File:  [local] / rpl / ChangeLog
Revision 1.12: download - view: text, annotated - select for diffs - revision graph
Sat Mar 6 18:29:04 2010 UTC (14 years ago) by bertrand
Branches: MAIN
CVS tags: HEAD
Tous les noms de fichiers sont maintenant en UTF-8. Le contenu
des fichiers formatés est converti en UTF-8. Ces modifications sont
faites pour avoir un fonctionnement cohérent avec la bibliothèque sqlite.

    1: * Thu Mar 03 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.12 (RPL/2)
    2: - all formatted files are now converted into UTF-8;
    3: - all file and unix socket names created by RPL/2 are now UTF8 compliant;
    4: - RPL/2 tools (rpliconv, rplfile, rplpp and rplconvert) are now checked before
    5: each execution (md5 and sha1 sums) to enhance security. If one of these tools
    6: have been modified between RPL/2 compilation and current execution, RPL/2 aborts
    7: on a non recoverable system error;
    8: - openssl and sqlite3 libraries are added;
    9: - RPL_HOME env variable is added. When RPL/2 is called from librpl, this
   10: variable indicates RPL/2 root directory. If it is not set, root path
   11: is given by configure script (d_exec_path);
   12: * Thu Mar 03 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.11 (RPL/2)
   13: - configure.in and makefile.am's are modified to add Cygwin support. Interix
   14: support is broken;
   15: - memory leak is fixed in recherche_type();
   16: - TeX files are now written in UTF-8 even default locale differs;
   17: - minor bug is fixed in ->STR (escaped characters);
   18: - minor bug is fixed in ->Q intrinsic. Resultat is returned as integer
   19: fraction intead real one;
   20: - SIGN now returns (0,0) instead (nan,nan) when complex argument is null;
   21: - Makefile.am are modified to authorize parallel builds;
   22: - minor bug is fixed in CR intrinsic. CR sends a carriage return to printer
   23: and writes warning to standard output;
   24: * Wed Feb 10 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.10 (RPL/2)
   25: - escape codes are now converted in formateur(), not in recherche_type() to
   26: avoid a minor bug in EDIT and VISIT intrinsics;
   27: - minor bug is fixed in formateur_reel();
   28: - file-5.03 is patched to avoid bus error on systems that require memory
   29: alignment;
   30: - minor bug is fixed in evaluation(). Error returned by RPL/C external functions
   31: were able to be avoided by evaluation routine.
   32: * Tue Jan 26 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.9 (RPL/2)
   33: - New benchmark on same hardware than old one :
   34: cauchy:[~/rpl/bench] > ./bench.rpl 
   35: +++RPL/2 (R) version 4.0.9 (samedi 23/01/2010, 18:06:08 CET)
   36: +++Copyright (C) 1989 à 2009, 2010 BERTRAND Joël
   37: Number of scalar operations per second and per core : 2383016
   38: 
   39: - PULPRFL does not abort on BUG() but on execution error;
   40: - TRIM, REPL and TOKENIZE are added;
   41: - sockets options are now set before bind();
   42: - shutdown() is added to all connected sockets;
   43: - minor bug is fixed in SUB intrinsic (segfault when SUB is called with
   44: list argument and inexistant elements).
   45: * Fri Jan 08 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.8 (RPL/2)
   46: - minor bug is fixed in DAEMON intrinsic. When a program was daemonized, all
   47: signals sent to main process were not caught because DAEMON did not replace
   48: old pid by new one;
   49: - major bug is fixed in IFERR/THEN/ELSE/END. Only occurs in expression
   50: evaluation when an error is reported from a subroutine in another subroutine.
   51: For example, error was not caught in following program when it is executed with
   52: -p option :
   53:     TEST << iferr TEST2 then end >>
   54:     TEST2 << 0 inv >>
   55: - major bug is fixed in variable management. Some local variables were
   56: seen as global ones;
   57: - major bug is fixed in rplcore. Rplcore entered in dead lock when
   58: script file contains a multibyte character;
   59: - IN intrinsic is added;
   60: - major bug is fixed in SAME intrinsic : << 1 >> DUP SAME and 'E' DUP SAME
   61: returned false ;
   62: - major bug is fixed in RETURN intrinsic. It only occurs in compiled
   63: programs;
   64: - major bug is fixed in NEG intrinsic. NEG did not make a copy of its arguments;
   65: - regression is fixed in compilation(). "\\" was analysed as '"' '\' '\"' and
   66: strings were never closed;
   67: - some bugs have been fixed in file management;
   68: - RPL/2 can now be run on EBCDIC systems (OS/390);
   69: - major bug is fixed in -A command line option (NULL character is missing);
   70: - minor bug is fixed in rpliconv and RECODE intrinsic. All transliterations are
   71: made by blocks (1024 bytes). When an incomplete multibyte sequence is
   72: encountered at end of block, subroutine aborts with an execution error;
   73: - major bug is fixed in OPEN (TCP/IPv4 sockets).
   74: * Mon Nov 30 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.7 (RPL/2)
   75: - DISP now locks stdout;
   76: - rpliconv is added to replace standard iconv provided by operating system.
   77: Indeed, conversion between different encodages requires transliteration
   78: that is not offered by some iconv utility;
   79: - CURRENC and RECODE intrinsics have been written to allow strings conversions;
   80: - bug is fixed in SYSEVAL. When execvp() returns (for example when arg[0] can
   81: not be found), SYSEVAL enters in a dead lock;
   82: - fprintf is replaced by some functions that allow transliterations between
   83: locales;
   84: - '"' can now be used in strings ("\"");
   85: - iconv is called with -c in preprocessor stage. It is done to write
   86: CGI scripts with RPL/2 because locale charset is set to ANSI_X3.4-1968;
   87: - double free is fixed in liberation() (type SQL, only occurs when locale is
   88: set);
   89: - LOCALIZATION, UCASE and LCASE are added;
   90: - major bug is fixed in EXIT intrinsic that was able to return a false
   91: execution error in compiled scripts (only in DO/UNTIL and REPEAT/WHILE loops);
   92: - major bug is fixed in wrapper_instruction_intrinseque(). When intrinsic() was
   93: used in onLoading from shared library, USE was pushed on stack as algebraic
   94: expression;
   95: - libiconv is upgraded to 1.13.1;
   96: - gnuplot is upgraded to 4.2.6;
   97: - gsl is upgraded to 1.13.
   98: * Mon Sep 28 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.6 (RPL/2)
   99: - pipe() is overwritten by a macro to avoid a system error. Communication
  100: between process are done with pipes and these pipes are managed by a
  101: specific asynchrone thread. If a script try to create more threads than
  102: management thread can destroy, you can quickly achieve maximum number of
  103: opened files and pipe() shall return a system error. This macro tries to create
  104: pipes. If pipe() function returns an error, macro waits and retries. If
  105: number of retries is greater than a hardcoded value, macro returns an error;
  106: - major bug (deadlock) is fixed in process and thread management. I hope
  107: this bug shall be the last one;
  108: - major bug is fixed in DET intrinsic (determinant was computed without LU
  109: diagonalization);
  110: - SWAPCNTXT is added;
  111: - minor bug is fixed in Makefile.am (licences rule).
  112: * Wed Sep 09 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.5 (RPL/2)
  113: - some bugfixes are added in process management;
  114: - all process management is rewritten to avoid usage of defunct process
  115: or thread number;
  116: - new major bug is fixed in interruptions.c. Sometimes, when retrait_thread()
  117: was called before a pending interruption5 (SIGFSTOP), signal handler uses
  118: a freed semaphore and corrupts heap;
  119: - CLRERR is added to erase previous errors;
  120: - ERRN and ERRM return exception message and number;
  121: - major bug is fixed in interruptions.c. All signal are now bufferised
  122: when semaphore_liste_threads is null to avoid deadlock. This bug only
  123: occured when STOP was sent to a dying thread or process (when this thread or
  124: process was running retrait_thread());
  125: - matrix rank is computed before matrix inversion;
  126: - file locks are added to stdin and stdout. stderr is not locked because
  127: all messages written by signal handlers are sent to stderr;
  128: - configure.in script is modified to test gcc version and avoid a bug in
  129: gcc older than 4.4;
  130: - some benchmarks have been done :
  131: 
  132: cauchy:[~/rpl/bench] > ./bench.rpl 
  133: +++RPL/2 (R) version 4.0.5 (mardi 04/08/2009, 18:23:07 CEST)
  134: +++Copyright (C) 1989 à 2008, 2009 BERTRAND Joël
  135: Number of scalar operations per second and per core : 2109867
  136: 
  137: Workstation :
  138: cauchy:[~/rpl/build] > uname -a
  139: Linux cauchy 2.6.30.1 #1 SMP PREEMPT Thu Jul 16 09:49:46 2009 x86_64 GNU/Linux
  140: cauchy:[~/rpl/build] > cat /proc/cpuinfo | grep "model name"
  141: model name      : Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz
  142: model name      : Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz
  143: cauchy:[~/rpl/build] > gfortran -v 2>&1 | grep "gcc version"
  144: gcc version 4.3.3 (Debian 4.3.3-14) 
  145: cauchy:[~/rpl/build] >
  146: 
  147: - SVL and SVD are added;
  148: - COND and RANK are added;
  149: - DIAG-> and ->DIAG are added;
  150: - major bug is fixed in DET intrinsic. DET is rewritten to avoid usage of
  151: eigenvalues. In a first time, matrix rank is estimated to force determinant
  152: to zero if matrix is rank deficient. If not, a PLU decomposition is done to
  153: compute determinant;
  154: - QR matrix decomposition is added;
  155: - LQ matrix decomposition is added;
  156: - Fortran90 files are rewritten to use Fortran2003 bind(C) statement and
  157: Fortran preprocessor;
  158: - default compilation options are now -Wall -Wextra -Wno-pointer-sign
  159: -Wno-unused-parameter;
  160: - all mathematical exceptions are now signaled by exceptions instead of
  161: execution error;
  162: - minor bug is fixed in both CSTOP and RSTOP intrinsics. Without this fix, you
  163: can call twice CSTOP without RSTOP;
  164: - named semaphore support is added (CRSMPHR, CLRSMPHR, SMHRDECR, SMPHRINCR,
  165: SMPHRTRYDECR, SMPHGETV).
