File:  [local] / rpl / ChangeLog
Revision 1.13: download - view: text, annotated - select for diffs - revision graph
Tue Mar 9 10:15:27 2010 UTC (14 years ago) by bertrand
Branches: MAIN
CVS tags: HEAD
Commit final pour 4.0.12.

    1: * Tue Mar 09 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.12 (RPL/2)
    2: - in formatted file, string format returned a variable length string even if
    3: format was 'CHARACTER*(n)' (n characters string). Now, 'CHARACTER*(*)' returns
    4: a variable length string and 'CHARACTER*(n') a fixed length string;
    5: - keyed access files support is added. Currently, only formatted files are
    6: supported;
    7: - direct access files support is added. Currenlty, these files can only be used
    8: in formatted mode;
    9: - virtual variables are now writte in UTF-8 and all special characters
   10: in string are escaped;
   11: - all formatted files are now converted into UTF-8;
   12: - all file and unix socket names created by RPL/2 are now UTF8 compliant;
   13: - RPL/2 tools (rpliconv, rplfile, rplpp and rplconvert) are now checked before
   14: each execution (md5 and sha1 sums) to enhance security. If one of these tools
   15: have been modified between RPL/2 compilation and current execution, RPL/2 aborts
   16: on a non recoverable system error;
   17: - openssl and sqlite3 libraries are added;
   18: - RPL_HOME env variable is added. When RPL/2 is called from librpl, this
   19: variable indicates RPL/2 root directory. If it is not set, root path
   20: is given by configure script (d_exec_path);
   21: * Thu Mar 03 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.11 (RPL/2)
   22: - configure.in and makefile.am's are modified to add Cygwin support. Interix
   23: support is broken;
   24: - memory leak is fixed in recherche_type();
   25: - TeX files are now written in UTF-8 even default locale differs;
   26: - minor bug is fixed in ->STR (escaped characters);
   27: - minor bug is fixed in ->Q intrinsic. Resultat is returned as integer
   28: fraction intead real one;
   29: - SIGN now returns (0,0) instead (nan,nan) when complex argument is null;
   30: - Makefile.am are modified to authorize parallel builds;
   31: - minor bug is fixed in CR intrinsic. CR sends a carriage return to printer
   32: and writes warning to standard output;
   33: * Wed Feb 10 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.10 (RPL/2)
   34: - escape codes are now converted in formateur(), not in recherche_type() to
   35: avoid a minor bug in EDIT and VISIT intrinsics;
   36: - minor bug is fixed in formateur_reel();
   37: - file-5.03 is patched to avoid bus error on systems that require memory
   38: alignment;
   39: - minor bug is fixed in evaluation(). Error returned by RPL/C external functions
   40: were able to be avoided by evaluation routine.
   41: * Tue Jan 26 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.9 (RPL/2)
   42: - New benchmark on same hardware than old one :
   43: cauchy:[~/rpl/bench] > ./bench.rpl 
   44: +++RPL/2 (R) version 4.0.9 (samedi 23/01/2010, 18:06:08 CET)
   45: +++Copyright (C) 1989 à 2009, 2010 BERTRAND Joël
   46: Number of scalar operations per second and per core : 2383016
   47: 
   48: - PULPRFL does not abort on BUG() but on execution error;
   49: - TRIM, REPL and TOKENIZE are added;
   50: - sockets options are now set before bind();
   51: - shutdown() is added to all connected sockets;
   52: - minor bug is fixed in SUB intrinsic (segfault when SUB is called with
   53: list argument and inexistant elements).
   54: * Fri Jan 08 2010 BERTRAND Joël <rpl@systella.fr> rpl-4.0.8 (RPL/2)
   55: - minor bug is fixed in DAEMON intrinsic. When a program was daemonized, all
   56: signals sent to main process were not caught because DAEMON did not replace
   57: old pid by new one;
   58: - major bug is fixed in IFERR/THEN/ELSE/END. Only occurs in expression
   59: evaluation when an error is reported from a subroutine in another subroutine.
   60: For example, error was not caught in following program when it is executed with
   61: -p option :
   62:     TEST << iferr TEST2 then end >>
   63:     TEST2 << 0 inv >>
   64: - major bug is fixed in variable management. Some local variables were
   65: seen as global ones;
   66: - major bug is fixed in rplcore. Rplcore entered in dead lock when
   67: script file contains a multibyte character;
   68: - IN intrinsic is added;
   69: - major bug is fixed in SAME intrinsic : << 1 >> DUP SAME and 'E' DUP SAME
   70: returned false ;
   71: - major bug is fixed in RETURN intrinsic. It only occurs in compiled
   72: programs;
   73: - major bug is fixed in NEG intrinsic. NEG did not make a copy of its arguments;
   74: - regression is fixed in compilation(). "\\" was analysed as '"' '\' '\"' and
   75: strings were never closed;
   76: - some bugs have been fixed in file management;
   77: - RPL/2 can now be run on EBCDIC systems (OS/390);
   78: - major bug is fixed in -A command line option (NULL character is missing);
   79: - minor bug is fixed in rpliconv and RECODE intrinsic. All transliterations are
   80: made by blocks (1024 bytes). When an incomplete multibyte sequence is
   81: encountered at end of block, subroutine aborts with an execution error;
   82: - major bug is fixed in OPEN (TCP/IPv4 sockets).
   83: * Mon Nov 30 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.7 (RPL/2)
   84: - DISP now locks stdout;
   85: - rpliconv is added to replace standard iconv provided by operating system.
   86: Indeed, conversion between different encodages requires transliteration
   87: that is not offered by some iconv utility;
   88: - CURRENC and RECODE intrinsics have been written to allow strings conversions;
   89: - bug is fixed in SYSEVAL. When execvp() returns (for example when arg[0] can
   90: not be found), SYSEVAL enters in a dead lock;
   91: - fprintf is replaced by some functions that allow transliterations between
   92: locales;
   93: - '"' can now be used in strings ("\"");
   94: - iconv is called with -c in preprocessor stage. It is done to write
   95: CGI scripts with RPL/2 because locale charset is set to ANSI_X3.4-1968;
   96: - double free is fixed in liberation() (type SQL, only occurs when locale is
   97: set);
   98: - LOCALIZATION, UCASE and LCASE are added;
   99: - major bug is fixed in EXIT intrinsic that was able to return a false
  100: execution error in compiled scripts (only in DO/UNTIL and REPEAT/WHILE loops);
  101: - major bug is fixed in wrapper_instruction_intrinseque(). When intrinsic() was
  102: used in onLoading from shared library, USE was pushed on stack as algebraic
  103: expression;
  104: - libiconv is upgraded to 1.13.1;
  105: - gnuplot is upgraded to 4.2.6;
  106: - gsl is upgraded to 1.13.
  107: * Mon Sep 28 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.6 (RPL/2)
  108: - pipe() is overwritten by a macro to avoid a system error. Communication
  109: between process are done with pipes and these pipes are managed by a
  110: specific asynchrone thread. If a script try to create more threads than
  111: management thread can destroy, you can quickly achieve maximum number of
  112: opened files and pipe() shall return a system error. This macro tries to create
  113: pipes. If pipe() function returns an error, macro waits and retries. If
  114: number of retries is greater than a hardcoded value, macro returns an error;
  115: - major bug (deadlock) is fixed in process and thread management. I hope
  116: this bug shall be the last one;
  117: - major bug is fixed in DET intrinsic (determinant was computed without LU
  118: diagonalization);
  119: - SWAPCNTXT is added;
  120: - minor bug is fixed in Makefile.am (licences rule).
  121: * Wed Sep 09 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.5 (RPL/2)
  122: - some bugfixes are added in process management;
  123: - all process management is rewritten to avoid usage of defunct process
  124: or thread number;
  125: - new major bug is fixed in interruptions.c. Sometimes, when retrait_thread()
  126: was called before a pending interruption5 (SIGFSTOP), signal handler uses
  127: a freed semaphore and corrupts heap;
  128: - CLRERR is added to erase previous errors;
  129: - ERRN and ERRM return exception message and number;
  130: - major bug is fixed in interruptions.c. All signal are now bufferised
  131: when semaphore_liste_threads is null to avoid deadlock. This bug only
  132: occured when STOP was sent to a dying thread or process (when this thread or
  133: process was running retrait_thread());
  134: - matrix rank is computed before matrix inversion;
  135: - file locks are added to stdin and stdout. stderr is not locked because
  136: all messages written by signal handlers are sent to stderr;
  137: - configure.in script is modified to test gcc version and avoid a bug in
  138: gcc older than 4.4;
  139: - some benchmarks have been done :
  140: 
  141: cauchy:[~/rpl/bench] > ./bench.rpl 
  142: +++RPL/2 (R) version 4.0.5 (mardi 04/08/2009, 18:23:07 CEST)
  143: +++Copyright (C) 1989 à 2008, 2009 BERTRAND Joël
  144: Number of scalar operations per second and per core : 2109867
  145: 
  146: Workstation :
  147: cauchy:[~/rpl/build] > uname -a
  148: Linux cauchy 2.6.30.1 #1 SMP PREEMPT Thu Jul 16 09:49:46 2009 x86_64 GNU/Linux
  149: cauchy:[~/rpl/build] > cat /proc/cpuinfo | grep "model name"
  150: model name      : Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz
  151: model name      : Intel(R) Core(TM)2 Duo CPU     T7500  @ 2.20GHz
  152: cauchy:[~/rpl/build] > gfortran -v 2>&1 | grep "gcc version"
  153: gcc version 4.3.3 (Debian 4.3.3-14) 
  154: cauchy:[~/rpl/build] >
  155: 
  156: - SVL and SVD are added;
  157: - COND and RANK are added;
  158: - DIAG-> and ->DIAG are added;
  159: - major bug is fixed in DET intrinsic. DET is rewritten to avoid usage of
  160: eigenvalues. In a first time, matrix rank is estimated to force determinant
  161: to zero if matrix is rank deficient. If not, a PLU decomposition is done to
  162: compute determinant;
  163: - QR matrix decomposition is added;
  164: - LQ matrix decomposition is added;
  165: - Fortran90 files are rewritten to use Fortran2003 bind(C) statement and
  166: Fortran preprocessor;
  167: - default compilation options are now -Wall -Wextra -Wno-pointer-sign
  168: -Wno-unused-parameter;
  169: - all mathematical exceptions are now signaled by exceptions instead of
  170: execution error;
  171: - minor bug is fixed in both CSTOP and RSTOP intrinsics. Without this fix, you
  172: can call twice CSTOP without RSTOP;
  173: - named semaphore support is added (CRSMPHR, CLRSMPHR, SMHRDECR, SMPHRINCR,
  174: SMPHRTRYDECR, SMPHGETV).
