Hello Stefan,

On 2016-11-10 15:35, Stefan Monnier <monnier@iro.umontreal.ca> writes:

>>         (let ((completion (try-completion beforepoint table pred)))
>>           (if (not (stringp completion))
>>               completion
>
> This case is for when `completion` is t (when means that `beforepoint`
> is a valid candidate and there is no further completion possible).

I see.

>> I would like to fix org-contacts so that it works well all the time.
>> Should it directly return a cons of the string and its length?
>
> No, returning such a cons would be a bug and I'm pretty sure it would
> break the default completion code at least.

OK, but I do not know how to proceed then.

Is it correct to register as a completion something that returns a
string? Because it is what org-contacts does, but although it works with
the default completion code, it breaks ivy or helm style completions.
I'm trying to understand if the bug lies within org-contacts or within
iyv/helm.

Thanks,

Alan

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