Update copyright.

[gnus] / lisp / rfc2231.el

diff --git a/lisp/rfc2231.el b/lisp/rfc2231.el
index bc13517..14a9186 100644 (file)
--- a/lisp/rfc2231.el
+++ b/lisp/rfc2231.el
@@ -1,5 +1,7 @@
 ;;; rfc2231.el --- Functions for decoding rfc2231 headers
-;; Copyright (C) 1998,99 Free Software Foundation, Inc.
+
+;; Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2005
+;;        Free Software Foundation, Inc.
 
 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
 ;; This file is part of GNU Emacs.
@@ -16,8 +18,8 @@
 
 ;; You should have received a copy of the GNU General Public License
 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
 
 ;;; Commentary:
 
@@ -26,6 +28,9 @@
 (eval-when-compile (require 'cl))
 (require 'ietf-drums)
 (require 'rfc2047)
+(autoload 'mm-encode-body "mm-bodies")
+(autoload 'mail-header-remove-whitespace "mail-parse")
+(autoload 'mail-header-remove-comments "mail-parse")
 
 (defun rfc2231-get-value (ct attribute)
   "Return the value of ATTRIBUTE from CT."
@@ -47,11 +52,14 @@ The list will be on the form
          (prev-value "")
          display-name mailbox c display-string parameters
          attribute value type subtype number encoded
-         prev-attribute)
+         prev-attribute prev-encoded)
       (ietf-drums-init (mail-header-remove-whitespace
                        (mail-header-remove-comments string)))
       (let ((table (copy-syntax-table ietf-drums-syntax-table)))
        (modify-syntax-entry ?\' "w" table)
+       (modify-syntax-entry ?* " " table)
+       (modify-syntax-entry ?\; " " table)
+       (modify-syntax-entry ?= " " table)
        ;; The following isn't valid, but one should be liberal
        ;; in what one receives.
        (modify-syntax-entry ?\: "w" table)
@@ -80,7 +88,6 @@ The list will be on the form
                         (point) (progn (forward-sexp 1) (point))))))
              (error "Invalid header: %s" string))
            (setq c (char-after))
-           (setq encoded nil)
            (when (eq c ?*)
              (forward-char 1)
              (setq c (char-after))
@@ -99,9 +106,14 @@ The list will be on the form
            ;; See if we have any previous continuations.
            (when (and prev-attribute
                       (not (eq prev-attribute attribute)))
-             (push (cons prev-attribute prev-value) parameters)
+             (push (cons prev-attribute
+                         (if prev-encoded
+                             (rfc2231-decode-encoded-string prev-value)
+                           prev-value))
+                   parameters)
              (setq prev-attribute nil
-                   prev-value ""))
+                   prev-value ""
+                   prev-encoded nil))
            (unless (eq c ?=)
              (error "Invalid header: %s" string))
            (forward-char 1)
@@ -111,22 +123,40 @@ The list will be on the form
              (setq value
                    (buffer-substring (1+ (point))
                                      (progn (forward-sexp 1) (1- (point))))))
-            ((and (memq c ttoken)
+            ((and (or (memq c ttoken)
+                      (> c ?\177)) ;; EXTENSION: Support non-ascii chars.
                   (not (memq c stoken)))
              (setq value (buffer-substring
-                          (point) (progn (forward-sexp 1) (point)))))
+                          (point)
+                          (progn
+                            (forward-sexp)
+                            ;; We might not have reached at the end of
+                            ;; the value because of non-ascii chars,
+                            ;; so we should jump over them if any.
+                            (while (and (not (eobp))
+                                        (> (char-after) ?\177))
+                              (forward-char 1)
+                              (forward-sexp))
+                            (point)))))
             (t
              (error "Invalid header: %s" string)))
-           (when encoded
-             (setq value (rfc2231-decode-encoded-string value)))
            (if number
                (setq prev-attribute attribute
-                     prev-value (concat prev-value value))
-             (push (cons attribute value) parameters))))
+                     prev-value (concat prev-value value)
+                     prev-encoded encoded)
+             (push (cons attribute
+                         (if encoded
+                             (rfc2231-decode-encoded-string value)
+                           value))
+                   parameters))))
 
        ;; Take care of any final continuations.
        (when prev-attribute
-         (push (cons prev-attribute prev-value) parameters))
+         (push (cons prev-attribute
+                     (if prev-encoded
+                         (rfc2231-decode-encoded-string prev-value)
+                       prev-value))
+               parameters))
 
        (when type
          `(,type ,@(nreverse parameters)))))))
@@ -149,9 +179,9 @@ These look like \"us-ascii'en-us'This%20is%20%2A%2A%2Afun%2A%2A%2A\"."
       ;; Encode using the charset, if any.
       (when (and (mm-multibyte-p)
                 (> (length elems) 1)
-                (not (equal (intern (car elems)) 'us-ascii)))
+                (not (equal (intern (downcase (car elems))) 'us-ascii)))
        (mm-decode-coding-region (point-min) (point-max)
-                                (intern (car elems))))
+                                (intern (downcase (car elems)))))
       (buffer-string))))
 
 (defun rfc2231-encode-string (param value)
@@ -183,7 +213,7 @@ These look like \"us-ascii'en-us'This%20is%20%2A%2A%2Afun%2A%2A%2A\"."
        (goto-char (point-min))
        (while (not (eobp))
          (when (> (current-column) 60)
-           (insert "\n")
+           (insert ";\n")
            (setq broken t))
          (if (or (not (memq (following-char) ascii))
                  (memq (following-char) control)
@@ -195,12 +225,13 @@ These look like \"us-ascii'en-us'This%20is%20%2A%2A%2Afun%2A%2A%2A\"."
                (delete-char 1))
            (forward-char 1)))
        (goto-char (point-min))
-       (insert (or (symbol-name charset) "ascii") "''")
+       (insert (symbol-name (or charset 'us-ascii)) "''")
        (goto-char (point-min))
        (if (not broken)
            (insert param "*=")
          (while (not (eobp))
-           (insert param "*" (format "%d" (incf num)) "*=")
+           (insert (if (>= num 0) " " "\n ")
+                   param "*" (format "%d" (incf num)) "*=")
            (forward-line 1))))
        (spacep
        (goto-char (point-min))
@@ -214,4 +245,5 @@ These look like \"us-ascii'en-us'This%20is%20%2A%2A%2Afun%2A%2A%2A\"."
 
 (provide 'rfc2231)
 
+;;; arch-tag: c3ab751d-d108-406a-b301-68882ad8cd63
 ;;; rfc2231.el ends here