visible-whitespace-mode

visible-whitespace-mode

[goncholden via Users list for the GNU Emacs text editor]

I want to use visible-whitespace-mode location here

https://www.emacswiki.org/emacs/visws.el

I have written the following function but getting the warning

Symbol's function definition is void: visible-whitespace-mode

(defun visws ()
"TODO"

(add-to-list
'load-path "~/contrib/visws")
;;(require "visible-whitespace-mode")
(visible-whitespace-mode))

(visws)

Re: visible-whitespace-mode

[Michael Heerdegen]

goncholden via Users list for the GNU Emacs text editor
<help-gnu-emacs@gnu.org> writes:

> I want to use visible-whitespace-mode location here
>
> https://www.emacswiki.org/emacs/visws.el
>
> I have written the following function but getting the warning
>
> Symbol's function definition is void: visible-whitespace-mode

When compiling?

Michael.

Re: visible-whitespace-mode

[goncholden]

------- Original Message -------
On Thursday, June 9th, 2022 at 9:09 PM, Michael Heerdegen <michael_heerdegen@web.de> wrote:


> goncholden via Users list for the GNU Emacs text editor
> help-gnu-emacs@gnu.org writes:
>
> > I want to use visible-whitespace-mode location here
> >
> > https://www.emacswiki.org/emacs/visws.el
> >
> > I have written the following function but getting the warning
> >
> > Symbol's function definition is void: visible-whitespace-mode
>
>
> When compiling?
>
> Michael.

I think so because I get

Warning (initialization): An error occurred while loading ‘/home/cholden/.emacs’:

I have put the code locally.

Re: visible-whitespace-mode

[Michael Heerdegen]

goncholden <goncholden@protonmail.com> writes:

> > When compiling?
> >
> > Michael.
>
> I think so because I get
>
> Warning (initialization): An error occurred while loading
> ‘/home/cholden/.emacs’:

No, that's just a normal error while loading your .emacs.

Michael.

Re: visible-whitespace-mode

[goncholden]

------- Original Message -------
On Friday, June 10th, 2022 at 2:18 AM, Michael Heerdegen <michael_heerdegen@web.de> wrote:


> goncholden goncholden@protonmail.com writes:
>
> > > When compiling?
> > >
> > > Michael.
> >
> > I think so because I get
> >
> > Warning (initialization): An error occurred while loading
> > ‘/home/cholden/.emacs’:
>
>
> No, that's just a normal error while loading your .emacs.
>
> Michael.

What could be the problem?  The path is ok.

Re: visible-whitespace-mode

[Michael Heerdegen]

goncholden via Users list for the GNU Emacs text editor
<help-gnu-emacs@gnu.org> writes:

Ehm - wait:

> Symbol's function definition is void: visible-whitespace-mode
>
> (defun visws ()
> "TODO"
>
> (add-to-list
> 'load-path "~/contrib/visws")
> ;;(require "visible-whitespace-mode")
> (visible-whitespace-mode))

An error is expect when you comment out the `require' call, no?  Why do
you expect this to work?

Michael.

Re: visible-whitespace-mode

[goncholden]

------- Original Message -------
On Friday, June 10th, 2022 at 2:11 AM, Michael Heerdegen <michael_heerdegen@web.de> wrote:


> goncholden via Users list for the GNU Emacs text editor
> help-gnu-emacs@gnu.org writes:
>
>
> Ehm - wait:
>
> > Symbol's function definition is void: visible-whitespace-mode
> >
> > (defun visws ()
> > "TODO"
> >
> > (add-to-list
> > 'load-path "~/contrib/visws")
> > ;;(require "visible-whitespace-mode")
> > (visible-whitespace-mode))
>
>
> An error is expect when you comment out the `require' call, no? Why do
> you expect this to work?
>
> Michael.

Because I used

(require 'visible-whitespace-mode)

and that failed as well.

Might be that calling (visible-whitespace-mode) is not the correct way for activating the minor mode.

Re: visible-whitespace-mode

[Michael Heerdegen]

goncholden <goncholden@protonmail.com> writes:

> Because I used
>
> (require 'visible-whitespace-mode)
>
> and that failed as well.

Your file doesn't provide a feature, so you can't use `require' to load
it (you would not `require' the mode name anyway - please have a look in
the manual how `provide' and `require' work).

So you can either add a `provide' statement to your file, or load it
using `load': (load "visws").

Michael.

Re: visible-whitespace-mode

[goncholden]

------- Original Message -------
On Friday, June 10th, 2022 at 6:17 AM, Michael Heerdegen <michael_heerdegen@web.de> wrote:


> goncholden goncholden@protonmail.com writes:
>
> > Because I used
> >
> > (require 'visible-whitespace-mode)
> >
> > and that failed as well.
>
>
> Your file doesn't provide a feature, so you can't use `require' to load it (you would not` require' the mode name anyway - please have a look in
> the manual how `provide' and` require' work).
>
> So you can either add a `provide' statement to your file, or load it using` load': (load "visws").
>
> Michael.

I have added (provide 'visws) to the end of the file of the same name.  Then called (require 'visws), which works fine.

What can I do to activate the minor made because calling

(visible-whitespace-mode)

is giving me

Invalid read syntax: ?

Re: visible-whitespace-mode

[Michael Heerdegen]

goncholden <goncholden@protonmail.com> writes:

> Invalid read syntax: ?

|  (?\t [?» ?\t] [?\\ ?\t])
|  (?   [?·] [?.])
         ^^^

?» and ?· are syntactically invalid (two non-whitespace characters
follow the "?").  Which characters do you want to specify?

Michael.

Re: visible-whitespace-mode

[Stefan Monnier via Users list for the GNU Emacs text editor]

Michael Heerdegen [2022-06-10 11:18:08] wrote:
> goncholden <goncholden@protonmail.com> writes:
>> Invalid read syntax: ?
>
> |  (?\t [?» ?\t] [?\\ ?\t])
> |  (?   [?·] [?.])
>          ^^^
>
> ?» and ?· are syntactically invalid (two non-whitespace characters
> follow the "?").  Which characters do you want to specify?

This looks like utf-8 encoded text mis-decoded with the
latin-1 coding-system:

    (decode-coding-string (encode-coding-string "[?» ?\\t]" 'latin-1) 'utf-8)
    ==>
    "[?» ?\t]"

    (decode-coding-string (encode-coding-string "[?·]" 'latin-1) 'utf-8)"
    ==>
    "[?·]


-- Stefan

Re: visible-whitespace-mode

[Michael Heerdegen]

Stefan Monnier via Users list for the GNU Emacs text editor
<help-gnu-emacs@gnu.org> writes:

> This looks like utf-8 encoded text mis-decoded with the
> latin-1 coding-system:
>
>     (decode-coding-string (encode-coding-string "[?» ?\\t]" 'latin-1)
> 'utf-8)
>     ==>
>     "[?» ?\t]"
>
>     (decode-coding-string (encode-coding-string "[?·]" 'latin-1) 'utf-8)"
>     ==>
>     "[?·]

Thanks for the hint.  So these are the characters the author wants to
use.

Michael.