  166: * Fri Jul 24 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.4 (RPL/2)
  167: - semaphore is added in interruptions.c to avoid segmentation fault when STOP
  168: signal is sent to a dying thread. Some mutexes are replaced by semaphores too
  169: to be used in signal handlers;
  170: - major bug (memory corruption) is fixed in COL- intrinsic;
  171: - minor bug is fixed in ALARM and WAIT. These temporisations stopped when a
  172: software interrupt was caught;
  173: - rplpp man page is added.
  174: * Fri Jul 17 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.3 (RPL/2)
  175: - minor bug is fixed in WRITE (SIGPIPE is ignored to catch error without
  176: process termination);
  177: - major bug is fixed in FUSE intrinsic (FUSE kills itself and do not kill
  178: its parent);
  179: - a mutex to protect fork() syscall is added;
  180: - all mutexes are unlocked after fork() in DETACH;
  181: - minor bug (double free corruption) is fixed in CLOSE intrinsic;
  182: - major bug is fixed in lecture_pipe when a nullified list is sent into a pipe;
  183: - WORKDIR intrinsic is added;
  184: - Level 0 variables are shared between all threads without copy. Indeed,
  185: there variables are not modifiable and only contains static user definitions;
  186: - branches prediction is added in THEN, ELSE, ELSEIF and REPEAT intrinsics;
  187: - FORTRAN 77 file management subroutines are rewritten in pure C due to
  188: FORTRAN string management. C/FORTRAN 77 string interfaces are broken
  189: in some cases (gcc/gfortran/libc/OS and arch conjonction);
  190: - a memory leak is fixed in REMOVE intrinsic;
  191: - major bug is fixed in MySQL driver (segfault due to a bug in mysql_init()
  192: and due to a libmysqlclient that is not thread safe).
  193: * Wen Jun 10 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.2 (RPL/2)
  194: - new enhanced allocator is written for regular variables, static variables and
  195: shared variables;
  196: - major bug is fixed in src/interruptions.c. This file did not compile
  197: when SQL support was not enabled;
  198: - new allocator is written for system stack and last stack;
  199: - --enable-profile flag is added to configure script. When this flag is
  200: enabled, rpl is built with -pg option;
  201: - SIGFSTP (from Solaris'TERMIO) is caught. On Solaris 10, all process receive
  202: SIGFSTP (with a nullified siginfo structure) instead of SIGHUP when control
  203: process is killed;
  204: - abs() macro is modified to avoid multiple evaluation. Your C compiler has to
  205: know typeof() intrinsic function. This function is not standard but exists
  206: under Sun Studio, gcc, and maybe some others compilers. If this function does
  207: not exist on your compiler, you can change its definition by old one in
  208: src/rpl.h;
  209: - fflush() can now be interrupted by signal (SunOS);
  210: - fflush(NULL) is called before all fork() occurrences;
  211: - generators returned by RDGN help are sorted;
  212: - Lapack is now 3.2.1.
  213: * Mon May 18 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.1 (RPL/2)
  214: - bug is fixed in src/generateurs_aleatoires.awk. It only occurs when RPL/2 is
  215: built under Solaris.
  216: * Wed May 5 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0 (RPL/2)
  217: - major bug is fixed in matrix inversion (due to an inversion between pointer
  218: and object copies);
  219: - RDGN is added to use some different random number generators. See HELP RDGN;
  220: - code analysis is rewritten from scratch to be more efficient and mode
  221: expandable;
  222: - minor bug (segfault in interruption1) is fixed. It only occurs on Solaris
  223: that can returns a nullified siginfo pointer when SIGINT is sent by kernel
  224: keyboard driver;
  225: - gnuplot is now 4.2.5;
  226: - readline is upgraded to 6.0;
  227: - file is upgraded to 5.0;
  228: - Signal handlers are rewritten to send signal to main thread when a signal
  229: is send from an external process;
  230: - configure.in is modified to avoid a libc bug on Solaris (free() can enter in
  231: deadlock when a huge amount of threads is launched);
  232: - minor bug is fixed in boath START and FOR intrinsic. Only occurs when
  233: arguments types are unsupported;
  234: - PLOT instrinsic is added (usage: LINE and MARK do not draw anything. All
  235: data are buffered. PLOT is used to draw these objects.);
  236: - MARK instrinsic is added;
  237: - new allocator mechanism is written;
  238: - some regression bugs have been fixed, some memory leaks too.
  239: * Wed Jan 28 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.9 (RPL/2)
  240: - an estimation of future stack elements is added to avoid some costly memory
  241: allocations. This function has a positive impact on execution speed;
  242: - PSHPRFL and PULPRFL have been added;
  243: - RPL/2 can be built on Solaris 64 bits with some minor scripts alterations.
  244: See README for more explanations;
  245: - MTXSTATUS intrinsic is added;
  246: - YIELD intrinsic is added;
  247: - ERRM is fixed. In some cases, ERRM uses some uninitialized pointers;
  248: - SHARED and PRIVATE intrinsics have been added. A shared variable is a
  249: static variable that is shared by multiple threads;
  250: - '->' intrinsic is improved. All object copies have been avoided;
  251: - -n flag is added to catch HUP signal. stderr and stdout are redirected
  252: to a file, stdin is redirected to /dev/null when control process is killed;
  253: - a mutex is added to each object (before this modification,
  254: RPL/2 used a global mutex and performances in multithreaded programs were very
  255: poor.);
  256: - ALARM is now interruptible;
  257: - both PUT and PUTI intrinsics are improved and do not copy list and table
  258: when nombre_occurrences == 1;
  259: - COPY intrinsic is added. Argument (that can be pointed from some objects)
  260: is replaced by a new copy of itself;
  261: - memory leak is fixed in sequenceur(). It only occurs when an execution error
  262: is caught from interactive mode;
  263: - mutexes have been added (CRMTX, CLRMTX, MTXLOCK, MTXUNLOCK);
  264: - new mutex type is added;
  265: - profile statistics have been added. See -P option;
  266: - major bug is fixed in analyse_syntaxique();
  267: - new SQL type is added;
  268: - due to a trouble in libpq in multithreaded context, SQL intrinsic is split
  269: in three new intrinsics : SQLCONNECT, SQLQUERY and SQLDISCONNECT. Please note
  270: that all programs that worked with old SQL intrinsic can now work with
  271: SQLQUERY. With all new programs, you can open a real connection to databases;
  272: - NRPROC is added. This new intrinsic is used to catch error from child
  273: process. Without NRPROC, any errors returned by child process cause
  274: main process to abort;
  275: - SPAWN is added. This new intrinsic is used to launch a new thread (DETACH
  276: starts a new process). There are no mutexes in RPL/2 because all spawned process
  277: use specific context. Nevertheless, shared variables and associated mutexes
  278: should be added;
  279: - -D flag and DAEMONIZE intrinsic have been added;
  280: - REPEAT, THEN, ELSE and ELSEIF intrinsics are rewritten to be more efficient;
  281: - autoconf script is modified to handle mysql and postgresql on non standard
  282: directories;
  283: - -t flag is fixed ('\0' is missing...);
  284: - SWI and SEND pipes have been modified to be more robust on systems where
  285: getpid() can return (pid_t) -1 or (pid_t) -2 value;
  286: - major bug is fixed in REPEAT intrinsic. Only occurs in compiled mode;
  287: - all but jump variables are removed from source. All signal handlers now
  288: use encapsulated variables and signals are caught by thread;
  289: - major bug is discovered in ->LCD. Both LCD-> and ->LCD have been fixed;
  290: - NEWPLANE is added;
  291: - LINE is added;
  292: - DGTIZ is added;
  293: - major bug is fixed in ROW-> intrinsic (comes from new garbage collector);
  294: - lot of multiprocessing related bugs have been fixed; That was a huge work but
  295: it's done. Data integrity is now respected during transmission (POKE, SEND and
  296: SWI);
  297: - ITRACE is added. This intrinsic is only used to debug internal structures and
  298: should not be used in regular programs;
  299: - SWISTATUS is written;
  300: - WFACK is written;
  301: - rplcore files are now able to handle compilation errors;
  302: - rplcore files are now able to handle evaluation and interruption errors;
  303: - SORT can now be used on table;
  304: - tables can now be sent by POKE and SEND instrinsics;
  305: - software interrupts do not inherit IFERR controls;
  306: - LOGGER intrinsic is added;
  307: - All WF* intrinsics but WFSOCK are made interruptible;
  308: - ISWI intrinsic is added. Current interrupt is marked as 'interruptible';
  309: - tables can be used with SAME intrinsic;
  310: - minor bug is fixed in recherche_variable(). Only occurs when an error
  311: is caught;
  312: - external functions can now be used in expressions;
  313: - major bug (deadlock) is fixed in WFPOKE intrinsic;
  314: - some mistakes have been fixed under Solaris;
  315: - major bug is fixed in RETURN intrinsic (only occurs when evaluation and
  316: program modes are mixed);
  317: - major bug (dead lock) is fixed in gestion_processus.c;
  318: - major bug is fixed in WFPROC;
  319: - rplc, rpllink and mkrplso manpages are added;
  320: - rpltags tool and manpage are added;
  321: - WFLOCK is fixed;
  322: - RPL/2 kills now all process on error;
  323: - major bug (segfault) is fixed in REMOVE intrinsic.
