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authorBaptiste Daroussin <bapt@FreeBSD.org>2020-02-19 16:58:06 +0000
committerBaptiste Daroussin <bapt@FreeBSD.org>2020-02-19 16:58:06 +0000
commit72c3fc31f590566e93496732d6fa769cd353e270 (patch)
treea62fdfa38fcc1f5b8e8680c144a09e8fa9436cb5 /doc/html/announce.html
parentf0179cb6083cc92e5947ae56e6a0a5c5328aead0 (diff)
downloadsrc-72c3fc31f590566e93496732d6fa769cd353e270.tar.gz
src-72c3fc31f590566e93496732d6fa769cd353e270.zip
import ncurses 6.2-20200215vendor/ncurses/6.2-20200215
Notes
Notes: svn path=/vendor/ncurses/dist/; revision=358125 svn path=/vendor/ncurses/6.2-20200215/; revision=358126; tag=vendor/ncurses/6.2-20200215
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@@ -1,7 +1,7 @@
<!--
- $Id: announce.html,v 1.59 2018/01/27 02:10:10 tom Exp $
+ $Id: announce.html,v 1.61 2020/02/09 21:26:51 tom Exp $
****************************************************************************
- * Copyright (c) 1998-2015,2018 Free Software Foundation, Inc. *
+ * Copyright 2018-2019,2020 Thomas E. Dickey *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
@@ -33,14 +33,14 @@
<html>
<head>
<meta name="generator" content=
- "HTML Tidy for Linux (vers 25 March 2009), see www.w3.org">
+ "HTML Tidy for HTML5 for Linux version 5.2.0">
- <title>Announcing ncurses 6.1</title>
- <link rev="made" href="mailto:bug-ncurses@gnu.org">
+ <title>Announcing ncurses 6.2</title>
+ <link rel="author" href="mailto:bug-ncurses@gnu.org">
<meta http-equiv="Content-Type" content=
"text/html; charset=us-ascii">
<style type="text/css">
-p,li { max-width:700px; }
+ p,li { max-width:700px; }
dd { max-width:630px; }
*.main-name {
font-style: italic;
@@ -51,11 +51,15 @@ p,li { max-width:700px; }
font-size: 12pt;
font-weight: bold;
}
+ *.demo-name {
+ font-family: "Andale Mono", "Monotype.com", monospace;
+ font-size: 10pt;
+ }
</style>
</head>
<body>
- <h1 class="no-header">Announcing ncurses 6.1</h1>
+ <h1 class="no-header">Announcing ncurses 6.2</h1>
<h2><a name="h2-overview" id="h2-overview">Overview</a></h2>
@@ -81,7 +85,7 @@ p,li { max-width:700px; }
(aside from some embedded applications).</li>
<li>It is used as the system curses library on OpenBSD, FreeBSD
- and OSX.</li>
+ and MacOS.</li>
<li>It is used in environments such as Cygwin and MinGW. The
first of these was EMX on OS/2 Warp.</li>
@@ -159,175 +163,62 @@ p,li { max-width:700px; }
Notes</a></h2>
<p>These notes are for <span class="main-name">ncurses</span>
- 6.1, released <strong>January 27, 2018</strong>.</p>
+ 6.2, released <strong>February 12, 2020</strong>.</p>
<p>This release is designed to be source-compatible with
- <span class="main-name">ncurses</span> 5.0 through 6.0; providing
+ <span class="main-name">ncurses</span> 5.0 through 6.1; providing
extensions to the application binary interface (ABI). Although
the source can still be configured to support the <span class=
- "main-name">ncurses</span> 5 ABI, the intent of the release is to
- provide extensions to the <span class="main-name">ncurses</span>
- <strong>6</strong> ABI:</p>
-
- <ul>
- <li>
- <p>improve integration of <span class="part-name">tput</span>
- and <span class="part-name">tset</span></p>
- </li>
-
- <li>
- <p>provide support for extended numeric capabilities.</p>
- </li>
- </ul>
+ "main-name">ncurses</span> 5 ABI, the reason for the release is
+ to reflect improvements to the <span class=
+ "main-name">ncurses</span> 6 ABI and the supporting utility
+ programs.</p>
<p>There are, of course, numerous other improvements, listed in
this announcement.</p>
- <p>The release notes also mention some bug-fixes, but are focused
- on new features and improvements to existing features since
- <span class="main-name">ncurses</span> 6.0 release.</p>
+ <p>The most <a href="#h3-bug-fixes">important
+ bug-fixes/improvements</a> dealt with user-defined capabilities
+ in terminal descriptions. The release notes also mention some
+ other bug-fixes, but are focused on new features and improvements
+ to existing features since <span class="main-name">ncurses</span>
+ 6.1 release.</p>
- <h3><a name="h3-library" id="h3-library">Library
- improvements</a></h3>
+ <h3><a name="h3-library" id="h3-library">Library improvements</a></h3>
- <h4><a name="h4-new-library" id="h4-new-library">New
- features</a></h4>
+ <h4><a name="h4-new-library" id="h4-new-library">New features</a></h4>
- <p>The improved integration of <span class=
- "part-name">tput</span> and <span class="part-name">tset</span>
- made only small changes to the libraries. However, supporting
- extended numeric capabilities required a few changes:</p>
+ <p>There are several new features:</p>
<ul>
<li>
- <p>The <code>TERMINAL</code> structure in
- <code>&lt;term.h&gt;</code> is now opaque. Doing that allowed
- making the structure larger, to hold the extended numeric
- data.</p>
-
- <p>A few applications required changes during development of
- <span class="main-name">ncurses&nbsp;6.1</span> because those
- applications misused the members of that structure, e.g.,
- directly modifying it rather than using <a href=
- "https://invisible-island.net/ncurses/man/curs_kernel.3x.html#h3-def_prog_mode_-def_shell_mode">
- def_prog_mode</a>.</p>
- </li>
-
- <li>
- <p>Having made <code>TERMINAL</code> opaque (and because none
- of the library functions use anything except a pointer to
- <code>TERMINAL</code>), it was possible to increase the size
- of the structure, adding to the end.</p>
-
- <p>Existing applications which were linked to the
- <span class="part-name">ncurses&nbsp;6.0</span> high-level
- (<em>ncurses</em>, <em>ncursesw</em>) and low-level
- (<em>tinfo</em>, <em>tinfo</em>) libraries should not require
- re-linking since the binary interface did not change, nor did
- the structure offsets with <code>TERMINAL</code> change.</p>
-
- <p>A few applications use the inner <code>TERMTYPE</code>
- structure's offsets to refer to terminfo capabilities within
- that structure. Again, those do not require modification
- because their offsets within <code>TERMINAL</code> did not
- change.</p>
- </li>
-
- <li>
- <p>When configured for wide-characters, i.e.,
- &ldquo;ncursesw&rdquo; the <code>TERMINAL</code> structure is
- extended.</p>
-
- <p>The new data in <code>TERMINAL</code> holds the same
- information as <code>TERMTYPE</code>, but with larger numbers
- (&ldquo;int&rdquo; versus &ldquo;short&rdquo;). It is named
- <code>TERMTYPE2</code>.</p>
-
- <p>The library uses this structure internally in preference
- to <code>TERMTYPE</code>, referring to <code>TERMTYPE</code>
- only to initialize it for applications that use the
- capabilities defined in <code>&lt;term.h&gt;</code></p>
+ <p><a href=
+ "https://invisible-island.net/ncurses/man/form_field_opts.3x.html">
+ O_EDGE_INSERT_STAY</a> tells the form library to optionally
+ delay cursor movement on a field edge/boundary</p>
</li>
<li>
- <p>When configured for 8-bit (narrow) characters, the
- <code>TERMTYPE2</code> structure is not used.</p>
+ <p><a href=
+ "https://invisible-island.net/ncurses/man/form_field_opts.3x.html">
+ O_INPUT_FIELD</a> extension to form library allows a dynamic
+ field to shrink if the new limit is smaller than the current
+ field size.</p>
</li>
- <li>The updated application binary interface is 6.1.20171230
- (used for new <a href=
- "https://invisible-island.net/ncurses/ncurses-mapsyms.html">versioned
- symbols</a>), although the interface changes were developed
- several months previously.</li>
- </ul>
-
- <p>The motivation for making this extension came from noticing
- that <a href=
- "https://invisible-island.net/ncurses/tctest.html#bsd42-numeric-caps">
- termcap applications</a> could (though not <a href=
- "https://invisible-island.net/ncurses/ncurses-slang.html#cause_numbers">
- realistically</a>) use larger numbers than would fit in 16-bits,
- and the fact that the number of color pairs for a 256-color xterm
- could not be expressed in terminfo (i.e., 32767 versus 65536).
- Also, a few terminals support direct-colors, which could use the
- extension.</p>
-
- <p>Generally speaking, applications that use internal details of
- a library are unsupported. There was exactly one exception for
- <span class="main-name">ncurses</span>: the <span class=
- "main-name">tack</span> program <em>used</em> the internal
- details of <code>TERMINAL</code>, because it provides an
- ncurses-specific feature for interactively modifying a terminfo
- description and writing the updated description to a text-file.
- It was possible to not only separate <span class=
- "main-name">tack</span> from these <a href=
- "https://invisible-island.net/ncurses/tack.html#portable">internal
- details of <span class="main-name">ncurses</span></a>, but to
- generalize it so that the program works with Unix curses
- (omitting the ncurses-specific feature). That was released as
- <a href=
- "https://invisible-island.net/ncurses/tack/CHANGES.html#index-t20170726">
- <span class="main-name">tack</span>&nbsp;1.08</a> in July
- 2017.</p>
-
- <p>While making changes to <span class="main-name">tack</span> to
- eliminate its dependency upon <span class=
- "main-name">ncurses</span> internals, the publicly-visible
- details of those internals were reviewed, and some symbols were
- moved to private header files, while others were marked
- explicitly as <span class="main-name">ncurses</span> internals.
- Future releases of <span class="main-name">ncurses</span> may
- eliminate some of those symbols (such as those used by
- <span class="main-name">tack</span>&nbsp;1.07) because they are
- neither part of the API or the ABI.</p>
-
- <p>Using the <code>TERMTYPE2</code> extended numeric
- capabilities, it is possible to support both color pair values
- and color values past 32767. Taking compatibility into account,
- developers readily understand that neither function signatures
- nor structure offsets change. Also, existing functions have to
- operate with the extended numbers. Most of that work is internal
- to the library. For the external interfaces, a hybrid approach
- was used:</p>
-
- <ul>
<li>
- <p>X/Open Curses defined function prototypes such as
- <code>wattr_set</code> with an unused parameter, for
- &ldquo;future&rdquo; use. After 25 years, the future is here:
- <span class="main-name">ncurses</span> uses the parameter to
- augment color pair values as described in the <a href=
- "https://invisible-island.net/ncurses/man/curs_attr.3x.html#h2-EXTENSIONS">
- manual page</a>.</p>
+ <p>added <a href=
+ "https://invisible-island.net/ncurses/man/curs_memleaks.3x.html">
+ exit_curses</a> and <a href=
+ "https://invisible-island.net/ncurses/man/curs_memleaks.3x.html">
+ exit_terminfo</a> to replace internal symbols for
+ leak-checking.</p>
</li>
<li>
- <p>Other functions such as those defining color pairs did not
- have a corresponding <em>reserved</em> parameter. For those,
- <span class="main-name">ncurses</span> defines extended
- versions such as <code>init_extended_pair</code> (versus
- <code>init_pair</code>), <code>init_extended_color</code>
- (versus <code>init_color</code>).</p>
+ <p>added <a href=
+ "https://invisible-island.net/ncurses/man/curs_trace.3x.html#h3-Functions">
+ curses_trace</a>, to replace trace().</p>
</li>
</ul>
@@ -336,1250 +227,742 @@ p,li { max-width:700px; }
<ul>
<li>
- <p>Several new functions simplify management of large sets of
- color pairs: <code>reset_color_pairs</code>,
- <code>alloc_pair</code>, <code>find_pair</code> and
- <code>free_pair</code>.</p>
+ <p>mouse decoding now handles shift/control/alt logic when
+ decoding xterm's 1006 mode</p>
</li>
<li>
- <p>New "RGB" extension capability for direct-color support is
- used to improve performance of
- <code>color_content</code>.</p>
+ <p>ncurses now defines a limit for <a href=
+ "https://invisible-island.net/ncurses/man/curs_getstr.3x.html">
+ wgetnstr</a>, <a href=
+ "https://invisible-island.net/ncurses/man/curs_get_wstr.3x.html">
+ wgetn_wstr</a> when length is negative or &ldquo;too
+ large&rdquo;.</p>
</li>
- <li>
- <p>The internal <code>colorpair_t</code> is now a struct,
- eliminating an internal 8-bit limit on colors</p>
- </li>
+ <li>reordered loop-limit checks in <a href=
+ "https://invisible-island.net/ncurses/man/curs_insstr.3x.html">winsnstr</a>
+ in case the string has no terminating null and only the number
+ of characters is used.</li>
<li>
- <p>Allocation for <code>SCREEN</code>'s color-pair table
- starts small, grows on demand up to the limit given in the
- terminal description.</p>
+ <p>there is now no buffer-size limit when reading the
+ <a href="https://invisible-island.net/ncurses/man/ncurses.3x.html#h3-TERMCAP">
+ <tt>$TERMCAP</tt></a> variable.</p>
</li>
<li>
- <p><code>setcchar</code> and <code>getcchar</code> now treat
- a negative color-pair as an error.</p>
- </li>
- </ul>
-
- <h4><a name="h4-fixes-library" id="h4-fixes-library">Other
- improvements</a></h4>
-
- <p>These are new or revised features:</p>
-
- <ul>
- <li>
- <p>modify <code>c++/etip.h.in</code> to accommodate
- deprecation of throw and throws in c++17</p>
- </li>
-
- <li>
- <p>add new function <code>unfocus_current_field</code></p>
- </li>
-
- <li>
- <p>add option to preserve leading whitespace in form
- fields</p>
+ <p>the <a href=
+ "https://invisible-island.net/ncurses/man/ncurses.3x.html#h3-TERMCAP">
+ <tt>$TERMCAP</tt></a> variable may be interpreted as a
+ fallback to a terminfo entry</p>
</li>
<li>
- <p>add a macro for <code>is_linetouched</code> and adjust the
- function's return value to make it possible for most
- applications to check for an error-return.</p>
- </li>
-
- <li>
- <p>add build-time utility <code>report_offsets</code> to help
- show when the various configurations of tinfo library are
- compatible or not.</p>
- </li>
- </ul>
-
- <p>These were done to limit or ultimately deprecate features:</p>
-
- <ul>
- <li>
- <p>drop two symbols obsoleted in 2004:
- <code>_nc_check_termtype</code>, and
- <code>_nc_resolve_uses</code></p>
- </li>
-
- <li>
- <p>move <code>_nc_tracebits</code>, <code>_tracedump</code>
- and <code>_tracemouse</code> to <code>curses.priv.h</code>,
- since they are not part of the suggested ABI6.</p>
- </li>
-
- <li>
- <p>mark some structs in form/menu/panel libraries as
- potentially opaque without modifying API/ABI.</p>
- </li>
-
- <li>
- <p>ifdef'd header-file definition of <code>mouse_trafo</code>
- with <code>NCURSES_NOMACROS</code></p>
- </li>
-
- <li>
- <p>remove initialization-check for calling <code>napms</code>
- in the term-driver configuration; none is needed.</p>
- </li>
-
- <li>
- <p>modify <code>trace</code> to avoid overwriting existing
- file</p>
+ <p><a href=
+ "https://invisible-island.net/ncurses/man/curs_terminfo.3x.html#h3-Output-Functions">
+ <tt>mvcur</tt></a> now decides whether to use hard-tabs,
+ using <strong><tt>xt</tt></strong>,
+ <strong><tt>tbc</tt></strong> and
+ <strong><tt>hts</tt></strong> as clues.</p>
</li>
- </ul>
- <p>These are improvements to existing features:</p>
-
- <ul>
<li>
- <p>modify <code>make_hash</code> to allow building with
- address-sanitizer, assuming that <code>--disable-leaks</code>
- is configured.</p>
+ <p>extended colors are improved by modifying an internal call
+ to <a href=
+ "https://invisible-island.net/ncurses/man/curs_terminfo.3x.html#h3-Output-Functions">
+ <tt>vid_puts</tt></a> to pass extended color pairs e.g., from
+ <tt>tty_update.c</tt> and <tt>lib_mvcur.c</tt></p>
</li>
<li>
- <p>move <code>SCREEN</code> field for <code>use_tioctl</code>
- data before the ncursesw fields, and limit that to the
- sp-funcs configuration to improve termlib compatibility</p>
+ <p id="getenv-fixes">the initialization functions now avoid
