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1997-06-08
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The MetaKit Library 1.7 Copyright (C) 1996-1997 Meta Four Software
==============================================================================
DESCRIPTION
The MetaKit C++ classes implement highly-structured persistent containers.
This library can be used as an efficient database for many apps/utilities.
Some key features are: uncorruptable data files, an efficient file format,
"on-the-fly" restructuring, and portability - all using a very simple API.
For an introduction to MetaKit, see the HTML info in the "docs" directory.
For a summary of changes in this release, see the "whatsnew.txt" file.
This software can be freely downloaded for evaluation purposes. The full
C++ sources of MetaKit are available, there are no royalties involved.
Please read the disclaimer, which is in the file "include\m4kit.h".
The latest news can always be found at: http://www.meta4.com/metakit/
GETTING THE RIGHT PACKAGE
The core distribution includes documentation, header files, sample code,
and executables with DLLs which will run on Windows 3.1x, 95, and NT. If
you use MSVC 1.52 or 5.0, then you now have everything to try MetaKit in
your own applications (release build only, requires DLL versions of MFC).
The choice of MSVC/Windows is not an endorsement, it was selected because
that package is small and probably runs on "some computer near you".
As of this writing, MetaKit ports exist for Unix, Macintosh, VMS, MS-DOS,
and many Windows-hosted C++ development environments (Borland, Microsoft,
Powersoft, Symantec, Watcom). New ports are announced on the website.
For other compilers and/or platforms, you can download the library builds
from the web. The MetaKit product range consists of five categories:
1. CORE distribution: docs, headers, sample code, Windows exe/dll's
2. ADD-ON packages: platform/IDE-specific versions with libraries
3. DEVELOPER releases: debug builds and static versions of the libs
4. SOURCE code: complete source code of the library, with makefiles
5. UNIVERSAL source: additional source code for non-MFC environments
There are exactly 5 files in the CORE distribution:
readme.txt You are currently reading it...
whatsnew.txt New features and changes in this release
order.txt Order form, and details how to order on-line
setup.exe Installs the MetaKit core package after confirmation
file_id.diz Brief description, for automatic extraction
Add-on packages for DOS/Win:
m4kit17b.zip Borland C++ 4.52 (Windows 16-bit)
m4kit17j.zip DJ Delorie 2.0.1 (GNU C++ for MS-DOS)
Add-on packages for other platforms use other archive formats, such as:
m4kit17i.tgz BSDI 2.1 Gnu C++ 2.7.2 (tar, gzipped)
m4kit17m.hqx Mac Metrowerks Codewarrior 11 - 68K (stuffed, binhex)
m4kit17x.tgz Linux ELF Gnu C++ 2.7.2 (tar, gzipped)
Some of the add-ons include the core distribution to ease installation.
Distributions and ports can evolve quite rapidly, so be sure to check the
Metakit homepage on the web to make sure you have the latest release. As
of this writing (June 1997), there were over a dozen developer releases.
INSTALLING METAKIT
To install the distribution files on Windows, just extract the "setup.exe"
program and run it. After confirmation, all the files in the core package
will be copied to a directory (the default is C:\METAKIT). Please do not
install this release over an earlier version of Metakit.
The documentation for MetaKit is in HTML format, in the "docs" directory.
To use it, unzip the "M4KITDOC.ZIP" file, but please note that filenames
are longer than MS-DOS or Windows 3.1 can handle, and will be truncated.
To install an ADD-ON package (after running "setup.exe"), you must extract
its files to a new subdirectory. Then, move the DLL to the "bin" subdir,
and the import LIB to the "lib" subdirectory. All add-ons use unique file
names, so you can install as many of them as you like.
To uninstall MetaKit, simply delete the entire directory tree. MetaKit
does not install hidden files, create "ini" files, or alter the registry.
The standard or universal source code release must be installed ON TOP OF
the core distribution, they do not interfere with other installed add-ons.
Installation on Unix and Macintosh is also very simple: just extract the
archive contents using standard utilities (tar / gzip, resp. StuffIt).
ROADMAP
The MetaKit core distribution creates the following sub-directories:
bin\ Executables of the examples and DLL versions of MetaKit
docs\ Documentation in HTML format (see install notes above)
examples\ Source code examples (with MSVC 1.52 makefiles)
include\ Header files
lib\ Libraries needed to build applications
Add-on packages for Windows contain only the extra files needed for their
respective environment (usually just a dll and an import library for it).
For Unix and Macintosh, add-ons also contain the header files and some
sample code, to avoid having to convert between different text formats.
The developer releases all contain more library builds. The DLL's can be
copied to the "bin" subdir, the static/import libraries can go to "lib".
The source code releases of Metakit add the following sub-directories:
include\ More headers, for optional inlined definitions (*.inl)
ports\ Notes and makefiles for several environments (universal)
regress\ Extensive regression-test sources with sample output
src\ Source code of MetaKit (C++ files and private headers)
And also:
msvc16\ Project files to build all MSVC / Win 16 configurations
msvc32\ Project files to build all MSVC / Win 32 configurations
..etc..\ More project files and make/IDE-related files (universal)
CONFIGURATIONS
Developer releases are available to all registered users, and contain a
wide range of libraries: debug vs. release builds, static vs. dynamic, and
a choice of underlying framework (MFC, STL/string/stdio, or "universal").
As of version 1.7, Metakit supports using any of the above configurations,
(as far as supported by the environment of course). It's even possible to
use the "standard" or "universal" configurations of MetaKit in combination
with MFC, simply by adding a "#define q4_STD 1" or "#define q4_UNIV 1".
PORTABILITY
This release has been tested with a very wide range of compilers and has
been compiled on platforms ranging from small-model Intel (MS-DOS) to the
64-bit Dec Alpha (Unix as well as OpenVMS). All builds are based on the
same source code, and the datafiles are portable between all platforms.
On those platforms that support it, the library can be built as either a
static library or a dynamic DLL (shared library).
Also, on those platforms that support it (currently Unix and Win 95/NT),
memory mapped files are used to greatly reduce memory usage during access.
The library code can use STL and/or MFC classes if available, but will
work even if the compiler doesn't support templates, exceptions, or RTTI.
MetaKit does not impose restrictions if *you* wish to use any of these.
All C++ identifiers with global scope include the digit four. Namespace
support will be added when this addition to C++ becomes more widespread.
Support for other compilers, frameworks, hardware, and operating systems
will be added when needed, new ports usually require very little effort.
REGISTRATION
The MetaKit Library is not free, you must register for US$ 25 if you use
this code in your own software after an eva