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path: root/system/ncurses/ncurses-6.3-20220101.patch
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# ncurses 6.3 - patch 20220101 - Thomas E. Dickey
#
# ------------------------------------------------------------------------------
#
# Ncurses 6.3 is at
# 	ftp://ftp.invisible-island.net/ncurses/
#	https://invisible-mirror.net/archives/ncurses/
#	https://ftp.gnu.org/gnu/ncurses/
#
# Patches for ncurses 6.3 can be found at
# 	ftp://ftp.invisible-island.net/ncurses/6.3
#	https://invisible-mirror.net/archives/ncurses/6.3
#
# ------------------------------------------------------------------------------
# ftp://ftp.invisible-island.net/ncurses/6.3/ncurses-6.3-20220101.patch.gz
# patch by Thomas E. Dickey <dickey@invisible-island.net>
# created  Sun Jan  2 01:07:07 UTC 2022
# ------------------------------------------------------------------------------
# Ada95/package/debian/copyright        |    2 
# COPYING                               |    4 
# NEWS                                  |    8 +
# VERSION                               |    2 
# dist.mk                               |    6 -
# doc/html/man/adacurses6-config.1.html |    2 
# doc/html/man/captoinfo.1m.html        |    2 
# doc/html/man/clear.1.html             |    2 
# doc/html/man/curs_termcap.3x.html     |   44 +++++++--
# doc/html/man/curs_terminfo.3x.html    |  146 +++++++++++++++++++-------------
# doc/html/man/form.3x.html             |    2 
# doc/html/man/infocmp.1m.html          |    2 
# doc/html/man/infotocap.1m.html        |    2 
# doc/html/man/menu.3x.html             |    2 
# doc/html/man/ncurses.3x.html          |    2 
# doc/html/man/ncurses6-config.1.html   |    2 
# doc/html/man/panel.3x.html            |    2 
# doc/html/man/tabs.1.html              |    2 
# doc/html/man/terminfo.5.html          |    2 
# doc/html/man/tic.1m.html              |    2 
# doc/html/man/toe.1m.html              |    2 
# doc/html/man/tput.1.html              |    2 
# doc/html/man/tset.1.html              |    2 
# man/curs_termcap.3x                   |   36 ++++++-
# man/curs_terminfo.3x                  |   31 ++++++
# package/debian-mingw/changelog        |    4 
# package/debian-mingw/copyright        |    2 
# package/debian-mingw64/changelog      |    4 
# package/debian-mingw64/copyright      |    2 
# package/debian/changelog              |    4 
# package/debian/copyright              |    2 
# package/mingw-ncurses.nsi             |    6 -
# package/mingw-ncurses.spec            |    2 
# package/ncurses.spec                  |    2 
# package/ncursest.spec                 |    2 
# test/package/debian-mingw/copyright   |    2 
# test/package/debian-mingw64/copyright |    2 
# test/package/debian/copyright         |    2 
# 38 files changed, 228 insertions(+), 119 deletions(-)
# ------------------------------------------------------------------------------
Index: Ada95/package/debian/copyright
--- ncurses-6.3-20211225+/Ada95/package/debian/copyright	2021-01-01 09:54:30.000000000 +0000
+++ ncurses-6.3-20220101/Ada95/package/debian/copyright	2022-01-02 00:28:07.000000000 +0000
@@ -4,7 +4,7 @@
 
 -------------------------------------------------------------------------------
 Files: *
-Copyright: 2017-2020,2021 by Thomas E. Dickey
+Copyright: 2017-2021,2022 by Thomas E. Dickey
 Copyright: 1998-2016,2017 Free Software Foundation, Inc.
 Licence: X11
 
Index: COPYING
Prereq:  1.10 
--- ncurses-6.3-20211225+/COPYING	2021-01-01 09:54:30.000000000 +0000
+++ ncurses-6.3-20220101/COPYING	2022-01-01 11:47:50.000000000 +0000
@@ -1,4 +1,4 @@
-Copyright 2018-2020,2021 Thomas E. Dickey
+Copyright 2018-2021,2022 Thomas E. Dickey
 Copyright 1998-2017,2018 Free Software Foundation, Inc.
 
 Permission is hereby granted, free of charge, to any person obtaining a
@@ -26,4 +26,4 @@
 authorization.
 
 -- vile:txtmode fc=72
--- $Id: COPYING,v 1.10 2021/01/01 09:54:30 tom Exp $
+-- $Id: COPYING,v 1.11 2022/01/01 11:47:50 tom Exp $
Index: NEWS
Prereq:  1.3761 
--- ncurses-6.3-20211225+/NEWS	2021-12-26 00:29:27.000000000 +0000
+++ ncurses-6.3-20220101/NEWS	2022-01-01 23:59:36.000000000 +0000
@@ -1,5 +1,5 @@
 -------------------------------------------------------------------------------
--- Copyright 2018-2020,2021 Thomas E. Dickey                                 --
+-- Copyright 2018-2021,2022 Thomas E. Dickey                                 --
 -- Copyright 1998-2017,2018 Free Software Foundation, Inc.                   --
 --                                                                           --
 -- Permission is hereby granted, free of charge, to any person obtaining a   --
@@ -26,7 +26,7 @@
 -- sale, use or other dealings in this Software without prior written        --
 -- authorization.                                                            --
 -------------------------------------------------------------------------------
--- $Id: NEWS,v 1.3761 2021/12/26 00:29:27 tom Exp $
+-- $Id: NEWS,v 1.3764 2022/01/01 23:59:36 tom Exp $
 -------------------------------------------------------------------------------
 
 This is a log of changes that ncurses has gone through since Zeyd started
@@ -46,6 +46,10 @@
 Changes through 1.9.9e did not credit all contributions;
 it is not possible to add this information.
 
+20220101
+	+ add section on releasing memory to curs_termcap.3x and
+	  curs_terminfo.3x manpages.
+
 20211225
 	+ improve markup, e.g., for external manpage links in the manpages
 	  (prompted by report by Helge Kreutzmann).
Index: VERSION
--- ncurses-6.3-20211225+/VERSION	2021-12-24 20:26:19.000000000 +0000
+++ ncurses-6.3-20220101/VERSION	2022-01-01 11:46:49.000000000 +0000
@@ -1 +1 @@
-5:0:10	6.3	20211225
+5:0:10	6.3	20220101
Index: dist.mk
Prereq:  1.1458 
--- ncurses-6.3-20211225+/dist.mk	2021-12-25 22:11:07.000000000 +0000
+++ ncurses-6.3-20220101/dist.mk	2022-01-01 11:48:38.000000000 +0000
@@ -1,5 +1,5 @@
 ##############################################################################
-# Copyright 2018-2020,2021 Thomas E. Dickey                                  #
+# Copyright 2018-2021,2022 Thomas E. Dickey                                  #
 # Copyright 1998-2017,2018 Free Software Foundation, Inc.                    #
 #                                                                            #
 # Permission is hereby granted, free of charge, to any person obtaining a    #
@@ -26,7 +26,7 @@
 # use or other dealings in this Software without prior written               #
 # authorization.                                                             #
 ##############################################################################
-# $Id: dist.mk,v 1.1458 2021/12/25 22:11:07 tom Exp $
+# $Id: dist.mk,v 1.1460 2022/01/01 11:48:38 tom Exp $
 # Makefile for creating ncurses distributions.
 #
 # This only needs to be used directly as a makefile by developers, but
@@ -38,7 +38,7 @@
 # These define the major/minor/patch versions of ncurses.
 NCURSES_MAJOR = 6
 NCURSES_MINOR = 3
-NCURSES_PATCH = 20211225
+NCURSES_PATCH = 20220101
 
