((<= ?0 chr) (- chr ?0))
))
-(defun quoted-printable-decode-string (string)
- "Decode STRING which is encoded in quoted-printable, and return the result."
- (let (q h l)
- (mapconcat (function
- (lambda (chr)
- (cond ((eq chr ?=)
- (setq q t)
- "")
- (q (setq h (quoted-printable-hex-char-to-num chr))
- (setq q nil)
- "")
- (h (setq l (quoted-printable-hex-char-to-num chr))
- (prog1
- (char-to-string (logior (ash h 4) l))
- (setq h nil)
- )
- )
- (t (char-to-string chr))
- )))
- string "")))
-
(defun quoted-printable-internal-decode-region (start end)
(save-excursion
(save-restriction
(narrow-to-region start end)
(goto-char (point-min))
- (while (re-search-forward "=\n" nil t)
- (replace-match "")
- )
- (goto-char (point-min))
- (let (b e str)
- (while (re-search-forward quoted-printable-octet-regexp nil t)
- (setq b (match-beginning 0))
- (setq e (match-end 0))
- (setq str (buffer-substring b e))
- (delete-region b e)
- (insert (string-as-multibyte (quoted-printable-decode-string str)))
- ))
- )))
-
+ (while (search-forward "=" nil t)
+ (let ((beg (match-beginning 0)))
+ (cond ((looking-at "\n")
+ (delete-region beg (match-end 0))
+ )
+ ((looking-at
+ `,(concat "[" quoted-printable-hex-chars
+ "][" quoted-printable-hex-chars "]"))
+ (let* ((end (match-end 0))
+ (hex (buffer-substring (match-beginning 0) end)))
+ (delete-region beg end)
+ (insert
+ (logior
+ (ash (quoted-printable-hex-char-to-num (aref hex 0)) 4)
+ (quoted-printable-hex-char-to-num (aref hex 1))))
+ ))
+ (t
+ ;; invalid
+ ))
+ )))))
(defvar quoted-printable-external-decoder '("mmencode" "-q" "-u")
"*list of quoted-printable decoder program name and its arguments.")
(quoted-printable-internal-decode-region start end)
))
+(defun quoted-printable-decode-string (string)
+ "Decode STRING which is encoded in quoted-printable, and return the result."
+ (with-temp-buffer
+ (insert string)
+ (quoted-printable-decode-region (point-min)(point-max))
+ (buffer-string)))
+
(defvar quoted-printable-external-decoder-option-to-specify-file '("-o")
"*list of options of quoted-printable decoder program to specify file.")