+ relying upon persistent data for the result from <a href=
+ "#getenv-check"><tt>getenv</tt></a></p>
</li>
<li>
- <p>modify db-iterator:</p>
+ <p>scrolling is improved:</p>
<ul>
- <li>
- <p>ignore zero-length files in db-iterator; these are
- useful for instance to suppress
- <code>$HOME/.terminfo</code> when not wanted.</p>
- </li>
+ <li>a limit check in <tt>newline_forces_scroll</tt> handles
+ the case where the row is inside scroll-margins, but not at
+ the end.</li>
<li>
- <p>modify <code>update_getenv</code> to ensure that
- environment variables which are not initially set will be
- checked later if an application happens to set them</p>
+ <p>improved loop limits in <tt>_nc_scroll_window</tt>
+ handle a case where the scrolled data is a pad which is
+ taller than the window.</p>
</li>
</ul>
</li>
+ </ul>
- <li>
- <p>modify <code>_nc_outc_wrapper</code> to use the standard
- output if the screen was not initialized, rather than
- returning an error.</p>
- </li>
-
- <li>
- <p>improve checks for low-level terminfo functions when the
- terminal has not been initialized.</p>
- </li>
+ <h4><a name="h4-fixes-library" id="h4-fixes-library">Other
+ improvements</a></h4>
- <li>
- <p>modify <code>set_curterm</code> to update
- <code>ttytype[]</code> data used by longname/p&gt;</p>
- </li>
+ <p>These are revised features:</p>
+ <ul>
<li>
- <p>modify <code>_nc_get_screensize</code> to allow for
- <code>use_env</code> and <code>use_tioctl</code> state to be
- per-screen when sp-funcs are configured, better matching the
- behavior when using the term-driver configuration.</p>
+ <p>used &ldquo;<tt>const</tt>&rdquo; in some prototypes
+ rather than <tt>NCURSES_CONST</tt> where X/Open Curses was
+ updated to do this, e.g., <tt>wscanw</tt>, <tt>newterm</tt>,
+ the terminfo interface. Also use &ldquo;<tt>const</tt>&rdquo;
+ for consistency in the termcap interface, which was withdrawn
+ by X/Open Curses in Issue 5 (2007). As of Issue 7, X/Open
+ Curses still lacks &ldquo;<tt>const</tt>&rdquo; for certain
+ return values, e.g., <a href=
+ "https://invisible-island.net/ncurses/man/curs_util.3x.html#h3-keyname_key_name">
+ keyname</a>.</p>
</li>
<li>
- <p>remove an early-return from <code>_nc_do_color,</code>
- which can interfere with data needed by <code>bkgd</code>
- when <span class="main-name">ncurses</span> is configured
- with extended colors</p>
+ <p>modified <a href=
+ "https://invisible-island.net/ncurses/man/curs_bkgd.3x.html#h3-bkgd">
+ <tt>wbkgd</tt></a> and <a href=
+ "https://invisible-island.net/ncurses/man/curs_bkgrnd.3x.html#h3-bkgrnd">
+ <tt>wbkgrnd</tt></a> to improve compatibility with SVr4
+ curses, changing the way the window rendition is updated when
+ the background character is modified</p>
</li>
<li>
- <p>incorporate <code>A_COLOR</code> mask into
- <code>COLOR_PAIR</code>, in case user application provides an
- out-of-range pair number</p>
+ <p>improved terminfo write/read by modifying the fourth item
+ of the extended header to denote the number of valid strings
+ in the extended string table (see <a href=
+ "https://invisible-island.net/ncurses/man/term.5.html#h3-EXTENDED-STORAGE-FORMAT">
+ term(5)</a>).</p>
</li>
<li>
- <p>modify logic for <code>endwin</code>-state to be able to
- detect the case where the screen was never initialized, using
- that to trigger a flush of <span class=
- "main-name">ncurses'</span> buffer for <code>mvcur</code>,
- e.g., in the sample program <span class=
- "part-name">dots_mvcur</span> for the term-driver
- configuration.</p>
+ <p>modified the initialization checks for mouse so that the
+ <a href=
+ "/ncurses/terminfo.src.html#tic-xterm_sm_1006"><tt>xterm+sm+1006</tt></a>
+ block will work with terminal descriptions not mentioning
+ <em>xterm</em>.</p>
</li>
</ul>
- <p>These are corrections to existing features:</p>
+ <p>These were done to limit or ultimately deprecate features:</p>
<ul>
<li>
- <p>fixes for writing extended color pairs in
- <code>putwin</code>.</p>
+ <p>deprecated <a href=
+ "https://invisible-island.net/ncurses/NEWS.html#t970831">safe-sprintf</a>,
+ since the <tt>vsnprintf</tt> function, which does what was
+ needed, was standardized long ago.</p>
</li>
<li>
- <p>modify no-leaks code for <code>lib_cur_term.c</code> to
- account for the <code>tgetent</code> cache.</p>
+ <p>marked <a href=
+ "https://invisible-island.net/ncurses/man/curs_printw.3x.html#h3-PORTABILITY">
+ <tt>vwprintw</tt></a> and <tt>vwscanw</tt> as deprecated;
+ recommend using <a href=
+ "https://invisible-island.net/ncurses/man/curs_printw.3x.html">
+ <tt>vw_printw</tt></a> and <tt>vw_scanw</tt>,
+ respectively.</p>
</li>
<li>
- <p>amend handling of the <code>repeat_char</code> capability
- in <code>EmitRange</code> to avoid scope creep: translate the
- character to the alternate character set when the alternate
- character set is enabled, and do not use
- <code>repeat_char</code> for characters past 255.</p>
+ <p>added deprecation warnings for internal functions called
+ by older versions of <a href=
+ "https://invisible-island.net/ncurses/tack.html">tack</a>.</p>
</li>
<li>
- <p>improve wide-character implementation of
- <code>myADDNSTR</code> in <code>frm_driver.c</code>, which
- was inconsistent with the normal implementation.</p>
+ <p>removed unused <tt>_nc_import_termtype2</tt> function.</p>
</li>
-
- <li>
- <p>modify <code>winnstr</code> and <code>winchnstr</code> to
- return error if the output pointer is null, as well as adding
- a null pointer check of the window pointer for better
- compatibility with other implementations.</p>
- </li>
-
- <li>
- <p>modify <code>setupterm</code> to save original tty-modes
- so that <code>erasechar</code> works as expected. Also modify
- <code>_nc_setupscreen</code> to avoid redundant calls to get
- original tty-modes.</p>
- </li>
-
- <li>
- <p>modify <code>wattr_set</code> and <code>wattr_get</code>
- to return <code>ERR</code> if <em>win</em>-parameter is null,
- as documented.</p>
- </li>
-
- <li>
- <p>correct order of initialization for traces in
- <code>use_env</code> and <code>use_tioctl</code> versus first
- <code>_tracef</code> calls.</p>
- </li>
-
- <li>
- <p>correct parameters for <code>copywin</code> call in
- <code>_nc_Synchronize_Attributes</code></p>
- </li>
-
- <li>
- <p>flush the standard output in <code>_nc_flush</code> for
- the case where <code>SP</code> is zero, e.g., when called via
- <code>putp</code>. This fixes a scenario where
- &ldquo;tput&nbsp;flash&rdquo; did not work after changes in
- 20130112.</p>
- </li>
-
- <li>
- <p>amend internal use of <code>tputs</code> to consistently
- use the number of lines affected, e.g., for insert/delete
- character operations. While merging terminfo source early in
- 1995, several descriptions used the
- &ldquo;<code>*</code>&rdquo; proportional delay for these
- operations, prompting a change in <code>doupdate</code>.</p>
- </li>
-
- <li>
- <p>correct return-value of extended <code>putwin</code>.</p>
- </li>
-
- <li>
- <p>double-width multibyte characters were not counted
- properly in <code>winsnstr</code> and
- <code>wins_nwstr</code>.</p>
- </li>
-
- <li>
- <p>amend fix for <code>_nc_ripoffline</code> from 20091031 to
- make <code>test/ditto.c</code> work in threaded
- configuration.</p>
- </li>
-
- <li>
- <p>modify <code>_nc_viscbuf2</code> and
- <code>_tracecchar_t2</code> to trace wide-characters as a
- whole rather than their multibyte equivalents.</p>
- </li>
-
- <li>
- <p>minor fix in <code>wadd_wchnstr</code> to ensure that each
- cell has nonzero width.</p>
- </li>
-
- <li>
- <p>move <code>PUTC_INIT</code> calls next to
- <code>wcrtomb</code> calls, to avoid carry-over of error
- status when processing Unicode values which are not
- mapped.</p>
- </li>
-
- <li>
- <p>add missing assignment in <code>lib_getch.c</code> to make
- <code>notimeout</code> work</p>
- </li>
- </ul>
-
- <h3><a name="h3-programs" id="h3-programs">Program
- improvements</a></h3>
-
- <p>While reviewing user feedback, it became apparent that the
- differences between <a href=
- "https://invisible-island.net/ncurses/man/tset.1.html#h3-reset---reinitialization">
- <span class="part-name">reset</span></a> (an alias for
- <span class="part-name">tset</span>) and &ldquo;<span class=
- "part-name">tput reset</span>&rdquo; were confusing:</p>
-
- <ul>
- <li>one (<a href=
- "https://invisible-island.net/ncurses/man/tset.1.html">tset</a>)
- updated the terminal modes, but used only part of the terminfo
- capabilities for initialization, while</li>
-
- <li>the other (<a href=
- "https://invisible-island.net/ncurses/man/tput.1.html"><span class="part-name">tput</span></a>)
- used all of the terminal capabilities while neglecting the
- terminal modes.</li>
</ul>
- <p>On further investigation, it turned out that the differences
- were largely an accident due to the way those programs had
- evolved.</p>
-
- <p>This release eliminates the unnecessary differences, using the
- same approach for <span class="part-name">tput</span>'s
- <em>init</em> (initialization), <em>reset</em> and <em>clear</em>
- operations as the separate <a href=
- "https://invisible-island.net/ncurses/man/tset.1.html#h3-reset---reinitialization">
- reset</a> and <a href=
- "https://invisible-island.net/ncurses/man/clear.1.html"><span class="part-name">
- clear</span></a> programs. Doing this does not change the
- command-line options; existing scripts are unaffected.</p>
-
- <p>These are the user-visible changes for the three programs
- (<span class="part-name">tput</span>, <span class=
- "part-name">tset</span> and <span class=
- "part-name">clear</span>):</p>
+ <p>These are improvements to existing features:</p>
<ul>
<li>
- <p>add the terminal-mode parts of &ldquo;<span class=
- "part-name">reset</span>&rdquo; (aka <span class=
- "part-name">tset</span>) to the &ldquo;<code>tput
- reset</code>&rdquo; command, making the two almost the same
- except for window-size.</p>
- </li>
-
- <li>
- <p>improve <span class="part-name">tput</span>'s check for
- being called as &ldquo;init&rdquo; or &ldquo;reset&rdquo; to
- allow for transformed names.</p>
- </li>
-
- <li>
- <p>add &ldquo;clear&rdquo; as a possible link/alias to
- <span class="part-name">tput</span>.</p>
- </li>
-
- <li>
- <p>amend changes for <span class="part-name">tput</span> to
- reset tty modes to &ldquo;sane&rdquo; if the program is run
- as &ldquo;reset&rdquo;, like <span class=
- "part-name">tset</span>. Likewise, ensure that <span class=
- "part-name">tset</span> sends either reset- or
- init-strings.</p>
+ <p>check parameter of <a href=
+ "https://invisible-island.net/ncurses/man/curs_threads.3x.html">
+ set_escdelay</a>, return ERR if negative.</p>
</li>
<li>
- <p>add <code>-x</code> option to <span class=
- "part-name">clear</span>/<span class="part-name">tput</span>
- to make the <code>E3</code> extension optional</p>
+ <p>check parameter of <a href=
+ "https://invisible-island.net/ncurses/man/curs_threads.3x.html">
+ set_tabsize</a>, return ERR if not greater than zero</p>
</li>
<li>
- <p>add functionality of
- &ldquo;<code>tset&nbsp;-w</code>&rdquo; to <span class=
- "part-name">tput</span>, like the
- &ldquo;<code>-c</code>&rdquo; feature this is not optional in
- <span class="part-name">tput</span>.</p>
+ <p>correct a status-check in _nc_read_tic_entry() so that if
+ reading a hex/b64 <a href=
+ "https://invisible-island.net/ncurses/man/ncurses.3x.html#h3-TERMINFO">
+ <tt>$TERMINFO</tt></a>, and the <a href=
+ "https://invisible-island.net/ncurses/man/ncurses.3x.html#h3-TERM">
+ <tt>$TERM</tt></a> does not match, fall-through to the
+ compiled-in search list.</p>
</li>
<li>
- <p>add options <code>-T</code> and <code>-V</code> to
- <span class="part-name">clear</span> command for
- compatibility with <span class="part-name">tput</span>.</p>
+ <p>amend check for <a href=
+ "https://invisible-island.net/ncurses/man/terminfo.5.html#h3-Predefined-Capabilities">
+ <tt>repeat_char</tt></a> to handle a case where setlocale()
+ was called after <a href=
+ "https://invisible-island.net/ncurses/man/curs_initscr.3x.html">
+ <tt>initscr</tt></a></p>
</li>
<li>
- <p>drop long-obsolete &ldquo;<code>-n</code>&rdquo; option
- from <span class="part-name">tset</span>.</p>
+ <p>move macro for <a href=
+ "https://invisible-island.net/ncurses/man/curs_touch.3x.html">
+ <tt>is_linetouched</tt></a> inside
+ <strong><tt>NCURSES_NOMACROS</tt></strong>
+ <em><tt>ifndef</tt></em>.</p>
</li>
<li>
- <p>modify <span class="part-name">tset</span>'s assignment to
- <code>TERM</code> in its output to reflect the name by which
- the terminal description is found, rather than the primary
- name. That was an unnecessary part from the initial
- conversion of <span class="part-name">tset</span> from
- termcap to terminfo. The termcap library in 4.3BSD did this
- to avoid using the short 2-character name</p>
+ <p>use <tt>_nc_copy_termtype2</tt> rather than direct
+ assignment in <a href=
+ "https://invisible-island.net/ncurses/man/curs_terminfo.3x.html#h3-Initialization">
+ setupterm</a>, in case it is called repeatedly using fallback
+ terminfo descriptions</p>
</li>
<li>
- <p>remove a restriction in <span class=
- "part-name">tput</span>'s support for termcap names which
- omitted capabilities normally not shown in termcap
- translations</p>
+ <p>improve workaround for Solaris wcwidth versus line-drawing
+ characters</p>
</li>
<li>
- <p>add usage message to <span class="part-name">clear</span>
- command</p>
+ <p>add checks in <a href=
+ "https://invisible-island.net/ncurses/man/resizeterm.3x.html">
+ <tt>repair_subwindows</tt></a> to keep the current position
+ and scroll-margins inside the resized subwindow.</p>
</li>
<li>
- <p>improve usage messages for <span class=
- "part-name">tset</span> and <span class=
- "part-name">tput</span>.</p>
+ <p>correct a buffer-limit in <tt>write_entry.c</tt> for
+ systems that use caseless filenames.</p>
</li>
- </ul>
-
- <p>Other user-visible improvements and new features include:</p>
- <ul>
<li>
- <p>modify <span class="part-name">tic</span>/<span class=
- "part-name">infocmp</span> display of numeric values to use
- hexadecimal when they are "close" to a power of two, making
- the result more readable.</p>
- </li>
-
- <li>
- <p>add &ldquo;<code>-W</code>&rdquo; option to <span class=
- "part-name">tic</span>/<span class="part-name">infocmp</span>
- to force long strings to wrap.</p>
+ <p>improved build-time utility <em>report_offsets</em>:</p>
<ul>
<li>
- <p>This is in addition to the
- &ldquo;<code>-w</code>&rdquo; option which attempts to
- fit capabilities into a given line-length.</p>
+ <p>add categories, e.g., "w" for wide-character, "t" for
+ threads to make the report more readable. Reorganized the
+ structures reported to make the categories more
+ apparent.</p>
</li>
<li>
- <p>If &ldquo;<code>-f</code>&rdquo; option splits line,
- do not further split it with
- &ldquo;<code>-W</code>&rdquo;.</p>
- </li>
-
- <li>
- <p>Begin a new line when adding
- &ldquo;<code>use=</code>&rdquo; after a wrapped line.</p>
+ <p>add <tt>NCURSES_GLOBALS</tt> and
+ <tt>NCURSES_PRESCREEN</tt> to report to show how similar
+ the different <em>libtinfo</em> configurations are.</p>
</li>
</ul>
</li>
<li>
- <p>add &ldquo;<code>-q</code>&rdquo; option to <span class=
- "part-name">infocmp</span> to suppress the
- &ldquo;<code>Reconstructed from</code>&rdquo; comment from
- the header, and a corresponding option to <span class=
- "part-name">tic</span> to suppress all comments from the
- &ldquo;<code>tic -I</code>&rdquo; output.</p>
+ <p>modified some header files to ensure that those include
+ necessary files except for the previously-documented
+ cases</p>
</li>
<li>
