(eval-when-compile
(defmacro hex-char-to-num (chr)
- `(let ((chr ,chr))
- (cond
- ((and (<= ?a chr)(<= chr ?f)) (+ (- chr ?a) 10))
- ((and (<= ?A chr)(<= chr ?F)) (+ (- chr ?A) 10))
- ((and (<= ?0 chr)(<= chr ?9)) (- chr ?0))
- (t (error "Invalid hexadecimal digit `%c'" chr)))))
+ (` (let ((chr (, chr)))
+ (cond
+ ((and (<= ?a chr)(<= chr ?f)) (+ (- chr ?a) 10))
+ ((and (<= ?A chr)(<= chr ?F)) (+ (- chr ?A) 10))
+ ((and (<= ?0 chr)(<= chr ?9)) (- chr ?0))
+ (t (error "Invalid hexadecimal digit `%c'" chr))))))
(defmacro num-to-hex-char (num)
- `(aref "0123456789abcdef" ,num)))
+ (` (aref "0123456789abcdef" (, num)))))
(defun decode-hex-string (string)
"Decode hexadecimal STRING to octet string."
(dst (make-string (/ len 2) 0))
(idx 0)(pos 0))
(while (< pos len)
- ;; logior and lsh are not byte-coded.
- ;; (aset dst idx (logior (lsh (hex-char-to-num (aref string pos)) 4)
- ;; (hex-char-to-num (aref string (1+ pos)))))
+;;; logior and lsh are not byte-coded.
+;;; (aset dst idx (logior (lsh (hex-char-to-num (aref string pos)) 4)
+;;; (hex-char-to-num (aref string (1+ pos)))))
(aset dst idx (+ (* (hex-char-to-num (aref string pos)) 16)
(hex-char-to-num (aref string (1+ pos)))))
(setq idx (1+ idx)
(dst (make-string (* len 2) 0))
(idx 0)(pos 0))
(while (< pos len)
- ;; logand and lsh are not byte-coded.
- ;; (aset dst idx (num-to-hex-char (logand (lsh (aref string pos) -4) 15)))
+;;; logand and lsh are not byte-coded.
+;;; (aset dst idx (num-to-hex-char (logand (lsh (aref string pos) -4) 15)))
(aset dst idx (num-to-hex-char (/ (aref string pos) 16)))
(setq idx (1+ idx))
- ;; (aset dst idx (num-to-hex-char (logand (aref string pos) 15)))
+;;; (aset dst idx (num-to-hex-char (logand (aref string pos) 15)))
(aset dst idx (num-to-hex-char (% (aref string pos) 16)))
(setq idx (1+ idx)
pos (1+ pos)))