File:  [local] / rpl / ChangeLog
Revision 1.69: download - view: text, annotated - select for diffs - revision graph
Fri Jun 24 09:10:36 2011 UTC (12 years, 9 months ago) by bertrand
Branches: MAIN
CVS tags: HEAD
Modification des règles de compilation pour lier rplcas à l'exécutable
rpl et à la bibliothèque librpl.a.

    1: * Wed Jun 22 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.0.prerelease.3 (RPL/2)
    2: - minor bug is fixed in INTRINSIC function. Now, this function gives same
    3: result with ou without -p switch.
    4: * Wed Jun 22 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.0.prerelease.2 (RPL/2)
    5: - memory caching is added to new variable tree.
    6: * Tue Jun 21 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.0.prerelease.1 (RPL/2)
    7: - SPAWN is now usable with new variable management;
    8: - MEM is rewritten;
    9: - PRUSR is rewritten;
   10: - merge 4_0 branch into HEAD;
   11: - CLUSR is rewritten;
   12: - -p flag is now usable;
   13: - New benchmark:
   14: cauchy:[~/rpl/bench] > ./bench.rpl 
   15: +++RPL/2 (R) version 4.1.0.prerelease.1 (lundi 20/06/2011, 23:00:45 CEST)
   16: +++Copyright (C) 1989 à 2010, 2011 BERTRAND Joël
   17: Number of scalar operations per second and per core : 2625369.22710792
   18: * Mon Jun 20 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.1.0.prerelease.0 (RPL/2)
   19: - New variable management is written. Please note that -p flag does not work
   20: and all multithread/multitask capabilities have been disabled until this
   21: new subsystem shall be validated.
   22: * Thu May 09 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.0.23 (RPL/2)
   23: - major bug is fixed in STD format (1E7 sq prints 1);
   24: - major bug is fixed in READ intrinsic (socket). This bug was introduced
   25: by a new feature in glibc.
   26: * Thu Apr 14 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.0.22 (RPL/2)
   27: - by default, RPL/2 uses "NONE" IMPLICIT when it's started in batch mode and
   28: "ALL" IMPLICIT when it runs in interactive mode;
   29: - when "NONE" IMPLICIT is set, STO intrinsic raises an error when it is used
   30: to create or modify a global variable. Now, with "NONE" IMPLICIT, you have
   31: to use SAVE to manipulate global variables;
   32: - replace erroneous TAB by TBL in evaluation() and formateur_fichier()
   33: subroutines;
   34: - fix major memory access violation in evaluation subroutine. Only occurs
   35: when 'X(i,j)' is evaluated on a matrix and when (i,j) points out of bounds;
   36: - fix major bug in evaluation subroutine. 'X(i)' returns execution error
   37: when X was a vector or a table.
   38: * Sun Apr 04 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.0.21 (RPL/2)
   39: - Gnuplot is upgraded;
   40: - flag 34 is now used to enable or disable control character evaluation;
   41: - major bug is fixed in P->R intrinsic function when argument type is
   42: complex and degree mode is set;
   43: - L->T and T->L are added;
   44: - OLD filetype is fixed;
   45: - FLOW socket support is added;
   46: - FLOW sequential files are added;
   47: - new escape sequence is added to handle flow files (\x + hexadecimal code).
   48: Known escape sequences are \", \b, \n, \t, \x?? and \\.
   49: * Sun Mar 06 2011 BERTRAND Joël <rpl@systella.fr> rpl-4.0.20 (RPL/2)
   50: - Ncurses is upgraded to 5.8;
   51: - ALARM is fixed by filling isdst field;
   52: - catch ECONNRESET in write intrinsic to return an execution error instead of
   53: system one;
   54: - fix a typo in HELP intrinsic;
   55: - Openssl is upgraded to 1.0.0d, sqlite to 3.7.5 and readline to 6.2;
   56: - Lapack is upgraded to 3.3.0;
   57: - libmtmalloc is now default Solaris allocator;
   58: - ncurses is upgraded;
   59: - regression introduced by 4.0.19 is fixed in signal management.
   60: Interruption1() could be called from itself and raises bus error (on sparc) or
   61: segmentation fault;
   62: - sqlite is upgraded to 3.7.4;
   63: - OpenSSL is upgraded to 1.0.0c;
   64: - syntax error is correctly checked ( (2+,0) does not crash RPL/2 anymore);
   65: - characters are tested in recherche_type() to avoid names like '12+';
   66: - gnuplot is upgraded to 4.4.2 due to major bugs.
   67: * Thu Sep 23 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.19 (RPL/2)
   68: - due to a very strange bug I've only seen on Solaris, ptmalloc3 is removed.
   69: Solaris libresolv randomly uses ptmalloc3 and system allocator and makes heap
   70: corruption. As internal memory management have been improved, a best fit
   71: allocator like ptmalloc3 is not required anymore;
   72: - gnuplot is upgraded to 4.4.1;
   73: - deadlock is fixed in signal handlers: same mutex was used in standard
   74: subroutines (without protected sections by sigprocmask() or pthread_sigmask())
   75: and signal handlers. A new signal handler specific mutex is added;
   76: - minor bug is fixed in evaluation() subroutine. In { X 0 PI }, PI is a function
   77: that has to be evaluated by ->NUM;
   78: - rplfile build process is modify to be sure that rplfile is not modified
   79: after rpl build stage (to be sure that rplfile checksum is not modified after
   80: rpl compilation);
   81: - AWK is replaced by rplawk. rplawk is original awk written by Brian Kernighan,
   82: modified to remove yacc code and renamed;
   83: - some workarounds have been written to not use buggy klibc SystemV IPCS.
   84: ABORT now works on eComStation;
   85: - sqlite is upgraded to 3.7.2;
   86: - bug is fixed in software interrupts. When both process have different PID,
   87: parent process was not interrupted if it is not group master process. To fix
   88: this bug, SIGINJECT signal is not sent by child process but by control thread
   89: in parent process;
   90: - minor bug is fixed in data injection (POKE) that does not work as expected
   91: when child process is protected by NRPROC.
   92: * Thu Aug 26 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.18 (RPL/2)
   93: - --enable-sysv-sems is added to configure script to use SystemV semaphores
   94: functions instead of POSIX functions. This function is disabled or forced on
   95: systems that does not provide correct POSIX or SysV semaphores subsystem;
   96: - a dirty but not quick patch is written to workaround broken siginfo
   97: structures. This patch has been successfully tested. It uses a segment of
   98: shared memory (Posix or SysV) and some semaphores (Posix or SysV) by process
   99: (Unix PID);
  100: - some OpenBSD's hacks are added;
  101: - broken siginfo->si_pid field is now checked by configure script;
  102: - SWI now sends SIGCONT to interrupted process to start interrupt without delay;
  103: - random generator is cloned by SPAWN;
  104: - in transliteration subroutine : '\r' is added after all '\n' in OS/2 port;
  105: - getaddrinfo is hardcoded when host system does not provide getaddrinfo
  106: or freeaddrinfo;
  107: - RPL/2 can now use SystemV semaphores when POSIX semaphores are unavailable;
  108: - major bug is fixed in CHR intrinsic when obtained character is not printable;
  109: - Lapack is upgraded to 3.2.2;
  110: - OS/2 (eComStation 2.0 with EMX 0.9d) support is added;
  111: - TOKENIZE is now able to convert escape sequences;
  112: - ATPOKE and CLRATPOKE new intrinsics are added;
  113: - --enable-full-static configure flag is added. With this flag, mysql and
  114: postgresql libraries are statically linked in rpl executable;
  115: - units Makefile is modified to avoid readline and ncurses usages;
  116: - sqlite is upgraded to 3.7.0.1;
  117: - units is upgraded to 1.88;
  118: - another major bug is fixed in the same variable creation subroutine.
  119: Level 0 and 1 variables adresses were swapped when a global variable masked
  120: a name of RPL/2 routine;
  121: - major bug is fixed in global variable creation subroutine. When a global
  122: variable was created and when a local variable existed with the same name,
  123: computed address of global variable was wrong;
  124: - src/Makefile.am is modified to avoid a bug on several systems. libptmalloc3
  125: is forced in front of all libraries.
  126: * Tue Jul 13 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.17 (RPL/2)
  127: - BACKTRACE intrinsic is added;
  128: - major bug is fixed in SELECT/DEFAULT/END conditional structure. Only occurs
  129: when this structure is included in IFERR/THEN/END structure and when an error is
  130: caught;
  131: - major bug is fixed in analyse() subroutine. When evaluation() returned error
  132: in a compiled program, analyse() caught this error twice and randomly aborted
  133: with a segmentation error;
  134: - TRIM and TOKENIZE replace both '\n' and '\t' by regular spaces;
  135: - ATEXIT subroutine begins with an implicit CSTOP to avoid multiple stop
  136: signals;
  137: - memory leak is fixed in ROW+. It only occurs when a row is added to an empty
  138: matrix.
  139: * Thu Jun 24 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.16 (RPL/2)
  140: - minor bug is fixed in evaluation() subroutine. With this patch, same program
  141: returns same result with or without -p flag;
  142: - ncurses 5.7 is upgraded to 20100619;
  143: - openssl is upgraded to 1.0.0a;
  144: - interrupt stacks are now FIFO instead of LIFO;
  145: - debug memory allocation subroutines are improved to run in multithreaded
  146: programs;
  147: - some memory leaks are fixed in process management (SPAWN and DETACH);
  148: - version verification is added to shared objects;
  149: - -D_GNU_SOURCE is added to ptmalloc3 makefile to avoid a major bug on 64 bits
  150: linux (false mremap() prototype);
  151: - major bug is fixed in rpliconv. getc() returns an int, not a unsigned char.
  152: * Sun May 23 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.15 (RPL/2)
  153: - all '-' are replaced by '_' in random generator list;
  154: - minor memory leak is fixed in OPEN intrinsic (socket);
  155: - major bug is fixed in IFERR structure. Only occurs in compiled program;
  156: - major bug is fixed in copie_objet() and liberation(). Only concerns
  157: format in FCH (file descriptor) and SCK (socket descriptor);
  158: - debug routines are improved;
  159: - PROCID is added;
  160: - MEMLOCK and MEMUNLOCK are added. MEMLOCK forces a process to remain in memory
  161: and to not use swap;
  162: - major bug is fixed in sql support. SQL connections were closed in all chield
  163: process;
  164: - standard allocator (malloc()/free()) is replaced by ptmalloc3 due to some bugs
  165: discovered in Solaris thread safe allocators (libmalloc and libumem) that
  166: are first fit class allocators. Solaris libmtmalloc works better and is
  167: a best fit class allocator but its performance is poor than ptmalloc3
  168: performance;
  169: - major bug is fixed in ROW+ intrinsic (new row was not added where it
  170: should);
  171: - minor bugs are fixed in interruptions.c (semaphores values when error is
  172: caught);
  173: - major bug is fixed in STOP intrinsic. STOP was unable to stop any process
  174: created by SPAWN;
  175: - SIGFABORT is added. When process receives SIGFSTOP, it tries to execute
  176: ATEXIT. If it receives SIGFABORT, it does not;
  177: - ONEXIT is renamed in ATEXIT;
  178: - ONEXIT new intrinsic is added.
  179: * Wed Apr 21 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.14 (RPL/2)
  180: - major bug is fixed in static and shared variables initialization subroutine.
  181: This bug only occurs when RPL/2 tries to create a shared or static variable
  182: from an expression;
  183: - major bug is fixed in copie_etat_processus(). A field that contains
  184: information about shared variable was not copied to new processus structure;
  185: - some little memory leaks are fixed in evaluation(), recherche_type() and
  186: sequenceur(). They only occured when syntax error were caught;
  187: - IMPLICIT causes execution error instead system error;
  188: - Hurd support is improved but currently broken because Hurd does not support
  189: SIG_INFO. Work in progress;
  190: - OpenBSD specific support is removed from sources;
  191: - support for Mac OS X and Windows/Cygwin is added.