- <p>Sorted options in usage message for <span class=
- "part-name">infocmp</span>, to make it simpler to see unused
- letters.</p>
+ <p>added some traces in initialization to show whether a
+ fallback entry is used.</p>
</li>
<li>
- <p>Updated usage message for <span class=
- "part-name">tic</span>, adding &ldquo;<code>-0</code>&rdquo;
- option.</p>
- </li>
-
- <li>
- <p>add <span class="part-name">infocmp</span>/<span class=
- "part-name">tic</span> &ldquo;<code>-Q</code>&rdquo; option,
- which allows one to dump the compiled form of the terminal
- entry, in hexadecimal or base64:</p>
-
- <ul>
- <li>A &ldquo;<code>b64:</code>&rdquo; prefix in the
- <code>TERMINFO</code> variable tells the terminfo reader to
- use base64 according to RFC-3548 as well as RFC-4648
- url/filename-safe format.</li>
-
- <li>A &ldquo;<code>hex:</code>&rdquo; prefix tells the
- terminfo reader to accept hexadecimal data as generated by
- &ldquo;<code>infocmp -0qQ1</code>&rdquo;.</li>
- </ul>
+ <p>made minor optimization to reduce calls to
+ _nc_reserve_pairs</p>
</li>
</ul>
- <p>Other less-visible improvements and new features include:</p>
+ <p>These are corrections to existing features:</p>
<ul>
<li>
- <p>modify utility headers such as <code>tic.h</code> to make
- it clearer which are externals that are used by <span class=
- "main-name">tack</span>.</p>
- </li>
-
- <li>
- <p>add &ldquo;<code>reset</code>&rdquo; to list of programs
- whose names might change in manpages due to
- program-transformation configure options.</p>
+ <p>fix a special case in <tt>PutAttrChar</tt> where a cell is
+ marked as alternate-character set, but the terminal does not
+ actually support the given graphic character. This would
+ happen in an older terminal such as <em>vt52</em>, which
+ lacks most line-drawing capability.</p>
</li>
<li>
- <p>modify &ldquo;<code>-T</code>&rdquo; option of
- <span class="part-name">clear</span> and <span class=
- "part-name">tput</span> to call <code>use_tioctl</code> to
- obtain the operating system's notion of the screensize if
- possible.</p>
+ <p>corrected flag for "seq" method of db 1.8.5 interface,
+ needed by toe on some of the BSDs.</p>
</li>
<li>
- <p>add check in <span class="part-name">tput</span> for
- init/reset operands to ensure those use a terminal.</p>
+ <p>modify comparison in make_hash.c to correct a special case
+ in collision handling for Caps-hpux11</p>
</li>
<li>
- <p>modify programs <span class="part-name">clear</span>,
- <span class="part-name">tabs</span>, <span class=
- "part-name">tput</span> and <span class=
- "part-name">tset</span> to pass the actual tty file
- descriptor to setupterm rather than the standard output or
- error, making padding work.</p>
+ <p>add extended_slk_color{,_sp} symbols to the appropriate
+ package/*.{map,sym} files</p>
</li>
<li>
- <p>change <span class="part-name">tset</span>'s
- initialization to allow it to get settings from the standard
- input as well as <code>/dev/tty</code>, to be more effective
- when output or error are redirected.</p>
+ <p>modify lib_setup to avoid calling pthread_self() without
+ first verifying that the address is valid, i.e., for weak
+ symbols</p>
</li>
<li>
- <p>amend check in <span class="part-name">tput</span>,
- <span class="part-name">tabs</span> and <span class=
- "part-name">clear</span> to allow those to use the
- database-only features in <span class="part-name">cron</span>
- if a &ldquo;<code>-T</code>&rdquo; option gives a suitable
- terminal name.</p>
- </li>
-
- <li>
- <p>improve error message from <span class=
- "part-name">tset</span>/<span class="part-name">reset</span>
- when both stderr/stdout are redirected to a file or pipe.</p>
+ <p>add a couple of broken-linker symbols to the list of
+ versioned symbols to help with link-time optimization versus
+ weak symbols.</p>
</li>
</ul>
- <p>Several of the less apparent features deal with translation of
- terminfo to termcap (and the reverse), with corresponding checks
- by <span class="part-name">tic</span>:</p>
-
- <ul>
- <li>
- <p>modify check in <code>fmt_entry</code> to handle a
- cancelled reset string. Make similar fixes in other parts of
- <code>dump_entry.c</code> and <code>tput.c</code></p>
- </li>
-
- <li>
- <p>correct read of terminfo entry in which all strings are
- absent or explicitly cancelled. Before this fix, the result
- was that all were treated as only absent.</p>
- </li>
-
- <li>
- <p>modify <span class="part-name">infocmp</span> to suppress
- mixture of absent/cancelled capabilities that would only show
- as &ldquo;<code>NULL, NULL</code>&rdquo;, unless the
- &ldquo;<code>-q</code>&rdquo; option is used, e.g., to show
- &ldquo;<code>-, @</code>&rdquo; or &ldquo;<code>@,
- -</code>&rdquo;.</p>
- </li>
-
- <li>
- <p>correct a warning from <span class="part-name">tic</span>
- about keys which are the same, to skip over missing/cancelled
- values.</p>
- </li>
-
- <li>
- <p>add check in <span class="part-name">tic</span> for use of
- bold, etc., video attributes in the color capabilities,
- accounting whether the feature is listed in
- <code>ncv</code>.</p>
- </li>
-
- <li>
- <p>add check in <span class="part-name">tic</span> for
- unnecessary use of &ldquo;<code>2</code>&rdquo; to denote a
- shifted special key.</p>
- </li>
-
- <li>
- <p>improve check in <span class="part-name">tic</span> for
- delays by also warning about beep/flash when a delay is not
- embedded, or if those use the VT100 reverse video escape
- without using a delay.</p>
- </li>
-
- <li>
- <p>improve checks in <code>trim_sgr0</code>, comp_parse.c and
- parse_entry.c, for cancelled string capabilities.</p>
- </li>
-
- <li>
- <p>add check in <span class="part-name">tic</span> for some
- syntax errors of delays, as well as use of proportional
- delays for non-line capabilities.</p>
- </li>
-
- <li>
- <p>add check in <span class="part-name">tic</span> for
- conflict between <code>ritm</code>, <code>rmso</code>,
- <code>rmul</code> versus <code>sgr0</code>.</p>
- </li>
-
- <li>
- <p>add check in <code>_nc_parse_entry</code> for invalid
- entry name, setting the name to
- &ldquo;<code>invalid</code>&rdquo; to avoid problems storing
- entries.</p>
- </li>
-
- <li>
- <p>improve <code>_nc_tparm_analyze</code>, using that to
- extend the checks made by <span class="part-name">tic</span>
- for reporting inconsistencies between the expected number of
- parameters for a capability and the actual.</p>
- </li>
-
- <li>
- <p>remove <span class="part-name">tic</span> warning about
- &ldquo;<code>^?</code>&rdquo; in string capabilities, which
- was marked as an extension; however all Unix implementations
- support this and X/Open Curses does not address it. On the
- other hand, <a href=
- "https://invisible-island.net/ncurses/tctest.html#bsd42-ctl-question">
- BSD termcap</a> did not support this feature (until the
- <a href=
- "https://invisible-island.net/ncurses/tctest.html#freebsd-ctl-question">
- mid-1990s</a>).</p>
+ <h3><a name="h3-programs" id="h3-programs">Program
+ improvements</a></h3>
- <p>in <code>_nc_infotocap</code>, added a check to ensure
- that terminfo &ldquo;<code>^?</code>&rdquo; is not written to
- termcap.</p>
- </li>
+ <p>Several improvements were made to the utility programs:</p>
- <li>
- <p>modify <code>sscanf</code> calls in
- <code>_nc_infotocap</code> for patterns
- &ldquo;<code>%{number}%+%c</code>&rdquo; and
- &ldquo;<code>%'char'%+%c</code>&rdquo; to check that the
- final character is really &ldquo;<code>c</code>&rdquo;,
- avoiding a case in icl6404 which cannot be converted to
- termcap.</p>
- </li>
-
- <li>
- <p>in <code>_nc_tic_expand</code> and
- <code>_nc_infotocap</code>, improved string-length check when
- deciding whether to use &ldquo;<code>^X</code>&rdquo; or
- &ldquo;<code>\xxx</code>&rdquo; format for control
- characters, to make the output of <span class=
- "part-name">tic</span>/<span class="part-name">infocmp</span>
- more predictable.</p>
- </li>
-
- <li>
- <p>limited termcap &ldquo;<code>%d</code>&rdquo; width to 2
- digits on input, and use &ldquo;<code>%2</code>&rdquo; in
- preference to &ldquo;<code>%02</code>&rdquo; on output.</p>
- </li>
+ <dl>
+ <dt><span class="part-name">clear</span>
+ </dt>
- <li>
- <p>correct terminfo/termcap conversion of
- &ldquo;<code>%02</code>&rdquo; and
- &ldquo;<code>%03</code>&rdquo; into
- &ldquo;<code>%2</code>&rdquo; and
- &ldquo;<code>%3</code>&rdquo;; the result repeated the last
- character.</p>
- </li>
- </ul>
+ <dd>
+ <ul>
+ <li>improved logic for clearing with the <em>E3</em>
+ extension, in case the terminal scrolls content onto its
+ saved-lines before actually clearing the display, by
+ clearing the saved-lines after clearing the display</li>
+ </ul>
+ </dd>
- <h4><a name="h4-examples" id="h4-examples">Examples</a></h4>
+ <dt><span class="part-name">infocmp</span>
+ </dt>
- <p>Along with the library and utilities, many improvements were
- made to the <a href=
- "https://invisible-island.net/ncurses/ncurses-examples.html">ncurses-examples</a>.</p>
+ <dd>
+ <ul>
+ <li>omit filtering of &ldquo;<tt>OTxx</tt>&rdquo; names
+ which are used for obsolete capabilities, when the output
+ is sorted by long-names. This change helps when making a
+ table of the short/long capability names.</li>
+ </ul>
+ </dd>
- <p>These changes were made to demonstrate new extensions in
- <span class="main-name">ncurses</span>:</p>
+ <dt><span class="part-name">tic</span>
+ </dt>
- <ul>
- <li>
- <p>add <span class="part-name">demo_new_pair</span> program,
- to demonstrate <a href=
- "https://invisible-island.net/ncurses/man/new_pair.3x.html#h3-alloc_pair">
- <code>alloc_pair</code></a>, <a href=
- "https://invisible-island.net/ncurses/man/new_pair.3x.html#h3-find_pair">
- <code>find_pair</code></a> and <a href=
- "https://invisible-island.net/ncurses/man/new_pair.3x.html#h3-free_pair">
- <code>free_pair</code></a> functions.</p>
+ <dd>
+ <ul>
+ <li>added check for consistent alternate character set
+ capabilities.</li>
- <p>This program iterates over the possible color
- combinations, allocating or initializing color pairs. For
- best results, choose screen-width dividing evenly into the
- number of colors. e.g.,</p>
+ <li>added check for paired <tt>indn</tt>/<tt>rin</tt>.</li>
- <blockquote>
- <table summary="sample layouts for demo_new_pair">
- <tr>
- <td><code>32x64,32x128</code>&nbsp;&nbsp;</td>
+ <li>added check for terminals with <tt>parm_dch</tt> vs
+ <tt>parm_ich</tt>.</li>
- <td>256 colors</td>
- </tr>
+ <li>added check for the case where
+ <tt>setf</tt>/<tt>setb</tt> are given using different
+ strings, but provide identical results to
+ <tt>setaf</tt>/<tt>setab</tt>.</li>
- <tr>
- <td><code>24x44,24x88</code></td>
+ <li>corrected check for <tt>ich1</tt>.</li>
- <td>88 colors</td>
- </tr>
+ <li>changed a too-large terminal entry from a fatal error
+ to a warning.</li>
+ </ul>
+ </dd>
- <tr>
- <td><code>32x64,24x128</code></td>
+ <dt><span class="part-name">toe</span>
+ </dt>
- <td>16 colors</td>
- </tr>
- </table>
- </blockquote>
- </li>
+ <dd>
+ <ul>
+ <li>ignores any hex/b64 <tt>$TERMINFO</tt> value in the
+ list of terminfo databases.</li>
+ </ul>
+ </dd>
- <li>
- <p>add <span class="part-name">extended_color</span> program,
- like the older <span class="part-name">color_set</span>
- program, but using the extended color functions, with and
- without the SP-functions interface.</p>
- </li>
+ <dt><span class="part-name">tset</span>
+ </dt>
- <li>
- <p>add <span class="part-name">picsmap</span> program to fill
- in some testing issues not met by <span class=
- "part-name">dots</span>, using this as the third example in a
- comparison of the <a href=
- "https://invisible-island.net/ncurses/ncurses-slang.html#compare_picsmap">
- ncurses versus slang</a> libraries.</p>
+ <dd>
+ <ul>
+ <li>replace check in <span class="part-name">reset</span>
+ command for obsolete &ldquo;<tt>pt</tt>&rdquo; capability
+ using <tt>tbc</tt> and <tt>hts</tt> capabilities as
+ clues</li>
+
+ <li>modify <span class="part-name">reset</span> to allow
+ for tabstops at intervals other than 8.</li>
+
+ <li>change <span class="part-name">reset</span>'s behavior
+ for margins to simply clear soft-margins if possible,
+ rather than clearing and then setting them according to the
+ terminal's width.</li>
+ </ul>
+ </dd>
- <p>The program can directly read X bitmap and pixmap files,
- displaying a picture. It can read other image files using
- <span class="part-name">ImageMagick</span>'s <span class=
- "part-name">convert</span> program to translate the image
- into text.</p>
+ <dt><span class="part-name">tput</span>
+ </dt>
- <p>For 16-, 88- and 256-color terminal descriptions,
- <span class="part-name">picsmap</span> can load a palette
- file which tells it which color palette entries to use. For
- direct-colors, the terminal descriptions use the
- <code>RGB</code> extension capability.</p>
- </li>
- </ul>
+ <dd>
+ <ul>
+ <li>add &ldquo;<tt>x</tt>&rdquo; to <tt>getopt</tt> string
+ so that &ldquo;<tt>tput&nbsp;-x&nbsp;clear</tt>&rdquo;
+ works.</li>
+ </ul>
+ </dd>
+ </dl>
- <p>There are other new example programs and a few scripts:</p>
+ <p>Several changes were made to the generated ncurses*config
+ scripts and the analogous &ldquo;<tt>.pc</tt>&rdquo; files to
+ reduce differences between the configurations they report:</p>
<ul>
<li>
- <p>add <span class="part-name">dots_xcurses</span> program to
- illustrate a different approach used for extended colors
- which can be contrasted with <span class=
- "part-name">dots_curses</span>.</p>
+ <p>modified the ncurse*-config and pc-files to more closely
+ match for the <tt>-I</tt> and <tt>-l</tt> options.</p>
</li>
<li>
- <p>add <span class="part-name">list_keys</span> program show
- function keys for one or more terminal descriptions. It uses
- <span class="main-name">ncurses'</span>s convention of
- modifiers for special keys, based on xterm.</p>
+ <p>filtered out linker-specs from the <tt>--libs</tt>
+ report.</p>
</li>
<li>
- <p>add <span class="part-name">padview</span> program, to
- compare pads with direct updates in the <span class=
- "part-name">view</span> program.</p>
+ <p>amended the ncurses*-config and pc-files to take into
+ account the rpath hack which differed between those
+ files.</p>
</li>
<li>
- <p>add <span class="part-name">sp_tinfo</span> program to
- exercise the SP-functions extension of the low-level terminfo
- library.</p>
- </li>
-
- <li>
- <p>add test-programs for <code>termattrs</code> and
- <code>term_attrs</code> functions.</p>
- </li>
-
- <li>
- <p>add <span class="part-name">test_sgr</span> program to
- exercise all combinations of the sgr capability.</p>
- </li>
-
- <li>
- <p>add <span class="part-name">tput-colorcube</span> demo
- script, imitating xterm's 88- and 256-color scripts using
- <span class="part-name">tput</span>.</p>
- </li>
-
- <li>
- <p>add <span class="part-name">tput-initc</span> script to
- demonstrate how <span class="part-name">tput</span> may be
- used to initialize a color palette from a data file.</p>
+ <p>modified generated ncurses*config and ncurses.pc,
+ ncursesw.pc, etc., to list helper libraries such as gpm for
+ static linking.</p>
</li>
</ul>
- <p>A variety of improvements were made to existing programs, both
- new features as well as options added to make the set of programs
- more consistent.</p>
+ <h4><a name="h4-examples" id="h4-examples">Examples</a></h4>
- <p>The <span class="part-name">ncurses</span> program is the
- largest; a proportionately large number of changes were made to
- it:</p>
+ <p>Along with the library and utilities, improvements were made
+ to the <a href=
+ "https://invisible-island.net/ncurses/ncurses-examples.html">ncurses-examples</a>.
