Strange behaviour of auto-fill

Strange behaviour of auto-fill

[michael-franzese]

I am trying to set "auto-fill", with some tools to change "on-off" behaviour.

Things get very confusing.  When I comment out "(setq-default auto-fill-function 'do-auto-fill)", "auto-fill-mode" will still break comments even though "break-line" is "0"
and one sets "(auto-fill-mode 0)".



(setq-default auto-fill-function 'do-auto-fill)
(defvar break-line 0)

(defun break-line-ddd ()
  "Breaks long lines using auto-fill tool."
  (interactive)

  (pcase break-line
    ((or 'nil 0)
       (setq comment-auto-fill-only-comments nil)
       (auto-fill-mode 0)
       (message "%s %s"
		"Disable: Break line;  " break-line)
       (setq break-line 1))
    (1
       (setq fill-column 72)
       (setq comment-auto-fill-only-comments t)
       (auto-fill-mode 1)
       (message "%s" "Enable: Break only comments")
       (setq break-line 2))
    (_
       (setq comment-auto-fill-only-comments nil)
       (auto-fill-mode 1)
       (message "%s" "Enable: Break all long lines")
       (setq break-line 0)) ))

(defun break-line-set ()
  "Breaks long lines using auto-fill."
  (break-line-ddd)
  (global-set-key (kbd "H-b") #'break-line-ddd) )

(break-line-set)

Re: Strange behaviour of auto-fill

[Christopher Dimech]

Have had a go months ago on that.  It totally defeated me and gave
up on it.

> Sent: Saturday, April 24, 2021 at 9:42 AM
> From: michael-franzese@gmx.com
> To: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> Subject: Strange behaviour of auto-fill
>
> I am trying to set "auto-fill", with some tools to change "on-off" behaviour.
>
> Things get very confusing.  When I comment out "(setq-default auto-fill-function 'do-auto-fill)", "auto-fill-mode" will still break comments even though "break-line" is "0"
> and one sets "(auto-fill-mode 0)".
>
>
>
> (setq-default auto-fill-function 'do-auto-fill)
> (defvar break-line 0)
>
> (defun break-line-ddd ()
>   "Breaks long lines using auto-fill tool."
>   (interactive)
>
>   (pcase break-line
>     ((or 'nil 0)
>        (setq comment-auto-fill-only-comments nil)
>        (auto-fill-mode 0)
>        (message "%s %s"
> 		"Disable: Break line;  " break-line)
>        (setq break-line 1))
>     (1
>        (setq fill-column 72)
>        (setq comment-auto-fill-only-comments t)
>        (auto-fill-mode 1)
>        (message "%s" "Enable: Break only comments")
>        (setq break-line 2))
>     (_
>        (setq comment-auto-fill-only-comments nil)
>        (auto-fill-mode 1)
>        (message "%s" "Enable: Break all long lines")
>        (setq break-line 0)) ))
>
> (defun break-line-set ()
>   "Breaks long lines using auto-fill."
>   (break-line-ddd)
>   (global-set-key (kbd "H-b") #'break-line-ddd) )
>
> (break-line-set)
>
>
>

Re: Strange behaviour of auto-fill

[Christopher Dimech]

Have had another go and noticed that calling

  (turn-off-auto-fill)

will not break lines if the following is present

  (setq-default auto-fill-function 'do-auto-fill)

My impression would be for developers to take a closer look at the
code, so that it's use would be simplified.  Or perhaps some good
examples on how to use it, as it does not look so clear to me.

> Sent: Saturday, April 24, 2021 at 9:42 AM
> From: michael-franzese@gmx.com
> To: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> Subject: Strange behaviour of auto-fill
>
> I am trying to set "auto-fill", with some tools to change "on-off" behaviour.
>
> Things get very confusing.  When I comment out "(setq-default auto-fill-function 'do-auto-fill)", "auto-fill-mode" will still break comments even though "break-line" is "0"
> and one sets "(auto-fill-mode 0)".
>
>
>
> (setq-default auto-fill-function 'do-auto-fill)
> (defvar break-line 0)
>
> (defun break-line-ddd ()
>   "Breaks long lines using auto-fill tool."
>   (interactive)
>
>   (pcase break-line
>     ((or 'nil 0)
>        (setq comment-auto-fill-only-comments nil)
>        (auto-fill-mode 0)
>        (message "%s %s"
> 		"Disable: Break line;  " break-line)
>        (setq break-line 1))
>     (1
>        (setq fill-column 72)
>        (setq comment-auto-fill-only-comments t)
>        (auto-fill-mode 1)
>        (message "%s" "Enable: Break only comments")
>        (setq break-line 2))
>     (_
>        (setq comment-auto-fill-only-comments nil)
>        (auto-fill-mode 1)
>        (message "%s" "Enable: Break all long lines")
>        (setq break-line 0)) ))
>
> (defun break-line-set ()
>   "Breaks long lines using auto-fill."
>   (break-line-ddd)
>   (global-set-key (kbd "H-b") #'break-line-ddd) )
>
> (break-line-set)
>
>
>