 # We don't append the patch to the version, since this only applies to releases
 VERSION = $(NCURSES_MAJOR).$(NCURSES_MINOR)
Index: doc/html/man/adacurses6-config.1.html
--- ncurses-6.3-20211225+/doc/html/man/adacurses6-config.1.html	2021-12-25 22:12:43.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/adacurses6-config.1.html	2022-01-02 00:19:47.000000000 +0000
@@ -126,7 +126,7 @@
 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 
Index: doc/html/man/captoinfo.1m.html
--- ncurses-6.3-20211225+/doc/html/man/captoinfo.1m.html	2021-12-25 22:12:43.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/captoinfo.1m.html	2022-01-02 00:19:47.000000000 +0000
@@ -199,7 +199,7 @@
 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
        <STRONG><A HREF="infocmp.1m.html">infocmp(1m)</A></STRONG>, <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 </PRE><H2><a name="h2-AUTHOR">AUTHOR</a></H2><PRE>
Index: doc/html/man/clear.1.html
--- ncurses-6.3-20211225+/doc/html/man/clear.1.html	2021-12-26 00:19:27.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/clear.1.html	2022-01-02 00:19:47.000000000 +0000
@@ -150,7 +150,7 @@
 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
        <STRONG><A HREF="tput.1.html">tput(1)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>, <STRONG>xterm(1)</STRONG>.
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 
Index: doc/html/man/curs_termcap.3x.html
--- ncurses-6.3-20211225+/doc/html/man/curs_termcap.3x.html	2021-12-26 00:04:53.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/curs_termcap.3x.html	2022-01-02 00:19:51.000000000 +0000
@@ -1,6 +1,6 @@
 <!--
   ****************************************************************************
-  * Copyright 2018-2020,2021 Thomas E. Dickey                                *
+  * Copyright 2018-2021,2022 Thomas E. Dickey                                *
   * Copyright 1998-2017,2018 Free Software Foundation, Inc.                  *
   *                                                                          *
   * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -27,7 +27,7 @@
   * sale, use or other dealings in this Software without prior written       *
   * authorization.                                                           *
   ****************************************************************************
-  * @Id: curs_termcap.3x,v 1.52 2021/12/25 21:31:00 tom Exp @
+  * @Id: curs_termcap.3x,v 1.55 2022/01/01 23:49:07 tom Exp @
 -->
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
 <HTML>
@@ -76,7 +76,7 @@
        been compiled.
 
 
-</PRE><H3><a name="h3-INITIALIZATION">INITIALIZATION</a></H3><PRE>
+</PRE><H3><a name="h3-Initialization">Initialization</a></H3><PRE>
        The <STRONG>tgetent</STRONG> routine loads the entry for <EM>name</EM>.  It returns:
 
           1  on success,
@@ -100,7 +100,7 @@
               ing.
 
 
-</PRE><H3><a name="h3-CAPABILITY-VALUES">CAPABILITY VALUES</a></H3><PRE>
+</PRE><H3><a name="h3-Capability-Values">Capability Values</a></H3><PRE>
        The <STRONG>tgetflag</STRONG> routine gets the boolean entry for <EM>id</EM>, or zero  if  it  is
        not available.
 
@@ -129,7 +129,7 @@
        and <STRONG>tgetstr</STRONG> are compared in lookups.
 
 
-</PRE><H3><a name="h3-FORMATTING-CAPABILITIES">FORMATTING CAPABILITIES</a></H3><PRE>
+</PRE><H3><a name="h3-Formatting-Capabilities">Formatting Capabilities</a></H3><PRE>
        The <STRONG>tgoto</STRONG> routine expands the given capability using the parameters.
 
        <STRONG>o</STRONG>   Because  the  capability may have padding characters, the output of
@@ -157,7 +157,7 @@
        It can retrieve capabilities by either termcap or terminfo name.
 
 
-</PRE><H3><a name="h3-GLOBAL-VARIABLES">GLOBAL VARIABLES</a></H3><PRE>
+</PRE><H3><a name="h3-Global-Variables">Global Variables</a></H3><PRE>
        The  variables <STRONG>PC</STRONG>, <STRONG>UP</STRONG> and <STRONG>BC</STRONG> are set by <STRONG>tgetent</STRONG> to the terminfo entry's
        data for <STRONG>pad_char</STRONG>, <STRONG>cursor_up</STRONG> and <STRONG>backspace_if_not_bs</STRONG>, respectively.  <STRONG>UP</STRONG>
        is  not used by ncurses.  <STRONG>PC</STRONG> is used in the <STRONG>tdelay_output</STRONG> function.  <STRONG>BC</STRONG>
@@ -165,6 +165,29 @@
        in a system-specific coding to reflect the terminal speed.
 
 
+</PRE><H3><a name="h3-Releasing-Memory">Releasing Memory</a></H3><PRE>
+       The  termcap  functions  provide  no  means for freeing memory, because
+       legacy termcap implementations used only the buffer areas  provided  by
+       the  caller  via <STRONG>tgetent</STRONG> and <STRONG>tgetstr</STRONG>.  Those buffers are unused in ter-
+       minfo.
+
+       On the other hand, terminfo allocates memory.  It uses <STRONG>setupterm</STRONG> to re-
+       trieve the data used by <STRONG>tgetent</STRONG> and the functions which return capabil-
+       ity values such as <STRONG>tgetstr</STRONG>.  One could use
+
+            <STRONG>del_curterm(cur_term);</STRONG>
+
+
+       to free this memory, but  there  is  an  additional  complication  with
+       ncurses.   It uses a fixed-size <EM>pool</EM> of storage locations, one per set-
+       ting of the <STRONG>TERM</STRONG> variable when <STRONG>tgetent</STRONG> is called.  The  <STRONG>screen(1)</STRONG>  pro-
+       gram relies upon this arrangement, to improve its performance.
+
+       An  application  which  uses only the low-level termcap functions could
+       free the memory using <STRONG>del_curterm</STRONG>, because the pool is freed using oth-
+       er functions (see <STRONG><A HREF="curs_memleaks.3x.html">curs_memleaks(3x)</A></STRONG>).
+
+
 </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
        Except  where  explicitly noted, routines that return an integer return
        <STRONG>ERR</STRONG> upon failure and <STRONG>OK</STRONG> (SVr4 only specifies "an  integer  value  other
@@ -322,10 +345,11 @@
 <li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
 <li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
 <ul>
-<li><a href="#h3-INITIALIZATION">INITIALIZATION</a></li>
-<li><a href="#h3-CAPABILITY-VALUES">CAPABILITY VALUES</a></li>
-<li><a href="#h3-FORMATTING-CAPABILITIES">FORMATTING CAPABILITIES</a></li>
-<li><a href="#h3-GLOBAL-VARIABLES">GLOBAL VARIABLES</a></li>
+<li><a href="#h3-Initialization">Initialization</a></li>
+<li><a href="#h3-Capability-Values">Capability Values</a></li>
+<li><a href="#h3-Formatting-Capabilities">Formatting Capabilities</a></li>
+<li><a href="#h3-Global-Variables">Global Variables</a></li>
+<li><a href="#h3-Releasing-Memory">Releasing Memory</a></li>
 </ul>
 </li>
 <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
Index: doc/html/man/curs_terminfo.3x.html
--- ncurses-6.3-20211225+/doc/html/man/curs_terminfo.3x.html	2021-12-26 00:04:53.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/curs_terminfo.3x.html	2022-01-02 00:19:51.000000000 +0000
@@ -1,6 +1,6 @@
 <!--
   ****************************************************************************
-  * Copyright 2018-2020,2021 Thomas E. Dickey                                *
+  * Copyright 2018-2021,2022 Thomas E. Dickey                                *
   * Copyright 1998-2016,2017 Free Software Foundation, Inc.                  *
   *                                                                          *
   * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -27,7 +27,9 @@
   * sale, use or other dealings in this Software without prior written       *
   * authorization.                                                           *
   ****************************************************************************
-  * @Id: curs_terminfo.3x,v 1.79 2021/12/25 21:34:58 tom Exp @
+  * @Id: curs_terminfo.3x,v 1.80 2022/01/01 21:50:06 tom Exp @
+  * ***************************************************************************
+  * ***************************************************************************
   * ***************************************************************************
   * ***************************************************************************
   * ***************************************************************************
@@ -348,9 +350,34 @@
               <STRONG>const</STRONG> <STRONG>char</STRONG> <STRONG>*strnames[]</STRONG>, <STRONG>*strcodes[]</STRONG>, <STRONG>*strfnames[]</STRONG>
 