  175: * Fri Jul 24 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.4 (RPL/2)
  176: - semaphore is added in interruptions.c to avoid segmentation fault when STOP
  177: signal is sent to a dying thread. Some mutexes are replaced by semaphores too
  178: to be used in signal handlers;
  179: - major bug (memory corruption) is fixed in COL- intrinsic;
  180: - minor bug is fixed in ALARM and WAIT. These temporisations stopped when a
  181: software interrupt was caught;
  182: - rplpp man page is added.
  183: * Fri Jul 17 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.3 (RPL/2)
  184: - minor bug is fixed in WRITE (SIGPIPE is ignored to catch error without
  185: process termination);
  186: - major bug is fixed in FUSE intrinsic (FUSE kills itself and do not kill
  187: its parent);
  188: - a mutex to protect fork() syscall is added;
  189: - all mutexes are unlocked after fork() in DETACH;
  190: - minor bug (double free corruption) is fixed in CLOSE intrinsic;
  191: - major bug is fixed in lecture_pipe when a nullified list is sent into a pipe;
  192: - WORKDIR intrinsic is added;
  193: - Level 0 variables are shared between all threads without copy. Indeed,
  194: there variables are not modifiable and only contains static user definitions;
  195: - branches prediction is added in THEN, ELSE, ELSEIF and REPEAT intrinsics;
  196: - FORTRAN 77 file management subroutines are rewritten in pure C due to
  197: FORTRAN string management. C/FORTRAN 77 string interfaces are broken
  198: in some cases (gcc/gfortran/libc/OS and arch conjonction);
  199: - a memory leak is fixed in REMOVE intrinsic;
  200: - major bug is fixed in MySQL driver (segfault due to a bug in mysql_init()
  201: and due to a libmysqlclient that is not thread safe).
  202: * Wen Jun 10 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.2 (RPL/2)
  203: - new enhanced allocator is written for regular variables, static variables and
  204: shared variables;
  205: - major bug is fixed in src/interruptions.c. This file did not compile
  206: when SQL support was not enabled;
  207: - new allocator is written for system stack and last stack;
  208: - --enable-profile flag is added to configure script. When this flag is
  209: enabled, rpl is built with -pg option;
  210: - SIGFSTP (from Solaris'TERMIO) is caught. On Solaris 10, all process receive
  211: SIGFSTP (with a nullified siginfo structure) instead of SIGHUP when control
  212: process is killed;
  213: - abs() macro is modified to avoid multiple evaluation. Your C compiler has to
  214: know typeof() intrinsic function. This function is not standard but exists
  215: under Sun Studio, gcc, and maybe some others compilers. If this function does
  216: not exist on your compiler, you can change its definition by old one in
  217: src/rpl.h;
  218: - fflush() can now be interrupted by signal (SunOS);
  219: - fflush(NULL) is called before all fork() occurrences;
  220: - generators returned by RDGN help are sorted;
  221: - Lapack is now 3.2.1.
  222: * Mon May 18 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.1 (RPL/2)
  223: - bug is fixed in src/generateurs_aleatoires.awk. It only occurs when RPL/2 is
  224: built under Solaris.
  225: * Wed May 5 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0 (RPL/2)
  226: - major bug is fixed in matrix inversion (due to an inversion between pointer
  227: and object copies);
  228: - RDGN is added to use some different random number generators. See HELP RDGN;
  229: - code analysis is rewritten from scratch to be more efficient and mode
  230: expandable;
  231: - minor bug (segfault in interruption1) is fixed. It only occurs on Solaris
  232: that can returns a nullified siginfo pointer when SIGINT is sent by kernel
  233: keyboard driver;
  234: - gnuplot is now 4.2.5;
  235: - readline is upgraded to 6.0;
  236: - file is upgraded to 5.0;
  237: - Signal handlers are rewritten to send signal to main thread when a signal
  238: is send from an external process;
  239: - configure.in is modified to avoid a libc bug on Solaris (free() can enter in
  240: deadlock when a huge amount of threads is launched);
  241: - minor bug is fixed in boath START and FOR intrinsic. Only occurs when
  242: arguments types are unsupported;
  243: - PLOT instrinsic is added (usage: LINE and MARK do not draw anything. All
  244: data are buffered. PLOT is used to draw these objects.);
  245: - MARK instrinsic is added;
  246: - new allocator mechanism is written;
  247: - some regression bugs have been fixed, some memory leaks too.
  248: * Wed Jan 28 2009 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.9 (RPL/2)
  249: - an estimation of future stack elements is added to avoid some costly memory
  250: allocations. This function has a positive impact on execution speed;
  251: - PSHPRFL and PULPRFL have been added;
  252: - RPL/2 can be built on Solaris 64 bits with some minor scripts alterations.
  253: See README for more explanations;
  254: - MTXSTATUS intrinsic is added;
  255: - YIELD intrinsic is added;
  256: - ERRM is fixed. In some cases, ERRM uses some uninitialized pointers;
  257: - SHARED and PRIVATE intrinsics have been added. A shared variable is a
  258: static variable that is shared by multiple threads;
  259: - '->' intrinsic is improved. All object copies have been avoided;
  260: - -n flag is added to catch HUP signal. stderr and stdout are redirected
  261: to a file, stdin is redirected to /dev/null when control process is killed;
  262: - a mutex is added to each object (before this modification,
  263: RPL/2 used a global mutex and performances in multithreaded programs were very
  264: poor.);
  265: - ALARM is now interruptible;
  266: - both PUT and PUTI intrinsics are improved and do not copy list and table
  267: when nombre_occurrences == 1;
  268: - COPY intrinsic is added. Argument (that can be pointed from some objects)
  269: is replaced by a new copy of itself;
  270: - memory leak is fixed in sequenceur(). It only occurs when an execution error
  271: is caught from interactive mode;
  272: - mutexes have been added (CRMTX, CLRMTX, MTXLOCK, MTXUNLOCK);
  273: - new mutex type is added;
  274: - profile statistics have been added. See -P option;
  275: - major bug is fixed in analyse_syntaxique();
  276: - new SQL type is added;
  277: - due to a trouble in libpq in multithreaded context, SQL intrinsic is split
  278: in three new intrinsics : SQLCONNECT, SQLQUERY and SQLDISCONNECT. Please note
  279: that all programs that worked with old SQL intrinsic can now work with
  280: SQLQUERY. With all new programs, you can open a real connection to databases;
  281: - NRPROC is added. This new intrinsic is used to catch error from child
  282: process. Without NRPROC, any errors returned by child process cause
  283: main process to abort;
  284: - SPAWN is added. This new intrinsic is used to launch a new thread (DETACH
  285: starts a new process). There are no mutexes in RPL/2 because all spawned process
  286: use specific context. Nevertheless, shared variables and associated mutexes
  287: should be added;
  288: - -D flag and DAEMONIZE intrinsic have been added;
  289: - REPEAT, THEN, ELSE and ELSEIF intrinsics are rewritten to be more efficient;
  290: - autoconf script is modified to handle mysql and postgresql on non standard
  291: directories;
  292: - -t flag is fixed ('\0' is missing...);
  293: - SWI and SEND pipes have been modified to be more robust on systems where
  294: getpid() can return (pid_t) -1 or (pid_t) -2 value;
  295: - major bug is fixed in REPEAT intrinsic. Only occurs in compiled mode;
  296: - all but jump variables are removed from source. All signal handlers now
  297: use encapsulated variables and signals are caught by thread;
  298: - major bug is discovered in ->LCD. Both LCD-> and ->LCD have been fixed;
  299: - NEWPLANE is added;
  300: - LINE is added;
  301: - DGTIZ is added;
  302: - major bug is fixed in ROW-> intrinsic (comes from new garbage collector);
  303: - lot of multiprocessing related bugs have been fixed; That was a huge work but
  304: it's done. Data integrity is now respected during transmission (POKE, SEND and
  305: SWI);
  306: - ITRACE is added. This intrinsic is only used to debug internal structures and
  307: should not be used in regular programs;
  308: - SWISTATUS is written;
  309: - WFACK is written;
  310: - rplcore files are now able to handle compilation errors;
  311: - rplcore files are now able to handle evaluation and interruption errors;
  312: - SORT can now be used on table;
  313: - tables can now be sent by POKE and SEND instrinsics;
  314: - software interrupts do not inherit IFERR controls;
  315: - LOGGER intrinsic is added;
  316: - All WF* intrinsics but WFSOCK are made interruptible;
  317: - ISWI intrinsic is added. Current interrupt is marked as 'interruptible';
  318: - tables can be used with SAME intrinsic;
  319: - minor bug is fixed in recherche_variable(). Only occurs when an error
  320: is caught;
  321: - external functions can now be used in expressions;
  322: - major bug (deadlock) is fixed in WFPOKE intrinsic;
  323: - some mistakes have been fixed under Solaris;
  324: - major bug is fixed in RETURN intrinsic (only occurs when evaluation and
  325: program modes are mixed);
  326: - major bug (dead lock) is fixed in gestion_processus.c;
  327: - major bug is fixed in WFPROC;
  328: - rplc, rpllink and mkrplso manpages are added;
  329: - rpltags tool and manpage are added;
  330: - WFLOCK is fixed;
  331: - RPL/2 kills now all process on error;
  332: - major bug (segfault) is fixed in REMOVE intrinsic.
