File:  [local] / rpl / ChangeLog
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Wed May 5 08:40:51 2010 UTC (10 years ago) by bertrand
Branches: MAIN
CVS tags: HEAD
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    1: * Wed Apr 21 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.15 (RPL/2)
    2: - major bug is fixed in ROW+ intrinsic (new row was not added where it
    3: should);
    4: - minor bugs are fixed in interruptions.c (semaphores values when error is
    5: caught);
    6: - major bug is fixed in STOP intrinsic. STOP was unable to stop any process
    7: created by SPAWN;
    8: - SIGFABORT is added. When process receives SIGFSTOP, it tries to execute
    9: ATEXIT. If it receives SIGFABORT, it does not;
   10: - ONEXIT is renamed in ATEXIT;
   11: - ONEXIT new intrinsic is added.
   12: * Wed Apr 21 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.14 (RPL/2)
   13: - major bug is fixed in static and shared variables initialization subroutine.
   14: This bug only occurs when RPL/2 tries to create a shared or static variable
   15: from an expression;
   16: - major bug is fixed in copie_etat_processus(). A field that contains
   17: information about shared variable was not copied to new processus structure;
   18: - some little memory leaks are fixed in evaluation(), recherche_type() and
   19: sequenceur(). They only occured when syntax error were caught;
   20: - IMPLICIT causes execution error instead system error;
   21: - Hurd support is improved but currently broken because Hurd does not support
   22: SIG_INFO. Work in progress;
   23: - OpenBSD specific support is removed from sources;
   24: - support for Mac OS X and Windows/Cygwin is added.
   25: * Wed Apr 07 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.13 (RPL/2)
   26: - implicit names can now be disabled by new IMPLICIT intrinsic:
   27: cauchy:[~/cvs/test] > cat implicit.rpl
   28: #!/usr/local/bin/rpl -sp
   29: TEST
   30: <<
   31:     "none" implicit
   32: 
   33:     1 -> Z
   34:     <<
   35:         Z disp
   36:         'Z' disp
   37:     >>
   38: 
   39:     'Z' disp
   40:     Z disp // Undefined
   41: >>
   42: 
   43: cauchy:[~/cvs/test] > LANG=C ./implicit.rpl
   44: +++RPL/2 (R) version 4.0.13 (Wednesday 04/07/10, 13:57:44 CEST)
   45: +++Copyright (C) 1989 to 2009, 2010 BERTRAND Joel
   46: 1
   47: 'Z'
   48: 'Z'
   49: +++System : Invalid implicit name [6631]
   50: cauchy:[~/cvs/test] > 
   51: 
   52: RPL/2 aborts because the last Z is undefined and not protected by ''.
   53: By default, implicit is set to "ALL";
   54: - sqlite is upgraded to 3.6.23.1;
   55: - openssl is upgraded to 1.0.0;
   56: - major bug is fixed in RETURN intrinsic. It only occurs in evaluation
   57: subroutine;
   58: - table variable can now be sorted by SORT;
   59: - some regressions between libtool 1.x and 2.x are fixed by workarouds in
   60: Makefiles;
   61: - -a command line option analyzes program (structure and syntax) and
   62: sends preprocessor output to standard output. This option is used by
   63: rplc (RPL/2 compiler).
   64: * Tue Mar 09 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.12 (RPL/2)
   65: - in formatted file, string format returned a variable length string even if
   66: format was 'CHARACTER*(n)' (n characters string). Now, 'CHARACTER*(*)' returns
   67: a variable length string and 'CHARACTER*(n)' a fixed length string;
   68: - keyed access files support is added. Currently, only formatted files are
   69: supported;
   70: - direct access files support is added. Currenlty, these files can only be used
   71: in formatted mode;
   72: - virtual variables are now writte in UTF-8 and all special characters
   73: in string are escaped;
   74: - all formatted files are now converted into UTF-8;
   75: - all file and unix socket names created by RPL/2 are now UTF-8 compliant;
   76: - RPL/2 tools (rpliconv, rplfile, rplpp and rplconvert) are now checked before
   77: each execution (md5 and sha1 sums) to enhance security. If one of these tools
   78: have been modified between RPL/2 compilation and current execution, RPL/2 aborts
   79: on a non recoverable system error;
   80: - openssl and sqlite3 libraries are added;
   81: - RPL_HOME env variable is added. When RPL/2 is called from librpl, this
   82: variable indicates RPL/2 root directory. If it is not set, root path
   83: is given by configure script (d_exec_path);
   84: * Thu Mar 03 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.11 (RPL/2)
   85: - configure.in and makefile.am's are modified to add Cygwin support. Interix
   86: support is broken;
   87: - memory leak is fixed in recherche_type();
   88: - TeX files are now written in UTF-8 even default locale differs;
   89: - minor bug is fixed in ->STR (escaped characters);
   90: - minor bug is fixed in ->Q intrinsic. Resultat is returned as integer
   91: fraction intead real one;
   92: - SIGN now returns (0,0) instead (nan,nan) when complex argument is null;
   93: - Makefile.am are modified to authorize parallel builds;
   94: - minor bug is fixed in CR intrinsic. CR sends a carriage return to printer
   95: and writes warning to standard output;
   96: * Wed Feb 10 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.10 (RPL/2)
   97: - escape codes are now converted in formateur(), not in recherche_type() to
   98: avoid a minor bug in EDIT and VISIT intrinsics;
   99: - minor bug is fixed in formateur_reel();
  100: - file-5.03 is patched to avoid bus error on systems that require memory
  101: alignment;
  102: - minor bug is fixed in evaluation(). Error returned by RPL/C external functions
  103: were able to be avoided by evaluation routine.
  104: * Tue Jan 26 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.9 (RPL/2)
  105: - New benchmark on same hardware than old one :
  106: cauchy:[~/rpl/bench] > ./bench.rpl 
  107: +++RPL/2 (R) version 4.0.9 (samedi 23/01/2010, 18:06:08 CET)
  108: +++Copyright (C) 1989 ŗ 2009, 2010 BERTRAND JoŽl
  109: Number of scalar operations per second and per core : 2383016
  110: 
  111: - PULPRFL does not abort on BUG() but on execution error;
  112: - TRIM, REPL and TOKENIZE are added;
  113: - sockets options are now set before bind();
  114: - shutdown() is added to all connected sockets;
  115: - minor bug is fixed in SUB intrinsic (segfault when SUB is called with
  116: list argument and inexistant elements).
  117: * Fri Jan 08 2010 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.8 (RPL/2)
  118: - minor bug is fixed in DAEMON intrinsic. When a program was daemonized, all
  119: signals sent to main process were not caught because DAEMON did not replace
  120: old pid by new one;
  121: - major bug is fixed in IFERR/THEN/ELSE/END. Only occurs in expression
  122: evaluation when an error is reported from a subroutine in another subroutine.
  123: For example, error was not caught in following program when it is executed with
  124: -p option :
  125:     TEST << iferr TEST2 then end >>
  126:     TEST2 << 0 inv >>
  127: - major bug is fixed in variable management. Some local variables were
  128: seen as global ones;
  129: - major bug is fixed in rplcore. Rplcore entered in dead lock when
  130: script file contains a multibyte character;
  131: - IN intrinsic is added;
  132: - major bug is fixed in SAME intrinsic : << 1 >> DUP SAME and 'E' DUP SAME
  133: returned false ;
  134: - major bug is fixed in RETURN intrinsic. It only occurs in compiled
  135: programs;
  136: - major bug is fixed in NEG intrinsic. NEG did not make a copy of its arguments;
  137: - regression is fixed in compilation(). "\\" was analysed as '"' '\' '\"' and
  138: strings were never closed;
  139: - some bugs have been fixed in file management;
  140: - RPL/2 can now be run on EBCDIC systems (OS/390);
  141: - major bug is fixed in -A command line option (NULL character is missing);
  142: - minor bug is fixed in rpliconv and RECODE intrinsic. All transliterations are
  143: made by blocks (1024 bytes). When an incomplete multibyte sequence is
  144: encountered at end of block, subroutine aborts with an execution error;
  145: - major bug is fixed in OPEN (TCP/IPv4 sockets).
  146: * Mon Nov 30 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.7 (RPL/2)
  147: - DISP now locks stdout;
  148: - rpliconv is added to replace standard iconv provided by operating system.
  149: Indeed, conversion between different encodages requires transliteration
  150: that is not offered by some iconv utility;
  151: - CURRENC and RECODE intrinsics have been written to allow strings conversions;
  152: - bug is fixed in SYSEVAL. When execvp() returns (for example when arg[0] can
  153: not be found), SYSEVAL enters in a dead lock;
  154: - fprintf is replaced by some functions that allow transliterations between
  155: locales;
  156: - '"' can now be used in strings ("\"");
  157: - iconv is called with -c in preprocessor stage. It is done to write
  158: CGI scripts with RPL/2 because locale charset is set to ANSI_X3.4-1968;
  159: - double free is fixed in liberation() (type SQL, only occurs when locale is
  160: set);
  161: - LOCALIZATION, UCASE and LCASE are added;
  162: - major bug is fixed in EXIT intrinsic that was able to return a false
  163: execution error in compiled scripts (only in DO/UNTIL and REPEAT/WHILE loops);
  164: - major bug is fixed in wrapper_instruction_intrinseque(). When intrinsic() was
  165: used in onLoading from shared library, USE was pushed on stack as algebraic
  166: expression;
  167: - libiconv is upgraded to 1.13.1;
  168: - gnuplot is upgraded to 4.2.6;
  169: - gsl is upgraded to 1.13.
  170: * Mon Sep 28 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.6 (RPL/2)
  171: - pipe() is overwritten by a macro to avoid a system error. Communication
  172: between process are done with pipes and these pipes are managed by a
  173: specific asynchrone thread. If a script try to create more threads than
  174: management thread can destroy, you can quickly achieve maximum number of
  175: opened files and pipe() shall return a system error. This macro tries to create
  176: pipes. If pipe() function returns an error, macro waits and retries. If
  177: number of retries is greater than a hardcoded value, macro returns an error;
  178: - major bug (deadlock) is fixed in process and thread management. I hope
  179: this bug shall be the last one;
  180: - major bug is fixed in DET intrinsic (determinant was computed without LU
  181: diagonalization);
  182: - SWAPCNTXT is added;
  183: - minor bug is fixed in Makefile.am (licences rule).