  192: * Wed Apr 07 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.13 (RPL/2)
  193: - implicit names can now be disabled by new IMPLICIT intrinsic:
  194: cauchy:[~/cvs/test] > cat implicit.rpl
  195: #!/usr/local/bin/rpl -sp
  196: TEST
  197: <<
  198:     "none" implicit
  199: 
  200:     1 -> Z
  201:     <<
  202:         Z disp
  203:         'Z' disp
  204:     >>
  205: 
  206:     'Z' disp
  207:     Z disp // Undefined
  208: >>
  209: 
  210: cauchy:[~/cvs/test] > LANG=C ./implicit.rpl
  211: +++RPL/2 (R) version 4.0.13 (Wednesday 04/07/10, 13:57:44 CEST)
  212: +++Copyright (C) 1989 to 2009, 2010 BERTRAND Joel
  213: 1
  214: 'Z'
  215: 'Z'
  216: +++System : Invalid implicit name [6631]
  217: cauchy:[~/cvs/test] > 
  218: 
  219: RPL/2 aborts because the last Z is undefined and not protected by ''.
  220: By default, implicit is set to "ALL";
  221: - sqlite is upgraded to 3.6.23.1;
  222: - openssl is upgraded to 1.0.0;
  223: - major bug is fixed in RETURN intrinsic. It only occurs in evaluation
  224: subroutine;
  225: - table variable can now be sorted by SORT;
  226: - some regressions between libtool 1.x and 2.x are fixed by workarouds in
  227: Makefiles;
  228: - -a command line option analyzes program (structure and syntax) and
  229: sends preprocessor output to standard output. This option is used by
  230: rplc (RPL/2 compiler).
  231: * Tue Mar 09 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.12 (RPL/2)
  232: - in formatted file, string format returned a variable length string even if
  233: format was 'CHARACTER*(n)' (n characters string). Now, 'CHARACTER*(*)' returns
  234: a variable length string and 'CHARACTER*(n)' a fixed length string;
  235: - keyed access files support is added. Currently, only formatted files are
  236: supported;
  237: - direct access files support is added. Currenlty, these files can only be used
  238: in formatted mode;
  239: - virtual variables are now writte in UTF-8 and all special characters
  240: in string are escaped;
  241: - all formatted files are now converted into UTF-8;
  242: - all file and unix socket names created by RPL/2 are now UTF-8 compliant;
  243: - RPL/2 tools (rpliconv, rplfile, rplpp and rplconvert) are now checked before
  244: each execution (md5 and sha1 sums) to enhance security. If one of these tools
  245: have been modified between RPL/2 compilation and current execution, RPL/2 aborts
  246: on a non recoverable system error;
  247: - openssl and sqlite3 libraries are added;
  248: - RPL_HOME env variable is added. When RPL/2 is called from librpl, this
  249: variable indicates RPL/2 root directory. If it is not set, root path
  250: is given by configure script (d_exec_path);
  251: * Thu Mar 03 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.11 (RPL/2)
  252: - configure.in and makefile.am's are modified to add Cygwin support. Interix
  253: support is broken;
  254: - memory leak is fixed in recherche_type();
  255: - TeX files are now written in UTF-8 even default locale differs;
  256: - minor bug is fixed in ->STR (escaped characters);
  257: - minor bug is fixed in ->Q intrinsic. Resultat is returned as integer
  258: fraction intead real one;
  259: - SIGN now returns (0,0) instead (nan,nan) when complex argument is null;
  260: - Makefile.am are modified to authorize parallel builds;
  261: - minor bug is fixed in CR intrinsic. CR sends a carriage return to printer
  262: and writes warning to standard output;
  263: * Wed Feb 10 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.10 (RPL/2)
  264: - escape codes are now converted in formateur(), not in recherche_type() to
  265: avoid a minor bug in EDIT and VISIT intrinsics;
  266: - minor bug is fixed in formateur_reel();
  267: - file-5.03 is patched to avoid bus error on systems that require memory
  268: alignment;
  269: - minor bug is fixed in evaluation(). Error returned by RPL/C external functions
  270: were able to be avoided by evaluation routine.
  271: * Tue Jan 26 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.9 (RPL/2)
  272: - New benchmark on same hardware than old one :
  273: cauchy:[~/rpl/bench] > ./bench.rpl 
  274: +++RPL/2 (R) version 4.0.9 (samedi 23/01/2010, 18:06:08 CET)
  275: +++Copyright (C) 1989 à 2009, 2010 BERTRAND Joël
  276: Number of scalar operations per second and per core : 2383016
  277: 
  278: - PULPRFL does not abort on BUG() but on execution error;
  279: - TRIM, REPL and TOKENIZE are added;
  280: - sockets options are now set before bind();
  281: - shutdown() is added to all connected sockets;
  282: - minor bug is fixed in SUB intrinsic (segfault when SUB is called with
  283: list argument and inexistant elements).
  284: * Fri Jan 08 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.8 (RPL/2)
  285: - minor bug is fixed in DAEMON intrinsic. When a program was daemonized, all
  286: signals sent to main process were not caught because DAEMON did not replace
  287: old pid by new one;
  288: - major bug is fixed in IFERR/THEN/ELSE/END. Only occurs in expression
  289: evaluation when an error is reported from a subroutine in another subroutine.
  290: For example, error was not caught in following program when it is executed with
  291: -p option :
  292:     TEST << iferr TEST2 then end >>
  293:     TEST2 << 0 inv >>
  294: - major bug is fixed in variable management. Some local variables were
  295: seen as global ones;
  296: - major bug is fixed in rplcore. Rplcore entered in dead lock when
  297: script file contains a multibyte character;
  298: - IN intrinsic is added;
  299: - major bug is fixed in SAME intrinsic : << 1 >> DUP SAME and 'E' DUP SAME
  300: returned false ;
  301: - major bug is fixed in RETURN intrinsic. It only occurs in compiled
  302: programs;
  303: - major bug is fixed in NEG intrinsic. NEG did not make a copy of its arguments;
  304: - regression is fixed in compilation(). "\\" was analysed as '"' '\' '\"' and
  305: strings were never closed;
  306: - some bugs have been fixed in file management;
  307: - RPL/2 can now be run on EBCDIC systems (OS/390);
  308: - major bug is fixed in -A command line option (NULL character is missing);
  309: - minor bug is fixed in rpliconv and RECODE intrinsic. All transliterations are
  310: made by blocks (1024 bytes). When an incomplete multibyte sequence is
  311: encountered at end of block, subroutine aborts with an execution error;
  312: - major bug is fixed in OPEN (TCP/IPv4 sockets).
  313: * Mon Nov 30 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.7 (RPL/2)
  314: - DISP now locks stdout;
  315: - rpliconv is added to replace standard iconv provided by operating system.
  316: Indeed, conversion between different encodages requires transliteration
  317: that is not offered by some iconv utility;
  318: - CURRENC and RECODE intrinsics have been written to allow strings conversions;
  319: - bug is fixed in SYSEVAL. When execvp() returns (for example when arg[0] can
  320: not be found), SYSEVAL enters in a dead lock;
  321: - fprintf is replaced by some functions that allow transliterations between
  322: locales;
  323: - '"' can now be used in strings ("\"");
  324: - iconv is called with -c in preprocessor stage. It is done to write
  325: CGI scripts with RPL/2 because locale charset is set to ANSI_X3.4-1968;
  326: - double free is fixed in liberation() (type SQL, only occurs when locale is
  327: set);
  328: - LOCALIZATION, UCASE and LCASE are added;
  329: - major bug is fixed in EXIT intrinsic that was able to return a false
  330: execution error in compiled scripts (only in DO/UNTIL and REPEAT/WHILE loops);
  331: - major bug is fixed in wrapper_instruction_intrinseque(). When intrinsic() was
  332: used in onLoading from shared library, USE was pushed on stack as algebraic
  333: expression;
  334: - libiconv is upgraded to 1.13.1;
  335: - gnuplot is upgraded to 4.2.6;
  336: - gsl is upgraded to 1.13.
  337: * Mon Sep 28 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.6 (RPL/2)
  338: - pipe() is overwritten by a macro to avoid a system error. Communication
  339: between process are done with pipes and these pipes are managed by a
  340: specific asynchrone thread. If a script try to create more threads than
  341: management thread can destroy, you can quickly achieve maximum number of
  342: opened files and pipe() shall return a system error. This macro tries to create
  343: pipes. If pipe() function returns an error, macro waits and retries. If
  344: number of retries is greater than a hardcoded value, macro returns an error;
  345: - major bug (deadlock) is fixed in process and thread management. I hope
  346: this bug shall be the last one;
  347: - major bug is fixed in DET intrinsic (determinant was computed without LU
  348: diagonalization);
  349: - SWAPCNTXT is added;
  350: - minor bug is fixed in Makefile.am (licences rule).
  351: * Wed Sep 09 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.5 (RPL/2)
  352: - some bugfixes are added in process management;
  353: - all process management is rewritten to avoid usage of defunct process
  354: or thread number;
  355: - new major bug is fixed in interruptions.c. Sometimes, when retrait_thread()
  356: was called before a pending interruption5 (SIGFSTOP), signal handler uses
  357: a freed semaphore and corrupts heap;
  358: - CLRERR is added to erase previous errors;
  359: - ERRN and ERRM return exception message and number;
  360: - major bug is fixed in interruptions.c. All signal are now bufferised
  361: when semaphore_liste_threads is null to avoid deadlock. This bug only
  362: occured when STOP was sent to a dying thread or process (when this thread or
  363: process was running retrait_thread());
  364: - matrix rank is computed before matrix inversion;
  365: - file locks are added to stdin and stdout. stderr is not locked because
  366: all messages written by signal handlers are sent to stderr;
  367: - configure.in script is modified to test gcc version and avoid a bug in
  368: gcc older than 4.4;
  369: - some benchmarks have been done :
  370: 
  371: cauchy:[~/rpl/bench] > ./bench.rpl 
  372: +++RPL/2 (R) version 4.0.5 (mardi 04/08/2009, 18:23:07 CEST)
  373: +++Copyright (C) 1989 à 2008, 2009 BERTRAND Joël
  374: Number of scalar operations per second and per core : 2109867
  375: 
  376: Workstation :
  377: cauchy:[~/rpl/build] > uname -a
  378: Linux cauchy 2.6.30.1 #1 SMP PREEMPT Thu Jul 16 09:49:46 2009 x86_64 GNU/Linux
  379: cauchy:[~/rpl/build] > cat /proc/cpuinfo | grep "model name"
  380: model name      : Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz
  381: model name      : Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz
  382: cauchy:[~/rpl/build] > gfortran -v 2>&1 | grep "gcc version"
  383: gcc version 4.3.3 (Debian 4.3.3-14) 
  384: cauchy:[~/rpl/build] >
  385: 
  386: - SVL and SVD are added;
  387: - COND and RANK are added;
  388: - DIAG-> and ->DIAG are added;
  389: - major bug is fixed in DET intrinsic. DET is rewritten to avoid usage of
  390: eigenvalues. In a first time, matrix rank is estimated to force determinant
  391: to zero if matrix is rank deficient. If not, a PLU decomposition is done to
  392: compute determinant;
  393: - QR matrix decomposition is added;
  394: - LQ matrix decomposition is added;
  395: - Fortran90 files are rewritten to use Fortran2003 bind(C) statement and
  396: Fortran preprocessor;
  397: - default compilation options are now -Wall -Wextra -Wno-pointer-sign
  398: -Wno-unused-parameter;
  399: - all mathematical exceptions are now signaled by exceptions instead of
  400: execution error;
  401: - minor bug is fixed in both CSTOP and RSTOP intrinsics. Without this fix, you
  402: can call twice CSTOP without RSTOP;
  403: - named semaphore support is added (CRSMPHR, CLRSMPHR, SMHRDECR, SMPHRINCR,
  404: SMPHRTRYDECR, SMPHGETV).