  333: * Mon Jul 28 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.8 (RPL/2)
  334: - configure script is modified to check mysql and postgresql libraries
  335: on all standard locations. Tested and works on FreeBSD, Solaris and Linux
  336: Debian;
  337: - Tables are allowed in eval ( <[ 1 ]> 't' sto 't(1)' eval );
  338: - ->TABLE and TABLE-> intrinsics are added;
  339: - major bug is fixed in recherche_type(). Only occurs when rpl executes
  340: precompiled scripts;
  341: - new type is added: table with <[ ]> delimiters:
  342: RPL/2> { 2 3 2 } crtab
  343: 
  344: 1: <[ <[ <[ { }
  345:             { } ]>
  346:          <[ { }
  347:             { } ]>
  348:          <[ { }
  349:             { } ]> ]>
  350:       <[ <[ { }
  351:             { } ]>
  352:          <[ { }
  353:             { } ]>
  354:          <[ { }
  355:             { } ]> ]> ]>
  356: 
  357: CRTAB new intrinsic creates a regular table. By default, all elements are
  358: nullified lists;
  359: - rplexternals.h is modified and improved;
  360: - GNU File (renamed as rplfile) cannot be built due to a bug in libtoolize and
  361: configure script.
  362: * Mon Jun 23 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.7 (RPL/2)
  363: - libiconv is added (iconv library exists on some systems but implemantations
  364: differ and RPL/2 can crash);
  365: - --enable-encoding is added to configure script to force system encoding.
  366: Enconding detection does not work on OpenBSD;
  367: - internal file utility is shipped and used to avoid xBSD file mistakes;
  368: - GSL 1.11 and gnuplot 4.2.3 are now used;
  369: - src/Makefile.am is modified to built RPL/2 ons Solaris 10/sparc;
  370: - all but user's messages are written on stderr;
  371: - DUPCNTXT and DROPCNTXT are added to handle more efficiently contexts;
  372: - SCHED is added. Whit SCHED, you can limit CPU ressource by RPL/2 process;
  373: - FUSE, RFUSE and CLRFUSE have been added;
  374: - new bug discovered on NetBSD. sigpending() does not return any signal, thus
  375: DETACH intrinsic enters in a definitive dead lock. I have no idea to write a
  376: workaround for this major bug. Nevertheless, all others capabilities seems to
  377: work fine;
  378: - '->' is modified to return error when program tries to initialiaze two
  379: variables with the same name like
  380: 1 0 -> I I << ... >>;
  381: - CSTOP and RSTOP have been added (catch and release stop signal);
  382: - CONTINUE is added to continue a pending process halted by SUSPEND;
  383: - SUSPEND is modified to be stopped by SIGFSTOP;
  384: - src/Makefile.am is modified to avoid //TRANSLIT flag on systems that don't
  385: support GNU iconv;
  386: - configure.in script is modified to avoid bugs when --with-postgresql and
  387: --with-mysql are specified;
  388: - TRNC is written;
  389: - minor bug is fixed in both IFT and IFTE. Returned expression has to be
  390: evaluated.
  391: * Fri Apr 11 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.6 (RPL/2)
  392: - SIGPIPE signal handler is modified to avoid abort process when POKE tries
  393: to write data into a pipe without reader;
  394: - major bug is fixed in RETURN intrinsic. When RETURN was called from a detached
  395: process without -p modifier, it can send an ABORT signal instead a KILL one;
  396: - PEEK, POKE and WFPOKE new intrinsics are written;
  397: - major bug due to new garbage collector is fixed in rplexternals.h (double free
  398: corruption);
  399: - CLRCNTXT is added (clear contexts);
  400: - VERIFY intrinsic is written;
  401: - PSHCNTXT and PULCNTXT are added (PSHCNTXT pushes context on an
  402: internal contexts stack, PULCNTXT pulls contexts from this internal stack).
  403: Main usages of these intrinsics are in conjonction with IFERR or with
  404: software interrupts;
  405: - HEAD, TAIL and REVLIST intrinsics are added;
  406: - function pointers have been added to function description;
  407: - new analyse() routine is written. All instrinsics are now in a N-tree;
  408: - software interrupts have been fixed;
  409: - multitasking capabilities have been modified to be usable on NetBSD. All real
  410: time signals have been removed;
  411: - major bugs are fixed in multitasking (mutex trouble _and_ segmentation fault);
  412: - minor bug is fixed in STR->. STR-> could return a system error instead an
  413: execution one;
  414: - first bug due to new garbage collector is fixed in '+' ({ } { } +) and in
  415: '-' intrinsics;
  416: - PostgreSQL support is written.
  417: * Mon Mar 17 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.5 (RPL/2)
  418: - locale can now be specified in SQL intrinsic :
  419: { "mysql:iso-8859-1" "server" "database" ... };
  420: - major bug is fixed un analyse_algebrique(). When DISP printed an algebraic
  421: object, 'DISP()' was pushed in stack;
  422: - same major bug is fixed in <, >, <=, >= and <>;
  423: - major bug fixed in formateur() (segfault when a symbol is used without "'");
  424: - major bug is fixed in DUPN intrinsic;
  425: - when software interrupt (SWI) is evaluated, SWI pushs process id on stack
  426: before starting interrupt evaluation;
  427: - -f parameter is added when iconv is called;
  428: - as old file program was bugged, a new option is added to configure script.
  429: When configure is called with --disable-encoding-autodetection, make does not
  430: try to detect source encoding. Please, do not use if RPL/2 can be built
  431: without this option !
  432: - new garbage collector (and more efficient) is written;
  433: - configure script is modified to be usable on NetBSD 4.0, but as NetBSD does
  434: not support real time signals, RPL/2 cannot use multitasking functions;
  435: - error returned by preprocessor are now catched by RPL/2;
  436: - -p option is added. With this option, all scripts are compiled before
  437: RPL/2 starts evaluation. HALT cannot be used with -p, but all programs run
  438: 40% faster;
  439: - read and write operations in pipe() are rewritten to be sure that such
  440: operations are atomic;
  441: - minor bug is fixed in LOGSCALE. With {} LOGSCALE, all scales have to be
  442: linear;
  443: - major bug is fixed in gestion_processus.c (some pipes were not closed).
  444: * Sat Jan 5 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.4 (RPL/2)
  445: - major bugs have been fixed in software interrupt management.
  446: * Fri Jan 4 2008 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.3 (RPL/2)
  447: - JDATE and RDATE are written;
  448: - minor bug (segfault) is fixed in EXSUB. It only occurs when EXSUB is executed
  449: with wrong arguments;
  450: - KILL now kills current process, ABORT kills program;
  451: - software interrupts support is added (SWI, WFSWI, SWILOCK, SWIUNLOCK,
  452: SWIQUEUE, STOSWI, RCLSWI, CLRSWI);
  453: - major bug is fixed in SQL intrinsic (argument types);
  454: - system stack is now written in core file;
  455: - ALARM is added;
  456: - nanosleep() now replaces sleep() and usleep() system calls;
  457: - _GNU_SOURCE is added to rpl.h.
  458: * Fri Nov 30 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.2 (RPL/2)
  459: - License is changed. Now RPL/2 license is CeCILL (GPL compliant);
  460: - EXGET adn EXSUB are added;
  461: - minor bug is fixed in recherche_type(). { << } has to return an error.
  462: '<<' and '>>' are both functions _and_ delimiters. Thus { IF } is
  463: acceptable, but { >> } isn't;
  464: - GSL is now 1.10, gnuplot 4.2.2 and units 1.87;
  465: - OBGET and OBSUB intrinsics are added;
  466: - src/Makefile.am minor bug is fixed (make clean deleted src/rpl.xpm);
  467: - WAIT intrinsic is modified to use sleep() and usleep() if delay is
  468: greater than one second. On some systems, usleep argument must be lower
  469: than 1E6;
  470: - numeric and character formats are now tested;
  471: - -A flag is added. -A is used to give command line parameters to main
  472: routine. Example:
  473: rayleigh:[~/rpl-4.0.0.prerelease.2/examples] > ./test3.rpl -A "<< X sin >>"
  474: +++RPL/2 version 4.0.0.prerelease.2 (vendredi 05.10.2007, 19:03:01 CEST)
  475: +++Copyright (C) 1989 à 2006, 2007 BERTRAND Joël
  476: << 'X' SIN >>
  477: rayleigh:[~/rpl-4.0.0.prerelease.2/examples] > cat test3.rpl 
  478: #!/usr/local/bin/rpl -s
  479: 
  480: TEST
  481: <<
  482:     disp
  483: >>
  484: - minor bug (segfault) is fixed in encart() routine (splash screen). Child
  485: process ended with segfault due to a mistake in Motif widget cleaning
  486: process;
  487: - major bug is fixed in DETACH intrinsic. Child process were locked when
  488: they were started with a locked mutex that comes from its father;
  489: - ctrl+C can now kill all child process;
  490: - WFPROC and WFDATA are rewritten;
  491: - RETURN is fixed to be usable in detached process;
  492: - HALT is not exported to child process;
  493: - FLOW filetype is added;
  494: - Makefiles are modified to support gcc-4.2 and gfortran-4.2;
  495: - socket support (Unix, IPv4, IPv6, STREAM, DATAGRAM, ROBUST DATAGRAM,
  496: SEQUENTIAL DATAGRAM, RAW) is added. Warning: IPv6 sockets have not been tested
  497: because I don't have any IPv6 compliant server, but they should work.
  498: * Mon Sep 10 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.1 (RPL/2)
  499: - library management is rewritten from scratch. EXTERNAL is removed and
  500: EXTERNALS is added. Now, all exported symbols are sent to RPL/2 when
  501: library is loaded;
  502: - OPEN arguments are changed;
  503: - EXTERNAL now checks availability of external functions;
  504: - number of arguments is verified in analyse_algebrique().
  505: 'SIN(A+X,2)' is now refused because SIN requires only one argument;
  506: - all but lapack symbols are exported from librpl with librpl, f77 or f90
  507: prefix;
  508: - minor bug is fixed in formateur() (AND and OR requires parenthesis);
  509: - rplexternals.h header file is added; Now, it is very easy to write
  510: external functions;
  511: - memory leak is fixed in analyse_algebrique();
  512: - minor bug (symbole flag) is fixed in sequenceur.c and types.c;
  513: - temp file was not removed when an error occurs in EDIT or VISIT;
  514: - 'name' should not returned a function ("FCT" object);
  515: - -rdynamic is added to src/Makefile.am.