 
+</PRE><H3><a name="h3-Releasing-Memory">Releasing Memory</a></H3><PRE>
+       Each successful call to <STRONG>setupterm</STRONG> allocates memory to hold the terminal
+       description.  As a side-effect, it sets <STRONG>cur_term</STRONG> to point to this memo-
+       ry.  If an application calls
+
+            <STRONG>del_curterm(cur_term);</STRONG>
+
+       the memory will be freed.
+
+       The formatting functions <STRONG>tparm</STRONG> and <STRONG>tiparm</STRONG> extend the storage  allocated
+       by <STRONG>setupterm</STRONG>:
+
+       <STRONG>o</STRONG>   the  "static"  terminfo variables [a-z].  Before ncurses 6.3, those
+           were shared by all screens.  With ncurses 6.3, those are  allocated
+           per screen.  See <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG> for details.
+
+       <STRONG>o</STRONG>   to  improve performance, ncurses 6.3 caches the result of analyzing
+           terminfo strings for their parameter types.  That is  stored  as  a
+           binary tree referenced from the <STRONG>TERMINAL</STRONG> structure.
+
+       The higher-level <STRONG>initscr</STRONG> and <STRONG>newterm</STRONG> functions use <STRONG>setupterm</STRONG>.  Normally
+       they do not free this memory, but it is possible to do that  using  the
+       <STRONG><A HREF="curs_initscr.3x.html">delscreen(3x)</A></STRONG> function.
+
+
 </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
-       Routines that return an integer return <STRONG>ERR</STRONG> upon failure  and  <STRONG>OK</STRONG>  (SVr4
-       only  specifies "an integer value other than <STRONG>ERR</STRONG>") upon successful com-
+       Routines  that  return  an integer return <STRONG>ERR</STRONG> upon failure and <STRONG>OK</STRONG> (SVr4
+       only specifies "an integer value other than <STRONG>ERR</STRONG>") upon successful  com-
        pletion, unless otherwise noted in the preceding routine descriptions.
 
        Routines that return pointers always return <STRONG>NULL</STRONG> on error.
@@ -372,25 +399,25 @@
                ditions are documented above.
 
           <STRONG>tputs</STRONG>
-               returns  an error if the string parameter is null.  It does not
-               detect I/O errors: X/Open states that <STRONG>tputs</STRONG> ignores the  return
+               returns an error if the string parameter is null.  It does  not
+               detect  I/O errors: X/Open states that <STRONG>tputs</STRONG> ignores the return
                value of the output function <EM>putc</EM>.
 
 
 </PRE><H3><a name="h3-Compatibility-macros">Compatibility macros</a></H3><PRE>
-       This  implementation  provides a few macros for compatibility with sys-
+       This implementation provides a few macros for compatibility  with  sys-
        tems  before  SVr4  (see  <EM>HISTORY</EM>).   Those  include  <STRONG>crmode</STRONG>,  <STRONG>fixterm</STRONG>,
        <STRONG>gettmode</STRONG>, <STRONG>nocrmode</STRONG>, <STRONG>resetterm</STRONG>, <STRONG>saveterm</STRONG>, and <STRONG>setterm</STRONG>.
 
-       In  SVr4,  those  are  found in <STRONG>&lt;curses.h&gt;</STRONG>, but except for <STRONG>setterm</STRONG>, are
+       In SVr4, those are found in <STRONG>&lt;curses.h&gt;</STRONG>, but  except  for  <STRONG>setterm</STRONG>,  are
        likewise macros.  The one function, <STRONG>setterm</STRONG>, is mentioned in the manual
-       page.   The  manual page notes that the <STRONG>setterm</STRONG> routine was replaced by
+       page.  The manual page notes that the <STRONG>setterm</STRONG> routine was  replaced  by
        <STRONG>setupterm</STRONG>, stating that the call:
 
              <STRONG>setupterm(</STRONG><EM>term</EM><STRONG>,</STRONG> <STRONG>1,</STRONG> <STRONG>(int</STRONG> <STRONG>*)0)</STRONG>
 
        provides the same functionality as <STRONG>setterm(</STRONG><EM>term</EM><STRONG>)</STRONG>, and is not recommend-
-       ed  for  new programs.  This implementation provides each of those sym-
+       ed for new programs.  This implementation provides each of  those  sym-
        bols as macros for BSD compatibility,
 
 
@@ -403,7 +430,7 @@
        fixterm     restore tty to "in curses" state
        gettmode    establish current tty modes
        mvcur       low level cursor motion
-       putp        utility  function that uses <STRONG>tputs</STRONG> to send char-
+       putp        utility function that uses <STRONG>tputs</STRONG> to send  char-
                    acters via <STRONG>putchar</STRONG>.
        resetterm   set tty modes to "out of curses" state
        resetty     reset tty flags to stored value
@@ -414,10 +441,10 @@
        tparm       instantiate a string expression with parameters
        tputs       apply padding information to a string
        vidattr     like <STRONG>vidputs</STRONG>, but outputs through <STRONG>putchar</STRONG>
-       vidputs     output a string to put terminal in a  specified
+       vidputs     output  a string to put terminal in a specified
                    video attribute mode
 
-       The  programming  manual  also mentioned functions provided for termcap
+       The programming manual also mentioned functions  provided  for  termcap
        compatibility (commenting that they "may go away at a later date"):
 
        <STRONG>Function</STRONG>   <STRONG>Description</STRONG>
@@ -430,19 +457,20 @@
        tputs      apply padding to capability, calling
                   a function to put characters
 
-       Early  terminfo  programs  obtained capability values from the <STRONG>TERMINAL</STRONG>
+       Early terminfo programs obtained capability values  from  the  <STRONG>TERMINAL</STRONG>
        structure initialized by <STRONG>setupterm</STRONG>.
 
