focal (7) afnix-notes.7.gz

Provided by: afnix_2.9.2-2build1_amd64 bug

NAME

       vol-0 - afnix installation guide

INSTALLATION GUIDE

       This  chapter  describes  the  installation  procedures  for the  AFNIX writing system distribution. This
       chapter explains how to set and compile this distribution.

       Software distribution
       The complete distribution can be downloaded from the AFNIX home page. The result  is  a  complete  source
       tree that is ready for compilation. The distribution contains also the documentation as well as examples.
       The distribution is supported on a variety of platforms as indicated below that can be either 32 bits  or
       64 bits machines. The distribution is also available at the FreeBSD port collection.

       Platform   Processor        Operating system
       Linux      X86-32, X86-64   Linux 3.x, 4.x
       FreeBSD    X86-32, X86-64   FreeBSD 8.x, 9.x, 10.x.x
       Gnu        X86-32, X86-64   GNU KBSD, GNU Hurd

       Specific  processors  like  the  Alpha,  M68K,  ARM, MIPS, RISCV and SUPERH are also supported on certain
       distributions. The PowerPC (PPC) processor has been discontinued. The Solaris  SPARC  platform  has  been
       discontinued. Do not hesitate to contact the development team for specific processor or platform support.

       Installation procedure
       The  core  software  is  written  in  C++.  It  has been successfully built with the GNU GCC 4, 5, 6. The
       clangcompiler has also been succesfully tested. You  will  also  need  the  GNU  Makepackage.  With  some
       distributions  the command is called gmake. Note that the Makefilehierarchy is designed to operate safely
       with the -jGNU Makeoption.

       Unpacking the distribution
       The distribution is available as a compressed tar file. Note that the documentation is distributed  in  a
       separate file. The following command unpacks the distribution.

       zsh> gzip -d afnix-src-[version].tar.gz
       zsh> tar  xf afnix-src-[version].tar

       Quick command reference
       The list of commands to execute is given in the example below. A detailed description for each command is
       given hereafter. The make worldcommand is the default command that builds the whole tree with the default
       compiler.

       zsh> ./cnf/bin/afnix-setup -o --prefix=/usr/local/afnix
       zsh> make status
       zsh> make [-j]
       zsh> make test
       zsh> make install
       zsh> make clean

       With  some  platforms,  the makecommand should be replaced by the gmakecommand. The make statuscommand is
       optional and can be used to report the internal value  contents.  In  particular,  the  version  and  the
       installation parameters are reported.

       Configuration
       The  afnix-setupcommand can be invoked to setup a particular configuration. You should have your compiler
       on your search path. Normally, the command given below is enough.

       zsh> ./cnf/bin/afnix-setup -o --prefix=/usr/local/afnix

       This command checks that the target platform can be detected and configured. The -ooption configures  the
       compilation in optimized mode. Use the -goption can be used to configure the build process in debug mode.
       The --prefixoption sets the installation directory. Note that the compilation  process  is  done  in  the
       distribution  tree  and that the --prefixoption affects only the installation operations. The -voption is
       the verbose option. Other options are available for fine tuning.

       Option       Description                              Default
       -h           Print a help message                     n/a
       -v           Set the verbose mode                     n/a
       -g           Set the debug mode                       yes
       -o           Set the optimized mode                   no
       --help       Same as -h                               n/a
       --prefix     Set the target install directory         /usr/local
       --shrdir     Set the shared install directory         /usr/local/share
       --altdir     Set the alternate install directory      /usr/local
       --sdkdir     Set the system kit directory             platform dependent
       --compiler   Set the default compiler                 platform dependent
       --proctype   Set the processor type                   generic
       --dynamic    Compile and link dynamically             yes
       --static     Compile and link statically              no
       --openmp     Enable the optional openmp compilation   no

       The prefixoption set the root installation directory. The binary and library installation directories are
       derived  from  it.  The  shrdirset  the  shared  installation  directory  which  is normally used for the
       installation of the manual pages on most popular  systems.  the  altdirsets  the  alternate  installation
       directory.  Normally  this  path  should  be empty as it affects the path for the etcdirectory. This flag
       should be used when using a prefix to unusual destination. the sdkdiroption sets the path of the platform
       system  development kit. This option is only used with the Darwinplatform. The compileroption can be used
       to force a particular compiler with the help of a compiler configuration file. The proctypeoption can  be
       used  to force a particular processor architecture. The -sor --staticoption can be used to build a static
       executable. Normally, this option should not be used since it restrict the use of extension modules.  The
       dynamiccontrols  whether  or  not  the  dynamic  libraries  should  be  built.  This  option  is detected
       automatically for a particular platform and should be used only by package maintainer. There exists  also
       specific options which are mostly for package maintainers. At this time, the build process integrates the
       Debian, Ubuntu and Fedora specific packaging mechanism.

       Option      Description                                        Default
       --package   Set the type of package to support                 none
       --pkgbin    Set the optional package bin directory             none
       --pkglib    Set the optional package lib directory             none
       --pkgprj    Set the optional package project directory         none
       --pkghdr    Set the optional package header directory          none
       --pkgetc    Set the optional package etc directory             none
       --pkgman    Set the optional package manual directory          none
       --pkgdoc    Set the optional package documentation directory   none
       --pkgwww    Set the optional package www directory             none

       Compiling the distribution
       The compilation process is straightforward. With some  platforms,  the  makeaccepts  the  -jthat  enables
       concurrent operations.

       zsh> make [-j]

       This  will  build  the  complete distribution locally. If an error occurs, it is best to report it at the
       (bugs@afnix.org) AFNIX bug reportmail address.

       Testing the distribution
       The distribution contains all test suites. The test suites are compiled and executed with  the  following
       command.

       zsh> make test

       This command run the test suites for each library as well as the test suites for each application client.
       Most of the base library test suites are written in C++ with the application test suites written  in  the
       core writing system.