  184: * Wed Sep 09 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.5 (RPL/2)
  185: - some bugfixes are added in process management;
  186: - all process management is rewritten to avoid usage of defunct process
  187: or thread number;
  188: - new major bug is fixed in interruptions.c. Sometimes, when retrait_thread()
  189: was called before a pending interruption5 (SIGFSTOP), signal handler uses
  190: a freed semaphore and corrupts heap;
  191: - CLRERR is added to erase previous errors;
  192: - ERRN and ERRM return exception message and number;
  193: - major bug is fixed in interruptions.c. All signal are now bufferised
  194: when semaphore_liste_threads is null to avoid deadlock. This bug only
  195: occured when STOP was sent to a dying thread or process (when this thread or
  196: process was running retrait_thread());
  197: - matrix rank is computed before matrix inversion;
  198: - file locks are added to stdin and stdout. stderr is not locked because
  199: all messages written by signal handlers are sent to stderr;
  200: - configure.in script is modified to test gcc version and avoid a bug in
  201: gcc older than 4.4;
  202: - some benchmarks have been done :
  203: 
  204: cauchy:[~/rpl/bench] > ./bench.rpl 
  205: +++RPL/2 (R) version 4.0.5 (mardi 04/08/2009, 18:23:07 CEST)
  206: +++Copyright (C) 1989 ŗ 2008, 2009 BERTRAND JoŽl
  207: Number of scalar operations per second and per core : 2109867
  208: 
  209: Workstation :
  210: cauchy:[~/rpl/build] > uname -a
  211: Linux cauchy 2.6.30.1 #1 SMP PREEMPT Thu Jul 16 09:49:46 2009 x86_64 GNU/Linux
  212: cauchy:[~/rpl/build] > cat /proc/cpuinfo | grep "model name"
  213: model name      : Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz
  214: model name      : Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz
  215: cauchy:[~/rpl/build] > gfortran -v 2>&1 | grep "gcc version"
  216: gcc version 4.3.3 (Debian 4.3.3-14) 
  217: cauchy:[~/rpl/build] >
  218: 
  219: - SVL and SVD are added;
  220: - COND and RANK are added;
  221: - DIAG-> and ->DIAG are added;
  222: - major bug is fixed in DET intrinsic. DET is rewritten to avoid usage of
  223: eigenvalues. In a first time, matrix rank is estimated to force determinant
  224: to zero if matrix is rank deficient. If not, a PLU decomposition is done to
  225: compute determinant;
  226: - QR matrix decomposition is added;
  227: - LQ matrix decomposition is added;
  228: - Fortran90 files are rewritten to use Fortran2003 bind(C) statement and
  229: Fortran preprocessor;
  230: - default compilation options are now -Wall -Wextra -Wno-pointer-sign
  231: -Wno-unused-parameter;
  232: - all mathematical exceptions are now signaled by exceptions instead of
  233: execution error;
  234: - minor bug is fixed in both CSTOP and RSTOP intrinsics. Without this fix, you
  235: can call twice CSTOP without RSTOP;
  236: - named semaphore support is added (CRSMPHR, CLRSMPHR, SMHRDECR, SMPHRINCR,
  237: SMPHRTRYDECR, SMPHGETV).
  238: * Fri Jul 24 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.4 (RPL/2)
  239: - semaphore is added in interruptions.c to avoid segmentation fault when STOP
  240: signal is sent to a dying thread. Some mutexes are replaced by semaphores too
  241: to be used in signal handlers;
  242: - major bug (memory corruption) is fixed in COL- intrinsic;
  243: - minor bug is fixed in ALARM and WAIT. These temporisations stopped when a
  244: software interrupt was caught;
  245: - rplpp man page is added.
  246: * Fri Jul 17 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.3 (RPL/2)
  247: - minor bug is fixed in WRITE (SIGPIPE is ignored to catch error without
  248: process termination);
  249: - major bug is fixed in FUSE intrinsic (FUSE kills itself and do not kill
  250: its parent);
  251: - a mutex to protect fork() syscall is added;
  252: - all mutexes are unlocked after fork() in DETACH;
  253: - minor bug (double free corruption) is fixed in CLOSE intrinsic;
  254: - major bug is fixed in lecture_pipe when a nullified list is sent into a pipe;
  255: - WORKDIR intrinsic is added;
  256: - Level 0 variables are shared between all threads without copy. Indeed,
  257: there variables are not modifiable and only contains static user definitions;
  258: - branches prediction is added in THEN, ELSE, ELSEIF and REPEAT intrinsics;
  259: - FORTRAN 77 file management subroutines are rewritten in pure C due to
  260: FORTRAN string management. C/FORTRAN 77 string interfaces are broken
  261: in some cases (gcc/gfortran/libc/OS and arch conjonction);
  262: - a memory leak is fixed in REMOVE intrinsic;
  263: - major bug is fixed in MySQL driver (segfault due to a bug in mysql_init()
  264: and due to a libmysqlclient that is not thread safe).
  265: * Wen Jun 10 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.2 (RPL/2)
  266: - new enhanced allocator is written for regular variables, static variables and
  267: shared variables;
  268: - major bug is fixed in src/interruptions.c. This file did not compile
  269: when SQL support was not enabled;
  270: - new allocator is written for system stack and last stack;
  271: - --enable-profile flag is added to configure script. When this flag is
  272: enabled, rpl is built with -pg option;
  273: - SIGFSTP (from Solaris'TERMIO) is caught. On Solaris 10, all process receive
  274: SIGFSTP (with a nullified siginfo structure) instead of SIGHUP when control
  275: process is killed;
  276: - abs() macro is modified to avoid multiple evaluation. Your C compiler has to
  277: know typeof() intrinsic function. This function is not standard but exists
  278: under Sun Studio, gcc, and maybe some others compilers. If this function does
  279: not exist on your compiler, you can change its definition by old one in
  280: src/rpl.h;
  281: - fflush() can now be interrupted by signal (SunOS);
  282: - fflush(NULL) is called before all fork() occurrences;
  283: - generators returned by RDGN help are sorted;
  284: - Lapack is now 3.2.1.
  285: * Mon May 18 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.1 (RPL/2)
  286: - bug is fixed in src/generateurs_aleatoires.awk. It only occurs when RPL/2 is
  287: built under Solaris.
  288: * Wed May 5 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0 (RPL/2)
  289: - major bug is fixed in matrix inversion (due to an inversion between pointer
  290: and object copies);
  291: - RDGN is added to use some different random number generators. See HELP RDGN;
  292: - code analysis is rewritten from scratch to be more efficient and mode
  293: expandable;
  294: - minor bug (segfault in interruption1) is fixed. It only occurs on Solaris
  295: that can returns a nullified siginfo pointer when SIGINT is sent by kernel
  296: keyboard driver;
  297: - gnuplot is now 4.2.5;
  298: - readline is upgraded to 6.0;
  299: - file is upgraded to 5.0;
  300: - Signal handlers are rewritten to send signal to main thread when a signal
  301: is send from an external process;
  302: - configure.in is modified to avoid a libc bug on Solaris (free() can enter in
  303: deadlock when a huge amount of threads is launched);
  304: - minor bug is fixed in boath START and FOR intrinsic. Only occurs when
  305: arguments types are unsupported;
  306: - PLOT instrinsic is added (usage: LINE and MARK do not draw anything. All
  307: data are buffered. PLOT is used to draw these objects.);
  308: - MARK instrinsic is added;
  309: - new allocator mechanism is written;
  310: - some regression bugs have been fixed, some memory leaks too.
  311: * Wed Jan 28 2009 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.9 (RPL/2)
  312: - an estimation of future stack elements is added to avoid some costly memory
  313: allocations. This function has a positive impact on execution speed;
  314: - PSHPRFL and PULPRFL have been added;
  315: - RPL/2 can be built on Solaris 64 bits with some minor scripts alterations.
  316: See README for more explanations;
  317: - MTXSTATUS intrinsic is added;
  318: - YIELD intrinsic is added;
  319: - ERRM is fixed. In some cases, ERRM uses some uninitialized pointers;
  320: - SHARED and PRIVATE intrinsics have been added. A shared variable is a
  321: static variable that is shared by multiple threads;
  322: - '->' intrinsic is improved. All object copies have been avoided;
  323: - -n flag is added to catch HUP signal. stderr and stdout are redirected
  324: to a file, stdin is redirected to /dev/null when control process is killed;
  325: - a mutex is added to each object (before this modification,
  326: RPL/2 used a global mutex and performances in multithreaded programs were very
  327: poor.);
  328: - ALARM is now interruptible;
  329: - both PUT and PUTI intrinsics are improved and do not copy list and table
  330: when nombre_occurrences == 1;
  331: - COPY intrinsic is added. Argument (that can be pointed from some objects)
  332: is replaced by a new copy of itself;
  333: - memory leak is fixed in sequenceur(). It only occurs when an execution error
  334: is caught from interactive mode;
  335: - mutexes have been added (CRMTX, CLRMTX, MTXLOCK, MTXUNLOCK);
  336: - new mutex type is added;
  337: - profile statistics have been added. See -P option;
  338: - major bug is fixed in analyse_syntaxique();
  339: - new SQL type is added;
  340: - due to a trouble in libpq in multithreaded context, SQL intrinsic is split
  341: in three new intrinsics : SQLCONNECT, SQLQUERY and SQLDISCONNECT. Please note
  342: that all programs that worked with old SQL intrinsic can now work with
  343: SQLQUERY. With all new programs, you can open a real connection to databases;
  344: - NRPROC is added. This new intrinsic is used to catch error from child
  345: process. Without NRPROC, any errors returned by child process cause
  346: main process to abort;
  347: - SPAWN is added. This new intrinsic is used to launch a new thread (DETACH
  348: starts a new process). There are no mutexes in RPL/2 because all spawned process
  349: use specific context. Nevertheless, shared variables and associated mutexes
  350: should be added;
  351: - -D flag and DAEMONIZE intrinsic have been added;
  352: - REPEAT, THEN, ELSE and ELSEIF intrinsics are rewritten to be more efficient;
  353: - autoconf script is modified to handle mysql and postgresql on non standard
  354: directories;
  355: - -t flag is fixed ('\0' is missing...);
  356: - SWI and SEND pipes have been modified to be more robust on systems where
  357: getpid() can return (pid_t) -1 or (pid_t) -2 value;
  358: - major bug is fixed in REPEAT intrinsic. Only occurs in compiled mode;
  359: - all but jump variables are removed from source. All signal handlers now
  360: use encapsulated variables and signals are caught by thread;
  361: - major bug is discovered in ->LCD. Both LCD-> and ->LCD have been fixed;
  362: - NEWPLANE is added;
  363: - LINE is added;
  364: - DGTIZ is added;
  365: - major bug is fixed in ROW-> intrinsic (comes from new garbage collector);
  366: - lot of multiprocessing related bugs have been fixed; That was a huge work but
  367: it's done. Data integrity is now respected during transmission (POKE, SEND and
  368: SWI);
  369: - ITRACE is added. This intrinsic is only used to debug internal structures and
  370: should not be used in regular programs;
  371: - SWISTATUS is written;
  372: - WFACK is written;
  373: - rplcore files are now able to handle compilation errors;
  374: - rplcore files are now able to handle evaluation and interruption errors;
  375: - SORT can now be used on table;
  376: - tables can now be sent by POKE and SEND instrinsics;
  377: - software interrupts do not inherit IFERR controls;
  378: - LOGGER intrinsic is added;
  379: - All WF* intrinsics but WFSOCK are made interruptible;
  380: - ISWI intrinsic is added. Current interrupt is marked as 'interruptible';
  381: - tables can be used with SAME intrinsic;
  382: - minor bug is fixed in recherche_variable(). Only occurs when an error
  383: is caught;
  384: - external functions can now be used in expressions;
  385: - major bug (deadlock) is fixed in WFPOKE intrinsic;
  386: - some mistakes have been fixed under Solaris;
  387: - major bug is fixed in RETURN intrinsic (only occurs when evaluation and
  388: program modes are mixed);
  389: - major bug (dead lock) is fixed in gestion_processus.c;
  390: - major bug is fixed in WFPROC;
  391: - rplc, rpllink and mkrplso manpages are added;
  392: - rpltags tool and manpage are added;
  393: - WFLOCK is fixed;
  394: - RPL/2 kills now all process on error;
  395: - major bug (segfault) is fixed in REMOVE intrinsic.
