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.

Add/improve debug output for some routines.

Drop HAVE_WCHAR ifdefs from code that is not even compiled with !HAVE_WCHAR.

We still try to mainain the ability to build our curses with
!HAVE_WCHAR, but it doesn't make sense to provide stubs for new wide
API functions that just error out when !HAVE_WCHAR. Any code that
only uses old API (and can work with !HAVE_WCHAR curses) doesn't use
those new functions. The code that uses new API obviosly cannot work
when all the new API is stubbed out.

So the plan is to drop the stubs. This commit does that for files
that are not even compiled with !HAVE_WCHAR (not only those stubs are
useless, they were not even there to begin with).

Same object code is generated for the normal HAVE_WCHAR case. Nothing
is even recompiled for !HAVE_WCHAR.

Ok by blymn@ jdc@ roy@

branches: 1.5.14;
Add missing new line in debug print.

Rename the old __waddbytes function to _cursesi_waddbytes and add a
parameter that controls whether or not certain characters in the
string are interpreted or not (things like tab being expanded).

Make __waddbytes a wrapper for _cursesi_waddbytes that passes all
parameters and sets the flag for character interpretation for backward
compatibility.

Fix an incipient bug in _cursesi_waddbytes where garbage would have
been written to the terminal if the terminal TABSIZE was set > 8 and
character interpretation is on.

Convert all internal __waddbytes calls to use _cursesi_waddbytes, fix
the function prototypes and add a new flag that will be used later.

Fix the addchstr family functions so that they call _cursesi_waddbytes
with character interpretation off as per SUSV2.

branches: 1.3.6; 1.3.12;
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.

branches: 1.1.2;
Wide curses merge

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.

Add/improve debug output for some routines.

Drop HAVE_WCHAR ifdefs from code that is not even compiled with !HAVE_WCHAR.

We still try to mainain the ability to build our curses with
!HAVE_WCHAR, but it doesn't make sense to provide stubs for new wide
API functions that just error out when !HAVE_WCHAR. Any code that
only uses old API (and can work with !HAVE_WCHAR curses) doesn't use
those new functions. The code that uses new API obviosly cannot work
when all the new API is stubbed out.

So the plan is to drop the stubs. This commit does that for files
that are not even compiled with !HAVE_WCHAR (not only those stubs are
useless, they were not even there to begin with).

Same object code is generated for the normal HAVE_WCHAR case. Nothing
is even recompiled for !HAVE_WCHAR.

Ok by blymn@ jdc@ roy@

branches: 1.5.14;
Add missing new line in debug print.

Rename the old __waddbytes function to _cursesi_waddbytes and add a
parameter that controls whether or not certain characters in the
string are interpreted or not (things like tab being expanded).

Make __waddbytes a wrapper for _cursesi_waddbytes that passes all
parameters and sets the flag for character interpretation for backward
compatibility.

Fix an incipient bug in _cursesi_waddbytes where garbage would have
been written to the terminal if the terminal TABSIZE was set > 8 and
character interpretation is on.

Convert all internal __waddbytes calls to use _cursesi_waddbytes, fix
the function prototypes and add a new flag that will be used later.

Fix the addchstr family functions so that they call _cursesi_waddbytes
with character interpretation off as per SUSV2.

branches: 1.3.6; 1.3.12;
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.

branches: 1.1.2;
Wide curses merge

Add/improve debug output for some routines.

Drop HAVE_WCHAR ifdefs from code that is not even compiled with !HAVE_WCHAR.

We still try to mainain the ability to build our curses with
!HAVE_WCHAR, but it doesn't make sense to provide stubs for new wide
API functions that just error out when !HAVE_WCHAR. Any code that
only uses old API (and can work with !HAVE_WCHAR curses) doesn't use
those new functions. The code that uses new API obviosly cannot work
when all the new API is stubbed out.

So the plan is to drop the stubs. This commit does that for files
that are not even compiled with !HAVE_WCHAR (not only those stubs are
useless, they were not even there to begin with).

Same object code is generated for the normal HAVE_WCHAR case. Nothing
is even recompiled for !HAVE_WCHAR.

Ok by blymn@ jdc@ roy@

branches: 1.5.14;
Add missing new line in debug print.

Rename the old __waddbytes function to _cursesi_waddbytes and add a
parameter that controls whether or not certain characters in the
string are interpreted or not (things like tab being expanded).

Make __waddbytes a wrapper for _cursesi_waddbytes that passes all
parameters and sets the flag for character interpretation for backward
compatibility.

Fix an incipient bug in _cursesi_waddbytes where garbage would have
been written to the terminal if the terminal TABSIZE was set > 8 and
character interpretation is on.

Convert all internal __waddbytes calls to use _cursesi_waddbytes, fix
the function prototypes and add a new flag that will be used later.

Fix the addchstr family functions so that they call _cursesi_waddbytes
with character interpretation off as per SUSV2.

branches: 1.3.6; 1.3.12;
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.

branches: 1.1.2;
Wide curses merge

Add missing new line in debug print.

Rename the old __waddbytes function to _cursesi_waddbytes and add a
parameter that controls whether or not certain characters in the
string are interpreted or not (things like tab being expanded).

Make __waddbytes a wrapper for _cursesi_waddbytes that passes all
parameters and sets the flag for character interpretation for backward
compatibility.

Fix an incipient bug in _cursesi_waddbytes where garbage would have
been written to the terminal if the terminal TABSIZE was set > 8 and
character interpretation is on.

Convert all internal __waddbytes calls to use _cursesi_waddbytes, fix
the function prototypes and add a new flag that will be used later.

Fix the addchstr family functions so that they call _cursesi_waddbytes
with character interpretation off as per SUSV2.

branches: 1.3.6; 1.3.12;
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.

branches: 1.1.2;
Wide curses merge