  405: * Fri Jul 24 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.4 (RPL/2)
  406: - semaphore is added in interruptions.c to avoid segmentation fault when STOP
  407: signal is sent to a dying thread. Some mutexes are replaced by semaphores too
  408: to be used in signal handlers;
  409: - major bug (memory corruption) is fixed in COL- intrinsic;
  410: - minor bug is fixed in ALARM and WAIT. These temporisations stopped when a
  411: software interrupt was caught;
  412: - rplpp man page is added.
  413: * Fri Jul 17 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.3 (RPL/2)
  414: - minor bug is fixed in WRITE (SIGPIPE is ignored to catch error without
  415: process termination);
  416: - major bug is fixed in FUSE intrinsic (FUSE kills itself and do not kill
  417: its parent);
  418: - a mutex to protect fork() syscall is added;
  419: - all mutexes are unlocked after fork() in DETACH;
  420: - minor bug (double free corruption) is fixed in CLOSE intrinsic;
  421: - major bug is fixed in lecture_pipe when a nullified list is sent into a pipe;
  422: - WORKDIR intrinsic is added;
  423: - Level 0 variables are shared between all threads without copy. Indeed,
  424: there variables are not modifiable and only contains static user definitions;
  425: - branches prediction is added in THEN, ELSE, ELSEIF and REPEAT intrinsics;
  426: - FORTRAN 77 file management subroutines are rewritten in pure C due to
  427: FORTRAN string management. C/FORTRAN 77 string interfaces are broken
  428: in some cases (gcc/gfortran/libc/OS and arch conjonction);
  429: - a memory leak is fixed in REMOVE intrinsic;
  430: - major bug is fixed in MySQL driver (segfault due to a bug in mysql_init()
  431: and due to a libmysqlclient that is not thread safe).
  432: * Wen Jun 10 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.2 (RPL/2)
  433: - new enhanced allocator is written for regular variables, static variables and
  434: shared variables;
  435: - major bug is fixed in src/interruptions.c. This file did not compile
  436: when SQL support was not enabled;
  437: - new allocator is written for system stack and last stack;
  438: - --enable-profile flag is added to configure script. When this flag is
  439: enabled, rpl is built with -pg option;
  440: - SIGFSTP (from Solaris'TERMIO) is caught. On Solaris 10, all process receive
  441: SIGFSTP (with a nullified siginfo structure) instead of SIGHUP when control
  442: process is killed;
  443: - abs() macro is modified to avoid multiple evaluation. Your C compiler has to
  444: know typeof() intrinsic function. This function is not standard but exists
  445: under Sun Studio, gcc, and maybe some others compilers. If this function does
  446: not exist on your compiler, you can change its definition by old one in
  447: src/rpl.h;
  448: - fflush() can now be interrupted by signal (SunOS);
  449: - fflush(NULL) is called before all fork() occurrences;
  450: - generators returned by RDGN help are sorted;
  451: - Lapack is now 3.2.1.
  452: * Mon May 18 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.1 (RPL/2)
  453: - bug is fixed in src/generateurs_aleatoires.awk. It only occurs when RPL/2 is
  454: built under Solaris.
  455: * Wed May 5 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0 (RPL/2)
  456: - major bug is fixed in matrix inversion (due to an inversion between pointer
  457: and object copies);
  458: - RDGN is added to use some different random number generators. See HELP RDGN;
  459: - code analysis is rewritten from scratch to be more efficient and mode
  460: expandable;
  461: - minor bug (segfault in interruption1) is fixed. It only occurs on Solaris
  462: that can returns a nullified siginfo pointer when SIGINT is sent by kernel
  463: keyboard driver;
  464: - gnuplot is now 4.2.5;
  465: - readline is upgraded to 6.0;
  466: - file is upgraded to 5.0;
  467: - Signal handlers are rewritten to send signal to main thread when a signal
  468: is send from an external process;
  469: - configure.in is modified to avoid a libc bug on Solaris (free() can enter in
  470: deadlock when a huge amount of threads is launched);
  471: - minor bug is fixed in boath START and FOR intrinsic. Only occurs when
  472: arguments types are unsupported;
  473: - PLOT instrinsic is added (usage: LINE and MARK do not draw anything. All
  474: data are buffered. PLOT is used to draw these objects.);
  475: - MARK instrinsic is added;
  476: - new allocator mechanism is written;
  477: - some regression bugs have been fixed, some memory leaks too.
  478: * Wed Jan 28 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.9 (RPL/2)
  479: - an estimation of future stack elements is added to avoid some costly memory
  480: allocations. This function has a positive impact on execution speed;
  481: - PSHPRFL and PULPRFL have been added;
  482: - RPL/2 can be built on Solaris 64 bits with some minor scripts alterations.
  483: See README for more explanations;
  484: - MTXSTATUS intrinsic is added;
  485: - YIELD intrinsic is added;
  486: - ERRM is fixed. In some cases, ERRM uses some uninitialized pointers;
  487: - SHARED and PRIVATE intrinsics have been added. A shared variable is a
  488: static variable that is shared by multiple threads;
  489: - '->' intrinsic is improved. All object copies have been avoided;
  490: - -n flag is added to catch HUP signal. stderr and stdout are redirected
  491: to a file, stdin is redirected to /dev/null when control process is killed;
  492: - a mutex is added to each object (before this modification,
  493: RPL/2 used a global mutex and performances in multithreaded programs were very
  494: poor.);
  495: - ALARM is now interruptible;
  496: - both PUT and PUTI intrinsics are improved and do not copy list and table
  497: when nombre_occurrences == 1;
  498: - COPY intrinsic is added. Argument (that can be pointed from some objects)
  499: is replaced by a new copy of itself;
  500: - memory leak is fixed in sequenceur(). It only occurs when an execution error
  501: is caught from interactive mode;
  502: - mutexes have been added (CRMTX, CLRMTX, MTXLOCK, MTXUNLOCK);
  503: - new mutex type is added;
  504: - profile statistics have been added. See -P option;
  505: - major bug is fixed in analyse_syntaxique();
  506: - new SQL type is added;
  507: - due to a trouble in libpq in multithreaded context, SQL intrinsic is split
  508: in three new intrinsics : SQLCONNECT, SQLQUERY and SQLDISCONNECT. Please note
  509: that all programs that worked with old SQL intrinsic can now work with
  510: SQLQUERY. With all new programs, you can open a real connection to databases;
  511: - NRPROC is added. This new intrinsic is used to catch error from child
  512: process. Without NRPROC, any errors returned by child process cause
  513: main process to abort;
  514: - SPAWN is added. This new intrinsic is used to launch a new thread (DETACH
  515: starts a new process). There are no mutexes in RPL/2 because all spawned process
  516: use specific context. Nevertheless, shared variables and associated mutexes
  517: should be added;
  518: - -D flag and DAEMONIZE intrinsic have been added;
  519: - REPEAT, THEN, ELSE and ELSEIF intrinsics are rewritten to be more efficient;
  520: - autoconf script is modified to handle mysql and postgresql on non standard
  521: directories;
  522: - -t flag is fixed ('\0' is missing...);
  523: - SWI and SEND pipes have been modified to be more robust on systems where
  524: getpid() can return (pid_t) -1 or (pid_t) -2 value;
  525: - major bug is fixed in REPEAT intrinsic. Only occurs in compiled mode;
  526: - all but jump variables are removed from source. All signal handlers now
  527: use encapsulated variables and signals are caught by thread;
  528: - major bug is discovered in ->LCD. Both LCD-> and ->LCD have been fixed;
  529: - NEWPLANE is added;
  530: - LINE is added;
  531: - DGTIZ is added;
  532: - major bug is fixed in ROW-> intrinsic (comes from new garbage collector);
  533: - lot of multiprocessing related bugs have been fixed; That was a huge work but
  534: it's done. Data integrity is now respected during transmission (POKE, SEND and
  535: SWI);
  536: - ITRACE is added. This intrinsic is only used to debug internal structures and
  537: should not be used in regular programs;
  538: - SWISTATUS is written;
  539: - WFACK is written;
  540: - rplcore files are now able to handle compilation errors;
  541: - rplcore files are now able to handle evaluation and interruption errors;
  542: - SORT can now be used on table;
  543: - tables can now be sent by POKE and SEND instrinsics;
  544: - software interrupts do not inherit IFERR controls;
  545: - LOGGER intrinsic is added;
  546: - All WF* intrinsics but WFSOCK are made interruptible;
  547: - ISWI intrinsic is added. Current interrupt is marked as 'interruptible';
  548: - tables can be used with SAME intrinsic;
  549: - minor bug is fixed in recherche_variable(). Only occurs when an error
  550: is caught;
  551: - external functions can now be used in expressions;
  552: - major bug (deadlock) is fixed in WFPOKE intrinsic;
  553: - some mistakes have been fixed under Solaris;
  554: - major bug is fixed in RETURN intrinsic (only occurs when evaluation and
  555: program modes are mixed);
  556: - major bug (dead lock) is fixed in gestion_processus.c;
  557: - major bug is fixed in WFPROC;
  558: - rplc, rpllink and mkrplso manpages are added;
  559: - rpltags tool and manpage are added;
  560: - WFLOCK is fixed;
  561: - RPL/2 kills now all process on error;
  562: - major bug (segfault) is fixed in REMOVE intrinsic.
  563: * Mon Jul 28 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.8 (RPL/2)
  564: - configure script is modified to check mysql and postgresql libraries
  565: on all standard locations. Tested and works on FreeBSD, Solaris and Linux
  566: Debian;
  567: - Tables are allowed in eval ( <[ 1 ]> 't' sto 't(1)' eval );
  568: - ->TABLE and TABLE-> intrinsics are added;
  569: - major bug is fixed in recherche_type(). Only occurs when rpl executes
  570: precompiled scripts;
  571: - new type is added: table with <[ ]> delimiters:
  572: RPL/2> { 2 3 2 } crtab
  573: 
  574: 1: <[ <[ <[ { }
  575:             { } ]>
  576:          <[ { }
  577:             { } ]>
  578:          <[ { }
  579:             { } ]> ]>
  580:       <[ <[ { }
  581:             { } ]>
  582:          <[ { }
  583:             { } ]>
  584:          <[ { }
  585:             { } ]> ]> ]>
  586: 
  587: CRTAB new intrinsic creates a regular table. By default, all elements are
  588: nullified lists;
  589: - rplexternals.h is modified and improved;
  590: - GNU File (renamed as rplfile) cannot be built due to a bug in libtoolize and
  591: configure script.
  592: * Mon Jun 23 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.7 (RPL/2)
  593: - libiconv is added (iconv library exists on some systems but implemantations
  594: differ and RPL/2 can crash);
  595: - --enable-encoding is added to configure script to force system encoding.
  596: Enconding detection does not work on OpenBSD;
  597: - internal file utility is shipped and used to avoid xBSD file mistakes;
  598: - GSL 1.11 and gnuplot 4.2.3 are now used;
  599: - src/Makefile.am is modified to built RPL/2 ons Solaris 10/sparc;
  600: - all but user's messages are written on stderr;
  601: - DUPCNTXT and DROPCNTXT are added to handle more efficiently contexts;
  602: - SCHED is added. Whit SCHED, you can limit CPU ressource by RPL/2 process;
  603: - FUSE, RFUSE and CLRFUSE have been added;
  604: - new bug discovered on NetBSD. sigpending() does not return any signal, thus
  605: DETACH intrinsic enters in a definitive dead lock. I have no idea to write a
  606: workaround for this major bug. Nevertheless, all others capabilities seems to
  607: work fine;
  608: - '->' is modified to return error when program tries to initialiaze two
  609: variables with the same name like
  610: 1 0 -> I I << ... >>;
  611: - CSTOP and RSTOP have been added (catch and release stop signal);
  612: - CONTINUE is added to continue a pending process halted by SUSPEND;
  613: - SUSPEND is modified to be stopped by SIGFSTOP;
  614: - src/Makefile.am is modified to avoid //TRANSLIT flag on systems that don't
  615: support GNU iconv;
  616: - configure.in script is modified to avoid bugs when --with-postgresql and
  617: --with-mysql are specified;
  618: - TRNC is written;
  619: - minor bug is fixed in both IFT and IFTE. Returned expression has to be
  620: evaluated.
