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

[Tassilo Horn]

Raffaele Ricciardi <rfflrccrd@gmail.com> writes:

Hi Raffaele,

>     (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"))))

HTH,
Tassilo