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Re: How to walk a Lisp_String?
From: |
Eli Zaretskii |
Subject: |
Re: How to walk a Lisp_String? |
Date: |
Fri, 02 Sep 2022 09:43:28 +0300 |
> From: Manuel Giraud <manuel@ledu-giraud.fr>
> Cc: emacs-devel@gnu.org
> Date: Thu, 01 Sep 2022 22:45:12 +0200
>
> I'm working into lwlib only. So I've made a function to get the frame
> of the menu widget (mw). I'm also converting the char* display_string
> of each menu entry to a Lisp_String with make_string (note: I don't know
> if I should have done that but it seems the way to get a proper
> multi-byte string from a char*).
make_multibyte_string is better, I think.
And I don't think I understand how you get the Lisp string to have the
face information. The original C char* string cannot have that
information as part of the string's data, so where will the face data
for the Lisp string come from?
> Finally, I'd like to walk this Lisp_String and call FACE_FOR_CHAR for
> each charater of this frame. And then be able to call XftDrawStringUtf8
> (or XmbDrawString) on each substring/font pair. WDYT?
Po Lu answered about the XftDrawStringUtf8 part.
For the faces part, I think face_at_string_position is a better
interface. It returns a face ID, from which you can get to the
corresponding 'struct face' via FACE_FROM_ID.
- Re: How to walk a Lisp_String?, (continued)
- Re: How to walk a Lisp_String?, Eli Zaretskii, 2022/09/02
- Re: How to walk a Lisp_String?, Po Lu, 2022/09/02
- Re: How to walk a Lisp_String?, Eli Zaretskii, 2022/09/02
- Re: How to walk a Lisp_String?, Po Lu, 2022/09/02
- Re: How to walk a Lisp_String?, Eli Zaretskii, 2022/09/02
- Re: How to walk a Lisp_String?, Po Lu, 2022/09/02
- Re: How to walk a Lisp_String?, Eli Zaretskii, 2022/09/02
- Re: How to walk a Lisp_String?, Manuel Giraud, 2022/09/02
- Re: How to walk a Lisp_String?, Eli Zaretskii, 2022/09/02
- Re: How to walk a Lisp_String?, Po Lu, 2022/09/02
- Re: How to walk a Lisp_String?,
Eli Zaretskii <=
- Re: How to walk a Lisp_String?, Manuel Giraud, 2022/09/02
- Re: How to walk a Lisp_String?, Eli Zaretskii, 2022/09/02
- Re: How to walk a Lisp_String?, Manuel Giraud, 2022/09/02
- Re: How to walk a Lisp_String?, Eli Zaretskii, 2022/09/02
- Re: How to walk a Lisp_String?, Manuel Giraud, 2022/09/02
- Re: How to walk a Lisp_String?, Po Lu, 2022/09/02
- Re: How to walk a Lisp_String?, Manuel Giraud, 2022/09/02
- Re: How to walk a Lisp_String?, Po Lu, 2022/09/02
- Re: How to walk a Lisp_String?, Tomas Hlavaty, 2022/09/03
- Re: How to walk a Lisp_String?, Po Lu, 2022/09/03