  396: * Mon Jul 28 2008 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.8 (RPL/2)
  397: - configure script is modified to check mysql and postgresql libraries
  398: on all standard locations. Tested and works on FreeBSD, Solaris and Linux
  399: Debian;
  400: - Tables are allowed in eval ( <[ 1 ]> 't' sto 't(1)' eval );
  401: - ->TABLE and TABLE-> intrinsics are added;
  402: - major bug is fixed in recherche_type(). Only occurs when rpl executes
  403: precompiled scripts;
  404: - new type is added: table with <[ ]> delimiters:
  405: RPL/2> { 2 3 2 } crtab
  406: 
  407: 1: <[ <[ <[ { }
  408:             { } ]>
  409:          <[ { }
  410:             { } ]>
  411:          <[ { }
  412:             { } ]> ]>
  413:       <[ <[ { }
  414:             { } ]>
  415:          <[ { }
  416:             { } ]>
  417:          <[ { }
  418:             { } ]> ]> ]>
  419: 
  420: CRTAB new intrinsic creates a regular table. By default, all elements are
  421: nullified lists;
  422: - rplexternals.h is modified and improved;
  423: - GNU File (renamed as rplfile) cannot be built due to a bug in libtoolize and
  424: configure script.
  425: * Mon Jun 23 2008 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.7 (RPL/2)
  426: - libiconv is added (iconv library exists on some systems but implemantations
  427: differ and RPL/2 can crash);
  428: - --enable-encoding is added to configure script to force system encoding.
  429: Enconding detection does not work on OpenBSD;
  430: - internal file utility is shipped and used to avoid xBSD file mistakes;
  431: - GSL 1.11 and gnuplot 4.2.3 are now used;
  432: - src/Makefile.am is modified to built RPL/2 ons Solaris 10/sparc;
  433: - all but user's messages are written on stderr;
  434: - DUPCNTXT and DROPCNTXT are added to handle more efficiently contexts;
  435: - SCHED is added. Whit SCHED, you can limit CPU ressource by RPL/2 process;
  436: - FUSE, RFUSE and CLRFUSE have been added;
  437: - new bug discovered on NetBSD. sigpending() does not return any signal, thus
  438: DETACH intrinsic enters in a definitive dead lock. I have no idea to write a
  439: workaround for this major bug. Nevertheless, all others capabilities seems to
  440: work fine;
  441: - '->' is modified to return error when program tries to initialiaze two
  442: variables with the same name like
  443: 1 0 -> I I << ... >>;
  444: - CSTOP and RSTOP have been added (catch and release stop signal);
  445: - CONTINUE is added to continue a pending process halted by SUSPEND;
  446: - SUSPEND is modified to be stopped by SIGFSTOP;
  447: - src/Makefile.am is modified to avoid //TRANSLIT flag on systems that don't
  448: support GNU iconv;
  449: - configure.in script is modified to avoid bugs when --with-postgresql and
  450: --with-mysql are specified;
  451: - TRNC is written;
  452: - minor bug is fixed in both IFT and IFTE. Returned expression has to be
  453: evaluated.
  454: * Fri Apr 11 2008 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.6 (RPL/2)
  455: - SIGPIPE signal handler is modified to avoid abort process when POKE tries
  456: to write data into a pipe without reader;
  457: - major bug is fixed in RETURN intrinsic. When RETURN was called from a detached
  458: process without -p modifier, it can send an ABORT signal instead a KILL one;
  459: - PEEK, POKE and WFPOKE new intrinsics are written;
  460: - major bug due to new garbage collector is fixed in rplexternals.h (double free
  461: corruption);
  462: - CLRCNTXT is added (clear contexts);
  463: - VERIFY intrinsic is written;
  464: - PSHCNTXT and PULCNTXT are added (PSHCNTXT pushes context on an
  465: internal contexts stack, PULCNTXT pulls contexts from this internal stack).
  466: Main usages of these intrinsics are in conjonction with IFERR or with
  467: software interrupts;
  468: - HEAD, TAIL and REVLIST intrinsics are added;
  469: - function pointers have been added to function description;
  470: - new analyse() routine is written. All instrinsics are now in a N-tree;
  471: - software interrupts have been fixed;
  472: - multitasking capabilities have been modified to be usable on NetBSD. All real
  473: time signals have been removed;
  474: - major bugs are fixed in multitasking (mutex trouble _and_ segmentation fault);
  475: - minor bug is fixed in STR->. STR-> could return a system error instead an
  476: execution one;
  477: - first bug due to new garbage collector is fixed in '+' ({ } { } +) and in
  478: '-' intrinsics;
  479: - PostgreSQL support is written.
  480: * Mon Mar 17 2008 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.5 (RPL/2)
  481: - locale can now be specified in SQL intrinsic :
  482: { "mysql:iso-8859-1" "server" "database" ... };
  483: - major bug is fixed un analyse_algebrique(). When DISP printed an algebraic
  484: object, 'DISP()' was pushed in stack;
  485: - same major bug is fixed in <, >, <=, >= and <>;
  486: - major bug fixed in formateur() (segfault when a symbol is used without "'");
  487: - major bug is fixed in DUPN intrinsic;
  488: - when software interrupt (SWI) is evaluated, SWI pushs process id on stack
  489: before starting interrupt evaluation;
  490: - -f parameter is added when iconv is called;
  491: - as old file program was bugged, a new option is added to configure script.
  492: When configure is called with --disable-encoding-autodetection, make does not
  493: try to detect source encoding. Please, do not use if RPL/2 can be built
  494: without this option !
  495: - new garbage collector (and more efficient) is written;
  496: - configure script is modified to be usable on NetBSD 4.0, but as NetBSD does
  497: not support real time signals, RPL/2 cannot use multitasking functions;
  498: - error returned by preprocessor are now catched by RPL/2;
  499: - -p option is added. With this option, all scripts are compiled before
  500: RPL/2 starts evaluation. HALT cannot be used with -p, but all programs run
  501: 40% faster;
  502: - read and write operations in pipe() are rewritten to be sure that such
  503: operations are atomic;
  504: - minor bug is fixed in LOGSCALE. With {} LOGSCALE, all scales have to be
  505: linear;
  506: - major bug is fixed in gestion_processus.c (some pipes were not closed).
  507: * Sat Jan 5 2008 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.4 (RPL/2)
  508: - major bugs have been fixed in software interrupt management.
  509: * Fri Jan 4 2008 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.3 (RPL/2)
  510: - JDATE and RDATE are written;
  511: - minor bug (segfault) is fixed in EXSUB. It only occurs when EXSUB is executed
  512: with wrong arguments;
  513: - KILL now kills current process, ABORT kills program;
  514: - software interrupts support is added (SWI, WFSWI, SWILOCK, SWIUNLOCK,
  515: SWIQUEUE, STOSWI, RCLSWI, CLRSWI);
  516: - major bug is fixed in SQL intrinsic (argument types);
  517: - system stack is now written in core file;
  518: - ALARM is added;
  519: - nanosleep() now replaces sleep() and usleep() system calls;
  520: - _GNU_SOURCE is added to rpl.h.
  521: * Fri Nov 30 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.2 (RPL/2)
  522: - License is changed. Now RPL/2 license is CeCILL (GPL compliant);
  523: - EXGET adn EXSUB are added;
  524: - minor bug is fixed in recherche_type(). { <<†} has to return an error.
  525: '<<' and '>>' are both functions _and_ delimiters. Thus { IF } is
  526: acceptable, but {†>> } isn't;
  527: - GSL is now 1.10, gnuplot 4.2.2 and units 1.87;
  528: - OBGET and OBSUB intrinsics are added;
  529: - src/Makefile.am minor bug is fixed (make clean deleted src/rpl.xpm);
  530: - WAIT intrinsic is modified to use sleep() and usleep() if delay is
  531: greater than one second. On some systems, usleep argument must be lower
  532: than 1E6;
  533: - numeric and character formats are now tested;
  534: - -A flag is added. -A is used to give command line parameters to main
  535: routine. Example:
  536: rayleigh:[~/rpl-4.0.0.prerelease.2/examples] > ./test3.rpl -A "<< X sin >>"
  537: +++RPL/2 version 4.0.0.prerelease.2 (vendredi 05.10.2007, 19:03:01 CEST)
  538: +++Copyright (C) 1989 ŗ 2006, 2007 BERTRAND JoŽl
  539: << 'X' SIN >>
  540: rayleigh:[~/rpl-4.0.0.prerelease.2/examples] > cat test3.rpl 
  541: #!/usr/local/bin/rpl -s
  542: 
  543: TEST
  544: <<
  545:     disp
  546: >>
  547: - minor bug (segfault) is fixed in encart() routine (splash screen). Child
  548: process ended with segfault due to a mistake in Motif widget cleaning
  549: process;
  550: - major bug is fixed in DETACH intrinsic. Child process were locked when
  551: they were started with a locked mutex that comes from its father;
  552: - ctrl+C can now kill all child process;
  553: - WFPROC and WFDATA are rewritten;
  554: - RETURN is fixed to be usable in detached process;
  555: - HALT is not exported to child process;
  556: - FLOW filetype is added;
  557: - Makefiles are modified to support gcc-4.2 and gfortran-4.2;
  558: - socket support (Unix, IPv4, IPv6, STREAM, DATAGRAM, ROBUST DATAGRAM,
  559: SEQUENTIAL DATAGRAM, RAW) is added. Warning: IPv6 sockets have not been tested
  560: because I don't have any IPv6 compliant server, but they should work.
