From 7e1121387a1aacf2c021d3f31424ed5808cb4491 Mon Sep 17 00:00:00 2001
From: teranisi <teranisi>
Date: Mon, 30 Oct 2000 03:25:46 +0000
Subject: [PATCH] 2000-10-07  Yasushi Shoji      <yashi@yashi.com>

	* wl-vars.el (wl-subject-prefix-regexp): New variable.

	* wl-draft.el (wl-draft-strip-subject-re): New function.

	* wl-draft.el (wl-draft-reply): Use it.
---
 wl/ChangeLog   |    8 ++++++++
 wl/wl-draft.el |   15 ++++++++-------
 wl/wl-vars.el  |    6 ++++++
 3 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/wl/ChangeLog b/wl/ChangeLog
index 6be9471..83bd518 100644
--- a/wl/ChangeLog
+++ b/wl/ChangeLog
@@ -1,3 +1,11 @@
+2000-10-07  Yasushi Shoji      <yashi@yashi.com>
+
+	* wl-vars.el (wl-subject-prefix-regexp): New variable.
+
+	* wl-draft.el (wl-draft-strip-subject-re): New function.
+
+	* wl-draft.el (wl-draft-reply): Use it.
+
 2000-10-30  Yuuichi Teranishi  <teranisi@gohome.org>
 
 	* wl-message.el (wl-mmelmo-message-redisplay): Use
diff --git a/wl/wl-draft.el b/wl/wl-draft.el
index f8db10f..1810203 100644
--- a/wl/wl-draft.el
+++ b/wl/wl-draft.el
@@ -275,6 +275,12 @@ the `wl-smtp-features' variable."
   (wl-draft-insert-message)
   (mail-position-on-field "To"))
 
+(defun wl-draft-strip-subject-re (subject)
+  "Remove \"Re:\" from subject lines. Shamelessly copied from Gnus"
+  (if (string-match wl-subject-prefix-regexp subject)
+      (substring subject (match-end 0))
+    subject))
+
 (defun wl-draft-reply (buf no-arg summary-buf)
   ""
 ;;;(save-excursion
@@ -365,13 +371,8 @@ the `wl-smtp-features' variable."
 			(nth 1 addr))))
 	     cc)))
     (and subject wl-reply-subject-prefix
-	 (let ((case-fold-search t))
-	   (not
-	    (equal
-	     (string-match (regexp-quote wl-reply-subject-prefix)
-			   subject)
-	     0)))
-	 (setq subject (concat wl-reply-subject-prefix subject)))
+	 (setq subject (concat wl-reply-subject-prefix
+                               (wl-draft-strip-subject-re subject))))
     (setq in-reply-to (std11-field-body "Message-Id"))
     (setq references (nconc
 		      (std11-field-bodies '("References" "In-Reply-To"))
diff --git a/wl/wl-vars.el b/wl/wl-vars.el
index e87d8a2..ce892a5 100644
--- a/wl/wl-vars.el
+++ b/wl/wl-vars.el
@@ -1147,6 +1147,12 @@ Each elements are regexp of field-name."
   :group 'wl-pref
   :group 'wl-draft)
 
+(defcustom wl-subject-prefix-regexp "^[ \t]*\\([Rr][Ee][:>][ \t]*\\)*[ \t]*"
+  "*Regexp matching \"Re: \" in the subject line."
+  :type 'regexp
+  :group 'wl-draft
+  :group 'wl-pref)
+
 (defcustom wl-folder-many-unsync-threshold 70
   "*Folders which contains messages more than this number are highlighted
 with wl-highlight-folder-many-face."
-- 
1.7.10.4