+ (set-difference
+ (get-char-attribute variant 'ideographic-products)
+ ignored-chars))))
+ (setq dest products)
+ (while (and dest
+ (setq components (cdr components)))
+ (setq products nil)
+ (dolist (variant (char-component-variants (car components)))
+ (setq products
+ (union products
+ (set-difference
+ (get-char-attribute variant 'ideographic-products)
+ ignored-chars))))
+ (setq dest (intersection dest products)))
+ dest))
+
+(defun ideograph-find-products (components &optional ignored-chars)
+ (if (stringp components)
+ (setq components (string-to-char-list components)))
+ (let (dest products)
+ ;; (dolist (variant (char-component-variants (car components)))
+ ;; (setq products
+ ;; (union products
+ ;; (get-char-attribute variant 'ideographic-products))))
+ ;; (setq dest products)
+ (setq dest (get-char-attribute (car components) 'ideographic-products))
+ (while (and dest
+ (setq components (cdr components)))
+ ;; (setq products nil)
+ ;; (dolist (variant (char-component-variants (car components)))
+ ;; (setq products
+ ;; (union products
+ ;; (get-char-attribute variant 'ideographic-products))))
+ (setq products (get-char-attribute (car components) 'ideographic-products))