Posix requires that adding '\n' does clrtoeol() and 'x = 0'.
(Making "\r\n" erase the text that has just been displayed.)
Remove __NONL test from addbytes, __NONL is a property of the output device.
Make delwin() remove window from list of windows on its screen.
Free win->lspace and win->lines for subwins (they only share text space).
Free things in the correct (and same) order if malloc() fails in __makenew().
Adjust delscreen() for delwin() removing itself from winlist.
Fixes potential massive corruptions if delwin() called on a main window.
NB: not responsible for the sysinst core dumps :-(
do the translation ourselves (if the tty didn't do it for us).
Add debugging to track functions that change tty state.
Fixes PR 20834 by Stephen Borrill.
See the Single UNIX Specification, Version 2 :
http://www.opengroup.org/onlinepubs/007908799/xcurses/can_change_color.html
Also, add the functions :
use_default_colors();
assume_default_colors(fore, back);
(from ncurses) that allow the terminal default colours or user-specified
default colours to be used.
* Modified __init_getch to use termcap handle that has been allocated
(_cursesi_genbuf) instead of refetching it.
* Make wgetstr support erase - this is not a full blown SUSv2 version
but it is a start.
* Added code to __restartwin to restore meta and cursor visibility states
* Added code to __stopwin to disable meta.
* Added the *line group of functions for drawing character lines.
(this is a requirement of SUSv2) - the old macro behaviour can be
restored by defining _CURSES_USE_MACROS.
Changed function prototypes to use ANSI style.
All externally visible functions now have ANSI style declarations.
jdc