  621: * Fri Apr 11 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.6 (RPL/2)
  622: - SIGPIPE signal handler is modified to avoid abort process when POKE tries
  623: to write data into a pipe without reader;
  624: - major bug is fixed in RETURN intrinsic. When RETURN was called from a detached
  625: process without -p modifier, it can send an ABORT signal instead a KILL one;
  626: - PEEK, POKE and WFPOKE new intrinsics are written;
  627: - major bug due to new garbage collector is fixed in rplexternals.h (double free
  628: corruption);
  629: - CLRCNTXT is added (clear contexts);
  630: - VERIFY intrinsic is written;
  631: - PSHCNTXT and PULCNTXT are added (PSHCNTXT pushes context on an
  632: internal contexts stack, PULCNTXT pulls contexts from this internal stack).
  633: Main usages of these intrinsics are in conjonction with IFERR or with
  634: software interrupts;
  635: - HEAD, TAIL and REVLIST intrinsics are added;
  636: - function pointers have been added to function description;
  637: - new analyse() routine is written. All instrinsics are now in a N-tree;
  638: - software interrupts have been fixed;
  639: - multitasking capabilities have been modified to be usable on NetBSD. All real
  640: time signals have been removed;
  641: - major bugs are fixed in multitasking (mutex trouble _and_ segmentation fault);
  642: - minor bug is fixed in STR->. STR-> could return a system error instead an
  643: execution one;
  644: - first bug due to new garbage collector is fixed in '+' ({ } { } +) and in
  645: '-' intrinsics;
  646: - PostgreSQL support is written.
  647: * Mon Mar 17 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.5 (RPL/2)
  648: - locale can now be specified in SQL intrinsic :
  649: { "mysql:iso-8859-1" "server" "database" ... };
  650: - major bug is fixed un analyse_algebrique(). When DISP printed an algebraic
  651: object, 'DISP()' was pushed in stack;
  652: - same major bug is fixed in <, >, <=, >= and <>;
  653: - major bug fixed in formateur() (segfault when a symbol is used without "'");
  654: - major bug is fixed in DUPN intrinsic;
  655: - when software interrupt (SWI) is evaluated, SWI pushs process id on stack
  656: before starting interrupt evaluation;
  657: - -f parameter is added when iconv is called;
  658: - as old file program was bugged, a new option is added to configure script.
  659: When configure is called with --disable-encoding-autodetection, make does not
  660: try to detect source encoding. Please, do not use if RPL/2 can be built
  661: without this option !
  662: - new garbage collector (and more efficient) is written;
  663: - configure script is modified to be usable on NetBSD 4.0, but as NetBSD does
  664: not support real time signals, RPL/2 cannot use multitasking functions;
  665: - error returned by preprocessor are now catched by RPL/2;
  666: - -p option is added. With this option, all scripts are compiled before
  667: RPL/2 starts evaluation. HALT cannot be used with -p, but all programs run
  668: 40% faster;
  669: - read and write operations in pipe() are rewritten to be sure that such
  670: operations are atomic;
  671: - minor bug is fixed in LOGSCALE. With {} LOGSCALE, all scales have to be
  672: linear;
  673: - major bug is fixed in gestion_processus.c (some pipes were not closed).
  674: * Sat Jan 5 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.4 (RPL/2)
  675: - major bugs have been fixed in software interrupt management.
  676: * Fri Jan 4 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.3 (RPL/2)
  677: - JDATE and RDATE are written;
  678: - minor bug (segfault) is fixed in EXSUB. It only occurs when EXSUB is executed
  679: with wrong arguments;
  680: - KILL now kills current process, ABORT kills program;
  681: - software interrupts support is added (SWI, WFSWI, SWILOCK, SWIUNLOCK,
  682: SWIQUEUE, STOSWI, RCLSWI, CLRSWI);
  683: - major bug is fixed in SQL intrinsic (argument types);
  684: - system stack is now written in core file;
  685: - ALARM is added;
  686: - nanosleep() now replaces sleep() and usleep() system calls;
  687: - _GNU_SOURCE is added to rpl.h.
  688: * Fri Nov 30 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.2 (RPL/2)
  689: - License is changed. Now RPL/2 license is CeCILL (GPL compliant);
  690: - EXGET adn EXSUB are added;
  691: - minor bug is fixed in recherche_type(). { << } has to return an error.
  692: '<<' and '>>' are both functions _and_ delimiters. Thus { IF } is
  693: acceptable, but { >> } isn't;
  694: - GSL is now 1.10, gnuplot 4.2.2 and units 1.87;
  695: - OBGET and OBSUB intrinsics are added;
  696: - src/Makefile.am minor bug is fixed (make clean deleted src/rpl.xpm);
  697: - WAIT intrinsic is modified to use sleep() and usleep() if delay is
  698: greater than one second. On some systems, usleep argument must be lower
  699: than 1E6;
  700: - numeric and character formats are now tested;
  701: - -A flag is added. -A is used to give command line parameters to main
  702: routine. Example:
  703: rayleigh:[~/rpl-4.0.0.prerelease.2/examples] > ./test3.rpl -A "<< X sin >>"
  704: +++RPL/2 version 4.0.0.prerelease.2 (vendredi 05.10.2007, 19:03:01 CEST)
  705: +++Copyright (C) 1989 à 2006, 2007 BERTRAND Joël
  706: << 'X' SIN >>
  707: rayleigh:[~/rpl-4.0.0.prerelease.2/examples] > cat test3.rpl 
  708: #!/usr/local/bin/rpl -s
  709: 
  710: TEST
  711: <<
  712:     disp
  713: >>
  714: - minor bug (segfault) is fixed in encart() routine (splash screen). Child
  715: process ended with segfault due to a mistake in Motif widget cleaning
  716: process;
  717: - major bug is fixed in DETACH intrinsic. Child process were locked when
  718: they were started with a locked mutex that comes from its father;
  719: - ctrl+C can now kill all child process;
  720: - WFPROC and WFDATA are rewritten;
  721: - RETURN is fixed to be usable in detached process;
  722: - HALT is not exported to child process;
  723: - FLOW filetype is added;
  724: - Makefiles are modified to support gcc-4.2 and gfortran-4.2;
  725: - socket support (Unix, IPv4, IPv6, STREAM, DATAGRAM, ROBUST DATAGRAM,
  726: SEQUENTIAL DATAGRAM, RAW) is added. Warning: IPv6 sockets have not been tested
  727: because I don't have any IPv6 compliant server, but they should work.
  728: * Mon Sep 10 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.1 (RPL/2)
  729: - library management is rewritten from scratch. EXTERNAL is removed and
  730: EXTERNALS is added. Now, all exported symbols are sent to RPL/2 when
  731: library is loaded;
  732: - OPEN arguments are changed;
  733: - EXTERNAL now checks availability of external functions;
  734: - number of arguments is verified in analyse_algebrique().
  735: 'SIN(A+X,2)' is now refused because SIN requires only one argument;
  736: - all but lapack symbols are exported from librpl with librpl, f77 or f90
  737: prefix;
  738: - minor bug is fixed in formateur() (AND and OR requires parenthesis);
  739: - rplexternals.h header file is added; Now, it is very easy to write
  740: external functions;
  741: - memory leak is fixed in analyse_algebrique();
  742: - minor bug (symbole flag) is fixed in sequenceur.c and types.c;
  743: - temp file was not removed when an error occurs in EDIT or VISIT;
  744: - 'name' should not returned a function ("FCT" object);
  745: - -rdynamic is added to src/Makefile.am.
  746: * Mon Jul 23 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.0 (RPL/2)
  747: - Major bug is fixed in interface_tex.c. When there are errors in latex
  748: file, latex command waits for input on its command line;
  749: - major bug is fixed in tex.h (multiline strings);
  750: - examples subdir is added;
  751: - major bug is fixed in recherche_variable(). When an expression is evaluated
  752: in a function, all variables set in this function must be visible in
  753: expression. Thus, << I -> 3 << << I >> eval >> must return 3, not 'I';
  754: - LAST stack is saved in rplcore;
  755: - major bug is fixed in ->HMS. It only occurs when argument type is not
  756: integer or real;
  757: - major bug (segfault) is fixed when rpl is called with empty file;
  758: - libtool support is removed. Two new scripts (rplc and rpllink) are provided
  759: to use librpl.a;
  760: - automake scripts are rewritten to avoid a misconfiguration of librpl.a
  761: when -j make option is used;
  762: - trace output now contains PID;
  763: - rpl-core is renamed in rpl-code-$PID;
  764: - rplc and rpllink scripts can now sompile and build C and Fortran
  765: executables with librpl.a;
  766: - New classification, only a working simplification() routine is
  767: required to announce 4.0.0.final;
  768: - librpl entry point is modified to return results as strings array;
  769: - -S option is added;
  770: - due to a major bug in libtool, libtool is removed from autoconf/automake
  771: scripts;
  772: - VERSION is modified to return a list.
  773: * Tue Jul 17 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8x (RPL/2)
  774: - major regression bug is fixed in PRINT due to mistake in latex pathes;
  775: - gnuplot does not have to be built if --disable-embedded-gnuplot is set;
  776: - new prompt ("RPL/2> ") is used for interactive mode;
  777: - ARCCOS, ARCSIN, ARCTG, ARGCH, ARGSH, ARGTH, CH, SH, TH and TG intrinsics
  778: are removed, because all of these intrinsics have two forms. ARCCOS is
  779: the same than ACOS, TAN=TG, COSH=CH. Please adapt your scripts;
  780: - gnuplot compilation does not have to be done when disable-gnuplot is set;
  781: - major bug is fixed in RECV that avoid usage of multitasking.
  782: * Tue Jul 10 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8w (RPL/2)
  783: - False error (system error) was reported by recherche_type();
  784: - recherche_type() returns syntax error if a list is included in
  785: an algebraic expression;
  786: - --enable-debug is modified. Now, return can be defined to print
  787: on stdout its position in source code (line and function);
  788: - minor bug is fixed in recherche_type(). Don't forget that space
  789: are not significant in algebraic expression:
  790: '12 3+ 12    X' is the same expression than '123+12X';
  791: - src/Makefile.am is modified to avoid double compilation process;
  792: - --enable-final-run-path is added to configure.in script;
  793: - STATIC is modified to declare static variables in expression. Warning: static
  794: variables used in expressions are deleted when evaluation of this expression
  795: ends;
  796: - MEM does not report static variable sizes;
  797: - minor bug is fixed in HELP intrinsic. When the last instruction was not
  798: known, HELP function was pushed in operational stack. HELP did not work
  799: when there were space on input line.