+ Most of this activity aimed at improving the test-packages. A few
+ changes are more generally useful, e.g., for the main ncurses
+ test-program, and for analyzing traces using the
+ <em>tracemunch</em> script:</p>
<ul>
<li>
- <p>modify a/A screens to make exiting on an escape character
- depend on the start of keypad and timeout modes, to allow
- better testing of function-keys.</p>
-
- <p>add &ldquo;<code>t</code>&rdquo; toggle for
- <code>notimeout</code> function.</p>
- </li>
-
- <li>
- <p>modify layout of b/B screens to allow for additional
- annotation on the right margin; some terminals with partial
- support did not display well.</p>
- </li>
-
- <li>
- <p>modify c/C screens to allow for extended color pairs.</p>
-
- <p>add z/Z <em>zoom</em> feature to make extended color pairs
- easier to test.</p>
-
- <p>modify test-screens to take advantage of wide screens,
- reducing the number of lines used for 88- and 256-colors.</p>
+ <p>improve recovery from error when reading command-character
+ in <tt>test/ncurses.c</tt>, showing the relevant error
+ message and not exiting on EINTR.</p>
</li>
<li>
- <p>modify &ldquo;<code>d</code>&rdquo; edit-color screen to
- optionally read xterm color palette directly from terminal,
- as well as handling <code>KEY_RESIZE</code> and
- screen-repainting with control/L and control/R.</p>
+ <p>improve <em>tracemunch</em>, by keeping track of
+ <tt>TERMINAL*</tt> values, and if tracing was first turned on
+ after initialization, attempt to show distinct screen, window
+ and terminal names anyway.</p>
</li>
<li>
- <p>add examples to &ldquo;<code>F</code>&rdquo; screen for
- <code>WACS_D_PLUS</code> and <code>WACS_T_PLUS</code>.</p>
+ <p>modify <em>tracemunch</em> to accept filename parameters
+ in addition to use as a pipe/filter.</p>
</li>
<li>
- <p>improve &ldquo;<code>g</code>&rdquo; screen, correcting
- ifdef which made the legend not reflect changes to keypad-
- and scroll-modes. Added check for return-value of
- <code>putwin</code>.</p>
+ <p>update <em>tracemunch</em> to work with <em>perl
+ 5.26.2</em>, which changed the rules for escaping regular
+ expressions.</p>
</li>
<li>
- <p>make &ldquo;<code>s</code>&rdquo; test easier to
- understand which subtests are available</p>
-
- <p>add a corresponding &ldquo;<code>S</code>&rdquo;
- wide-character overlap test-screen.</p>
+ <p>add some checks in <em>tracemunch</em> for undefined
+ variables.</p>
</li>
<li>
- <p>add &ldquo;<code>v</code>&rdquo; screen to show
- <code>baudrate</code> and other values.</p>
+ <p>modify <tt>TurnOn</tt>/<tt>TurnOff</tt> macros (in
+ lib_vidattr.c and lib_vid_attr.c) to avoid expansion of
+ &ldquo;<tt>CUR</tt>&rdquo; in trace.</p>
</li>
</ul>
- <p>These changes were made to the other examples:</p>
+ <p>There are other new demo/test programs and reusable
+ examples:</p>
- <ul>
- <li>
- <p>modify <span class="part-name">blue</span> program to use
- Unicode values for card-glyphs when available, as well as
- improving the check for CP437 and CP850.</p>
- </li>
-
- <li>
- <p>improve <span class="part-name">demo_menus</span> program,
- allowing mouse-click on the menu-headers to switch the active
- menu. This requires a new extension option
- <code>O_MOUSE_MENU</code> to tell the menu driver to put
- mouse events which do not apply to the active menu back into
- the queue so that the application can handle the event.</p>
- </li>
+ <dl>
+ <dt><span class="part-name">color_content</span>
+ </dt>
- <li>
- <p>correct logic in <span class=
- "part-name">demo_terminfo</span> program for
- &ldquo;<code>-f</code>&rdquo; option</p>
- </li>
+ <dd>Demonstrate the <tt>color_content</tt> and
+ <tt>extended_color_content</tt> functions.</dd>
- <li>
- <p>modify <span class="part-name">ditto</span> program to
- allow <code>$XTERM_PROG</code> environment variable to
- override "xterm" as the name of the program to run in the
- threaded configuration.</p>
- </li>
+ <dt><span class="part-name">demo_tabs</span>
+ </dt>
- <li>
- <p>add several options to the &ldquo;<em>dots</em>&rdquo;
- test-programs.</p>
- </li>
+ <dd>A simple demo of tabs in curses.</dd>
- <li>
- <p>modify <span class="part-name">filter</span> program:</p>
+ <dt><span class="part-name">dump_window</span>
+ </dt>
- <ul>
- <li>illustrate an alternative to <code>getnstr</code>, that
- polls for input while updating a clock on the right margin
- as well as responding to window size-changes.</li>
-
- <li>adapt logic used in <a href=
- "https://invisible-island.net/dialog/"><span class=
- "main-name">dialog</span></a> <a href=
- "https://invisible-island.net/dialog/manpage/dialog.html#h3-Common-Options">
- &ldquo;<code>--keep-tite</code>&rdquo; option</a> for
- <span class="part-name">filter</span> program as the "-a"
- option. When set, <span class="part-name">filter</span>
- attempts to suppress the alternate screen.</li>
- </ul>
- </li>
+ <dd>A portable curses screen-dump, used to compare ncurses
+ screen contents with Solaris.</dd>
- <li>
- <p>modify <span class="part-name">knight</span> program to
- provide the "slow" solution for small screens using
- &ldquo;<code>R</code>&rdquo;, noting that Warnsdorf's method
- is easily done with &ldquo;<code>a</code>&rdquo;.</p>
- </li>
+ <dt><span class="part-name">pair_content</span>
+ </dt>
- <li>
- <p>modify the <span class="part-name">savescreen</span>
- program to add test patterns that exercise 88-, 256-, etc.,
- colors.</p>
- </li>
+ <dd>Demonstrate the <tt>pair_content</tt> and
+ <tt>extended_pair_content</tt> functions.</dd>
- <li>
- <p>add options to <span class="part-name">test_arrays</span>,
- for selecting termcap vs terminfo, etc.</p>
- </li>
+ <dt><span class="part-name">report_hashing</span>
+ </dt>
- <li>
- <p>modify the <span class="part-name">view</span>
- program:</p>
+ <dd>Check hash-tables used for terminfo and termcap names.</dd>
- <ul>
- <li>expand tabs using the ncurses library rather than in
- the test-program.</li>
+ <dt><span class="part-name">parse_rgb</span>
+ </dt>
- <li>eliminate the &ldquo;<code>-n</code>&rdquo; option by
- simply reading the whole file.</li>
+ <dd>Sample implementation of the ncurses RGB extension from
+ <a href=
+ "https://invisible-island.net/ncurses/man/user_caps.5.html">user_caps.5</a>,
+ used in <em>picsmap</em> and <em>savescreen</em> programs.</dd>
+ </dl>
- <li>implement page up/down commands.</li>
+ <p>A variety of improvements were made to existing programs, both
+ new features as well as options added to make the set of programs
+ more consistent.</p>
- <li>remove the very old <code>SIGWINCH</code> example; just
- use <code>KEY_RESIZE</code>.</li>
- </ul>
+ <ul>
+ <li>
+ <p>add &ldquo;<tt>-l</tt>&rdquo; option to test/background,
+ to dump screen contents in a form that lets different curses
+ implementations be compared.</p>
</li>
<li>
- <p>improve animation in <span class="part-name">xmas</span>
- program by adding a time-delay in <code>blinkit</code>.</p>
+ <p>add &ldquo;<tt>@</tt>&rdquo; command to test/ncurses
+ F-test, to allow rapid jump to different character pages.</p>
</li>
<li>
- <p>modify several test-programs which call
- <code>use_default_colors</code> to consistently do this only
- if the &ldquo;<code>-d</code>&rdquo; option is given.</p>
+ <p>added enum, regex examples to test/demo_forms</p>
</li>
<li>
- <p>modify the install-rule for ncurses-examples to put the
- data files in the data directory, e.g.,
- <code>/usr/share/ncurses-examples</code>.</p>
+ <p>amend Scaled256() macro in test/picsmap.c to cover the
+ full range 0..1000</p>
</li>
<li>
- <p>modify several test programs to use new
- <code>popup_msgs</code> function, adapted from the
- help-screen used in the <code>edit_field</code> program.</p>
+ <p>corrected pathname used in Ada95 sample programs for
+ <tt>explain.txt</tt>, to work with test-packages, and used an
+ awk script to split the resulting pathname when it would be
+ too long for a single line.</p>
</li>
<li>
- <p>modify test data for xterm palettes to use the newer
- color4/color12 values.</p>
+ <p>ignore interrupted system-call in test/ncurses's
+ command-line, e.g., if the terminal were resized.</p>
</li>
<li>
- <p>improve the <span class="part-name">tracemunch</span>
- script:</p>
-
- <ul>
- <li>show screenXX pointers and thread identifiers as
- names.</li>
-
- <li>chang address-parameters of <code>add_wch</code>,
- <code>color_content</code> and <code>pair_content</code> to
- dummy parameters.</li>
- </ul>
+ <p>improved ifdef's for <tt>TABSIZE</tt> variable, to help
+ with AIX/HPUX ports.</p>
</li>
</ul>
- <h3><a name="h3-database" id="h3-database">Terminal
- database</a></h3>
+ <h3><a name="h3-database" id="h3-database">Terminal database</a></h3>
<p>There are several new terminal descriptions:</p>
- <blockquote>
- <p><code>dumb-emacs-ansi</code>, <code>dvtm</code>,
- <code>dvtm-256color</code>, <code>fbterm</code>,
- <code>iterm2</code>, <code>linux-m1</code> <em>minitel
- entries</em>, <code>putty-noapp</code>, <code>viewdata</code>,
- and <code>vt100+4bsd</code> <em>building-block</em>.</p>
-
- <p><code>xterm+noalt</code>, <code>xterm+titlestack</code>,
- <code>xterm+alt1049</code>, <code>xterm+alt+title</code>
- <em>building blocks</em> and <code>xterm+direct</code>,
- <code>xterm+indirect</code>, <code>xterm-direct</code>. from
- <a href=
- "https://invisible-island.net/xterm/xterm.log.html#xterm_331">xterm
- patch #331</a>.</p>
-
- <p>several other &ldquo;<code>-direct</code>&rdquo;
- descriptions to address the differences of other terminal
- emulators versus <code>xterm-direct</code>.</p>
+ <blockquote style="word-break:keep-all">
+ <p><tt>alacritty</tt>, <tt>domterm</tt>, <tt>kitty</tt>,
+ <tt>mintty</tt>, <tt>mintty-direct</tt>, <tt>ms-terminal</tt>,
+ <tt>n7900</tt>, <tt>nsterm-build309</tt>,
+ <tt>nsterm-direct</tt>, <tt>screen5</tt>, <tt>ti703</tt>,
+ <tt>ti707</tt>, <tt>ti703-w</tt>, <tt>ti707-w</tt>
+ <tt>vscode</tt>, <tt>vscode-direct</tt>, <tt>xterm-mono</tt>,
+ <tt>xterm.js</tt></p>
</blockquote>
<p>There are many changes to existing terminal descriptions. Some
were updates to several descriptions:</p>
<ul>
- <li>use <code>xterm+sm+1006</code> in several terminal
- descriptions which were validated as supporting the extended
- mouse feature for their respective terminal emulators.</li>
+ <li>use <a href=
+ "/ncurses/terminfo.src.html#tic-ansi_rep"><tt>ansi+rep</tt></a>
+ in a dozen places</li>
+
+ <li>add rs1 to konsole, mlterm</li>
+
+ <li>improve several flash capabilities with trailing mandatory
+ delays</li>
+
+ <li>drop <tt>ich1</tt> from <tt>rxvt-basic</tt>, <tt>Eterm</tt>
+ and <tt>mlterm</tt> to improve compatibility with old
+ non-curses programs</li>
- <li>corrected <em>sgr</em>/<em>sgr0</em> strings in a few cases
- reported by <span class="part-name">tic</span>, making those
- correspond to the non-<em>sgr</em> settings where they differ,
- but otherwise use ECMA-48 consistently.</li>
+ <li>add/use <a href=
+ "/ncurses/terminfo.src.html#tic-xterm_keypad"><tt>xterm+keypad</tt></a>
+ in <tt>xterm-new</tt></li>
- <li>add 0.1sec mandatory delay to <em>flash</em> capabilities
- using the VT100 reverse-video control</li>
+ <li>use <a href=
+ "/ncurses/terminfo.src.html#tic-xterm_sl-twm"><tt>xterm+sl-twm</tt></a>
+ for consistency, nine places</li>
+
+ <li>improve <em>xm</em> example in <a href=
+ "/ncurses/terminfo.src.html#tic-xterm_x11mouse">xterm+x11mouse</a>
+ and <a href=
+ "/ncurses/terminfo.src.html#tic-xterm_sm_1006">xterm+sm_1006</a>.</li>
</ul>
<p>while others affected specific descriptions. These were
- retested, to take into account new/undocumented changes by their
- developers:</p>
+ retested, to take into account changes by their developers:</p>
<blockquote>
- <p><code>iterm</code>, <code>minitel</code>, <code>st</code>,
- <code>viewdata</code>, <code>nsterm</code></p>
+ <p><tt>terminator</tt>, <tt>st</tt></p>
</blockquote>
- <p>while these are specific fixes based on user reports, or
- warnings from <span class="part-name">tic</span>:</p>
+ <p>while these are specific fixes based on reviewing
+ documentation, user reports, or warnings from <span class=
+ "part-name">tic</span>:</p>
<dl>
<dt><a href=