  324: * Mon Jul 28 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.8 (RPL/2)
  325: - configure script is modified to check mysql and postgresql libraries
  326: on all standard locations. Tested and works on FreeBSD, Solaris and Linux
  327: Debian;
  328: - Tables are allowed in eval ( <[ 1 ]> 't' sto 't(1)' eval );
  329: - ->TABLE and TABLE-> intrinsics are added;
  330: - major bug is fixed in recherche_type(). Only occurs when rpl executes
  331: precompiled scripts;
  332: - new type is added: table with <[ ]> delimiters:
  333: RPL/2> { 2 3 2 } crtab
  334: 
  335: 1: <[ <[ <[ { }
  336:             { } ]>
  337:          <[ { }
  338:             { } ]>
  339:          <[ { }
  340:             { } ]> ]>
  341:       <[ <[ { }
  342:             { } ]>
  343:          <[ { }
  344:             { } ]>
  345:          <[ { }
  346:             { } ]> ]> ]>
  347: 
  348: CRTAB new intrinsic creates a regular table. By default, all elements are
  349: nullified lists;
  350: - rplexternals.h is modified and improved;
  351: - GNU File (renamed as rplfile) cannot be built due to a bug in libtoolize and
  352: configure script.
  353: * Mon Jun 23 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.7 (RPL/2)
  354: - libiconv is added (iconv library exists on some systems but implemantations
  355: differ and RPL/2 can crash);
  356: - --enable-encoding is added to configure script to force system encoding.
  357: Enconding detection does not work on OpenBSD;
  358: - internal file utility is shipped and used to avoid xBSD file mistakes;
  359: - GSL 1.11 and gnuplot 4.2.3 are now used;
  360: - src/Makefile.am is modified to built RPL/2 ons Solaris 10/sparc;
  361: - all but user's messages are written on stderr;
  362: - DUPCNTXT and DROPCNTXT are added to handle more efficiently contexts;
  363: - SCHED is added. Whit SCHED, you can limit CPU ressource by RPL/2 process;
  364: - FUSE, RFUSE and CLRFUSE have been added;
  365: - new bug discovered on NetBSD. sigpending() does not return any signal, thus
  366: DETACH intrinsic enters in a definitive dead lock. I have no idea to write a
  367: workaround for this major bug. Nevertheless, all others capabilities seems to
  368: work fine;
  369: - '->' is modified to return error when program tries to initialiaze two
  370: variables with the same name like
  371: 1 0 -> I I << ... >>;
  372: - CSTOP and RSTOP have been added (catch and release stop signal);
  373: - CONTINUE is added to continue a pending process halted by SUSPEND;
  374: - SUSPEND is modified to be stopped by SIGFSTOP;
  375: - src/Makefile.am is modified to avoid //TRANSLIT flag on systems that don't
  376: support GNU iconv;
  377: - configure.in script is modified to avoid bugs when --with-postgresql and
  378: --with-mysql are specified;
  379: - TRNC is written;
  380: - minor bug is fixed in both IFT and IFTE. Returned expression has to be
  381: evaluated.
  382: * Fri Apr 11 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.6 (RPL/2)
  383: - SIGPIPE signal handler is modified to avoid abort process when POKE tries
  384: to write data into a pipe without reader;
  385: - major bug is fixed in RETURN intrinsic. When RETURN was called from a detached
  386: process without -p modifier, it can send an ABORT signal instead a KILL one;
  387: - PEEK, POKE and WFPOKE new intrinsics are written;
  388: - major bug due to new garbage collector is fixed in rplexternals.h (double free
  389: corruption);
  390: - CLRCNTXT is added (clear contexts);
  391: - VERIFY intrinsic is written;
  392: - PSHCNTXT and PULCNTXT are added (PSHCNTXT pushes context on an
  393: internal contexts stack, PULCNTXT pulls contexts from this internal stack).
  394: Main usages of these intrinsics are in conjonction with IFERR or with
  395: software interrupts;
  396: - HEAD, TAIL and REVLIST intrinsics are added;
  397: - function pointers have been added to function description;
  398: - new analyse() routine is written. All instrinsics are now in a N-tree;
  399: - software interrupts have been fixed;
  400: - multitasking capabilities have been modified to be usable on NetBSD. All real
  401: time signals have been removed;
  402: - major bugs are fixed in multitasking (mutex trouble _and_ segmentation fault);
  403: - minor bug is fixed in STR->. STR-> could return a system error instead an
  404: execution one;
  405: - first bug due to new garbage collector is fixed in '+' ({ } { } +) and in
  406: '-' intrinsics;
  407: - PostgreSQL support is written.
  408: * Mon Mar 17 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.5 (RPL/2)
  409: - locale can now be specified in SQL intrinsic :
  410: { "mysql:iso-8859-1" "server" "database" ... };
  411: - major bug is fixed un analyse_algebrique(). When DISP printed an algebraic
  412: object, 'DISP()' was pushed in stack;
  413: - same major bug is fixed in <, >, <=, >= and <>;
  414: - major bug fixed in formateur() (segfault when a symbol is used without "'");
  415: - major bug is fixed in DUPN intrinsic;
  416: - when software interrupt (SWI) is evaluated, SWI pushs process id on stack
  417: before starting interrupt evaluation;
  418: - -f parameter is added when iconv is called;
  419: - as old file program was bugged, a new option is added to configure script.
  420: When configure is called with --disable-encoding-autodetection, make does not
  421: try to detect source encoding. Please, do not use if RPL/2 can be built
  422: without this option !
  423: - new garbage collector (and more efficient) is written;
  424: - configure script is modified to be usable on NetBSD 4.0, but as NetBSD does
  425: not support real time signals, RPL/2 cannot use multitasking functions;
  426: - error returned by preprocessor are now catched by RPL/2;
  427: - -p option is added. With this option, all scripts are compiled before
  428: RPL/2 starts evaluation. HALT cannot be used with -p, but all programs run
  429: 40% faster;
  430: - read and write operations in pipe() are rewritten to be sure that such
  431: operations are atomic;
  432: - minor bug is fixed in LOGSCALE. With {} LOGSCALE, all scales have to be
  433: linear;
  434: - major bug is fixed in gestion_processus.c (some pipes were not closed).
  435: * Sat Jan 5 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.4 (RPL/2)
  436: - major bugs have been fixed in software interrupt management.
  437: * Fri Jan 4 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.3 (RPL/2)
  438: - JDATE and RDATE are written;
  439: - minor bug (segfault) is fixed in EXSUB. It only occurs when EXSUB is executed
  440: with wrong arguments;
  441: - KILL now kills current process, ABORT kills program;
  442: - software interrupts support is added (SWI, WFSWI, SWILOCK, SWIUNLOCK,
  443: SWIQUEUE, STOSWI, RCLSWI, CLRSWI);
  444: - major bug is fixed in SQL intrinsic (argument types);
  445: - system stack is now written in core file;
  446: - ALARM is added;
  447: - nanosleep() now replaces sleep() and usleep() system calls;
  448: - _GNU_SOURCE is added to rpl.h.
  449: * Fri Nov 30 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.2 (RPL/2)
  450: - License is changed. Now RPL/2 license is CeCILL (GPL compliant);
  451: - EXGET adn EXSUB are added;
  452: - minor bug is fixed in recherche_type(). { << } has to return an error.
  453: '<<' and '>>' are both functions _and_ delimiters. Thus { IF } is
  454: acceptable, but { >> } isn't;
  455: - GSL is now 1.10, gnuplot 4.2.2 and units 1.87;
  456: - OBGET and OBSUB intrinsics are added;
  457: - src/Makefile.am minor bug is fixed (make clean deleted src/rpl.xpm);
  458: - WAIT intrinsic is modified to use sleep() and usleep() if delay is
  459: greater than one second. On some systems, usleep argument must be lower
  460: than 1E6;
  461: - numeric and character formats are now tested;
  462: - -A flag is added. -A is used to give command line parameters to main
  463: routine. Example:
  464: rayleigh:[~/rpl-4.0.0.prerelease.2/examples] > ./test3.rpl -A "<< X sin >>"
  465: +++RPL/2 version 4.0.0.prerelease.2 (vendredi 05.10.2007, 19:03:01 CEST)
  466: +++Copyright (C) 1989 à 2006, 2007 BERTRAND Joël
  467: << 'X' SIN >>
  468: rayleigh:[~/rpl-4.0.0.prerelease.2/examples] > cat test3.rpl 
  469: #!/usr/local/bin/rpl -s
  470: 
  471: TEST
  472: <<
  473:     disp
  474: >>
  475: - minor bug (segfault) is fixed in encart() routine (splash screen). Child
  476: process ended with segfault due to a mistake in Motif widget cleaning
  477: process;
  478: - major bug is fixed in DETACH intrinsic. Child process were locked when
  479: they were started with a locked mutex that comes from its father;
  480: - ctrl+C can now kill all child process;
  481: - WFPROC and WFDATA are rewritten;
  482: - RETURN is fixed to be usable in detached process;
  483: - HALT is not exported to child process;
  484: - FLOW filetype is added;
  485: - Makefiles are modified to support gcc-4.2 and gfortran-4.2;
  486: - socket support (Unix, IPv4, IPv6, STREAM, DATAGRAM, ROBUST DATAGRAM,
  487: SEQUENTIAL DATAGRAM, RAW) is added. Warning: IPv6 sockets have not been tested
  488: because I don't have any IPv6 compliant server, but they should work.
  489: * Mon Sep 10 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.1 (RPL/2)
  490: - library management is rewritten from scratch. EXTERNAL is removed and
  491: EXTERNALS is added. Now, all exported symbols are sent to RPL/2 when
  492: library is loaded;
  493: - OPEN arguments are changed;
  494: - EXTERNAL now checks availability of external functions;
  495: - number of arguments is verified in analyse_algebrique().
  496: 'SIN(A+X,2)' is now refused because SIN requires only one argument;
  497: - all but lapack symbols are exported from librpl with librpl, f77 or f90
  498: prefix;
  499: - minor bug is fixed in formateur() (AND and OR requires parenthesis);
  500: - rplexternals.h header file is added; Now, it is very easy to write
  501: external functions;
  502: - memory leak is fixed in analyse_algebrique();
  503: - minor bug (symbole flag) is fixed in sequenceur.c and types.c;
  504: - temp file was not removed when an error occurs in EDIT or VISIT;
  505: - 'name' should not returned a function ("FCT" object);
  506: - -rdynamic is added to src/Makefile.am.
