(char-ref=): New function [moved from char-db-util.el].

(char-spec=): Likewise.
Update standard case-table from the char-attribute `->lowercase' and
`->uppercase'.

diff --git a/lisp/utf-2000/update-cdb.el b/lisp/utf-2000/update-cdb.el
index 3eadd0b..3666b41 100644 (file)
--- a/lisp/utf-2000/update-cdb.el
+++ b/lisp/utf-2000/update-cdb.el
@@ -90,6 +90,44 @@
     (pureload file))
   ))
 
+(defun char-ref= (cr1 cr2)
+  (cond ((char-ref-p cr1)
+        (if (char-ref-p cr2)
+            (char-spec= (plist-get cr1 :char)
+                        (plist-get cr2 :char))
+          (char-spec= (plist-get cr1 :char) cr2)))
+       (t
+        (char-spec= cr1
+                    (if (char-ref-p cr2)
+                        (plist-get cr2 :char)
+                      cr2)))))
+
+(defun char-spec= (cs1 cs2)
+  (if (characterp cs1)
+      (if (characterp cs2)
+         (eq cs1 cs2)
+       (eq cs1 (find-char cs2)))
+    (if (characterp cs2)
+       (eq (find-char cs1) cs2)
+      (eq (find-char cs1) (find-char cs2)))))
+
+(let (ret)
+  (map-char-attribute
+   (lambda (c dc)
+     (if (consp dc)
+        (setq dc (car dc)))
+     (if (listp dc)
+        (if (setq ret (find-char dc))
+            (setq dc ret)))
+     (when (characterp dc)
+       (setq ret (get-char-attribute dc '->uppercase))
+       (if (if (listp ret)
+              (member* c ret :test #'char-ref=)
+            (char-ref= c ret))
+          (put-case-table-pair c dc (standard-case-table))))
+     nil)
+   '->lowercase))
+
 (garbage-collect)
 
 ;;; update-cdb.el ends here