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Re: Toggle WikiLink on and off does not work?
From: |
Csányi Pál |
Subject: |
Re: Toggle WikiLink on and off does not work? |
Date: |
Thu, 17 Aug 2017 10:17:34 +0200 |
2017-08-16 16:50 GMT+02:00 Emanuel Berg <moasen@zoho.com>:
> Csányi Pál wrote:
>
>> ;; Toggle WikiLink on and off
>> (defun emacs-wiki-unlink-toggle ()
>> "Toggle <nop> string in the beginning of the current word, to un/make a
>> word emacs-wiki link. The current word depends on the point: if the
>> cursor
>> is on a non-whitespace character, it's considered a word surrounded by
>> whitespace. If the cursor is on a whitespace character, the next word is
>> looked up. This way addressing a word works intuitively after having
>> arrived on the spot using forward-word."
>> (interactive)
>> (save-excursion
>> (if (looking-at "[[:space:]]")
>> (goto-char (- (re-search-forward "[A-Za-z<]") 1))
>> (goto-char (+ (re-search-backward "[[:space:]]") 1)))
>> (if (looking-at "<nop>")
>> (delete-char 5)
>> (insert "<nop>"))))
>
> Some comments on the code:
>
> The docstring is very technical - usually it
> only describes what happens, leaving out most
> implementation details. Usually, but
> not always!
>
> Also, the lines are very long so for some
> people they won't fit on a screen. Break them
> off and insert blank lines. Use \n if need be.
>
> You know about `1+' and `1-' to add/subtract 1?
>
> If the "5" is because (length "<nop>") is five,
> it is better to compute that - data that is
> derived from other data should be computed so
> that, if other data change, so does data.
>
> Indentation: add four spaces before the
> first "(if".
>
>> (add-hook 'emacs-wiki-mode-hook
>> '(lambda () (local-set-key "\C-c\C-n" 'emacs-wiki-unlink-toggle)))
>>
>> but in Wiki mode I can't toggle on or off a WikiLink.
>> Why?
>
> You don't need a lambda here (and they need not
> be quoted). You can put a # before the
> function quote.
>
> Using `local-set-key' is one way to do it,
> I would however `require' the emacs-wiki,
> and then use `define-key' with the mode map, as
> in:
>
> (require 'erc)
> (define-key erc-mode-map "\C-\M-p" #'erc-previous-command)
>
> Ask again if it didn't help!
So I am trying to understand your advices.
This is the elisp program language and I am a newbie here.
Here is the code for the Emacs Wiki mode, which I have now in my .emacs file:
(require 'emacs-wiki)
;; Toggle WikiLink on and off
(defun emacs-wiki-unlink-toggle ()
(interactive)
(save-excursion
(if (looking-at "[[:space:]]")
(goto-char (- (re-search-forward "[A-Za-z<]") 1))
(goto-char (+ (re-search-backward "[[:space:]]") 1)))
(if (looking-at "<nop>")
(delete-char 5)
(insert "<nop>"))))
(define-key emacs-wiki-unlink-toggle "\C-\M-n")
When I load the .emacs file with 'M-x load-file' command, I get message:
Wrong number of arguments: define-key, 2
A want to add to this question more.
Actually, with the previous setup the C-c C-n keybinding works,
eg.
if I have in a Wiki page the WikiLink word, and the cursor is on that word, then
the C-c C-n gives:
<nop>WikiLink
but WikiLink remain to be a Wiki Link.
And if I after that hit again C-c C-n then the <nop> disappeared, I get again:
WikiLink
So If I understand right, if one untoggle the Wiki Link, then the link
should disappeared,
and WikiLink should not be underlined. And vica versa. Right?
This is what not works here. Why?
--
Best, Pali
- Toggle WikiLink on and off does not work?, Csányi Pál, 2017/08/16
- Re: Toggle WikiLink on and off does not work?, Emanuel Berg, 2017/08/16
- Re: Toggle WikiLink on and off does not work?, Emanuel Berg, 2017/08/16
- Re: Toggle WikiLink on and off does not work?,
Csányi Pál <=
- Re: Toggle WikiLink on and off does not work?, Emanuel Berg, 2017/08/17
- Re: Toggle WikiLink on and off does not work?, Csányi Pál, 2017/08/17
- Re: Toggle WikiLink on and off does not work?, Emanuel Berg, 2017/08/17
- Re: Toggle WikiLink on and off does not work?, Csányi Pál, 2017/08/18
- Re: Toggle WikiLink on and off does not work?, Emanuel Berg, 2017/08/19
- Re: Toggle WikiLink on and off does not work?, Csányi Pál, 2017/08/19
- Re: Toggle WikiLink on and off does not work?, Emanuel Berg, 2017/08/19
- Re: Toggle WikiLink on and off does not work?, Csányi Pál, 2017/08/19
- Re: Toggle WikiLink on and off does not work?, Emanuel Berg, 2017/08/17