  561: * Mon Sep 10 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.1 (RPL/2)
  562: - library management is rewritten from scratch. EXTERNAL is removed and
  563: EXTERNALS is added. Now, all exported symbols are sent to RPL/2 when
  564: library is loaded;
  565: - OPEN arguments are changed;
  566: - EXTERNAL now checks availability of external functions;
  567: - number of arguments is verified in analyse_algebrique().
  568: 'SIN(A+X,2)' is now refused because SIN requires only one argument;
  569: - all but lapack symbols are exported from librpl with librpl, f77 or f90
  570: prefix;
  571: - minor bug is fixed in formateur() (AND and OR requires parenthesis);
  572: - rplexternals.h header file is added; Now, it is very easy to write
  573: external functions;
  574: - memory leak is fixed in analyse_algebrique();
  575: - minor bug (symbole flag) is fixed in sequenceur.c and types.c;
  576: - temp file was not removed when an error occurs in EDIT or VISIT;
  577: - 'name' should not returned a function ("FCT" object);
  578: - -rdynamic is added to src/Makefile.am.
  579: * Mon Jul 23 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.0.0.prerelease.0 (RPL/2)
  580: - Major bug is fixed in interface_tex.c. When there are errors in latex
  581: file, latex command waits for input on its command line;
  582: - major bug is fixed in tex.h (multiline strings);
  583: - examples subdir is added;
  584: - major bug is fixed in recherche_variable(). When an expression is evaluated
  585: in a function, all variables set in this function must be visible in
  586: expression. Thus, << I -> 3 << << I >> eval >> must return 3, not 'I';
  587: - LAST stack is saved in rplcore;
  588: - major bug is fixed in ->HMS. It only occurs when argument type is not
  589: integer or real;
  590: - major bug (segfault) is fixed when rpl is called with empty file;
  591: - libtool support is removed. Two new scripts (rplc and rpllink) are provided
  592: to use librpl.a;
  593: - automake scripts are rewritten to avoid a misconfiguration of librpl.a
  594: when -j make option is used;
  595: - trace output now contains PID;
  596: - rpl-core is renamed in rpl-code-$PID;
  597: - rplc and rpllink scripts can now sompile and build C and Fortran
  598: executables with librpl.a;
  599: - New classification, only a working simplification() routine is
  600: required to announce 4.0.0.final;
  601: - librpl entry point is modified to return results as strings array;
  602: - -S option is added;
  603: - due to a major bug in libtool, libtool is removed from autoconf/automake
  604: scripts;
  605: - VERSION is modified to return a list.
  606: * Tue Jul 17 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8x (RPL/2)
  607: - major regression bug is fixed in PRINT due to mistake in latex pathes;
  608: - gnuplot does not have to be built if --disable-embedded-gnuplot is set;
  609: - new prompt ("RPL/2> ") is used for interactive mode;
  610: - ARCCOS, ARCSIN, ARCTG, ARGCH, ARGSH, ARGTH, CH, SH, TH and TG intrinsics
  611: are removed, because all of these intrinsics have two forms. ARCCOS is
  612: the same than ACOS, TAN=TG, COSH=CH. Please adapt your scripts;
  613: - gnuplot compilation does not have to be done when disable-gnuplot is set;
  614: - major bug is fixed in RECV that avoid usage of multitasking.
  615: * Tue Jul 10 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8w (RPL/2)
  616: - False error (system error) was reported by recherche_type();
  617: - recherche_type() returns syntax error if a list is included in
  618: an algebraic expression;
  619: - --enable-debug is modified. Now, return can be defined to print
  620: on stdout its position in source code (line and function);
  621: - minor bug is fixed in recherche_type(). Don't forget that space
  622: are not significant in algebraic expression:
  623: '12 3+ 12    X' is the same expression than '123+12X';
  624: - src/Makefile.am is modified to avoid double compilation process;
  625: - --enable-final-run-path is added to configure.in script;
  626: - STATIC is modified to declare static variables in expression. Warning: static
  627: variables used in expressions are deleted when evaluation of this expression
  628: ends;
  629: - MEM does not report static variable sizes;
  630: - minor bug is fixed in HELP intrinsic. When the last instruction was not
  631: known, HELP function was pushed in operational stack. HELP did not work
  632: when there were space on input line.
  633: * Mon May 28 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8v (RPL/2)
  634: - DATE is modified: reduced julian days is replaced by fraction part
  635: of julian days. Old field used by julian days is now integer part of julian
  636: days;
  637: - CONVERT intrinsic is rewritten to accept absolute path in popen;
  638: - automake scripts are modified to delete src/lock file if build process aborts;
  639: - rplargs.h directly includes rpl.h;
  640: - absolute pathes are added to all external program files (rplplot, rplpp...);
  641: - intrinsic functions are case sensitive. External functions are case
  642: unsensitive. A minor bug is fixed in recherche_type() because all external
  643: functions were case unsensitive when they were evaluated from RPN expressions;
  644: - HELP function is rewritten to be more friendly (a la OpenVMS);
  645: - external wrapper (rplplot) is written to force usage of gnuplot provided
  646: by RPL/2 if it is built during build process. If this build does not exist,
  647: it tries to launch regular gnuplot;
  648: - gnuplot is added to source tree to avoid some trouble between preinstalled
  649: gnuplot and release used by RPL/2. This addition to source tree is
  650: required by some incompatibility between gnuplot releases;
  651: - Lapack is upgraded to 3.1.1 release;
  652: - GSL is upgraded to 1.9 revision;
  653: - RPL_TMP_PATH env variable is added to specify the path of tempfiles. If
  654: it is not set, /tmp is used. If /tmp is not writable, /var/tmp is used. If
  655: not, ./ but RPL/2 can hang with a fatal error if this last location is
  656: not writable;
  657: - major regression is fixed in SYSEVAL intrinsic due to introduction of
  658: error scrutation.
  659: * Sat Mar 24 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8u (RPL/2)
  660: - SYSEVAL is modified to return an error when execvp() syscall cannot
  661: execute its arguments;
  662: - -hard-float sparc option is remove from mkrplso;
  663: - major bug is fixed in SQL intrinsic that hangs when query did not return
  664: any values (for exemple INSERT);
  665: - escape sequences can be used in SYSEVAL argument like "echo \"string\""
  666: SYSEVAL;
  667: - graphic and PostScript outputs are now cleared in child process;
  668: - locales are now used by preprocessor;
  669: - major bug is fixed in impression_tex(). PRINT did not work due to a bug
  670: introduced by multitasking code;
  671: - SORT can now use name as its argument.
  672: * Sun Jan 21 2007 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8t (RPL/2)
  673: - Variable management has been rewritten and some tests have been done. Now,
  674: it is possible to execute:
  675: 
  676: #!/usr/local/bin/rpl -sc
  677: 
  678: TEST
  679: <<
  680:     1 1000 start VAR_S VAR_S2 next
  681: >>
  682: 
  683: VAR_S
  684: <<
  685:     static 3 -> C << C disp 'C' incr if C 10 > then 'C' volatile end >>
  686: >>
  687: 
  688: VAR_S2
  689: <<
  690:     static 3 -> C << C disp 'C' decr >>
  691: >>
  692: 
  693: - configure.in script is added in lapack subtree;
  694: - VARS is modified to display variables status (LOCKED/UNLOCKED and
  695: STATIC/VOLATILE/PARAMETER/VARIABLE);
  696: - STATIC and VOLATILE intrinsics are added to specify static variables. A
  697: static variable can be transformed into volatile with VOLATILE.
  698: With STATIC, next variables created by '->' are static;
  699: - PROTECT and UNPROTECT are added to protect variables against write
  700: or purge actions. New PARAMETER and VARIABLE intrinsics are modified
  701: versions of PROTECT and UNPROTECT that only deal with global variables
  702: (see RCL/SAVE);
  703: - variable management routines have been rewritten. The new ones are
  704: uncompatible with the old ones. Before these changes, a local variable
  705: was exported to a child subroutine, but cannot be modified into this
  706: child subroutine. Now, a local variable is accessible only in its subroutine;
  707: - SAVE intrinsic is added to manipulate global variables;
  708: - SUSPEND is written. RPL/2 waits for a SIGCONT signal;
  709: - SORT, COL->, ->COL, ROW->, ROW-> intrinsics are written;
  710: - Makefile.am are improved;
  711: - minor bug is fixed in ->list and ->array. Without any argument, these
  712: intrinsic only send a SIGSEGV;
  713: - ncurses is updated to release 5.6;
  714: - lapack is updated to 3.1.0.
  715: * Sun Dec 31 2006 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8s (RPL/2)
  716: - default CFLAGS/FFLAGS/FCFLAGS are modified due to a bug in gcc-sparc64
  717: that avoid a complete build;
  718: - CTRL+Z and CTRL+C signals only perform actions on main process;
  719: - major bugs are fixed in multitasking capabilities (some mistakes with
  720: mutexes and several terminated child process cannot be closed by the
  721: operating system);
  722: - minor bug fixed in SCLS (mistake between main and auxiliary axes);
  723: - variables are now written in rpl-core file;
  724: - NEG is modified to return 0 instead -0 when its argument is real or complex
  725: number;
  726: - ROW+ intrinsic can now be used on empty matrix without dimension error:
  727: [[]] 1 [[ 1 2 ]] row+;
  728: - major bug is fixed in SUB intrinsic. It only occurs with lists when
  729: it tries to returns invalid elements like { } 1 2 sub;
  730: - major bug is fixed in ROW- intrinsic;
  731: - major bug is fixed in ROW+ intrinsic.
  732: * Sat Dec 02 2006 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8r (RPL/2)
  733: - creation_nom_fichier() is rewritten to force all process to create
  734: different file names;
  735: - RANLUX is removed to use GSL library and avoid a bug in gfortran-4.1;
  736: - readline-5.2 and units-1.86 are now used;
  737: - SEQUENCE statement is added in fonctions_speciales.f90 to fix a build
  738: failure.
