########################################################################## # This program is Copyright (C) 1986-2002 by Jonathan Payne. JOVE is # # provided by Jonathan and Jovehacks without charge and without # # warranty. You may copy, modify, and/or distribute JOVE, provided that # # this notice is included in all the source files and documentation. # ########################################################################## [Updated in 2023 Nov] JOVE on UNIX/Linux/MacOS X/*BSD/CygWin Systems ---------------------------------------------- Getting JOVE ------------ JOVE releases are available at http://github.com/jonmacs/jove/ in various source (github's automatically packed tar.gz, or a manually packed .tgz which are essentialy identical, as well as a manually packed .zip or .exe for MS-DOS), and some binary forms for various OS architectures (Linux, DOS, Windows). All distributions include formatted manuals (PDF, text) -- in the doc/ subdirectory for source and some binary, or in share/doc/jove, share/jove or man/man1 (relative to a top-level installation directory, such as /usr or /usr/local) For information about other systems, see the other README files in the source, zip or exe distributions: README.dos for MS-DOS README.win for MS Win32 Quick Summary of Installation ----------------------------- Unpack the tar file somewhere convenient and cd into it: tar xzf jove-VERSION.tgz cd jove-VERSION For old Unix, gunzip this the file on a modern platform, them copy the tar over and use tar xf jove-VERSION.tgz Ensure you have the tools required to build Jove. You need a C compiler (classic Unix cc, gcc or clang should work), the make utility, and basic headers for libc, which may require extra packages on some Linux distributions. Debian, Ubuntu, Mint: apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends gcc make ncurses-dev pkg-config exuberant-ctags Alpine: apk update && apk add gcc make musl-dev ncurses-dev pkgconfig ctags MacOSX/Darwin: brew install make ncurses Nix: nix-shell -p gnumake Arch: pacman -Sy gcc make # pkgconf ncurses Gentoo: # comes with gcc and make and headers by default! For many modern systems (Linux, various BSDs, MacOSX/Darwin, Solaris, OpenIndiana), an auxiliary script called jmake.sh is provided that auto-detects what the SYSDEFS and EXTRALIBS should be, and then invokes 'make' without any manual configuration needed: just specify JOVEHOME to change where you want jove installed (default JOVEHOME is /usr/local, which puts the binaries in $JOVEHOME/bin, manuals in $JOVEHOME/man/man1, other documents and help and config in $JOVEHOME/share/jove, helper programs in $JOVEHOME/lib/jove e.g. to put jove in /opt/jove/{bin,share,...} ./jmake.sh JOVEHOME=/opt/jove # to build ./jmake.sh JOVEHOME=/opt/jove install # to install To build a relocatable version of Jove (i.e. an install directory that can be copied or moved freely to other paths) in /foo ./jmake.sh DESTDIR=/foo/ JOVEHOME= JBINDIR= JSHAREDIR=doc JLIBDIR= clean install If jmake.sh does not work, please do file a bug, indicating your system. One can also pass SYSDEFS, TERMCAPLIB and EXTRALIBS (and other variables in the Makefile) by hand. modern (Net|Open|Free)BSD/Darwin/Mac OS X: use the first of the following that works: make install make SYSDEFS=-DXBSD install make SYSDEFS="-DBSDPOSIX_STDC -DUSE_OPENPTY -DHAS_LIBUTILS_H" LDLIBS=-lutil install make SYSDEFS="-DBSDPOSIX_STDC" install make SYSDEFS="-DBSDPOSIX" install classic BSD4.[0123]: make SYDEFS=-DBSD4 JTMPDIR=/usr/tmp JRECDIR=/usr/preserve MKDIRP=mkdir LDLIBS=-ltermcap install Linux: Using RPM (if sufficiently close to Red Hat; make sure RPMHOME is correct in the Makefile, that you have the rpm-build package, a compiler and and use: make rpm and them install the resulting rpm from $HOME/rpmbuild/RPMS with "rpm -i" To compile and install from source, set JOVEHOME appropriately. By default, Jove has internal support for ansi/vt[1234]xx terminals that are emulated by every modern desktop environment (i.e xterm, rxvt, st, vte, konsole, {gnome,mate}-terminal, ...), so unless you have