From: Lars Ingebrigtsen <larsi@gnus.org>
Date: Mon, 30 Jan 2012 22:40:56 +0000 (+0100)
Subject: Don't fold filename="..." parameters when doing rfc2047 encoding
X-Git-Url: https://cgit.sxemacs.org/?p=gnus;a=commitdiff_plain;h=b51a31dcb469849c4d4f0e6c62adfca5d7da4e41

Don't fold filename="..." parameters when doing rfc2047 encoding

See bug#10587 for details.

* rfc2047.el (rfc2047-encode-region): Allow not folding the encoded
words.
(rfc2047-encode-string): Ditto.
(rfc2047-encode-parameter): Don't fold parameters.  Some MUAs do not
understand folded filename="..." parameters, for instance.
---

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 9482eb3b5..9483e4fe8 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,11 @@
 2012-01-30  Lars Ingebrigtsen  <larsi@gnus.org>
 
+	* rfc2047.el (rfc2047-encode-region): Allow not folding the encoded
+	words.
+	(rfc2047-encode-string): Ditto.
+	(rfc2047-encode-parameter): Don't fold parameters.  Some MUAs do not
+	understand folded filename="..." parameters, for instance.
+
 	* nnimap.el (nnimap-wait-for-response): Include the imap server name in
 	the message for greater debuggability.
 
diff --git a/lisp/rfc2047.el b/lisp/rfc2047.el
index a275df770..e881256f3 100644
--- a/lisp/rfc2047.el
+++ b/lisp/rfc2047.el
@@ -362,7 +362,7 @@ The buffer may be narrowed."
     (modify-syntax-entry ?@ "." table)
     table))
 
-(defun rfc2047-encode-region (b e)
+(defun rfc2047-encode-region (b e &optional dont-fold)
   "Encode words in region B to E that need encoding.
 By default, the region is treated as containing RFC2822 addresses.
 Dynamically bind `rfc2047-encoding-type' to change that."
@@ -546,16 +546,17 @@ Dynamically bind `rfc2047-encoding-type' to change that."
 		 (signal (car err) (cdr err))
 	       (error "Invalid data for rfc2047 encoding: %s"
 		      (mm-replace-in-string orig-text "[ \t\n]+" " "))))))))
-    (rfc2047-fold-region b (point))
+    (unless dont-fold
+      (rfc2047-fold-region b (point)))
     (goto-char (point-max))))
 
-(defun rfc2047-encode-string (string)
+(defun rfc2047-encode-string (string &optional dont-fold)
   "Encode words in STRING.
 By default, the string is treated as containing addresses (see
 `rfc2047-encoding-type')."
   (mm-with-multibyte-buffer
     (insert string)
-    (rfc2047-encode-region (point-min) (point-max))
+    (rfc2047-encode-region (point-min) (point-max) dont-fold)
     (buffer-string)))
 
 ;; From RFC 2047:
@@ -850,7 +851,7 @@ This is a substitution for the `rfc2231-encode-string' function, that
 is the standard but many mailers don't support it."
   (let ((rfc2047-encoding-type 'mime)
 	(rfc2047-encode-max-chars nil))
-    (rfc2045-encode-string param (rfc2047-encode-string value))))
+    (rfc2045-encode-string param (rfc2047-encode-string value t))))
 
 ;;;
 ;;; Functions for decoding RFC2047 messages