       Installing the distribution
       Once  the  system  has  been  built and tested, it can be installed. By default, the distribution tree is
       installed into the /usr/localdirectory. This can  be  overwritten  with  the  --prefixoption  during  the
       configuration process.

       zsh> make install

       There  are several variables that controls the behavior of the installrule. Each variable has its default
       value sets during the setup configuration.  However,  this  variable  can  also  be  altered  during  the
       installation process

       Variable   Description                          Default
       PREFIX     The root install directory           /usr/local
       SHRDIR     The shared install directory         /usr/local/share
       ALTDIR     The shared alternate directory       /usr/local/etc
       SDKDIR     The system  kit directory            platform dependent
       BINDIR     The binary install directory         prefix/bin
       LIBDIR     The library install directory        prefix/lib
       HDRDIR     The header files install directory   prefix/include/afnix
       ETCDIR     The extra files install directory    altdir/etc/afnix

       Installing the documentation
       The  documentation  is  installed independently of the software. The docrule builds the documentation and
       the publishrule installs the documentation. Several variables also control the documentation installation
       path.

       Variable   Description                           Default
       DOCDIR     The documentation install directory   shrdir/doc/afnix
       MANDIR     The manual pages install directory    shrdir/man

       Cleaning the distribution
       The distribution is cleaned with the cleanrule.

       zsh> make clean

       This rule does not clean the configuration. For a complete cleaning the resetrule is more appropriate.

       zsh> make reset

       Running AFNIX
       The  axicommand  invokes  the  interpreter.  In order to operate properly, the LD_LIBRARY_PATHenvironment
       variable must be configured with the directory containing the shared libraries.  If  the  libraries  have
       been installed in a standard location like /usr/local/lib, there is nothing to do.

       Running some example
       The  directory  expcontains various examples which can be run. Each example is labeled according to their
       use in the volume 1 of the documentation set. Example 0101.alsprints the  message  hello  world.  Example
       0501.alsprints various information about the system configuration.

       zsh> axi 0501
       major version number   : 2
       minor version number   : 8
       patch version number   : 0
       interpreter version    : 2.8.0
       operating system name  : linux
       operating system type  : unix
       afnix official uri     : http://www.afnix.org

       Special features
       The  build process provides several features that permits to customize the compilation process as well as
       the nature of the final executable. Most of  the  time,  these  options  are  reserved  for  the  package
       maintainer and are given below for illustration purpose.

       Target customization
       The  distribution can be configured to operate on a specific machine target. For example, a typical Linux
       box will be compiled with the default compiler target, which is the 386  processor.  You  can  force  the
       compilation  to  be  optimized  for a particular processor. This is done with the --proctypeoption of the
       afnix-setupcommand. Currently the  distribution  supports  the  586and  686architectures  for  the  Intel
       platform. The ultraarchitecture is valid for the SPARC platform.

       zsh> cnf/bin/afnix-setup -o --prefix=/usr/local
       --proctype=586

       This command will configure the distribution to be compiled specifically for the Pentium architecture.

       Special target extensions
       Extensions  are  specific  libraries  or  executables  which are not build automatically during the build
       process. The user is responsible to decide which extension is needed for the system  All  extensions  are
       located  under  the  src/extdirectory.  Simply  going  into  the  appropriate  directory  and running the
       makecommand will build the extension.  The asiextension creates a static interpreter with  all  libraries
       automatically included in the final executable. The extension is simply build with the following command.
       Note that this extension overwrite the previous executable in the bld/bindirectory.

       zsh> make -C src/ext/asi

       Extra files
       The distribution comes with some extra files. The most  important  is  the  Emacs  mode  afnix-mode.  The
       original  source  file is written in Emacs Lisp and is available in the etcdirectory of the distribution.
       This file should be installed according to the current Emacs installation.

MAINTAINER NOTES

       This chapter contains additional notes for the package maintainer. They are also useful for  anybody  who
       is  in  charge of integrating the distribution in a build process. The chapter describes the distribution
       tree with more details.

       The distribution tree
       The distribution tree is composed of various directories. Each of them has a Makefilewhich can be  called
       locally or from the top level.

              cnf
              This  directory contains the configuration distribution and various utilities. Normally you should
              not touch it, unless you are using a compiler different than gcc.

              src
              This directory contains the complete source tree. The source code is written in C++. Normally this
              directory  is  left  untouched.  If  there  are  good  reasons  to  modify  it, please contact the
              development team.

              tst
              This directory contains the complete test suites. The test suites are  used  by  various  programs
              including  the main interpreter, the compiler and the debugger. It shall be noted that the library
              distribution also includes specific test suites.

              doc
              This directory contains the complete documentation written in in XML with a special DTD. It should
              be left untouched.

              etc
              This  directory  contains various files associated with the distribution. Some files are useful to
              be copied.

              exp
              This directory contains various examples. They are included for illustration purpose.

       The process of building a package solely depends on the distribution  type.  Most  likely,  the  standard
       distribution  should  contain  the  binary  executables as well as some configuration file and the manual
       pages. The documentation and the development header files can put in separate packages.

       Configuration and setup
       The configuration process involves the use of the afnix-setupcommand  located  in  the  cnf/bindirectory.
       This  command  is  used  to configure the distribution. Package maintainers are encouraged to use it with
       specific options.

       Platform detection
       The afnix-guesscommand is used during the configuration process to  detect  a  supported  platform.  This
       command  can  be  run  in  stand-alone  mode. Various options can be used to tune the type of information
       requested.

       Option   Description
       -h       Print a help message
       -n       Print the platform name
       -v       Print the platform version
       -M       Print the platform major number
       -m       Print the platform minor number
       -p       Print the platform patch number
       -t       Print the processor type

       Without option, the utility prints a platform and processor description string.

       zsh> ./cnf/bin/afnix-guess
       linux-4.7-x64-generic

       Platform defaults
       The directory cnf/defcontains a platform specific default file. The file determines what is  the  default
       compiler  and  linking  mode.  This  file  is  used  by  the  afnix-setupcommand. For example, the afnix-
       darwin.deffile contains:

       compiler: gcc
       lktype  : dynamic
       lkmode  : dylib

       Such options instructs the configuration utility, that the default compiler is gccand  the  linking  mode
       should  operates in dynamic mode by using the dylibrule. These default values can be overwritten with the
       equivalent option of the afnix-setupcommand. Note that the compiler version is automatically detected  by
       the  system.  The  afnix-vcompcommand  will return the appropriate compiler version running on the target
       system.