some very special terminal, you should not need a general purpose terminal handling library like termcap or curses. But if you need one, the packages go by different names on various Linux. If you install pkgconf (for the pkg-config program) and the ncurses (which sometimes goes by names like ncursesw, ncurses-base, ncurses-dev, ncurses-devel, libncurses-dev, libtinfo-dev, sys-libs), that should be enough on most Linux systems. Otherwise, you can explicitly ask for it is using something like make SYSDEFS=-D`uname` LDLIBS=-lncursesw If you link with one of the general terminal handling libraries rather than using Jove's builtin handling, then you will also need to ensure you have terminal descriptions, which are sometimes in separate packages (e.g. called ncurses-terminfo-base or ncurses-base or ncurses-term) Older Linux may need either SYSDEFS=-DXLINUX or SYSDEFS=-DBSDPOSIX_STDC (but do test how interactive-shell works once built; the main issues are pty-handling, even if they seem to compile without error) Solaris 5.1 or newer: make install Other systems: Read comments about SYSDEFS settings below, check sysdep.h for recently tested system settings or old/sysdep.h for once-working but currently untested settings that will need to be copied into sysdep.h, or just set on the command-line with SYSDEFS="-D...", LDLIBS if needed. Cross-Compiling: If your cross-compiler for some target FOO is FOO-gcc, then you can probably cross-compile with env JMAKE_UNAME=FOO-gcc ./jmake.sh e.g. env JMAKE_UNAME=i686-w64-mingw32 ./jmake.sh or env JMAKE_UNAME=i486-linux-musl ./jmake.sh More generally, the Jove Makefile has some support for cross-compiling. You need to set CC to the cross-compiler, but please do not override CFLAGS, which consists of SYSDEFS, (for any -I or -D cross-compiler options) and OPTFLAGS (for any optimizer flags or special cross-compiler options e.g. target arch). For linking, you can set LDFLAGS (e.g. -L) or LDLIBS for the cross-linker for the target system, while you can set LOCALCC, LOCALCFLAGS, LOCALLDFLAGS, LOCALEXTRALIBS and LOCALEXT for the local host machine compiler and linker (usually none other than LOCALCC are needed, since they are used when locally building the setmaps program on the host, which is run to generate keys.c, which will then be cross-compiled for the target) e.g. make CC=/cross/bin/cc-armv7 SYSDEFS="-DLinux -DJTC" OPTFLAGS=-O2 LDFLAGS="-L/cross/lib" LDLIBS="-lutil" LOCALCC=cc For another example, see README.win for cross-compiling using MinGW for a Windows target. Please help us keep up with new systems. If your system isn't covered in jmake.sh or on in the SYSDEFS section of Makefile, tell us what works. If your system is covered, but the documented procedure doesn't work, tell us by filing a bug on http://github.com/jonmacs/jove Full Story of Installation -------------------------- JOVE does not use any automatic configuring mechanism other than the very simple jmake.sh script, which only works on modern Linux/*BSD/MacOSX/Darwin/Solaris. System-specific configuring is done by defining specific symbols from sysdep.h in SYSDEFS in the Makefile (in most situations it is handier to override definitions by supplying them on the make command line rather than the classic technique of editing the Makefile). JOVE has been around for a *long* time, and a lot of care has been taken to make it work on many systems, new and old. For current systems, less configuring is require -- hurray for standards! Makefile specifies paths for installing JOVE components (JOVEHOME, JSHAREDIR, JLIBDIR, JBINDIR, JMANDIR, MANEXT), tempfiles (JTMPDIR, JRECDIR), and the default shell (DFLTSHELL). Although the defaults are reasonable, you may wish to change them. For many systems, you will need to change the definition of SYSDEFS. to the symbol that identifies your system's characteristics, using the notation for a macro-setting flag to the C compiler. For modern systems, that symbol is often the output of the uname command. For example, on a machine running NetBSD, use "SYSDEFS=-DNetBSD". The Makefile describes