  507: * Mon Jul 23 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.0 (RPL/2)
  508: - Major bug is fixed in interface_tex.c. When there are errors in latex
  509: file, latex command waits for input on its command line;
  510: - major bug is fixed in tex.h (multiline strings);
  511: - examples subdir is added;
  512: - major bug is fixed in recherche_variable(). When an expression is evaluated
  513: in a function, all variables set in this function must be visible in
  514: expression. Thus, << I -> 3 << << I >> eval >> must return 3, not 'I';
  515: - LAST stack is saved in rplcore;
  516: - major bug is fixed in ->HMS. It only occurs when argument type is not
  517: integer or real;
  518: - major bug (segfault) is fixed when rpl is called with empty file;
  519: - libtool support is removed. Two new scripts (rplc and rpllink) are provided
  520: to use librpl.a;
  521: - automake scripts are rewritten to avoid a misconfiguration of librpl.a
  522: when -j make option is used;
  523: - trace output now contains PID;
  524: - rpl-core is renamed in rpl-code-$PID;
  525: - rplc and rpllink scripts can now sompile and build C and Fortran
  526: executables with librpl.a;
  527: - New classification, only a working simplification() routine is
  528: required to announce 4.0.0.final;
  529: - librpl entry point is modified to return results as strings array;
  530: - -S option is added;
  531: - due to a major bug in libtool, libtool is removed from autoconf/automake
  532: scripts;
  533: - VERSION is modified to return a list.
  534: * Tue Jul 17 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8x (RPL/2)
  535: - major regression bug is fixed in PRINT due to mistake in latex pathes;
  536: - gnuplot does not have to be built if --disable-embedded-gnuplot is set;
  537: - new prompt ("RPL/2> ") is used for interactive mode;
  538: - ARCCOS, ARCSIN, ARCTG, ARGCH, ARGSH, ARGTH, CH, SH, TH and TG intrinsics
  539: are removed, because all of these intrinsics have two forms. ARCCOS is
  540: the same than ACOS, TAN=TG, COSH=CH. Please adapt your scripts;
  541: - gnuplot compilation does not have to be done when disable-gnuplot is set;
  542: - major bug is fixed in RECV that avoid usage of multitasking.
  543: * Tue Jul 10 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8w (RPL/2)
  544: - False error (system error) was reported by recherche_type();
  545: - recherche_type() returns syntax error if a list is included in
  546: an algebraic expression;
  547: - --enable-debug is modified. Now, return can be defined to print
  548: on stdout its position in source code (line and function);
  549: - minor bug is fixed in recherche_type(). Don't forget that space
  550: are not significant in algebraic expression:
  551: '12 3+ 12    X' is the same expression than '123+12X';
  552: - src/Makefile.am is modified to avoid double compilation process;
  553: - --enable-final-run-path is added to configure.in script;
  554: - STATIC is modified to declare static variables in expression. Warning: static
  555: variables used in expressions are deleted when evaluation of this expression
  556: ends;
  557: - MEM does not report static variable sizes;
  558: - minor bug is fixed in HELP intrinsic. When the last instruction was not
  559: known, HELP function was pushed in operational stack. HELP did not work
  560: when there were space on input line.
  561: * Mon May 28 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8v (RPL/2)
  562: - DATE is modified: reduced julian days is replaced by fraction part
  563: of julian days. Old field used by julian days is now integer part of julian
  564: days;
  565: - CONVERT intrinsic is rewritten to accept absolute path in popen;
  566: - automake scripts are modified to delete src/lock file if build process aborts;
  567: - rplargs.h directly includes rpl.h;
  568: - absolute pathes are added to all external program files (rplplot, rplpp...);
  569: - intrinsic functions are case sensitive. External functions are case
  570: unsensitive. A minor bug is fixed in recherche_type() because all external
  571: functions were case unsensitive when they were evaluated from RPN expressions;
  572: - HELP function is rewritten to be more friendly (a la OpenVMS);
  573: - external wrapper (rplplot) is written to force usage of gnuplot provided
  574: by RPL/2 if it is built during build process. If this build does not exist,
  575: it tries to launch regular gnuplot;
  576: - gnuplot is added to source tree to avoid some trouble between preinstalled
  577: gnuplot and release used by RPL/2. This addition to source tree is
  578: required by some incompatibility between gnuplot releases;
  579: - Lapack is upgraded to 3.1.1 release;
  580: - GSL is upgraded to 1.9 revision;
  581: - RPL_TMP_PATH env variable is added to specify the path of tempfiles. If
  582: it is not set, /tmp is used. If /tmp is not writable, /var/tmp is used. If
  583: not, ./ but RPL/2 can hang with a fatal error if this last location is
  584: not writable;
  585: - major regression is fixed in SYSEVAL intrinsic due to introduction of
  586: error scrutation.
  587: * Sat Mar 24 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8u (RPL/2)
  588: - SYSEVAL is modified to return an error when execvp() syscall cannot
  589: execute its arguments;
  590: - -hard-float sparc option is remove from mkrplso;
  591: - major bug is fixed in SQL intrinsic that hangs when query did not return
  592: any values (for exemple INSERT);
  593: - escape sequences can be used in SYSEVAL argument like "echo \"string\""
  594: SYSEVAL;
  595: - graphic and PostScript outputs are now cleared in child process;
  596: - locales are now used by preprocessor;
  597: - major bug is fixed in impression_tex(). PRINT did not work due to a bug
  598: introduced by multitasking code;
  599: - SORT can now use name as its argument.
  600: * Sun Jan 21 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8t (RPL/2)
  601: - Variable management has been rewritten and some tests have been done. Now,
  602: it is possible to execute:
  603: 
  604: #!/usr/local/bin/rpl -sc
  605: 
  606: TEST
  607: <<
  608:     1 1000 start VAR_S VAR_S2 next
  609: >>
  610: 
  611: VAR_S
  612: <<
  613:     static 3 -> C << C disp 'C' incr if C 10 > then 'C' volatile end >>
  614: >>
  615: 
  616: VAR_S2
  617: <<
  618:     static 3 -> C << C disp 'C' decr >>
  619: >>
  620: 
  621: - configure.in script is added in lapack subtree;
  622: - VARS is modified to display variables status (LOCKED/UNLOCKED and
  623: STATIC/VOLATILE/PARAMETER/VARIABLE);
  624: - STATIC and VOLATILE intrinsics are added to specify static variables. A
  625: static variable can be transformed into volatile with VOLATILE.
  626: With STATIC, next variables created by '->' are static;
  627: - PROTECT and UNPROTECT are added to protect variables against write
  628: or purge actions. New PARAMETER and VARIABLE intrinsics are modified
  629: versions of PROTECT and UNPROTECT that only deal with global variables
  630: (see RCL/SAVE);
  631: - variable management routines have been rewritten. The new ones are
  632: uncompatible with the old ones. Before these changes, a local variable
  633: was exported to a child subroutine, but cannot be modified into this
  634: child subroutine. Now, a local variable is accessible only in its subroutine;
  635: - SAVE intrinsic is added to manipulate global variables;
  636: - SUSPEND is written. RPL/2 waits for a SIGCONT signal;
  637: - SORT, COL->, ->COL, ROW->, ROW-> intrinsics are written;
  638: - Makefile.am are improved;
  639: - minor bug is fixed in ->list and ->array. Without any argument, these
  640: intrinsic only send a SIGSEGV;
  641: - ncurses is updated to release 5.6;
  642: - lapack is updated to 3.1.0.
  643: * Sun Dec 31 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8s (RPL/2)
  644: - default CFLAGS/FFLAGS/FCFLAGS are modified due to a bug in gcc-sparc64
  645: that avoid a complete build;
  646: - CTRL+Z and CTRL+C signals only perform actions on main process;
  647: - major bugs are fixed in multitasking capabilities (some mistakes with
  648: mutexes and several terminated child process cannot be closed by the
  649: operating system);
  650: - minor bug fixed in SCLS (mistake between main and auxiliary axes);
  651: - variables are now written in rpl-core file;
  652: - NEG is modified to return 0 instead -0 when its argument is real or complex
  653: number;
  654: - ROW+ intrinsic can now be used on empty matrix without dimension error:
  655: [[]] 1 [[ 1 2 ]] row+;
  656: - major bug is fixed in SUB intrinsic. It only occurs with lists when
  657: it tries to returns invalid elements like { } 1 2 sub;
  658: - major bug is fixed in ROW- intrinsic;
  659: - major bug is fixed in ROW+ intrinsic.
  660: * Sat Dec 02 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8r (RPL/2)
  661: - creation_nom_fichier() is rewritten to force all process to create
  662: different file names;
  663: - RANLUX is removed to use GSL library and avoid a bug in gfortran-4.1;
  664: - readline-5.2 and units-1.86 are now used;
  665: - SEQUENCE statement is added in fonctions_speciales.f90 to fix a build
  666: failure.
  667: * Mon Oct 23 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8q (RPL/2)
  668: - wfproc is rewritten to avoid a dead lock;
  669: - major mistake is fixed in both sommation_vecteur_reel() and
  670: sommation_vecteur_complexe();
  671: - multitasking is rewritten from scratch to fix some mistakes with
  672: multithreading. DETACH, SEND and RECV now use four real time signals to
  673: perform a better task synchronization;
  674: - some bugs introduced by locales specific compilations are fixed;
  675: - major memory corruption is fixed in DEPND;
  676: - HELP intrinsic is modified to print a classified output.
  677: * Mon Aug 12 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8p (RPL/2)
  678: - major memory leak is fixed in DETACH intrinsic. Files were closed by
  679: both childs and parent;
  680: - bug that avoids usage of Motif is fixed in configure.in;
  681: - makefile's are modified to build RPL/2 with other locale than ISO-8859;
  682: - db is removed from source tree due to some compilation troubles (db's
  683: autoconf script is broken);
  684: - sdb is removed from source tree due to some memory leaks and some troubles
  685: with its configure script. New SQL routines are written, but only MYSQL
  686: subsystem is available. Now, SQL can be used without memory leak;
  687: - major bug is fixed in evaluation() subroutine. Value of error flag
  688: was not returned in some cases;
  689: - FACT intrinsic does not accept real arguments anymore due to the new intrinsic
  690: GAMMA;
  691: - GAMMA intrinsic is added (complex function) ;
  692: - autoconf/automake scripts are modified to compile F90 sources;
  693: - src/distributions.f is replaced by src/distributions.f90. All Numerical
  694: Recipes references are avoided to use GSL;
  695: - GSL is upgraded to 1.8 release;
  696: - -lz is added in src/Makefile.am to fix a mistake in sparc32.
