2002-06-18 Marcus Brinkmann <marcus@gnu.org>

	* console.h: Update all CONS_KEY_* macros to match other terminfo
	definitions (like "linux", "screen", "gnome").  Add CONS_CHAR_*
	macros for terminal graphic characters.

	* display.c (struct attr): New member ALTCHAR to flag usage of
	alternate character set.
	(display_notice_filechange): Make static.
	(handle_escape_bracket_m): Set ALTCHAR to 0 when resetting.
	Support new modes 10 and 11 to disable and enable ALTCHAR.
	(limit_cursor): New function, moved to global scope from ...
	(handle_escape_bracket): ... here.
	(linefeed): New function, moved to global scope from ...
	(display_output_one): ... here.
	(horizontal_tab): New function.
	(handle_escape_bracket): Add alias \E[' to \E[G for VT100
	compatibility.  Add capability \E[a (horizontal cursor position
	relative) for ECMA-48 compatibility.  Add capabilities \E[I
	(horizontal tab) and \E[Z (backward tabulation) for ECMA-48
	compatibility.  Move capabilities \E[s and \E[u to ...
	(display_output_one): ... here as \E7 and \E8 for VT100
	compatibility.
	(altchar_to_ucs4): New function.
	(display_output_one): Use altchar_to_ucs4 when in altchar mode.
	Add \EM (reset) capability.

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