X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/cce7d53002e8abc346b67ea4100507b0e7c4d68e..59f7af816e98a74abf42d724bcfdfa9bfe9964ce:/lisp/international/ucs-normalize.el

diff --git a/lisp/international/ucs-normalize.el b/lisp/international/ucs-normalize.el
index f83e0f7588..54566e1d00 100644
--- a/lisp/international/ucs-normalize.el
+++ b/lisp/international/ucs-normalize.el
@@ -1,6 +1,6 @@
 ;;; ucs-normalize.el --- Unicode normalization NFC/NFD/NFKD/NFKC
 
-;; Copyright (C) 2009-2011  Free Software Foundation, Inc.
+;; Copyright (C) 2009-2012  Free Software Foundation, Inc.
 
 ;; Author: Taichi Kawabata <kawabata.taichi@gmail.com>
 ;; Keywords: unicode, normalization
@@ -109,7 +109,7 @@
 
 (defconst ucs-normalize-version "1.2")
 
-(eval-when-compile (require 'cl))
+(eval-when-compile (require 'cl-lib))
 
 (declare-function nfd "ucs-normalize" (char))
 
@@ -139,14 +139,17 @@
   (defun nfd (char)
     (let ((decomposition
            (get-char-code-property char 'decomposition)))
-      (if (and decomposition (numberp (car decomposition)))
+      (if (and decomposition (numberp (car decomposition))
+	       (or (> (length decomposition) 1)
+		   (/= (car decomposition) char)))
           decomposition)))
 
   (defun nfkd (char)
     (let ((decomposition
            (get-char-code-property char 'decomposition)))
       (if (symbolp (car decomposition)) (cdr decomposition)
-        decomposition)))
+        (if (or (> (length decomposition) 1)
+		(/= (car decomposition) char)) decomposition))))
 
   (defun hfs-nfd (char)
     (when (or (and (>= char 0) (< char #x2000))
@@ -176,10 +179,13 @@
   (let ((char 0) ccc decomposition)
     (mapc
      (lambda (start-end)
-       (do ((char (car start-end) (+ char 1))) ((> char (cdr start-end)))
+       (cl-do ((char (car start-end) (+ char 1))) ((> char (cdr start-end)))
          (setq ccc (ucs-normalize-ccc char))
          (setq decomposition (get-char-code-property
                               char 'decomposition))
+	 (if (and (= (length decomposition) 1)
+		  (= (car decomposition) char))
+	     (setq decomposition nil))
          (if (and ccc (/= 0 ccc)) (add-to-list 'combining-chars char))
          (if (and (numberp (car decomposition))
                   (/= (ucs-normalize-ccc (car decomposition))
@@ -221,7 +227,7 @@ Note that Hangul are excluded.")
          (eval-when-compile decomposition-pair-to-composition)))
 
 (defun ucs-normalize-primary-composite (decomposition-pair composition-predicate)
-  "Convert DECOMPOSITION-PAIR to primay composite using COMPOSITION-PREDICATE."
+  "Convert DECOMPOSITION-PAIR to primary composite using COMPOSITION-PREDICATE."
   (let ((char (or (gethash decomposition-pair
                            ucs-normalize-decomposition-pair-to-primary-composite)
                   (and (<= #x1100 (car decomposition-pair))
@@ -264,7 +270,7 @@ Note that Hangul are excluded.")
     (let (decomposition alist)
       (mapc
        (lambda (start-end)
-         (do ((char (car start-end) (+ char 1))) ((> char (cdr start-end)))
+         (cl-do ((char (car start-end) (+ char 1))) ((> char (cdr start-end)))
            (setq decomposition (funcall decomposition-function char))
            (if decomposition
                (setq alist (cons (cons char
@@ -385,7 +391,7 @@ decomposition."
     (let (entries decomposition composition)
       (mapc
        (lambda (start-end)
-         (do ((i (car start-end) (+ i 1))) ((> i (cdr start-end)))
+         (cl-do ((i (car start-end) (+ i 1))) ((> i (cdr start-end)))
            (setq decomposition
                  (string-to-list
                   (with-temp-buffer