gnome-terminal (more properly known as vte) is neither. It's well-documented, long-known, etc.
See
http://invisible-island.net/ncurses/ncurses.faq.html#xterm_generic
(the comments there apply equally well to "xterm-256color")
You may be amused by this as well:
http://invisible-island.net/vttest/vttest-wrap.html
--
Thomas E. Dickey <[email protected]>
http://invisible-island.net
ftp://invisible-island.net
signature.asc
Description: Digital signature