Re: Strange behaviour of auto-fill

[michael-franzese]

Actually, when I call (turn-off-auto-fill) after calling
(setq-default auto-fill-function 'do-auto-fill) does tell
turn the mode off.

> Sent: Saturday, April 24, 2021 at 11:21 AM
> From: "Christopher Dimech" <dimech@gmx.com>
> To: michael-franzese@gmx.com
> Cc: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> Subject: Re: Strange behaviour of auto-fill
>
>
> Have had another go and noticed that calling
>
>   (turn-off-auto-fill)
>
> will not break lines if the following is present
>
>   (setq-default auto-fill-function 'do-auto-fill)
>
> My impression would be for developers to take a closer look at the
> code, so that it's use would be simplified.  Or perhaps some good
> examples on how to use it, as it does not look so clear to me.
>
> > Sent: Saturday, April 24, 2021 at 9:42 AM
> > From: michael-franzese@gmx.com
> > To: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> > Subject: Strange behaviour of auto-fill
> >
> > I am trying to set "auto-fill", with some tools to change "on-off" behaviour.
> >
> > Things get very confusing.  When I comment out "(setq-default auto-fill-function 'do-auto-fill)", "auto-fill-mode" will still break comments even though "break-line" is "0"
> > and one sets "(auto-fill-mode 0)".
> >
> >
> >
> > (setq-default auto-fill-function 'do-auto-fill)
> > (defvar break-line 0)
> >
> > (defun break-line-ddd ()
> >   "Breaks long lines using auto-fill tool."
> >   (interactive)
> >
> >   (pcase break-line
> >     ((or 'nil 0)
> >        (setq comment-auto-fill-only-comments nil)
> >        (auto-fill-mode 0)
> >        (message "%s %s"
> > 		"Disable: Break line;  " break-line)
> >        (setq break-line 1))
> >     (1
> >        (setq fill-column 72)
> >        (setq comment-auto-fill-only-comments t)
> >        (auto-fill-mode 1)
> >        (message "%s" "Enable: Break only comments")
> >        (setq break-line 2))
> >     (_
> >        (setq comment-auto-fill-only-comments nil)
> >        (auto-fill-mode 1)
> >        (message "%s" "Enable: Break all long lines")
> >        (setq break-line 0)) ))
> >
> > (defun break-line-set ()
> >   "Breaks long lines using auto-fill."
> >   (break-line-ddd)
> >   (global-set-key (kbd "H-b") #'break-line-ddd) )
> >
> > (break-line-set)
> >
> >
> >
>

Re: Strange behaviour of auto-fill

[Christopher Dimech]

You are right, I meant to say that turn-off-auto-fill
does not respond as it should when you use
(setq-default auto-fill-function 'do-auto-fill)

