;; --------- ;;
;; han2zen.l ;;
;; --------- ;;

(defun hankaku->zenkaku-sub (code)
  (setq code (+ code code))
  (substring 
   "¡¡¡ª¡É¡ô¡ð¡ó¡õ¡Ç¡Ê¡Ë¡ö¡Ü¡¤¡Ý¡¥¡¿£°£±£²£³£´£µ£¶£·£¸£¹¡§¡¨¡ã¡á¡ä¡©¡÷£Á£Â£Ã£Ä£Å£Æ£Ç£È£É£Ê£Ë£Ì£Í£Î£Ï£Ð£Ñ£Ò£Ó£Ô£Õ£Ö£×£Ø£Ù£Ú¡Î¡ï¡Ï¡°¡²£à£á£â£ã£ä£å£æ£ç£è£é£ê£ë£ì£í£î£ï£ð£ñ£ò£ó£ô£õ£ö£÷£ø£ù£ú¡Ð¡Ã¡Ñ¡±"
   (- code 64)
   (- code 62)))

(defun zenkaku-string (str)
  (let ((len (string-length str))
	(ret ""))
    (do ((i 0 (1+ i)))
	((>= i len) ret)
	(setq ret
	      (string-append ret
			     (cond ((= (logand (sref str i) 128) 128)
				    (setq i (1+ i))
				    (substring str (1- i) (1+ i)))
				   (t 
				    (hankaku->zenkaku-sub (sref str i)))))))))
	
(defun num->string (num)
  (lets ((string (make-string 256))
	 (stream (string-stream string))
	 (standard-output (outopen stream)))
    (princ num)
    (substring string 0 (string-stream-index standard-output))))