X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ANNOUNCE;h=7b5f4efa69ae44ea29f14dc42e07bdc41dd5ca87;hp=5ef8f3c2f963c630fadb54c58d3fdbce3be2437e;hb=c633e5103a29a38532cf1925257b91cea33fd090;hpb=b1f61d9f3aa244512045a6b02e759825d7049d34 diff --git a/ANNOUNCE b/ANNOUNCE index 5ef8f3c2..7b5f4efa 100644 --- a/ANNOUNCE +++ b/ANNOUNCE @@ -1,5 +1,5 @@ - Announcing ncurses 5.1 + Announcing ncurses 5.2 The ncurses (new curses) library is a free software emulation of curses in System V Release 4.0, and more. It uses terminfo format, @@ -27,102 +27,224 @@ Release Notes - This release is designed to be upward compatible from ncurses 5.0; - very few applications will require recompilation, depending on the - platform. These are the highlights from the change-log since ncurses - 5.0 release. + This release is designed to be upward compatible from ncurses 5.0 and + 5.1; very few applications will require recompilation, depending on + the platform. These are the highlights from the change-log since + ncurses 5.1 release. Interface changes: - * made the extended terminal capabilities - (configure --enable-tcap-names) a standard feature (though the - configure script can disable it, it is built by default). - * removed the trace() function and related trace support from the - production library. This is the only interface change that may - cause problems with existing applications linked to shared - libraries, since not all platforms use the minor version number. - * explicitly initialized to zero several data items which were - implicitly initialized, e.g., cur_term. If not explicitly - initialized, their storage type is C (common), and causes problems - linking on some platforms. - * modified curses.h.in, undef'ing some symbols to avoid conflict - with C++ STL. - - New features: - * added a new extension, assume_default_colors() to provide better - control over the use of default colors. This is the principal - visible difference between ncurses 5.1 and preceding versions. The - new extension allows an application to specify what colors pair 0 - uses. - NOTE: Pair 0 defaults to white on black unless you have invoked - use_default_colors() or set it via assume_default_colors(). An - application that calls start_colors() without setting the - background color will consistently have a black background no - matter what color your terminal's background actually is. - * made several fixes to the terminfo-to-termcap conversion, and have - been using the generated termcaps without further hand-tuning. - This builds on the extension use_extended_names() by adding - "obsolete" termcap strings to terminfo.src - + modified tic so that if extended names (i.e., - configure --enable-tcap-names) are active, then tic -x will - also write "obsolete" capabilities that are present in the - terminfo source. - + added screen's AX capability (for ECMA SGR 39 and 49) to - applicable terminfo entries, use presence of this as a check - for a small improvement in setting default colors. - + add -a option to tic and infocmp, which retains commented-out - capabilities during source translation/comparison, e.g., - captoinfo and infotocap. - * implemented limited support for UTF-8, useful with XFree86 xterm: - + if the configure --enable-widec option is given, append 'w' - to names of the generated libraries (e.g., libncursesw.so) to - avoid conflict with existing ncurses libraries. - + add a simple UTF-8 output driver to the experimental - wide-character support. If any of the environment variables - LC_ALL, LC_CTYPE or LANG contain the string "UTF-8", this - driver will be used to translate the output to UTF-8. - + modified view.c to make a rudimentary viewer of UTF-8 text. - * modify raw() and noraw() to clear/restore IEXTEN flag which - affects stty lnext on systems such as FreeBSD - * reordered tests during mouse initialization to allow for gpm to - run in xterm, or for xterm to be used under OS/2 EMX. Also dropped - test for $DISPLAY in favor of the terminfo capability kmous=\E[M - or if $TERM environment variable contains "xterm". - * added configure option --with-manpage-symlinks, which provides for - fully indexing manpage entries by making symbolic links for the - aliases. - * changed unctrl() to render C1 characters (128-159) as ~@, ~A, etc. - * add experimental configure option --enable-colorfgbg to check for - $COLORTERM variable as set by rxvt/aterm/Eterm. - * made the infocmp -F option less verbose. - * dropped support for gnat 3.10 (gnat 3.12 is current). + * change type of ospeed variable back to short to match its use in + legacy applications. It was altered after ncurses 4.2 to speed_t + to repair a type mismatch which was introduced after 1.9.4 in + 1995. The principal users of termcap continued to use short, which + is not the same size. + NOTE: A few applications will have to be recompiled (about 1% of + the programs in a typical Linux distribution, 10% of the programs + that use ncurses). These are easy to identify with nm or strings. + * remove a private function _nc_can_clear_with(), which was built + with the configure --enable-expanded option but not used. + * add several private functions (prefixed with "_nc_") for tracing + chtype values in the debug library, and for better access and + buffer limit checking. + + New features and improvements: + * rewrote tgoto() to make it better support existing termcap + applications which use hardcoded strings rather than obtain all of + their information from the termcap file. If the string does not + appear to be a terminfo string (i.e., does not refer to a "%p" + parameter, or terminfo-style padding), and termcap support is + configured, tgoto() will interpret it as termcap. Otherwise, as + before, it will use tparm(). + * to ensure