suitable settings of SYSDEFS for many configurations. If yours isn't mentioned, use "grep System: sysdep.h" to find all currently supported system configurations. If there is no canned configuration for your system, you will have to define a new symbol and edit sysdep.h suitably. See "sysdep.txt" for the possible set of system-dependent aspects that you can select/tune. On some systems, you may need to change the flags passed to the compiler (SYSDEFS, OPTFLAGS) or the linker (LDFLAGS, LDLIBS). [These supersede the older Jove-specific conventions of defining OPTFLAGS, SYSDEFS, TERMCAPLIB, EXTRALIBS, which should still work] Systems on which 4.17 was tested include the following (and their SYSDEFS and LDLIBS will usually be correctly set by the jmake.sh script that can be used to to invoke make with auto-guessed values) The following explicit settings also work and may provide a guide to customization. # Cygwin 3.1.2 SYSDEFS=-DCYGWIN LDLIBS= # builtin vt100/xterm/rxvt etc support, no need for curses dependency # Darwin aka MacOS X onwards SYSDEFS=-DDarwin LDLIBS=-ltermcap # FreeBSD 12.1 SYSDEFS=-DFreeBSD LDLIBS="-ltermcap -lutil" # Linux (modern, glibc pty.h) SYSDEFS=-DLinux LDLIBS="-lncursesw -lutil" # Linux (recent, UNIX98 PTYS) SYSDEFS=-DXLINUX LDLIBS=-lncursesw # Linux (old, BSD PTYS) SYSDEFS=-DBSDPOSIX_STDC LDLIBS=-lncurses # NetBSD 8.1 SYSDEFS=-DNetBSD LDLIBS="-ltermcap -lutil" # OpenBSD 6.6 SYSDEFS=-DOpenBSD LDLIBS="-ltermcap -lutil" # SunOS5.1 onwards (Solaris/OpenIndiana/Illumos/Joyent) SYSDEFS=-DSunOS LDLIBS=-ltermcap # Debian Hurd 0.9 SYSDEFS="-DGNU -DJTC" LDLIBS=-lutil # LDLIBS="-lncursesw -lutil" might work, did not try Next you may edit "tune.h" to select the compile time features you care about. See "tune.txt" for a description of all the compile time options. The default options are quite reasonable so, in most cases, you should leave them alone. If you are really short on space, or are porting JOVE to a new system, you may want to define -DBAREBONES in SYSDEFS to avoid some of the less-portable features of JOVE initially. You can type "make" to compile "jjove", "portsrv" (this is compiled on every system, but is only used if JOVE is compiled with the PIPEPROCS feature selection, typically on UNIX systems without pseudo ttys), "recover" and "teachjove". Test jjove to see if it works (remember that it won't be able to access its subsidiary files until they are installed, so you will need to call it with "./jjove -l . -s doc ..." -- assuming you are in the main JOVE directory). If it works, type "make install" to install everything where it belongs. Here are some things to consider when choosing a definition for JTMPDIR, the directory where JOVE puts temporary files. The obvious place is /tmp, but many systems delete all files in /tmp when they are rebooting. If you hope to recover buffers from a system crash, TMPDIR lets you specify a safer place. If your system does not remove subdirectories of /tmp on reboot (lots do remove them these days) then it makes sense to make TMPDIR be /tmp/jove; otherwise, /var/tmp may be better. But if you use /tmp and want to recover buffers on system crashes, you should put the lines: (echo preserving JOVE files) >/dev/console (cd /tmp; /usr/local/lib/jovelib/recover -syscrash) >/dev/console in the /etc/rc file BEFORE /tmp is cleared, so that you can recover files after reboots (hint: look for the equivalent code to preserve vi tempfiles). You should then create a crontab entry to clear out old files in /usr/preserve. If you plan on using JOVE with a xterm, look at doc/XTermresource. This file contains resource declarations that allow JOVE to respond to more function keys and mouse gestures. For RPM-based Linux, jspec.in specifies how an RPM should be created. On most modern Red Hat Linux (Fedora, CentOS, etc), "make rpm" will build source and binary RPMs -- rpm looks inside the .tgz to find jove.spec. (Need to 'yum install rpm-build groff' or similar first) It is possible to build a widely portable Linux binary using static compilation, perhaps using the musl library to