-       SVr3 extended terminfo by adding functions to retrieve capability  val-
+       SVr3  extended terminfo by adding functions to retrieve capability val-
        ues (like the termcap interface), and reusing tgoto and tputs:
 
        <STRONG>Function</STRONG>    <STRONG>Description</STRONG>
        -------------------------------------------
        tigetflag   get boolean entry for given <EM>id</EM>
+
        tigetnum    get numeric entry for given <EM>id</EM>
        tigetstr    get string entry for given <EM>id</EM>
 
-       SVr3  also replaced several of the SVr2 terminfo functions which had no
+       SVr3 also replaced several of the SVr2 terminfo functions which had  no
        counterpart in the termcap interface, documenting them as obsolete:
 
        <STRONG>Function</STRONG>    <STRONG>Replaced</STRONG> <STRONG>by</STRONG>
@@ -455,20 +483,20 @@
        saveterm    def_prog_mode
        setterm     setupterm
 
-       SVr3 kept the <STRONG>mvcur</STRONG>, <STRONG>vidattr</STRONG> and <STRONG>vidputs</STRONG> functions,  along  with  <STRONG>putp</STRONG>,
-       <STRONG>tparm</STRONG>  and  <STRONG>tputs</STRONG>.  The latter were needed to support padding, and han-
-       dling functions such as <STRONG>vidattr</STRONG> (which used more than the  two  parame-
+       SVr3  kept  the  <STRONG>mvcur</STRONG>, <STRONG>vidattr</STRONG> and <STRONG>vidputs</STRONG> functions, along with <STRONG>putp</STRONG>,
+       <STRONG>tparm</STRONG> and <STRONG>tputs</STRONG>.  The latter were needed to support padding,  and  han-
+       dling  functions  such as <STRONG>vidattr</STRONG> (which used more than the two parame-
        ters supported by <STRONG>tgoto</STRONG>).
 
-       SVr3  introduced  the functions for switching between terminal descrip-
+       SVr3 introduced the functions for switching between  terminal  descrip-
        tions, e.g., <STRONG>set_curterm</STRONG>.  Some of that was incremental improvements to
        the SVr2 library:
 
-       <STRONG>o</STRONG>   The  <STRONG>TERMINAL</STRONG>  type  definition  was introduced in SVr3.01, for the
+       <STRONG>o</STRONG>   The <STRONG>TERMINAL</STRONG> type definition was introduced  in  SVr3.01,  for  the
            <STRONG>term</STRONG> structure provided in SVr2.
 
-       <STRONG>o</STRONG>   The various global variables such as <STRONG>boolnames</STRONG>  were  mentioned  in
-           the  programming  manual  at  this point, though the variables were
+       <STRONG>o</STRONG>   The  various  global  variables such as <STRONG>boolnames</STRONG> were mentioned in
+           the programming manual at this point,  though  the  variables  were
            provided in SVr2.
 
        SVr4 added the <STRONG>vid_attr</STRONG> and <STRONG>vid_puts</STRONG> functions.
@@ -483,15 +511,15 @@
 </PRE><H3><a name="h3-Legacy-functions">Legacy functions</a></H3><PRE>
        X/Open notes that <STRONG>vidattr</STRONG> and <STRONG>vidputs</STRONG> may be macros.
 
-       The function <STRONG>setterm</STRONG> is not described by X/Open and must be  considered
+       The  function <STRONG>setterm</STRONG> is not described by X/Open and must be considered
        non-portable.  All other functions are as described by X/Open.
 
 
 </PRE><H3><a name="h3-Legacy-data">Legacy data</a></H3><PRE>
-       <STRONG>setupterm</STRONG>  copies  the terminal name to the array <STRONG>ttytype</STRONG>.  This is not
+       <STRONG>setupterm</STRONG> copies the terminal name to the array <STRONG>ttytype</STRONG>.  This  is  not
        part of X/Open Curses, but is assumed by some applications.
 
-       Other implementions may not declare the capability name  arrays.   Some
+       Other  implementions  may not declare the capability name arrays.  Some
        provide them without declaring them.  X/Open does not specify them.
 
        Extended terminal capability names, e.g., as defined by <STRONG>tic</STRONG> <STRONG>-x</STRONG>, are not
@@ -499,14 +527,14 @@
 
 
 </PRE><H3><a name="h3-Output-buffering">Output buffering</a></H3><PRE>
-       Older versions of <STRONG>ncurses</STRONG> assumed that the file  descriptor  passed  to
+       Older  versions  of  <STRONG>ncurses</STRONG> assumed that the file descriptor passed to
        <STRONG>setupterm</STRONG> from <STRONG>initscr</STRONG> or <STRONG>newterm</STRONG> uses buffered I/O, and would write to
-       the corresponding stream.  In addition to the limitation that the  ter-
-       minal  was  left in block-buffered mode on exit (like System V curses),
-       it was problematic because <STRONG>ncurses</STRONG> did not  allow  a  reliable  way  to
+       the  corresponding stream.  In addition to the limitation that the ter-
+       minal was left in block-buffered mode on exit (like System  V  curses),
+       it  was  problematic  because  <STRONG>ncurses</STRONG>  did not allow a reliable way to
        cleanup on receiving SIGTSTP.
 
-       The  current version (ncurses6) uses output buffers managed directly by
+       The current version (ncurses6) uses output buffers managed directly  by
        <STRONG>ncurses</STRONG>.  Some of the low-level functions described in this manual page
        write to the standard output.  They are not signal-safe.  The high-lev-
        el functions in <STRONG>ncurses</STRONG> use alternate versions of these functions using
@@ -515,70 +543,71 @@
 
 </PRE><H3><a name="h3-Function-prototypes">Function prototypes</a></H3><PRE>
        The X/Open Curses prototypes are based on the SVr4 curses header decla-
-       rations, which were defined at the same time the C language  was  first
+       rations,  which  were defined at the same time the C language was first
        standardized in the late 1980s.
 
-       <STRONG>o</STRONG>   X/Open  Curses  uses  <STRONG>const</STRONG>  less  effectively  than a later design
-           might, in some cases applying it needlessly to values  are  already
-           constant,  and  in most cases overlooking parameters which normally
-           would use <STRONG>const</STRONG>.  Using constant parameters for functions which  do
+       <STRONG>o</STRONG>   X/Open Curses uses <STRONG>const</STRONG>  less  effectively  than  a  later  design
+           might,  in  some cases applying it needlessly to values are already
+           constant, and in most cases overlooking parameters  which  normally
+           would  use <STRONG>const</STRONG>.  Using constant parameters for functions which do
            not use <STRONG>const</STRONG> may prevent the program from compiling.  On the other
            hand, <EM>writable</EM> <EM>strings</EM> are an obsolescent feature.
 