- "https://invisible-island.net/ncurses/terminfo.src.html#toc-_A_N_S_I__S_Y_S__I_S_O_6429__E_C_M_A-48__Capabilities">
- <code>ansi</code> <em>building blocks</em></a></dt>
+ "/ncurses/terminfo.src.html#tic-adds200">adds200</a>:</dt>
<dd>
<ul>
- <li>restored <em>rmir</em>/<em>smir</em> in
- <code>ansi+idc</code> to better match original
- <code>ansiterm+idc</code>, add alias
- <code>ansiterm</code></li>
+ <li>fix typo</li>
</ul>
</dd>
<dt><a href=
- "https://invisible-island.net/ncurses/terminfo.src.html#tic-icl6404">
- <code>icl6402</code></a></dt>
+ "/ncurses/terminfo.src.html#tic-gnome-256color">gnome-256color</a>
+ </dt>
<dd>
<ul>
- <li>corrected missing comma-separator between string
- capabilities in <code>icl6402</code> and
- <code>m2-nam</code></li>
+ <li>base entry on "gnome", not "vte", for consistency</li>
</ul>
</dd>
<dt><a href=
- "https://invisible-island.net/ncurses/terminfo.src.html#tic-interix">
- <code>interix</code></a></dt>
+ "/ncurses/terminfo.src.html#tic-interix">interix</a>
+ </dt>
<dd>
<ul>
- <li>updated using <span class="main-name">tack</span> and
- SFU with Windows 7 Ultimate.</li>
-
- <li>used <code>^?</code> for <em>kdch1</em></li>
+ <li>trim unnecessary setf/setb</li>
</ul>
</dd>
<dt><a href=
- "https://invisible-island.net/ncurses/terminfo.src.html#toc-_Linux_consoles">
- <code>linux</code></a></dt>
+ "/ncurses/terminfo.src.html#tic-linux-16color">linux-16color</a>
+ </dt>
<dd>
<ul>
- <li>made <code>linux3.0</code> entry the default
- <strong><code>linux</code></strong> entry</li>
-
- <li>modify <code>linux2.6</code> entry to improve
- line-drawing so that the <code>linux3.0</code> entry can be
- used in non-UTF-8 mode</li>
-
- <li>omitted selection of ISO-8859-1 for G0 in enacs
- capability from linux2.6 entry, to avoid conflict with the
- user-defined mapping. The reset feature uses ISO-8859-1 in
- any case.</li>
-
- <li>modify <em>flash</em> capability for <code>linux</code>
- and <code>wyse</code> entries to put the delay between the
- reverse/normal escapes rather than after</li>
-
- <li>modify <code>linux-16color</code> to not mask dim,
- standout or reverse with the <em>ncv</em> capability</li>
+ <li>accommodate <a href=
+ "https://lists.gnu.org/archive/html/bug-ncurses/2019-10/msg00061.html">
+ Linux console driver</a> incompatibility introduced in
+ early 2018</li>
</ul>
</dd>
<dt><a href=
- "https://invisible-island.net/ncurses/terminfo.src.html#toc-_Open_B_S_D_consoles">
- <code>pccon</code> <em>entries</em></a></dt>
+ "/ncurses/terminfo.src.html#tic-nsterm-256color">nsterm-256color</a>:</dt>
<dd>
<ul>
- <li>fixed some inconsistencies in the
- <code><em>pccon*</em></code> entries</li>
+ <li>add nsterm-build309 to replace nsterm-256color,
+ assigning the latter as an alias of nsterm, to make mouse
+ work with nsterm-256color</li>
+ </ul>
+ </dd>
- <li>add bold to <code>pccon+sgr+acs</code> and
- <code>pccon-base</code></li>
+ <dt><a href=
+ "/ncurses/terminfo.src.html#tic-regent40">regent40</a>:</dt>
- <li>add keys f12-f124 to <code>pccon+keys</code></li>
+ <dd>
+ <ul>
+ <li>renumber function-keys to match manual</li>
</ul>
</dd>
<dt><a href=
- "https://invisible-island.net/ncurses/terminfo.src.html#toc-_Tmux">
- <code>tmux</code></a></dt>
+ "/ncurses/terminfo.src.html#tic-regent60">regent60</a>:</dt>
<dd>
<ul>
- <li>corrected <em>sgr</em> string, which used
- <code>screen</code>'s "standout" code rather than the
- standard code.</li>
+ <li>add cd (clr_eos)</li>
- <li>add settings corresponding to <code>xterm-keys</code>
- option to reflect upcoming change to make that option
- <em>"on"</em> by default</li>
+ <li>corrected acsc</li>
- <li>uncanceled <em>Ms</em></li>
+ <li>add shifted function-keys</li>
</ul>
</dd>
<dt><a href=
- "https://invisible-island.net/ncurses/terminfo.src.html#toc-_D_E_C__V_T100_and_compatibles">
- <code>vt100</code></a></dt>
+ "/ncurses/terminfo.src.html#tic-tvi950">tvi950</a>:</dt>
<dd>
<ul>
- <li>modify <code>vt100</code> <em>rs2</em> string to reset
- vt52 mode and scrolling regions</li>
+ <li>added function-key definitions to agree with Televideo
+ 950 manual</li>
+
+ <li>corrected acsc</li>
- <li>corrected <em>rs2</em> string for
- <code>vt100-nam</code></li>
+ <li>remove bogus kf0</li>
- <li>made minor fixes for <code>vt100+4bsd</code>, e.g.,
- delay in <em>sgr</em> for consistency</li>
+ <li>add bel</li>
</ul>
</dd>
<dt><a href=
- "https://invisible-island.net/ncurses/terminfo.src.html#toc-_G_N_O_M_E__V_T_E_">
- <code>vte</code></a></dt>
+ "/ncurses/terminfo.src.html#tic-tvi955">tvi955</a>:</dt>
<dd>
<ul>
- <li>moved SGR 24 and 27 from <code>vte-2014</code> to
- <code>vte-2012</code></li>
-
- <li>add a few capabilities fixed in recent <em>VTE</em>
- development</li>
+ <li>fix typo</li>
</ul>
</dd>
<dt><a href=
- "https://invisible-island.net/ncurses/terminfo.src.html#toc-_X_T_E_R_M">
- <code>xterm</code></a></dt>
+ "/ncurses/terminfo.src.html#tic-vi200">vi200</a>:</dt>
<dd>
<ul>
- <li>add <em>rep</em> to <code>xterm-new</code>, available
- since <a href=
- "https://invisible-island.net/xterm/xterm.log.html#xterm_32">
- late 1996</a>.</li>
-
- <li>modify <code>xterm+256color</code> and
- <code>xterm+256setaf</code> to use correct number of color
- pairs.</li>
-
- <li>modify <em>rs1</em> for <code>xterm-16color</code>,
- <code>xterm-88color</code> and <code>xterm-256color</code>
- to reset palette using <em>oc</em> string as in
- <code>linux</code> entry.</li>
+ <li>add acsc string, including right/down-arrow</li>
+ </ul>
+ </dd>
- <li>add <em>rs1</em> capability to
- <code>xterm-256color</code></li>
+ <dt><a href=
+ "/ncurses/terminfo.src.html#tic-wy50">wy50</a>:</dt>
- <li>add <em>oc</em> capability to
- <code>xterm+256color</code>, allowing palette reset for
- <span class="main-name">xterm</span></li>
+ <dd>
+ <ul>
+ <li>corrected acsc</li>
+ </ul>
+ </dd>
- <li>add <em>op</em> to <code>xterm+256setaf</code></li>
+ <dt><a href="/ncurses/terminfo.src.html#tic-wy50">wy50</a> and
+ <a href="/ncurses/terminfo.src.html#tic-wy60">wy60</a>:</dt>
- <li>modify <code>xterm-r5</code>, <code>xterm-r6</code> and
- <code>xterm-xf86-v32</code> to use <code>xterm+kbs</code>
- to match <a href=
- "https://invisible-island.net/xterm/xterm.log.html#xterm_272">
- xterm #272</a>, reflecting packager's changes</li>
+ <dd>
+ <ul>
+ <li>add shifted function-keys as kF1 to kF16</li>
+ </ul>
+ </dd>
- <li>used ANSI reply for <em>u8</em> in
- <code>xterm-new</code>, to reflect vt220-style responses
- that could be returned.</li>
+ <dt><a href=
+ "/ncurses/terminfo.src.html#tic-xterm_x11hilite">xterm+x11hilite</a>:</dt>
- <li>made <code>xterm-pcolor</code> <em>sgr</em> consistent
- with other capabilities</li>
+ <dd>
+ <ul>
+ <li>eliminate unused <em>p5</em> parameter.</li>
</ul>
</dd>
</dl>
@@ -1588,11 +971,16 @@ p,li { max-width:700px; }
capabilities):</p>
<ul>
- <li>add <em>rmxx</em>/<em>smxx</em> ECMA-48 strikeout extension
- to <code>tmux</code> and <code>xterm-basic</code></li>
+ <li>use <a href=
+ "/ncurses/terminfo.src.html#tic-xterm_sm_1006"><tt>xterm+sm+1006</tt></a>
+ (aka &ldquo;SGR 1006 mouse&rdquo;) for konsole-base and
+ putty</li>
+
+ <li>add <em><tt>Smol/Rmol</tt></em> user-defined capability to
+ <tt>tmux</tt> and <tt>vte-2018</tt></li>
- <li>used <em>RGB</em> capability in new <em>*-direct</em>
- entries to denote direct-color feature.</li>
+ <li>add <em><tt>Smulx</tt></em> user-defined capability to
+ <tt>tmux</tt>, <tt>vte-2018</tt></li>
</ul>
<h3><a name="h3-documentation" id=
@@ -1618,728 +1006,562 @@ p,li { max-width:700px; }
</li>
</ul>
- <p>In particular,</p>
+ <p>In addition to providing background information to explain
+ these features and show how they evolved, there are corrections,
+ clarifications, etc.:</p>
<ul>
<li>
- <p>Since the underlying features for <a href=
- "https://invisible-island.net/ncurses/man/clear.1.html#h2-HISTORY">
- <span class="part-name">tset</span></a>, <a href=
- "https://invisible-island.net/ncurses/man/clear.1.html#h2-HISTORY">
- <span class="part-name">tput</span></a>, and <a href=
- "https://invisible-island.net/ncurses/man/clear.1.html#h2-HISTORY">
- <span class="part-name">clear</span></a> have been better
- integrated, the documentation now includes information on how
- those tools evolved.</p>
+ <p>Corrections:</p>
- <p>In addition to explaining the improved integration of the
- tools, the manual pages made it easier to see how the tools
- are similar and how they are different.</p>
- </li>
-
- <li>
- <p>The <code>addch</code> manual page has additional
- information on <a href=
- "https://invisible-island.net/ncurses/man/curs_addch.3x.html#h2-PORTABILITY">
- portability</a> and differences from other
- implementations.</p>
- </li>
+ <ul>
+ <li>correct error-returns listed in manual pages for a few
+ form functions</li>
- <li>
- <p>The discussion of color-pairs in the <em>attributes</em>
- manual page is improved in its <a href=
- "https://invisible-island.net/ncurses/man/curs_attr.3x.html#h2-HISTORY">
- history section</a>.</p>
- </li>
+ <li>corrected prototypes in several manpages using script
+ to extract those in compilable form.</li>
- <li>
- <p>The documentation of the <code>chtype</code>,
- <code>cchar_t</code> types and the attribute values which can
- be stored in those types, in particular the <a href=
- "https://invisible-island.net/ncurses/man/curs_attr.3x.html#h2-HISTORY">
- history</a> and <a href=
- "https://invisible-island.net/ncurses/man/curs_attr.3x.html#h2-PORTABILITY">
- portability</a> sections of the <em>attributes</em> manual
- page, has been improved.</p>
+ <li>fix typo in <a href=
+ "https://invisible-island.net/ncurses/man/term.5.html#h3-EXTENDED-NUMBER-FORMAT">
+ term.5</a>, improve explanation of format</li>
+ </ul>
</li>
<li>
- <p>improve discussion of <a href=
- "https://invisible-island.net/ncurses/man/curs_mouse.3x.html#h2-PORTABILITY">
- portability</a> in the <em>mouse</em> manual.</p>
+ <p>Clarify in manual pages that <a href=
+ "https://invisible-island.net/ncurses/man/curs_printw.3x.html#h2-PORTABILITY">
+ vwprintw</a> and <a href=
+ "https://invisible-island.net/ncurses/man/curs_scanw.3x.html#h2-PORTABILITY">
+ vwscanw</a> are obsolete.<br>
+ They have not been part of X/Open Curses since 2007.</p>
</li>
<li>
- <p>The <em>pad</em> manual page has a section on the <a href=
- "https://invisible-island.net/ncurses/man/curs_pad.3x.html#h2-PORTABILITY">
- origin and portability</a> of pads.</p>
- </li>
+ <p>New/improved history and portability sections:</p>
- <li>
- <p>Differences between SVr4 and X/Open Curses soft-keys are
- discussed in a new section on <a href=
- "https://invisible-island.net/ncurses/man/curs_slk.3x.html#h2-PORTABILITY">
- portability</a>.</p>
+ <ul>
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/curs_addch.3x.html#h3-ACS-Symbols">
+ curs_addch.3x</a> gives some background for ACS
+ symbols.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/curs_getcchar.3x.html#h2-PORTABILITY">
+ curs_getcchar.3x</a> explains a difference between ncurses
+ and X/Open Curses.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/curs_getstr.3x.html#h2-PORTABILITY">
+ curs_getstr.3x</a> gives historical/portability background
+ for the length parameter of <tt>wgetnstr</tt>.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/curs_slk.3x.html">
+ curs_slk.3x</a> lists a few differences between SVr4 curses
+ and X/Open Curses for soft-keys.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/curs_terminfo.3x.html">
+ curs_terminfo.3x</a> explains that the initial
+ implementation of terminfo in SVr2 was mostly replaced by
+ other developers in SVr3.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/infocmp.1m.html">infocmp.1</a>
+ explains that the initial version of terminfo had no tool
+ for decompiling descriptions. That came later, with SVr3,
+ with a different developer.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/tabs.1">tabs.1</a>
+ tells more than you wanted to know about the tool.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/tic.1m.html">tic.1</a>
+ explains that the initial version of terminfo had a
+ rudimentary tool (based on termcap) for compiling entries.