keep size small. E.g., using the small Alpine Linux docker image, with srcdir set to a directory with the unpacked Jove source code, one can use: docker pull alpine docker run -v $srcdir:/src --rm -it alpine apk add gcc musl-dev make cd /src make 'CC=gcc --static' The resulting jjove can be run standalone pretty-much anywhere, though the doc/jove.rc file might also be useful. Some features. -------------- "doc/jove.rc" and "doc/example.rc" are JOVE initialization files. "jove.rc" is the recommended "system" rc file (until you are ready to roll your own, that is). It gets read every time JOVE starts up FOR EVERYONE ("make install" should copy it to the right place automatically). After that JOVE reads the initialization file .joverc in the user's home directory. "example.rc" is taken from a personal .joverc. The files intro.nr and cmds.nr in the doc directory are the official JOVE manual. Jonathan got permission from Richard Stallman to use his manual for the original EMACS, modifying it where necessary for JOVE. Lots of work was done by Brian Harvey on this manual. When formatted, these are usually in some system doc directory, typically /usr/share/doc/jove/ or /usr/local/share/doc/jove, as a PDF and a text form. There is also a quick-reference card with most JOVE key-bindings, commands and variables, best printed in landscape mode. There are Unix-style manual pages for jove and teachjove. Teachjove is an interactive tutorial for people who have never used EMACS style editors -- it can be started from within JOVE as the "teach-jove" command, usually bound to ESC t or historically, using the special Unix command "teachjove". It is THE tutorial written by Stallman for the original EMACS, only slightly modified for JOVE in the appropriate places. The manual pages are hopefully up to date. Optionally, if you want to use Jove to work with C source code, and know/like tags, you will need ctags or etags on your system so that you can generate tags files to use with jove -t or Jove's find-tag command (bound to the keys "^X t"). If you use Jove to work with text documents, and use the built-in spell-check support (i.e. Jove's spell-buffer command), you will need to install spell-checker program (spell on classic Unix, aspell on Linux/BSD). Optionally, if you want to modify, rebuild or reformat the documents, you will need a troff-style formatter (the package called groff on modern Linux/*BSD. You will also need the "ms" macros, should be included with most modern groff, though not in the scaled-down groff-base packages) Optionally, if you want to use 'make zip' to build a source archive suited to DOS/Windows, you will need the zip program (generally, a package called zip on most Linux/*BSD) Older, once-working systems ---------------------------- For the pdp11 version there was once the Ovmakefile, which had only been tested on 2.9bsd once upon a very long ago. It supposedly worked. and it was possible to turn on all the compile time options with that version. Maybe someone will try a PDP-11 emulator one day with 2.11BSD and report back?! The following used to work circa Jove 4.16 in the 1990s and have probably not been tested in the 21st century, so their definitions were deleted from sysdep.h, copies are still in old/sysdep.h. They may still build but some of this ancient support may be deleted from Jove at some point, we welcome any recent success stories from jove builders/packagers to refresh or maintain these. Pretty please! (e.g. a 2023 test with simh emulating a vax running 4.3BSD produced the fixes in 4.17.5.4) Most need LDLIBS=-ltermcap, but if you get link errors for tputs or tparm, try LDLIBS=-lcurses # Apple A/UX on macIIs SYSDEFS=-DA_UX # BSD4.1 SYSDEFS=-DBSD4 LDLIBS="-ljobs -ltermcap" # BSDI, 386BSD, BSD4.4 SYSDEFS=-DBSDPOSIX # Consensys V4 SYSDEFS="-DSYSVR4 -DGRANTPT_BUG" # Compaq Tru64 UNIX V4.0g, 5.1 SYSDEFS=-DSYSVR4 # DEC OSF R1.3MK SYSDEFS=-DSYSVR4 # DEC OSF/1 V1.3 SYSDEFS="-DBSDPOSIX -DNO_TIOCREMOTE -DNO_TIOCSIGNAL" # DEC OSF/1 V2.0 and later SYSDEFS=-DSYSVR4 # DEC Ultrix 4.2 SYSDEFS=-DBSDPOSIX # DEC