       C++ source file conventions
       THe source tree has two types of C++ files. The first type has the extension .cxxand the second type  has
       the  extension  .cpp.  The  .cxx--  and  the  associated  .hxx-- files are only used to indicate a system
       dependency. These files are found only in the src/lib/pltdirectory. The .cxxextension indicates that  the
       file  might  use system specific include files. The .cpp-- and the associated .hpp-- files are the normal
       C++ source files. The .cppextension is used to indicate that these files will not use a  system  specific
       file.  By  default  this  rule is enforced in the compiler configuration file by specifying some compiler
       flags which do not authorize such access.

       Configuration files
       The configurations files are located in the cnf/makdirectory. Normally they should be left untouched. The
       most  important  one  is  the  afnix-rule.makfile that defines most of the compilation and linking rules.
       Additionally,  during  the  setup  operation,  the  afnix-setupcommand  creates  several  files  in   the
       bld/cnfdirectory.  The  bldis  the  build directory. The afnix-plat.makfile is the platform configuration
       file and the afnix-comp.makis a link to the appropriate compiler configuration file.

       Compilation
       Normally, the compilation process is immediate. Just invoking the makecommand will do the  job.  However,
       some  package maintainer have the desire to overwrite some flags. Some options are provided to facilitate
       this task.

              EXTCPPFLAGS
              This flag can be used to add some compilation flags for all .cppfiles.

              EXTCXXFLAGS
              This flag can be used to add some compilation flags for all .cxxfiles.

              EXTCCDEFINE
              This flag can be used to add some compilation definitions for all source files.

              EXTINCLUDES
              This flag can be used to add some compilation paths for the .cxxfiles.

       For example, it is common to have some maintainer to compile with both the debug and optimize flags. This
       can be done with the following command (assuming an optimized configuration):

       make EXTCPPFLAGS=-g EXTCXXFLAGS=-g

       All  include  files,  compiled  libraries  and executables are placed in the blddirectory. This directory
       contains the bld/binfor binaries, bld/libfor libraries and bld/hdrfor the header files.

       Building the package
       The package can be built by accessing the blddirectory or by invoking the installrule. The second  method
       is  not  recommended  for package construction, since it might trigger some file installation without any
       control.  The etcdirectory contains some special files that might be used for the package construction. A
       sample list of them is given hereafter.

              afnix-mode.el
              This file is the Emacs mode.

              afnix-gud.el
              This file is the debugger Emacs gud mode.

       Specific makefile rules
       The top level Makefilecontains several rules that might be useful for the package maintainer.

              status
              This rule show the configuration status for each parameters with the version.

              debug
              This rule invokes the default configuration in debug mode.

              optimized
              This rule invokes the default configuration in optimized mode.

              build
              This  rule invokes the default configuration in debug mode and compile the whole distribution. The
              default install directory is /usr/local.

              world
              This rule invokes the default configuration in optimized mode and compile the whole  distribution.
              The default install directory is /usr/local.

              test
              This rule runs all test suites.

              doc
              This rule builds the documentation.

              distri
              This rule builds the distribution.

              install
              This rule installs the distribution.

              publish
              This rule installs the documentation.

              clean
              This rule cleans the distribution but keep the configuration.

              reset
              This rule resets the distribution including the configuration.

RELEASE NOTES

       This  chapter  contains  the  release  notes  for  the  differents  releases.  Release notes are given in
       descending order for a particular version. The standard  notation  is  major.minor.patchwhich  represents
       respectively,  the  major, minor and patch number. A major version number changes indicates a substantial
       change in the distribution, including new tools, application  interface  and  license.  A  minor  version
       number  change  indicates  noticeable change, with or without new tools but without application interface
       change nor license change. Finally, a patch number change indicates a simple change to fix problem. There
       is no additional features in a patch nor an application interface change.

       Release 2.9

       Release features

              Core engine: release 2.9.2
              Small  revision  release  with small allocator fixes, doc improvements and 32 bits inconsistencies
              removal. The support for 'clang' compiler has been updated as well. A patch with support  for  the
              RISCV processor has also been incorporated.

              Core engine: release 2.9.1
              Small revision release with minor improvements for IPV6 address support.

              Core modules: nwg module
              The Uri object has been enhanced to support numerical ip address notation with brackets.

              Core modules: net module
              The Address object has been enhanced to support numerical ip address detection.

              Core engine: Unicode 11.0.0
              The Unicode revision 11.0.0 has been incorporated in the core engine.

              Core engine: serialization revisited
              The  core  engine  serialization  has been revisited to account for a larger number of modules and
              services.

              Core engine: default hash revisited
              The core engine hash function is now based on the Fowler-Noll-Vo algorithm.

              Core engine: logger object revisited
              The core engine logger object has been completly redesigned with a simpler interface.

              Core modules: nwg module
              The base 64/32/16 codec have been added as a single object Basexx.

              Core modules: sec module
              The security module has been enhanced with a new signature base class.

              Core modules: wgt module
              The widget module has been added to the core distribution.  At  this  time,  the  module  contains
              expressable and conditional objects.

              Core services: csm service
              The cloud session management service has been largely refactored.

              Core services: geo service
              The  geometry  service  has  been enhanced to support image and pixmap. A netpbm reader/writer has
              been added as well.

       Release 2.8

       Release features

              Core engine: release 2.8.3
              Release with GCC 8 support.

              Core engine: release 2.8.2
              Intermediate release with GCC 8 support.

              Core engine: release 2.8.1
              Incorporated patches for GCC 7.

              Core engine: Unicode 9.0.0
              The Unicode revision 9.0.0 has been incorporated in the core engine.

              Core engine: Collectable objects
              The Collectableobject is now beeing deployed inside the engine. A  colletable  object  provides  a
              releasemethod which can be used to remove links between object.