+ The tool used with Unix was developed by others for
+ SVr3.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/toe.1m.html">toe.1</a>
+ explains the origin of this tool.</li>
+ </ul>
</li>
<li>
- <p>There are updated/improved notes on portability in the
- <a href=
- "https://invisible-island.net/ncurses/man/resizeterm.3x.html#h2-PORTABILITY">
- resizeterm</a> and <a href=
- "https://invisible-island.net/ncurses/man/wresize.3x.html#h2-PORTABILITY">
- wresize</a> manual pages.</p>
- </li>
- </ul>
+ <p>Improvements for <a href=
+ "https://invisible-island.net/ncurses/man/user_caps.5.html">user_caps.5</a>:</p>
- <p>In addition to providing background information to explain
- these features and show how they evolved, there are corrections,
- clarifications, etc.:</p>
-
- <ul>
- <li>
- <p>add note in the <a href=
- "https://invisible-island.net/ncurses/man/curs_addch.3x.html#h3-ACS-Symbols">
- <em>addch</em></a> manual about line-drawing when it depends
- upon UTF-8.</p>
- </li>
+ <ul>
+ <li>mention <tt>meml</tt>, <tt>memu</tt> and
+ <tt>box1</tt></li>
- <li>
- <p>improve discussion of line-drawing characters in the
- <a href=
- "https://invisible-island.net/ncurses/man/curs_add_wch.3x.html">
- <em>add_wch</em></a> manual.</p>
- </li>
+ <li>expanded description of <tt>XM</tt></li>
- <li>
- <p>explain in <a href=
- "https://invisible-island.net/ncurses/man/clear.1.html#h2-DESCRIPTION">
- <span class="part-name">clear</span></a>'s manual page that
- it writes to the standard output.</p>
- </li>
+ <li>add a clarification regarding the <tt>RGB</tt>
+ capability.</li>
- <li>
- <p>improve description of <a href=
- "https://invisible-island.net/ncurses/man/curs_initscr.3x.html#h3-endwin">
- <em>endwin</em></a>.</p>
+ <li>mention user_caps.5 in the tic and infocmp manual
+ pages.</li>
+ </ul>
</li>
<li>
- <p>improve discussion of field validation in the <a href=
- "https://invisible-island.net/ncurses/man/form_driver.3x.html">
- <em>form driver</em></a> manual page.</p>
- </li>
+ <p>Other improvements:</p>
- <li>
- <p>clarify the use of <code>wint_t</code> vs
- <code>wchar_t</code> in <a href=
- "https://invisible-island.net/ncurses/man/curs_get_wstr.3x.html#h2-RETURN-VALUE">
- <em>get_wstr</em></a> manual page.</p>
+ <ul>
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/curs_add_wch.3x.html#h3-Line-Graphics">
+ curs_add_wch.3x</a> adds note about Unicode terminology for
+ the line-drawing characters.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/curs_color.3x.html#h3-RETURN-VALUE">
+ curs_color.3x</a> improves discussion of error returns and
+ extensions.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/curs_mouse.3x.html">
+ curs_mouse.3x</a> explains how the <tt>kmous</tt> and
+ <tt>XM</tt> capabilities are used for xterm-mouse
+ input.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/curs_refresh.3x.html#h3-wnoutrefresh_doupdate">
+ curs_refresh.3x</a> improves documentation regarding the
+ virtual and physical screens.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/curs_util.3x.html">
+ curs_util.3x</a> mentions a difference between SVr4 and
+ X/Open Curses for <tt>unctrl.h</tt></li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/curs_variables.3x.html#h2-PORTABILITY">
+ curs_variables.3x</a> improves description of the
+ <em>init_tabs</em> capability and <tt>TABSIZE</tt>
+ variable.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/ncurses.3x.html#h2-ALTERNATE-CONFIGURATIONS">
+ ncurses.3x</a> improves documentation regarding
+ feature-test macros in curses.h</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/resizeterm.3x.html#h3-resize_term">
+ resizeterm.3x</a> about top-level windows which touch the
+ screen's borders.</li>
+
+ <li><a href=
+ "https://invisible-island.net/ncurses/man/tput.1.html#h3-Terminal-Size">
+ tput.1</a> clarifies how <em>tput</em> determines the
+ terminal size.</li>
+ </ul>
</li>
+ </ul>
- <li>
- <p>clarify in the <a href=
- "https://invisible-island.net/ncurses/man/curs_getch.3x.html#h3-Predefined-key-codes">
- <em>getch</em></a> manual that the keypad mode affects an
- application's ability to read <code>KEY_MOUSE</code> codes,
- but does not affect <code>KEY_RESIZE</code>.</p>
-
- <p>trim some obsolete/incorrect wording about
- <code>EINTR</code> from the <em>getch</em> manual page</p>
+ <p>There are no new manual pages (all of the manual page updates
+ are to existing pages).</p>
- <p>improve manual pages for <a href=
- "https://invisible-island.net/ncurses/man/curs_getch.3x.html#h3-Keypad-Mode">
- <em>getch</em></a> and <a href=
- "https://invisible-island.net/ncurses/man/curs_get_wch.3x.html#h2-DESCRIPTION">
- <em>get_wch</em></a> to point out that they might return
- user-defined values which have no predefined names in
- <code>&lt;curses.h&gt;</code></p>
- </li>
+ <p>Some of the improvements are more subtle, relating to the way
+ the information is presented. For instance, the generated
+ terminfo.5 file uses a different table layout, allowing it to use
+ space on wide terminals more effectively.</p>
- <li>
- <p>improve description of the <code>-R</code> option in the
- <a href=
- "https://invisible-island.net/ncurses/man/infocmp.1m.html"><span class="part-name">
- infocmp</span></a> manual page</p>
- </li>
+ <h3><a name="h3-bug-fixes" id="h3-bug-fixes">Interesting
+ bug-fixes</a></h3>
- <li>
- <p>clarify in the <a href=
- "https://invisible-island.net/ncurses/man/resizeterm.3x.html#h2-NOTES">
- <em>resizeterm</em></a> manual page how
- <code>KEY_RESIZE</code> is pushed onto the input stream.</p>
- </li>
+ <p>While there were many bugs fixed during development of ncurses
+ 6.2, only a few (the reason for this release) were both important
+ and interesting. Most of the bug-fixes were for local issues
+ which did not affect compatibility across releases. Since those
+ are detailed in the NEWS file no elaboration is needed here.</p>
- <li>
- <p>document return value of <a href=
- "https://invisible-island.net/ncurses/man/curs_extend.3x#h2-RETURN-VALUE">
- <code>use_extended_names</code></a></p>
- </li>
+ <p>The interesting bugs were in tic/infocmp's handling of
+ user-defined capabilities. These were not recent bugs. Initially
+ it was a simple problem:</p>
- <li>
- <p>document differences in <a href=
- "https://invisible-island.net/ncurses/man/curs_variables.3x.html#h2-PORTABILITY">
- <code>ESCDELAY</code></a> versus AIX's implementation in the
- <em>variables</em> manual page.</p>
- </li>
+ <ul>
+ <li>The user-defined capabilities can be any type (boolean,
+ number or string), but once given a type all uses of the name
+ must conform to that type&mdash;unless some special support for
+ a particular multi-typed name is built into ncurses.</li>
<li>
- <p>The <code>_nc_free_tinfo</code> function is now documented
- in the <a href=
- "https://invisible-island.net/ncurses/man/curs_memleaks.3x.html">
- <em>memory-leaks</em></a> manual page, because it could be
- used in <span class="main-name">tack</span> for memory-leak
- checking.</p>
- </li>
+ <p>One of simpleterm's contributors copied some definitions
+ for using <em>tmux</em>'s user-defined capabilities in
+ <a href=
+ "https://git.suckless.org/st/commit/06f8cf8ca87a81db15816658c40b2afcd1ad5332.html">
+ late in 2016</a>.</p>
- <li>
- <p>add a note to the <a href=
- "https://invisible-island.net/ncurses/man/tic.1m.html"><span class="part-name">
- tic</span></a> manual page about -W versus -f options.</p>
+ <blockquote>
+ <pre class="demo-name">
+diff --git a/st.info b/st.info
+@@ -185,7 +185,10 @@ st| simpleterm,
+ tsl=\E]0;,
+ xenl,
+ vpa=\E[%i%p1%dd,
+-
++# Tmux unofficial extensions, see TERMINFO EXTENSIONS in tmux(1)
++ Se,
++ Ss,
++ Tc,
+
+ st-256color| simpleterm with 256 colors,
+ use=st,
+</pre>
+ </blockquote>
</li>
<li>
- <p>improve <em>terminfo manual</em> description of <a href=
- "https://invisible-island.net/ncurses/man/terminfo.5.html#h3-Terminfo-Capabilities-Syntax">
- terminfo syntax</a>.</p>
-
- <p>improve terminfo manual page discussion of <a href=
- "https://invisible-island.net/ncurses/man/terminfo.5.html#h3-Line-Graphics">
- control- and graphics- characters</a>.</p>
-
- <p>improve <a href=
- "https://invisible-island.net/ncurses/man/terminfo.5.html#h3-Color-Handling">
- color-handling</a> section in terminfo manual page</p>
+ <p>Later, in (referring to a version from <a href=
+ "https://git.suckless.org/st/commit/c0882f2ed1d7a2dd0fa2efa52157e6fc6fde3652.html">
+ mid-2017</a>), a user asked to have it updated in
+ ncurses.</p>
</li>
<li>
- <p>clarify description in <a href=
- "https://invisible-island.net/ncurses/man/tput.1.html#h2-PORTABILITY">
- <span class="part-name">tput</span></a> manual page regarding
- support for termcap names</p>
+ <p>However, it had an error from the change in late 2016. The
+ terminal description made what <em>tmux</em> expected to be
+ <strong>string</strong> actually a
+ <strong>boolean</strong>.</p>
- <p>update <a href=
- "https://invisible-island.net/ncurses/man/tput.1.html#h3-Aliases">
- <span class="part-name">tput</span></a> manual page to
- reflect changes to manipulate terminal modes by sharing
- functions with <span class="part-name">tset</span>.</p>
+ <p>Over the years, there were problems with each of
+ simpleterm's terminal descriptions. I repaired those, and
+ usually dealt with the problem.</p>
</li>
<li>
- <p>clarify in manual pages that the optional verbose option
- level of <a href=
- "https://invisible-island.net/ncurses/man/tic.1m.html#h2-OPTIONS">
- <span class="part-name">tic</span></a> and <a href=
- "https://invisible-island.net/ncurses/man/infocmp.1m.html#h3-Other-Options">
- <span class="part-name">infocmp</span></a> is available only
- when <span class="main-name">ncurses</span> is configured for
- tracing.</p>
+ <p>The difference in this case was that when compiling the
+ terminal database, <em>tic</em> may have in memory the
+ definitions for more than one terminal description (so that
+ it can resolve &ldquo;<tt>use=</tt>&rdquo; clauses). Seeing
+ two different types for the same name, in certain situations
+ it would incorrectly merge the symbol tables for the two
+ terminal descriptions.</p>
</li>
<li>
- <p>improve manual page description of <a href=
- "https://invisible-island.net/ncurses/man/tset.1.html"><em>tset/reset</em></a>
- versus window-size.</p>
- </li>
-
- <li>
- <p>improve description of <a href=
- "https://invisible-island.net/ncurses/man/curs_termcap.3x.html#h3-FORMATTING-CAPABILITIES">
- <em>tgoto</em></a> parameters</p>
+ <p>On simpleterm's side, their bug was finally fixed in
+ <a href=
+ "https://git.suckless.org/st/commit/83866428de031300eab03fbb116bcf7d2b1d4f60.html">
+ late 2019</a>, three years after the bug was created.</p>
</li>
</ul>
- <p>There are new manual pages:</p>
-
- <ul>
- <li><a href=
- "https://invisible-island.net/ncurses/man/user_caps.5.html"><em>
- user_caps</em></a> documents the terminfo extensions used by
- <span class="main-name">ncurses</span>.</li>
+ <p>For ncurses, the elapsed time to fix this bug was less than
+ three years. Someone reported a problem with the terminal
+ description a few weeks after releasing ncurses 6.1 (in <a href=
+ "https://github.com/tmux/tmux/issues/1264">tmux #1264</a>), and
+ the terminal description was updated that week (ncurses patch
+ <a href=
+ "https://invisible-island.net/ncurses/NEWS.html#t20180224">20180224</a>):</p>
- <li>
- <p><a href=
- "https://invisible-island.net/ncurses/man/scr_dump.5.html"><em>
- scr_dump</em></a> documents the screen-dump format.</p>
- </li>
- </ul>
+ <blockquote>
+ <pre class="demo-name">
+20180224
+ + modify _nc_resolve_uses2() to detect incompatible types when merging
+ a "use=" clause of extended capabilities. The problem was seen in a
+ defective terminfo integrated from simpleterm sources in 20171111,
+ compounded by repair in 20180121.
+ + correct Ss/Ms interchange in st-0.7 entry (tmux #1264) -TD
+</pre>
+ </blockquote>
- <p>Some of the improvements are more subtle, relating to the way
- the information is presented:</p>
+ <p>The larger part of that change added a check to prevent a
+ simple merge of terminal descriptions where the same user-defined
+ name was used with different types. But it raised some
+ questions:</p>
<ul>
<li>
- <p>Made minor fixes to manpage <em>NAME/SYNOPSIS</em>
- sections to consistently use rule that either all functions
- which are prototyped in <em>SYNOPSIS</em> are listed in the
- <em>NAME</em> section, or the manual-page name is the sole
- item listed in the <em>NAME</em> section. The latter is used
- to reduce clutter, e.g., for the top-level library manual
- pages as well as for certain feature-pages such as <a href=
- "https://invisible-island.net/ncurses/man/curs_sp_funcs.3x.html">
- <em>SP-funcs</em></a> and <a href=
- "https://invisible-island.net/ncurses/man/curs_threads.3x.html">
- <em>threading</em></a>.</p>
- </li>
-
- <li>
- <p>improve manual pages for utilities with respect to POSIX
- versus X/Open Curses.</p>
+ <p>Was there a reliable way to manage terminal descriptions
+ which used the same extended name in different ways?</p>
</li>
<li>
- <p>improve organization of the <a href=
- "https://invisible-island.net/ncurses/man/curs_attr.3x.html"><em>
- attributes</em></a> and <a href=
- "/ncurses/man/curs_color.3x.html"><em>color</em></a> manual
- pages.</p>
+ <p>Should ncurses provide a registry of well-known extended
+ names, with their types?</p>
</li>
</ul>
- <h3><a name="h3-bug-fixes" id="h3-bug-fixes">Interesting
- bug-fixes</a></h3>
+ <p>Since the correction to <a href=
+ "https://invisible-island.net/ncurses/ncurses.html#download_database">
+ <tt>terminfo.src</tt></a> could have been readily adopted by
+ packagers, there was nothing more to be done from ncurses'
+ standpoint on that part. But improving ncurses to prevent issues
+ like that is the reason for making a release.</p>
+
+ <p>Nothing more (constructive) was mentioned with regard to
+ simpleterm. But a few problems were found in the handling of
+ user-defined capabilities:</p>
<ul>
<li>
- <p>modify <span class="part-name">toe</span> to not exit if
- unable to read a terminal description, e.g., if there is a
- permission problem.</p>
- </li>
+ <p>Forward-references to user-defined capabilities in a
+ &ldquo;<tt>use=</tt>&rdquo; clause did not allocate new data
+ for each use. In <em>tic</em>, successive compilation of
+ terminal entries could add user-defined capabilities to the
+ wrong terminal entry.</p>
- <li>
- <p>correct 20100515 change for weak signals versus
- sigprocmask</p>
+ <p>This was not noticed before, since xterm's terminal
+ descriptions were the main users of the feature, and almost
+ all of the uses of the building-blocks which contained
+ user-defined capabilities were backward-references.</p>
</li>
- <li>work around Ada tool-breakage in Debian 9 and later by
- invoking <code>gprconfig</code> to specify the C compiler to be
- used by <code>gnatmake</code>, and conditionally suppressing
- <code>Library_Options</code> line for static libraries.</li>
-
<li>
- <p>There were, as well, several bug-fixes to handle illegal
- input for <span class="part-name">tic</span>. Because those
- did not correspond to useful terminal descriptions, most
- users are unaffected.</p>
+ <p>There is one (documented) case where ncurses 6.1 supports
+ a user-defined capability that could be any type (i.e.,
+ &ldquo;RGB&rdquo;). The check added in February 2018 to guard
+ against mismatches did not handle all of the combinations
+ needed.</p>
</li>
</ul>
+ <p>Both of these issues dated from the original implementation of
+ user-defined capabilities. Fixing them does not change the
+ terminal database, but a older <em>tic</em> without the fixes
+ will not be able to handle terminfo sources which rely upon those
+ fixes. Starting in June 2019, the download link for the terminfo
+ source file was capped at that date. The development sources have
+ an up-to-date copy of the file, for people with a legitimate need
+ for it.</p>
+
+ <p>The &ldquo;<tt>-c</tt>&rdquo; (check) option of <em>tic</em>
+ is not very useful if it cannot offer advice on parameters needed
+ for user-defined capabilities. The various <em>Caps</em> files
+ were reorganized to reduce redundancy, and in the common portion
+ (<a href=
+ "https://github.com/ThomasDickey/ncurses-snapshots/blob/master/include/Caps-ncurses">Caps-ncurses</a>),
+ a registry of user-defined capabilities is provided for use by
+ <em>tic</em>. While users can still define their own custom
+ capabilities, <em>tic</em> will not offer any advice when their
+ parameters do not match.</p>
+
+ <p>In ncurses 6.2, <em>tic</em> makes a special check to allow
+ any type for <em>RGB</em>, but its being able to do this relies
+ upon fixes made in the ncurses library in mid-2019.</p>
+
<h3><a name="h3-config-config" id=
"h3-config-config">Configuration changes</a></h3>
<h4><a name="h4-config-major" id="h4-config-major">Major
changes</a></h4>
- <p>This release provides a new binary format for terminal
- descriptions that use extended numeric capabilities. Applications
- built with the wide-character <em>ncursesw</em> library can use
- these extended numbers.</p>
-
- <ul>
- <li>
- <p>This includes utilities such as <span class=
- "part-name">tic</span> and <span class=
- "part-name">infocmp</span>, because (as noted in <a href=
- "#h4-new-library"><em>New features</em></a>), the feature
- relies upon an extension to the low-level <em>tinfo</em>
- library.</p>
- </li>
-
- <li>
- <p>A few software packagers use a configuration option of
- <span class="main-name">ncurses</span> which allows the
- low-level <em>tinfo</em> library to be shared between the
- high-level <em>ncurses</em> and <em>ncursesw</em> libraries.