> Sent: Saturday, April 24, 2021 at 11:23 AM
> From: michael-franzese@gmx.com
> To: "Christopher Dimech" <dimech@gmx.com>
> Cc: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> Subject: Re: Strange behaviour of auto-fill
>
> Actually, when I call (turn-off-auto-fill) after calling
> (setq-default auto-fill-function 'do-auto-fill) does tell
> turn the mode off.
>
> > Sent: Saturday, April 24, 2021 at 11:21 AM
> > From: "Christopher Dimech" <dimech@gmx.com>
> > To: michael-franzese@gmx.com
> > Cc: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> > Subject: Re: Strange behaviour of auto-fill
> >
> >
> > Have had another go and noticed that calling
> >
> >   (turn-off-auto-fill)
> >
> > will not break lines if the following is present
> >
> >   (setq-default auto-fill-function 'do-auto-fill)
> >
> > My impression would be for developers to take a closer look at the
> > code, so that it's use would be simplified.  Or perhaps some good
> > examples on how to use it, as it does not look so clear to me.
> >
> > > Sent: Saturday, April 24, 2021 at 9:42 AM
> > > From: michael-franzese@gmx.com
> > > To: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> > > Subject: Strange behaviour of auto-fill
> > >
> > > I am trying to set "auto-fill", with some tools to change "on-off" behaviour.
> > >
> > > Things get very confusing.  When I comment out "(setq-default auto-fill-function 'do-auto-fill)", "auto-fill-mode" will still break comments even though "break-line" is "0"
> > > and one sets "(auto-fill-mode 0)".
> > >
> > >
> > >
> > > (setq-default auto-fill-function 'do-auto-fill)
> > > (defvar break-line 0)
> > >
> > > (defun break-line-ddd ()
> > >   "Breaks long lines using auto-fill tool."
> > >   (interactive)
> > >
> > >   (pcase break-line
> > >     ((or 'nil 0)
> > >        (setq comment-auto-fill-only-comments nil)
> > >        (auto-fill-mode 0)
> > >        (message "%s %s"
> > > 		"Disable: Break line;  " break-line)
> > >        (setq break-line 1))
> > >     (1
> > >        (setq fill-column 72)
> > >        (setq comment-auto-fill-only-comments t)
> > >        (auto-fill-mode 1)
> > >        (message "%s" "Enable: Break only comments")
> > >        (setq break-line 2))
> > >     (_
> > >        (setq comment-auto-fill-only-comments nil)
> > >        (auto-fill-mode 1)
> > >        (message "%s" "Enable: Break all long lines")
> > >        (setq break-line 0)) ))
> > >
> > > (defun break-line-set ()
> > >   "Breaks long lines using auto-fill."
> > >   (break-line-ddd)
> > >   (global-set-key (kbd "H-b") #'break-line-ddd) )
> > >
> > > (break-line-set)
> > >
> > >
> > >
> >
>

Re: Strange behaviour of auto-fill

[michael-franzese]

I am trying to write a workaround, but am struggling with elisp.
Would like to have a function that sets the order.  But do not
know how to make string variables, then use pcase.

(defun break-line-order ()
   (setq n )
   (pcase n
      ("off-on"
          ;; initially do not break lines
          (setq break-line 0))
      ("on-off"
          ;; initially break lines
          (setq break-line 1)
          (setq-default auto-fill-function 'do-auto-fill)) ))



> Sent: Saturday, April 24, 2021 at 11:23 AM
> From: michael-franzese@gmx.com
> To: "Christopher Dimech" <dimech@gmx.com>
> Cc: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> Subject: Re: Strange behaviour of auto-fill
>
> Actually, when I call (turn-off-auto-fill) after calling
> (setq-default auto-fill-function 'do-auto-fill) does tell
> turn the mode off.
>
> > Sent: Saturday, April 24, 2021 at 11:21 AM
> > From: "Christopher Dimech" <dimech@gmx.com>
> > To: michael-franzese@gmx.com
> > Cc: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> > Subject: Re: Strange behaviour of auto-fill
> >
> >
> > Have had another go and noticed that calling
> >
> >   (turn-off-auto-fill)
> >
> > will not break lines if the following is present
> >
> >   (setq-default auto-fill-function 'do-auto-fill)
> >
> > My impression would be for developers to take a closer look at the
> > code, so that it's use would be simplified.  Or perhaps some good
> > examples on how to use it, as it does not look so clear to me.
> >
> > > Sent: Saturday, April 24, 2021 at 9:42 AM
> > > From: michael-franzese@gmx.com
> > > To: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> > > Subject: Strange behaviour of auto-fill
> > >
> > > I am trying to set "auto-fill", with some tools to change "on-off" behaviour.
> > >
> > > Things get very confusing.  When I comment out "(setq-default auto-fill-function 'do-auto-fill)", "auto-fill-mode" will still break comments even though "break-line" is "0"
> > > and one sets "(auto-fill-mode 0)".
> > >
> > >
> > >
> > > (setq-default auto-fill-function 'do-auto-fill)
> > > (defvar break-line 0)
> > >
> > > (defun break-line-ddd ()
> > >   "Breaks long lines using auto-fill tool."
> > >   (interactive)
> > >
> > >   (pcase break-line
> > >     ((or 'nil 0)
> > >        (setq comment-auto-fill-only-comments nil)
> > >        (auto-fill-mode 0)
> > >        (message "%s %s"
> > > 		"Disable: Break line;  " break-line)
> > >        (setq break-line 1))
> > >     (1
> > >        (setq fill-column 72)
> > >        (setq comment-auto-fill-only-comments t)
> > >        (auto-fill-mode 1)
> > >        (message "%s" "Enable: Break only comments")
> > >        (setq break-line 2))
> > >     (_
> > >        (setq comment-auto-fill-only-comments nil)
> > >        (auto-fill-mode 1)
> > >        (message "%s" "Enable: Break all long lines")
> > >        (setq break-line 0)) ))
> > >
> > > (defun break-line-set ()
> > >   "Breaks long lines using auto-fill."
> > >   (break-line-ddd)
> > >   (global-set-key (kbd "H-b") #'break-line-ddd) )
> > >
> > > (break-line-set)
> > >
> > >
> > >
> >
>