-           As an extension, this implementation can be  configured  to  change
-           the  function prototypes to use the <STRONG>const</STRONG> keyword.  The ncurses ABI
+           As  an  extension,  this implementation can be configured to change
+           the function prototypes to use the <STRONG>const</STRONG> keyword.  The ncurses  ABI
            6 enables this feature by default.
 
-       <STRONG>o</STRONG>   X/Open Curses prototypes <STRONG>tparm</STRONG> with a fixed number  of  parameters,
+       <STRONG>o</STRONG>   X/Open  Curses  prototypes <STRONG>tparm</STRONG> with a fixed number of parameters,
            rather than a variable argument list.
 
-           This  implementation uses a variable argument list, but can be con-
-           figured to use the  fixed-parameter  list.   Portable  applications
-           should  provide  9 parameters after the format; zeroes are fine for
+           This implementation uses a variable argument list, but can be  con-
+           figured  to  use  the  fixed-parameter list.  Portable applications
+           should provide 9 parameters after the format; zeroes are  fine  for
            this purpose.
 
-           In response to review comments by Thomas E. Dickey,  X/Open  Curses
+           In  response  to review comments by Thomas E. Dickey, X/Open Curses
            Issue 7 proposed the <STRONG>tiparm</STRONG> function in mid-2009.
 
 
 </PRE><H3><a name="h3-Special-TERM-treatment">Special TERM treatment</a></H3><PRE>
        If configured to use the terminal-driver, e.g., for the MinGW port,
 
-       <STRONG>o</STRONG>   <STRONG>setupterm</STRONG>  interprets  a missing/empty TERM variable as the special
+       <STRONG>o</STRONG>   <STRONG>setupterm</STRONG> interprets a missing/empty TERM variable as  the  special
            value "unknown".
 
-       <STRONG>o</STRONG>   <STRONG>setupterm</STRONG> allows explicit use of the the windows console driver  by
-           checking  if $TERM is set to "#win32con" or an abbreviation of that
+       <STRONG>o</STRONG>   <STRONG>setupterm</STRONG>  allows explicit use of the the windows console driver by
+           checking if $TERM is set to "#win32con" or an abbreviation of  that
            string.
 
 
 </PRE><H3><a name="h3-Other-portability-issues">Other portability issues</a></H3><PRE>
-       In System V Release 4, <STRONG>set_curterm</STRONG> has an <STRONG>int</STRONG> return type  and  returns
+       In  System  V Release 4, <STRONG>set_curterm</STRONG> has an <STRONG>int</STRONG> return type and returns
        <STRONG>OK</STRONG> or <STRONG>ERR</STRONG>.  We have chosen to implement the X/Open Curses semantics.
 
-       In  System  V  Release  4, the third argument of <STRONG>tputs</STRONG> has the type <STRONG>int</STRONG>
+       In System V Release 4, the third argument of <STRONG>tputs</STRONG>  has  the  type  <STRONG>int</STRONG>
        <STRONG>(*putc)(char)</STRONG>.
 
-       At least one implementation of X/Open Curses (Solaris) returns a  value
-       other  than  <STRONG>OK</STRONG>/<STRONG>ERR</STRONG> from <STRONG>tputs</STRONG>.  That returns the length of the string,
+       At  least one implementation of X/Open Curses (Solaris) returns a value
+       other than <STRONG>OK</STRONG>/<STRONG>ERR</STRONG> from <STRONG>tputs</STRONG>.  That returns the length of  the  string,
        and does no error-checking.
 
-       X/Open notes that after calling <STRONG>mvcur</STRONG>, the curses state may  not  match
+       X/Open  notes  that after calling <STRONG>mvcur</STRONG>, the curses state may not match
        the actual terminal state, and that an application should touch and re-
        fresh the window before resuming normal curses calls.  Both <STRONG>ncurses</STRONG> and
-       System  V  Release 4 curses implement <STRONG>mvcur</STRONG> using the SCREEN data allo-
-       cated in either <STRONG>initscr</STRONG> or <STRONG>newterm</STRONG>.  So though it is  documented  as  a
-       terminfo  function, <STRONG>mvcur</STRONG> is really a curses function which is not well
+       System V Release 4 curses implement <STRONG>mvcur</STRONG> using the SCREEN  data  allo-
+       cated  in  either  <STRONG>initscr</STRONG> or <STRONG>newterm</STRONG>.  So though it is documented as a
+       terminfo function, <STRONG>mvcur</STRONG> is really a curses function which is not  well
        specified.
 
-       X/Open states that the old location must be given for <STRONG>mvcur</STRONG>.  This  im-
-       plementation  allows  the caller to use -1's for the old ordinates.  In
+       X/Open  states that the old location must be given for <STRONG>mvcur</STRONG>.  This im-
+       plementation allows the caller to use -1's for the old  ordinates.   In
        that case, the old location is unknown.
 
 
 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
-       <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>,   <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>,   <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>,    <STRONG><A HREF="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>,
-       <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>, <STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG>, <STRONG>putc(3)</STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>
+       <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>,   <STRONG><A HREF="curs_initscr.3x.html">curs_initscr(3x)</A></STRONG>,   <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>,   <STRONG><A HREF="curs_memleaks.3x.html">curs_memleaks(3x)</A></STRONG>,
+       <STRONG><A HREF="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>, <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>, <STRONG><A HREF="term_variables.3x.html">term_variables(3x)</A></STRONG>, <STRONG>putc(3)</STRONG>, <STRONG>ter-</STRONG>
+       <STRONG><A HREF="terminfo.5.html">minfo(5)</A></STRONG>
 
 
 
@@ -596,6 +625,7 @@
 <li><a href="#h3-Output-Functions">Output Functions</a></li>
 <li><a href="#h3-Terminal-Capability-Functions">Terminal Capability Functions</a></li>
 <li><a href="#h3-Terminal-Capability-Names">Terminal Capability Names</a></li>
+<li><a href="#h3-Releasing-Memory">Releasing Memory</a></li>
 </ul>
 </li>
 <li><a href="#h2-RETURN-VALUE">RETURN VALUE</a>
Index: doc/html/man/form.3x.html
--- ncurses-6.3-20211225+/doc/html/man/form.3x.html	2021-12-25 22:12:46.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/form.3x.html	2022-01-02 00:19:52.000000000 +0000
@@ -248,7 +248,7 @@
        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG> and related pages whose names  begin  "form_"  for  detailed
        descriptions of the entry points.
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 
Index: doc/html/man/infocmp.1m.html
--- ncurses-6.3-20211225+/doc/html/man/infocmp.1m.html	2021-12-25 22:12:47.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/infocmp.1m.html	2022-01-02 00:19:53.000000000 +0000
@@ -514,7 +514,7 @@
 
