- (when (boundp symbol)
- (let ((value (savehist-trim-history (symbol-value symbol))))
- (when value ; don't save empty histories
- (prin1 `(setq ,symbol ',value) (current-buffer))
- (insert ?\n))))))
+ (when (and (boundp symbol)
+ (not (memq symbol savehist-ignored-variables)))
+ (let ((value (savehist-trim-history (symbol-value symbol)))
+ excess-space)
+ (when value ; Don't save empty histories.
+ (insert "(setq ")
+ (prin1 symbol (current-buffer))
+ (insert " '(")
+ ;; We will print an extra space before the first element.
+ ;; Record where that is.
+ (setq excess-space (point))
+ ;; Print elements of VALUE one by one, carefully.
+ (dolist (elt value)
+ (let ((start (point)))
+ (insert " ")
+ ;; Try to print and then to read an element.
+ (condition-case nil
+ (progn
+ (prin1 elt (current-buffer))
+ (save-excursion
+ (goto-char start)
+ (read (current-buffer))))
+ (error
+ ;; If writing or reading gave an error, comment it out.
+ (goto-char start)
+ (insert "\n")
+ (while (not (eobp))
+ (insert ";;; ")
+ (forward-line 1))
+ (insert "\n")))
+ (goto-char (point-max))))
+ ;; Delete the extra space before the first element.
+ (save-excursion
+ (goto-char excess-space)
+ (if (eq (following-char) ?\s)
+ (delete-region (point) (1+ (point)))))
+ (insert "))\n"))))))