  516: * Mon Jul 23 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.0.0.prerelease.0 (RPL/2)
  517: - Major bug is fixed in interface_tex.c. When there are errors in latex
  518: file, latex command waits for input on its command line;
  519: - major bug is fixed in tex.h (multiline strings);
  520: - examples subdir is added;
  521: - major bug is fixed in recherche_variable(). When an expression is evaluated
  522: in a function, all variables set in this function must be visible in
  523: expression. Thus, << I -> 3 << << I >> eval >> must return 3, not 'I';
  524: - LAST stack is saved in rplcore;
  525: - major bug is fixed in ->HMS. It only occurs when argument type is not
  526: integer or real;
  527: - major bug (segfault) is fixed when rpl is called with empty file;
  528: - libtool support is removed. Two new scripts (rplc and rpllink) are provided
  529: to use librpl.a;
  530: - automake scripts are rewritten to avoid a misconfiguration of librpl.a
  531: when -j make option is used;
  532: - trace output now contains PID;
  533: - rpl-core is renamed in rpl-code-$PID;
  534: - rplc and rpllink scripts can now sompile and build C and Fortran
  535: executables with librpl.a;
  536: - New classification, only a working simplification() routine is
  537: required to announce 4.0.0.final;
  538: - librpl entry point is modified to return results as strings array;
  539: - -S option is added;
  540: - due to a major bug in libtool, libtool is removed from autoconf/automake
  541: scripts;
  542: - VERSION is modified to return a list.
  543: * Tue Jul 17 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8x (RPL/2)
  544: - major regression bug is fixed in PRINT due to mistake in latex pathes;
  545: - gnuplot does not have to be built if --disable-embedded-gnuplot is set;
  546: - new prompt ("RPL/2> ") is used for interactive mode;
  547: - ARCCOS, ARCSIN, ARCTG, ARGCH, ARGSH, ARGTH, CH, SH, TH and TG intrinsics
  548: are removed, because all of these intrinsics have two forms. ARCCOS is
  549: the same than ACOS, TAN=TG, COSH=CH. Please adapt your scripts;
  550: - gnuplot compilation does not have to be done when disable-gnuplot is set;
  551: - major bug is fixed in RECV that avoid usage of multitasking.
  552: * Tue Jul 10 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8w (RPL/2)
  553: - False error (system error) was reported by recherche_type();
  554: - recherche_type() returns syntax error if a list is included in
  555: an algebraic expression;
  556: - --enable-debug is modified. Now, return can be defined to print
  557: on stdout its position in source code (line and function);
  558: - minor bug is fixed in recherche_type(). Don't forget that space
  559: are not significant in algebraic expression:
  560: '12 3+ 12    X' is the same expression than '123+12X';
  561: - src/Makefile.am is modified to avoid double compilation process;
  562: - --enable-final-run-path is added to configure.in script;
  563: - STATIC is modified to declare static variables in expression. Warning: static
  564: variables used in expressions are deleted when evaluation of this expression
  565: ends;
  566: - MEM does not report static variable sizes;
  567: - minor bug is fixed in HELP intrinsic. When the last instruction was not
  568: known, HELP function was pushed in operational stack. HELP did not work
  569: when there were space on input line.
  570: * Mon May 28 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8v (RPL/2)
  571: - DATE is modified: reduced julian days is replaced by fraction part
  572: of julian days. Old field used by julian days is now integer part of julian
  573: days;
  574: - CONVERT intrinsic is rewritten to accept absolute path in popen;
  575: - automake scripts are modified to delete src/lock file if build process aborts;
  576: - rplargs.h directly includes rpl.h;
  577: - absolute pathes are added to all external program files (rplplot, rplpp...);
  578: - intrinsic functions are case sensitive. External functions are case
  579: unsensitive. A minor bug is fixed in recherche_type() because all external
  580: functions were case unsensitive when they were evaluated from RPN expressions;
  581: - HELP function is rewritten to be more friendly (a la OpenVMS);
  582: - external wrapper (rplplot) is written to force usage of gnuplot provided
  583: by RPL/2 if it is built during build process. If this build does not exist,
  584: it tries to launch regular gnuplot;
  585: - gnuplot is added to source tree to avoid some trouble between preinstalled
  586: gnuplot and release used by RPL/2. This addition to source tree is
  587: required by some incompatibility between gnuplot releases;
  588: - Lapack is upgraded to 3.1.1 release;
  589: - GSL is upgraded to 1.9 revision;
  590: - RPL_TMP_PATH env variable is added to specify the path of tempfiles. If
  591: it is not set, /tmp is used. If /tmp is not writable, /var/tmp is used. If
  592: not, ./ but RPL/2 can hang with a fatal error if this last location is
  593: not writable;
  594: - major regression is fixed in SYSEVAL intrinsic due to introduction of
  595: error scrutation.
  596: * Sat Mar 24 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8u (RPL/2)
  597: - SYSEVAL is modified to return an error when execvp() syscall cannot
  598: execute its arguments;
  599: - -hard-float sparc option is remove from mkrplso;
  600: - major bug is fixed in SQL intrinsic that hangs when query did not return
  601: any values (for exemple INSERT);
  602: - escape sequences can be used in SYSEVAL argument like "echo \"string\""
  603: SYSEVAL;
  604: - graphic and PostScript outputs are now cleared in child process;
  605: - locales are now used by preprocessor;
  606: - major bug is fixed in impression_tex(). PRINT did not work due to a bug
  607: introduced by multitasking code;
  608: - SORT can now use name as its argument.
  609: * Sun Jan 21 2007 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8t (RPL/2)
  610: - Variable management has been rewritten and some tests have been done. Now,
  611: it is possible to execute:
  612: 
  613: #!/usr/local/bin/rpl -sc
  614: 
  615: TEST
  616: <<
  617:     1 1000 start VAR_S VAR_S2 next
  618: >>
  619: 
  620: VAR_S
  621: <<
  622:     static 3 -> C << C disp 'C' incr if C 10 > then 'C' volatile end >>
  623: >>
  624: 
  625: VAR_S2
  626: <<
  627:     static 3 -> C << C disp 'C' decr >>
  628: >>
  629: 
  630: - configure.in script is added in lapack subtree;
  631: - VARS is modified to display variables status (LOCKED/UNLOCKED and
  632: STATIC/VOLATILE/PARAMETER/VARIABLE);
  633: - STATIC and VOLATILE intrinsics are added to specify static variables. A
  634: static variable can be transformed into volatile with VOLATILE.
  635: With STATIC, next variables created by '->' are static;
  636: - PROTECT and UNPROTECT are added to protect variables against write
  637: or purge actions. New PARAMETER and VARIABLE intrinsics are modified
  638: versions of PROTECT and UNPROTECT that only deal with global variables
  639: (see RCL/SAVE);
  640: - variable management routines have been rewritten. The new ones are
  641: uncompatible with the old ones. Before these changes, a local variable
  642: was exported to a child subroutine, but cannot be modified into this
  643: child subroutine. Now, a local variable is accessible only in its subroutine;
  644: - SAVE intrinsic is added to manipulate global variables;
  645: - SUSPEND is written. RPL/2 waits for a SIGCONT signal;
  646: - SORT, COL->, ->COL, ROW->, ROW-> intrinsics are written;
  647: - Makefile.am are improved;
  648: - minor bug is fixed in ->list and ->array. Without any argument, these
  649: intrinsic only send a SIGSEGV;
  650: - ncurses is updated to release 5.6;
  651: - lapack is updated to 3.1.0.
  652: * Sun Dec 31 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8s (RPL/2)
  653: - default CFLAGS/FFLAGS/FCFLAGS are modified due to a bug in gcc-sparc64
  654: that avoid a complete build;
  655: - CTRL+Z and CTRL+C signals only perform actions on main process;
  656: - major bugs are fixed in multitasking capabilities (some mistakes with
  657: mutexes and several terminated child process cannot be closed by the
  658: operating system);
  659: - minor bug fixed in SCLS (mistake between main and auxiliary axes);
  660: - variables are now written in rpl-core file;
  661: - NEG is modified to return 0 instead -0 when its argument is real or complex
  662: number;
  663: - ROW+ intrinsic can now be used on empty matrix without dimension error:
  664: [[]] 1 [[ 1 2 ]] row+;
  665: - major bug is fixed in SUB intrinsic. It only occurs with lists when
  666: it tries to returns invalid elements like { } 1 2 sub;
  667: - major bug is fixed in ROW- intrinsic;
  668: - major bug is fixed in ROW+ intrinsic.
  669: * Sat Dec 02 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8r (RPL/2)
  670: - creation_nom_fichier() is rewritten to force all process to create
  671: different file names;
  672: - RANLUX is removed to use GSL library and avoid a bug in gfortran-4.1;
  673: - readline-5.2 and units-1.86 are now used;
  674: - SEQUENCE statement is added in fonctions_speciales.f90 to fix a build
  675: failure.
  676: * Mon Oct 23 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8q (RPL/2)
  677: - wfproc is rewritten to avoid a dead lock;
  678: - major mistake is fixed in both sommation_vecteur_reel() and
  679: sommation_vecteur_complexe();
  680: - multitasking is rewritten from scratch to fix some mistakes with
  681: multithreading. DETACH, SEND and RECV now use four real time signals to
  682: perform a better task synchronization;
  683: - some bugs introduced by locales specific compilations are fixed;
  684: - major memory corruption is fixed in DEPND;
  685: - HELP intrinsic is modified to print a classified output.
  686: * Mon Aug 12 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8p (RPL/2)
  687: - major memory leak is fixed in DETACH intrinsic. Files were closed by
  688: both childs and parent;
  689: - bug that avoids usage of Motif is fixed in configure.in;
  690: - makefile's are modified to build RPL/2 with other locale than ISO-8859;
  691: - db is removed from source tree due to some compilation troubles (db's
  692: autoconf script is broken);
  693: - sdb is removed from source tree due to some memory leaks and some troubles
  694: with its configure script. New SQL routines are written, but only MYSQL
  695: subsystem is available. Now, SQL can be used without memory leak;
  696: - major bug is fixed in evaluation() subroutine. Value of error flag
  697: was not returned in some cases;
  698: - FACT intrinsic does not accept real arguments anymore due to the new intrinsic
  699: GAMMA;
  700: - GAMMA intrinsic is added (complex function) ;
  701: - autoconf/automake scripts are modified to compile F90 sources;
  702: - src/distributions.f is replaced by src/distributions.f90. All Numerical
  703: Recipes references are avoided to use GSL;
  704: - GSL is upgraded to 1.8 release;
  705: - -lz is added in src/Makefile.am to fix a mistake in sparc32.