  739: * Mon Oct 23 2006 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8q (RPL/2)
  740: - wfproc is rewritten to avoid a dead lock;
  741: - major mistake is fixed in both sommation_vecteur_reel() and
  742: sommation_vecteur_complexe();
  743: - multitasking is rewritten from scratch to fix some mistakes with
  744: multithreading. DETACH, SEND and RECV now use four real time signals to
  745: perform a better task synchronization;
  746: - some bugs introduced by locales specific compilations are fixed;
  747: - major memory corruption is fixed in DEPND;
  748: - HELP intrinsic is modified to print a classified output.
  749: * Mon Aug 12 2006 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8p (RPL/2)
  750: - major memory leak is fixed in DETACH intrinsic. Files were closed by
  751: both childs and parent;
  752: - bug that avoids usage of Motif is fixed in configure.in;
  753: - makefile's are modified to build RPL/2 with other locale than ISO-8859;
  754: - db is removed from source tree due to some compilation troubles (db's
  755: autoconf script is broken);
  756: - sdb is removed from source tree due to some memory leaks and some troubles
  757: with its configure script. New SQL routines are written, but only MYSQL
  758: subsystem is available. Now, SQL can be used without memory leak;
  759: - major bug is fixed in evaluation() subroutine. Value of error flag
  760: was not returned in some cases;
  761: - FACT intrinsic does not accept real arguments anymore due to the new intrinsic
  762: GAMMA;
  763: - GAMMA intrinsic is added (complex function) ;
  764: - autoconf/automake scripts are modified to compile F90 sources;
  765: - src/distributions.f is replaced by src/distributions.f90. All Numerical
  766: Recipes references are avoided to use GSL;
  767: - GSL is upgraded to 1.8 release;
  768: - -lz is added in src/Makefile.am to fix a mistake in sparc32.
  769: * Mon Apr 10 2006 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8o (RPL/2)
  770: - fft.f is removed. Now FFT intrinsic uses dft subroutine;
  771: - Sparc64 optimizations are modified. Now gcc-4.0 can be used to build RPL/2 on
  772: Sparc64. Same modifications are done on sparc32;
  773: - major bug are fixed in both PLOTTER and HISTOGRAM intrinsics
  774: (interface with GNUplot).
  775: - major bugs are fixed in USE/REMOVE intrinsics (system stack corruption);
  776: - corruption of last stack is fixed in mclrin (only occurs when an error is
  777: caught);
  778: - major bug (in a malloc condition) is fixed in derivation().
  779: * Tue Jan 07 2006 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8n (RPL/2)
  780: - configure script and makefiles are modified to be usable with automake
  781: 1.9.6 (GNU), libtool 1.5.20 (GNU) and autoconf 2.59 (GNU).
  782: - gestion_fichiers() prototype is modified to be built by gfortran. Now,
  783: gfortran is the default compiler for FORTRAN code included in RPL/2;
  784: - libdb is added to perform indexed file access;
  785: - SQL interfaces are added (SQL intrinsic). Only mysql is supported;
  786: - minor bug is discovered and fixed in matrix multiplication (precision);
  787: - rpl.spec.in and debian directory are deleted due to some mistakes in the
  788: scripts required to build packages.
  789: * Tue Nov 15 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8m (RPL/2)
  790: - major bug is fixed in IFERR/THEN/(ELSE)/END structure. It occured when an
  791: error is caught before a regular IF/THEN/(ELSE)/END structure in
  792: IFERR/THEN/(ELSE)/END structure;
  793: - chmod 755 debian/rules is done by makefile;
  794: - major bug is fixed in recherche_instruction_suivante():
  795: +++"123 " str->
  796: +++Erreur : Argument invalide pour la commande << "123 " str-> >>
  797: Before this fix, it was impossible to use a command line that ends with spaces.
  798: * Sat Oct 29 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8l (RPL/2)
  799: - SELECT/CASE/DEFAULT/END is modified. Now, it is impossible to write:
  800: SELECT
  801:     <case>
  802:     CASE <test> THEN <expr> END
  803:     ...
  804:     DEFAULT
  805:     DEFAULT <- two DEFAULT's
  806: END
  807: 
  808: or
  809: 
  810: SELECT
  811:     <case>
  812:     CASE <test> THEN <expr> END
  813:     ...
  814:     DEFAULT
  815:     ...
  816:     CASE <test> THEN <expr> END <- CASE statement after DEFAULT
  817: END
  818: - major bug is fixed (in (unsigned char) getc()). It only occurs when RPL/2 is
  819: built with gcc-4.0.
  820: - configure.in is modified to be usable with gcc-4.0.
  821: * Mon Oct 3 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8k (RPL/2)
  822: - segmentation fault occurs in both PROMPT and INPUT when readline returns
  823: NULL (ctrl^D). This trouble is now fixed;
  824: - major bug is fixed in DATE intrinsic (julian days and reduced julian days);
  825: - stderr of rplpp is now caught;
  826: - SYSEVAL is modified to use stdin, stdout and stderr:
  827: ESSAI
  828: <<
  829:     // Only stdout and stderr
  830:     "ls" dup disp syseval
  831:     clmf
  832:     // Now with stdin ("zer\naze\n")
  833:     { "cat" "zer" "aze" } dup disp syseval
  834:     clmf
  835: >>
  836: - GSL is upgraded to 1.7.
  837: * Thu Sep 29 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8j (RPL/2)
  838: - SYSEVAL is modified. It now returns stdout and stderr in a list;
  839: - minor memory leak is fixed in recherche_instruction_suivante() subroutine.
  840: * Thu Aug 4 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8i (RPL/2)
  841: - internal file descriptors are modified to be usable with DUMP intrinsic;
  842: - VARS intrinsic is modified and now prints value of variables.
  843: * Thu Jul 21 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8h (RPL/2)
  844: - units is upgraded to 1.85 release;
  845: - -d flag is added in command line. Don't use this flag if you don't know
  846: what you do! It is only used to debug internal memory allocations;
  847: - internal pointers (ADR objects) are printed as 64 bits pointers to be usable
  848: on 64 bits wide architectures.
  849: * Sat apr 16 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8g (RPL/2)
  850: - DUMP is rewritten to be portable. It works, but without shared libraries,
  851: printer file, graphic files and last error. Support for this kind of objects
  852: shall be available as soon as possible. Warning: DUMP cannot be used in
  853: multiprocessing;
  854: - configure.in script is modified to return an error when g77 is not found;
  855: - a new internal type is used to handle shared libraries;
  856: - a major bug is discovered and fixed in recherche_type(). It only occurs
  857: in interactive mode ([[ 1 ]] returns a syntax error);
  858: - a major bug is found in simplification_arbre(). Subroutine is disabled.
  859: * Thu mar 17 2005 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8f (RPL/2)
  860: - option -r is added to restart a process from a dump file;
  861: - DUMP intrinsic is added. It performs synchronous checkpointing;
  862: - GSL is upgraded to release 1.6.
  863: * Wed dec 22 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8e (RPL/2)
  864: - Result types of PERM and COMB instrinsic are fixed;
  865: - RPL/2 now uses a new preprocessor due to a new 'feature' in gcc/cpp;
  866: - RPL/2 can now use all processors on multiprocessor workstations with
  867: DETACH, SEND, RECV and WFPROC new intrinsics. The first test program was:
  868: 
  869: #!/usr/local/bin/rpl -cs
  870: 
  871: MULTIPROCESSUS
  872: <<
  873:     'FONCTION' detach
  874:     do "B" disp until false end
  875: >>
  876: 
  877: FONCTION
  878: <<
  879:     do "A" disp until false end
  880: >>
  881: 
  882: * Sun dec 12 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8d (RPL/2)
  883: - major bug is discovered and fixed in analyse_notation_algebrique :
  884: +++'A-B-C' returned
  885: 1: 'A-(B-C)' instead of 1: 'A-B-C'. It is now fixed;
  886: - recherche_type() routine is improved to cast in name 1E5E-6 or 1.23.4.5.
  887: * Fri dec 7 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8c (RPL/2)
  888: - major bug is fixed in formateur_fichier(). Now, it is possible to use
  889: lists in a file record. Note that only sequential and formatted files
  890: are supported;
  891: - major bug is fixed in BACKSPACE intrinsic. It only occurs on large
  892: records.
  893: * Fri nov 26 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8b (RPL/2)
  894: - minor bug is fixed in IP intrinsic: when argument was real without
  895: fraction part, IP returned a real, not an integer;
  896: - minor bug is fixed in recherche_type(): it is now possible
  897: to enter +++<NB3 + return. RPL/2 returns a syntax error, not a acces
  898: violation;
  899: - MCLRIN (MacLaurin series) intrinsic is added;
  900: - TAYLR (Taylor series) instrinsic is added;
  901: - very minor bug is fixed in evaluation(). Sometimes, when evaluation()
  902: is stopped by ^C, EXIT intrinsic did not work due to a mistake in
  903: the internal system stack;
  904: - minor bug is fixed in encart.c. System error messages returned by
  905: this subroutine were only available in french;
  906: - internal RPL/2 system stack corruption is fixed. This bug only affects
  907: interactive and debug modes when evaluation routine returns an error;
  908: - symbolic derivation subroutine is now able to derivate functions;
  909: - minor bug is fixed in instruction_multiplication: now 'X' 1. * returns
  910: 'X' and not 'X*1'.
  911: * Thu nov 18 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8a (RPL/2)
  912: - ctags in src/Makefile.am is fixed;
  913: - first derivation subroutines are written;
  914: - major bug is fixed in analyse_algebrique() :
  915: before this patch, '3-5+4' was understand as '3-(5+4)' !
  916: - instruction_division() is improved and returns 0 when it evaluates
  917: '0/X';
  918: - instruction_moins() is improved and returns 'NEG(X)' when it evaluates
  919: '0-X'.
  920: * Fri nov 5 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre8 (RPL/2)
  921: - interface_gnuplot is modified and do not use any deprecated gnuplot
  922: commands. Warning, you must use gnuplot 4.0;
  923: - graphic output is improved. Now, it is possible to use two separated
  924: scales on the same 2D graph (with "main" and "auxiliary" option of SCALE
  925: intrinsic). For example:
  926: 
  927: #!/usr/local/bin/rpl -c
  928: 
  929: TEST
  930: <<
  931:     'X' indep
  932:     { X Y } autoscale
  933:     'SIN(X)' steq draw
  934:     { "auxiliary" } axes
  935:     { X Y } autoscale
  936:     'COS(X)+2' steq draw
  937:     { { "ticsonly" "automatic" } { "ticsonly" "automatic" } } axes
  938:     drax persist
  939: >>
  940: 
  941: - a major bug is fixed in encart.c;
  942: - ncurses is patched.