              Core engine: full dupleix stream
              A  full  dupleix  object has been added as a generic object. A full dupleix stream is provided for
              certain class of object like the network socket. The default mode of operations remains the  half-
              dupleix stream since stream access are protected by mutexes.

              Core modules: mth module
              The math module incorporates an infix notation parser module. This is a preliminray work suppoosed
              to grow over the next releases. The mean, covariance and univariate regression has been  added  as
              objects.

              Core modules: sps module
              The bundle object literal index has been updated to follow the bundle length.

       Release 2.7

       Release features

              Core engine: release 2.7.0
              Minor platform updates. This is an internal release in preparation for the 2.8.0 release.

              Core modules: net module
              Revisit socket options and parameters

              Core services: csm service
              Minor fixes with the agent accessor.

       Release 2.6

       Release features

              Core engine: release 2.6.3
              Incorporated patches for GCC 6.

              Core engine: release 2.6.2
              Incorporated patches for Debian issued by maintainer.

              Core engine: release 2.6.1
              Fixed the FreBSD build.

              Core engine: release 2.6.0
              This  is  the  relase  2.6.0.  The code has been updated to better support c++/11 for both gcc and
              clang.

              Core modules: xml module
              The processing of character entity reference has been substantially changed to adhere  fully  with
              the xml specification.

              Core modules: sps module
              The spreadsheet importer has been updated and a csv reader has been added. The importation process
              has also been revisited.

              Core modules: sec module
              The security module has been updated to support the tls. This include moving to a 6 bits mersenne-
              twister and adding a certificate block.

              Core modules: mth module
              The normal deviate has been added.

              Core services: geo service
              A  new  geometry  service  has  been adedd to the distribution. This provides support for modeling
              various shapes and solids.

              Core services: cda service
              The streamable objects has been added to the crowd data analytics service.

       Release 2.5

       Release features

              Core engine: release 2.5.2
              This is the relase 2.5.2. The release includes support for the GCC 5 / CLANG  5  compilers  suite.
              Thank's to Martin Michlmayr for pointing this out.

              Core engine: release 2.5.1
              This  is  the  relase  2.5.1.  This  is  an  emergency release that fixes a bug in the uri percent
              encoding which can be downloaded from here . It's amazing that it was not found before.

              Core engine: clang compiler with C++11 support
              The system infrastructure has been cleaned to support the clang compiler. The code has  also  been
              cleaned to support the C++11 standard which is now the compilation default.

              Core engine: standard library
              A  Styleobject  to  support  ina  generic  way  the  formating  operation for the literal objects.
              Consequently, most of the literal objects have been cleaned and now support  a  formatmethod  that
              operates  with a Styleargument. The PrintTableobject has been enhanced to support column extension
              and column style.

              Core modules: mth module
              The lnmethod is now the standard prefered name for the natural logarithm. Several bugs  have  been
              fixed  in  the  real matrix implementation with respect to the openmp implementation. A new solver
              based on the Modified Gram-Schmidt algorithm. has been added. Note also  that  the  direct  solver
              interface has been updated.

              Core modules: nwg module
              The Uriclass has been enhanced to support partial uri path extraction.

              Core modules: sps module
              The  spreadsheet  module  has been considerably overhauled. A new object Lstackhas been added as a
              literal stack which can be bound to the cell as a literal array. The sheet formating has been also
              revisited to make profit of the new Styleobject has well as the printable transformation.

              Core modules: sys module
              The Meterobject has been added as a mean to help for the performance measurements.

              Core module: xml module
              The  unicode  conversion  with  reference has been updated to adapt itself to the stream or buffer
              encoding during a write process.

              Core services: phy service
              A preliminary set of nuclear physics constants have been added.

              Core services: csm service
              The Workspaceobject has been enhanced to support output stream.

              Core services: web service
              A JsonMimeobject has been added. It is designed to translate  various  object  into  a  Javascript
              object notation format. At this time, only the real data samples Rsamplesobject is supported.

       Release 2.4

       Release features

              Core engine: unicode 6.3.0
              The Unicode 6.3.0 database is now supported in this release.

              Core engine: containers
              The  standard  object  incorporates an alias table which enables the mapping of property name in a
              plist. The Trieobject has been enhanced to support a reference index. The trie name mapping is now
              obtained with the to-namesmethod.

              Core engine: parallel support
              This  release  incorporates  an experimental support for OpenMP. The OpenMP threads are compatible
              with the afnix threads and support is initially available in the math module. This option must  be
              enabled explicitelly in the build setup to be effective.

              Core engine: crowd service
              The  session  user  registration  id  has been enhanced. The concept of crowd service is available
              throuh the generic Xaasobject, and more specifically with the Saasobject. The Workspaceobject  has
              been enhanced with a public zone.

              Core modules: sio module
              The  Intercomobject  has  been  enhanced  to  support  a  buffered serialization which was somehow
              mandatory when operating in udp mode.

              Core modules: net module
              Numerous deadlocks in the socket class have been fixed as well as udp inconsistencies.

              Core modules: mth module
              The QmrKrylov solver has been added as part as the iterative solver family. The krylov convergence
              test  has also been improved. The Qrsolver has been added as part as the direct solver family. The
              sparse matrix has been enhanced to support a generic iterator. The whole solver  architecture  has
              been  revisited  and  is  now a class based architecture with a type driven factory. Numerous bugs
              have been fixed. Vector and matrix now support row permutations.

       Release 2.3

       Release features

              Core engine: release 2.3.2
              This is the relase 2.3.2. The release fixes the real samples array serialization.

              Core engine: release 2.3.1
              This is the release 2.3.1. Release 2.3.0 was an internal work which has not been distributed.

              Core engine: interpreter line read
              The interpreter object can read a line or a passphrase from the attached terminal.

              Core engine: interpreter daemon and librarian
              The interpreter can be put in daemon mode. This mean that a new detached processed is spawned with
              the interpreter attached to it. The librarian has been simplified and the loader integrated inside
              the interpreter.

              Core engine: input stream
              The input steam nom implements a stream consumption method designed to accumulate a stream content
              into the stream buffer. Subsequently, the buffer can be converted into a string. The serialization
              of eos has been fixed.