  697: * Mon Apr 10 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8o (RPL/2)
  698: - fft.f is removed. Now FFT intrinsic uses dft subroutine;
  699: - Sparc64 optimizations are modified. Now gcc-4.0 can be used to build RPL/2 on
  700: Sparc64. Same modifications are done on sparc32;
  701: - major bug are fixed in both PLOTTER and HISTOGRAM intrinsics
  702: (interface with GNUplot).
  703: - major bugs are fixed in USE/REMOVE intrinsics (system stack corruption);
  704: - corruption of last stack is fixed in mclrin (only occurs when an error is
  705: caught);
  706: - major bug (in a malloc condition) is fixed in derivation().
  707: * Tue Jan 07 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8n (RPL/2)
  708: - configure script and makefiles are modified to be usable with automake
  709: 1.9.6 (GNU), libtool 1.5.20 (GNU) and autoconf 2.59 (GNU).
  710: - gestion_fichiers() prototype is modified to be built by gfortran. Now,
  711: gfortran is the default compiler for FORTRAN code included in RPL/2;
  712: - libdb is added to perform indexed file access;
  713: - SQL interfaces are added (SQL intrinsic). Only mysql is supported;
  714: - minor bug is discovered and fixed in matrix multiplication (precision);
  715: - rpl.spec.in and debian directory are deleted due to some mistakes in the
  716: scripts required to build packages.
  717: * Tue Nov 15 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8m (RPL/2)
  718: - major bug is fixed in IFERR/THEN/(ELSE)/END structure. It occured when an
  719: error is caught before a regular IF/THEN/(ELSE)/END structure in
  720: IFERR/THEN/(ELSE)/END structure;
  721: - chmod 755 debian/rules is done by makefile;
  722: - major bug is fixed in recherche_instruction_suivante():
  723: +++"123 " str->
  724: +++Erreur : Argument invalide pour la commande << "123 " str-> >>
  725: Before this fix, it was impossible to use a command line that ends with spaces.
  726: * Sat Oct 29 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8l (RPL/2)
  727: - SELECT/CASE/DEFAULT/END is modified. Now, it is impossible to write:
  728: SELECT
  729:     <case>
  730:     CASE <test> THEN <expr> END
  731:     ...
  732:     DEFAULT
  733:     DEFAULT <- two DEFAULT's
  734: END
  735: 
  736: or
  737: 
  738: SELECT
  739:     <case>
  740:     CASE <test> THEN <expr> END
  741:     ...
  742:     DEFAULT
  743:     ...
  744:     CASE <test> THEN <expr> END <- CASE statement after DEFAULT
  745: END
  746: - major bug is fixed (in (unsigned char) getc()). It only occurs when RPL/2 is
  747: built with gcc-4.0.
  748: - configure.in is modified to be usable with gcc-4.0.
  749: * Mon Oct 3 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8k (RPL/2)
  750: - segmentation fault occurs in both PROMPT and INPUT when readline returns
  751: NULL (ctrl^D). This trouble is now fixed;
  752: - major bug is fixed in DATE intrinsic (julian days and reduced julian days);
  753: - stderr of rplpp is now caught;
  754: - SYSEVAL is modified to use stdin, stdout and stderr:
  755: ESSAI
  756: <<
  757:     // Only stdout and stderr
  758:     "ls" dup disp syseval
  759:     clmf
  760:     // Now with stdin ("zer\naze\n")
  761:     { "cat" "zer" "aze" } dup disp syseval
  762:     clmf
  763: >>
  764: - GSL is upgraded to 1.7.
  765: * Thu Sep 29 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8j (RPL/2)
  766: - SYSEVAL is modified. It now returns stdout and stderr in a list;
  767: - minor memory leak is fixed in recherche_instruction_suivante() subroutine.
  768: * Thu Aug 4 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8i (RPL/2)
  769: - internal file descriptors are modified to be usable with DUMP intrinsic;
  770: - VARS intrinsic is modified and now prints value of variables.
  771: * Thu Jul 21 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8h (RPL/2)
  772: - units is upgraded to 1.85 release;
  773: - -d flag is added in command line. Don't use this flag if you don't know
  774: what you do! It is only used to debug internal memory allocations;
  775: - internal pointers (ADR objects) are printed as 64 bits pointers to be usable
  776: on 64 bits wide architectures.
  777: * Sat apr 16 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8g (RPL/2)
  778: - DUMP is rewritten to be portable. It works, but without shared libraries,
  779: printer file, graphic files and last error. Support for this kind of objects
  780: shall be available as soon as possible. Warning: DUMP cannot be used in
  781: multiprocessing;
  782: - configure.in script is modified to return an error when g77 is not found;
  783: - a new internal type is used to handle shared libraries;
  784: - a major bug is discovered and fixed in recherche_type(). It only occurs
  785: in interactive mode ([[ 1 ]] returns a syntax error);
  786: - a major bug is found in simplification_arbre(). Subroutine is disabled.
  787: * Thu mar 17 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8f (RPL/2)
  788: - option -r is added to restart a process from a dump file;
  789: - DUMP intrinsic is added. It performs synchronous checkpointing;
  790: - GSL is upgraded to release 1.6.
  791: * Wed dec 22 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8e (RPL/2)
  792: - Result types of PERM and COMB instrinsic are fixed;
  793: - RPL/2 now uses a new preprocessor due to a new 'feature' in gcc/cpp;
  794: - RPL/2 can now use all processors on multiprocessor workstations with
  795: DETACH, SEND, RECV and WFPROC new intrinsics. The first test program was:
  796: 
  797: #!/usr/local/bin/rpl -cs
  798: 
  799: MULTIPROCESSUS
  800: <<
  801:     'FONCTION' detach
  802:     do "B" disp until false end
  803: >>
  804: 
  805: FONCTION
  806: <<
  807:     do "A" disp until false end
  808: >>
  809: 
  810: * Sun dec 12 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8d (RPL/2)
  811: - major bug is discovered and fixed in analyse_notation_algebrique :
  812: +++'A-B-C' returned
  813: 1: 'A-(B-C)' instead of 1: 'A-B-C'. It is now fixed;
  814: - recherche_type() routine is improved to cast in name 1E5E-6 or 1.23.4.5.
  815: * Fri dec 7 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8c (RPL/2)
  816: - major bug is fixed in formateur_fichier(). Now, it is possible to use
  817: lists in a file record. Note that only sequential and formatted files
  818: are supported;
  819: - major bug is fixed in BACKSPACE intrinsic. It only occurs on large
  820: records.
  821: * Fri nov 26 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8b (RPL/2)
  822: - minor bug is fixed in IP intrinsic: when argument was real without
  823: fraction part, IP returned a real, not an integer;
  824: - minor bug is fixed in recherche_type(): it is now possible
  825: to enter +++<NB3 + return. RPL/2 returns a syntax error, not a acces
  826: violation;
  827: - MCLRIN (MacLaurin series) intrinsic is added;
  828: - TAYLR (Taylor series) instrinsic is added;
  829: - very minor bug is fixed in evaluation(). Sometimes, when evaluation()
  830: is stopped by ^C, EXIT intrinsic did not work due to a mistake in
  831: the internal system stack;
  832: - minor bug is fixed in encart.c. System error messages returned by
  833: this subroutine were only available in french;
  834: - internal RPL/2 system stack corruption is fixed. This bug only affects
  835: interactive and debug modes when evaluation routine returns an error;
  836: - symbolic derivation subroutine is now able to derivate functions;
  837: - minor bug is fixed in instruction_multiplication: now 'X' 1. * returns
  838: 'X' and not 'X*1'.
  839: * Thu nov 18 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8a (RPL/2)
  840: - ctags in src/Makefile.am is fixed;
  841: - first derivation subroutines are written;
  842: - major bug is fixed in analyse_algebrique() :
  843: before this patch, '3-5+4' was understand as '3-(5+4)' !
  844: - instruction_division() is improved and returns 0 when it evaluates
  845: '0/X';
  846: - instruction_moins() is improved and returns 'NEG(X)' when it evaluates
  847: '0-X'.
  848: * Fri nov 5 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8 (RPL/2)
  849: - interface_gnuplot is modified and do not use any deprecated gnuplot
  850: commands. Warning, you must use gnuplot 4.0;
  851: - graphic output is improved. Now, it is possible to use two separated
  852: scales on the same 2D graph (with "main" and "auxiliary" option of SCALE
  853: intrinsic). For example:
  854: 
  855: #!/usr/local/bin/rpl -c
  856: 
  857: TEST
  858: <<
  859:     'X' indep
  860:     { X Y } autoscale
  861:     'SIN(X)' steq draw
  862:     { "auxiliary" } axes
  863:     { X Y } autoscale
  864:     'COS(X)+2' steq draw
  865:     { { "ticsonly" "automatic" } { "ticsonly" "automatic" } } axes
  866:     drax persist
  867: >>
  868: 
  869: - a major bug is fixed in encart.c;
  870: - ncurses is patched.
  871: * Mon nov 1 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7o (RPL/2)
  872: - configure script is updated;
  873: - splash screen is added;
  874: - minor bug is fixed in SYSEVAL (only occurs with SIGINT signal).
  875: * Sun oct 24 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7n (RPL/2)
  876: - stack overflows are caught.
  877: * Fri oct 8 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7m (RPL/2)
  878: - minor bug is fixed in both << and >> intrinsics. It only occurs when
  879: "<<" HELP or ">>" help is called;
  880: - DFT and IDFT are added;
  881: - minor bug is fixed in FFT (explicit length has to be positive);
  882: - MOD can be used with vectors and matrices arguments;
  883: - major bugs are fixed in FFT and IFFT (trouble in the computation of the
  884: default length of FFT). Only occur with matrices.