that the tgoto() changes work properly, added checks to + tic which report capabilities that do not reference the expected + number of parameters. + * new configure script options: + + option --disable-root-environ adds runtime checks which tell + ncurses to disregard $TERMINFO and similar environment + variables if the current user is root, or running + setuid/setgid. + + option --disable-assumed-color allows you to use the pre-5.1 + convention of default colors used for color-pair 0 to be + configured (see assume_default_colors()). + + implement configure script options that transform installed + program names, e.g., --program-prefix, including the manpage + names and cross references. + + option --with-database allows you to specify a different + terminfo source-file to install. On OS/2 EMX, the default is + misc/emx.src, otherwise misc/terminfo.src + + option --with-default-terminfo-dir allows you to specify the + default terminfo database directory. + + option --with-libtool allows you to build with libtool. + NOTE: libtool uses a different notation for numbering shared + library versions from the existing ncurses configuration. + + option --with-manpage-tbl causes the manpages to be + preprocessed by tbl(1) prior to installation, + + option --without-curses-h causes the installation process to + install curses.h as ncurses.h and make appropriate changes to + headers and manpages. + * modified configure script options: + + change symbol used by the --install-prefix configure option + from INSTALL_PREFIX to DESTDIR (the latter has become common + usage although the name is misleading). + + modify ld -rpath options (e.g., Linux, and Solaris) to use an + absolute pathname for the build tree's lib directory, + avoiding confusion with directories relative to the current + one with the installed programs. + + modified misc/run_tic.in to use tic -o, to eliminate + dependency on $TERMINFO variable for installs. + * terminfo database: + + updated xterm terminfo entries to match XFree86 xterm patch + #146. + + added amiga-vnc, Matrix Orbital, and QNX qansi to + misc/terminfo.src. + + added os2 entry to misc/emx.src. + + add S0 and E0 extensions to screen's terminfo entry since + otherwise the FreeBSD port makes it pass termcap equivalents + to tgoto, which would be misinterpreted by older versions of + ncurses. + * improvements to program usability: + + modify programs to use curses_version() string to report the + version of ncurses with which they are compiled rather than + the NCURSES_VERSION string. The function returns the patch + level in addition to the major and minor version numbers. + + modify tput program so it can be renamed or invoked via a + link as 'reset' or 'init', producing the same effect as + tput reset or tput init. + + add error checking to infocmp's -v and -m options to ensure + that the option value is indeed a number. + * improved performance: + + replace a lookup table in lib_vidattr.c used to decode + no_color_video with a logic expression which is faster. Major bug fixes: - * modified infocmp -e, -E options to ensure that generated - fallback.c type for Booleans agrees with term.h - * documented a special case of incompatiblity between ncurses 4.2 - and 5.0, added a section for this in INSTALL. - * corrected tests for file-descriptors in OS/2 EMX mouse support. A - negative value could be used by FD_SET, causing the select() call - to wait indefinitely. - * made 'tput flash' work properly for xterm by flushing output in - delay_output() when using napms(), and modifying xterm's terminfo - to specify no padding character. Otherwise, xterm's reported baud - rate could mislead ncurses into producing too few padding - characters. - * modified lib_addch.c to allow repeated update to the lower-right - corner, rather than displaying only the first character written - until the cursor is moved. Recent versions of SVr4 curses can - update the lower-right corner, and behave this way. - * modified echo() behavior of getch() to match Solaris curses for - carriage return and backspace (reported by Neil Zanella). - * corrected offsets used for subwindows in wresize() - * modified configure script so AC_MSG_ERROR is temporarily defined - to a warning in AC_PROG_CXX to make it recover from a missing C++ - compiler without requiring user to add --without-cxx option - * corrected logic in lib_twait.c as used by lib_mouse.c for GPM - mouse support when poll() is used rather than select(). - * made several fixes for buffer overflows, unchecked recursion, - improvements in performance, etc. See the NEWS file for details. + * correct manlinks.sed script introduced in ncurses 5.1 to avoid + using ERE "\+", which is not understood by standard versions of + sed. This happens to work with GNU sed, but is not portable, and + was the initial motivation for this release. + * remove "hpux10.*" case from CF_SHARED_OPTS configure script macro. + This differed from the "hpux*" case by using reversed symbolic + links, which made the 5.1 version not match the configuration of + 5.0 shared libraries. + * guard against corrupt terminfo data: + + modify tparm() to disallow arithmetic on strings, analyze the + varargs list to read strings as strings and numbers as + numbers. + + modify tparm()'s internal function spop() to treat a null + pointer as an empty string. + + modify parse_format() in lib_tparm.c to ignore precision if + it is longer than 10000. + + rewrote limit checks in lib_mvcur.c using new functions + _nc_safe_strcat(), etc. Made other related changes to check + lengths used for strcat() and strcpy(). + * corrections to screen optimization: + + added special case in lib_vidattr.c to reset underline and + standout for devices that have no sgr0 defined. + + change