              Core engine: string resolver
              The resolver has been enhanced to map a file into a string. This methodology also applies to  file
              present in a librarian.

              Core engine: property list
              The Plistobject has been enhanced to better support the merging operation.

              Core engine: unicode 6.2.0
              The Unicode 6.2.0 database is now supported in this release.

              Core modules: mth module
              The  real  matrix  and  vector  implementation  has  been  redesigned  to  support a unique sparse
              representation. The serialization has also been added to these objects.

              Core services: csm module
              The crowd object set has enhanced with an intercom crowd object which simplify the transmission of
              registered  crowd  object.  A  cart and a cart set object have been added as a mean to store crowd
              object. The session object and sessions set objects have been added. The session object  has  been
              enhanced to produce the associated session cookie, with an augmented session closing mechanism.

              Core modules: nwg module
              The UriPathobject has been added as a uri path manipulator for http server.

              Core services: phy service
              The silicon energy gap has been fixed to the standard value. The periodic table structure has been
              revisited.

              Core services: wax service
              The xhtml form elements have been added to the service. A base element class has been  also  added
              to almost all elements. The base class provides support for setting the common element attributes.

       Release 2.2

       Release features

              Core engine: hurd platform
              The  Hurd platform is now supported in this release. Thanks to our contributor for delivering this
              new platform.

              Core engine: unicode 6.0.0
              The Unicode 6.0.0 database is now supported in this release.

              Core engine: object updates
              The lexical analyzer is now an object in its own. It can be used to construct other object from  a
              string description.

              Core modules: mth module
              An   automatic   linear   system  verification  has  been  added  to  the  linear  solver.  Jacobi
              preconditionner have been added to the Krylov solvers and Newton solvers have been improved.

              Core services: phy service
              The periodic table of the elements is under construction and should be completed soon.  The  table
              will  provides  the  information  for  each  elements,  including  name, symbol and other physical
              constants. The suport for intrinsic carrier concentration is now  available.  This  is  a  cryptic
              feature for people working on semiconductors.

       Release 2.1

       Release features

              Core engine: superh processor
              The SuperH processor is now supported in this release. The SuperH is a 32 bits processor.

              Core engine: nan real number
              The  implementation  now supports the concepts of Not a Numberor NAN as a whole. A real object can
              set and tested for NAN.

              Core engine: indirect librarian resolver
              The resolver has been enhanced to support indirect librarian reference.

              Core modules: csm module
              The personnal information managementmodule has been renamed into the  crowd  session  managementor
              afnix-csmmodule.

              Core modules: mth module
              The  mathmodule has been dramatically enhanced. The Rsamplesobject has been added for storing data
              samples. Function and polynomial objects have added to support generic function  computation.  The
              non-linear Newton system solver has been added as an object.

              Core services: svg service
              The  Scalable  Vector  Graphicservice has been added. The service provides the support for the SVG
              1.1 standard and allows the automatic generation of SVG compliant code.

              Core services: phy service
              The Physicsservice has  been  added.  The  service  provides  the  support  for  standard  physics
              operations. In particular, the most common physical constants are defined in this service.

       Release history

              08/24/2011: release 2.1.1
              AFNIX  2.1.1  has been released. This is an emergency release that corrects a small problem in the
              clean rule with the static directory.

       Release 2.0

       Release features

              Core engine: standard objects
              The BlockBufferobject has been added to the standard object library.  Furthermore,  the  Bufferhas
              been  adapted  to operate as a base class for the block buffer and the shlmethod has been added to
              the buffer object as a mean to shift the buffer. As consequence, the default operating mode for  a
              buffer  is  the  BYTEmode.  When  operating with strings, the UTF8mode might be more suitable. The
              BitSetobject has been renamed to Bitsetand the interface has  been  cleaned.  The  Vectorhas  been
              cleaned. The object-ppredicate has been fixed.

              Core engine: thread engine
              The  thread  engine  has  been  completly  redesigned  and  extensivelly  tested on 32 and 64 bits
              platforms. It is no longer a problem  to  operate  with  more  than  32K  threads  simultanesouly.
              Furthermore,  the concept of thread pool has been added to the engine. The end-ppredicate has been
              added to the thread object to indicate a succesful thread completion.

              Core engine: form reader
              The Readerobject has been added as a form reader. The reader parses an input stream and produces a
              form until the end-of-stream. The Readerprovides the support for string based execution.

              Core engine: default librarian module
              The Librarianobject has been enhanced to support the concept of default exeution module. When such
              module and when the interpreter is requested to do so, the module is automatically  loaded  during
              the execution.

              Core modules: nwg module
              The HttpProtodefault version has been move to 1.1 for both the request and response objects.

              Core modules: sio module
              The  InputMappedclass  has  been  enhanced  to  provide the facility for mapping buffer as well as
              acting as a null character generator. The OuputBufferobject has been  added  as  a  buffer  output
              stream.  With  the addition of a form reader, the interpreter communication class Intercomhas been
              added to the standard i/o module.

              Core modules: xml module
              The XneCondobject has been enhanced to support various xml object. The XmlPihas been  enhanced  to
              support attributes derivation from the string value.

              Core modules: itu module
              The  itumodule  is a new module. It has been added with a complete support for the ASN.1 standard.
              ASN.1 is essential for the support of certificates.

              Core clients: axs client
              The axsclient has been removed from the core distribution. All of the client  functionalities  are
              now available in the spreadsheet module.

       Release 1.9

       Release features

              Core engine: object unreference
              The long awaited unrefreserved keyword has been added as a mechanism to unreference a symbol.

              Core engine: object predicate
              The object-ppredicate has been added as a standard predicate. The predicate is the negation of the
              nil-pstandard predicate. The method-ppredicate has also been added as a standard predicate.

              Core engine: stop/resume parsing
              The file stream parsing has been enhanced with the help of the stop «and resume »characters.  When
              the  stop  characters  is  found, all parsing operations are suspended until a resume character is
              found.

              Core engine: extended exception attribute
              The aboutsymbol has been added to the exception object as extended exception reason. For  a  given
              reason, the file name and line number is added to the exception reason.

