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emacs: compat: backport fix for folding long headers when sending

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This backports the fix from emacs master (commit
77bbca8c82f6e553c42abbfafca28f55fc995d00) to notmuch-emacs to wrap
long headers.

This fixes the test introduced in the previous changeset.
This commit is contained in:
Mark Walters 2017-03-04 20:42:14 +00:00 committed by David Bremner
parent a8f91b74e7
commit 95e9c137e1
1 changed files with 24 additions and 4 deletions
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28
emacs/notmuch-compat.el
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@ -1,8 +1,28 @@
;; Compatibility functions for emacs 23 and 24 pre 24.4
;; Compatibility functions for earlier versions of emacs
;; The functions in this file are copied from eamcs 24.4 and are
;; Copyright (C) 1985-1986, 1992, 1994-1995, 1999-2014 Free Software
;; Foundation, Inc.
;; The functions in this file are copied from more modern versions of
;; emacs and are Copyright (C) 1985-1986, 1992, 1994-1995, 1999-2017
;; Free Software Foundation, Inc.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; emacs master has a bugfix for folding long headers when sending
;; messages. Include the fix for earlier versions of emacs. To avoid
;; interfering with gnus we only run the hook when called from
;; notmuch-message-mode.
(declare-function mail-header-fold-field "mail-parse" nil)
(defun notmuch-message--fold-long-headers ()
(when (eq major-mode 'notmuch-message-mode)
(goto-char (point-min))
(while (not (eobp))
(when (and (looking-at "[^:]+:")
(> (- (line-end-position) (point)) 998))
(mail-header-fold-field))
(forward-line 1))))
(unless (fboundp 'message--fold-long-headers)
(add-hook 'message-header-hook 'notmuch-message--fold-long-headers))
(if (fboundp 'setq-local)
(defalias 'notmuch-setq-local 'setq-local)