  800: * Mon May 28 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8v (RPL/2)
  801: - DATE is modified: reduced julian days is replaced by fraction part
  802: of julian days. Old field used by julian days is now integer part of julian
  803: days;
  804: - CONVERT intrinsic is rewritten to accept absolute path in popen;
  805: - automake scripts are modified to delete src/lock file if build process aborts;
  806: - rplargs.h directly includes rpl.h;
  807: - absolute pathes are added to all external program files (rplplot, rplpp...);
  808: - intrinsic functions are case sensitive. External functions are case
  809: unsensitive. A minor bug is fixed in recherche_type() because all external
  810: functions were case unsensitive when they were evaluated from RPN expressions;
  811: - HELP function is rewritten to be more friendly (a la OpenVMS);
  812: - external wrapper (rplplot) is written to force usage of gnuplot provided
  813: by RPL/2 if it is built during build process. If this build does not exist,
  814: it tries to launch regular gnuplot;
  815: - gnuplot is added to source tree to avoid some trouble between preinstalled
  816: gnuplot and release used by RPL/2. This addition to source tree is
  817: required by some incompatibility between gnuplot releases;
  818: - Lapack is upgraded to 3.1.1 release;
  819: - GSL is upgraded to 1.9 revision;
  820: - RPL_TMP_PATH env variable is added to specify the path of tempfiles. If
  821: it is not set, /tmp is used. If /tmp is not writable, /var/tmp is used. If
  822: not, ./ but RPL/2 can hang with a fatal error if this last location is
  823: not writable;
  824: - major regression is fixed in SYSEVAL intrinsic due to introduction of
  825: error scrutation.
  826: * Sat Mar 24 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8u (RPL/2)
  827: - SYSEVAL is modified to return an error when execvp() syscall cannot
  828: execute its arguments;
  829: - -hard-float sparc option is remove from mkrplso;
  830: - major bug is fixed in SQL intrinsic that hangs when query did not return
  831: any values (for exemple INSERT);
  832: - escape sequences can be used in SYSEVAL argument like "echo \"string\""
  833: SYSEVAL;
  834: - graphic and PostScript outputs are now cleared in child process;
  835: - locales are now used by preprocessor;
  836: - major bug is fixed in impression_tex(). PRINT did not work due to a bug
  837: introduced by multitasking code;
  838: - SORT can now use name as its argument.
  839: * Sun Jan 21 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8t (RPL/2)
  840: - Variable management has been rewritten and some tests have been done. Now,
  841: it is possible to execute:
  842: 
  843: #!/usr/local/bin/rpl -sc
  844: 
  845: TEST
  846: <<
  847:     1 1000 start VAR_S VAR_S2 next
  848: >>
  849: 
  850: VAR_S
  851: <<
  852:     static 3 -> C << C disp 'C' incr if C 10 > then 'C' volatile end >>
  853: >>
  854: 
  855: VAR_S2
  856: <<
  857:     static 3 -> C << C disp 'C' decr >>
  858: >>
  859: 
  860: - configure.in script is added in lapack subtree;
  861: - VARS is modified to display variables status (LOCKED/UNLOCKED and
  862: STATIC/VOLATILE/PARAMETER/VARIABLE);
  863: - STATIC and VOLATILE intrinsics are added to specify static variables. A
  864: static variable can be transformed into volatile with VOLATILE.
  865: With STATIC, next variables created by '->' are static;
  866: - PROTECT and UNPROTECT are added to protect variables against write
  867: or purge actions. New PARAMETER and VARIABLE intrinsics are modified
  868: versions of PROTECT and UNPROTECT that only deal with global variables
  869: (see RCL/SAVE);
  870: - variable management routines have been rewritten. The new ones are
  871: uncompatible with the old ones. Before these changes, a local variable
  872: was exported to a child subroutine, but cannot be modified into this
  873: child subroutine. Now, a local variable is accessible only in its subroutine;
  874: - SAVE intrinsic is added to manipulate global variables;
  875: - SUSPEND is written. RPL/2 waits for a SIGCONT signal;
  876: - SORT, COL->, ->COL, ROW->, ROW-> intrinsics are written;
  877: - Makefile.am are improved;
  878: - minor bug is fixed in ->list and ->array. Without any argument, these
  879: intrinsic only send a SIGSEGV;
  880: - ncurses is updated to release 5.6;
  881: - lapack is updated to 3.1.0.
  882: * Sun Dec 31 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8s (RPL/2)
  883: - default CFLAGS/FFLAGS/FCFLAGS are modified due to a bug in gcc-sparc64
  884: that avoid a complete build;
  885: - CTRL+Z and CTRL+C signals only perform actions on main process;
  886: - major bugs are fixed in multitasking capabilities (some mistakes with
  887: mutexes and several terminated child process cannot be closed by the
  888: operating system);
  889: - minor bug fixed in SCLS (mistake between main and auxiliary axes);
  890: - variables are now written in rpl-core file;
  891: - NEG is modified to return 0 instead -0 when its argument is real or complex
  892: number;
  893: - ROW+ intrinsic can now be used on empty matrix without dimension error:
  894: [[]] 1 [[ 1 2 ]] row+;
  895: - major bug is fixed in SUB intrinsic. It only occurs with lists when
  896: it tries to returns invalid elements like { } 1 2 sub;
  897: - major bug is fixed in ROW- intrinsic;
  898: - major bug is fixed in ROW+ intrinsic.
  899: * Sat Dec 02 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8r (RPL/2)
  900: - creation_nom_fichier() is rewritten to force all process to create
  901: different file names;
  902: - RANLUX is removed to use GSL library and avoid a bug in gfortran-4.1;
  903: - readline-5.2 and units-1.86 are now used;
  904: - SEQUENCE statement is added in fonctions_speciales.f90 to fix a build
  905: failure.
  906: * Mon Oct 23 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8q (RPL/2)
  907: - wfproc is rewritten to avoid a dead lock;
  908: - major mistake is fixed in both sommation_vecteur_reel() and
  909: sommation_vecteur_complexe();
  910: - multitasking is rewritten from scratch to fix some mistakes with
  911: multithreading. DETACH, SEND and RECV now use four real time signals to
  912: perform a better task synchronization;
  913: - some bugs introduced by locales specific compilations are fixed;
  914: - major memory corruption is fixed in DEPND;
  915: - HELP intrinsic is modified to print a classified output.
  916: * Mon Aug 12 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8p (RPL/2)
  917: - major memory leak is fixed in DETACH intrinsic. Files were closed by
  918: both childs and parent;
  919: - bug that avoids usage of Motif is fixed in configure.in;
  920: - makefile's are modified to build RPL/2 with other locale than ISO-8859;
  921: - db is removed from source tree due to some compilation troubles (db's
  922: autoconf script is broken);
  923: - sdb is removed from source tree due to some memory leaks and some troubles
  924: with its configure script. New SQL routines are written, but only MYSQL
  925: subsystem is available. Now, SQL can be used without memory leak;
  926: - major bug is fixed in evaluation() subroutine. Value of error flag
  927: was not returned in some cases;
  928: - FACT intrinsic does not accept real arguments anymore due to the new intrinsic
  929: GAMMA;
  930: - GAMMA intrinsic is added (complex function) ;
  931: - autoconf/automake scripts are modified to compile F90 sources;
  932: - src/distributions.f is replaced by src/distributions.f90. All Numerical
  933: Recipes references are avoided to use GSL;
  934: - GSL is upgraded to 1.8 release;
  935: - -lz is added in src/Makefile.am to fix a mistake in sparc32.
  936: * Mon Apr 10 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8o (RPL/2)
  937: - fft.f is removed. Now FFT intrinsic uses dft subroutine;
  938: - Sparc64 optimizations are modified. Now gcc-4.0 can be used to build RPL/2 on
  939: Sparc64. Same modifications are done on sparc32;
  940: - major bug are fixed in both PLOTTER and HISTOGRAM intrinsics
  941: (interface with GNUplot).
  942: - major bugs are fixed in USE/REMOVE intrinsics (system stack corruption);
  943: - corruption of last stack is fixed in mclrin (only occurs when an error is
  944: caught);
  945: - major bug (in a malloc condition) is fixed in derivation().
  946: * Tue Jan 07 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8n (RPL/2)
  947: - configure script and makefiles are modified to be usable with automake
  948: 1.9.6 (GNU), libtool 1.5.20 (GNU) and autoconf 2.59 (GNU).
  949: - gestion_fichiers() prototype is modified to be built by gfortran. Now,
  950: gfortran is the default compiler for FORTRAN code included in RPL/2;
  951: - libdb is added to perform indexed file access;
  952: - SQL interfaces are added (SQL intrinsic). Only mysql is supported;
  953: - minor bug is discovered and fixed in matrix multiplication (precision);
  954: - rpl.spec.in and debian directory are deleted due to some mistakes in the
  955: scripts required to build packages.
  956: * Tue Nov 15 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8m (RPL/2)
  957: - major bug is fixed in IFERR/THEN/(ELSE)/END structure. It occured when an
  958: error is caught before a regular IF/THEN/(ELSE)/END structure in
  959: IFERR/THEN/(ELSE)/END structure;
  960: - chmod 755 debian/rules is done by makefile;
  961: - major bug is fixed in recherche_instruction_suivante():
  962: +++"123 " str->
  963: +++Erreur : Argument invalide pour la commande << "123 " str-> >>
  964: Before this fix, it was impossible to use a command line that ends with spaces.
  965: * Sat Oct 29 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8l (RPL/2)
  966: - SELECT/CASE/DEFAULT/END is modified. Now, it is impossible to write:
  967: SELECT
  968:     <case>
  969:     CASE <test> THEN <expr> END
  970:     ...
  971:     DEFAULT
  972:     DEFAULT <- two DEFAULT's
  973: END
  974: 
  975: or
  976: 
  977: SELECT
  978:     <case>
  979:     CASE <test> THEN <expr> END
  980:     ...
  981:     DEFAULT
  982:     ...
  983:     CASE <test> THEN <expr> END <- CASE statement after DEFAULT
  984: END
  985: - major bug is fixed (in (unsigned char) getc()). It only occurs when RPL/2 is
  986: built with gcc-4.0.
  987: - configure.in is modified to be usable with gcc-4.0.
  988: * Mon Oct 3 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8k (RPL/2)
  989: - segmentation fault occurs in both PROMPT and INPUT when readline returns
  990: NULL (ctrl^D). This trouble is now fixed;
  991: - major bug is fixed in DATE intrinsic (julian days and reduced julian days);
  992: - stderr of rplpp is now caught;
  993: - SYSEVAL is modified to use stdin, stdout and stderr:
  994: ESSAI
  995: <<
  996:     // Only stdout and stderr
  997:     "ls" dup disp syseval
  998:     clmf
  999:     // Now with stdin ("zer\naze\n")
 1000:     { "cat" "zer" "aze" } dup disp syseval
 1001:     clmf
 1002: >>
 1003: - GSL is upgraded to 1.7.
 1004: * Thu Sep 29 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8j (RPL/2)
 1005: - SYSEVAL is modified. It now returns stdout and stderr in a list;
 1006: - minor memory leak is fixed in recherche_instruction_suivante() subroutine.
 1007: * Thu Aug 4 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8i (RPL/2)
 1008: - internal file descriptors are modified to be usable with DUMP intrinsic;
 1009: - VARS intrinsic is modified and now prints value of variables.
 1010: * Thu Jul 21 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8h (RPL/2)
 1011: - units is upgraded to 1.85 release;
 1012: - -d flag is added in command line. Don't use this flag if you don't know
 1013: what you do! It is only used to debug internal memory allocations;
 1014: - internal pointers (ADR objects) are printed as 64 bits pointers to be usable
 1015: on 64 bits wide architectures.
 1016: * Sat apr 16 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8g (RPL/2)
 1017: - DUMP is rewritten to be portable. It works, but without shared libraries,
 1018: printer file, graphic files and last error. Support for this kind of objects
 1019: shall be available as soon as possible. Warning: DUMP cannot be used in
 1020: multiprocessing;
 1021: - configure.in script is modified to return an error when g77 is not found;
 1022: - a new internal type is used to handle shared libraries;
 1023: - a major bug is discovered and fixed in recherche_type(). It only occurs
 1024: in interactive mode ([[ 1 ]] returns a syntax error);
 1025: - a major bug is found in simplification_arbre(). Subroutine is disabled.