              Core engine: string objects
              The  Strvecstring  vector  class  has  been added to the core library. The class is similar to the
              Vectorclass except that it operates with strings and provides additional strings related methods.

              Core engine: counter object
              The Counterobject has been added as a reserved object. The counter is designed to be used directly
              in loop.

              Core engine: library cleaning
              The  core  library  has  been  extensively  cleaned  in preparation for the next major release. In
              particular, numerous memory leaks have been removed and some classes derivations have been  fixed.
              A  major  bug  in  the  closure  argument  counting has also been discovered and fixed during this
              process.

              Core module: sio module
              The Pathnameobject has been enhanced to detect the  type  of  path  associated  with  the  object.
              Additionally, a normalizemethod has been added.

              Core module: sio module
              The  FileInfoobject  has  been  added to the module. The class provides an immediate access to the
              principal file parameters such like it size or its modification time.

              Core module: sio module
              The NamedFifoobject has been added to the module. The class  provides  the  support  for  a  large
              string based fifo with file saving capabilities.

              Core modules: nwg module
              Several  predicates  and functions related to media type conversion have been added to the module.
              In particular, a media type extension conversion has been implemented. The  HttpResponseclass  has
              been enhanced with several methods for status code checking.

              Core modules: sec module
              Support  for  the  Digital  Standard  Algorithm, (aka DSA) as specified by FIPS-PUB 186-3 has been
              added  to  the  library.  The  implementation  incorporates  several  new  objects  to  manipulate
              signatures.

              Core modules: sec module
              The RC2block cipher algorithm has been added to the module.

              Distribution: documentation
              The documentation distribution rules have been rewritten and the "publish" rule has been added.

       Release 1.8

       Release features

              Build process: reset rule
              The distcleantop level makefile rule has been renamed as reset.

              Core engine: stream object
              The  stream  engine  has  been  cleaned  with  a  new architecture. Two new objects InputStreamand
              OutputStreamacts as the foundation of this new design.

              Core modules: nwg module
              The HttpProto, HttpRequestand HttpResponseobjects have  been  completely  rewritten.  In  the  new
              model,  both  objects  can  operate  on  the  server and client side. The HttpReplyobject has been
              removed.

              Core modules: sec module
              The Sha224hash function has been added. This class concludes the implementation of all SHA  family
              hash functions. The Desclass that supports the DES stream cipher has been added to the library.

              Core modules: xml module
              The XmlRootclass has been enhanced in order to ease the declaration node existence verification as
              well as the encoding mode extraction.

       Release 1.7

       Release features

              Core clients: random engine seeding
              A new option controls the seeding of the random engine. By default,  in  debug  mode,  the  random
              engine  is  not  seeded unless requested by the user. In optimized mode, which is the normal mode,
              the random engine is seeded at initialization.

              Core engine: base number object
              The long awaited base number object has been added. The Numberobject serves the Integer, Real, and
              Relatifobjects. The base number object is designed to ease the task of formatting numbers.

              Core engine: relatif number enhancements
              The  relatif  number  object  has  been  enhanced to support extra methods that are used for large
              number computation. This include the power and gcd computation which are used by the cryptographic
              engine.  In  addition,  the base arithmetic relatif methods have been optimized and certain corner
              bugs in the division fixed.

              Core engine: unicode database
              The core engine has been updated with the new Unicode 5.1.0 database.

              Core engine: serious bugs
              A serious bug in the form synchronize engine that would cause an engine crash when a form  is  nil
              has been fixed.

              Core modules: sio module
              A new object called Pathlisthas been added to support the manipulation of path list. The object is
              designed to ease the file name resolution in the presence of search path. The module has also been
              extensively cleaned.

              Core modules: mth module
              A  new  module called afnix-mthhas been added to the standard distribution. The module is designed
              to integrate the base mathematical functions and  objects  available  in  the  engine.  With  such
              introduction,  the  random  number  generation  has been moved into this module. Additionally, the
              functions needed to generate prime numbers have been added to this module.

              Core modules: sec module
              A new module called afnix-sechas been added to the standard distribution. The module  is  designed
              to  integrate  the  security  functions and cryptographic objects.Two new hasher objects have been
              added to the security module. The  Md2object  implements  the  MD2  message  digest  algorithm  as
              described  in  RFC 1319. The Md4object implements the MD4 message digest algorithm as described in
              RFC 1320. The standard key derivation functions KDF1 and KDF2 have  been  added  to  the  security
              module. The asymmetric cipher RSA has also been added to the security module and the Keyobject has
              been updated to reflect this.

       Release history

              09/01/2008: release 1.7.1
              AFNIX 1.7.1, the « An Armor release » has  been  released.  This  is  an  emergency  release  that
              corrects  a  major problem within the evaluation process. Although, the problem has been fixed, it
              involves a large piece of code, with a major redesign of the evaluation engine.  It  is  therefore
              recommended to upgrade the engine immediately.

              08/08/2008: release 1.7.0
              AFNIX 1.7.0, the « An Armor release » has been released. This is a major release that incorporates
              numerous new features in the field of cryptography. The release also incorporates the latest 5.1.0
              Unicode database.

       Release 1.6

       Release features

              Core engine: object collection redesign
              The core engine has been seriously modified to accommodate for a new object collection system (aka
              garbage collection). The new system is more robust and provides new mechanism that will permit  to
              reclaim cyclic structure as well as destroying global object on demand.

              Core engine: macos x support
              The core engine has been adapted to support the new MACOS X Leopard operating system.

       Release history

              01/01/2008: release 1.6.0
              AFNIX  1.6.0  has been released. This release provides is an intermediate candidate toward another
              major release. The most important thing is that the object collection engine has  been  redesigned
              and that MACOS X Leopard is now supported.

       Release 1.5

       Release features

              Core engine: unicode 5.0 support
              The  core engine continues to be updated in order to better support the Unicode 5.0 standard. With
              this release, the string normalization scheme is now in place and used by default internally. This
              implies  among  other things, a better support for multiple diacritics as well as the beginning of
              the standard collation algorithm.

