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Flibs, version 0.9, december 2008
---------------------------------

What is Flibs
-------------
Flibs is a collection of Fortran modules for various tasks:
- [cgi] facilitate web programming via CGI
- [checking] checking various aspects of the code via instrumentation
   and static analysis
- [computing] computational tasks, such as automatic differentiation
- [controlstructures] flow control structures such as finite state machines
- [datastructures] support for implementing linked lists, dictionaries
  and the like
- [filedir] OS-level tasks regarding files and directories
- [funit] a framework for unit testing, inspired by JUnit
- [ipc] inter-process communication
- [lemon] Lex/Yacc-like parser generation
- [platform] utilities to query the OS and the platform running the
  program
- [reporting] tools for generating reports in various formats
  (notably LaTex and HTML)
- [specs] tool to generate a robust reading routine from specifications,
  geared to tabular input
- [sqlite] interface to the SQLite database management system (http//www.sqlite.org)
- [streams] modules to treat files as "streams" rather than record-oriented
- [strings] modules to manipulate strings (tokenizing, varying-length strings)
- [tools] preprocessor tool to manipulate the source code
- [wrapper] tool to generate Fortran 90 and Fortran 2003 interfaces to C
  routines from the C header files

Furthermore:
- [app] a tool for generating makefile dependencies from the Fortran
  source code and an experiment at "literate programming".
- [chksys] a collection of programs to probe the properties of the
  Fortran compiler (with a similar program for C)
- [doc] documentation for the various modules (in HTML form) and several
  articles.
- [experiments] various experiments with different programming
  paradigms.
- [testmake] a program suite to generate test programs from
  simple specifications.

Documentation is not complete, but most if not all modules and utilities
come with a comprehensive example/test case.

The Flibs project is located on SourceForge: http://flibs.sf.net


Building the modules
--------------------

Each directory under the "src" directory contains one or more modules or
tools. The corresponding directory under "tests" contains the
test/example programs and makefiles (or in some case project files for
MS Developer Studio with Compaq Visual Fortran as the Fortran compiler).
Each set can be built on its own.

The makefiles are set up using macros to take care of differences in
compilers and compiler options. In principle it should not be necessary
to adapt the makefiles to your particular compiler, unless it is doing
things in a completely different way than:
- Compile the individual sources
- Link the resulting object files into an executable

The simple configuration system (configure.sh and configure.bat) helps
to set up the macros for the makefiles:
- configure.sh probes various compilers under Linux, Cygwin or MinGW
- configure.bat is meant for Windows

You can select the compiler you prefer, g95, gfortran, f95, cvf,
for instance:

   > configure.sh gfortran

Or you can select a type of build (normal, debug, optimise):

   > configure.sh -optimise


Status of the modules
---------------------

Not all modules and utilities included in the 0.9 release are fully
functional yet. They have been included mainly for completeness and
as a reminder:

- the genetic_algorithms module typically converges too fast, so that
  a suboptimal solution is returned.
- the tupleserver program is not quite finished yet, but as tuple spaces
  are a very interesting construct to achieve concurrency, it is
  included here.
- the fwrapper program, meant to generate C/C++ interfaces from Fortran
  code is still in its infancy. The cwrap program (written in Tcl) is
  functional though.


Tcl utilities
-------------

While most of the code is written in standard Fortran 90, as far as the
authors are aware, the collection also contains several utilities
written in Tcl. If you do not have a Tcl installation, you can either
get a full installation from www.activestate.com or you can use a
standalone runtime executable from www.equi4.com.


Copyright
---------

Most of the source files have been written by Arjen Markus. The modules
under "filedir", "platform" and several modules in other directories
have been written by Michael Baudin. The date/time module under
"computing" has been supplied by Arjan van Dijk.

All source code in this project is licensed via the BSD license (see
the "Copyright" file). Basically this means:
Do what you want with it, but do not claim it is your original work.