Ultrix 4.3 SYSDEFS="-DBSDPOSIX -DJVDISABLE=255" # Digital UNIX V4.0 and later SYSDEFS="-DSYSVR4 -DGRANTPT_BUG" # DG AViiON 5.3R4 SYSDEFS="-DSYSVR4 -DBSD_SIGS" # HP/UX 8 or 9 SYSDEFS="-DHPUX -Ac" # HP/UX 11 (-Ac redundant) SYSDEFS=-DHPUX # IBM AIX 3.2 SYSDEFS=-DAIX3_2 # IBM AIX 4.2, 5.2 SYSDEFS="-DAIX4_2" LDLIBS="-lcurses -ltermcap -ls" # Irix 3.3-4.0.5 SYSDEFS="-DIRIX -DIRIX4" # Irix 5.0 onwards SYSDEFS="-DIRIX -prototypes" # Linux (ancient e.g. RedHat 4,5) SYSDEFS=-DBSDPOSIX # MIPS RiscOS4.x SYSDEFS="-systype bsd43 -DBSD4" # SCO Unix SYSDEFS=-DSCO LDLIBS=-lcurses # SunOS3.x SYSDEFS=-DSUNOS3 # SunOS4.0* SYSDEFS=-DSUNOS40 # SunOS4.1* SYSDEFS=-DSUNOS41 # SunOS5.0 (Solaris 2.0) SYSDEFS="-DSYSVR4 -DGRANTPT_BUG" # Sys III, Sys V R 2,3 SYSDEFS=-DSYSV PORTSRVINST='$(PORTSRV)' LDLIBS=-lcurses # Sys V Release 4.0 SYSDEFS="-DSYSVR4 -DGRANTPT_BUG" LDLIBS=-lcurses # Sys V Release 4.x SYSDEFS=-DSYSVR4 LDLIBS=-lcurses # Some systems based on System V release 4 have a bug affecting interactive processes. This bug can be worked around by defining GRANTPT_BUG. Read the explanation of GRANTPT_BUG in sysdep.txt. Notes for invoking make: # For SYSVR4 (/usr/ucb/cc will NOT work because of setjmp.h): # CC = /usr/bin/cc # To use the SunPro compiler under SunOS 4.n: # CC = acc # To use the official Sun compiler under Solaris 2.n: # CC = /opt/SUNWspro/bin/cc # For DG AViiON, expect compile errors unless you use the GNU C compiler: # CC=gcc LDCC is the load invocation of CC which can be changed to invoke link-time tools e.g. to use Purify(TM), try: LDCC = purify $(CC) Systems that used to need LDFLAGS # SysV Rel. 2: LDFLAGS = -Ml # SCO Xenix: LDFLAGS = -Ml -F 3000 # AIX Unix: LDFLAGS = -bloadmap:$@.map # only if loadmap # # To optimize the use of the address spaces, add to the LDFLAGS: # PDP-11 with separate I&D: -i # PDP-11 without separate I&D: -n For SCO Xenix, this might need to be set # LOCALCFLAGS = -Mle # OPTFLAGS = -LARGE -O -F 3000 -K -Mle (say -Mle2 for an 80286) For compiler OPTFLAGS set in the Makefile: # On the official Sun ANSI C compiler and the standard System V Release 4 # compiler, adding -Xa -v will increase compiler checking. # On DEC OSF/1 and Digital UNIX VV4.0, add -std1 to enable ANSI C features # and perhaps -g3 for more debugging info with optimization. # Some old versions of the HPUX C compiler have a bug in handling forward # struct tag declarations. Using the -Ac flag in place of -Ae will avoid # this problem (and reduce the compiler's error checking, unfortunately). # For install on 4BSD, SunOS #XINSTALL=/usr/ucb/install $(INSTALLFLAGS) -c -m 755 # -s #TINSTALL=/usr/ucb/install $(INSTALLFLAGS) -c -m 644 # newer Solaris 2.x aka SunOS 5.x #XINSTALL=/usr/gnu/bin/install $(INSTALLFLAGS) -m 755 #TINSTALL=/usr/gnu/bin/install $(INSTALLFLAGS) -m 444 # SysV-derivatives, or non-BSD Unix (V7, etc) #XINSTALL=cp #TINSTALL=cp Some acknowledgments. --------------------- Thanks to Jay (hack) Fenlason for writing the original pty code. Thanks to Dave Curry at Purdue for putting in tons of time and effort into getting JOVE ready. It just wouldn't be working without his help. Thanks to Jeff Mc Carrell at Berkeley for finding bugs and adding features, in particular, the comment formatter. Thanks to Karl Gegenfurtner for making the PC version. Thanks to Ken Mitchum for the Macintosh version. Thanks to Hugh Redelmeier for his input, his experience, countless bug fixes, and ... that's it, I guess. Thanks to Arlindo da Silva and Dave Curry for the original Cygwin ports. Thanks to Ken Mitchum for the original Mac port. (Thanks to Brian Harvey for teaching me about linked lists ...) Good luck, have fun. Jonathan Payne (once jpayne@starwave.com, sun.com, marimba.com :-) Thanks to Charles Lindsey for the xjove/jovetool and xterm mouse support. Thanks to Jim Patterson for the Win 32 port. Thanks to the other JoveHacks for testing and for contributing numerous fixes, portability enhancements, and pieces of sage advice. D. Hugh Redelmeier Thanks to Cord Beermann for Debian packaging, Peter Cock for conda packaging, Paul Vixie for FreeBSD packaging and many fixes. Mark Moraes Changes in 4.17.