              Core engine: log file support
              The Loggerbase class has been enhanced to support the generation of a log file. An  output  stream
              can now be bound to the object.

              Core engine: class defer support
              The  concept of class deferobject has been added to the Classobject. The defermode is the opposite
              of the infermode and provides a mechanism for base class creation.

              Core engine: print table header
              The PrintTableobject has been enhanced to support the concept of table header.

              Core engine: exception re-throwing
              The exception object whatcan be thrown with the reserved keyword throw. This provides a  mechanism
              to re-throw an exception.

              Core engine: critical bug with return form
              A  critical  bug  in  the  core  engine  affecting the behavior of the returnreserved keyword in a
              tryblock has been fixed. A return form inside a try block was incorrectly generating an  exception
              which was subsequently caught by the try block.

              Core modules: net module
              The  base  network  module has been enhanced to better operate with IPV6. In particular, when both
              IPV4 and IPV6 stacks are present and a host name (typically localhost) have an address entry,  the
              socket constructor make sure it can build an object. The IPV6 address display has been rewritten.

              Core modules: sio module
              A  new  object  called  Pathnamehas  been  added  to  support  the manipulation of system path. In
              addition, two new functions mkdirand mhdirhave been also added to support the directory  creation,
              both normally and hierarchically.

              Core modules: nwg module
              The  Urihas  been  dramatically  enhanced  to  conform  to  the  RFC 3986. In particular, the path
              representation for urn is now working properly. The cookie object has been massaged to support the
              cookie version 1, although it does not seem to be supported (yet!) by the browsers.

              Core modules: xml module
              The  xml module has been enhanced with a new parsing system called the simple model. In the simple
              model, nodes are parsed in a linear fashion. The node content is available in the form of a string
              and its interpretation is at the user discretion.

              Core service: wax service
              The afnix-wamservice has been renamed as afnix-wax. The service has also been updated with two new
              objects, namely the XmlMimeand XhtmlMimewhich permits to build a mime  representation  of  an  xml
              tree.  Several  xhtml  objects  have  also been added to complete the collection. This include the
              XhtmlScriptfor example.

              Core service: xpe service
              The afnix-xpeservice has been added as  a  new  service.  The  xml  processing  environment  (xpe)
              provides  a  xml processor that permits manipulate the whole xml tree with the help of various xml
              processor features. In particular, the service provides the support for the xml include extension.

              Core projects: apx project
              This release incorporates for the first time, the concept of  core  project,  which  represents  a
              librarian  or  an  application. The first project is the AFNIX protocol extension or apxwhich is a
              message based protocol  designed  to  transport  request/reply  messages  within  a  client/server
              environment.  The  message  is  built  with  the  xml  library  and  the  librarian  provides  the
              encapsulation layer.

              Core projects: amd project
              The AFNIX media dumper or amdproject is a complete application designed to illustrate  the  design
              of an application. The application permits to dump an uri content into a file.

       Release history

              06/08/2007: release 1.5.2
              AFNIX 1.5.2 has been released. This is a minor release that fixes the build process with GCC 4.2.

              04/21/2007: release 1.5.1
              AFNIX 1.5.1 has been released. This is a minor release that fixes the documentation targets during
              the build process.

              04/18/2007: release 1.5.0
              AFNIX 1.5.0 has been released. This release provides a xml processor in the form of a new  service
              module called 'xml processing environment' or xpe. The whole documentation generation is now fully
              automated, thanks to the new xml processor. This release also provides a better  support  for  the
              'web application extension' or wax service. The support for the GNU/FreeBSD platform has also been
              added in this release. As usual, this release comes with its wagon of bug fixes, notably this time
              in the network field especially with IPV6 on the FreeBSD platform.

       Release 1.4

       Release features

              Core engine: unicode 5.0 support
              The core engine has been substantially changed to support the new Unicode 5.0 standard. As of now,
              the  engine  is  in  place  internally,  but  not  fully  activated.  In  particular,  the  string
              normalization  is  implemented  but  not  activated.  The next release should incorporate the full
              system with a change that should be transparent to the user.

              Core language: instance inference
              An instance inference mechanism -- which is equivalent to the concept of  virtual  constructor  --
              has been added to the core engine. Such system permits to derive top instance from a base instance
              construction.

              Core language: print table object
              The PrintTableobject has been enhanced with a dumpmethod similar to the formatmethod.

              Core language: property list object
              The Propertyand the Plistobjects have been added to the standard library. a property is name/value
              pair. The property list object is an iterable object that stores property objects.

              Core modules: xml module
              A  new  module  called  afnix-xmlhas been added. The module provides the foundation for a full xml
              1.0/1.1 support. The module also includes a parser that permits to build  xml  tree.  A  xml  tree
              writer  is  also  part  of  the  module functionality. A xml processor is not yet available and is
              expected in the next release.

              Core modules: nwg module
              A new module called afnix-nwghas been added. The module  provides  the  support  for  the  network
              working  groupobjects  such  like  Uriobject. The module also provides the foundation for the mime
              support.

              Core modules: web module
              The afnix-webmodule has been removed and replaced by the afnix-wamservice.

              Core service: wam service
              The afnix-wamservice has been added as the first service into the  core  distribution.  A  service
              differs  from  a  module  in  the  sense  that  it  is a combination of different modules. The web
              application managementservice depends on the xml and nwg modules. The  service  provides  all  the
              functionality to support a http session, including xhtml page generation and cgi request reply.

       Release history

              01/28/2007: release 1.4.3
              This release is a minor release that fixes the "install" rule in the etc directory.

              01/01/2007: release 1.4.2
              This  release  is a minor release that fixes the tcp socket read method that incorrectly handles a
              connection reset by the peer. The Timeclass also incorporates a small fix for the to-rfcmethod.

              11/09/2006: release 1.4.1
              This release is a minor release that fixes the lexer for not parsing correctly some floating point
              numbers.  The  standard i/o documentation is also fixed. A print media support is now available in
              the documentation.

