From c9cab7ecf8ec840bf90a2cce537b90097abc3690 Mon Sep 17 00:00:00 2001
From: shuhei-k <shuhei-k>
Date: Sat, 30 May 1998 14:56:02 +0000
Subject: [PATCH] (gnus-get-newsgroup-headers): Save original value of "From:"
 and "Subject:" fields to `raw-text' property.
 (gnus-nov-field): Ditto.

---
 lisp/gnus-sum.el |   46 ++++++++++++++++++++++++++++++++++++----------
 1 file changed, 36 insertions(+), 10 deletions(-)

diff --git a/lisp/gnus-sum.el b/lisp/gnus-sum.el
index e665fcb..829740a 100644
--- a/lisp/gnus-sum.el
+++ b/lisp/gnus-sum.el
@@ -4241,7 +4241,8 @@ The resulting hash table is returned, or nil if no Xrefs were found."
       (subst-char-in-region (point-min) (point-max) ?\t ?  t)
       (gnus-run-hooks 'gnus-parse-headers-hook)
       (let ((case-fold-search t)
-	    in-reply-to header p lines)
+	    in-reply-to header p lines
+	    rawtext decoded)
 	(goto-char (point-min))
 	;; Search to the beginning of the next header.	Error messages
 	;; do not begin with 2 or 3.
@@ -4270,15 +4271,27 @@ The resulting hash table is returned, or nil if no Xrefs were found."
 	    (progn
 	      (goto-char p)
 	      (if (search-forward "\nsubject: " nil t)
-		  (funcall
-		   gnus-unstructured-field-decoder (nnheader-header-value))
+		  (progn
+		    (setq rawtext (nnheader-header-value)
+			  decoded (funcall
+				   gnus-unstructured-field-decoder rawtext))
+		    (if (string-equal rawtext decoded)
+			rawtext
+		      (put-text-property 0 (length decoded) 'raw-text rawtext decoded)
+		      decoded))
 		"(none)"))
 	    ;; From.
 	    (progn
 	      (goto-char p)
 	      (if (search-forward "\nfrom: " nil t)
-		  (funcall
-		   gnus-structured-field-decoder (nnheader-header-value))
+		  (progn
+		    (setq rawtext (nnheader-header-value)
+			  decoded (funcall
+				   gnus-structured-field-decoder rawtext))
+		    (if (string-equal rawtext decoded)
+			rawtext
+		      (put-text-property 0 (length decoded) 'raw-text rawtext decoded)
+		      decoded))
 		"(nobody)"))
 	    ;; Date.
 	    (progn
@@ -4416,7 +4429,8 @@ The resulting hash table is returned, or nil if no Xrefs were found."
 (defun gnus-nov-parse-line (number dependencies &optional force-new)
   (let ((eol (gnus-point-at-eol))
 	(buffer (current-buffer))
-	header ref id id-dep ref-dep)
+	header ref id id-dep ref-dep
+	rawtext decoded)
 
     ;; overview: [num subject from date id refs chars lines misc]
     (unwind-protect
@@ -4428,10 +4442,22 @@ The resulting hash table is returned, or nil if no Xrefs were found."
 	  (setq header
 		(vector
 		 number			; number
-		 (funcall
-		  gnus-unstructured-field-decoder (gnus-nov-field)) ; subject
-		 (funcall
-		  gnus-structured-field-decoder (gnus-nov-field)) ; from
+		 (progn
+		   (setq rawtext (gnus-nov-field) ; subject
+			 decoded (funcall
+				  gnus-unstructured-field-decoder rawtext))
+		   (if (string-equal rawtext decoded)
+		       rawtext
+		     (put-text-property 0 (length decoded) 'raw-text rawtext decoded)
+		     decoded))
+		 (progn
+		   (setq rawtext (gnus-nov-field) ; from
+			 decoded (funcall
+				  gnus-structured-field-decoder rawtext))
+		   (if (string-equal rawtext decoded)
+		       rawtext
+		     (put-text-property 0 (length decoded) 'raw-text rawtext decoded)
+		     decoded))
 		 (gnus-nov-field)	; date
 		 (setq id (or (gnus-nov-field)
 			      (nnheader-generate-fake-message-id))) ; id
-- 
1.7.10.4