  943: * Mon nov 1 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre7o (RPL/2)
  944: - configure script is updated;
  945: - splash screen is added;
  946: - minor bug is fixed in SYSEVAL (only occurs with SIGINT signal).
  947: * Sun oct 24 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre7n (RPL/2)
  948: - stack overflows are caught.
  949: * Fri oct 8 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre7m (RPL/2)
  950: - minor bug is fixed in both << and >> intrinsics. It only occurs when
  951: "<<" HELP or ">>" help is called;
  952: - DFT and IDFT are added;
  953: - minor bug is fixed in FFT (explicit length has to be positive);
  954: - MOD can be used with vectors and matrices arguments;
  955: - major bugs are fixed in FFT and IFFT (trouble in the computation of the
  956: default length of FFT). Only occur with matrices.
  957: * Sat aug 14 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre7l (RPL/2)
  958: - readline is upgraded to 5.0;
  959: - gsl is upgraded to 1.5;
  960: - corrections in HELP functions.
  961: * Fri aug 7 2004 BERTRAND JoŽl <rpl@systella.fr> rpl-4.00pre7k (RPL/2)
  962: - HELP is added;
  963: - statistic matrix SIGMA is renamed as SDAT;
  964: - rpl.h is modified to workaround a bug in Cygwin environment
  965: (SA_NOMASK is not defined in include files);
  966: - overflows are tested in HMS+ and HMS-;
  967: - CEIL, FLOOR and IP are modified to return a correct result with huge
  968: arguments that cannot be stored as integers;
  969: - fix a minor bug in ->LIST. The LAST stack now contains all arguments
  970: of this intrinsic;
  971: - flag 32 is used with DISP;
  972: - major bug is fixed in ->Q intrinsic (type of argument and memory leak).
  973: * Fri may 21 2004 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7j (RPL/2)
  974: - major bug is fixed in analyse(). CHR intrinsic cannot be called because
  975: I have erased a 'break' in a case statement;
  976: - major bug is fixed in AXES intrinsic. It only occurs when AXES is used
  977: with "main" or "auxiliary" option;
  978: - major bug is fixed in recherche_types(). With this patch, 'sin(X)' is
  979: now well analysed as 'SIN(X)'.
  980: * Thu apr 22 2004 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7i (RPL/2)
  981: - major bug is discovered and fixed in formateur(). It only occurs when
  982: an algebraic expression is displayed with '='. In some cases, parenthesis
  983: are missing. Same fix in formateur_fichier();
  984: - a minor bug is fixed in evaluation.c that does not return any error when
  985: it tries to execute 'a=z' e = ;
  986: - new code is written in each intrinsic functions to return their required
  987: arguments.
  988: * Sun apr 14 2004 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7h (RPL/2)
  989: - a minor bug is fixed in recherche_type: 1.E90 is now a real;
  990: - minor bug is fixed in formateur_reel(). It only occurs in STD mode:
  991: 1E90 was printed as 1.00000000000000E90;
  992: - HELP is added;
  993: - formateur() is fixed to properly print matrices and lists;
  994: - a lot of warnings due to deprecated syntax are fixed;
  995: - DFT is modified but not usable;
  996: - cosmetic bug is fixed in formateur_tex.c;
  997: - minor bug is fixed in FFT intrinsic (segfault when FFT is called without
  998: any argument).
  999: * Sun Jan 25 2004 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7g (RPL/2)
 1000: - included ncurses is updated to 5.4;
 1001: - included units is updated to 1.83c;
 1002: - major bug is fixed in recherche_type() function. With this bug, RPL/2
 1003: prints 'A/INV(Z+E)+R' when you enter A Z E + inv R + /;
 1004: - DFT intrinsic is added. It returns the discrete Fourier transform of an
 1005: array. When the length of each line is 2**n, the result is the same as
 1006: the result of FFT;
 1007: - minor bug is discovered and fixed in PUT and PUTI intrinsics when these
 1008: instructions verify arguments types. It does not affect the result when
 1009: all arguments are correct.
 1010: * Sun Oct 19 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7f (RPL/2)
 1011: - major bug is fixed in evaluation of both EXIT and CYCLE intrinsics. Now,
 1012: EXIT can be used (as ABORT and KILL) to quit interactive mode of RPL/2;
 1013: - units is updated to 1.83a release;
 1014: - formateur_fichier.c is modified to handle unformatted files. This task
 1015: is not completed.
 1016: * Mon Aug 25 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7e (RPL/2)
 1017: - CLUSR is written. It purges all global variables;
 1018: - BESSEL intrinsic is fixed to allow the use of expressions as arguments;
 1019: - a major bug was introduced with rpl-4.00pre7d in formateur.c. It appears
 1020: when an algebraic expression is displayed or printed but does not affect
 1021: computations. It is now fixed;
 1022: - gsl is upgraded to 1.4.
 1023: * Mon Aug 18 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7d (RPL/2)
 1024: - algebraic expressions are now more readable when they are displayed
 1025: (less parenthesis);
 1026: - rplpp is modified to workaround a mistake in 'which' function (seems to appear
 1027: on Debian distribution, but since cpp is in the default path, RPL/2 works
 1028: fine...);
 1029: - NOT is not correctly formatted in formateur.c:
 1030: Z NOT -> 'NOT Z' but 'A+Z' NOT -> 'NOT A+Z' and 'NOT Z+A' -> 'NOTZ+A'
 1031: with a NOTZ function !
 1032: * Sun Aug 10 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7c (RPL/2)
 1033: - CYCLE is fixed. Now, it is possible to use CYCLE in an expression even
 1034: if the main loop is in a program;
 1035: - RPL/2 is tested with efence and valgrind;
 1036: - configure.in script is modified;
 1037: - units.c is modified to be built by gcc-3.3. I only have removed a #if 0/#endif
 1038: structure. I don't know why this code was compiled by gcc-3.3... Maybe
 1039: another gcc bug...
 1040: * Fri Jul 25 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7b (RPL/2)
 1041: - EXIT is fixed. Now, it is possible to use EXIT in an expression when the
 1042: main loop is in a program;
 1043: - RPL/2 can take its arguments (and command) on the standard input. Try
 1044: echo "1 2 3 + *" | rpl -i | grep "^1:" | cut -d ':' -f2
 1045: - a minor bug in vim syntax file is fixed (CYCLE and EXIT intrinsics);
 1046: - a minor bug is discovered in analyse_algebrique(). Now, expression
 1047: such as 'A+Z AND 2' or '(A+Z) AND 2' are correctly parsed.
 1048: * Mon Jun 16 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7a (RPL/2)
 1049: - Major bug is fixed in evaluation subroutine. This one only occurs
 1050: when an error in a user definition called by an expression is caught
 1051: by an IFERR structure;
 1052: - EXIT intrinsic can now be used in DO/UNTIL/END or WHILE/REPEAT/END loops;
 1053: - sequenceur() is now uninterruptible with STOP signal in recherche_type()
 1054: subroutine;
 1055: - major bug is fixed in types.c (# xxxxxb) and recherche_instruction_suivante();
 1056: - GSL exception (underflow) is now caught;
 1057: - tools/Makefile.am is fixed;
 1058: - Debian buildpackage script is fixed.
 1059: * Tue Jun 10 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre7 (RPL/2)
 1060: All memory leaks issued from the pre6 beta releases seem to be fixed.
 1061: Build process is improved and vim syntax file and manual pages are updated.
 1062: * Mon Jun 9 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6l (RPL/2)
 1063: - RCI and RCIJ intrinsic are added;
 1064: - BESSEL intrinsic is added. Syntax:
 1065: 3: type ("J", "K", "I", "Y", "j", "k", "i", "y")
 1066: 2: order (integer or real)
 1067: 1: x;
 1068: - ->Q intrinsic is added;
 1069: - major bug is fixed in C->R intrinsic;
 1070: - ROW+ and ROW- are added and tested;
 1071: - COL+ and COL- are added and tested. Syntax:
 1072: 3: matrix
 1073: 2: integer (number of column to be inserted)
 1074: 1: column matrix to be inserted;
 1075: - major bug was discovered in interface_gnuplot(). It only occurs when
 1076: the subroutine reduces the graphical depth. It is now fixed;
 1077: - Some mistakes are been fixed in vim syntax file;
 1078: - SX2, SY2 and SXY are added;
 1079: - SX and SY statistical intrinsics are added;
 1080: - DEBIAN control file is fixed;
 1081: - PAPER intrinsic is added. Supported paper formats are now : a4, a5, b5,
 1082: letter, legal, executive;
 1083: - PPAR is modified to include current graphic type.
 1084: * Sun Jun 1 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6k (RPL/2)
 1085: - SLICESCALE intrinsic is added. Its syntax is
 1086: { "automatic" nb_of_levels }
 1087: { "discrete" l1 l2 l3 ... }
 1088: { "incremental" start incr }
 1089: { "incremental" start incr end }
 1090: { "automatic" } (default);
 1091: - a minor bug (in last stack) is fixed in AXES intrinsic
 1092: - flag 52 is used to automatically update graphics;
 1093: - man pages are updated;
 1094: - evaluation() is modified to perform evaluation of expressions that contain
 1095: '=';
 1096: - a minor bug is fixed in AXES intrinsic;
 1097: - a minor bug is fixed in DRAW intrinsic (2D and 3D graphics were able to
 1098: appear on the same figure). The same mistake is fixed in DRWS intrinsic;
 1099: - LAST is disabled in evaluation subroutine (EVAL and ->NUM intrinsics).
 1100: * Sun May 18 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6j (RPL/2)
 1101: - SLICE intrinsic is added. It is used to draw 3D graphics as contour lines;
 1102: - PLOTTER is added to draw statistical clouds with lines;
 1103: - C and H source files now include vim parameters;
 1104: - vim syntax file is modified to include new intrinsics;
 1105: - static archive is modified to include all required libraries needed by
 1106: RPL/2.
