Please describe the problem:
While defining my PS1 prompt to use some non-printable characters, vte-based applications (I tested with gnome-terminal and XFCE's Terminal) are printing characters that shouldn't be printed, the characters are, specifically, ESC-k and ESC-\.

Those characters are needed if you want to set dynamic window titles in GNU screen (section 10.1.2 in screen's user's manual - http://sunsite.ualberta.ca/Documentation/Gnu/screen-3.9.4/html_chapter/screen_10.html).

Notice that the behavior shown by gnome-terminal and XFCE's Terminal doesn't match xterm's and rxvt's behavior.

Steps to reproduce:
1. Open a VTE-based application, gnome-terminal, for instance.
2. type: export PS1='\[\033k\033\\\] '
3. See that your prompt is substituted by k instead of nothing
4. Open xterm, repeat step 2. and see that it is going to work as expected


Actual results:
You see k when you should see nothing as your prompt

Expected results:


Does this happen every time?
Yep.

Other information:
Distribution: Slackware Slackware 12.2.0
Gnome Release: 2.24.2 2008-11-26 (Dropline GNOME)
BugBuddy Version: 2.24.2

System: Linux 2.6.27.7-smp #2 SMP Thu Nov 20 22:32:43 CST 2008 i686
X Vendor: The X.Org Foundation
X Vendor Release: 10402000
Selinux: No
Accessibility: Disabled
GTK+ Theme: TwoEighteen
Icon Theme: Gion