Function: custom-variable-state

custom-variable-state is a byte-compiled function defined in cus-edit.el.gz.

Signature

(custom-variable-state SYMBOL VAL)

Documentation

Return the state of SYMBOL if its value is VAL.

If SYMBOL has a non-nil custom-get property, it overrides VAL. Possible return values are standard, saved, set, themed, changed, and rogue.

Source Code

;; Defined in /usr/src/emacs/lisp/cus-edit.el.gz
(defun custom-variable-state (symbol val)
  "Return the state of SYMBOL if its value is VAL.
If SYMBOL has a non-nil `custom-get' property, it overrides VAL.
Possible return values are `standard', `saved', `set', `themed',
`changed', and `rogue'."
  (let* ((get (or (get symbol 'custom-get) 'default-value))
	 (value (if (default-boundp symbol)
		    (funcall get symbol)
		  val))
	 (comment (get symbol 'variable-comment))
	 tmp
	 temp)
    (cond ((progn (setq tmp (get symbol 'customized-value))
		  (setq temp
			(get symbol 'customized-variable-comment))
		  (or tmp temp))
	   (if (condition-case nil
		   (and (equal value (eval (car tmp)))
			(equal comment temp))
		 (error nil))
               (if (custom--standard-value-p symbol value)
                   'standard
                 'set)
	     'changed))
	  ((progn (setq tmp (get symbol 'theme-value))
		  (setq temp (get symbol 'saved-variable-comment))
		  (or tmp temp))
	   (if (condition-case nil
		   (and (equal comment temp)
			(equal value
			       (eval
				(car (custom-variable-theme-value
				      symbol)))))
		 (error nil))
	       (cond
		((eq (caar tmp) 'user) 'saved)
		((eq (caar tmp) 'changed)
		 (if (condition-case nil
			 (and (null comment)
			      (equal value
				     (eval
				      (car (get symbol 'standard-value)))))
		       (error nil))
		     ;; The value was originally set outside
		     ;; custom, but it was set to the standard
		     ;; value (probably an autoloaded defcustom).
		     'standard
		   'changed))
		(t 'themed))
	     'changed))
	  ((setq tmp (get symbol 'standard-value))
	   (if (condition-case nil
		   (and (equal value (eval (car tmp)))
			(equal comment nil))
		 (error nil))
	       'standard
	     'changed))
	  (t 'rogue))))