xenial (7) afnix-notes.7.gz

Provided by: afnix_2.5.1-1_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, IA64, SPARC-32, SPARC-64    Linux 2.4 and 2.6
       FreeBSD    X86-32, X86-64, IA-64, SPARC-32, SPARC-64   FreeBSD 6.x, 7.x, 8.x
       Darwin     PPC-32, PPC-64, X86-32, X86-64              MacOS X 10.4 Tiger, 10.5 Leopard, 10.6 S
       Gnu        X86-32, X86-64                              GNU KBSD, GNU Hurd

       Specific  processors  like  the  Alpha,  M68K,  ARM,  MIPS  and  SUPERH  are  also  supported  on certain
       distributions. The PowerPC (PPC) processor is primarily supported with the Darwin platform (MACOS) and is
       also  working  with the Linux platform. 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  3  and  GCC  4.  No
       other  compiler  have  been  tested. You will also need the GNU Make package. With some distributions the
       command is called gmake. Note that the Makefile hierarchy is designed to operate safely  with  the  -jGNU
       Make option.

       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  world  command  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 make command should be replaced by the gmake command. The make status command 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-setup command 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 -o option configures the
       compilation in optimized mode. Use the -g option can be used to configure  the  build  process  in  debug
       mode.  The  --prefix option sets the installation directory. Note that the compilation process is done in
       the distribution tree and that the --prefix option affects  only  the  installation  operations.  The  -v
       option 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  prefix  option  set the root installation directory. The binary and library installation directories
       are derived from it. The shrdir set the shared installation directory which  is  normally  used  for  the
       installation  of  the  manual  pages  on most popular systems. the altdir sets the alternate installation
       directory. Normally this path should be empty as it affects the path for the  etc  directory.  This  flag
       should  be  used  when  using  a  prefix  to  unusual destination. the sdkdir option sets the path of the
       platform system development kit. This option is only used with the Darwin platform. The  compiler  option
       can  be  used to force a particular compiler with the help of a compiler configuration file. The proctype
       option can be used to force a particular processor architecture. The -s or --static option can be used to
       build  a  static  executable.  Normally,  this  option  should  not  be used since it restrict the use of
       extension modules. The dynamic controls 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 make accepts the -j that 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 report mail 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/local  directory.  This can be overwritten with the --prefix option during the
       configuration process.

       zsh> make install

       There are several variables that controls the behavior of the install rule. 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 doc rule builds the  documentation  and
       the   publish  rule  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 clean rule.

       zsh> make clean

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

       zsh> make reset

       Running AFNIX
       The axi command invokes the interpreter. In order to operate properly,  the  LD_LIBRARY_PATH  environment
       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 exp contains various examples which can be run. Each example is labeled according to  their
       use  in  the  volume 1 of the documentation set. Example 0101.als prints the message hello world. Example
       0501.als prints various information about the system configuration.

       zsh> axi 0501
       major version number   : 2
       minor version number   : 2
       patch version number   : 0
       interpreter version    : 2.2.0
       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 --proctype  option  of  the
       afnix-setup  command.  Currently  the  distribution  supports the 586 and 686 architectures for the Intel
       platform. The ultra architecture 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/ext directory. Simply going into the appropriate directory  and  running  the  make
       command  will  build  the  extension.   The asi extension 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/bin directory.

       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 etc directory 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 Makefile which 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-setup command located in the cnf/bin directory.
       This command is used to configure the distribution. Package maintainers are encouraged  to  use  it  with
       specific options.

       Platform detection
       The  afnix-guess  command  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-2.6-ia32-generic

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

       compiler: gcc
       lktype  : dynamic
       lkmode  : dylib

       Such  options  instructs the configuration utility, that the default compiler is gcc and the linking mode
       should operates in dynamic mode by using the dylib rule. These default values can be overwritten with the
       equivalent option of the afnix-setup command. Note that the compiler version is automatically detected by
       the system. The afnix-vcomp command 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 .cxx and 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/plt directory. The .cxx extension indicates that
       the file might use system specific include files. The .cpp -- and the associated .hpp --  files  are  the
       normal  C++  source  files. The .cpp extension 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/mak directory. Normally they should be left untouched.
       The most important one is the afnix-rule.mak file that defines most of the compilation and linking rules.
       Additionally,  during  the  setup operation, the afnix-setup command creates several files in the bld/cnf
       directory. The bld is the build directory. The afnix-plat.mak file is the platform configuration file and
       the afnix-comp.mak is a link to the appropriate compiler configuration file.

       Compilation
       Normally,  the compilation process is immediate. Just invoking the make command 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 .cpp files.

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

              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 .cxx files.

       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  bld  directory.  This  directory
       contains the bld/bin for binaries, bld/lib for libraries and bld/hdr for the header files.

       Building the package
       The  package  can  be  built  by  accessing the bld directory or by invoking the install rule. The second
       method is not recommended for package construction, since it might trigger some file installation without
       any  control.   The  etc  directory  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 Makefile contains 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.patch which 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 2.5

       Release features

              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  Style  object  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 format  method  that
              operates  with  a  Style  argument.  The  PrintTable  object  has  been enhanced to support column
              extension and column style.

              Math module: natural logarithm and mgs solver
              The ln method 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.

              Working module: partial uri name
              The Uri class has been enhanced to support partial uri path extraction.

              Spreadsheet module: global enhancements
              The  spreadsheet  module has been considerably overhauled. A new object Lstack has 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 Style object has well as the printable transformation.

              System module: performance meter
              The Meter object has been added as a mean to help for the performance measurements.