  885: * Sat aug 14 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7l (RPL/2)
  886: - readline is upgraded to 5.0;
  887: - gsl is upgraded to 1.5;
  888: - corrections in HELP functions.
  889: * Fri aug 7 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7k (RPL/2)
  890: - HELP is added;
  891: - statistic matrix SIGMA is renamed as SDAT;
  892: - rpl.h is modified to workaround a bug in Cygwin environment
  893: (SA_NOMASK is not defined in include files);
  894: - overflows are tested in HMS+ and HMS-;
  895: - CEIL, FLOOR and IP are modified to return a correct result with huge
  896: arguments that cannot be stored as integers;
  897: - fix a minor bug in ->LIST. The LAST stack now contains all arguments
  898: of this intrinsic;
  899: - flag 32 is used with DISP;
  900: - major bug is fixed in ->Q intrinsic (type of argument and memory leak).
  901: * Fri may 21 2004 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7j (RPL/2)
  902: - major bug is fixed in analyse(). CHR intrinsic cannot be called because
  903: I have erased a 'break' in a case statement;
  904: - major bug is fixed in AXES intrinsic. It only occurs when AXES is used
  905: with "main" or "auxiliary" option;
  906: - major bug is fixed in recherche_types(). With this patch, 'sin(X)' is
  907: now well analysed as 'SIN(X)'.
  908: * Thu apr 22 2004 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7i (RPL/2)
  909: - major bug is discovered and fixed in formateur(). It only occurs when
  910: an algebraic expression is displayed with '='. In some cases, parenthesis
  911: are missing. Same fix in formateur_fichier();
  912: - a minor bug is fixed in evaluation.c that does not return any error when
  913: it tries to execute 'a=z' e = ;
  914: - new code is written in each intrinsic functions to return their required
  915: arguments.
  916: * Sun apr 14 2004 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7h (RPL/2)
  917: - a minor bug is fixed in recherche_type: 1.E90 is now a real;
  918: - minor bug is fixed in formateur_reel(). It only occurs in STD mode:
  919: 1E90 was printed as 1.00000000000000E90;
  920: - HELP is added;
  921: - formateur() is fixed to properly print matrices and lists;
  922: - a lot of warnings due to deprecated syntax are fixed;
  923: - DFT is modified but not usable;
  924: - cosmetic bug is fixed in formateur_tex.c;
  925: - minor bug is fixed in FFT intrinsic (segfault when FFT is called without
  926: any argument).
  927: * Sun Jan 25 2004 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7g (RPL/2)
  928: - included ncurses is updated to 5.4;
  929: - included units is updated to 1.83c;
  930: - major bug is fixed in recherche_type() function. With this bug, RPL/2
  931: prints 'A/INV(Z+E)+R' when you enter A Z E + inv R + /;
  932: - DFT intrinsic is added. It returns the discrete Fourier transform of an
  933: array. When the length of each line is 2**n, the result is the same as
  934: the result of FFT;
  935: - minor bug is discovered and fixed in PUT and PUTI intrinsics when these
  936: instructions verify arguments types. It does not affect the result when
  937: all arguments are correct.
  938: * Sun Oct 19 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7f (RPL/2)
  939: - major bug is fixed in evaluation of both EXIT and CYCLE intrinsics. Now,
  940: EXIT can be used (as ABORT and KILL) to quit interactive mode of RPL/2;
  941: - units is updated to 1.83a release;
  942: - formateur_fichier.c is modified to handle unformatted files. This task
  943: is not completed.
  944: * Mon Aug 25 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7e (RPL/2)
  945: - CLUSR is written. It purges all global variables;
  946: - BESSEL intrinsic is fixed to allow the use of expressions as arguments;
  947: - a major bug was introduced with rpl-4.00pre7d in formateur.c. It appears
  948: when an algebraic expression is displayed or printed but does not affect
  949: computations. It is now fixed;
  950: - gsl is upgraded to 1.4.
  951: * Mon Aug 18 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7d (RPL/2)
  952: - algebraic expressions are now more readable when they are displayed
  953: (less parenthesis);
  954: - rplpp is modified to workaround a mistake in 'which' function (seems to appear
  955: on Debian distribution, but since cpp is in the default path, RPL/2 works
  956: fine...);
  957: - NOT is not correctly formatted in formateur.c:
  958: Z NOT -> 'NOT Z' but 'A+Z' NOT -> 'NOT A+Z' and 'NOT Z+A' -> 'NOTZ+A'
  959: with a NOTZ function !
  960: * Sun Aug 10 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7c (RPL/2)
  961: - CYCLE is fixed. Now, it is possible to use CYCLE in an expression even
  962: if the main loop is in a program;
  963: - RPL/2 is tested with efence and valgrind;
  964: - configure.in script is modified;
  965: - units.c is modified to be built by gcc-3.3. I only have removed a #if 0/#endif
  966: structure. I don't know why this code was compiled by gcc-3.3... Maybe
  967: another gcc bug...
  968: * Fri Jul 25 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7b (RPL/2)
  969: - EXIT is fixed. Now, it is possible to use EXIT in an expression when the
  970: main loop is in a program;
  971: - RPL/2 can take its arguments (and command) on the standard input. Try
  972: echo "1 2 3 + *" | rpl -i | grep "^1:" | cut -d ':' -f2
  973: - a minor bug in vim syntax file is fixed (CYCLE and EXIT intrinsics);
  974: - a minor bug is discovered in analyse_algebrique(). Now, expression
  975: such as 'A+Z AND 2' or '(A+Z) AND 2' are correctly parsed.
  976: * Mon Jun 16 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7a (RPL/2)
  977: - Major bug is fixed in evaluation subroutine. This one only occurs
  978: when an error in a user definition called by an expression is caught
  979: by an IFERR structure;
  980: - EXIT intrinsic can now be used in DO/UNTIL/END or WHILE/REPEAT/END loops;
  981: - sequenceur() is now uninterruptible with STOP signal in recherche_type()
  982: subroutine;
  983: - major bug is fixed in types.c (# xxxxxb) and recherche_instruction_suivante();
  984: - GSL exception (underflow) is now caught;
  985: - tools/Makefile.am is fixed;
  986: - Debian buildpackage script is fixed.
  987: * Tue Jun 10 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7 (RPL/2)
  988: All memory leaks issued from the pre6 beta releases seem to be fixed.
  989: Build process is improved and vim syntax file and manual pages are updated.
  990: * Mon Jun 9 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6l (RPL/2)
  991: - RCI and RCIJ intrinsic are added;
  992: - BESSEL intrinsic is added. Syntax:
  993: 3: type ("J", "K", "I", "Y", "j", "k", "i", "y")
  994: 2: order (integer or real)
  995: 1: x;
  996: - ->Q intrinsic is added;
  997: - major bug is fixed in C->R intrinsic;
  998: - ROW+ and ROW- are added and tested;
  999: - COL+ and COL- are added and tested. Syntax:
 1000: 3: matrix
 1001: 2: integer (number of column to be inserted)
 1002: 1: column matrix to be inserted;
 1003: - major bug was discovered in interface_gnuplot(). It only occurs when
 1004: the subroutine reduces the graphical depth. It is now fixed;
 1005: - Some mistakes are been fixed in vim syntax file;
 1006: - SX2, SY2 and SXY are added;
 1007: - SX and SY statistical intrinsics are added;
 1008: - DEBIAN control file is fixed;
 1009: - PAPER intrinsic is added. Supported paper formats are now : a4, a5, b5,
 1010: letter, legal, executive;
 1011: - PPAR is modified to include current graphic type.
 1012: * Sun Jun 1 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6k (RPL/2)
 1013: - SLICESCALE intrinsic is added. Its syntax is
 1014: { "automatic" nb_of_levels }
 1015: { "discrete" l1 l2 l3 ... }
 1016: { "incremental" start incr }
 1017: { "incremental" start incr end }
 1018: { "automatic" } (default);
 1019: - a minor bug (in last stack) is fixed in AXES intrinsic
 1020: - flag 52 is used to automatically update graphics;
 1021: - man pages are updated;
 1022: - evaluation() is modified to perform evaluation of expressions that contain
 1023: '=';
 1024: - a minor bug is fixed in AXES intrinsic;
 1025: - a minor bug is fixed in DRAW intrinsic (2D and 3D graphics were able to
 1026: appear on the same figure). The same mistake is fixed in DRWS intrinsic;
 1027: - LAST is disabled in evaluation subroutine (EVAL and ->NUM intrinsics).
 1028: * Sun May 18 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6j (RPL/2)
 1029: - SLICE intrinsic is added. It is used to draw 3D graphics as contour lines;
 1030: - PLOTTER is added to draw statistical clouds with lines;
 1031: - C and H source files now include vim parameters;
 1032: - vim syntax file is modified to include new intrinsics;
 1033: - static archive is modified to include all required libraries needed by
 1034: RPL/2.
 1035: * Sun May 4 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6i (RPL/2)
 1036: - '=' is added and tested;
 1037: - XCOL and YCOL are added;
 1038: - a minor bug in analyse_syntaxique() is fixed;
 1039: - THEN is modified to return an error when ELSE appears in a CASE/THEN/END
 1040: structure. ELSE is modified to return an error when ELSE appears in
 1041: an ELSE/END structure;
 1042: - a major bug is fixed in CYCLE;
 1043: - EXIT is written. When EXIT appears in a defined loop (FOR or START), the
 1044: sequencer continues after the end of this loop;
 1045: - SCLS is added;
 1046: - DRWS now uses COLS to draw 2D graphics;
 1047: - PPAR and SPAR are written. SPAR returns a list that contains the
 1048: size of the statistical matrix (or "UNAVALAIBLE" if there is any
 1049: statistical variable, or "DISABLED" if its type is not one of the type of
 1050: a statistical matrix.) and XCOL and YCOL parameters. Warning: [[]] SIZE
 1051: returns { 1 0 } and it is not a bug, because a null matrix contains _one_
 1052: null line ! Thus, [[]] STOS SPAR returns { { 1 0 } 1 2 };
 1053: - EXTERNAL intrinsic is added. Warning: by default, extern functions are
 1054: disabled. Arguments of EXTERNAL are case sensitive because the external
 1055: interface is written in C. { ext_sinus } EXTERNAL does not replace the list
 1056: of known external functions but add the new list to the last. { "all" }
 1057: EXTERNAL allows all external functions and { "none" } EXTERNAL removes all
 1058: external names of the known functions;
 1059: - mkrplso.in is modified.