- This new feature was designed to work in that configuration
- as well.</p>
- </li>
- </ul>
-
- <p>Other applications (i.e., using the 8-bit <em>ncurses</em>
- library) which read the extended terminal descriptions see those
- numeric capabilities set to the maximum value for a signed 16-bit
- number.</p>
-
- <p>Older versions of <span class="main-name">ncurses</span>'
- <span class="part-name">tic</span> accept out-of-range numeric
- capabilities, storing those as the maximum value for a signed
- 16-bit number. Other implementations of curses (mentioned in the
- discussion of <a href=
- "https://invisible-island.net/ncurses/ncurses-slang.html#compare_picsmap">
- <span class="part-name">picsmap</span></a>) give zero for these
- out-of-range capabilities.</p>
+ <p>There are no major changes. Several new options were added to
+ ease integration of packages with systems using different
+ versions of <em>GNAT</em> and <em>ncurses</em>. Also,
+ improvements were made to configure checks.</p>
<h4><a name="h4-config-options" id=
"h4-config-options">Configuration options</a></h4>
- <p>These changes provide support for <span class=
- "main-name">tack</span> 1.08, released in <a href=
- "https://invisible-island.net/ncurses/tack/CHANGES.html#index-t20170726">
- July 2017</a>:</p>
+ <p>There are a few new/modified configure options:</p>
- <ul>
- <li>
- <p>add <code>--without-tack</code> configure option to refine
- <code>--with-progs</code> configure option. Normally
- <span class="main-name">tack</span> is built outside the
- <span class="main-name">ncurses</span> tree, but a few
- packagers combine it during the build. If
- <code>term_entry.h</code> is installed, there is no advantage
- to in-tree builds.</p>
- </li>
-
- <li>
- <p>adjust configure-script to define
- <code>HAVE_CURSES_DATA_BOOLNAMES</code> symbol needed for
- <span class="main-name">tack</span> 1.08 when built in-tree.
- Rather than relying upon internal "_nc_" functions,
- <span class="main-name">tack</span> now uses the boolean,
- number and string capability name-arrays provided by
- <span class="main-name">ncurses</span> and SVr4 Unix curses.
- It still uses <code>term_entry.h</code> for the definitions
- of the extended capability arrays.</p>
- </li>
-
- <li>
- <p>add dependency upon ncurses_cfg.h to <span class=
- "part-name">tic</span>'s header-files; any program using
- <span class="part-name">tic</span>-library will have to
- supply this file. Legacy <span class="main-name">tack</span>
- versions supply this file; ongoing <span class=
- "main-name">tack</span> development has dropped the
- dependency upon <span class="part-name">tic</span>-library
- and new releases will not be affected.</p>
- </li>
- </ul>
+ <dl>
+ <dt><tt>--with-config-suffix</tt>
+ </dt>
- <p>Other changes to the configure-script and generated files
- include</p>
+ <dd>
+ <p>helps work around a filename conflict with Debian packages
+ versus test-packages.</p>
+ </dd>
- <ul>
- <li>
- <p>add configure options to disable checks for form, menu and
- panel libraries so that ncurses-examples can be built with
- non-SVr4 curses implementations.</p>
- </li>
+ <dt><tt>--with-ada-libname</tt>
+ </dt>
- <li>
- <p>add configure option <code>--enable-opaque-curses</code>
- for <em>ncurses</em> library and similar options for the
- other libraries.</p>
- </li>
+ <dd>
+ <p>allows one to rename the &ldquo;AdaCurses&rdquo; library
+ (at least one packager prefers a lowercase name).</p>
+ </dd>
- <li>
- <p>add configure option <code>--disable-wattr-macros</code>
- for use in cases where one wants to use the same headers for
- ncurses5/ncurses6 development, by suppressing the
- <em>wattr*</em> macros which differ due to the introduction
- of extended colors</p>
- </li>
+ <dt><tt>--with-fallbacks</tt>
+ </dt>
- <li>
- <p>modify configure macro for shared-library rules to use
- <code>-Wl,-rpath</code> rather than <code>-rpath</code> to
- work around a bug in <span class="part-name">scons</span></p>
- </li>
+ <dd>
+ <p>now ensures there is a value, and adds the fallback
+ information to top-level Makefile summary.</p>
+ </dd>
- <li>
- <p>improve ncurses-examples' configure script to define as
- needed <code>NCURSES_WIDECHAR</code> for platforms where
- <code>_XOPEN_SOURCE_EXTENDED</code> does not work. Also
- modified the test program to ensure that if building with
- <span class="main-name">ncurses</span>, that the
- <code>cchar_t</code> type is checked, since that is normally
- (since <a href=
- "https://invisible-island.net/ncurses/NEWS.html#t20111030">20111030</a>)
- ifdef'd depending on this test.</p>
- </li>
+ <dt><tt>--with-pcre2</tt>
+ </dt>
- <li>
- <p>modify configure script to handle the case where
- <span class="part-name">tic</span>-library is renamed, but
- the <code>--with-debug</code> option is used by itself
- without normal or shared libraries</p>
- </li>
+ <dd>
+ <p>check for pcre-posix library to help with MinGW port.</p>
+ </dd>
- <li>
- <p>modify editing script which generates resulting.map to
- work with the clang configuration on recent FreeBSD, which
- gives an error on an empty "local" section.</p>
- </li>
+ <dt><tt>--with-tic-path</tt> and<br></dt>
- <li>
- <p>improve configure check for setting the
- <code>WILDCARD_SYMS</code> variable; on ppc64 the variable is
- in the <strong><em>Data</em></strong> section rather than
- <strong><em>Text</em></strong>.</p>
- </li>
+ <dt><tt>--with-infocmp-path</tt>
+ </dt>
- <li>
- <p>correct result of configure option
- <code>--without-fallbacks</code>, which caused FALLBACK_LIST
- to be set to "no"</p>
- </li>
+ <dd>
+ <p>help work around problems building fallback source using
+ pre-6.0 tic/infocmp.</p>
+ </dd>
- <li>
- <p>modify <code>--with-pkg-config-libdir</code> option to
- make it possible to install &ldquo;.pc&rdquo; files even if
- <span class="part-name">pkg-config</span> is not found. Limit
- this change, to suppress the actual install if it is not
- overridden to a valid directory at install time.</p>
- </li>
+ <dt><tt>--with-versioned-syms</tt>
+ </dt>
- <li>
- <p>disallow &ldquo;no&rdquo; as a possible value for
- <code>--with-shlib-version</code> option, overlooked in
- cleanup-changes for <a href=
- "https://invisible-island.net/ncurses/NEWS.html#t20000708">20000708</a>.</p>
- </li>
- </ul>
+ <dd>
+ <p>option value can now be a relative pathname.</p>
+ </dd>
+ </dl>
- <h3><a name="h3-portability" id=
- "h3-portability">Portability</a></h3>
+ <h3><a name="h3-portability" id="h3-portability">Portability</a></h3>
<p>Many of the portability changes are implemented via the
configure script:</p>
<ul>
<li>
- <p>improve configure script's <code>CF_CC_ENV_FLAGS</code>
- macro to allow for compiler wrappers such as <span class=
- "part-name">ccache</span>. This change moves only the
- preprocessor, optimization and warning flags to
- <code>CPPFLAGS</code> and <code>CFLAGS</code>, leaving the
- residue in <code>CC</code>. That happens to work for
- <span class="part-name">gcc</span>'s various
- &ldquo;model&rdquo; options, but may require tuning for other
- compilers.</p>
+ <p>ignore <a href=
+ "/ncurses/man/ncurses.3x.html#h3-TERMINFO"><tt>$TERMINFO</tt></a>
+ as a default value in configure script if it came from the
+ <tt>infocmp</tt> <strong><tt>-Q</tt></strong> option.</p>
</li>
<li>
- <p>modify ncurses-examples' configure script to use
- <span class="part-name">pkg-config</span> for the extra
- form/menu/panel libraries, to be more consistent with the
- handling of the curses/ncurses library.</p>
+ <p>distinguish gcc from icc and clang when the
+ <tt>--enable-warnings</tt> option is not used, to avoid
+ unnecessary warnings about unrecognized inline options</p>
</li>
<li>
- <p>add configuration checks to build with <a href=
- "https://invisible-island.net/ncurses/ncurses-netbsd.html">NetBSD
- curses</a>, which for example lacks <a href=
- "https://invisible-island.net/ncurses/man/curs_util.3x.html#h3-use_env">
- <code>use_env</code></a>.</p>
+ <p>consistently prepend new libraries as they are found
+ during configuration, rather than relying upon the linker to
+ resolve order dependencies of libraries.</p>
</li>
<li>
- <p>change ncurses-examples to use <code>attr_t</code> vs
- <code>chtype</code> to follow X/Open documentation more
- closely since Solaris xpg4-curses uses different values for
- <code>WA_<em>xxx</em></code> vs <code>A_<em>xxx</em></code>
- that rely on attr_t being an unsigned short. Tru64 aka OSF1,
- HPUX, AIX did as <span class="main-name">ncurses</span> does,
- equating the two sets.</p>
- </li>
+ <p>modified configure scripts to reduce relinking/ranlib
+ during library install :</p>
- <li>
- <p>modify several test programs to reflect that <span class=
- "main-name">ncurses</span> honors existing signal handlers in
- initscr, while other implementations do not.</p>
+ <ul>
+ <li>use &ldquo;<tt>install -p</tt>&rdquo; when available,
+ to avoid need for ranlib of static libraries.</li>
+
+ <li>scripts which use
+ &ldquo;<tt>--disable-relink</tt>;&rdquo; add a 1-second
+ sleep to work around tools which use whole-second
+ timestamps, e.g., in <tt>utime</tt> rather than the actual
+ file system resolution.</li>
+ </ul>
</li>
<li>
- <p>add configure check for <code>openpty</code> to
- ncurses-examples' configure script, for <span class=
- "part-name">ditto</span>.</p>
- </li>
+ <p id="getenv-check">add configure check for <a href=
+ "#getenv-fixes"><tt>getenv</tt></a> to work around
+ implementation shown in Emscripten which overwrites the
+ previous return value on each call.</p>
- <li>
- <p>improve check for working <code>poll</code> function by
- using <code>posix_openpt</code> as a fallback in case there
- is no valid terminal on the standard input</p>
+ <p>Use that to optionally suppress <tt>START_TRACE</tt>
+ macro, whose call to <tt>getenv</tt> may not work
+ properly</p>
</li>
<li>
- <p>modify ncurses-examples' configure script to check for
- <span class="part-name">pthread</span> dependency of
- <em>ncursest</em> or <em>ncursestw</em> library when building
- the <span class="main-name">ncurses</span> examples, e.g., in
- case weak symbols are used.</p>
+ <p>change target configure level for <tt>_XOPEN_SOURCE</tt>
+ to 600 to address use of <tt>vsscanf</tt> and
+ <tt>setenv</tt>.</p>
</li>
<li>
- <p>add checks in ncurses-examples' configure script for some
- functions neither in 4.3BSD curses, nor based on X/Open
- Curses:</p>
+ <p>reduce use of <tt>_GNU_SOURCE</tt> for current glibc where
+ <tt>_DEFAULT_SOURCE</tt> combines with
+ <tt>_XOPEN_SOURCE</tt></p>
- <ul>
- <li>
- <p>modify a loop limit in firework.c to work around
- absense of limit checks in some libraries.</p>
- </li>
+ <p>Allow for Cygwin's newlib when checking for the
+ _DEFAULT_SOURCE symbol.</p>
- <li>
- <p>fill the last row of a window with
- &ldquo;<code>?</code>&rdquo; in firstlast if waddch does
- not return <code>ERR</code> on the lower-right
- corner.</p>
- </li>
- </ul>
+ <p>MidnightBSD is now checked for the
+ <tt>_XOPEN_SOURCE</tt>-related definitions.</p>
</li>
<li>
- <p>build-fixes for the Portland Group (PGI) compilers</p>
+ <p>If the check for <tt>va_copy</tt> or <tt>__va_copy</tt>
+ fails,</p>
<ul>
- <li>
- <p>accept whitespace in <span class=
- "part-name">sed</span> expression for generating
- expanded.c</p>
- </li>
+ <li>configure now tries copying the pointers for
+ <tt>va_list</tt>, or as an array.</li>
- <li>
- <p>modify configure check that g++ compiler warnings are
- not used.</p>
- </li>
-
- <li>
- <p>add configure check for -fPIC option needed for shared
- libraries.</p>
- </li>
+ <li>alternatively, it checks for
+ <tt>__builtin_va_copy</tt>(), which could be used with AIX
+ <tt>xlc</tt> in <em>c89</em> mode.</li>
</ul>
</li>
<li>
- <p>modify configure script for clang as used on FreeBSD, to
- work around clang's differences in exit codes vs gcc.</p>
- </li>
-
- <li>
- <p>fixes for configure/build using clang on OSX</p>
+ <p>several changes to support a port to Ultrix 3.1:</p>
<ul>
- <li>
- <p>do not redefine &ldquo;inline&rdquo; in
- <code>ncurses_cfg.h</code>; this was originally to solve
- a problem with gcc/g++, but is aggravated by clang's
- misuse of symbols to pretend it is gcc.</p>
- </li>
+ <li>check if "b" binary feature of fopen works</li>
- <li>
- <p>add braces to configure script to prevent unwanted
- addition of &ldquo;<code>-lstdc++</code>&rdquo; option to
- the <code>CXXLIBS</code> symbol.</p>
- </li>
+ <li>check for missing feature of locale.h</li>
- <li>
- <p>improve/update test-program used for checking
- existence of stdc++ library.</p>
- </li>
+ <li>add fallback for strstr() in test-programs</li>
- <li>
- <p>if <code>$CXXLIBS</code> is set, the linkage test uses
- that in addition to <code>$LIBS</code>.</p>
- </li>
+ <li>add fallback for STDOUT_FILENO in test-programs</li>
</ul>
</li>
<li>
- <p>fixes for OS/2:</p>
+ <p>The <em>test/configure</em> script (used for <a href=
+ "/ncurses/ncurses-examples.html"><em>ncurses-examples</em></a>)
+ is improved:</p>
<ul>
- <li>
- <p>use button instead of <code>kbuf[0]</code> in
- EMX-specific part of <code>lib_mouse.c</code></p>
- </li>
+ <li>work around non-ncurses termcap.h file, e.g., in
+ Slackware.</li>
- <li>
- <p>support building with <span class=
- "part-name">libtool</span> on OS/2</p>
- </li>
-
- <li>
- <p>use stdc++ library with OS/2 kLIBC</p>
- </li>
+ <li>check for <a href=
+ "/ncurses/man/curs_variables.3x.html#h3-TABSIZE"><tt>TABSIZE</tt></a>
+ variable.</li>
- <li>
- <p>clear configure script's <code>cf_XOPEN_SOURCE</code>
- for OS/2, to work with its header files</p>
- </li>
+ <li>checks for the X11/Intrinsic.h header, accommodate
+ recent MacOS changes which largely emptied
+ <tt>/usr/include</tt>.</li>
</ul>
</li>
+ </ul>
- <li>
- <p>add &ldquo;newer&rdquo; baudrate symbols to the <a href=
- "https://invisible-island.net/ncurses/man/curs_termattrs.3x.html#h3-baudrate">
- <code>baudrate</code></a> function in the ncurses library as
- well as to a corresponding table in <span class=
- "part-name">tset</span>.</p>
- </li>
+ <p>Here are some of the other portability fixes:</p>
+ <ul>
<li>
- <p>modify ncurses-examples <span class=
- "part-name">savescreen</span> to work with AIX and HPUX.</p>
+ <p>added dummy "check" rule in top-level and test-Makefile to
+ simplify building test-packages for ArchLinux.</p>
</li>
<li>
- <p>define <code>WIN32_LEAN_AND_MEAN</code> for MinGW port,
- making builds faster.</p>
+ <p>dropped library-dependency on psapi for MinGW port, since
+ win_driver.c defines <tt>PSAPI_VERSION</tt> to 2, making it
+ use <tt>GetProcessImageFileName</tt> from kernel32.dll</p>
</li>
<li>
- <p>add a configure check for <em>wcwidth</em> versus the
- <span class="main-name">ncurses</span> line-drawing
- characters, to use in special-casing systems such as Solaris.
