Text Props and Strings

Text Props and Strings

[Óscar Fuentes]

Following the example of the info node with that title on the Elisp
manual, I evaluate

(insert #("foo bar" 0 3 (face bold) 3 4 nil 4 7 (face italic)))

on the *scratch* buffer, but the string "foo bar" is inserted as normal
text, without properties (The font supports bold and italic)

 Same result with

(insert #("x" 0 1 (face (:foreground "red"))))

So the properties on the string are ignored. What I'm missing?

Using GNU Emacs 24.0.50.1 (x86_64-unknown-linux-gnu, X toolkit) of
2010-09-16

Re: Text Props and Strings

[Eli Zaretskii]

> From: Óscar Fuentes <ofv@wanadoo.es>
> Date: Tue, 12 Oct 2010 04:59:05 +0200
> 
> So the properties on the string are ignored. What I'm missing?

propertize?

Re: Text Props and Strings

[Óscar Fuentes]

Eli Zaretskii <eliz@gnu.org> writes:

>> So the properties on the string are ignored. What I'm missing?
>
> propertize?

(insert (propertize "foo bar" 'face 'bold))

doesn't work either, but it seems that this happen because when the
buffer has font-lock activated, text properties for strings inserted
with `insert' are ignored (or removed just afterwads the insertion, I
don't know for sure.) If the buffer has no font-lock mode activated,
both `propertize' and the #( syntax works.

Re: Text Props and Strings

[Eli Zaretskii]

> From: Óscar Fuentes <ofv@wanadoo.es>
> Date: Tue, 12 Oct 2010 14:46:05 +0200
> 
> when the buffer has font-lock activated

This important piece of information was absent from your original
question.

Yes, when font-lock is active, it overrides all the faces.