was never used. This was intended to be a method for internationalization,
letting the sysop change which key is used as the uiniversal "quit" key.
This commit replaces most of the uses of the hard-coded 'Q' for quit wtih the
3rd charcter in the text.dat YNQP string. Some hard-coded menus still have the
'Q' key hard-coded and will need to be addressed later. The text.h YN index
macro was changed to YNQP and the JS text index variable name will change
as well.

Fix Ctrl-Z/Undo so it only redisplays from the correct column/offset.
Note: K_NOECHO mode appears to still have some bugs if/when K_EDIT is also
used (which would be a weird combination of modes).

for non-ANSI terminals (that have a non-destructive backspace) in getstr().

Simplify redrwstr() by combining ANSI/non-ANSI terminal support.

with ansi_gotoxy(), ansi_save(), and ansi_restore() functions.

If default value is not zero, it is the value returned if enter is
pressed with no input.  In this case, zero is allowed to be entered.

- returns true/false if the user's terminal supports all the passed flags
- returns the supported flags if no flags are passed for comparison
- automatically uses the auto-terminal-type flags if no user is logged-on

CON_R_ECHOX and CON_L_ECHOX, then sends "\b \b"

Replace all instances of [br]puts("\b \b") with call to backspace()

This fixes once and for all the "spaces entered at password prompt are
echoed as spaces" problem.

Har.

PR:42->closed

(I always wanted to do that commit!)

editor).

indicator.
Created CON_DELETELINE status to indicate getstr() returned due to line
deletion (versus backspace).

Removed CRLFs even when K_NOCRLF mode bit is set under some circumstances.
Ctrl-Z (if not handled by inkey) will undo any changes made to the line.
Insert indicator (flashing block) is now placed in (normally unused) cell 1,80
(fixes wrap problem when using insert during input on bottom line of terminal).
Insert mode is no longer automatically turned off at end of string.
Ctrl-Y will now delete the entire line (ala Ctrl-X) if used at EOL.
Optimized Ctrl-Y/X clearing of line for ANSI terminals.

for full-screen editor functionality.
Added support for CON_DOWNARROW, CON_LEFTARROW, and CON_BACKSPACE console
status bits, used in combination with getstr(K_LEFTEXIT)  for full-screen
editor functionality.
Insert mode (^V) still needs work.