This takes care of a lot of the leaked memory in the curses interface.
It still needs to free memory allocated for status fields when the
status window is destroyed at game end; likewise for message history
when the message window is destroyed.
Support <delete> (aka <rubout>) during getline(). It doesn't actually
honor the current erase_char value set up for the terminal, just
treats DEL the same as ^H. (The previous lack of support had nothing
to do with terminfo specifying ^H; the handling is hard-coded.)
tty treats escape while there's already some input as kill_char (erase
the input but get more from scratch) and returns ESC if there isn't.
curses was doing the first half but not the second, so not providing
any way to communicate "cancel" back to the core. Fix is simple.
Other getline() bug fixes:
1] there was a wprintw("%*something") which was passing the value from
strlen (type 'size_t') to the "%*" argument (type 'int'). That's
always wrong (size_t is guaranteed to be unsigned) and could be severe
(if size_t is different width than int--as on current OSX systems--
depending upon the internals of argument passing).
2] strncpy() only supplies a terminating '\0' if the input is shorter
than the number of characters specified.
A lot of reformatting is warranted but I only did the getline routine
(manually, so might have missed stuff).
Three or four instances of one simple memory leak. Allocating a union
'anything' to pass to add_menu(), then not doing anything with it. The
value gets copied so there's no reason for the original to stick around.
[There are still lots of other memory leaks.]
There was no provision for malloc() potentially returning Null and it
wasn't integrated with nethack's MONITOR_HEAP. 'heaputil' shows that
the curses interface is leaking like a sieve. If some things are
actually being allocated separately and then freed from within curses,
those need to be thoroughly documented and maybe switched back to
malloc().
The curses interface already has a hack to keep 'Count: 12', 'Count:
123' intermediate multi-digit counts out of its message recall history
for ^P, but it was flushing real messages when getpos()'s 'autodescribe'
reported what the cursor moved over. Overload the count hack to support
putstr(WIN_MESSAGE, ATR_NOHISTORY, text)
(which is what custompline(SUPPRESS_HISTORY, ...) eventually calls).
The conditional logic for when to create the 'count_window' was pretty
convoluted. This simplification has the same semantics but I don't
have PDCURSES to actually verify that.
Some bits from another feature by Tangles had
slipped into our merge of curses a while back.
Remove the partial bits as feature bits should
be complete or not at all, unless foundational
for something to come.
Move the curses global variable defininitions to cursmain.c.
Make the references to those global variables extern in
include/wincurs.h
Get rid of a warning:
../win/curses/cursmesg.c:379:9: warning: declaration shadows a
variable in the global scope [-Wshadow] int orig_cursor = curs_set(0);
Kludge for Visual Studio compiler: Add a stub- file for use
in Windows curses port builds to ensure that a needed #pragma
is invoked prior to compiling the file pdcscrn.c in the
PDCurses source distribution. All command line options and
compile of the file. It is unreasonable to expect a NetHack
builder to have to tinker with the PDCurses source files in
order to build NetHack. This kludge means the NetHack builder
doesn't have to.
The file stub-pdcscrn.c contains only two lines:
#pragma warning(disable : 4996)
#include "pdcscrn.c"
Some day, if the PDCurses sources corrects the issue, this
can go away.