  706: * Mon Apr 10 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8o (RPL/2)
  707: - fft.f is removed. Now FFT intrinsic uses dft subroutine;
  708: - Sparc64 optimizations are modified. Now gcc-4.0 can be used to build RPL/2 on
  709: Sparc64. Same modifications are done on sparc32;
  710: - major bug are fixed in both PLOTTER and HISTOGRAM intrinsics
  711: (interface with GNUplot).
  712: - major bugs are fixed in USE/REMOVE intrinsics (system stack corruption);
  713: - corruption of last stack is fixed in mclrin (only occurs when an error is
  714: caught);
  715: - major bug (in a malloc condition) is fixed in derivation().
  716: * Tue Jan 07 2006 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8n (RPL/2)
  717: - configure script and makefiles are modified to be usable with automake
  718: 1.9.6 (GNU), libtool 1.5.20 (GNU) and autoconf 2.59 (GNU).
  719: - gestion_fichiers() prototype is modified to be built by gfortran. Now,
  720: gfortran is the default compiler for FORTRAN code included in RPL/2;
  721: - libdb is added to perform indexed file access;
  722: - SQL interfaces are added (SQL intrinsic). Only mysql is supported;
  723: - minor bug is discovered and fixed in matrix multiplication (precision);
  724: - rpl.spec.in and debian directory are deleted due to some mistakes in the
  725: scripts required to build packages.
  726: * Tue Nov 15 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8m (RPL/2)
  727: - major bug is fixed in IFERR/THEN/(ELSE)/END structure. It occured when an
  728: error is caught before a regular IF/THEN/(ELSE)/END structure in
  729: IFERR/THEN/(ELSE)/END structure;
  730: - chmod 755 debian/rules is done by makefile;
  731: - major bug is fixed in recherche_instruction_suivante():
  732: +++"123 " str->
  733: +++Erreur : Argument invalide pour la commande << "123 " str-> >>
  734: Before this fix, it was impossible to use a command line that ends with spaces.
  735: * Sat Oct 29 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8l (RPL/2)
  736: - SELECT/CASE/DEFAULT/END is modified. Now, it is impossible to write:
  737: SELECT
  738:     <case>
  739:     CASE <test> THEN <expr> END
  740:     ...
  741:     DEFAULT
  742:     DEFAULT <- two DEFAULT's
  743: END
  744: 
  745: or
  746: 
  747: SELECT
  748:     <case>
  749:     CASE <test> THEN <expr> END
  750:     ...
  751:     DEFAULT
  752:     ...
  753:     CASE <test> THEN <expr> END <- CASE statement after DEFAULT
  754: END
  755: - major bug is fixed (in (unsigned char) getc()). It only occurs when RPL/2 is
  756: built with gcc-4.0.
  757: - configure.in is modified to be usable with gcc-4.0.
  758: * Mon Oct 3 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8k (RPL/2)
  759: - segmentation fault occurs in both PROMPT and INPUT when readline returns
  760: NULL (ctrl^D). This trouble is now fixed;
  761: - major bug is fixed in DATE intrinsic (julian days and reduced julian days);
  762: - stderr of rplpp is now caught;
  763: - SYSEVAL is modified to use stdin, stdout and stderr:
  764: ESSAI
  765: <<
  766:     // Only stdout and stderr
  767:     "ls" dup disp syseval
  768:     clmf
  769:     // Now with stdin ("zer\naze\n")
  770:     { "cat" "zer" "aze" } dup disp syseval
  771:     clmf
  772: >>
  773: - GSL is upgraded to 1.7.
  774: * Thu Sep 29 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8j (RPL/2)
  775: - SYSEVAL is modified. It now returns stdout and stderr in a list;
  776: - minor memory leak is fixed in recherche_instruction_suivante() subroutine.
  777: * Thu Aug 4 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8i (RPL/2)
  778: - internal file descriptors are modified to be usable with DUMP intrinsic;
  779: - VARS intrinsic is modified and now prints value of variables.
  780: * Thu Jul 21 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8h (RPL/2)
  781: - units is upgraded to 1.85 release;
  782: - -d flag is added in command line. Don't use this flag if you don't know
  783: what you do! It is only used to debug internal memory allocations;
  784: - internal pointers (ADR objects) are printed as 64 bits pointers to be usable
  785: on 64 bits wide architectures.
  786: * Sat apr 16 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8g (RPL/2)
  787: - DUMP is rewritten to be portable. It works, but without shared libraries,
  788: printer file, graphic files and last error. Support for this kind of objects
  789: shall be available as soon as possible. Warning: DUMP cannot be used in
  790: multiprocessing;
  791: - configure.in script is modified to return an error when g77 is not found;
  792: - a new internal type is used to handle shared libraries;
  793: - a major bug is discovered and fixed in recherche_type(). It only occurs
  794: in interactive mode ([[ 1 ]] returns a syntax error);
  795: - a major bug is found in simplification_arbre(). Subroutine is disabled.
  796: * Thu mar 17 2005 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8f (RPL/2)
  797: - option -r is added to restart a process from a dump file;
  798: - DUMP intrinsic is added. It performs synchronous checkpointing;
  799: - GSL is upgraded to release 1.6.
  800: * Wed dec 22 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8e (RPL/2)
  801: - Result types of PERM and COMB instrinsic are fixed;
  802: - RPL/2 now uses a new preprocessor due to a new 'feature' in gcc/cpp;
  803: - RPL/2 can now use all processors on multiprocessor workstations with
  804: DETACH, SEND, RECV and WFPROC new intrinsics. The first test program was:
  805: 
  806: #!/usr/local/bin/rpl -cs
  807: 
  808: MULTIPROCESSUS
  809: <<
  810:     'FONCTION' detach
  811:     do "B" disp until false end
  812: >>
  813: 
  814: FONCTION
  815: <<
  816:     do "A" disp until false end
  817: >>
  818: 
  819: * Sun dec 12 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8d (RPL/2)
  820: - major bug is discovered and fixed in analyse_notation_algebrique :
  821: +++'A-B-C' returned
  822: 1: 'A-(B-C)' instead of 1: 'A-B-C'. It is now fixed;
  823: - recherche_type() routine is improved to cast in name 1E5E-6 or 1.23.4.5.
  824: * Fri dec 7 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8c (RPL/2)
  825: - major bug is fixed in formateur_fichier(). Now, it is possible to use
  826: lists in a file record. Note that only sequential and formatted files
  827: are supported;
  828: - major bug is fixed in BACKSPACE intrinsic. It only occurs on large
  829: records.
  830: * Fri nov 26 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8b (RPL/2)
  831: - minor bug is fixed in IP intrinsic: when argument was real without
  832: fraction part, IP returned a real, not an integer;
  833: - minor bug is fixed in recherche_type(): it is now possible
  834: to enter +++<NB3 + return. RPL/2 returns a syntax error, not a acces
  835: violation;
  836: - MCLRIN (MacLaurin series) intrinsic is added;
  837: - TAYLR (Taylor series) instrinsic is added;
  838: - very minor bug is fixed in evaluation(). Sometimes, when evaluation()
  839: is stopped by ^C, EXIT intrinsic did not work due to a mistake in
  840: the internal system stack;
  841: - minor bug is fixed in encart.c. System error messages returned by
  842: this subroutine were only available in french;
  843: - internal RPL/2 system stack corruption is fixed. This bug only affects
  844: interactive and debug modes when evaluation routine returns an error;
  845: - symbolic derivation subroutine is now able to derivate functions;
  846: - minor bug is fixed in instruction_multiplication: now 'X' 1. * returns
  847: 'X' and not 'X*1'.
  848: * Thu nov 18 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8a (RPL/2)
  849: - ctags in src/Makefile.am is fixed;
  850: - first derivation subroutines are written;
  851: - major bug is fixed in analyse_algebrique() :
  852: before this patch, '3-5+4' was understand as '3-(5+4)' !
  853: - instruction_division() is improved and returns 0 when it evaluates
  854: '0/X';
  855: - instruction_moins() is improved and returns 'NEG(X)' when it evaluates
  856: '0-X'.
  857: * Fri nov 5 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre8 (RPL/2)
  858: - interface_gnuplot is modified and do not use any deprecated gnuplot
  859: commands. Warning, you must use gnuplot 4.0;
  860: - graphic output is improved. Now, it is possible to use two separated
  861: scales on the same 2D graph (with "main" and "auxiliary" option of SCALE
  862: intrinsic). For example:
  863: 
  864: #!/usr/local/bin/rpl -c
  865: 
  866: TEST
  867: <<
  868:     'X' indep
  869:     { X Y } autoscale
  870:     'SIN(X)' steq draw
  871:     { "auxiliary" } axes
  872:     { X Y } autoscale
  873:     'COS(X)+2' steq draw
  874:     { { "ticsonly" "automatic" } { "ticsonly" "automatic" } } axes
  875:     drax persist
  876: >>
  877: 
  878: - a major bug is fixed in encart.c;
  879: - ncurses is patched.
  880: * Mon nov 1 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7o (RPL/2)
  881: - configure script is updated;
  882: - splash screen is added;
  883: - minor bug is fixed in SYSEVAL (only occurs with SIGINT signal).
  884: * Sun oct 24 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7n (RPL/2)
  885: - stack overflows are caught.
  886: * Fri oct 8 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7m (RPL/2)
  887: - minor bug is fixed in both << and >> intrinsics. It only occurs when
  888: "<<" HELP or ">>" help is called;
  889: - DFT and IDFT are added;
  890: - minor bug is fixed in FFT (explicit length has to be positive);
  891: - MOD can be used with vectors and matrices arguments;
  892: - major bugs are fixed in FFT and IFFT (trouble in the computation of the
  893: default length of FFT). Only occur with matrices.