        https://invisible-island.net/ncurses/tctest.html
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 </PRE><H2><a name="h2-AUTHOR">AUTHOR</a></H2><PRE>
Index: doc/html/man/infotocap.1m.html
--- ncurses-6.3-20211225+/doc/html/man/infotocap.1m.html	2021-12-25 22:12:47.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/infotocap.1m.html	2022-01-02 00:19:53.000000000 +0000
@@ -91,7 +91,7 @@
 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
        <STRONG><A HREF="infocmp.1m.html">infocmp(1m)</A></STRONG>, <STRONG><A HREF="tic.1m.html">tic(1m)</A></STRONG>, <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 </PRE><H2><a name="h2-AUTHOR">AUTHOR</a></H2><PRE>
Index: doc/html/man/menu.3x.html
--- ncurses-6.3-20211225+/doc/html/man/menu.3x.html	2021-12-25 22:12:47.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/menu.3x.html	2022-01-02 00:19:53.000000000 +0000
@@ -223,7 +223,7 @@
        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG> and related pages whose names  begin  "menu_"  for  detailed
        descriptions of the entry points.
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 
Index: doc/html/man/ncurses.3x.html
--- ncurses-6.3-20211225+/doc/html/man/ncurses.3x.html	2021-12-26 00:04:56.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/ncurses.3x.html	2022-01-02 00:19:55.000000000 +0000
@@ -60,7 +60,7 @@
        method of updating  character  screens  with  reasonable  optimization.
        This  implementation  is  "new  curses"  (ncurses)  and is the approved
        replacement for 4.4BSD classic curses,  which  has  been  discontinued.
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
        The  <STRONG>ncurses</STRONG>  library emulates the curses library of System V Release 4
        UNIX, and XPG4 (X/Open Portability Guide) curses  (also  known  as  XSI
Index: doc/html/man/ncurses6-config.1.html
--- ncurses-6.3-20211225+/doc/html/man/ncurses6-config.1.html	2021-12-25 22:12:48.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/ncurses6-config.1.html	2022-01-02 00:19:55.000000000 +0000
@@ -113,7 +113,7 @@
 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 
Index: doc/html/man/panel.3x.html
--- ncurses-6.3-20211225+/doc/html/man/panel.3x.html	2021-12-25 22:12:48.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/panel.3x.html	2022-01-02 00:19:55.000000000 +0000
@@ -281,7 +281,7 @@
 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
        <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>,
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 </PRE><H2><a name="h2-AUTHOR">AUTHOR</a></H2><PRE>
Index: doc/html/man/tabs.1.html
--- ncurses-6.3-20211225+/doc/html/man/tabs.1.html	2021-12-25 22:12:48.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/tabs.1.html	2022-01-02 00:19:55.000000000 +0000
@@ -252,7 +252,7 @@
 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
        <STRONG><A HREF="infocmp.1m.html">infocmp(1m)</A></STRONG>, <STRONG><A HREF="tset.1.html">tset(1)</A></STRONG>, <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 
Index: doc/html/man/terminfo.5.html
--- ncurses-6.3-20211225+/doc/html/man/terminfo.5.html	2021-12-25 22:12:49.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/terminfo.5.html	2022-01-02 00:19:56.000000000 +0000
@@ -106,7 +106,7 @@
        have, by specifying how to perform screen operations, and by specifying
        padding requirements and initialization sequences.
 
-       This manual describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This manual describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 </PRE><H3><a name="h3-Terminfo-Entry-Syntax">Terminfo Entry Syntax</a></H3><PRE>
Index: doc/html/man/tic.1m.html
--- ncurses-6.3-20211225+/doc/html/man/tic.1m.html	2021-12-25 22:12:50.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/tic.1m.html	2022-01-02 00:19:56.000000000 +0000
@@ -461,7 +461,7 @@
        <STRONG><A HREF="captoinfo.1m.html">captoinfo(1m)</A></STRONG>,   <STRONG><A HREF="infocmp.1m.html">infocmp(1m)</A></STRONG>,   <STRONG><A HREF="infotocap.1m.html">infotocap(1m)</A></STRONG>,   <STRONG><A HREF="toe.1m.html">toe(1m)</A></STRONG>,   <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>,
        <STRONG><A HREF="term.5.html">term(5)</A></STRONG>.  <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.  <STRONG><A HREF="user_caps.5.html">user_caps(5)</A></STRONG>.
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 </PRE><H2><a name="h2-AUTHOR">AUTHOR</a></H2><PRE>
Index: doc/html/man/toe.1m.html
--- ncurses-6.3-20211225+/doc/html/man/toe.1m.html	2021-12-25 22:12:50.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/toe.1m.html	2022-01-02 00:19:56.000000000 +0000
@@ -171,7 +171,7 @@
        <STRONG><A HREF="captoinfo.1m.html">captoinfo(1m)</A></STRONG>,   <STRONG><A HREF="infocmp.1m.html">infocmp(1m)</A></STRONG>,   <STRONG><A HREF="infotocap.1m.html">infotocap(1m)</A></STRONG>,   <STRONG><A HREF="tic.1m.html">tic(1m)</A></STRONG>,   <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>,
        <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 
Index: doc/html/man/tput.1.html
--- ncurses-6.3-20211225+/doc/html/man/tput.1.html	2021-12-26 00:04:56.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/tput.1.html	2022-01-02 00:19:56.000000000 +0000
@@ -545,7 +545,7 @@
 </PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
        <STRONG><A HREF="clear.1.html">clear(1)</A></STRONG>, <STRONG>stty(1)</STRONG>, <STRONG><A HREF="tabs.1.html">tabs(1)</A></STRONG>, <STRONG><A HREF="tset.1.html">tset(1)</A></STRONG>, <STRONG><A HREF="curs_termcap.3x.html">curs_termcap(3x)</A></STRONG>, <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>.
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 
Index: doc/html/man/tset.1.html
--- ncurses-6.3-20211225+/doc/html/man/tset.1.html	2021-12-26 00:04:57.000000000 +0000
+++ ncurses-6.3-20220101/doc/html/man/tset.1.html	2022-01-02 00:19:56.000000000 +0000
@@ -391,7 +391,7 @@
        <STRONG>csh(1)</STRONG>,   <STRONG>sh(1)</STRONG>,   <STRONG>stty(1)</STRONG>,   <STRONG><A HREF="curs_terminfo.3x.html">curs_terminfo(3x)</A></STRONG>,  <STRONG>tty(4)</STRONG>,  <STRONG><A HREF="terminfo.5.html">terminfo(5)</A></STRONG>,
        <STRONG>ttys(5)</STRONG>, <STRONG>environ(7)</STRONG>
 
-       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20211225).
+       This describes <STRONG>ncurses</STRONG> version 6.3 (patch 20220101).
 
 
 