 1026: * Thu mar 17 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8f (RPL/2)
 1027: - option -r is added to restart a process from a dump file;
 1028: - DUMP intrinsic is added. It performs synchronous checkpointing;
 1029: - GSL is upgraded to release 1.6.
 1030: * Wed dec 22 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8e (RPL/2)
 1031: - Result types of PERM and COMB instrinsic are fixed;
 1032: - RPL/2 now uses a new preprocessor due to a new 'feature' in gcc/cpp;
 1033: - RPL/2 can now use all processors on multiprocessor workstations with
 1034: DETACH, SEND, RECV and WFPROC new intrinsics. The first test program was:
 1035: 
 1036: #!/usr/local/bin/rpl -cs
 1037: 
 1038: MULTIPROCESSUS
 1039: <<
 1040:     'FONCTION' detach
 1041:     do "B" disp until false end
 1042: >>
 1043: 
 1044: FONCTION
 1045: <<
 1046:     do "A" disp until false end
 1047: >>
 1048: 
 1049: * Sun dec 12 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8d (RPL/2)
 1050: - major bug is discovered and fixed in analyse_notation_algebrique :
 1051: +++'A-B-C' returned
 1052: 1: 'A-(B-C)' instead of 1: 'A-B-C'. It is now fixed;
 1053: - recherche_type() routine is improved to cast in name 1E5E-6 or 1.23.4.5.
 1054: * Fri dec 7 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8c (RPL/2)
 1055: - major bug is fixed in formateur_fichier(). Now, it is possible to use
 1056: lists in a file record. Note that only sequential and formatted files
 1057: are supported;
 1058: - major bug is fixed in BACKSPACE intrinsic. It only occurs on large
 1059: records.
 1060: * Fri nov 26 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8b (RPL/2)
 1061: - minor bug is fixed in IP intrinsic: when argument was real without
 1062: fraction part, IP returned a real, not an integer;
 1063: - minor bug is fixed in recherche_type(): it is now possible
 1064: to enter +++<NB3 + return. RPL/2 returns a syntax error, not a acces
 1065: violation;
 1066: - MCLRIN (MacLaurin series) intrinsic is added;
 1067: - TAYLR (Taylor series) instrinsic is added;
 1068: - very minor bug is fixed in evaluation(). Sometimes, when evaluation()
 1069: is stopped by ^C, EXIT intrinsic did not work due to a mistake in
 1070: the internal system stack;
 1071: - minor bug is fixed in encart.c. System error messages returned by
 1072: this subroutine were only available in french;
 1073: - internal RPL/2 system stack corruption is fixed. This bug only affects
 1074: interactive and debug modes when evaluation routine returns an error;
 1075: - symbolic derivation subroutine is now able to derivate functions;
 1076: - minor bug is fixed in instruction_multiplication: now 'X' 1. * returns
 1077: 'X' and not 'X*1'.
 1078: * Thu nov 18 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8a (RPL/2)
 1079: - ctags in src/Makefile.am is fixed;
 1080: - first derivation subroutines are written;
 1081: - major bug is fixed in analyse_algebrique() :
 1082: before this patch, '3-5+4' was understand as '3-(5+4)' !
 1083: - instruction_division() is improved and returns 0 when it evaluates
 1084: '0/X';
 1085: - instruction_moins() is improved and returns 'NEG(X)' when it evaluates
 1086: '0-X'.
 1087: * Fri nov 5 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8 (RPL/2)
 1088: - interface_gnuplot is modified and do not use any deprecated gnuplot
 1089: commands. Warning, you must use gnuplot 4.0;
 1090: - graphic output is improved. Now, it is possible to use two separated
 1091: scales on the same 2D graph (with "main" and "auxiliary" option of SCALE
 1092: intrinsic). For example:
 1093: 
 1094: #!/usr/local/bin/rpl -c
 1095: 
 1096: TEST
 1097: <<
 1098:     'X' indep
 1099:     { X Y } autoscale
 1100:     'SIN(X)' steq draw
 1101:     { "auxiliary" } axes
 1102:     { X Y } autoscale
 1103:     'COS(X)+2' steq draw
 1104:     { { "ticsonly" "automatic" } { "ticsonly" "automatic" } } axes
 1105:     drax persist
 1106: >>
 1107: 
 1108: - a major bug is fixed in encart.c;
 1109: - ncurses is patched.
 1110: * Mon nov 1 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7o (RPL/2)
 1111: - configure script is updated;
 1112: - splash screen is added;
 1113: - minor bug is fixed in SYSEVAL (only occurs with SIGINT signal).
 1114: * Sun oct 24 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7n (RPL/2)
 1115: - stack overflows are caught.
 1116: * Fri oct 8 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7m (RPL/2)
 1117: - minor bug is fixed in both << and >> intrinsics. It only occurs when
 1118: "<<" HELP or ">>" help is called;
 1119: - DFT and IDFT are added;
 1120: - minor bug is fixed in FFT (explicit length has to be positive);
 1121: - MOD can be used with vectors and matrices arguments;
 1122: - major bugs are fixed in FFT and IFFT (trouble in the computation of the
 1123: default length of FFT). Only occur with matrices.
 1124: * Sat aug 14 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7l (RPL/2)
 1125: - readline is upgraded to 5.0;
 1126: - gsl is upgraded to 1.5;
 1127: - corrections in HELP functions.
 1128: * Fri aug 7 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7k (RPL/2)
 1129: - HELP is added;
 1130: - statistic matrix SIGMA is renamed as SDAT;
 1131: - rpl.h is modified to workaround a bug in Cygwin environment
 1132: (SA_NOMASK is not defined in include files);
 1133: - overflows are tested in HMS+ and HMS-;
 1134: - CEIL, FLOOR and IP are modified to return a correct result with huge
 1135: arguments that cannot be stored as integers;
 1136: - fix a minor bug in ->LIST. The LAST stack now contains all arguments
 1137: of this intrinsic;
 1138: - flag 32 is used with DISP;
 1139: - major bug is fixed in ->Q intrinsic (type of argument and memory leak).
 1140: * Fri may 21 2004 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7j (RPL/2)
 1141: - major bug is fixed in analyse(). CHR intrinsic cannot be called because
 1142: I have erased a 'break' in a case statement;
 1143: - major bug is fixed in AXES intrinsic. It only occurs when AXES is used
 1144: with "main" or "auxiliary" option;
 1145: - major bug is fixed in recherche_types(). With this patch, 'sin(X)' is
 1146: now well analysed as 'SIN(X)'.
 1147: * Thu apr 22 2004 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7i (RPL/2)
 1148: - major bug is discovered and fixed in formateur(). It only occurs when
 1149: an algebraic expression is displayed with '='. In some cases, parenthesis
 1150: are missing. Same fix in formateur_fichier();
 1151: - a minor bug is fixed in evaluation.c that does not return any error when
 1152: it tries to execute 'a=z' e = ;
 1153: - new code is written in each intrinsic functions to return their required
 1154: arguments.
 1155: * Sun apr 14 2004 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7h (RPL/2)
 1156: - a minor bug is fixed in recherche_type: 1.E90 is now a real;
 1157: - minor bug is fixed in formateur_reel(). It only occurs in STD mode:
 1158: 1E90 was printed as 1.00000000000000E90;
 1159: - HELP is added;
 1160: - formateur() is fixed to properly print matrices and lists;
 1161: - a lot of warnings due to deprecated syntax are fixed;
 1162: - DFT is modified but not usable;
 1163: - cosmetic bug is fixed in formateur_tex.c;
 1164: - minor bug is fixed in FFT intrinsic (segfault when FFT is called without
 1165: any argument).
 1166: * Sun Jan 25 2004 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7g (RPL/2)
 1167: - included ncurses is updated to 5.4;
 1168: - included units is updated to 1.83c;
 1169: - major bug is fixed in recherche_type() function. With this bug, RPL/2
 1170: prints 'A/INV(Z+E)+R' when you enter A Z E + inv R + /;
 1171: - DFT intrinsic is added. It returns the discrete Fourier transform of an
 1172: array. When the length of each line is 2**n, the result is the same as
 1173: the result of FFT;
 1174: - minor bug is discovered and fixed in PUT and PUTI intrinsics when these
 1175: instructions verify arguments types. It does not affect the result when
 1176: all arguments are correct.
 1177: * Sun Oct 19 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7f (RPL/2)
 1178: - major bug is fixed in evaluation of both EXIT and CYCLE intrinsics. Now,
 1179: EXIT can be used (as ABORT and KILL) to quit interactive mode of RPL/2;
 1180: - units is updated to 1.83a release;
 1181: - formateur_fichier.c is modified to handle unformatted files. This task
 1182: is not completed.
 1183: * Mon Aug 25 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7e (RPL/2)
 1184: - CLUSR is written. It purges all global variables;
 1185: - BESSEL intrinsic is fixed to allow the use of expressions as arguments;
 1186: - a major bug was introduced with rpl-4.00pre7d in formateur.c. It appears
 1187: when an algebraic expression is displayed or printed but does not affect
 1188: computations. It is now fixed;
 1189: - gsl is upgraded to 1.4.
 1190: * Mon Aug 18 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7d (RPL/2)
 1191: - algebraic expressions are now more readable when they are displayed
 1192: (less parenthesis);
 1193: - rplpp is modified to workaround a mistake in 'which' function (seems to appear
 1194: on Debian distribution, but since cpp is in the default path, RPL/2 works
 1195: fine...);
 1196: - NOT is not correctly formatted in formateur.c:
 1197: Z NOT -> 'NOT Z' but 'A+Z' NOT -> 'NOT A+Z' and 'NOT Z+A' -> 'NOTZ+A'
 1198: with a NOTZ function !
 1199: * Sun Aug 10 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7c (RPL/2)
 1200: - CYCLE is fixed. Now, it is possible to use CYCLE in an expression even
 1201: if the main loop is in a program;
 1202: - RPL/2 is tested with efence and valgrind;
 1203: - configure.in script is modified;
 1204: - units.c is modified to be built by gcc-3.3. I only have removed a #if 0/#endif
 1205: structure. I don't know why this code was compiled by gcc-3.3... Maybe
 1206: another gcc bug...
 1207: * Fri Jul 25 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7b (RPL/2)
 1208: - EXIT is fixed. Now, it is possible to use EXIT in an expression when the
 1209: main loop is in a program;
 1210: - RPL/2 can take its arguments (and command) on the standard input. Try
 1211: echo "1 2 3 + *" | rpl -i | grep "^1:" | cut -d ':' -f2
 1212: - a minor bug in vim syntax file is fixed (CYCLE and EXIT intrinsics);
 1213: - a minor bug is discovered in analyse_algebrique(). Now, expression
 1214: such as 'A+Z AND 2' or '(A+Z) AND 2' are correctly parsed.
 1215: * Mon Jun 16 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7a (RPL/2)
 1216: - Major bug is fixed in evaluation subroutine. This one only occurs
 1217: when an error in a user definition called by an expression is caught
 1218: by an IFERR structure;
 1219: - EXIT intrinsic can now be used in DO/UNTIL/END or WHILE/REPEAT/END loops;
 1220: - sequenceur() is now uninterruptible with STOP signal in recherche_type()
 1221: subroutine;
 1222: - major bug is fixed in types.c (# xxxxxb) and recherche_instruction_suivante();
 1223: - GSL exception (underflow) is now caught;
 1224: - tools/Makefile.am is fixed;
 1225: - Debian buildpackage script is fixed.
 1226: * Tue Jun 10 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7 (RPL/2)
 1227: All memory leaks issued from the pre6 beta releases seem to be fixed.
 1228: Build process is improved and vim syntax file and manual pages are updated.
