CVS log for src/lib/libcurses/insstr.c

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Keyword substitution: kv
Default branch: MAIN

Sprinkle about some cycle wasting checks for the win pointer being
null.  Unfortunately, ncurses does this and there is some sloppy code
out there that relies on the check resulting in segfaults in
NetBSD curses which then, of course, gets blamed for the error.

Fixes for lib/56926 amongst other things:
 - plod now correctly accounts for wide characters when plodding
 - use erase line when in color mode if the terminal has the capability
 - ensure that the CA_CONTINUATION flag is applied consistently to the
   subsequent characters in a wide character.
 - fix a bunch of refresh bugs that caused inconsistent placement of
   wide characters.

Correct (hopefully) the handling of wide characters.

* Remove the WCOL family of macros, these were "stealing" the upper bits
  of a character attribute to store the column width of a character.  No
  warning was given about this in curses.h which meant it was easy to
  accidentally reuse the bits in use by the WCOL macros (we already did).
  Add couple of 16bit ints to the character structure iff HAVE_WCHAR is
  true to hold the display width and wide char related flags (just
  continuation at the moment)
* Convert all instances of WCOL macros to just reference the column width
  in the char structure so it is not obfuscated.
* Fix cursor positioning so placing a cursor in the middle of a wide char
  actually does just that.
* Fix plod so it understands that if the cursor is going to be positioned
  in the middle of a wide char it cannot just reprint the char to get there.
* Fix plodput so it correctly counts the number of output characters for
  wide characters.
* Fix slk routines to properly size the wctomb() buffer.

Expand __CTRACE() to __nothing #ifndef DEBUG.

Remove most of #ifdef DEBUG around __CTRACE() calls.

No binary changes, except for line numbers for assert().

Pull up following revision(s) (requested by uwe in ticket #1567):

	lib/libcurses/insch.c: revision 1.26
	lib/libcurses/ins_wch.c: revision 1.15
	lib/libcurses/ins_wstr.c: revision 1.15
	lib/libcurses/insstr.c: revision 1.8

mvwins*(WINDOW *win, ...) functions - call wins* on win, not stdscr.
From Naman Jain in PR lib/55460.

Pull up following revision(s) (requested by uwe in ticket #986):

	lib/libcurses/insch.c: revision 1.26
	lib/libcurses/ins_wch.c: revision 1.15
	lib/libcurses/ins_wstr.c: revision 1.15
	lib/libcurses/insstr.c: revision 1.8

mvwins*(WINDOW *win, ...) functions - call wins* on win, not stdscr.
From Naman Jain in PR lib/55460.

mvwins*(WINDOW *win, ...) functions - call wins* on win, not stdscr.
From Naman Jain in PR lib/55460.

Sync with HEAD

Rework previous fix for getch cursor position when cursor is moved
without refresh.  If the window is not dirty but the window cursor
position does not match curscr then move the cursor.  This fixes
the issues seen in PR lib/54263.

Back out incorrect fix for PR 53617 and fix it in a different way.
Keep track of the cursor location, if getch is called without a refresh
and without pending updates (dirty windows) then move the cursor to the
correct location directly.  Doing this prevents unnecessary refreshes.

Sync with HEAD.  (Note that most of these changes are simply $NetBSD$
tag issues.)

KNF.
Normalise coding style.
White space police.
Sprinkle some extra braces to make the flow more clear.

No functional changes.

Implement POSIX Curses functions immedok(3) and syncok(3).

Prepare curses for the possibility of changing from termcap to terminfo.
term.h #defines lines, pad_char and no_color_video macros which conflict
with existing curses code. We change lines to alines and nlines depending
on use, pad_char to padchar and no_color_video becomes no_color_attributes
but with a strong alias from no_color_video.

Merge in wide curses code done as a Summer of Code project by
Ruibiao Qiu.

Apply the changes that add debug "areas" on HEAD to the wcurses branch.
Add correspending changes to the debug code that is only present on the branch.

Merge wide curses.

Wide curses merge