Re: Adding a tooltip to text that matches a regexp?

[Raffaele Ricciardi <rfflrccrd@gmail.com>]

On 21/11/14 09:30, Tassilo Horn wrote:
> Tassilo Horn <tsdh@gnu.org> writes:
>
>>>      (set-text-properties  (match-beginning 0) (match-end 0)
>>>                            '(help-echo "Tooltip text"
>>>                                        font-lock-face 'my-custom-face))
>>>
>>> Can I do this in `font-lock-add-keywords`?
>>
>> Yes, you can.
>>
>>> If so, how?
>>
>> This adds a "Foo or Bar" tooltip to any occurences of the words foo or
>> bar in the current buffer.
>>
>>    (font-lock-add-keywords nil
>>      '(("\\<\\(foo\\|bar\\)\\>" 1 '(face nil help-echo "Foo or Bar"))))
>
> And I think you will want to add help-echo to
> `font-lock-extra-managed-props'.
>
> Bye,
> Tassilo
>

Thank you.

Should I make `font-lock-extra-managed-props' buffer local?