* Customization Types: Splicing into Lists
@ 2014-09-01 18:36 Daimrod
2014-09-05 11:16 ` Daimrod
0 siblings, 1 reply; 2+ messages in thread
From: Daimrod @ 2014-09-01 18:36 UTC (permalink / raw)
To: emacs-devel
Hi,
When I tried to use org-feed.el (an org-mode module used to follow
RSS/Atom feeds in org files) I found (I think) a weird bug.
It looks like it's impossible to use splicing as it is shown in the
manual.
(info "(elisp) Splicing into Lists") says:
> When the element-type is a ‘choice’, you use ‘:inline’ not in the
> ‘choice’ itself, but in (some of) the alternatives of the ‘choice’. For
> example, to match a list which must start with a file name, followed
> either by the symbol ‘t’ or two strings, use this customization type:
>
> (list file
> (choice (const t)
> (list :inline t string string)))
>
> If the user chooses the first alternative in the choice, then the
> overall list has two elements and the second element is ‘t’. If the
> user chooses the second alternative, then the overall list has three
> elements and the second and third must be strings.
To reproduce this "bug" I did:
1. evaluate
(defcustom foo '("" t)
"bar"
:type '(list string (choice (const t)
(list :inline t string string))))
2. M-x customize-variable RET foo RET
3. Change the "Choice" field by the "list" type.
4. Apply the change
5. M-x customize-variable RET foo RET -> error (mismatch)
It looks like the structure isn't recognized by the Customize interface.
I encountered this "bug" on master, emacs24 and emacs23.
Am I crazy? Did I miss something?
Best,
--
Daimrod/Greg
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