Variable: fill-flowed-display-column

fill-flowed-display-column is a customizable variable defined in flow-fill.el.gz.

Value

fill-column

Documentation

Column beyond which format=flowed lines are wrapped, when displayed.

This can be a Lisp expression or an integer.

This variable was added, or its default value changed, in Emacs 22.1.

Source Code

;; Defined in /usr/src/emacs/lisp/mail/flow-fill.el.gz
;;; flow-fill.el --- interpret RFC2646 "flowed" text  -*- lexical-binding:t -*-

;; Copyright (C) 2000-2025 Free Software Foundation, Inc.

;; Author: Simon Josefsson <jas@pdc.kth.se>
;; Keywords: mail

;; This file is part of GNU Emacs.

;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;; This implement decoding of RFC2646 formatted text, including the
;; quoted-depth wins rules.

;; Theory of operation: search for lines ending with SPC, save quote
;; length of line, remove SPC and concatenate line with the following
;; line if quote length of following line matches current line.

;; When no further concatenations are possible, we've found a
;; paragraph and we let `fill-region' fill the long line into several
;; lines with the quote prefix as `fill-prefix'.

;; Todo: implement basic `fill-region'

;;; History:

;; 2000-02-17  posted on ding mailing list
;; 2000-02-19  use `point-at-{b,e}ol' in XEmacs
;; 2000-03-11  no compile warnings for point-at-bol stuff
;; 2000-03-26  committed to gnus cvs
;; 2000-10-23  don't flow "-- " lines, make "quote-depth wins" rule
;;             work when first line is at level 0.
;; 2002-01-12  probably incomplete encoding support
;; 2003-12-08  started working on test harness.

;;; Code:


(defcustom fill-flowed-display-column 'fill-column
  "Column beyond which format=flowed lines are wrapped, when displayed.
This can be a Lisp expression or an integer."
  :version "22.1"
  :group 'mime-display
  :type '(choice (const :tag "Standard `fill-column'" fill-column)
		 (const :tag "Fit Window" (- (window-width) 5))
		 (sexp)
		 (integer)))