Function: mm-decode-content-transfer-encoding

mm-decode-content-transfer-encoding is a byte-compiled function defined in mm-bodies.el.gz.

Signature

(mm-decode-content-transfer-encoding ENCODING &optional TYPE)

Documentation

Decodes buffer encoded with ENCODING, returning success status.

If TYPE is text/plain CRLF->LF translation may occur.

Source Code

;; Defined in /usr/src/emacs/lisp/gnus/mm-bodies.el.gz
;;;
;;; Functions for decoding
;;;

(defun mm-decode-content-transfer-encoding (encoding &optional type)
  "Decodes buffer encoded with ENCODING, returning success status.
If TYPE is `text/plain' CRLF->LF translation may occur."
  (prog1
      (condition-case error
	  (cond
	   ((eq encoding 'quoted-printable)
	    (quoted-printable-decode-region (point-min) (point-max))
	    t)
	   ((eq encoding 'base64)
	    ;; MIME says to ignore any non-base64 junk
	    (base64-decode-region (point-min) (point-max) nil t))
	   ((memq encoding '(nil 7bit 8bit binary))
	    ;; Do nothing.
	    t)
	   ((memq encoding '(x-uuencode x-uue))
	    (require 'mm-uu)
	    (funcall mm-uu-decode-function (point-min) (point-max))
	    t)
	   ((eq encoding 'x-binhex)
	    (require 'mm-uu)
	    (funcall mm-uu-binhex-decode-function (point-min) (point-max))
	    t)
	   ((eq encoding 'x-yenc)
	    (require 'mm-uu)
	    (funcall mm-uu-yenc-decode-function (point-min) (point-max))
	    )
	   ((functionp encoding)
	    (funcall encoding (point-min) (point-max))
	    t)
	   (t
	    (message "Unknown encoding %s; defaulting to 8bit" encoding)))
	(error
	 (message "Error while decoding: %s" error)
	 nil))
    (when (and
	   type
	   (memq encoding '(base64 x-uuencode x-uue x-binhex x-yenc))
	   (string-match "\\`text/" type))
      (goto-char (point-min))
      (while (search-forward "\r\n" nil t)
	(replace-match "\n" t t)))))