              11/06/2006: release 1.4.0
              This release incorporates the Unicode 5.0 standard as well as a brand new xml module. This release
              also introduces the concept of service module, which provides additional functionalities on top of
              regular modules. A new service module called web application managementor  wamis  also  introduced
              with  this  release. This service module is based on the newly created xml module and replaces the
              old web module which has been obsoleted immediately.

       Release 1.3

       Release features

              Core language: ISO-8859 transcoding support
              The core engine has been modified to integrate a character transcoder that permits the support all
              ISO-8859codesets  which  are  mostly  used  for  the  encoding  of european and arabic characters.
              Depending on the locale settings, the transcoder automatically remaps the 8 bits  characters  into
              their  respective  unicode  character.  All  clients  have been updated to detect their associated
              locale and to set automatically the appropriate transcoder. A new option -ehas been added to force
              a particular encoding.

              Core language: Logger base class
              A logging base class has been added. The logging facility provides the interface to store messages
              by time and level. This class is further extended in the modules.

              Core language: Heap class
              A heap class has been added. The heap can operate in ascending or descending mode. This class  can
              be used to support priority queue.

              Core language: Option class
              An  option class has been added in order to ease the option capture when designing an application.
              The class permits to define the valid options and offer a powerful retrieval mechanism.

              Core language: Date class
              The Timeclass has been completely changed and a new Dateclass has been added.  The  new  mechanism
              provides a better separation between the time and the date, increase the date range and authorizes
              the support for multiple calendar.

              Client: cross spreadsheet client
              The axsclient has been modified to support  the  axs:insert-marker,  axs:insert-headerand  insert-
              footercontrol commands.

              Core modules: speadsheet module
              The  Folioand  Sheetclasses have been substantially updated to support additional information. The
              Sheetalso supports the concept of markers that marks the sheet columns by literals. The concept of
              column  tagging  has  been  added  with the associated search methods. All classes also contain an
              information field. The importation mechanism now supports a cons cell that defines both  the  cell
              name and the cell value.

              Core modules: web module
              The  Tableclass  has  been  modified  to  support the concept of table data header. The associated
              methods have been added to the  class  and  a  new  HtmlThhas  been  added.  The  concept  of  tag
              propagation  has  also been added. If a tag element already exists, this one is not added. This is
              particularly true for the classtag that is now part of the class  constructor.  The  HtmlPageclass
              has been put in strict conformance with xhtml 1.1 and the XHtmlpageclass has been removed.

              Core modules: pim module
              A  new  module  called  the  afnix-pimmodule has been added to the base distribution. The personal
              information management or pimmodule is designed to ease the management of personal information and
              agenda.

              Core modules: gfx module
              A  new  module  called  the  afnix-gfxmodule  has  been added to the base distribution. The module
              contains the base class that supports the graph data structure which was previously  part  of  the
              standard library.

       Release 1.2

       Release features

              Core language: Unicode support
              The  core  engine has been substantially modified to integrate the support for Unicode characters.
              Depending on the system settings the reader automatically adjust itself to operate in byte mode or
              in UTF-8 mode. The Stringand Characterclasses are now operating with a Unicode representation. The
              design of an Unicode based engine also impacts several classes like the  Regex,  Bufferand  stream
              classes. A new class called Byteis also designed to handle byte character. A new stream model with
              a base Streamclass has also been added. The  full  support  with  Unicode  character  is  not  yet
              completed.  In  particular,  certain  codesets are not supported at all. This is particularly true
              with case-conversion functions.

              Core language: orphan instance and reparenting
              The object model now supports the creation of orphan instancewhich is an instance without a  class
              attached  to  it.  The  instance  can be later bound to a class and such class can even be changed
              during the course of the program execution.

              Core modules: network module
              The Addressclass has been updated to reflect the access to address aliases.

              Core modules: text processing module
              The Literateclass has been updated to reflect the support of Unicode  characters.  The  class  can
              operate both in byte mode or in Unicode character mode.

       Release 1.1

       Release features

              Core language: Large file support
              Support  for  the  large  file  system  has  been added in the base distribution. All input/output
              operations as long as they are supported by the operating system are now done in 64 bits mode.

              Core libraries: Secure hash algorithm
              The cryptographic library incorporates the support for the SHA-1,  SHA-256,  SHA-384  and  SHA-512
              hash algorithms.

              Core libraries: Standard symmetric cipher
              The cryptographic library incorporates the support for the Advanced Encryption Standard (AES) as a
              symmetric cipher.

              Core libraries: ODC library renamed
              The ODC library has been renamed to SPS which stands for spreadsheet library.  This  new  name  is
              considered more appropriate for the function the library achieves.

              Core libraries: xhtml 1.1 support
              The XhtmlPara class is now configured to support XHTML 1.1 with utf-8 encoding.

              Documentation: XML based documentation
              The  documentation has been rewritten completely in XML. A DTD as well as the necessary XSLT style
              sheets have also been designed to produce a professional  documentation  which  can  be  used  for
              printing or for online browsing.

       Release history

              10/04/2005: release 1.1.2
              This release incorporates a fix for a terminal capability error.

              08/25/2005: release 1.1.1
              This release incorporates fixes for several build problems with the FreeBSD platform.

              08/19/2005: release 1.1.0
              The  1.1  release  is yet another milestone that incorporates a full redesign of the documentation
              tree as  well  as  the  inclusion  of  the  cryptographic  library  that  features  some  original
              implementations. The full documentation is now available in XML format and can be accessed online.

       Release 1.0
       The 1.0 release is the initial release. This release replaces the old ALEPH programming languagewhich has
       been discontinued.

       Release history

              04/19/2005: release 1.0.3
              This release incorporates the necessary files that support GCC 4.  It  also  provides  some  minor
              fixes that were preventing the compilation on some 64 bits platforms.

              03/02/2005: release 1.0.2
              This release incorporates a minor fix that could cause the build process to fail.

              02/16/2005: release 1.0.1
              This release incorporates a minor fix that could cause the build process to fail.

              01/16/2005: release 1.0.0
              This  is  the  primary release 1.0.0 which originated from the ALEPH programming languageand which
              has been discontinued. A complete history of the language is provided in the description page.