Index: man/curs_termcap.3x
Prereq:  1.52 
--- ncurses-6.3-20211225+/man/curs_termcap.3x	2021-12-25 21:31:00.000000000 +0000
+++ ncurses-6.3-20220101/man/curs_termcap.3x	2022-01-01 23:49:07.000000000 +0000
@@ -1,5 +1,5 @@
 .\"***************************************************************************
-.\" Copyright 2018-2020,2021 Thomas E. Dickey                                *
+.\" Copyright 2018-2021,2022 Thomas E. Dickey                                *
 .\" Copyright 1998-2017,2018 Free Software Foundation, Inc.                  *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -27,7 +27,7 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: curs_termcap.3x,v 1.52 2021/12/25 21:31:00 tom Exp $
+.\" $Id: curs_termcap.3x,v 1.55 2022/01/01 23:49:07 tom Exp $
 .TH curs_termcap 3X ""
 .ie \n(.g .ds `` \(lq
 .el       .ds `` ``
@@ -86,7 +86,7 @@
 Thus, they
 can only be used to query the capabilities of entries for which a
 terminfo entry has been compiled.
-.SS INITIALIZATION
+.SS Initialization
 .PP
 The \fBtgetent\fP routine loads the entry for \fIname\fP.
 It returns:
@@ -118,7 +118,7 @@
 description is marked with the \fIgeneric\fP capability,
 or if the terminal description has cursor-addressing.
 .RE
-.SS CAPABILITY VALUES
+.SS Capability Values
 .PP
 The \fBtgetflag\fP routine gets the boolean entry for \fIid\fP,
 or zero if it is not available.
@@ -152,7 +152,7 @@
 \fBtgetflag\fP,
 \fBtgetnum\fP and
 \fBtgetstr\fP are compared in lookups.
-.SS FORMATTING CAPABILITIES
+.SS Formatting Capabilities
 .PP
 The \fBtgoto\fP routine expands the given capability using the parameters.
 .bP
@@ -181,7 +181,7 @@
 The \fBtputs\fP routine is described on the \fBcurs_terminfo\fP(3X) manual
 page.
 It can retrieve capabilities by either termcap or terminfo name.
-.SS GLOBAL VARIABLES
+.SS Global Variables
 .PP
 The variables
 \fBPC\fP,
@@ -197,6 +197,30 @@
 \fBBC\fP is used in the \fBtgoto\fP emulation.
 The variable \fBospeed\fP is set by ncurses in a system-specific coding
 to reflect the terminal speed.
+.SS Releasing Memory
+The termcap functions provide no means for freeing memory,
+because legacy termcap implementations used only the buffer
+areas provided by the caller via \fBtgetent\fP and \fBtgetstr\fP.
+Those buffers are unused in terminfo.
+.PP
+On the other hand, terminfo allocates memory.
+It uses \fBsetupterm\fP to retrieve the data used by \fBtgetent\fP
+and the functions which return capability values such as \fBtgetstr\fP.
+One could use
+.sp
+	\fBdel_curterm(cur_term);\fP
+.sp
+.PP
+to free this memory, but there is an additional complication with ncurses.
+It uses a fixed-size \fIpool\fP of storage locations,
+one per setting of the \fBTERM\fP variable when \fBtgetent\fP is called.
+The \fBscreen\fP(1) program relies upon this arrangement,
+to improve its performance.
+.PP
+An application which uses only the low-level termcap functions could
+free the memory using \fBdel_curterm\fP,
+because the pool is freed using other functions
+(see \fBcurs_memleaks\fP(3X)).
 .
 .SH RETURN VALUE
 Except where explicitly noted,
Index: man/curs_terminfo.3x
Prereq:  1.79 
--- ncurses-6.3-20211225+/man/curs_terminfo.3x	2021-12-25 21:34:58.000000000 +0000
+++ ncurses-6.3-20220101/man/curs_terminfo.3x	2022-01-01 21:50:06.000000000 +0000
@@ -1,5 +1,5 @@
 .\"***************************************************************************
-.\" Copyright 2018-2020,2021 Thomas E. Dickey                                *
+.\" Copyright 2018-2021,2022 Thomas E. Dickey                                *
 .\" Copyright 1998-2016,2017 Free Software Foundation, Inc.                  *
 .\"                                                                          *
 .\" Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -27,7 +27,7 @@
 .\" authorization.                                                           *
 .\"***************************************************************************
 .\"
-.\" $Id: curs_terminfo.3x,v 1.79 2021/12/25 21:34:58 tom Exp $
+.\" $Id: curs_terminfo.3x,v 1.80 2022/01/01 21:50:06 tom Exp $
 .TH curs_terminfo 3X ""
 .ie \n(.g .ds `` \(lq
 .el       .ds `` ``
@@ -407,6 +407,32 @@
 .br
 \fBconst char *strnames[]\fP, \fB*strcodes[]\fP, \fB*strfnames[]\fP
 .RE
+.\" ***************************************************************************
+.SS Releasing Memory
+Each successful call to \fBsetupterm\fP allocates memory to hold the terminal
+description.  As a side-effect, it sets \fBcur_term\fP to point to this memory.
+If an application calls
+.sp
+	\fBdel_curterm(cur_term);\fP
+.sp
+the memory will be freed.
+.PP
+The formatting functions \fBtparm\fP and \fBtiparm\fP extend the storage
+allocated by \fBsetupterm\fP: 
+.bP
+the \*(``static\*('' terminfo variables [a-z].
+Before ncurses 6.3, those were shared by all screens.
+With ncurses 6.3, those are allocated per screen.
+See \fBterminfo\fP(\*n) for details.
+.bP
+to improve performance, ncurses 6.3 caches the result of analyzing terminfo
+strings for their parameter types.
+That is stored as a binary tree referenced from the \fBTERMINAL\fP structure.
+.PP
+The higher-level \fBinitscr\fP and \fBnewterm\fP functions use \fBsetupterm\fP.
+Normally they do not free this memory, but it is possible to do that using
+the \fBdelscreen\fP(3X) function.
+.\" ***************************************************************************
 .SH RETURN VALUE
 Routines that return an integer return \fBERR\fP upon failure and \fBOK\fP
 (SVr4 only specifies \*(``an integer value other than \fBERR\fP\*('')
@@ -675,6 +701,7 @@
 \fBcurses\fP(3X),
 \fBcurs_initscr\fP(3X),
 \fBcurs_kernel\fP(3X),
+\fBcurs_memleaks\fP(3X),
 \fBcurs_termcap\fP(3X),
 \fBcurs_variables\fP(3X),
 \fBterm_variables\fP(3X),
Index: package/debian-mingw/changelog
--- ncurses-6.3-20211225+/package/debian-mingw/changelog	2021-12-24 20:26:19.000000000 +0000
+++ ncurses-6.3-20220101/package/debian-mingw/changelog	2022-01-01 11:46:49.000000000 +0000
@@ -1,8 +1,8 @@
-ncurses6 (6.3+20211225) unstable; urgency=low
+ncurses6 (6.3+20220101) unstable; urgency=low
 
   * latest weekly patch
 
- -- Thomas E. Dickey <dickey@invisible-island.net>  Fri, 24 Dec 2021 15:26:19 -0500
+ -- Thomas E. Dickey <dickey@invisible-island.net>  Sat, 01 Jan 2022 06:46:49 -0500
 
 ncurses6 (5.9-20131005) unstable; urgency=low
 
Index: package/debian-mingw/copyright
--- ncurses-6.3-20211225+/package/debian-mingw/copyright	2021-01-01 09:54:30.000000000 +0000
+++ ncurses-6.3-20220101/package/debian-mingw/copyright	2022-01-02 00:28:07.000000000 +0000
@@ -5,7 +5,7 @@
 
 -------------------------------------------------------------------------------
 Files: *
-Copyright: 2017-2020,2021 by Thomas E. Dickey
+Copyright: 2017-2021,2022 by Thomas E. Dickey
 Copyright: 1998-2016,2017 Free Software Foundation, Inc.
 Licence: X11
 
Index: package/debian-mingw64/changelog
--- ncurses-6.3-20211225+/package/debian-mingw64/changelog	2021-12-24 20:26:19.000000000 +0000
+++ ncurses-6.3-20220101/package/debian-mingw64/changelog	2022-01-01 11:46:49.000000000 +0000
@@ -1,8 +1,8 @@
-ncurses6 (6.3+20211225) unstable; urgency=low
+ncurses6 (6.3+20220101) unstable; urgency=low
 
