,6 +255,7 @@ than this function."
      (end (substring string (- (length string) length)))
      (t (substring string 0 length)))))
 
+;;;###autoload
 (defun string-pad (string length &optional padding start)
   "Pad STRING to LENGTH using PADDING.
 If PADDING is nil, the space character is used.  If not nil, it
@@ -272,6 +275,7 @@ the string."
           (start (concat (make-string pad-length (or padding ?\s)) string))
           (t (concat string (make-string pad-length (or padding ?\s)))))))
 
+;;;###autoload
 (defun string-chop-newline (string)
   "Remove the final newline (if any) from STRING."
   (declare (pure t) (side-effect-free t))