              Physics service: nuclear constants
              A preliminary set of nuclear physics constants have been added.

              Cloud service: workspace stream
              The Workspace object has been enhanced to support output stream.

              Web service: json mime
              A  JsonMime  object  has  been added. It is designed to translate various object into a Javascript
              object notation format. At this time, only the real data samples Rsamples object is supported.

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

       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 Trie object has been enhanced to support a reference index. The trie  name  mapping  is
              now obtained with the to-names method.

              Core modules: sio module
              The  Intercom  object  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 Qmr Krylov solver has  been  added  as  part  as  the  iterative  solver  family.  The  krylov
              convergence test has also been improved. The Qr solver 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.

              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: cloud service
              The session user registration id has been enhanced. The concept  of  cloud  service  is  available
              throuh  the  generic Xaas object, and more specifically with the Saas object. The Workspace object
              has been enhanced with a public zone.

       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 Plist object 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 modules: csm module
              The cloud object set has enhanced with an intercom cloud object which simplify the transmission of
              registered  cloud  object.  A  cart and a cart set object have been added as a mean to store cloud
              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 UriPath object 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 Number or 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 management module has been renamed into the cloud session management  or
              afnix-csm module.

              Core modules: mth module
              The  math  module  has  been dramatically enhanced. The Rsamples object 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 Graphic service 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 Physics service 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 BlockBuffer object has been added to the standard object library. Furthermore, the Buffer  has
              been  adapted to operate as a base class for the block buffer and the shl method 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  BYTE mode. When operating with strings, the UTF8 mode might be more suitable. The
              BitSet object has been renamed to Bitset and the interface has been cleaned. The Vector  has  been
              cleaned. The object-p predicate 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-p predicate has been
              added to the thread object to indicate a succesful thread completion.

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

              Core engine: default librarian module
              The  Librarian  object  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 HttpProto default version has been move to 1.1 for both the request and response objects.

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

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

              Core modules: itu module
              The  itu module 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 axs client 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 unref reserved keyword has been added as a mechanism to unreference a symbol.

              Core engine: object predicate
              The  object-p  predicate  has been added as a standard predicate. The predicate is the negation of
              the nil-p standard predicate. The method-p predicate 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 about symbol 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  Strvec  string  vector  class has been added to the core library. The class is similar to the
              Vector class except that it operates with strings and provides additional strings related methods.

              Core engine: counter object
              The Counter object 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 Pathname object has been enhanced to detect the type  of  path  associated  with  the  object.
              Additionally, a normalize method has been added.

              Core module: sio module
              The  FileInfo  object  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 NamedFifo object 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 HttpResponse class  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 RC2 block 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 distclean top 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 InputStream and
              OutputStream acts as the foundation of this new design.

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

              Core modules: sec module
              The Sha224 hash function has been added. This class concludes the implementation of all SHA family
              hash functions. The Des class that supports the DES stream cipher has been added to the library.

              Core modules: xml module
              The  XmlRoot  class 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 Number object serves  the  Integer,  Real,
              and Relatif objects. 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 Pathlist has 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-mth has 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-sec has 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 Md2 object  implements  the  MD2  message  digest  algorithm  as
              described  in RFC 1319. The Md4 object 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 Key object
              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 Logger base 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  defer  object  has  been added to the Class object. The defer mode is the
              opposite of the infer mode and provides a mechanism for base class creation.

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

              Core engine: exception re-throwing
              The exception object what can 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 return reserved keyword in a try
              block 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  Pathname  has  been  added  to support the manipulation of system path. In
              addition, two new functions mkdir and  mhdir  have  been  also  added  to  support  the  directory
              creation, both normally and hierarchically.

              Core modules: nwg module
              The  Uri  has  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-wam  service  has been renamed as afnix-wax. The service has also been updated with two
              new objects, namely the XmlMime and XhtmlMime which permits to build a mime representation  of  an
              xml  tree. Several xhtml objects have also been added to complete the collection. This include the
              XhtmlScript for example.

              Core service: xpe service
              The afnix-xpe service 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 apx which 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 amd project 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 PrintTable object has been enhanced with a dump method similar to the format method.

              Core language: property list object
              The Property and the Plist objects 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-xml has 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-nwg has been added. The module provides  the  support  for  the  network
              working  group  objects such like Uri object. The module also provides the foundation for the mime
              support.

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

              Core service: wam service
              The afnix-wam service 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 management service 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 Time class also incorporates a small fix for the to-rfc method.

              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 management or wam is 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-8859  codesets  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  -e  has  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 Time class has been completely changed and a new Date class 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 axs client has been modified to support the axs:insert-marker, axs:insert-header  and  insert-
              footer control commands.

              Core modules: speadsheet module
              The Folio and Sheet classes have been substantially updated to support additional information. The
              Sheet also 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  Table  class  has  been  modified to support the concept of table data header. The associated
              methods have been added to the class and  a  new  HtmlTh  has  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 class tag that is now part of the class constructor. The HtmlPage  class
              has been put in strict conformance with xhtml 1.1 and the XHtmlpage class has been removed.

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

              Core modules: gfx module
              A  new  module  called  the  afnix-gfx  module 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 String and Character classes are now operating with a Unicode representation.
              The design of an Unicode based engine also impacts several classes  like  the  Regex,  Buffer  and
              stream  classes.  A  new class called Byte is also designed to handle byte character. A new stream
              model with a base Stream class 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 instance which 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 Address class has been updated to reflect the access to address aliases.

              Core modules: text processing module
              The Literate class 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 language which
       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 language and which
              has been discontinued. A complete history of the language is provided in the description page.