  894: * Sat aug 14 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7l (RPL/2)
  895: - readline is upgraded to 5.0;
  896: - gsl is upgraded to 1.5;
  897: - corrections in HELP functions.
  898: * Fri aug 7 2004 BERTRAND Joël <rpl@systella.fr> rpl-4.00pre7k (RPL/2)
  899: - HELP is added;
  900: - statistic matrix SIGMA is renamed as SDAT;
  901: - rpl.h is modified to workaround a bug in Cygwin environment
  902: (SA_NOMASK is not defined in include files);
  903: - overflows are tested in HMS+ and HMS-;
  904: - CEIL, FLOOR and IP are modified to return a correct result with huge
  905: arguments that cannot be stored as integers;
  906: - fix a minor bug in ->LIST. The LAST stack now contains all arguments
  907: of this intrinsic;
  908: - flag 32 is used with DISP;
  909: - major bug is fixed in ->Q intrinsic (type of argument and memory leak).
  910: * Fri may 21 2004 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7j (RPL/2)
  911: - major bug is fixed in analyse(). CHR intrinsic cannot be called because
  912: I have erased a 'break' in a case statement;
  913: - major bug is fixed in AXES intrinsic. It only occurs when AXES is used
  914: with "main" or "auxiliary" option;
  915: - major bug is fixed in recherche_types(). With this patch, 'sin(X)' is
  916: now well analysed as 'SIN(X)'.
  917: * Thu apr 22 2004 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7i (RPL/2)
  918: - major bug is discovered and fixed in formateur(). It only occurs when
  919: an algebraic expression is displayed with '='. In some cases, parenthesis
  920: are missing. Same fix in formateur_fichier();
  921: - a minor bug is fixed in evaluation.c that does not return any error when
  922: it tries to execute 'a=z' e = ;
  923: - new code is written in each intrinsic functions to return their required
  924: arguments.
  925: * Sun apr 14 2004 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7h (RPL/2)
  926: - a minor bug is fixed in recherche_type: 1.E90 is now a real;
  927: - minor bug is fixed in formateur_reel(). It only occurs in STD mode:
  928: 1E90 was printed as 1.00000000000000E90;
  929: - HELP is added;
  930: - formateur() is fixed to properly print matrices and lists;
  931: - a lot of warnings due to deprecated syntax are fixed;
  932: - DFT is modified but not usable;
  933: - cosmetic bug is fixed in formateur_tex.c;
  934: - minor bug is fixed in FFT intrinsic (segfault when FFT is called without
  935: any argument).
  936: * Sun Jan 25 2004 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7g (RPL/2)
  937: - included ncurses is updated to 5.4;
  938: - included units is updated to 1.83c;
  939: - major bug is fixed in recherche_type() function. With this bug, RPL/2
  940: prints 'A/INV(Z+E)+R' when you enter A Z E + inv R + /;
  941: - DFT intrinsic is added. It returns the discrete Fourier transform of an
  942: array. When the length of each line is 2**n, the result is the same as
  943: the result of FFT;
  944: - minor bug is discovered and fixed in PUT and PUTI intrinsics when these
  945: instructions verify arguments types. It does not affect the result when
  946: all arguments are correct.
  947: * Sun Oct 19 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7f (RPL/2)
  948: - major bug is fixed in evaluation of both EXIT and CYCLE intrinsics. Now,
  949: EXIT can be used (as ABORT and KILL) to quit interactive mode of RPL/2;
  950: - units is updated to 1.83a release;
  951: - formateur_fichier.c is modified to handle unformatted files. This task
  952: is not completed.
  953: * Mon Aug 25 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7e (RPL/2)
  954: - CLUSR is written. It purges all global variables;
  955: - BESSEL intrinsic is fixed to allow the use of expressions as arguments;
  956: - a major bug was introduced with rpl-4.00pre7d in formateur.c. It appears
  957: when an algebraic expression is displayed or printed but does not affect
  958: computations. It is now fixed;
  959: - gsl is upgraded to 1.4.
  960: * Mon Aug 18 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7d (RPL/2)
  961: - algebraic expressions are now more readable when they are displayed
  962: (less parenthesis);
  963: - rplpp is modified to workaround a mistake in 'which' function (seems to appear
  964: on Debian distribution, but since cpp is in the default path, RPL/2 works
  965: fine...);
  966: - NOT is not correctly formatted in formateur.c:
  967: Z NOT -> 'NOT Z' but 'A+Z' NOT -> 'NOT A+Z' and 'NOT Z+A' -> 'NOTZ+A'
  968: with a NOTZ function !
  969: * Sun Aug 10 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7c (RPL/2)
  970: - CYCLE is fixed. Now, it is possible to use CYCLE in an expression even
  971: if the main loop is in a program;
  972: - RPL/2 is tested with efence and valgrind;
  973: - configure.in script is modified;
  974: - units.c is modified to be built by gcc-3.3. I only have removed a #if 0/#endif
  975: structure. I don't know why this code was compiled by gcc-3.3... Maybe
  976: another gcc bug...
  977: * Fri Jul 25 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7b (RPL/2)
  978: - EXIT is fixed. Now, it is possible to use EXIT in an expression when the
  979: main loop is in a program;
  980: - RPL/2 can take its arguments (and command) on the standard input. Try
  981: echo "1 2 3 + *" | rpl -i | grep "^1:" | cut -d ':' -f2
  982: - a minor bug in vim syntax file is fixed (CYCLE and EXIT intrinsics);
  983: - a minor bug is discovered in analyse_algebrique(). Now, expression
  984: such as 'A+Z AND 2' or '(A+Z) AND 2' are correctly parsed.
  985: * Mon Jun 16 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7a (RPL/2)
  986: - Major bug is fixed in evaluation subroutine. This one only occurs
  987: when an error in a user definition called by an expression is caught
  988: by an IFERR structure;
  989: - EXIT intrinsic can now be used in DO/UNTIL/END or WHILE/REPEAT/END loops;
  990: - sequenceur() is now uninterruptible with STOP signal in recherche_type()
  991: subroutine;
  992: - major bug is fixed in types.c (# xxxxxb) and recherche_instruction_suivante();
  993: - GSL exception (underflow) is now caught;
  994: - tools/Makefile.am is fixed;
  995: - Debian buildpackage script is fixed.
  996: * Tue Jun 10 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre7 (RPL/2)
  997: All memory leaks issued from the pre6 beta releases seem to be fixed.
  998: Build process is improved and vim syntax file and manual pages are updated.
  999: * Mon Jun 9 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6l (RPL/2)
 1000: - RCI and RCIJ intrinsic are added;
 1001: - BESSEL intrinsic is added. Syntax:
 1002: 3: type ("J", "K", "I", "Y", "j", "k", "i", "y")
 1003: 2: order (integer or real)
 1004: 1: x;
 1005: - ->Q intrinsic is added;
 1006: - major bug is fixed in C->R intrinsic;
 1007: - ROW+ and ROW- are added and tested;
 1008: - COL+ and COL- are added and tested. Syntax:
 1009: 3: matrix
 1010: 2: integer (number of column to be inserted)
 1011: 1: column matrix to be inserted;
 1012: - major bug was discovered in interface_gnuplot(). It only occurs when
 1013: the subroutine reduces the graphical depth. It is now fixed;
 1014: - Some mistakes are been fixed in vim syntax file;
 1015: - SX2, SY2 and SXY are added;
 1016: - SX and SY statistical intrinsics are added;
 1017: - DEBIAN control file is fixed;
 1018: - PAPER intrinsic is added. Supported paper formats are now : a4, a5, b5,
 1019: letter, legal, executive;
 1020: - PPAR is modified to include current graphic type.
 1021: * Sun Jun 1 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6k (RPL/2)
 1022: - SLICESCALE intrinsic is added. Its syntax is
 1023: { "automatic" nb_of_levels }
 1024: { "discrete" l1 l2 l3 ... }
 1025: { "incremental" start incr }
 1026: { "incremental" start incr end }
 1027: { "automatic" } (default);
 1028: - a minor bug (in last stack) is fixed in AXES intrinsic
 1029: - flag 52 is used to automatically update graphics;
 1030: - man pages are updated;
 1031: - evaluation() is modified to perform evaluation of expressions that contain
 1032: '=';
 1033: - a minor bug is fixed in AXES intrinsic;
 1034: - a minor bug is fixed in DRAW intrinsic (2D and 3D graphics were able to
 1035: appear on the same figure). The same mistake is fixed in DRWS intrinsic;
 1036: - LAST is disabled in evaluation subroutine (EVAL and ->NUM intrinsics).
 1037: * Sun May 18 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6j (RPL/2)
 1038: - SLICE intrinsic is added. It is used to draw 3D graphics as contour lines;
 1039: - PLOTTER is added to draw statistical clouds with lines;
 1040: - C and H source files now include vim parameters;
 1041: - vim syntax file is modified to include new intrinsics;
 1042: - static archive is modified to include all required libraries needed by
 1043: RPL/2.
 1044: * Sun May 4 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6i (RPL/2)
 1045: - '=' is added and tested;
 1046: - XCOL and YCOL are added;
 1047: - a minor bug in analyse_syntaxique() is fixed;
 1048: - THEN is modified to return an error when ELSE appears in a CASE/THEN/END
 1049: structure. ELSE is modified to return an error when ELSE appears in
 1050: an ELSE/END structure;
 1051: - a major bug is fixed in CYCLE;
 1052: - EXIT is written. When EXIT appears in a defined loop (FOR or START), the
 1053: sequencer continues after the end of this loop;
 1054: - SCLS is added;
 1055: - DRWS now uses COLS to draw 2D graphics;
 1056: - PPAR and SPAR are written. SPAR returns a list that contains the
 1057: size of the statistical matrix (or "UNAVALAIBLE" if there is any
 1058: statistical variable, or "DISABLED" if its type is not one of the type of
 1059: a statistical matrix.) and XCOL and YCOL parameters. Warning: [[]] SIZE
 1060: returns { 1 0 } and it is not a bug, because a null matrix contains _one_
 1061: null line ! Thus, [[]] STOS SPAR returns { { 1 0 } 1 2 };
 1062: - EXTERNAL intrinsic is added. Warning: by default, extern functions are
 1063: disabled. Arguments of EXTERNAL are case sensitive because the external
 1064: interface is written in C. { ext_sinus } EXTERNAL does not replace the list
 1065: of known external functions but add the new list to the last. { "all" }
 1066: EXTERNAL allows all external functions and { "none" } EXTERNAL removes all
 1067: external names of the known functions;
 1068: - mkrplso.in is modified.