* ----------------- - github - Portability fixes, mainly removal of overlapping strcpy for Linux, *BSD, Darwin/MacOS, but also Windows and MinGW fixes, FreeDOS (!), OpenIndiana. 4.3BSD tested again! - Much build cleanup/revamp. Remove some ancient systems from sysdep.h since there seems no hope of testing them. - Use aspell if available on Linux - Handle terminals wider than 256 chars! - Handle line-numbering correctly if >1M lines! - Default line length max to 32K now - Fast/simple code to directly handle 99.9% of all currently used terminals (vt100+ derivatives) without needing termcap/terminfo/curses. - Do not allow writeback of files if lines were too long, and thus truncated, do not conflate shell output windows with files of the same name. - Horizontal scroll of the minibuffer. Changes in 4.16.* ------------------ - Portability fixes. Most important: work around a never-to-be-fixed bug in ncurses (the freely redistributable termcap/terminfo database). - Various minor bug fixes. Highlights: + use mkstemp to avoid a security loophole + avoid bad interaction between metakey and xterm mouse support in windows wider than 95 characters + handle symlinks better + obscure bug in text justification that could hang JOVE + misuse of stat that only misbehaved on LINUX Changes since 4.16beta ---------------------- - Added the variable paragraph-delimiter-pattern to customize paragraph recognition. - Ported to Win 32 (but not Win 32s) - Several variables have been renamed to more clearly indicate their function. The old name will still work, but eventually it will be eliminated. allow-bad-filenames => allow-bad-characters-in-filenames display-bad-filenames => display-filenames-with-bad-extensions internal-tabstop => tab-width - Several minor bugs fixed. Several portability improvements. + MSDOS: avoid date rollover problem + Borland C: support version 4 + Borland and Microsoft C: enable HIGHLIGHTING + NetBSD: dodge ssize_t redefinition + SCO UNIX: use <ctype.h> + SunOS + Solaris: make charp effective + generic: Ensure screen is maintained during non-interactive processes, even if the user has typed ahead - The xterm mousing interface has been completely revamped. Some small ancillary consequences of this are + A next-line (prev-line) landing in the middle of a Tab selects the Tab character (rather than the following one) + A yank-pop is no longer permitted to follow a copy-region. Changes since version 4.14.6. ----------------------------- JOVE now works on many newer systems. For example, it compiles under Solaris 2.n (SYSDEFS=-DSYSVR4). The uninstalled binary in the JOVE directory is jjove instead of xjove (xjove is now something else). The new command line flag -J inhibits the reading of the global jove.rc file. Similarly, -j inhibits ~/.joverc. JOVE's auxiliary files are kept in two directories (actually, they can be the same directory). The sharedir holds the system jove.rc and cmds.txt, the data used to implement the describe-command and describe-variable commands; these files are meant to be machine-independent. The libdir holds portsrv and recover; these are compiled programs, and are machine-dependent. There are three ways JOVE uses to determine each of the directories, two of them new. If JOVE was invoked with -l dirname, dirname is taken as the LibDir; otherwise, if the environment contains JOVELIB, its value is taken as the LibDir; otherwise, the value of the make variable $(LIBDIR) when JOVE was compiled is used as LibDir. Similarly, -s dirname, JOVESHARE, and $(SHAREDIR) specify ShareDir. As a shortcut, -ls dirname specifies both directories. Now, a good way to test an uninstalled version of JOVE is to say, within the JOVE directory, jjove -s doc -l . other_parameters A new command "pushlibd" effectively does a pushd command with ShareDir as the operand. This is for use within startup files such as jove.rc. The global startup file is now in doc/jove.rc (was doc/system.rc), so the -s flag can find it as above. It contains lots of goodies (you might not want