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diff --git a/doc/html/announce.html b/doc/html/announce.html index 45c0c1254da0..070f504146a5 100644 --- a/doc/html/announce.html +++ b/doc/html/announce.html @@ -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><term.h></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 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 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., - “ncursesw” 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 - (“int” versus “short”). 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><term.h></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> 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> 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 - “future” 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 “too + large”.</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></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 “<tt>const</tt>” 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 “<tt>const</tt>” + 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 “<tt>const</tt>” 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 - “tput flash” 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 - “<code>*</code>” 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 “<span class= - "part-name">tput reset</span>” 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 “<span class= - "part-name">reset</span>” (aka <span class= - "part-name">tset</span>) to the “<code>tput - reset</code>” 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 “init” or “reset” to - allow for transformed names.</p> - </li> - - <li> - <p>add “clear” 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 “sane” if the program is run - as “reset”, 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 - “<code>tset -w</code>” to <span class= - "part-name">tput</span>, like the - “<code>-c</code>” 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 “<code>-n</code>” 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 “<code>-W</code>” 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 - “<code>-w</code>” 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 “<code>-f</code>” option splits line, - do not further split it with - “<code>-W</code>”.</p> - </li> - - <li> - <p>Begin a new line when adding - “<code>use=</code>” 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 “<code>-q</code>” option to <span class= - "part-name">infocmp</span> to suppress the - “<code>Reconstructed from</code>” comment from - the header, and a corresponding option to <span class= - "part-name">tic</span> to suppress all comments from the - “<code>tic -I</code>” 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 “<code>-0</code>” - option.</p> - </li> - - <li> - <p>add <span class="part-name">infocmp</span>/<span class= - "part-name">tic</span> “<code>-Q</code>” option, - which allows one to dump the compiled form of the terminal - entry, in hexadecimal or base64:</p> - - <ul> - <li>A “<code>b64:</code>” 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 “<code>hex:</code>” prefix tells the - terminfo reader to accept hexadecimal data as generated by - “<code>infocmp -0qQ1</code>”.</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 “<code>reset</code>” 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 “<code>-T</code>” 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 “<code>-T</code>” 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 “<code>NULL, NULL</code>”, unless the - “<code>-q</code>” option is used, e.g., to show - “<code>-, @</code>” or “<code>@, - -</code>”.</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 “<code>2</code>” 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 - “<code>invalid</code>” 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 - “<code>^?</code>” 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 “<code>^?</code>” 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 - “<code>%{number}%+%c</code>” and - “<code>%'char'%+%c</code>” to check that the - final character is really “<code>c</code>”, - 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 “<code>^X</code>” or - “<code>\xxx</code>” 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 “<code>%d</code>” width to 2 - digits on input, and use “<code>%2</code>” in - preference to “<code>%02</code>” on output.</p> - </li> + <dl> + <dt><span class="part-name">clear</span> + </dt> - <li> - <p>correct terminfo/termcap conversion of - “<code>%02</code>” and - “<code>%03</code>” into - “<code>%2</code>” and - “<code>%3</code>”; 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 “<tt>OTxx</tt>” 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> </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 “<tt>pt</tt>” 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 “<tt>x</tt>” to <tt>getopt</tt> string + so that “<tt>tput -x clear</tt>” + 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 “<tt>.pc</tt>” 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 “<code>t</code>” 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 “<code>d</code>” 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 “<code>F</code>” 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 “<code>g</code>” 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 “<code>s</code>” test easier to - understand which subtests are available</p> - - <p>add a corresponding “<code>S</code>” - wide-character overlap test-screen.</p> + <p>add some checks in <em>tracemunch</em> for undefined + variables.</p> </li> <li> - <p>add “<code>v</code>” 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 + “<tt>CUR</tt>” 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 - “<code>-f</code>” 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 “<em>dots</em>” - 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"> - “<code>--keep-tite</code>” 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 - “<code>R</code>”, noting that Warnsdorf's method - is easily done with “<code>a</code>”.</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 “<code>-n</code>” 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 “<tt>-l</tt>” 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 “<tt>@</tt>” 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 “<code>-d</code>” 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 “<code>-direct</code>” - 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 “SGR 1006 mouse”) 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><curses.h></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—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 “<tt>use=</tt>” 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 + “<tt>use=</tt>” 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., + “RGB”). 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 “<tt>-c</tt>” (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 “AdaCurses” 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 “.pc” 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 “no” 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 - “model” 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 “<tt>install -p</tt>” when available, + to avoid need for ranlib of static libraries.</li> + + <li>scripts which use + “<tt>--disable-relink</tt>;” 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 - “<code>?</code>” 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 “inline” 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 “<code>-lstdc++</code>” 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 “newer” 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 "<bsd/string.h>" 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. Jürgen 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> .</p> + "https://invisible-mirror.net/archives/ncurses/current/">https://invisible-mirror.net/archives/ncurses/current/</a> .</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> .</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> .</p> + Richard Shuford's archive</a> . 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> |