 1107: * Sun May 4 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6i (RPL/2)
 1108: - '=' is added and tested;
 1109: - XCOL and YCOL are added;
 1110: - a minor bug in analyse_syntaxique() is fixed;
 1111: - THEN is modified to return an error when ELSE appears in a CASE/THEN/END
 1112: structure. ELSE is modified to return an error when ELSE appears in
 1113: an ELSE/END structure;
 1114: - a major bug is fixed in CYCLE;
 1115: - EXIT is written. When EXIT appears in a defined loop (FOR or START), the
 1116: sequencer continues after the end of this loop;
 1117: - SCLS is added;
 1118: - DRWS now uses COLS to draw 2D graphics;
 1119: - PPAR and SPAR are written. SPAR returns a list that contains the
 1120: size of the statistical matrix (or "UNAVALAIBLE" if there is any
 1121: statistical variable, or "DISABLED" if its type is not one of the type of
 1122: a statistical matrix.) and XCOL and YCOL parameters. Warning: [[]] SIZE
 1123: returns { 1 0 } and it is not a bug, because a null matrix contains _one_
 1124: null line ! Thus, [[]] STOS SPAR returns { { 1 0 } 1 2 };
 1125: - EXTERNAL intrinsic is added. Warning: by default, extern functions are
 1126: disabled. Arguments of EXTERNAL are case sensitive because the external
 1127: interface is written in C. { ext_sinus } EXTERNAL does not replace the list
 1128: of known external functions but add the new list to the last. { "all" }
 1129: EXTERNAL allows all external functions and { "none" } EXTERNAL removes all
 1130: external names of the known functions;
 1131: - mkrplso.in is modified.
 1132: * Sun Apr 20 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6h (RPL/2)
 1133: - vim syntax file is upgraded;
 1134: - a minor mistake is fixed in recherche_instruction_suivante();
 1135: - some minor memory leaks are fixed in recherche_type() function. They only
 1136: occurs when a syntax error is detected;
 1137: - #error and #warning preprocessor macros are added;
 1138: - INCR and DECR are written (with integer or variable argument);
 1139: - CSWP and RSWP are added and tested;
 1140: - a minor bug is fixed in analyse.c;
 1141: - DEBIAN/control is added to build debian package;
 1142: - SCALE is fixed and improved ("automatic" keyword);
 1143: - PUTC and PUTR new intrinsics are added.
 1144: * Sun Apr 13 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6g (RPL/2)
 1145: - a very minor bug is fixed in VISIT intrinsic. It only occurs when
 1146: VISIT does not find a name in level 1;
 1147: - configure.in script is modified to add a new test (--enable-debug
 1148: flag). Configured with this fleg, RPL/2 will be built with electric-fences;
 1149: - GETR (get row[s]) and GETC (get column[s]) are added. These new instructions
 1150: extract a part of a matrix. Syntax: [[ 1 2 3 ][ 2 3 4 ]] { 1 } GETR or
 1151: 'MATRIX' { 2 2 3 } GETR;
 1152: - LOGSCALE intrinsic is improved and now, it can be used as
 1153: { "main" "auxiliary" X Y } LOGSCALE;
 1154: - SCALE intrinsic is used to fix the limits of a graphic. Its syntax is the
 1155: same than AXES:
 1156: { { 60 "ticsonly" 2 } { "automatic" "ticsonly" 10 } } axes
 1157: { "auxiliary" { 60 "ticsonly" "default" } { "automatic" } } axes
 1158: { { -10 10 } "automatic" } SCALE.
 1159: Warning, it is not possible to ask a logarithmic scale with this intrinsic
 1160: because it changes only the dimension of the screen. To have a logarithmic
 1161: scale, you must use LOGSCALE intrinsic:
 1162: { X } LOGSCALE gives a semi-log screen, { "auxiliary" X Y } gives a log-log
 1163: screen on second scale;
 1164: - { X X } autoscale and { Y Y } logscale are now invalid;
 1165: - *D is added (depth multiplication, for 3D graphics);
 1166: - a new intrinsic (*S) is added. It changes the scale of a graphic (X, Y
 1167: and Z axes). The result of *S is the same than DUP DUP *H *W *D;
 1168: - a major bug is fixed in GETI instrinsic when it is used with a name
 1169: that contains a matrix or a vector (bad upper bounds conditions in
 1170: incrementation);
 1171: - DISP intrinsic now uses the 33-th flag. When it is not set
 1172: (default), a final carriage return is sent to the terminal;
 1173: - AXES intrinsic only takes a list that can contains the keywork
 1174: "main" or "auxiliary". Before this modification, this keyword was in
 1175: the first stack level;
 1176: - vim syntax file is upgraded;
 1177: - in appel_gnuplot(), stdin is closed when gnuplot is called with -raise
 1178: option;
 1179: - LAST is now disabled in the main loop of INT intrinsic;
 1180: - expm1 and lnp1 are rewritten to use expm1 and log1p from math.h.
 1181: * Sun Apr 6 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6f (RPL/2)
 1182: - a major bug is fixed in evaluation() subroutine. It occurs with DRAW
 1183: intrinsic when the equation cannot be evaluated (for example 'SIN(X)/X'
 1184: in 0);
 1185: - LAST is disabled in the main loop of DRAW intrinsic;
 1186: - a major bug is fixed in DRAW intrinsic. When an error occurs in the
 1187: evaluation of an equation, the system stack is returned corrupted to the
 1188: sequencer;
 1189: - the same minor bug is fixed in FOR and START. It only occurs when the limits
 1190: of a loop are not integer or real.
 1191: * Sun Mar 31 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6e (RPL/2)
 1192: - the compilation stage aborts with an error message when two definitions
 1193: have the same name. To improve the compilation() subroutine, I have to
 1194: add some tests in gestion_variables.c;
 1195: - recherche_type() subroutine ad some other connex subroutines are improved.
 1196: Now, some syntax errors about object are caught and do not perform sequencer
 1197: hangup;
 1198: - readline is upgraded (minor compilation bug with recent gcc);
 1199: - Makefile.am's and configure.in scripts are improved.
 1200: * Fri Mar 14 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6d (RPL/2)
 1201: - DRWS intrinsic is written. Two datastyles are associated: SCATTER (2D
 1202: and 3D) and HISTOGRAM (only 2D, but 3 columns are accepted, the third shown
 1203: the boxwidth, 1 by default);
 1204: - recherche_type() is rewritten to be faster;
 1205: - gsl is upgraded (release 1.3);
 1206: - ncurses is upgraded and patched (release 5.3);
 1207: - recherche_instruction_suivante() is fixed (string research with included
 1208: '"') and rewritten to be faster;
 1209: - appel_gnuplot() is fixed. When no graphic was available, it returned a
 1210: segfault.
 1211: * Sun Mar 9 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6c (RPL/2)
 1212: - RPL/2 is compiled by gcc-3.2.2 and seems to work;
 1213: - the same minor bug is fixed in REDRAW and DRAX functions;
 1214: - a minor fix is written in DRAW function (2D and 3D);
 1215: - AXES intrinsic is improved. Now { { pi "ticsonly" 4 } "automatic" } DRAX
 1216: is accepted;
 1217: - a minor bug is fixed in VISIT intrinsic.
 1218: * Sun Jan 26 2003 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6b (RPL/2)
 1219: - a minor bug is fixed in evaluation subroutine;
 1220: - vim syntax file is improved;
 1221: - DRAW (wireframe section) is fixed. When an error occurs in the evaluation
 1222: of a 3D-graphic (for example 'SIN(R)/R' with 'R=SQRT(X**2+Y**2)' in X=0 and
 1223: Y=0), no graph was procuced (it results from a bug in gnuplot, and this fix
 1224: is a quick and dirty workaround...);
 1225: - RETURN intrinsic is modified to fix a trouble in interactive mode;
 1226: - rplconvert is improved.
 1227: * Sun Dec 22 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6a (RPL/2)
 1228: - a memory leak is fixed in formateur.c that only occurs when RPL/2 try
 1229: to print a list that contains a name;
 1230: - a major bug is fixed in -> intrinsic that only occurs in evaluation case with
 1231: a algebraic expression (<< 1 -> X 'X+1' >> eval);
 1232: - vim syntax file is improved;
 1233: - RPL/2 can now be built by gcc 3.2.1;
 1234: - "**" can be used in algebraic expression;
 1235: - DRAW can now plot wireframe (3D) graphics.
 1236: * Sun Dec 8 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre6 (RPL/2)
 1237: - ncurses is patched to be compiled by gcc 3.2;
 1238: - purification_chaine is rewritten to fix a major bug (when 'chaine' is empty);
 1239: - a major bug is fixed in recherche_instruction_suivante();
 1240: - minor bug is fixed in rpl-core file. The error message is now correctly
 1241: written;
 1242: - minor bug is fixed in analyse_notation_algebrique.c and types.c.
 1243: Now, an expression such as 'A+' returns an error when it is analyzed;
 1244: - VISIT intrinsic is added;
 1245: - a major memory leak is fixed in evaluation.c. This bug rarely occurs in
 1246: normal mode.
 1247: * Sun Aug 25 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre5e (RPL/2)
 1248: - an EDIT intrinsic is added;
 1249: - PRMD intrinsic returns french or english messages;
 1250: - rpl-core now call LAST intrinsic if the last stack is avalaible. It
 1251: contains the error message too;
 1252: - new syntax, ftplugin and indent files are written for vim text editor;
 1253: - major bug is found and fixed in RCL intrinsic;
 1254: - major bug is found and fixed in OR intrinsic.
 1255: * Mon Jul 29 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre5d (RPL/2)
 1256: - ncurses is updated;
 1257: - minor bug is fixed on PURGE instruction (an error no caught was
 1258: returned in interactive mode).
 1259: * Mon Jul 21 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre5c (RPL/2)
 1260: - ASL (arithm. shift left) is added.
 1261: * Thu Jul 11 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre5b (RPL/2)
 1262: - ncurses is patched;
 1263: - gsl is added to perform arithmetic operations;
 1264: - units is patched;
 1265: - some very minor bugs have been fixed.
 1266: * Wed May 15 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre5a (RPL/2)
 1267: - ncurses is patched;
 1268: - RPL/2 can now be built by gcc 3.1;
 1269: - RDZ is fixed (minor bug).
 1270: * Sun Apr 21 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre5 (RPL/2)
 1271: - RPL/2 can now be called from other languages (librpl libraries).
 1272: * Sun Mar 24 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4h (RPL/2)
 1273: - ERRN and ERRM can now be used with errors returned by external functions;
 1274: - readline and ncurses have been updated;
 1275: - no more bugs have been reported since the rpl-4.00pre4g release.
 1276: * Wed Feb 20 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4g (RPL/2)
 1277: - ERRN and ERRM intrinsic functions are written. They return the last
 1278: error number or message even if errors are caught by an IFERR structure;
 1279: - a minor bug is fixed in EPSILON intrinsic. Now, 'EPSILON(0)' returns
 1280: a non null value;
 1281: - Ncurses is updated.