all of them), including an ability to call up additional TERMinal specific startup files depending on the $TERM environment variable. Among other things, these provide support for the many wacky keys that terminal makers provide. See doc/README. The old make-keymap and bind-keymap-to-key commands are no longer needed. Instead, bind-to-key can accept character strings of any length (they had better not be a prefix of any other binding). This enables, among other things, binding commands to the function keys on Sun keyboards. Buffer- specific bindings are now supported (local-bind-* commands). All system dependencies are now gathered together in the file sysdep.h, to make it easier to select the bits of code which should or should not be included for various flavors of UNIX. The position of the mark is now indicated by underlining it (the position of point is, of course, indicated by the cursor, so the extent of the region is now easily seen). The bad news is that, although this works well on terminals, underlining is broken in some environments (notably SunView and the versions of OpenWindows with SUNOS4.1.x and Solaris 2.0 -- Solaris 2.1+ is OK). For the broken OpenWindows versions, you can include the following in your .Xdefaults file term.boldStyle: Offset_X_and_Y term.underlineStyle: Same_as_Bold The stock X11 terminfo entry for xterm was broken until X11R6 in a way that will cause the screen to be scrambled when JOVE tries to use underlining. The following fixes to the entry solve this problem and more: replace "blink=@," with "blink@," replace "rs2=@" with "rs2@," [note the added comma!] add "kf1=\EOP," [if not already be present] delete "smul@," and "rmul@," [if present] add "smul=\E[4m, rmul=\E[m," [xterm does support underlining] The portion of the buffer visible in the window is now indicated by "uninverting" a part of the modeline in proportion. This feature is really intended for use with "xjove" (described next), and there is a variable "scroll-bar" to enable it. xjove is a complete front-end for JOVE which will be found in the directory xjove (see the README there). It enables setting of point and mark with the mouse, cutting and pasting of text via the region, and scrolling by pointing into the modeline. It is written using the XView library (supplied with Suns, or with the X-distribution from MIT); there is also a version for Sunview known as jovetool. See its man entry in doc/xjove.nr. An alternative way of using the mouse is provided in the form of commands designed to recognize the mouse events coded by Xterm. These facilities are not nearly as extensive or convenient as those provided via xjove or jovetool. Within SHELL windows, the TERM environment variable is now set to "dumb", mainly to discourage running programs which might have depended on something else. Some shells (tcsh, for example) might prefer the emacs terminal type; JOVE also sets the INSIDE_JOVE variable, which can be used to set things up for shells, as well as the proc-env-export, and proc-env-unset commands for subshells and corresponding iproc-env-export and iproc-env-unset commands for interactive processes. By default, commands requiring a "y" or "n" response require a Return as well. When variable "one-key-confirmation" is set "on", a single character "y" or "n" is expected. Some features have been removed. Marks always float, so the variable "marks-should-float" is gone. The IBMPC-specific commands scroll-*-page are gone. JOVE is now 8-bit clean (the old behavior can be retained by setting NCHARS to 128 in sysdep.h, but no known system requires this setting). In operating systems with the necessary support (USE_CTYPE set in sysdep.h) it is possible to set the environment variable LC_CTYPE (or the JOVE variable lc-ctype) to a "locale" such as "iso_8859_1", whereupon characters with the 8th bit set sent from the keyboard (using the Alt Graph key, or the Compose key, or the Meta key, or whatever the particular hardware provides) will be displayed correctly, and will be treated as upper/lower case, etc in the correct manner. The default locale is "C", which reverts to 7-bit ASCII with the top 128 characters being displayed in octal. The format of the "jrec" file (now "jr*" ) has changed. This means that previous versions of recover cannot deal with the files left by crashes of the new JOVE, and vice versa. 