* Adding a tooltip to text that matches a regexp?
@ 2014-11-20 18:29 Raffaele Ricciardi
2014-11-21 7:38 ` Tassilo Horn
0 siblings, 1 reply; 6+ messages in thread
From: Raffaele Ricciardi @ 2014-11-20 18:29 UTC (permalink / raw
To: help-gnu-emacs
I would like to add a tooltip to any text that matches a regexp. The
buffer content is going to change, thus I can't do it once for all.
Since such text is going to be highlighted by Font Lock, it seems that
adding the tooltip in `font-lock-add-keywords` could be a solution. I
know that I must set the `help-echo` property of the matching text, like
this:
(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`? If so, how? If not, are
there alternative solutions?
Thank you.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Adding a tooltip to text that matches a regexp?
2014-11-20 18:29 Adding a tooltip to text that matches a regexp? Raffaele Ricciardi
@ 2014-11-21 7:38 ` Tassilo Horn
2014-11-21 8:30 ` Tassilo Horn
[not found] ` <mailman.14226.1416558662.1147.help-gnu-emacs@gnu.org>
0 siblings, 2 replies; 6+ messages in thread
From: Tassilo Horn @ 2014-11-21 7:38 UTC (permalink / raw
To: Raffaele Ricciardi; +Cc: help-gnu-emacs
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
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Adding a tooltip to text that matches a regexp?
2014-11-21 7:38 ` Tassilo Horn
@ 2014-11-21 8:30 ` Tassilo Horn
[not found] ` <mailman.14226.1416558662.1147.help-gnu-emacs@gnu.org>
1 sibling, 0 replies; 6+ messages in thread
From: Tassilo Horn @ 2014-11-21 8:30 UTC (permalink / raw
To: Raffaele Ricciardi; +Cc: help-gnu-emacs
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
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Adding a tooltip to text that matches a regexp?
[not found] ` <mailman.14226.1416558662.1147.help-gnu-emacs@gnu.org>
@ 2014-11-22 12:48 ` Raffaele Ricciardi
2014-11-22 13:47 ` Tassilo Horn
2014-11-22 14:34 ` Stefan Monnier
0 siblings, 2 replies; 6+ messages in thread
From: Raffaele Ricciardi @ 2014-11-22 12:48 UTC (permalink / raw
To: help-gnu-emacs
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?
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Adding a tooltip to text that matches a regexp?
2014-11-22 12:48 ` Raffaele Ricciardi
@ 2014-11-22 13:47 ` Tassilo Horn
2014-11-22 14:34 ` Stefan Monnier
1 sibling, 0 replies; 6+ messages in thread
From: Tassilo Horn @ 2014-11-22 13:47 UTC (permalink / raw
To: Raffaele Ricciardi; +Cc: help-gnu-emacs
Raffaele Ricciardi <rfflrccrd@gmail.com> writes:
>>> 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'.
>
> Thank you.
>
> Should I make `font-lock-extra-managed-props' buffer local?
I'd say yes.
Bye,
Tassilo
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Adding a tooltip to text that matches a regexp?
2014-11-22 12:48 ` Raffaele Ricciardi
2014-11-22 13:47 ` Tassilo Horn
@ 2014-11-22 14:34 ` Stefan Monnier
1 sibling, 0 replies; 6+ messages in thread
From: Stefan Monnier @ 2014-11-22 14:34 UTC (permalink / raw
To: help-gnu-emacs
> Should I make `font-lock-extra-managed-props' buffer local?
To find the answer, it's usually better to ask the reverse:
"do I want this change to affect *all* buffers?"
Stefan
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2014-11-22 14:34 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-11-20 18:29 Adding a tooltip to text that matches a regexp? Raffaele Ricciardi
2014-11-21 7:38 ` Tassilo Horn
2014-11-21 8:30 ` Tassilo Horn
[not found] ` <mailman.14226.1416558662.1147.help-gnu-emacs@gnu.org>
2014-11-22 12:48 ` Raffaele Ricciardi
2014-11-22 13:47 ` Tassilo Horn
2014-11-22 14:34 ` Stefan Monnier
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