   * latest weekly patch
 
- -- Thomas E. Dickey <dickey@invisible-island.net>  Fri, 24 Dec 2021 15:26:19 -0500
+ -- Thomas E. Dickey <dickey@invisible-island.net>  Sat, 01 Jan 2022 06:46:49 -0500
 
 ncurses6 (5.9-20131005) unstable; urgency=low
 
Index: package/debian-mingw64/copyright
--- ncurses-6.3-20211225+/package/debian-mingw64/copyright	2021-01-01 09:54:30.000000000 +0000
+++ ncurses-6.3-20220101/package/debian-mingw64/copyright	2022-01-02 00:28:07.000000000 +0000
@@ -5,7 +5,7 @@
 
 -------------------------------------------------------------------------------
 Files: *
-Copyright: 2017-2020,2021 by Thomas E. Dickey
+Copyright: 2017-2021,2022 by Thomas E. Dickey
 Copyright: 1998-2016,2017 Free Software Foundation, Inc.
 Licence: X11
 
Index: package/debian/changelog
--- ncurses-6.3-20211225+/package/debian/changelog	2021-12-24 20:26:19.000000000 +0000
+++ ncurses-6.3-20220101/package/debian/changelog	2022-01-01 11:46:49.000000000 +0000
@@ -1,8 +1,8 @@
-ncurses6 (6.3+20211225) unstable; urgency=low
+ncurses6 (6.3+20220101) unstable; urgency=low
 
   * latest weekly patch
 
- -- Thomas E. Dickey <dickey@invisible-island.net>  Fri, 24 Dec 2021 15:26:19 -0500
+ -- Thomas E. Dickey <dickey@invisible-island.net>  Sat, 01 Jan 2022 06:46:49 -0500
 
 ncurses6 (5.9-20120608) unstable; urgency=low
 
Index: package/debian/copyright
--- ncurses-6.3-20211225+/package/debian/copyright	2021-01-01 09:54:30.000000000 +0000
+++ ncurses-6.3-20220101/package/debian/copyright	2022-01-02 00:28:07.000000000 +0000
@@ -5,7 +5,7 @@
 
 -------------------------------------------------------------------------------
 Files: *
-Copyright: 2017-2020,2021 by Thomas E. Dickey
+Copyright: 2017-2021,2022 by Thomas E. Dickey
 Copyright: 1998-2016,2017 Free Software Foundation, Inc.
 Licence: X11
 
Index: package/mingw-ncurses.nsi
Prereq:  1.499 
--- ncurses-6.3-20211225+/package/mingw-ncurses.nsi	2021-12-24 20:26:19.000000000 +0000
+++ ncurses-6.3-20220101/package/mingw-ncurses.nsi	2022-01-01 11:46:49.000000000 +0000
@@ -1,4 +1,4 @@
-; $Id: mingw-ncurses.nsi,v 1.499 2021/12/24 20:26:19 tom Exp $
+; $Id: mingw-ncurses.nsi,v 1.500 2022/01/01 11:46:49 tom Exp $
 
 ; TODO add examples
 ; TODO bump ABI to 6
@@ -9,8 +9,8 @@
 
 !define VERSION_MAJOR "6"
 !define VERSION_MINOR "3"
-!define VERSION_YYYY  "2021"
-!define VERSION_MMDD  "1225"
+!define VERSION_YYYY  "2022"
+!define VERSION_MMDD  "0101"
 !define VERSION_PATCH ${VERSION_YYYY}${VERSION_MMDD}
 
 !define MY_ABI   "5"
Index: package/mingw-ncurses.spec
--- ncurses-6.3-20211225+/package/mingw-ncurses.spec	2021-12-24 20:26:19.000000000 +0000
+++ ncurses-6.3-20220101/package/mingw-ncurses.spec	2022-01-01 11:46:49.000000000 +0000
@@ -3,7 +3,7 @@
 Summary: shared libraries for terminal handling
 Name: mingw32-ncurses6
 Version: 6.3
-Release: 20211225
+Release: 20220101
 License: X11
 Group: Development/Libraries
 Source: ncurses-%{version}-%{release}.tgz
Index: package/ncurses.spec
--- ncurses-6.3-20211225+/package/ncurses.spec	2021-12-24 20:26:19.000000000 +0000
+++ ncurses-6.3-20220101/package/ncurses.spec	2022-01-01 11:46:49.000000000 +0000
@@ -1,7 +1,7 @@
 Summary: shared libraries for terminal handling
 Name: ncurses6
 Version: 6.3
-Release: 20211225
+Release: 20220101
 License: X11
 Group: Development/Libraries
 Source: ncurses-%{version}-%{release}.tgz
Index: package/ncursest.spec
--- ncurses-6.3-20211225+/package/ncursest.spec	2021-12-24 20:26:19.000000000 +0000
+++ ncurses-6.3-20220101/package/ncursest.spec	2022-01-01 11:46:49.000000000 +0000
@@ -1,7 +1,7 @@
 Summary: Curses library with POSIX thread support.
 Name: ncursest6
 Version: 6.3
-Release: 20211225
+Release: 20220101
 License: X11
 Group: Development/Libraries
 Source: ncurses-%{version}-%{release}.tgz
Index: test/package/debian-mingw/copyright
--- ncurses-6.3-20211225+/test/package/debian-mingw/copyright	2021-01-01 09:54:30.000000000 +0000
+++ ncurses-6.3-20220101/test/package/debian-mingw/copyright	2022-01-02 00:28:07.000000000 +0000
@@ -4,7 +4,7 @@
 
 -------------------------------------------------------------------------------
 Files: *
-Copyright: 2017-2020,2021 Thomas E. Dickey
+Copyright: 2017-2021,2022 Thomas E. Dickey
 Copyright: 1998-2016,2017 Free Software Foundation, Inc.
 Licence: X11
 
Index: test/package/debian-mingw64/copyright
--- ncurses-6.3-20211225+/test/package/debian-mingw64/copyright	2021-01-01 09:54:30.000000000 +0000
+++ ncurses-6.3-20220101/test/package/debian-mingw64/copyright	2022-01-02 00:28:07.000000000 +0000
@@ -4,7 +4,7 @@
 
 -------------------------------------------------------------------------------
 Files: *
-Copyright: 2017-2020,2021 Thomas E. Dickey
+Copyright: 2017-2021,2022 Thomas E. Dickey
 Copyright: 1998-2016,2017 Free Software Foundation, Inc.
 Licence: X11
 
Index: test/package/debian/copyright
--- ncurses-6.3-20211225+/test/package/debian/copyright	2021-01-01 09:54:30.000000000 +0000
+++ ncurses-6.3-20220101/test/package/debian/copyright	2022-01-02 00:28:07.000000000 +0000
@@ -4,7 +4,7 @@
 
 -------------------------------------------------------------------------------
 Files: *
-Copyright: 2017-2020,2021 Thomas E. Dickey
+Copyright: 2017-2021,2022 Thomas E. Dickey
 Copyright: 1998-2016,2017 Free Software Foundation, Inc.
 Licence: X11