Re: Strange behaviour of auto-fill

[michael-franzese]

Have tried to do something but gets me

error: Unknown string-match pattern: (string-match "on-off" s)

-----

(defun break-line-order ()
   (setq order "off-on")
   (pcase
      ((string-match "off-on" s)
          (setq break-line 0)
          (message "%s" "break-line-order: off-on"))
      ((string-match "on-off" s)
          (setq break-line 1)
          (setq-default auto-fill-function 'do-auto-fill)
	  (message "%s" "break-line-order: on-off")) ))

(break-line-order)





> Sent: Saturday, April 24, 2021 at 11:23 AM
> From: michael-franzese@gmx.com
> To: "Christopher Dimech" <dimech@gmx.com>
> Cc: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> Subject: Re: Strange behaviour of auto-fill
>
> Actually, when I call (turn-off-auto-fill) after calling
> (setq-default auto-fill-function 'do-auto-fill) does tell
> turn the mode off.
>
> > Sent: Saturday, April 24, 2021 at 11:21 AM
> > From: "Christopher Dimech" <dimech@gmx.com>
> > To: michael-franzese@gmx.com
> > Cc: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> > Subject: Re: Strange behaviour of auto-fill
> >
> >
> > Have had another go and noticed that calling
> >
> >   (turn-off-auto-fill)
> >
> > will not break lines if the following is present
> >
> >   (setq-default auto-fill-function 'do-auto-fill)
> >
> > My impression would be for developers to take a closer look at the
> > code, so that it's use would be simplified.  Or perhaps some good
> > examples on how to use it, as it does not look so clear to me.
> >
> > > Sent: Saturday, April 24, 2021 at 9:42 AM
> > > From: michael-franzese@gmx.com
> > > To: "Help Gnu Emacs" <help-gnu-emacs@gnu.org>
> > > Subject: Strange behaviour of auto-fill
> > >
> > > I am trying to set "auto-fill", with some tools to change "on-off" behaviour.
> > >
> > > Things get very confusing.  When I comment out "(setq-default auto-fill-function 'do-auto-fill)", "auto-fill-mode" will still break comments even though "break-line" is "0"
> > > and one sets "(auto-fill-mode 0)".
> > >
> > >
> > >
> > > (setq-default auto-fill-function 'do-auto-fill)
> > > (defvar break-line 0)
> > >
> > > (defun break-line-ddd ()
> > >   "Breaks long lines using auto-fill tool."
> > >   (interactive)
> > >
> > >   (pcase break-line
> > >     ((or 'nil 0)
> > >        (setq comment-auto-fill-only-comments nil)
> > >        (auto-fill-mode 0)
> > >        (message "%s %s"
> > > 		"Disable: Break line;  " break-line)
> > >        (setq break-line 1))
> > >     (1
> > >        (setq fill-column 72)
> > >        (setq comment-auto-fill-only-comments t)
> > >        (auto-fill-mode 1)
> > >        (message "%s" "Enable: Break only comments")
> > >        (setq break-line 2))
> > >     (_
> > >        (setq comment-auto-fill-only-comments nil)
> > >        (auto-fill-mode 1)
> > >        (message "%s" "Enable: Break all long lines")
> > >        (setq break-line 0)) ))
> > >
> > > (defun break-line-set ()
> > >   "Breaks long lines using auto-fill."
> > >   (break-line-ddd)
> > >   (global-set-key (kbd "H-b") #'break-line-ddd) )
> > >
> > > (break-line-set)
> > >
> > >
> > >
> >
>
>