handling of non_dest_scroll_region in tty_update.c to + clear text after it is shifted in rather than before shifting + out. Also correct row computation. + + modify rs2 capability in xterm-r6 and similar entries where + cursor save/restore bracketed the sequence for resetting + video attributes. The cursor restore would undo that. + * UTF-8 support: + + when checking LC_ALL, LC_CTYPE, and LANG environment + variables for UTF-8 locale, ignore those which are set to an + empty value, as per SUSV2. + + encode 0xFFFD in UTF-8 with 3 bytes, not 2. + + modify _nc_utf8_outch() to avoid sign-extension when checking + for out-of-range value. + * other library fixes: + + added checks for an empty $HOME environment variable, to + avoid retrieving terminfo descriptions from ./.terminfo . + + change functions _nc_parse_entry() and postprocess_termcap() + to avoid using strtok(), because it is non-reentrant. + + initialize fds[] array to 0's in _nc_timed_wait(); apparently + poll() only sets the revents members of that array when there + is activity corresponding to the related file. + + add a check for null pointer in Make_Enum_Type(). + + fix a heap problem with the c++ binding. + + correct missing includes for in several places, + including the C++ binding. This is not noted by gcc unless we + use the -fno-builtin option. + * several fixes for tic: + + add a check for empty buffers returned by fgets() in + comp_scan.c next_char() function, in case tic is run on a + non-text file (fixes a core dump). + + modify tic to verify that its inputs are really files, in + case someone tries to read a directory (or /dev/zero). + + correct an uninitialized parameter to open_tempfile() in + tic.c which made "tic -I" give an ambiguous error message + about tmpnam. + + correct logic in adjust_cancels(), which did not check both + alternatives when reclassifying an extended name between + boolean, number and string, causing an infinite loop in tic. + * using new checks in tic for parameter counts in capability + strings, found/fixed several errors both in the terminfo database + and in the include/Caps file. + + modified several terminfo capability strings, including the + definitions for setaf, setab, in include/Caps to indicate + that the entries are parameterized. This information is used + to tell which strings are translated when converting to + termcap. This fixes a problem where the generated termcap + would contain a spurious "%p1" for the terminfo "%p1%d". + + correct parameter counts in include/Caps for dclk as well as + some printer-specific capabilities: csnm, defc, scs, scsd, + smgtp, smglp. + * various fixes for install scripts used to support configure + --srcdir and --with-install-prefix. + * correct several mismatches between manpage filename and ".TH" + directives, renaming dft_fgbg.3x to default_colors.3x and + menu_attribs.3x to menu_attributes.3x. + + Portability: + * configure script: + + newer config.guess, config.sub, including changes to support + OS/2 EMX. The configure script for OS/2 EMX still relies on a + patch since there is no (working) support for that platform + in the main autoconf distribution. + + make configure script checks on variables $GCC and $GXX + consistently compare against 'yes' rather than test if they + are nonnull, since either may be set to the corresponding + name of the C or C++ compiler. + + change configure script to use AC_CANONICAL_SYSTEM rather + than AC_CANONICAL_HOST, which means that configure --target + will set a default program-prefix. + + modify the check for big-core to force a couple of memory + accesses, which may work as needed for older/less-capable + machines (if not, there's still the explicit configure + option). + + modify configure test for tcgetattr() to allow for old + implementations, e.g., on BeOS, which only defined it as a + macro. + + add configure check for filesystems (such as OS/2 EMX) which + do not distinguish between upper/lowercase filenames, use + this to fix tags rules in makefiles. + + add MKncurses_def.sh to generate fallback definitions for + ncurses_cfg.h, to quiet gcc -Wundef warnings, modified + ifdef's in code to consistently use "#if" rather than + "#ifdef". + + change most remaining unquoted parameters of test in + configure script to use quotes, for instance fixing a problem + in the --disable-database option. + + modify scripts so that "make install.data" works on OS/2 EMX. + + modify scripts and makefiles so the Ada95 directory builds on + OS/2 EMX. + * library: + + replaced case-statement in _nc_tracebits() for CSIZE with a + table to simplify working around implementations that define + random combinations of the related macros to zero. + + improved OS/2 mouse support by retrying as a 2-button mouse + if code fails to set up a 3-button mouse. + + added private entrypoint _nc_basename(), used to consolidate + related code in progs, as well as accommodating OS/2 EMX + pathnames. + + alter definition of NCURSES_CONST to make it non-empty. + + redefine 'TEXT' in menu.h for AMIGA, since it is reported to + have an (unspecified) symbol conflict. + * programs: + + modified progs/tset.c and tack/sysdep.c to build with sgttyb + interface if neither termio or termios is available. Tested + this with FreeBSD 2.1.5 (which does have termios - but the + sgttyb does work). Features of Ncurses @@ -344,7 +466,7 @@ References 5. http://dickey.his.com/ded/ded.html 6. http://dickey.his.com/dialog/dialog.html 7. http://lynx.isc.org/release/ - 8. file://localhost/usr/build/ncurses/ncurses-5.1-20000704/doc/html/www.gnome.org/mc/ + 8. file://localhost/usr/build/ncurses/ncurses-5.2-20001021/doc/html/www.gnome.org/mc/ 9. http://www.mutt.org/ 10. http://www.ncftp.com/ 11. http://www.bostic.com/vi/