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(Fbuffer_list): New optional argument FRAME.

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Richard M. Stallman 1997-06-26 21:09:22 +00:00
parent b79e7b7b3e
commit 08460cd4fb
1 changed files with 28 additions and 4 deletions
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32
src/buffer.c
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@ -39,6 +39,7 @@ Boston, MA 02111-1307, USA. */
#include "region-cache.h"
#include "indent.h"
#include "blockinput.h"
#include "frame.h"
struct buffer *current_buffer; /* the current buffer */
@ -179,11 +180,34 @@ Value is nil if OBJECT is not a buffer or if it has been killed.")
? Qt : Qnil);
}
DEFUN ("buffer-list", Fbuffer_list, Sbuffer_list, 0, 0, 0,
"Return a list of all existing live buffers.")
()
DEFUN ("buffer-list", Fbuffer_list, Sbuffer_list, 0, 1, 0,
"Return a list of all existing live buffers.\n\
If the optional arg FRAME is a frame, we return that frame's buffer list.")
(frame)
Lisp_Object frame;
{
return Fmapcar (Qcdr, Vbuffer_alist);
Lisp_Object framelist, general;
general = Fmapcar (Qcdr, Vbuffer_alist);
if (FRAMEP (frame))
{
Lisp_Object tail;
CHECK_FRAME (frame, 1);
framelist = Fcopy_sequence (XFRAME (frame)->buffer_list);
/* Remove from GENERAL any buffer that duplicates one in FRAMELIST. */
tail = framelist;
while (! NILP (tail))
{
general = Fdelq (XCONS (tail)->car, general);
tail = XCONS (tail)->cdr;
}
return nconc2 (framelist, general);
}
return general;
}
/* Like Fassoc, but use Fstring_equal to compare