+;;; @ char feature
+;;;
+
+;;;###autoload
+(defun char-ucs (char)
+ "Return code-point of UCS."
+ (or (encode-char char '=ucs 'defined-only)
+ (char-feature char '=>ucs)))
+
+;;;###autoload
+(defun char-id (char)
+ (logand (char-int char) #x3FFFFFFF))
+
+
+;;; @ char hierarchy
+;;;
+
+;;;###autoload
+(defun map-char-family (function char &optional ignore-sisters)
+ (let ((rest (list char))
+ ret checked)
+ (catch 'tag
+ (while rest
+ (unless (memq (car rest) checked)
+ (if (setq ret (funcall function (car rest)))
+ (throw 'tag ret))
+ (setq checked (cons (car rest) checked)
+ rest (append rest
+ (get-char-attribute (car rest) '->subsumptive)
+ (get-char-attribute (car rest) '->denotational)
+ (get-char-attribute (car rest) '->identical)))
+ (unless ignore-sisters
+ (setq rest (append rest
+ (get-char-attribute (car rest) '<-subsumptive)
+ (get-char-attribute (car rest) '<-denotational)))))
+ (setq rest (cdr rest))))))
+
+
+;;;###autoload
+(defun define-char-before (char-spec next-char)
+ "Define CHAR-SPEC and insert it before NEXT-CHAR."
+ (let (mother sisters rest)
+ (when (and (or (characterp next-char)
+ (setq next-char (find-char next-char)))
+ (setq mother (get-char-attribute next-char '<-subsumptive))
+ (setq mother (car mother))
+ (setq sisters (get-char-attribute mother '->subsumptive)))
+ (if (eq (car sisters) next-char)
+ (setq sisters (cons (define-char char-spec) sisters))
+ (setq rest sisters)
+ (while (and (cdr rest)
+ (not (eq (nth 1 rest) next-char)))
+ (setq rest (cdr rest)))
+ (if (null rest)
+ (setq sisters (cons (define-char char-spec) sisters))
+ (setcdr rest (cons (define-char char-spec) (cdr rest)))))
+ (put-char-attribute mother '->subsumptive sisters))))
+
+;;;###autoload
+(defun define-char-after (prev-char char-spec)
+ "Define CHAR-SPEC and insert it after PREV-CHAR."
+ (let (mother sisters rest)
+ (when (and (or (characterp prev-char)
+ (setq prev-char (find-char prev-char)))
+ (setq mother (get-char-attribute prev-char '<-subsumptive))
+ (setq mother (car mother))
+ (setq sisters (get-char-attribute mother '->subsumptive)))
+ (setq rest sisters)
+ (while (and rest
+ (not (eq (car rest) prev-char)))
+ (setq rest (cdr rest)))
+ (if (null rest)
+ (setq sisters (cons (define-char char-spec) sisters))
+ (setcdr rest (cons (define-char char-spec) (cdr rest))))
+ (put-char-attribute mother '->subsumptive sisters))))
+
+
+;;; @ string
+;;;
+
+;;;###autoload
+(defun chise-string< (string1 string2 accessors)
+ (let ((len1 (length string1))
+ (len2 (length string2))
+ len
+ (i 0)
+ c1 c2
+ rest func
+ v1 v2)
+ (setq len (min len1 len2))
+ (catch 'tag
+ (while (< i len)
+ (setq c1 (aref string1 i)
+ c2 (aref string2 i))
+ (setq rest accessors)
+ (while (and rest
+ (setq func (car rest))
+ (setq v1 (funcall func c1)
+ v2 (funcall func c2))
+ (eq v1 v2))
+ (setq rest (cdr rest)))
+ (if v1
+ (if v2
+ (cond ((< v1 v2)
+ (throw 'tag t))
+ ((> v1 v2)
+ (throw 'tag nil)))
+ (throw 'tag nil))
+ (if v2
+ (throw 'tag t)))
+ (setq i (1+ i)))
+ (< len1 len2))))
+
+