 1069: * Sun Apr 20 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6h (RPL/2)
 1070: - vim syntax file is upgraded;
 1071: - a minor mistake is fixed in recherche_instruction_suivante();
 1072: - some minor memory leaks are fixed in recherche_type() function. They only
 1073: occurs when a syntax error is detected;
 1074: - #error and #warning preprocessor macros are added;
 1075: - INCR and DECR are written (with integer or variable argument);
 1076: - CSWP and RSWP are added and tested;
 1077: - a minor bug is fixed in analyse.c;
 1078: - DEBIAN/control is added to build debian package;
 1079: - SCALE is fixed and improved ("automatic" keyword);
 1080: - PUTC and PUTR new intrinsics are added.
 1081: * Sun Apr 13 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6g (RPL/2)
 1082: - a very minor bug is fixed in VISIT intrinsic. It only occurs when
 1083: VISIT does not find a name in level 1;
 1084: - configure.in script is modified to add a new test (--enable-debug
 1085: flag). Configured with this fleg, RPL/2 will be built with electric-fences;
 1086: - GETR (get row[s]) and GETC (get column[s]) are added. These new instructions
 1087: extract a part of a matrix. Syntax: [[ 1 2 3 ][ 2 3 4 ]] { 1 } GETR or
 1088: 'MATRIX' { 2 2 3 } GETR;
 1089: - LOGSCALE intrinsic is improved and now, it can be used as
 1090: { "main" "auxiliary" X Y } LOGSCALE;
 1091: - SCALE intrinsic is used to fix the limits of a graphic. Its syntax is the
 1092: same than AXES:
 1093: { { 60 "ticsonly" 2 } { "automatic" "ticsonly" 10 } } axes
 1094: { "auxiliary" { 60 "ticsonly" "default" } { "automatic" } } axes
 1095: { { -10 10 } "automatic" } SCALE.
 1096: Warning, it is not possible to ask a logarithmic scale with this intrinsic
 1097: because it changes only the dimension of the screen. To have a logarithmic
 1098: scale, you must use LOGSCALE intrinsic:
 1099: { X } LOGSCALE gives a semi-log screen, { "auxiliary" X Y } gives a log-log
 1100: screen on second scale;
 1101: - { X X } autoscale and { Y Y } logscale are now invalid;
 1102: - *D is added (depth multiplication, for 3D graphics);
 1103: - a new intrinsic (*S) is added. It changes the scale of a graphic (X, Y
 1104: and Z axes). The result of *S is the same than DUP DUP *H *W *D;
 1105: - a major bug is fixed in GETI instrinsic when it is used with a name
 1106: that contains a matrix or a vector (bad upper bounds conditions in
 1107: incrementation);
 1108: - DISP intrinsic now uses the 33-th flag. When it is not set
 1109: (default), a final carriage return is sent to the terminal;
 1110: - AXES intrinsic only takes a list that can contains the keywork
 1111: "main" or "auxiliary". Before this modification, this keyword was in
 1112: the first stack level;
 1113: - vim syntax file is upgraded;
 1114: - in appel_gnuplot(), stdin is closed when gnuplot is called with -raise
 1115: option;
 1116: - LAST is now disabled in the main loop of INT intrinsic;
 1117: - expm1 and lnp1 are rewritten to use expm1 and log1p from math.h.
 1118: * Sun Apr 6 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6f (RPL/2)
 1119: - a major bug is fixed in evaluation() subroutine. It occurs with DRAW
 1120: intrinsic when the equation cannot be evaluated (for example 'SIN(X)/X'
 1121: in 0);
 1122: - LAST is disabled in the main loop of DRAW intrinsic;
 1123: - a major bug is fixed in DRAW intrinsic. When an error occurs in the
 1124: evaluation of an equation, the system stack is returned corrupted to the
 1125: sequencer;
 1126: - the same minor bug is fixed in FOR and START. It only occurs when the limits
 1127: of a loop are not integer or real.
 1128: * Sun Mar 31 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6e (RPL/2)
 1129: - the compilation stage aborts with an error message when two definitions
 1130: have the same name. To improve the compilation() subroutine, I have to
 1131: add some tests in gestion_variables.c;
 1132: - recherche_type() subroutine ad some other connex subroutines are improved.
 1133: Now, some syntax errors about object are caught and do not perform sequencer
 1134: hangup;
 1135: - readline is upgraded (minor compilation bug with recent gcc);
 1136: - Makefile.am's and configure.in scripts are improved.
 1137: * Fri Mar 14 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6d (RPL/2)
 1138: - DRWS intrinsic is written. Two datastyles are associated: SCATTER (2D
 1139: and 3D) and HISTOGRAM (only 2D, but 3 columns are accepted, the third shown
 1140: the boxwidth, 1 by default);
 1141: - recherche_type() is rewritten to be faster;
 1142: - gsl is upgraded (release 1.3);
 1143: - ncurses is upgraded and patched (release 5.3);
 1144: - recherche_instruction_suivante() is fixed (string research with included
 1145: '"') and rewritten to be faster;
 1146: - appel_gnuplot() is fixed. When no graphic was available, it returned a
 1147: segfault.
 1148: * Sun Mar 9 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6c (RPL/2)
 1149: - RPL/2 is compiled by gcc-3.2.2 and seems to work;
 1150: - the same minor bug is fixed in REDRAW and DRAX functions;
 1151: - a minor fix is written in DRAW function (2D and 3D);
 1152: - AXES intrinsic is improved. Now { { pi "ticsonly" 4 } "automatic" } DRAX
 1153: is accepted;
 1154: - a minor bug is fixed in VISIT intrinsic.
 1155: * Sun Jan 26 2003 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6b (RPL/2)
 1156: - a minor bug is fixed in evaluation subroutine;
 1157: - vim syntax file is improved;
 1158: - DRAW (wireframe section) is fixed. When an error occurs in the evaluation
 1159: of a 3D-graphic (for example 'SIN(R)/R' with 'R=SQRT(X**2+Y**2)' in X=0 and
 1160: Y=0), no graph was procuced (it results from a bug in gnuplot, and this fix
 1161: is a quick and dirty workaround...);
 1162: - RETURN intrinsic is modified to fix a trouble in interactive mode;
 1163: - rplconvert is improved.
 1164: * Sun Dec 22 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6a (RPL/2)
 1165: - a memory leak is fixed in formateur.c that only occurs when RPL/2 try
 1166: to print a list that contains a name;
 1167: - a major bug is fixed in -> intrinsic that only occurs in evaluation case with
 1168: a algebraic expression (<< 1 -> X 'X+1' >> eval);
 1169: - vim syntax file is improved;
 1170: - RPL/2 can now be built by gcc 3.2.1;
 1171: - "**" can be used in algebraic expression;
 1172: - DRAW can now plot wireframe (3D) graphics.
 1173: * Sun Dec 8 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre6 (RPL/2)
 1174: - ncurses is patched to be compiled by gcc 3.2;
 1175: - purification_chaine is rewritten to fix a major bug (when 'chaine' is empty);
 1176: - a major bug is fixed in recherche_instruction_suivante();
 1177: - minor bug is fixed in rpl-core file. The error message is now correctly
 1178: written;
 1179: - minor bug is fixed in analyse_notation_algebrique.c and types.c.
 1180: Now, an expression such as 'A+' returns an error when it is analyzed;
 1181: - VISIT intrinsic is added;
 1182: - a major memory leak is fixed in evaluation.c. This bug rarely occurs in
 1183: normal mode.
 1184: * Sun Aug 25 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5e (RPL/2)
 1185: - an EDIT intrinsic is added;
 1186: - PRMD intrinsic returns french or english messages;
 1187: - rpl-core now call LAST intrinsic if the last stack is avalaible. It
 1188: contains the error message too;
 1189: - new syntax, ftplugin and indent files are written for vim text editor;
 1190: - major bug is found and fixed in RCL intrinsic;
 1191: - major bug is found and fixed in OR intrinsic.
 1192: * Mon Jul 29 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5d (RPL/2)
 1193: - ncurses is updated;
 1194: - minor bug is fixed on PURGE instruction (an error no caught was
 1195: returned in interactive mode).
 1196: * Mon Jul 21 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5c (RPL/2)
 1197: - ASL (arithm. shift left) is added.
 1198: * Thu Jul 11 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5b (RPL/2)
 1199: - ncurses is patched;
 1200: - gsl is added to perform arithmetic operations;
 1201: - units is patched;
 1202: - some very minor bugs have been fixed.
 1203: * Wed May 15 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5a (RPL/2)
 1204: - ncurses is patched;
 1205: - RPL/2 can now be built by gcc 3.1;
 1206: - RDZ is fixed (minor bug).
 1207: * Sun Apr 21 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre5 (RPL/2)
 1208: - RPL/2 can now be called from other languages (librpl libraries).
 1209: * Sun Mar 24 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4h (RPL/2)
 1210: - ERRN and ERRM can now be used with errors returned by external functions;
 1211: - readline and ncurses have been updated;
 1212: - no more bugs have been reported since the rpl-4.00pre4g release.
 1213: * Wed Feb 20 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4g (RPL/2)
 1214: - ERRN and ERRM intrinsic functions are written. They return the last
 1215: error number or message even if errors are caught by an IFERR structure;
 1216: - a minor bug is fixed in EPSILON intrinsic. Now, 'EPSILON(0)' returns
 1217: a non null value;
 1218: - Ncurses is updated.
