APPROVE COMMIT 21.5
Not for 21.4.
Please direct further discussion of the patch to XEmacs Patches
<xemacs-patches(a)xemacs.org>. Reply-To set.
Stephen J. Turnbull writes:
Andreas Röhler writes:
>
> Command `list-colors-display' fails with error:
>
> "Wrong type argument: stringp, ("lightgreen")
>
> Diff below fixes it for me.
And probably breaks it on TTYs, where it currently works fine. This
requires more in-depth analysis.
What I came up with is below. Test suite passes, some light
interactive testing works on X11 and TTY devices. Rationale is in the
comment in x-faces.el.
Please watch for anomolies in color-handling. Shouldn't be any, AFAIK
this device method is only used for giving the user information.
That's why this bug hasn't been seen before now (it's been there since
2005-01-28).
Index: lisp/ChangeLog
===================================================================
RCS file: /pack/xemacscvs/XEmacs/xemacs/lisp/ChangeLog,v
retrieving revision 1.847
diff -u -U0 -r1.847 ChangeLog
--- lisp/ChangeLog 3 Oct 2007 16:53:38 -0000 1.847
+++ lisp/ChangeLog 7 Oct 2007 05:39:11 -0000
@@ -0,0 +1,5 @@
+2007-10-06 Stephen J. Turnbull <stephen(a)xemacs.org>
+
+ * x-faces.el (x-color-list-internal): Should return a list of
+ strings. Make it so.
+
Index: lisp/x-faces.el
===================================================================
RCS file: /pack/xemacscvs/XEmacs/xemacs/lisp/x-faces.el,v
retrieving revision 1.30
diff -u -r1.30 x-faces.el
--- lisp/x-faces.el 30 Sep 2007 11:59:35 -0000 1.30
+++ lisp/x-faces.el 7 Oct 2007 05:39:15 -0000
@@ -603,6 +603,15 @@
(defvar x-color-list-internal-cache)
+;; Ben originally coded this in 2005/01 to return a list of lists each
+;; containing a single string. This is apparently derived from use of
+;; this list in completion, but in fact `read-color-completion-table'
+;; already does this wrapping. So I'm changing this to return a list of
+;; strings as the TTY code does, and as expected by r-c-c-t.
+;; -- sjt 2007-10-06
+
+;; This function is probably also used by the GTK platform. Cf.
+;; gtk_color_list in src/objects-gtk.c.
(defun x-color-list-internal ()
(if (boundp 'x-color-list-internal-cache)
x-color-list-internal-cache
@@ -623,12 +632,12 @@
(setq p (point))
(end-of-line)
(setq color (buffer-substring p (point))
- clist (cons (list color) clist))
+ clist (cons color clist))
;; Ugh. If we want to be able to complete the lowercase form
;; of the color name, we need to add it twice! Yuck.
(let ((dcase (downcase color)))
(or (string= dcase color)
- (push (list dcase) clist)))
+ (push dcase clist)))
(forward-char 1))
(kill-buffer (current-buffer))))
(setq x-color-list-internal-cache clist)
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