2002-06-12 Yoshinori K. Okuji <okuji@enbug.org>

The terminal handling code is rewritten radically.

	* stage2/console.c: New file.
	* stage2/term.h: Likewise.

	* stage2/Makefile.am (noinst_HEADERS): Added term.h.
	(libgrub_a_SOURCES): Added serial.c.
	(pre_stage2_exec_SOURCES): Added console.c.

	* stage2/asm.S (console_putchar): Rewritten from scratch.
	[!STAGE1_5] (translation_table): New variable.
	[!STAGE1_5] (translate_keycode): New function.
	[!STAGE1_5] (console_getkey): Call translate_keycode.
	[!STAGE1_5] (console_checkkey): Likewise.
	[!STAGE1_5] (nocursor): Renamed to ...
	[!STAGE1_5] (console_nocursor): ... this.
	[!STAGE1_5] (console_set_attrib): Removed.

	* stage2/builtins.c: Include term.h.
	(terminal): Removed.
	(normal_color): Likewise.
	(highlight_color): Likewise.
	(cat_func): Display a question mark when a non-printable
	character was read.
	(terminal_func): Rewritten almost from scratch.

	* stage2/char_io.c: Include term.h.
	[!STAGE1_5] (auto_fill): Removed.
	[!STAGE1_5] (term_table): New variable.
	[!STAGE1_5] (current_term): Likewise.
	[!STAGE1_5] (real_get_cmdline): New function. The code was
	stolen from the previous version of get_cmdline.
	[!STAGE1_5] (get_cmdline): Rewritten from scratch.
	[!STAGE1_5] (translate_keycode): Removed.
	[!STAGE1_5] (getkey): Rewritten from scratch.
	[!STAGE1_5] (checkkey): Likewise.
	(grub_putchar): Likewise.
	[!STAGE1_5] (gotoxy): Likewise.
	[!STAGE1_5] (getxy): Likewise.
	[!STAGE1_5] (cls): Likewise.
	[!STAGE1_5] (nocursor): New function.
	[SUPPORT_SERIAL] (serial_getxy): Removed.
	[SUPPORT_SERIAL] (serial_gotoxy): Likewise.
	[SUPPORT_SERIAL] (serial_cls): Likewise.
	[SUPPORT_SERIAL] (serial_getxy): Likewise.
	[!STAGE1_5] (set_attrib): Likewise.

	* stage2/cmdline.c (init_cmdline): Set COUNT_LINES to -1.

	* stage2/common.c [!STAGE1_5] (err_list): Removed
	ERR_NEED_SERIAL and added ERR_DEV_NEED_INIT.

	* stage2/hercules.c: Rewritten almost from scratch.
	* stage2/hercules.h (herc_putchar): Removed.
	(herc_cls): Likewise.
	(herc_getxy): Likewise.
	(herc_gotoxy): Likewise.
	(herc_set_attrib): Likewise.

	* stage2/serial.c: Rewritten almost from scratch.
	* stage2/serial.h: Likewise.

	* stage2/shared.h [GRUB_UTIL] (DISP_UL): Set to the same value
	as VGA's.
	[GRUB_UTIL] (DISP_UR): Likewise.
	[GRUB_UTIL] (DISP_LL): Likewise.
	[GRUB_UTIL] (DISP_LR): Likewise.
	[GRUB_UTIL] (DISP_HORIZ): Likewise.
	[GRUB_UTIL] (DISP_VERT): Likewise.
	[GRUB_UTIL] (DISP_LEFT): Likewise.
	[GRUB_UTIL] (DISP_RIGHT): Likewise.
	[GRUB_UTIL] (DISP_UP): Likewise.
	[GRUB_UTIL] (DISP_DOWN): Likewise.
	(grub_error_t): Removed ERR_NEED_SERIAL.
	Added ERR_DEV_NEED_INIT.
	(normal_color): Removed.
	(highlight_color): Likewise.
	(console_cls): Removed, because this is declared in term.h.
	(console_getxy): Likewise.
	(console_gotoxy): Likewise.
	(console_putchar): Likewise.
	(console_getkey): Likewise.
	(console_checkkey): Likewise.
	(console_set_attrib): Removed.
	(set_attrib): Likewise.
	[GRUB_UTIL] (nocursor): Declared.
	(auto_fill): Removed.
	(terminal): Likewise.
	(TERMINAL_CONSOLE): Likewise.
	(TERMINAL_SERIAL): Likewise.
	(TERMINAL_HERCULES): Likewise.
	(TERMINAL_DUMB): Likewise.
	(translate_keycode): Likewise.

	* stage2/stage2.c: Include term.h.
	(print_entry): Rewritten from scratch.
	(print_entries): Likewise.
	(print_border): Likewise.
	(set_line): Removed.
	(set_line_normal): Likewise.
	(set_line_highlight): Likewise.

	* grub/Makefile.am (AM_CFLAGS): Added -DSUPPORT_HERCULES=1.

	* grub/asmstub.c: Don't include hercules.h. Include term.h.
	(console_current_color): New variable.
	(console_translate_key): New function.
	(console_checkkey): Rewritten from scratch.
	(console_getkey): Likewise.
	(console_putchar): Likewise.
	(console_set_attrib): Removed.
	(console_highlight): New function.
	(console_setcolor): Likewise.
	(console_nocursor): Likewise.
	(serial_getkey): Removed.
	(serial_checkkey): Likewise.
	(serial_putchar): Likewise.
	(serial_exists): Likewise.
	(serial_get_port): Likewise.
	(serial_init): Likewise.
	(serial_hw_fetch): New function.
	(serial_hw_put): Likewise.
	(serial_hw_delay): Likewise.
	(serial_hw_get_port): Likewise.
	(serial_hw_init): Likewise.
	(set_serial_device): Renamed to ...
	(serial_set_device): ... this.
	(herc_putchar): Renamed to ...
	(hercules_putchar): ... this.
	(herc_cls): Renamed to ...
	(hercules_cls): ... this.
	(herc_getxy): Renamed to ...
	(hercules_getxy): ... this.
	(herc_gotoxy): Renamed to ...
	(hercules_gotoxy): ... this.
	(hercules_highlight): New function.
	(hercules_setcolor): Likewise.
	(hercules_nocursor): Likewise.
	(herc_set_attrib): Removed.

	* grub/main.c: Include term.h.
	(main): If USE_CURSES is false, set CURRENT_TERM->FLAGS to
	TERM_NO_EDIT | TERM_DUMB. TERMINAL is not used any longer.

NEWS

@@ -10,6 +10,14 @@ New in 0.93:
   details.
 * The appendix "FAQ" in the manual is removed. See the GNU GRUB FAQ on
   the web <http://www.gnu.org/software/grub/grub-faq.html> instead.
+* The terminal handling code is rewritten radically, and many bugfixes
+  are made at the same time.
+* The command "color" is effective even in the command-line.
+* The command "terminal" takes two new options, ``--no-echo'' and
+  ``--no-edit''. If you specify ``--no-echo'', GRUB won't echo back
+  input characters. If you specify ``--no-edit'', GRUB will disable the
+  BASH-like editing feature. These options are useful when using an
+  intelligent terminal (such as the comint mode in GNU Emacs).
 
 New in 0.92 - 2002-04-30:
 * The command "displaymem" uses only hex digits for consistency.