 1282: * Mon Feb 18 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4f (RPL/2)
 1283: Arithmetic intrinsic instructions (- +, -, *, / and **) are improved :
 1284: 'X' 0 + and 0 'X' + return 'X';
 1285: 'X' 0 - returns 'X';
 1286: 'X' 1 * and 1 'X' * return 'X';
 1287: 'X' 0 * and 0 'X' * returns 0; 
 1288: 'X' 1 / returns 'X';
 1289: 'X' 1 ** returns 'X';
 1290: 'NEG(X)' NEG returns 'X';
 1291: - autoconf/automake scripts are improved: now, the size of the different types
 1292: found by configure are used in rpltypes.h (rplconfig.h is written by configure);
 1293: - rdynamic flag is added in src/Makefile.am. This flag is used in the first
 1294: makefile, but forgotten in the new process;
 1295: - Flag 31 is tested before saving any arguments in bibliotheques_externes.c;
 1296: - POS can now be used on lists;
 1297: - ELSILON is written. This function returns the smallest real e(x) such as
 1298: e+abs(x) != abs(x).
 1299: * Mon Feb 11 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4e (RPL/2)
 1300: - now, INT intrinsic function can be interrupted;
 1301: - precision of sommation_vecteur_xxx() subroutines is improved;
 1302: - new vim syntax file written for vim 6.0.
 1303: * Mon Feb 04 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4d (RPL/2)
 1304: - explicit error messages are now printed when the RPL/2 is used in
 1305: interactive mode;
 1306: - major bug is fixed in OPEN intrinsic: with 'REPLACE' status, file lock was
 1307: tested after the file is opened, thus, when the file was locked, it was
 1308: deleted too!;
 1309: - configure script is improved (and it seems to be good ;-) );
 1310: - An --disable-experimental flag is added to the configure script. Thus, even
 1311: if you compile a beta release, you can compile a stable RPL/2;
 1312: - new syntax and ftplugin written for vim 6.0.
 1313: * Wed Jan 30 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4c (RPL/2)
 1314: - configure script is improved.
 1315: * Sun Jan 27 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4b (RPL/2)
 1316: - ncurses now replaces termcap;
 1317: - CŰme DESPLATS has written a configure script.
 1318: * Fri Jan 18 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4a (RPL/2)
 1319: - KIND is added and returns the type of the numerical argument ;
 1320: - history file is added.
 1321: * Tue Jan 15 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre4 (RPL/2)
 1322: - Stable release. Unformatted files are disabled in this release.
 1323: * Mon Jan 14 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3h (RPL/2)
 1324: - SIGTSTP (CTRL+Z) is added. In a script, a SIGTSTP signal signifies
 1325: that the RPL/2 seqencer must stop and must give a prompt. This
 1326: signal is an asynchonous "HALT" command;
 1327: - SIGINT (CTRL+C) variables stack corruption is fixed;
 1328: - IFERR seems to be fixed (in equation evaluation routine);
 1329: - Memory leak is fixed (ADR object type);
 1330: - DATE returns both date and hours;
 1331: - TIME now returns user and system CPU times;
 1332: - MEM is added.
 1333: * Thu Jan 10 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3g (RPL/2)
 1334: - Makefile is improved to support sparc v7 (sun4c), sparc v8 (sun4m) and
 1335: sparc v9 (sun4u). Now, RPL/2 can be built on i386 (i486 is known as i386),
 1336: i586, i686, K6, K7, alpha ev4, alpha ev5, alpha ev56, alpha ev6, sparc v7,
 1337: sparc v8 and sparc v9. Compilation of RPL/2 on my Sun Sparc 2 (sun4c,
 1338: CPU 4/75, 64 MB, 40 MHz with FPU) is a very great mission :
 1339: 
 1340: Newton:[~/rpl/rpl] > time make install
 1341: ...
 1342: real    338m39.623s
 1343: user    324m32.290s
 1344: sys     10m47.380s
 1345: Newton:[~/rpl/rpl] >
 1346: 
 1347: I don't know if you will compile this language on old worstations, but
 1348: it is usable ;-) ;
 1349: - SYSEVAL is improved. An external program can be called without any shell.
 1350: Thus, even if the sticky bit is set, RPL/2 can not give a shell root when
 1351: a SYSEVAL command crashes;
 1352: - minor bug is fixed in recherche_type() (# xxxxb parsing);
 1353: - presence of bootstrap entry point is verified before launching the
 1354: sequencer;
 1355: - minor bug is fixed in formateur_tex() (underscore in mathematical
 1356: expression);
 1357: - Lapack is updated.
 1358: * Thu Jan 3 2002 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3f (RPL/2)
 1359: - IFERR is now known in an expression, but not usable.
 1360: * Mon Dec 31 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3e (RPL/2)
 1361: - several bugs are fixed.
 1362: * Mon Dec 17 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3d (RPL/2)
 1363: - major bugfix in file locking.
 1364: * Fri Dec 14 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3c (RPL/2)
 1365: - minor fixes is system() call.
 1366: * Fri Nov 30 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3b (RPL/2)
 1367: - automatic limitation of the graphical depth due to a limitation (bug ?)
 1368: of gnuplot.
 1369: * Mon Nov 19 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3a (RPL/2)
 1370: - new file temp management.
 1371: * Sun Nov 18 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre3 (RPL/2)
 1372: - memory leak is fixed in STO instruction;
 1373: - minor bug in file management is fixed;
 1374: - BACKSPACE is added;
 1375: - VARS is added;
 1376: - file locks are improved.
 1377: * Wed Nov 14 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2l (RPL/2)
 1378: - major bug is fixed (on sparc architecture) and RPL/2 can now run
 1379: on sparc stations;
 1380: - INDEP and DEPND are improved;
 1381: - AXES is added;
 1382: - WRITE, APPEND and REWIND are added.
 1383: * Sun Nov 11 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2k (RPL/2)
 1384: - write is improved ;
 1385: - major bug is found and fixed in copie_objet() with struct_fichier;
 1386: - minor bug is fixed in OPEN function;
 1387: - minor bug is fixed in analyse_syntaxique() subroutine. All commands
 1388: are analysed before starting their executions.
 1389: * Thu Nov 8 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2j (RPL/2)
 1390: - minor bug is fixed in appel_gnuplot();
 1391: - RPL/2 can work without LANG variable.
 1392: * Wed Oct 31 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2i (RPL/2)
 1393: - WAIT function is improved (removing the polling function);
 1394: - LAST stack is not active (default) when rpl is called without the option -i.
 1395: In all other cases, LAST stack is active;
 1396: - Labels can be added on a gnuplot output (function LABEL);
 1397: - LCD-> and ->LCD are added.
 1398: * Sun Oct 21 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2h (RPL/2)
 1399: - minor bug is fixed in TeX output (pi);
 1400: - new english manual is added.
 1401: * Wed Oct 16 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2g (RPL/2)
 1402: - LOCK, WFLOCK and UNLOCK are added. A file is locked when it is opened;
 1403: - VERSION function is added. It returns the version number of the interpreter;
 1404: - minor bug is fixed in evaluation subroutine;
 1405: - english error messages are been fixed.
 1406: * Tue Oct 09 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2f (RPL/2)
 1407: - interrupt subroutine is added;
 1408: - formatted files support is continued.
 1409: * Sun Sep 30 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2e (RPL/2)
 1410: - formateur_fichier.c is added to perform formatted files write.
 1411: * Thu Sep 27 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2d (RPL/2)
 1412: - minors bugfixes in FIX format in formateur_reel() subroutine;
 1413: - new manual page in english;
 1414: - FORMAT intrinsic is added and can read any format for "formatted" file.
 1415: * Sun Sep 23 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2c (RPL/2)
 1416: - OPEN, CLOSE, SYNC, INQUIRE, CREATE and DELETE are tested;
 1417: - a man page in the first manual section is written.
 1418: * Thu Sep 20 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2b (RPL/2)
 1419: - major bugfixes in recherche_type() subroutine: sometimes in interactive mode,
 1420: this routine was be able to forget the last element of a list, a vector or
 1421: a matrix.
 1422: * Mon Sep 17 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2a (RPL/2)
 1423: - OPEN, CLOSE and DELETE are known by the language but not very usable;
 1424: - minor bugfixes in evaluation routine.
 1425: * Sun Sep 16 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre2 (RPL/2)
 1426: - major bugfixes in evaluation routine.
 1427: * Sat Sep 15 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre1d (RPL/2)
 1428: - conditional structures can be used in equations.
 1429: * Fri Sep 14 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre1c (RPL/2)
 1430: - Minor bugfixes in makefile.
 1431: * Sat Sep  8 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre1b (RPL/2)
 1432: - CONVERT is written;
 1433: - CYCLE, FOR/NEXT, FOR/STEP, START/NEXT, START/STEP, DO/UNTIL/END and
 1434: WHILE/REPEAT/END can now be used in an equation;
 1435: - I fix some troubles with evaluation subroutine;
 1436: - db3 library is added.
 1437: * Thu Sep  6 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre1a (RPL/2)
 1438: - add rplconvert and rplunits sources;
 1439: - add CONVERT definition (but it does not work).
 1440: * Mon Sep  3 2001 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre1 (RPL/2)
 1441: - initial public release (GPL).
 1442: * Thu Apr  2 1998 BERTRAND JoŽl <rpl2@systella.fr> rpl-4.00pre0 (RPL/2)
 1443: - RPL is rewritten from scratch and named RPL/2.
 1444: #* 1992 BERTRAND JoŽl rpl-3.02 (RPL-387)
 1445: #- minor bugfixes.
 1446: #* 1991 BERTRAND JoŽl rpl-3.01 (RPL-387)
 1447: #- arithmetic processor support is added to improve global performances.
 1448: #* 1991 BERTRAND JoŽl rpl-3.00 (RPL-386)
 1449: #- idem... but on an i386DX...
 1450: #* 1990 BERTRAND JoŽl rpl-2 (RPL-6809)
 1451: #- a new release on a more powerfull processor and with new functions and an
 1452: #built-in editor. It has been written on a SMT-Goupil G3-6809 running
 1453: #Flex9 (320 KB of RAM and a graphic card used to draw 512*256 graphics in
 1454: #8 colors)
 1455: #* 1989 BERTRAND JoŽl rpl-1 (RPL-6502)
 1456: #- initial release (only an historic interest) written on an ORIC Atmos 48K.
 1457: #No graphic was provided.

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