 1229: * Mon Jun 9 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6l (RPL/2)
 1230: - RCI and RCIJ intrinsic are added;
 1231: - BESSEL intrinsic is added. Syntax:
 1232: 3: type ("J", "K", "I", "Y", "j", "k", "i", "y")
 1233: 2: order (integer or real)
 1234: 1: x;
 1235: - ->Q intrinsic is added;
 1236: - major bug is fixed in C->R intrinsic;
 1237: - ROW+ and ROW- are added and tested;
 1238: - COL+ and COL- are added and tested. Syntax:
 1239: 3: matrix
 1240: 2: integer (number of column to be inserted)
 1241: 1: column matrix to be inserted;
 1242: - major bug was discovered in interface_gnuplot(). It only occurs when
 1243: the subroutine reduces the graphical depth. It is now fixed;
 1244: - Some mistakes are been fixed in vim syntax file;
 1245: - SX2, SY2 and SXY are added;
 1246: - SX and SY statistical intrinsics are added;
 1247: - DEBIAN control file is fixed;
 1248: - PAPER intrinsic is added. Supported paper formats are now : a4, a5, b5,
 1249: letter, legal, executive;
 1250: - PPAR is modified to include current graphic type.
 1251: * Sun Jun 1 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6k (RPL/2)
 1252: - SLICESCALE intrinsic is added. Its syntax is
 1253: { "automatic" nb_of_levels }
 1254: { "discrete" l1 l2 l3 ... }
 1255: { "incremental" start incr }
 1256: { "incremental" start incr end }
 1257: { "automatic" } (default);
 1258: - a minor bug (in last stack) is fixed in AXES intrinsic
 1259: - flag 52 is used to automatically update graphics;
 1260: - man pages are updated;
 1261: - evaluation() is modified to perform evaluation of expressions that contain
 1262: '=';
 1263: - a minor bug is fixed in AXES intrinsic;
 1264: - a minor bug is fixed in DRAW intrinsic (2D and 3D graphics were able to
 1265: appear on the same figure). The same mistake is fixed in DRWS intrinsic;
 1266: - LAST is disabled in evaluation subroutine (EVAL and ->NUM intrinsics).
 1267: * Sun May 18 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6j (RPL/2)
 1268: - SLICE intrinsic is added. It is used to draw 3D graphics as contour lines;
 1269: - PLOTTER is added to draw statistical clouds with lines;
 1270: - C and H source files now include vim parameters;
 1271: - vim syntax file is modified to include new intrinsics;
 1272: - static archive is modified to include all required libraries needed by
 1273: RPL/2.
 1274: * Sun May 4 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6i (RPL/2)
 1275: - '=' is added and tested;
 1276: - XCOL and YCOL are added;
 1277: - a minor bug in analyse_syntaxique() is fixed;
 1278: - THEN is modified to return an error when ELSE appears in a CASE/THEN/END
 1279: structure. ELSE is modified to return an error when ELSE appears in
 1280: an ELSE/END structure;
 1281: - a major bug is fixed in CYCLE;
 1282: - EXIT is written. When EXIT appears in a defined loop (FOR or START), the
 1283: sequencer continues after the end of this loop;
 1284: - SCLS is added;
 1285: - DRWS now uses COLS to draw 2D graphics;
 1286: - PPAR and SPAR are written. SPAR returns a list that contains the
 1287: size of the statistical matrix (or "UNAVALAIBLE" if there is any
 1288: statistical variable, or "DISABLED" if its type is not one of the type of
 1289: a statistical matrix.) and XCOL and YCOL parameters. Warning: [[]] SIZE
 1290: returns { 1 0 } and it is not a bug, because a null matrix contains _one_
 1291: null line ! Thus, [[]] STOS SPAR returns { { 1 0 } 1 2 };
 1292: - EXTERNAL intrinsic is added. Warning: by default, extern functions are
 1293: disabled. Arguments of EXTERNAL are case sensitive because the external
 1294: interface is written in C. { ext_sinus } EXTERNAL does not replace the list
 1295: of known external functions but add the new list to the last. { "all" }
 1296: EXTERNAL allows all external functions and { "none" } EXTERNAL removes all
 1297: external names of the known functions;
 1298: - mkrplso.in is modified.
 1299: * Sun Apr 20 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6h (RPL/2)
 1300: - vim syntax file is upgraded;
 1301: - a minor mistake is fixed in recherche_instruction_suivante();
 1302: - some minor memory leaks are fixed in recherche_type() function. They only
 1303: occurs when a syntax error is detected;
 1304: - #error and #warning preprocessor macros are added;
 1305: - INCR and DECR are written (with integer or variable argument);
 1306: - CSWP and RSWP are added and tested;
 1307: - a minor bug is fixed in analyse.c;
 1308: - DEBIAN/control is added to build debian package;
 1309: - SCALE is fixed and improved ("automatic" keyword);
 1310: - PUTC and PUTR new intrinsics are added.
 1311: * Sun Apr 13 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6g (RPL/2)
 1312: - a very minor bug is fixed in VISIT intrinsic. It only occurs when
 1313: VISIT does not find a name in level 1;
 1314: - configure.in script is modified to add a new test (--enable-debug
 1315: flag). Configured with this fleg, RPL/2 will be built with electric-fences;
 1316: - GETR (get row[s]) and GETC (get column[s]) are added. These new instructions
 1317: extract a part of a matrix. Syntax: [[ 1 2 3 ][ 2 3 4 ]] { 1 } GETR or
 1318: 'MATRIX' { 2 2 3 } GETR;
 1319: - LOGSCALE intrinsic is improved and now, it can be used as
 1320: { "main" "auxiliary" X Y } LOGSCALE;
 1321: - SCALE intrinsic is used to fix the limits of a graphic. Its syntax is the
 1322: same than AXES:
 1323: { { 60 "ticsonly" 2 } { "automatic" "ticsonly" 10 } } axes
 1324: { "auxiliary" { 60 "ticsonly" "default" } { "automatic" } } axes
 1325: { { -10 10 } "automatic" } SCALE.
 1326: Warning, it is not possible to ask a logarithmic scale with this intrinsic
 1327: because it changes only the dimension of the screen. To have a logarithmic
 1328: scale, you must use LOGSCALE intrinsic:
 1329: { X } LOGSCALE gives a semi-log screen, { "auxiliary" X Y } gives a log-log
 1330: screen on second scale;
 1331: - { X X } autoscale and { Y Y } logscale are now invalid;
 1332: - *D is added (depth multiplication, for 3D graphics);
 1333: - a new intrinsic (*S) is added. It changes the scale of a graphic (X, Y
 1334: and Z axes). The result of *S is the same than DUP DUP *H *W *D;
 1335: - a major bug is fixed in GETI instrinsic when it is used with a name
 1336: that contains a matrix or a vector (bad upper bounds conditions in
 1337: incrementation);
 1338: - DISP intrinsic now uses the 33-th flag. When it is not set
 1339: (default), a final carriage return is sent to the terminal;
 1340: - AXES intrinsic only takes a list that can contains the keywork
 1341: "main" or "auxiliary". Before this modification, this keyword was in
 1342: the first stack level;
 1343: - vim syntax file is upgraded;
 1344: - in appel_gnuplot(), stdin is closed when gnuplot is called with -raise
 1345: option;
 1346: - LAST is now disabled in the main loop of INT intrinsic;
 1347: - expm1 and lnp1 are rewritten to use expm1 and log1p from math.h.
 1348: * Sun Apr 6 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6f (RPL/2)
 1349: - a major bug is fixed in evaluation() subroutine. It occurs with DRAW
 1350: intrinsic when the equation cannot be evaluated (for example 'SIN(X)/X'
 1351: in 0);
 1352: - LAST is disabled in the main loop of DRAW intrinsic;
 1353: - a major bug is fixed in DRAW intrinsic. When an error occurs in the
 1354: evaluation of an equation, the system stack is returned corrupted to the
 1355: sequencer;
 1356: - the same minor bug is fixed in FOR and START. It only occurs when the limits
 1357: of a loop are not integer or real.
 1358: * Sun Mar 31 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6e (RPL/2)
 1359: - the compilation stage aborts with an error message when two definitions
 1360: have the same name. To improve the compilation() subroutine, I have to
 1361: add some tests in gestion_variables.c;
 1362: - recherche_type() subroutine ad some other connex subroutines are improved.
 1363: Now, some syntax errors about object are caught and do not perform sequencer
 1364: hangup;
 1365: - readline is upgraded (minor compilation bug with recent gcc);
 1366: - Makefile.am's and configure.in scripts are improved.
 1367: * Fri Mar 14 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6d (RPL/2)
 1368: - DRWS intrinsic is written. Two datastyles are associated: SCATTER (2D
 1369: and 3D) and HISTOGRAM (only 2D, but 3 columns are accepted, the third shown
 1370: the boxwidth, 1 by default);
 1371: - recherche_type() is rewritten to be faster;
 1372: - gsl is upgraded (release 1.3);
 1373: - ncurses is upgraded and patched (release 5.3);
 1374: - recherche_instruction_suivante() is fixed (string research with included
 1375: '"') and rewritten to be faster;
 1376: - appel_gnuplot() is fixed. When no graphic was available, it returned a
 1377: segfault.
 1378: * Sun Mar 9 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6c (RPL/2)
 1379: - RPL/2 is compiled by gcc-3.2.2 and seems to work;
 1380: - the same minor bug is fixed in REDRAW and DRAX functions;
 1381: - a minor fix is written in DRAW function (2D and 3D);
 1382: - AXES intrinsic is improved. Now { { pi "ticsonly" 4 } "automatic" } DRAX
 1383: is accepted;
 1384: - a minor bug is fixed in VISIT intrinsic.
 1385: * Sun Jan 26 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6b (RPL/2)
 1386: - a minor bug is fixed in evaluation subroutine;
 1387: - vim syntax file is improved;
 1388: - DRAW (wireframe section) is fixed. When an error occurs in the evaluation
 1389: of a 3D-graphic (for example 'SIN(R)/R' with 'R=SQRT(X**2+Y**2)' in X=0 and
 1390: Y=0), no graph was procuced (it results from a bug in gnuplot, and this fix
 1391: is a quick and dirty workaround...);
 1392: - RETURN intrinsic is modified to fix a trouble in interactive mode;
 1393: - rplconvert is improved.
 1394: * Sun Dec 22 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6a (RPL/2)
 1395: - a memory leak is fixed in formateur.c that only occurs when RPL/2 try
 1396: to print a list that contains a name;
 1397: - a major bug is fixed in -> intrinsic that only occurs in evaluation case with
 1398: a algebraic expression (<< 1 -> X 'X+1' >> eval);
 1399: - vim syntax file is improved;
 1400: - RPL/2 can now be built by gcc 3.2.1;
 1401: - "**" can be used in algebraic expression;
 1402: - DRAW can now plot wireframe (3D) graphics.
 1403: * Sun Dec 8 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6 (RPL/2)
 1404: - ncurses is patched to be compiled by gcc 3.2;
 1405: - purification_chaine is rewritten to fix a major bug (when 'chaine' is empty);
 1406: - a major bug is fixed in recherche_instruction_suivante();
 1407: - minor bug is fixed in rpl-core file. The error message is now correctly
 1408: written;
 1409: - minor bug is fixed in analyse_notation_algebrique.c and types.c.
 1410: Now, an expression such as 'A+' returns an error when it is analyzed;
 1411: - VISIT intrinsic is added;
 1412: - a major memory leak is fixed in evaluation.c. This bug rarely occurs in
 1413: normal mode.
 1414: * Sun Aug 25 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5e (RPL/2)
 1415: - an EDIT intrinsic is added;
 1416: - PRMD intrinsic returns french or english messages;
 1417: - rpl-core now call LAST intrinsic if the last stack is avalaible. It
 1418: contains the error message too;
 1419: - new syntax, ftplugin and indent files are written for vim text editor;
 1420: - major bug is found and fixed in RCL intrinsic;
 1421: - major bug is found and fixed in OR intrinsic.
