Re: Org, Hyperbole, and eev

[Robert Weiner <rswgnu@gmail.com>]

Hi Jean:

I know this does not address everything you want but if you leverage Hyperbole’s capabilities, you’ll probably be able to get what you want with a lot less code.

First, creating an explicit button displays only the button name as you like, fontified as you like, and with the button action hidden.  So then you need to write a function that adds or removed the button action from the buffer when you want to see it, utilizing existing Hyperbole code from the actype or action class for manipulating actions.

For your generalized syntax, I think you would be better off using the angle brackets of Hyperbole’s action buttons but you could instead use the defil macro to create your own link button type and delimiter format with just a few lines of code.  Just follow the example in the docstring for that macro.

Org probably has similar capabilities with its link types though not as flexible with the syntax.

-- rsw

> On Oct 8, 2022, at 1:00 AM, Jean Louis <bugs@gnu.support> wrote:
> 
> * Eduardo Ochs <eduardoochs@gmail.com> [2022-10-08 03:28]:
>>> On Thu, 29 Sept 2022 at 06:22, Jean Louis <bugs@gnu.support> wrote:
>>> 
>>> I am definitely interested, make prototype please. Just can't answer properly on travel.
>> 
>> Hi Jean Louis,
>> 
>> Sorry, I will have to put that on hold until my holidays... I wrote a
>> very primitive prototype, but I never had to write much code that
>> generates text with text properties, my friends are not interested in
>> playing with that together with me, and I don't know where to borrow
>> ideas from, so adding each new small feature by myself is a
>> struggle... and right now writing code "whose inner details don't
>> matter" is exactly the opposite of my notion of fun... =(
> 
> Fine, solution will come up with time. 
> 
> In the sense is similar to Org links, though just universal. With the
> RCD Template Interpolation System for Emacs:
> https://hyperscope.link/3/7/1/3/3/RCD-Template-Interpolation-System-for-Emacs.html
> and this function, I can easily replace such snippets as below to their values:
> 
> ** Hello heading
> 
> ⟦ (format "[[https://www.example.com][Hello there %s]]" user-full-name) ⟧
> 
> (defun rcd-org-interpolate ()
>  "Extrapolate Org buffer before dispatch."
>  (interactive)
> (let ((my-org (buffer-substring (point-min) (point-max))))
> (with-temp-buffer
>   (insert (rcd-template-eval my-org))
>   (org-export-dispatch))))
> 
> (keymap-set org-mode-map "C-c C-e" 'rcd-org-interpolate)
> 
> to get Org hyperlinks. Or any other type of a link?
> 
> (defun hyperscope-hyperlink (id &optional markup)
>  (let ((name (hyperscope-name id))
>    (link (hyperscope-hyperdocument-url id))
>    (markup (or markup (hyperscope-markup-type id))))
>    ;; (unless (or (eq (last-key-binding) 'newline)
>    ;;        (= (last-key) 13))
>    ;;(rcd-button-insert name (lambda (_) (hyperscope id))))
>    (cond ((or (eq major-mode 'markdown-mode)
>           (and (not rcd-current-table-id)
>            (or (= markup 2)
>            (= markup 3)
>            (= markup 6))))
>       (format "[%s](%s \"%s\")" name link name))
>       ((eq major-mode 'adoc-mode) (format "%s[%s]" (hyperscope-hyperdocument-url id) name))
>       ((eq major-mode 'org-mode) (format "[[%s][%s]]" link name)))))
> 
> Same may be used to insert buttons:
> 
> (defun rcd-button-insert (button-text action-function &optional how-many)
>  "Insert button BUTTON-TEXT with ACTION-FUNCTION.
> 
> Optional number HOW-MANY adds superscript digits to BUTTON-TEXT."
>  (insert-text-button button-text
>              'action
>                      action-function
>              'follow-link t)
>  (when how-many
>    (insert (rcd-superscript-digits how-many))))
> 
> (rcd-button-insert "Hello" (lambda (_) (message "I said Hello")))
> 
> now if button can be inserted, it means ⟦ (could insert button as well) ⟧ 
> and make the link invisible part of text. Once toggled, invisible
> part could become visible and saved as such link.
> 
> 
> -- 
> Jean
> 
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