 1060: * Sun Apr 20 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6h (RPL/2)
 1061: - vim syntax file is upgraded;
 1062: - a minor mistake is fixed in recherche_instruction_suivante();
 1063: - some minor memory leaks are fixed in recherche_type() function. They only
 1064: occurs when a syntax error is detected;
 1065: - #error and #warning preprocessor macros are added;
 1066: - INCR and DECR are written (with integer or variable argument);
 1067: - CSWP and RSWP are added and tested;
 1068: - a minor bug is fixed in analyse.c;
 1069: - DEBIAN/control is added to build debian package;
 1070: - SCALE is fixed and improved ("automatic" keyword);
 1071: - PUTC and PUTR new intrinsics are added.
 1072: * Sun Apr 13 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6g (RPL/2)
 1073: - a very minor bug is fixed in VISIT intrinsic. It only occurs when
 1074: VISIT does not find a name in level 1;
 1075: - configure.in script is modified to add a new test (--enable-debug
 1076: flag). Configured with this fleg, RPL/2 will be built with electric-fences;
 1077: - GETR (get row[s]) and GETC (get column[s]) are added. These new instructions
 1078: extract a part of a matrix. Syntax: [[ 1 2 3 ][ 2 3 4 ]] { 1 } GETR or
 1079: 'MATRIX' { 2 2 3 } GETR;
 1080: - LOGSCALE intrinsic is improved and now, it can be used as
 1081: { "main" "auxiliary" X Y } LOGSCALE;
 1082: - SCALE intrinsic is used to fix the limits of a graphic. Its syntax is the
 1083: same than AXES:
 1084: { { 60 "ticsonly" 2 } { "automatic" "ticsonly" 10 } } axes
 1085: { "auxiliary" { 60 "ticsonly" "default" } { "automatic" } } axes
 1086: { { -10 10 } "automatic" } SCALE.
 1087: Warning, it is not possible to ask a logarithmic scale with this intrinsic
 1088: because it changes only the dimension of the screen. To have a logarithmic
 1089: scale, you must use LOGSCALE intrinsic:
 1090: { X } LOGSCALE gives a semi-log screen, { "auxiliary" X Y } gives a log-log
 1091: screen on second scale;
 1092: - { X X } autoscale and { Y Y } logscale are now invalid;
 1093: - *D is added (depth multiplication, for 3D graphics);
 1094: - a new intrinsic (*S) is added. It changes the scale of a graphic (X, Y
 1095: and Z axes). The result of *S is the same than DUP DUP *H *W *D;
 1096: - a major bug is fixed in GETI instrinsic when it is used with a name
 1097: that contains a matrix or a vector (bad upper bounds conditions in
 1098: incrementation);
 1099: - DISP intrinsic now uses the 33-th flag. When it is not set
 1100: (default), a final carriage return is sent to the terminal;
 1101: - AXES intrinsic only takes a list that can contains the keywork
 1102: "main" or "auxiliary". Before this modification, this keyword was in
 1103: the first stack level;
 1104: - vim syntax file is upgraded;
 1105: - in appel_gnuplot(), stdin is closed when gnuplot is called with -raise
 1106: option;
 1107: - LAST is now disabled in the main loop of INT intrinsic;
 1108: - expm1 and lnp1 are rewritten to use expm1 and log1p from math.h.
 1109: * Sun Apr 6 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6f (RPL/2)
 1110: - a major bug is fixed in evaluation() subroutine. It occurs with DRAW
 1111: intrinsic when the equation cannot be evaluated (for example 'SIN(X)/X'
 1112: in 0);
 1113: - LAST is disabled in the main loop of DRAW intrinsic;
 1114: - a major bug is fixed in DRAW intrinsic. When an error occurs in the
 1115: evaluation of an equation, the system stack is returned corrupted to the
 1116: sequencer;
 1117: - the same minor bug is fixed in FOR and START. It only occurs when the limits
 1118: of a loop are not integer or real.
 1119: * Sun Mar 31 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6e (RPL/2)
 1120: - the compilation stage aborts with an error message when two definitions
 1121: have the same name. To improve the compilation() subroutine, I have to
 1122: add some tests in gestion_variables.c;
 1123: - recherche_type() subroutine ad some other connex subroutines are improved.
 1124: Now, some syntax errors about object are caught and do not perform sequencer
 1125: hangup;
 1126: - readline is upgraded (minor compilation bug with recent gcc);
 1127: - Makefile.am's and configure.in scripts are improved.
 1128: * Fri Mar 14 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6d (RPL/2)
 1129: - DRWS intrinsic is written. Two datastyles are associated: SCATTER (2D
 1130: and 3D) and HISTOGRAM (only 2D, but 3 columns are accepted, the third shown
 1131: the boxwidth, 1 by default);
 1132: - recherche_type() is rewritten to be faster;
 1133: - gsl is upgraded (release 1.3);
 1134: - ncurses is upgraded and patched (release 5.3);
 1135: - recherche_instruction_suivante() is fixed (string research with included
 1136: '"') and rewritten to be faster;
 1137: - appel_gnuplot() is fixed. When no graphic was available, it returned a
 1138: segfault.
 1139: * Sun Mar 9 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6c (RPL/2)
 1140: - RPL/2 is compiled by gcc-3.2.2 and seems to work;
 1141: - the same minor bug is fixed in REDRAW and DRAX functions;
 1142: - a minor fix is written in DRAW function (2D and 3D);
 1143: - AXES intrinsic is improved. Now { { pi "ticsonly" 4 } "automatic" } DRAX
 1144: is accepted;
 1145: - a minor bug is fixed in VISIT intrinsic.
 1146: * Sun Jan 26 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6b (RPL/2)
 1147: - a minor bug is fixed in evaluation subroutine;
 1148: - vim syntax file is improved;
 1149: - DRAW (wireframe section) is fixed. When an error occurs in the evaluation
 1150: of a 3D-graphic (for example 'SIN(R)/R' with 'R=SQRT(X**2+Y**2)' in X=0 and
 1151: Y=0), no graph was procuced (it results from a bug in gnuplot, and this fix
 1152: is a quick and dirty workaround...);
 1153: - RETURN intrinsic is modified to fix a trouble in interactive mode;
 1154: - rplconvert is improved.
 1155: * Sun Dec 22 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6a (RPL/2)
 1156: - a memory leak is fixed in formateur.c that only occurs when RPL/2 try
 1157: to print a list that contains a name;
 1158: - a major bug is fixed in -> intrinsic that only occurs in evaluation case with
 1159: a algebraic expression (<< 1 -> X 'X+1' >> eval);
 1160: - vim syntax file is improved;
 1161: - RPL/2 can now be built by gcc 3.2.1;
 1162: - "**" can be used in algebraic expression;
 1163: - DRAW can now plot wireframe (3D) graphics.
 1164: * Sun Dec 8 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6 (RPL/2)
 1165: - ncurses is patched to be compiled by gcc 3.2;
 1166: - purification_chaine is rewritten to fix a major bug (when 'chaine' is empty);
 1167: - a major bug is fixed in recherche_instruction_suivante();
 1168: - minor bug is fixed in rpl-core file. The error message is now correctly
 1169: written;
 1170: - minor bug is fixed in analyse_notation_algebrique.c and types.c.
 1171: Now, an expression such as 'A+' returns an error when it is analyzed;
 1172: - VISIT intrinsic is added;
 1173: - a major memory leak is fixed in evaluation.c. This bug rarely occurs in
 1174: normal mode.
 1175: * Sun Aug 25 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5e (RPL/2)
 1176: - an EDIT intrinsic is added;
 1177: - PRMD intrinsic returns french or english messages;
 1178: - rpl-core now call LAST intrinsic if the last stack is avalaible. It
 1179: contains the error message too;
 1180: - new syntax, ftplugin and indent files are written for vim text editor;
 1181: - major bug is found and fixed in RCL intrinsic;
 1182: - major bug is found and fixed in OR intrinsic.
 1183: * Mon Jul 29 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5d (RPL/2)
 1184: - ncurses is updated;
 1185: - minor bug is fixed on PURGE instruction (an error no caught was
 1186: returned in interactive mode).
 1187: * Mon Jul 21 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5c (RPL/2)
 1188: - ASL (arithm. shift left) is added.
 1189: * Thu Jul 11 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5b (RPL/2)
 1190: - ncurses is patched;
 1191: - gsl is added to perform arithmetic operations;
 1192: - units is patched;
 1193: - some very minor bugs have been fixed.
 1194: * Wed May 15 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5a (RPL/2)
 1195: - ncurses is patched;
 1196: - RPL/2 can now be built by gcc 3.1;
 1197: - RDZ is fixed (minor bug).
 1198: * Sun Apr 21 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5 (RPL/2)
 1199: - RPL/2 can now be called from other languages (librpl libraries).
 1200: * Sun Mar 24 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4h (RPL/2)
 1201: - ERRN and ERRM can now be used with errors returned by external functions;
 1202: - readline and ncurses have been updated;
 1203: - no more bugs have been reported since the rpl-4.00pre4g release.
 1204: * Wed Feb 20 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4g (RPL/2)
 1205: - ERRN and ERRM intrinsic functions are written. They return the last
 1206: error number or message even if errors are caught by an IFERR structure;
 1207: - a minor bug is fixed in EPSILON intrinsic. Now, 'EPSILON(0)' returns
 1208: a non null value;
 1209: - Ncurses is updated.
