Expand __CTRACE() to __nothing #ifndef DEBUG.

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

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

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

No functional changes.

Add debug "areas" that allow selective debugging by setting the
"CURSES_TRACE_MASK" environment variable. Postive vales include
debug areas, negative values exclude them.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22280, verified by myself.

PR/17352: David Laight: Curses core-dumps on windows > 1024 wide.

__STDC__ is always defined on NetBSD.

Fix `gcc -Wuninitialized`.
Use unctrl() for capability string when debugging.

Multiple fixes:
* Added Bill's fixes for errors when compiling with WARNS=1
* Incorporated fixes to make usage of unctrl consistent in debug and
made improvements to ctrace - it now timestamps it's

Multiple fixes:
* Added Bill's fixes for errors when compiling with WARNS=1
* Incorporated fixes to make usage of unctrl consistent in debug and
made improvements to ctrace - it now timestamps it's output better.
* Reduced the number of mallocs done by __init_getch by allocating key
structs in bunches instead of singly.
* Removed the shadowing of global declarations in newwin and subwin
functions

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Changed function to use ANSI style.

Include private header.
Make capability parser more generic (it is now also used by colour routines).
Note that the termcap file we use contains terminfo % escapes, which are
not always compatible wi

Include private header.
Make capability parser more generic (it is now also used by colour routines).
Note that the termcap file we use contains terminfo % escapes, which are
not always compatible with the termcap ones. We'll lose in those cases.

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Upgrades the standard NetBSD curses library to provide some
of the SYSV curses facilities. The added features are the collapsing
of arrow and function keysequences (as defined by termcap for the
ter

Upgrades the standard NetBSD curses library to provide some
of the SYSV curses facilities. The added features are the collapsing
of arrow and function keysequences (as defined by termcap for the
terminal) into symbolic code returns thus relieving the application of
recognising multi-character key sequences. Other features are the
capability to perform a timed wait for a key (good for when you are
not sure if there is a keypress ready or not) and the capability for
turning off the inter-key timeout when assembling multi-character
function keys.

this work was done by Julian Coleman <J.D.Coleman@newcastle.ac.uk>
and blymn@baea.com.au (Brett Lymn). i'm just integrating it. thanks
HEAPS guys!

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RCSid police, fix warnings

clean up import

repeat after me: "I hate rcs ids"

update to new version from berkeley. doesn't compile yet, nor
does it have rcsid's. this is for diffs.