4.17+ recover will realize this. Here is a list of reasons why your .joverc might no longer work. JOVE places diagnostics about the user and system .joverc files in the buffer "RC errors". - JOVE no longer ignores extra stuff on the end of binding commands. - All keymap creation is implicit. You no longer can or need to create new keymaps explicitly. - auto-execute-command no longer magically supplies a numeric argument for its command. If the command is intended to set a mode, you should supply the argument. If you don't set the numeric argument, the mode will be flipped. Here is an example from the system jove.rc: 1 auto-execute-command c-mode .*\.[chy]$ - Within regular expressions, alternatives are separated by "\|". Previously, alternatives within braces were separated by ",". For example, "/tmp/\{Re,article,rnmail,pn\}" must be changed to "/tmp/\{Re\|article\|rnmail\|pn\}". - auto-execute-command and auto-execute-macro both require explicit patterns. Previously, the pattern would default to match every filename. - Certain commands and variables have been eliminated or renamed: bind-keymap-to-key, make-keymap, process-bind-keymap-to-key -- no longer needed unbind-key -- bind the "unbound" command instead marks-should-float -- they always do now physical-tabstop -- now picked up from termcap scroll-next-page, scroll-previous-page -- IBM PC only, and useless background-color => background-attribute -- IBM PC only foreground-color => foreground-attribute mode-line-color => mode-line-attribute - On the IBM PC, the Delete key now generates the ASCII DEL character; Control-@ and Control-Space now generate the ASCII NUL character. Known problems -------------- In an interactive process buffer, JOVE sometimes fails to receive an end-of-file through the pseudo-tty, reporting "[Process i-shell: Exited 0; not EOFed]" rather than "[Process i-shell: Done]". In this case, the process window will not be considered done, even though the child and all its ancestors are dead. The only consequences are that the status display continues to report that the process is not done and that another process may not be started up in that buffer. This only happens on certain systems, not sure why. For example, this worked fine upto Debian 9, and broke in Debian 10 (using SYSVR4 ptys), and is fixed by switching to GLIBCPTY. e.g. #6 If a window-find command is issued while the current window's lines are numbered, the numbering may become wrong temporarily. We are working on this bug. JOVE can not handle lines longer than JBUFSIZ characters (usually 4096, but 512 on some small systems). Eliminating this limit is not easy. JBUFSIZ is 2^LG_JBUFSIZ, which can be raised; JOVE keeps NBUF such buffers in memory and reads/writes these from/to a temporary file, and lines may not exceed a buffer, so making LG_JBUFSIZ larger increases the max line length. However, it increases memory consumption, though that only matters on machines in the sub-megabyte range. JOVE can not handle NUL characters in the buffer. In most cases, they are discarded silently, another dubious feature. JOVE does not handle Unicode (aka UTF-8), it silently ignores LANG, locale etc. Fixing this limitation is not easy. Bug Reports and Maintenance. ---------------------------- Jonathan Payne no longer works on JOVE. A group of JOVE maintainers supports the github.com/jonmacs/jove releases and welcomes: - help or success reports or issues with porting for additional systems - bug reports (we may already have an explanation or fix) - suggestions for and implementations of improvements or additional features (we do try to keep JOVE small) See https://github.com/jonmacs/jove for JOVE updates. A mailing list for discussions and mutual help amongst JOVE users exists at jove-users _at_ freelists _DOT_ org