 1422: * Mon Jul 29 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5d (RPL/2)
 1423: - ncurses is updated;
 1424: - minor bug is fixed on PURGE instruction (an error no caught was
 1425: returned in interactive mode).
 1426: * Mon Jul 21 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5c (RPL/2)
 1427: - ASL (arithm. shift left) is added.
 1428: * Thu Jul 11 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5b (RPL/2)
 1429: - ncurses is patched;
 1430: - gsl is added to perform arithmetic operations;
 1431: - units is patched;
 1432: - some very minor bugs have been fixed.
 1433: * Wed May 15 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5a (RPL/2)
 1434: - ncurses is patched;
 1435: - RPL/2 can now be built by gcc 3.1;
 1436: - RDZ is fixed (minor bug).
 1437: * Sun Apr 21 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5 (RPL/2)
 1438: - RPL/2 can now be called from other languages (librpl libraries).
 1439: * Sun Mar 24 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4h (RPL/2)
 1440: - ERRN and ERRM can now be used with errors returned by external functions;
 1441: - readline and ncurses have been updated;
 1442: - no more bugs have been reported since the rpl-4.00pre4g release.
 1443: * Wed Feb 20 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4g (RPL/2)
 1444: - ERRN and ERRM intrinsic functions are written. They return the last
 1445: error number or message even if errors are caught by an IFERR structure;
 1446: - a minor bug is fixed in EPSILON intrinsic. Now, 'EPSILON(0)' returns
 1447: a non null value;
 1448: - Ncurses is updated.
 1449: * Mon Feb 18 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4f (RPL/2)
 1450: Arithmetic intrinsic instructions (- +, -, *, / and **) are improved :
 1451: 'X' 0 + and 0 'X' + return 'X';
 1452: 'X' 0 - returns 'X';
 1453: 'X' 1 * and 1 'X' * return 'X';
 1454: 'X' 0 * and 0 'X' * returns 0; 
 1455: 'X' 1 / returns 'X';
 1456: 'X' 1 ** returns 'X';
 1457: 'NEG(X)' NEG returns 'X';
 1458: - autoconf/automake scripts are improved: now, the size of the different types
 1459: found by configure are used in rpltypes.h (rplconfig.h is written by configure);
 1460: - rdynamic flag is added in src/Makefile.am. This flag is used in the first
 1461: makefile, but forgotten in the new process;
 1462: - Flag 31 is tested before saving any arguments in bibliotheques_externes.c;
 1463: - POS can now be used on lists;
 1464: - ELSILON is written. This function returns the smallest real e(x) such as
 1465: e+abs(x) != abs(x).
 1466: * Mon Feb 11 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4e (RPL/2)
 1467: - now, INT intrinsic function can be interrupted;
 1468: - precision of sommation_vecteur_xxx() subroutines is improved;
 1469: - new vim syntax file written for vim 6.0.
 1470: * Mon Feb 04 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4d (RPL/2)
 1471: - explicit error messages are now printed when the RPL/2 is used in
 1472: interactive mode;
 1473: - major bug is fixed in OPEN intrinsic: with 'REPLACE' status, file lock was
 1474: tested after the file is opened, thus, when the file was locked, it was
 1475: deleted too!;
 1476: - configure script is improved (and it seems to be good ;-) );
 1477: - An --disable-experimental flag is added to the configure script. Thus, even
 1478: if you compile a beta release, you can compile a stable RPL/2;
 1479: - new syntax and ftplugin written for vim 6.0.
 1480: * Wed Jan 30 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4c (RPL/2)
 1481: - configure script is improved.
 1482: * Sun Jan 27 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4b (RPL/2)
 1483: - ncurses now replaces termcap;
 1484: - Côme DESPLATS has written a configure script.
 1485: * Fri Jan 18 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4a (RPL/2)
 1486: - KIND is added and returns the type of the numerical argument ;
 1487: - history file is added.
 1488: * Tue Jan 15 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4 (RPL/2)
 1489: - Stable release. Unformatted files are disabled in this release.
 1490: * Mon Jan 14 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3h (RPL/2)
 1491: - SIGTSTP (CTRL+Z) is added. In a script, a SIGTSTP signal signifies
 1492: that the RPL/2 seqencer must stop and must give a prompt. This
 1493: signal is an asynchonous "HALT" command;
 1494: - SIGINT (CTRL+C) variables stack corruption is fixed;
 1495: - IFERR seems to be fixed (in equation evaluation routine);
 1496: - Memory leak is fixed (ADR object type);
 1497: - DATE returns both date and hours;
 1498: - TIME now returns user and system CPU times;
 1499: - MEM is added.
 1500: * Thu Jan 10 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3g (RPL/2)
 1501: - Makefile is improved to support sparc v7 (sun4c), sparc v8 (sun4m) and
 1502: sparc v9 (sun4u). Now, RPL/2 can be built on i386 (i486 is known as i386),
 1503: i586, i686, K6, K7, alpha ev4, alpha ev5, alpha ev56, alpha ev6, sparc v7,
 1504: sparc v8 and sparc v9. Compilation of RPL/2 on my Sun Sparc 2 (sun4c,
 1505: CPU 4/75, 64 MB, 40 MHz with FPU) is a very great mission :
 1506: 
 1507: Newton:[~/rpl/rpl] > time make install
 1508: ...
 1509: real    338m39.623s
 1510: user    324m32.290s
 1511: sys     10m47.380s
 1512: Newton:[~/rpl/rpl] >
 1513: 
 1514: I don't know if you will compile this language on old worstations, but
 1515: it is usable ;-) ;
 1516: - SYSEVAL is improved. An external program can be called without any shell.
 1517: Thus, even if the sticky bit is set, RPL/2 can not give a shell root when
 1518: a SYSEVAL command crashes;
 1519: - minor bug is fixed in recherche_type() (# xxxxb parsing);
 1520: - presence of bootstrap entry point is verified before launching the
 1521: sequencer;
 1522: - minor bug is fixed in formateur_tex() (underscore in mathematical
 1523: expression);
 1524: - Lapack is updated.
 1525: * Thu Jan 3 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3f (RPL/2)
 1526: - IFERR is now known in an expression, but not usable.
 1527: * Mon Dec 31 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3e (RPL/2)
 1528: - several bugs are fixed.
 1529: * Mon Dec 17 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3d (RPL/2)
 1530: - major bugfix in file locking.
 1531: * Fri Dec 14 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3c (RPL/2)
 1532: - minor fixes is system() call.
 1533: * Fri Nov 30 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3b (RPL/2)
 1534: - automatic limitation of the graphical depth due to a limitation (bug ?)
 1535: of gnuplot.
 1536: * Mon Nov 19 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3a (RPL/2)
 1537: - new file temp management.
 1538: * Sun Nov 18 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3 (RPL/2)
 1539: - memory leak is fixed in STO instruction;
 1540: - minor bug in file management is fixed;
 1541: - BACKSPACE is added;
 1542: - VARS is added;
 1543: - file locks are improved.
 1544: * Wed Nov 14 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2l (RPL/2)
 1545: - major bug is fixed (on sparc architecture) and RPL/2 can now run
 1546: on sparc stations;
 1547: - INDEP and DEPND are improved;
 1548: - AXES is added;
 1549: - WRITE, APPEND and REWIND are added.
 1550: * Sun Nov 11 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2k (RPL/2)
 1551: - write is improved ;
 1552: - major bug is found and fixed in copie_objet() with struct_fichier;
 1553: - minor bug is fixed in OPEN function;
 1554: - minor bug is fixed in analyse_syntaxique() subroutine. All commands
 1555: are analysed before starting their executions.
 1556: * Thu Nov 8 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2j (RPL/2)
 1557: - minor bug is fixed in appel_gnuplot();
 1558: - RPL/2 can work without LANG variable.
 1559: * Wed Oct 31 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2i (RPL/2)
 1560: - WAIT function is improved (removing the polling function);
 1561: - LAST stack is not active (default) when rpl is called without the option -i.
 1562: In all other cases, LAST stack is active;
 1563: - Labels can be added on a gnuplot output (function LABEL);
 1564: - LCD-> and ->LCD are added.
 1565: * Sun Oct 21 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2h (RPL/2)
 1566: - minor bug is fixed in TeX output (pi);
 1567: - new english manual is added.
 1568: * Wed Oct 16 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2g (RPL/2)
 1569: - LOCK, WFLOCK and UNLOCK are added. A file is locked when it is opened;
 1570: - VERSION function is added. It returns the version number of the interpreter;
 1571: - minor bug is fixed in evaluation subroutine;
 1572: - english error messages are been fixed.
 1573: * Tue Oct 09 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2f (RPL/2)
 1574: - interrupt subroutine is added;
 1575: - formatted files support is continued.
 1576: * Sun Sep 30 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2e (RPL/2)
 1577: - formateur_fichier.c is added to perform formatted files write.
 1578: * Thu Sep 27 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2d (RPL/2)
 1579: - minors bugfixes in FIX format in formateur_reel() subroutine;
 1580: - new manual page in english;
 1581: - FORMAT intrinsic is added and can read any format for "formatted" file.
 1582: * Sun Sep 23 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2c (RPL/2)
 1583: - OPEN, CLOSE, SYNC, INQUIRE, CREATE and DELETE are tested;
 1584: - a man page in the first manual section is written.
 1585: * Thu Sep 20 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2b (RPL/2)
 1586: - major bugfixes in recherche_type() subroutine: sometimes in interactive mode,
 1587: this routine was be able to forget the last element of a list, a vector or
 1588: a matrix.
 1589: * Mon Sep 17 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2a (RPL/2)
 1590: - OPEN, CLOSE and DELETE are known by the language but not very usable;
 1591: - minor bugfixes in evaluation routine.
 1592: * Sun Sep 16 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2 (RPL/2)
 1593: - major bugfixes in evaluation routine.
 1594: * Sat Sep 15 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1d (RPL/2)
 1595: - conditional structures can be used in equations.
 1596: * Fri Sep 14 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1c (RPL/2)
 1597: - Minor bugfixes in makefile.
 1598: * Sat Sep  8 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1b (RPL/2)
 1599: - CONVERT is written;
 1600: - CYCLE, FOR/NEXT, FOR/STEP, START/NEXT, START/STEP, DO/UNTIL/END and
 1601: WHILE/REPEAT/END can now be used in an equation;
 1602: - I fix some troubles with evaluation subroutine;
 1603: - db3 library is added.
 1604: * Thu Sep  6 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1a (RPL/2)
 1605: - add rplconvert and rplunits sources;
 1606: - add CONVERT definition (but it does not work).
 1607: * Mon Sep  3 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1 (RPL/2)
 1608: - initial public release (GPL).
 1609: * Thu Apr  2 1998 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre0 (RPL/2)
 1610: - RPL is rewritten from scratch and named RPL/2.
 1611: #* 1992 BERTRAND Joël rpl-3.02 (RPL-387)
 1612: #- minor bugfixes.
 1613: #* 1991 BERTRAND Joël rpl-3.01 (RPL-387)
 1614: #- arithmetic processor support is added to improve global performances.
 1615: #* 1991 BERTRAND Joël rpl-3.00 (RPL-386)
 1616: #- idem... but on an i386DX...
 1617: #* 1990 BERTRAND Joël rpl-2 (RPL-6809)
 1618: #- a new release on a more powerfull processor and with new functions and an
 1619: #built-in editor. It has been written on a SMT-Goupil G3-6809 running
 1620: #Flex9 (320 KB of RAM and a graphic card used to draw 512*256 graphics in
 1621: #8 colors)
 1622: #* 1989 BERTRAND Joël rpl-1 (RPL-6502)
 1623: #- initial release (only an historic interest) written on an ORIC Atmos 48K.
 1624: #No graphic was provided.

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