 1219: * Mon Feb 18 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4f (RPL/2)
 1220: Arithmetic intrinsic instructions (- +, -, *, / and **) are improved :
 1221: 'X' 0 + and 0 'X' + return 'X';
 1222: 'X' 0 - returns 'X';
 1223: 'X' 1 * and 1 'X' * return 'X';
 1224: 'X' 0 * and 0 'X' * returns 0; 
 1225: 'X' 1 / returns 'X';
 1226: 'X' 1 ** returns 'X';
 1227: 'NEG(X)' NEG returns 'X';
 1228: - autoconf/automake scripts are improved: now, the size of the different types
 1229: found by configure are used in rpltypes.h (rplconfig.h is written by configure);
 1230: - rdynamic flag is added in src/Makefile.am. This flag is used in the first
 1231: makefile, but forgotten in the new process;
 1232: - Flag 31 is tested before saving any arguments in bibliotheques_externes.c;
 1233: - POS can now be used on lists;
 1234: - ELSILON is written. This function returns the smallest real e(x) such as
 1235: e+abs(x) != abs(x).
 1236: * Mon Feb 11 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4e (RPL/2)
 1237: - now, INT intrinsic function can be interrupted;
 1238: - precision of sommation_vecteur_xxx() subroutines is improved;
 1239: - new vim syntax file written for vim 6.0.
 1240: * Mon Feb 04 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4d (RPL/2)
 1241: - explicit error messages are now printed when the RPL/2 is used in
 1242: interactive mode;
 1243: - major bug is fixed in OPEN intrinsic: with 'REPLACE' status, file lock was
 1244: tested after the file is opened, thus, when the file was locked, it was
 1245: deleted too!;
 1246: - configure script is improved (and it seems to be good ;-) );
 1247: - An --disable-experimental flag is added to the configure script. Thus, even
 1248: if you compile a beta release, you can compile a stable RPL/2;
 1249: - new syntax and ftplugin written for vim 6.0.
 1250: * Wed Jan 30 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4c (RPL/2)
 1251: - configure script is improved.
 1252: * Sun Jan 27 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4b (RPL/2)
 1253: - ncurses now replaces termcap;
 1254: - Côme DESPLATS has written a configure script.
 1255: * Fri Jan 18 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4a (RPL/2)
 1256: - KIND is added and returns the type of the numerical argument ;
 1257: - history file is added.
 1258: * Tue Jan 15 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre4 (RPL/2)
 1259: - Stable release. Unformatted files are disabled in this release.
 1260: * Mon Jan 14 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3h (RPL/2)
 1261: - SIGTSTP (CTRL+Z) is added. In a script, a SIGTSTP signal signifies
 1262: that the RPL/2 seqencer must stop and must give a prompt. This
 1263: signal is an asynchonous "HALT" command;
 1264: - SIGINT (CTRL+C) variables stack corruption is fixed;
 1265: - IFERR seems to be fixed (in equation evaluation routine);
 1266: - Memory leak is fixed (ADR object type);
 1267: - DATE returns both date and hours;
 1268: - TIME now returns user and system CPU times;
 1269: - MEM is added.
 1270: * Thu Jan 10 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3g (RPL/2)
 1271: - Makefile is improved to support sparc v7 (sun4c), sparc v8 (sun4m) and
 1272: sparc v9 (sun4u). Now, RPL/2 can be built on i386 (i486 is known as i386),
 1273: i586, i686, K6, K7, alpha ev4, alpha ev5, alpha ev56, alpha ev6, sparc v7,
 1274: sparc v8 and sparc v9. Compilation of RPL/2 on my Sun Sparc 2 (sun4c,
 1275: CPU 4/75, 64 MB, 40 MHz with FPU) is a very great mission :
 1276: 
 1277: Newton:[~/rpl/rpl] > time make install
 1278: ...
 1279: real    338m39.623s
 1280: user    324m32.290s
 1281: sys     10m47.380s
 1282: Newton:[~/rpl/rpl] >
 1283: 
 1284: I don't know if you will compile this language on old worstations, but
 1285: it is usable ;-) ;
 1286: - SYSEVAL is improved. An external program can be called without any shell.
 1287: Thus, even if the sticky bit is set, RPL/2 can not give a shell root when
 1288: a SYSEVAL command crashes;
 1289: - minor bug is fixed in recherche_type() (# xxxxb parsing);
 1290: - presence of bootstrap entry point is verified before launching the
 1291: sequencer;
 1292: - minor bug is fixed in formateur_tex() (underscore in mathematical
 1293: expression);
 1294: - Lapack is updated.
 1295: * Thu Jan 3 2002 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3f (RPL/2)
 1296: - IFERR is now known in an expression, but not usable.
 1297: * Mon Dec 31 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3e (RPL/2)
 1298: - several bugs are fixed.
 1299: * Mon Dec 17 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3d (RPL/2)
 1300: - major bugfix in file locking.
 1301: * Fri Dec 14 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3c (RPL/2)
 1302: - minor fixes is system() call.
 1303: * Fri Nov 30 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3b (RPL/2)
 1304: - automatic limitation of the graphical depth due to a limitation (bug ?)
 1305: of gnuplot.
 1306: * Mon Nov 19 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3a (RPL/2)
 1307: - new file temp management.
 1308: * Sun Nov 18 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre3 (RPL/2)
 1309: - memory leak is fixed in STO instruction;
 1310: - minor bug in file management is fixed;
 1311: - BACKSPACE is added;
 1312: - VARS is added;
 1313: - file locks are improved.
 1314: * Wed Nov 14 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2l (RPL/2)
 1315: - major bug is fixed (on sparc architecture) and RPL/2 can now run
 1316: on sparc stations;
 1317: - INDEP and DEPND are improved;
 1318: - AXES is added;
 1319: - WRITE, APPEND and REWIND are added.
 1320: * Sun Nov 11 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2k (RPL/2)
 1321: - write is improved ;
 1322: - major bug is found and fixed in copie_objet() with struct_fichier;
 1323: - minor bug is fixed in OPEN function;
 1324: - minor bug is fixed in analyse_syntaxique() subroutine. All commands
 1325: are analysed before starting their executions.
 1326: * Thu Nov 8 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2j (RPL/2)
 1327: - minor bug is fixed in appel_gnuplot();
 1328: - RPL/2 can work without LANG variable.
 1329: * Wed Oct 31 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2i (RPL/2)
 1330: - WAIT function is improved (removing the polling function);
 1331: - LAST stack is not active (default) when rpl is called without the option -i.
 1332: In all other cases, LAST stack is active;
 1333: - Labels can be added on a gnuplot output (function LABEL);
 1334: - LCD-> and ->LCD are added.
 1335: * Sun Oct 21 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2h (RPL/2)
 1336: - minor bug is fixed in TeX output (pi);
 1337: - new english manual is added.
 1338: * Wed Oct 16 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2g (RPL/2)
 1339: - LOCK, WFLOCK and UNLOCK are added. A file is locked when it is opened;
 1340: - VERSION function is added. It returns the version number of the interpreter;
 1341: - minor bug is fixed in evaluation subroutine;
 1342: - english error messages are been fixed.
 1343: * Tue Oct 09 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2f (RPL/2)
 1344: - interrupt subroutine is added;
 1345: - formatted files support is continued.
 1346: * Sun Sep 30 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2e (RPL/2)
 1347: - formateur_fichier.c is added to perform formatted files write.
 1348: * Thu Sep 27 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2d (RPL/2)
 1349: - minors bugfixes in FIX format in formateur_reel() subroutine;
 1350: - new manual page in english;
 1351: - FORMAT intrinsic is added and can read any format for "formatted" file.
 1352: * Sun Sep 23 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2c (RPL/2)
 1353: - OPEN, CLOSE, SYNC, INQUIRE, CREATE and DELETE are tested;
 1354: - a man page in the first manual section is written.
 1355: * Thu Sep 20 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2b (RPL/2)
 1356: - major bugfixes in recherche_type() subroutine: sometimes in interactive mode,
 1357: this routine was be able to forget the last element of a list, a vector or
 1358: a matrix.
 1359: * Mon Sep 17 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2a (RPL/2)
 1360: - OPEN, CLOSE and DELETE are known by the language but not very usable;
 1361: - minor bugfixes in evaluation routine.
 1362: * Sun Sep 16 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre2 (RPL/2)
 1363: - major bugfixes in evaluation routine.
 1364: * Sat Sep 15 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1d (RPL/2)
 1365: - conditional structures can be used in equations.
 1366: * Fri Sep 14 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1c (RPL/2)
 1367: - Minor bugfixes in makefile.
 1368: * Sat Sep  8 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1b (RPL/2)
 1369: - CONVERT is written;
 1370: - CYCLE, FOR/NEXT, FOR/STEP, START/NEXT, START/STEP, DO/UNTIL/END and
 1371: WHILE/REPEAT/END can now be used in an equation;
 1372: - I fix some troubles with evaluation subroutine;
 1373: - db3 library is added.
 1374: * Thu Sep  6 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1a (RPL/2)
 1375: - add rplconvert and rplunits sources;
 1376: - add CONVERT definition (but it does not work).
 1377: * Mon Sep  3 2001 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre1 (RPL/2)
 1378: - initial public release (GPL).
 1379: * Thu Apr  2 1998 BERTRAND Joël <rpl2@systella.fr> rpl-4.00pre0 (RPL/2)
 1380: - RPL is rewritten from scratch and named RPL/2.
 1381: #* 1992 BERTRAND Joël rpl-3.02 (RPL-387)
 1382: #- minor bugfixes.
 1383: #* 1991 BERTRAND Joël rpl-3.01 (RPL-387)
 1384: #- arithmetic processor support is added to improve global performances.
 1385: #* 1991 BERTRAND Joël rpl-3.00 (RPL-386)
 1386: #- idem... but on an i386DX...
 1387: #* 1990 BERTRAND Joël rpl-2 (RPL-6809)
 1388: #- a new release on a more powerfull processor and with new functions and an
 1389: #built-in editor. It has been written on a SMT-Goupil G3-6809 running
 1390: #Flex9 (320 KB of RAM and a graphic card used to draw 512*256 graphics in
 1391: #8 colors)
 1392: #* 1989 BERTRAND Joël rpl-1 (RPL-6502)
 1393: #- initial release (only an historic interest) written on an ORIC Atmos 48K.
 1394: #No graphic was provided.

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