 1210: * Mon Feb 18 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4f (RPL/2)
 1211: Arithmetic intrinsic instructions (- +, -, *, / and **) are improved :
 1212: 'X' 0 + and 0 'X' + return 'X';
 1213: 'X' 0 - returns 'X';
 1214: 'X' 1 * and 1 'X' * return 'X';
 1215: 'X' 0 * and 0 'X' * returns 0; 
 1216: 'X' 1 / returns 'X';
 1217: 'X' 1 ** returns 'X';
 1218: 'NEG(X)' NEG returns 'X';
 1219: - autoconf/automake scripts are improved: now, the size of the different types
 1220: found by configure are used in rpltypes.h (rplconfig.h is written by configure);
 1221: - rdynamic flag is added in src/Makefile.am. This flag is used in the first
 1222: makefile, but forgotten in the new process;
 1223: - Flag 31 is tested before saving any arguments in bibliotheques_externes.c;
 1224: - POS can now be used on lists;
 1225: - ELSILON is written. This function returns the smallest real e(x) such as
 1226: e+abs(x) != abs(x).
 1227: * Mon Feb 11 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4e (RPL/2)
 1228: - now, INT intrinsic function can be interrupted;
 1229: - precision of sommation_vecteur_xxx() subroutines is improved;
 1230: - new vim syntax file written for vim 6.0.
 1231: * Mon Feb 04 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4d (RPL/2)
 1232: - explicit error messages are now printed when the RPL/2 is used in
 1233: interactive mode;
 1234: - major bug is fixed in OPEN intrinsic: with 'REPLACE' status, file lock was
 1235: tested after the file is opened, thus, when the file was locked, it was
 1236: deleted too!;
 1237: - configure script is improved (and it seems to be good ;-) );
 1238: - An --disable-experimental flag is added to the configure script. Thus, even
 1239: if you compile a beta release, you can compile a stable RPL/2;
 1240: - new syntax and ftplugin written for vim 6.0.
 1241: * Wed Jan 30 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4c (RPL/2)
 1242: - configure script is improved.
 1243: * Sun Jan 27 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4b (RPL/2)
 1244: - ncurses now replaces termcap;
 1245: - Côme DESPLATS has written a configure script.
 1246: * Fri Jan 18 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4a (RPL/2)
 1247: - KIND is added and returns the type of the numerical argument ;
 1248: - history file is added.
 1249: * Tue Jan 15 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4 (RPL/2)
 1250: - Stable release. Unformatted files are disabled in this release.
 1251: * Mon Jan 14 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3h (RPL/2)
 1252: - SIGTSTP (CTRL+Z) is added. In a script, a SIGTSTP signal signifies
 1253: that the RPL/2 seqencer must stop and must give a prompt. This
 1254: signal is an asynchonous "HALT" command;
 1255: - SIGINT (CTRL+C) variables stack corruption is fixed;
 1256: - IFERR seems to be fixed (in equation evaluation routine);
 1257: - Memory leak is fixed (ADR object type);
 1258: - DATE returns both date and hours;
 1259: - TIME now returns user and system CPU times;
 1260: - MEM is added.
 1261: * Thu Jan 10 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3g (RPL/2)
 1262: - Makefile is improved to support sparc v7 (sun4c), sparc v8 (sun4m) and
 1263: sparc v9 (sun4u). Now, RPL/2 can be built on i386 (i486 is known as i386),
 1264: i586, i686, K6, K7, alpha ev4, alpha ev5, alpha ev56, alpha ev6, sparc v7,
 1265: sparc v8 and sparc v9. Compilation of RPL/2 on my Sun Sparc 2 (sun4c,
 1266: CPU 4/75, 64 MB, 40 MHz with FPU) is a very great mission :
 1267: 
 1268: Newton:[~/rpl/rpl] > time make install
 1269: ...
 1270: real    338m39.623s
 1271: user    324m32.290s
 1272: sys     10m47.380s
 1273: Newton:[~/rpl/rpl] >
 1274: 
 1275: I don't know if you will compile this language on old worstations, but
 1276: it is usable ;-) ;
 1277: - SYSEVAL is improved. An external program can be called without any shell.
 1278: Thus, even if the sticky bit is set, RPL/2 can not give a shell root when
 1279: a SYSEVAL command crashes;
 1280: - minor bug is fixed in recherche_type() (# xxxxb parsing);
 1281: - presence of bootstrap entry point is verified before launching the
 1282: sequencer;
 1283: - minor bug is fixed in formateur_tex() (underscore in mathematical
 1284: expression);
 1285: - Lapack is updated.
 1286: * Thu Jan 3 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3f (RPL/2)
 1287: - IFERR is now known in an expression, but not usable.
 1288: * Mon Dec 31 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3e (RPL/2)
 1289: - several bugs are fixed.
 1290: * Mon Dec 17 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3d (RPL/2)
 1291: - major bugfix in file locking.
 1292: * Fri Dec 14 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3c (RPL/2)
 1293: - minor fixes is system() call.
 1294: * Fri Nov 30 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3b (RPL/2)
 1295: - automatic limitation of the graphical depth due to a limitation (bug ?)
 1296: of gnuplot.
 1297: * Mon Nov 19 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3a (RPL/2)
 1298: - new file temp management.
 1299: * Sun Nov 18 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3 (RPL/2)
 1300: - memory leak is fixed in STO instruction;
 1301: - minor bug in file management is fixed;
 1302: - BACKSPACE is added;
 1303: - VARS is added;
 1304: - file locks are improved.
 1305: * Wed Nov 14 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2l (RPL/2)
 1306: - major bug is fixed (on sparc architecture) and RPL/2 can now run
 1307: on sparc stations;
 1308: - INDEP and DEPND are improved;
 1309: - AXES is added;
 1310: - WRITE, APPEND and REWIND are added.
 1311: * Sun Nov 11 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2k (RPL/2)
 1312: - write is improved ;
 1313: - major bug is found and fixed in copie_objet() with struct_fichier;
 1314: - minor bug is fixed in OPEN function;
 1315: - minor bug is fixed in analyse_syntaxique() subroutine. All commands
 1316: are analysed before starting their executions.
 1317: * Thu Nov 8 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2j (RPL/2)
 1318: - minor bug is fixed in appel_gnuplot();
 1319: - RPL/2 can work without LANG variable.
 1320: * Wed Oct 31 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2i (RPL/2)
 1321: - WAIT function is improved (removing the polling function);
 1322: - LAST stack is not active (default) when rpl is called without the option -i.
 1323: In all other cases, LAST stack is active;
 1324: - Labels can be added on a gnuplot output (function LABEL);
 1325: - LCD-> and ->LCD are added.
 1326: * Sun Oct 21 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2h (RPL/2)
 1327: - minor bug is fixed in TeX output (pi);
 1328: - new english manual is added.
 1329: * Wed Oct 16 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2g (RPL/2)
 1330: - LOCK, WFLOCK and UNLOCK are added. A file is locked when it is opened;
 1331: - VERSION function is added. It returns the version number of the interpreter;
 1332: - minor bug is fixed in evaluation subroutine;
 1333: - english error messages are been fixed.
 1334: * Tue Oct 09 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2f (RPL/2)
 1335: - interrupt subroutine is added;
 1336: - formatted files support is continued.
 1337: * Sun Sep 30 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2e (RPL/2)
 1338: - formateur_fichier.c is added to perform formatted files write.
 1339: * Thu Sep 27 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2d (RPL/2)
 1340: - minors bugfixes in FIX format in formateur_reel() subroutine;
 1341: - new manual page in english;
 1342: - FORMAT intrinsic is added and can read any format for "formatted" file.
 1343: * Sun Sep 23 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2c (RPL/2)
 1344: - OPEN, CLOSE, SYNC, INQUIRE, CREATE and DELETE are tested;
 1345: - a man page in the first manual section is written.
 1346: * Thu Sep 20 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2b (RPL/2)
 1347: - major bugfixes in recherche_type() subroutine: sometimes in interactive mode,
 1348: this routine was be able to forget the last element of a list, a vector or
 1349: a matrix.
 1350: * Mon Sep 17 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2a (RPL/2)
 1351: - OPEN, CLOSE and DELETE are known by the language but not very usable;
 1352: - minor bugfixes in evaluation routine.
 1353: * Sun Sep 16 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2 (RPL/2)
 1354: - major bugfixes in evaluation routine.
 1355: * Sat Sep 15 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1d (RPL/2)
 1356: - conditional structures can be used in equations.
 1357: * Fri Sep 14 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1c (RPL/2)
 1358: - Minor bugfixes in makefile.
 1359: * Sat Sep  8 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1b (RPL/2)
 1360: - CONVERT is written;
 1361: - CYCLE, FOR/NEXT, FOR/STEP, START/NEXT, START/STEP, DO/UNTIL/END and
 1362: WHILE/REPEAT/END can now be used in an equation;
 1363: - I fix some troubles with evaluation subroutine;
 1364: - db3 library is added.
 1365: * Thu Sep  6 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1a (RPL/2)
 1366: - add rplconvert and rplunits sources;
 1367: - add CONVERT definition (but it does not work).
 1368: * Mon Sep  3 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1 (RPL/2)
 1369: - initial public release (GPL).
 1370: * Thu Apr  2 1998 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre0 (RPL/2)
 1371: - RPL is rewritten from scratch and named RPL/2.
 1372: #* 1992 BERTRAND Joël rpl-3.02 (RPL-387)
 1373: #- minor bugfixes.
 1374: #* 1991 BERTRAND Joël rpl-3.01 (RPL-387)
 1375: #- arithmetic processor support is added to improve global performances.
 1376: #* 1991 BERTRAND Joël rpl-3.00 (RPL-386)
 1377: #- idem... but on an i386DX...
 1378: #* 1990 BERTRAND Joël rpl-2 (RPL-6809)
 1379: #- a new release on a more powerfull processor and with new functions and an
 1380: #built-in editor. It has been written on a SMT-Goupil G3-6809 running
 1381: #Flex9 (320 KB of RAM and a graphic card used to draw 512*256 graphics in
 1382: #8 colors)
 1383: #* 1989 BERTRAND Joël rpl-1 (RPL-6502)
 1384: #- initial release (only an historic interest) written on an ORIC Atmos 48K.
 1385: #No graphic was provided.

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