- Solaris, however, requires a special case that maps Unicode
- line-drawing characters into the acsc string for non-Unicode
- locales. Solaris also has a misconfigured wcwidth which marks
- all of the line drawing characters as double-width.</p>
+ <p>made build-fixes for configuration using --program-suffix
+ with Ada95, noticed with MacOS but applicable to other
+ platforms without libpanelw, etc.</p>
</li>
<li>
- <p>string-hacks (non-standard):</p>
-
- <ul>
- <li>
- <p>fix configure script to record when
- <code>strlcat</code> is found on OpenBSD.</p>
- </li>
-
- <li>
- <p>add <code>--enable-string-hacks</code> option to
- ncurses-examples' configure script.</p>
- </li>
-
- <li>
- <p>completed string-hacks for <em>sprintf</em>, etc.,
- including the ncurses-examples programs.</p>
- </li>
-
- <li>
- <p>make <code>--enable-string-hacks</code> option work
- with Debian by checking for the "bsd" library and its
- associated "&lt;bsd/string.h&gt;" header.</p>
- </li>
- </ul>
+ <p>modified ncurses/Makefile.in to fix a case where
+ Debian/testing changes to the ld --as-needed configuration
+ broke ncurses-examples test packages.</p>
</li>
<li>
- <p>workaround for Debian's antique/unmaintained version of
- mawk:</p>
-
- <ul>
- <li>
- <p>see Debian #65617, which was fixed in <span class=
- "main-name">mawk</span>'s upstream releases in <a href=
- "https://invisible-island.net/mawk/CHANGES.html#t20090727">
- 2009</a>.</p>
- </li>
-
- <li>
- <p>related fixes when building link_test.</p>
- </li>
- </ul>
+ <p>used <tt>_WIN32</tt>/<tt>_WIN64</tt> in preference to
+ <tt>__MINGW32__</tt>/<tt>__MINGW64__</tt> symbols to simplify
+ building with Microsoft Visual C++, since the former are
+ defined in both compiler configurations.</p>
</li>
</ul>
+
<hr>
<h2><a name="h2-features" id="h2-features">Features of
@@ -2587,7 +1809,8 @@ p,li { max-width:700px; }
<blockquote>
<dl>
- <dt><span class="part-name">aptitude</span></dt>
+ <dt><span class="part-name">aptitude</span>
+ </dt>
<dd>
<p>FrontEnd to Apt, the debian package manager</p>
@@ -2596,17 +1819,20 @@ p,li { max-width:700px; }
"https://wiki.debian.org/Aptitude">https://wiki.debian.org/Aptitude</a></p>
</dd>
- <dt><span class="part-name">cdk</span></dt>
+ <dt><span class="part-name">cdk</span>
+ </dt>
<dd>
<p>Curses Development Kit</p>
<p><a href=
"https://invisible-island.net/cdk/">https://invisible-island.net/cdk/</a><br>
+
</p>
</dd>
- <dt><span class="part-name">ded</span></dt>
+ <dt><span class="part-name">ded</span>
+ </dt>
<dd>
<p>directory-editor</p>
@@ -2615,7 +1841,8 @@ p,li { max-width:700px; }
"https://invisible-island.net/ded/">https://invisible-island.net/ded/</a></p>
</dd>
- <dt><span class="part-name">dialog</span></dt>
+ <dt><span class="part-name">dialog</span>
+ </dt>
<dd>
<p>the underlying application used in Slackware's setup,
@@ -2626,7 +1853,8 @@ p,li { max-width:700px; }
"https://invisible-island.net/dialog/">https://invisible-island.net/dialog/</a></p>
</dd>
- <dt><span class="part-name">lynx</span></dt>
+ <dt><span class="part-name">lynx</span>
+ </dt>
<dd>
<p>the text WWW browser</p>
@@ -2635,16 +1863,17 @@ p,li { max-width:700px; }
"https://lynx.invisible-island.net/">https://lynx.invisible-island.net/</a></p>
</dd>
- <dt><span class="part-name">mutt</span></dt>
+ <dt><span class="part-name">mutt</span>
+ </dt>
<dd>
<p>mail utility</p>
- <p><a href=
- "http://www.mutt.org/">http://www.mutt.org/</a></p>
+ <p><a href="http://www.mutt.org/">http://www.mutt.org/</a></p>
</dd>
- <dt><span class="part-name">ncftp</span></dt>
+ <dt><span class="part-name">ncftp</span>
+ </dt>
<dd>
<p>file-transfer utility</p>
@@ -2653,17 +1882,20 @@ p,li { max-width:700px; }
"https://www.ncftp.com/">https://www.ncftp.com/</a></p>
</dd>
- <dt><span class="part-name">nvi</span></dt>
+ <dt><span class="part-name">nvi</span>
+ </dt>
<dd>
<p>New vi uses ncurses.</p>
<p><a href=
"https://sites.google.com/a/bostic.com/keithbostic/vi">https://sites.google.com/a/bostic.com/keithbostic/vi</a><br>
+
</p>
</dd>
- <dt><span class="part-name">ranger</span></dt>
+ <dt><span class="part-name">ranger</span>
+ </dt>
<dd>
<p>A console file manager with VI key bindings in
@@ -2673,16 +1905,17 @@ p,li { max-width:700px; }
"https://ranger.github.io/">https://ranger.github.io/</a></p>
</dd>
- <dt><span class="part-name">tin</span></dt>
+ <dt><span class="part-name">tin</span>
+ </dt>
<dd>
<p>newsreader, supporting color, MIME</p>
- <p><a href=
- "http://www.tin.org/">http://www.tin.org/</a></p>
+ <p><a href="http://www.tin.org/">http://www.tin.org/</a></p>
</dd>
- <dt><span class="part-name">vifm</span></dt>
+ <dt><span class="part-name">vifm</span>
+ </dt>
<dd>
<p>File manager with vi like keybindings</p>
@@ -2697,7 +1930,8 @@ p,li { max-width:700px; }
<blockquote>
<dl>
- <dt><span class="part-name">minicom</span></dt>
+ <dt><span class="part-name">minicom</span>
+ </dt>
<dd>
<p>terminal emulator for serial modem connections</p>
@@ -2706,7 +1940,8 @@ p,li { max-width:700px; }
"https://alioth.debian.org/projects/minicom/">https://alioth.debian.org/projects/minicom/</a></p>
</dd>
- <dt><span class="part-name">mosh</span></dt>
+ <dt><span class="part-name">mosh</span>
+ </dt>
<dd>
<p>a replacement for <code>ssh</code>.</p>
@@ -2715,7 +1950,8 @@ p,li { max-width:700px; }
"https://mosh.mit.edu/">https://mosh.mit.edu/</a></p>
</dd>
- <dt><span class="part-name">tack</span></dt>
+ <dt><span class="part-name">tack</span>
+ </dt>
<dd>
<p>terminfo action checker</p>
@@ -2724,7 +1960,8 @@ p,li { max-width:700px; }
"https://invisible-island.net/ncurses/tack.html">https://invisible-island.net/ncurses/tack.html</a></p>
</dd>
- <dt><span class="part-name">tmux</span></dt>
+ <dt><span class="part-name">tmux</span>
+ </dt>
<dd>
<p>terminal multiplexor</p>
@@ -2733,11 +1970,12 @@ p,li { max-width:700px; }
"https://github.com/tmux/tmux/wiki">https://github.com/tmux/tmux/wiki</a></p>
</dd>
- <dt><span class="part-name">vile</span></dt>
+ <dt><span class="part-name">vile</span>
+ </dt>
<dd>
- <p>vi-like-emacs may be built to use the terminfo, termcap
- or curses interfaces.</p>
+ <p><em>vi-like-emacs</em> may be built to use the terminfo,
+ termcap or curses interfaces.</p>
<p><a href=
"https://invisible-island.net/vile/">https://invisible-island.net/vile/</a></p>
@@ -2749,7 +1987,8 @@ p,li { max-width:700px; }
<blockquote>
<dl>
- <dt><span class="part-name">emacs</span></dt>
+ <dt><span class="part-name">emacs</span>
+ </dt>
<dd>
<p>text editor</p>
@@ -2758,7 +1997,8 @@ p,li { max-width:700px; }
"https://www.gnu.org/software/emacs/">https://www.gnu.org/software/emacs/</a></p>
</dd>
- <dt><span class="part-name">less</span></dt>
+ <dt><span class="part-name">less</span>
+ </dt>
<dd>
<p>The most commonly used <em>pager</em> (a program that
@@ -2768,7 +2008,8 @@ p,li { max-width:700px; }
"http://www.greenwoodsoftware.com/less/">http://www.greenwoodsoftware.com/less/</a></p>
</dd>
- <dt><span class="part-name">screen</span></dt>
+ <dt><span class="part-name">screen</span>
+ </dt>
<dd>
<p>terminal multiplexor</p>
@@ -2777,13 +2018,13 @@ p,li { max-width:700px; }
"https://www.gnu.org/software/screen/">https://www.gnu.org/software/screen/</a></p>
</dd>
- <dt><span class="part-name">vim</span></dt>
+ <dt><span class="part-name">vim</span>
+ </dt>
<dd>
<p>text editor</p>
- <p><a href=
- "https://www.vim.org/">https://www.vim.org/</a></p>
+ <p><a href="https://www.vim.org/">https://www.vim.org/</a></p>
</dd>
</dl>
</blockquote>
@@ -2794,12 +2035,18 @@ p,li { max-width:700px; }
<p>Zeyd Ben-Halim started <span class="main-name">ncurses</span>
from a previous package pcurses, written by Pavel Curtis. Eric S.
Raymond continued development. J&uuml;rgen Pfeifer wrote most of
- the form and menu libraries. Ongoing development work is done by
- <a href="mailto:dickey@invisible-island.net">Thomas Dickey</a>.
- Thomas Dickey also acts as the maintainer for the Free Software
- Foundation, which holds the <a href=
+ the form and menu libraries.</p>
+
+ <p>Ongoing development work is done by <a href=
+ "mailto:dickey@invisible-island.net">Thomas E. Dickey</a>. Thomas
+ E. Dickey has acted as the maintainer for the Free Software
+ Foundation, which holds a <a href=
"https://invisible-island.net/ncurses/ncurses-license.html">copyright
- on ncurses</a>.</p>
+ on ncurses</a> for releases 4.2 through 6.1. Following the
+ release of ncurses 6.1, effective as of release 6.2, copyright
+ for ncurses reverted to Thomas E. Dickey (see the <a href=
+ "https://invisible-island.net/ncurses/ncurses.faq.html#relicensed">
+ ncurses FAQ</a> for additional information).</p>
<p>Contact the current maintainers at</p>
@@ -2812,7 +2059,8 @@ p,li { max-width:700px; }
<blockquote>
<a href=
"mailto:bug-ncurses-request@gnu.org">bug-ncurses-request@gnu.org</a>
- </blockquote>containing the line:
+ </blockquote>
+ containing the line:
<blockquote>
<p><code>subscribe</code>
@@ -2822,15 +2070,25 @@ p,li { max-width:700px; }
<p>This list is open to anyone interested in helping with the
development and testing of this package.</p>
- <p>Beta versions of <span class="main-name">ncurses</span> and
- patches to the current release are made available at</p>
+ <p>Beta versions of <span class="main-name">ncurses</span> are
+ made available at</p>
<blockquote>
<p><a href=
- "ftp://ftp.invisible-island.net/ncurses/">ftp://ftp.invisible-island.net/ncurses/</a>
+ "ftp://ftp.invisible-island.net/ncurses/current/">ftp://ftp.invisible-island.net/ncurses/current/</a>
and<br>
<a href=
- "https://invisible-mirror.net/archives/ncurses/">https://invisible-mirror.net/archives/ncurses/</a>&nbsp;.</p>
+ "https://invisible-mirror.net/archives/ncurses/current/">https://invisible-mirror.net/archives/ncurses/current/</a>&nbsp;.</p>
+ </blockquote>
+
+ <p>Patches to the current release are made available at</p>
+
+ <blockquote>
+ <p><a href=
+ "ftp://ftp.invisible-island.net/ncurses/6.1/">ftp://ftp.invisible-island.net/ncurses/6.1/</a>
+ and<br>
+ <a href=
+ "https://invisible-mirror.net/archives/ncurses/6.1/">https://invisible-mirror.net/archives/ncurses/6.1/</a>&nbsp;.</p>
</blockquote>
<p>There is an archive of the mailing list here:</p>
@@ -2889,7 +2147,10 @@ p,li { max-width:700px; }
<p>You can find lots of information on terminal-related topics
not covered in the terminfo file at <a href=
"http://web.archive.org/web/*/http://www.cs.utk.edu/~shuford/terminal">
- Richard Shuford's archive</a>&nbsp;.</p>
+ Richard Shuford's archive</a>&nbsp;. The collection of computer
+ manuals at <a href=
+ "http://www.bitsavers.org/pdf/">bitsavers.org</a> has also been
+ useful.</p>
<div class="nav">
<ul>
@@ -2924,8 +2185,7 @@ p,li { max-width:700px; }
<li><a href="#h3-documentation">Documentation</a></li>
- <li><a href="#h3-bug-fixes">Interesting
- bug-fixes</a></li>
+ <li><a href="#h3-bug-fixes">Interesting bug-fixes</a></li>
<li>
<a href="#h3-config-config">Configuration changes</a>