elk/ROADMAP

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This directory holds the source code and documentation for the latest
release of Elk, the Extension Language Kit. See the file README for
an overview of Elk.
Here is a brief roadmap for the subdirectories and files included in
the distribution.
elk-3.0 --+-- README Explains the purpose and release status of Elk
|
+-- CHANGES Lists the changes between this and earlier releases
| of Elk
|
+-- MIGRATE Explains how C/C++ code (applications or extensions)
| written for older versions of Elk may have to be
| modified to make it work with this version
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+-- INSTALL Instructions for configuring, compiling, and
| installing Elk; a brief description of the files that
| get installed in the process; and a description of
| the structure of the Makefiles and the purpose of
| Makefile.local and `build' in each source directory
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+-- MACHINES Additional, platform-specific advice for installing
| and using Elk, such as compiler bugs, unsupported
| features, problems with older OS versions and other
| pitfalls
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+-- BUGS Information about known problems with this release
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+-- TODO Ideas, improvements and projects for future releases
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+-- COPYRIGHT The copyright status of the distribution
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+-- CONTRIBUTORS
| A list of people who have contributed significantly
| to Elk; acknowledgments and credits
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+-- PATCHLEVEL The current patchlevel
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+-- config/ Holds the configuration files with machine- and
| site-specific information required for building
| Elk. See INSTALL for details.
|
+-- include/ The include files to be #included by applications
| that use Elk as their extension language, and by
| extensions to Elk. Including scheme.h from this
| directory causes all the other .h files to be
| included in the right order. The include files may
| or may not use ANSI/ISO-C prototypes, depending on
| the config file you have chosen.
|
+-- scripts/ Shell scripts to link the Scheme interpreter with
| extensions (useful on platforms that to not support
| dynamic loading of objects), and to create
| dynamically loadable objects from .o files. See
| INSTALL and scripts/README for details.
|
+-- src/ The C source files of the Scheme interpreter
|
+-- scm/ Scheme files that are loaded during runtime. These
| are copied to a destination directory specified in
| config/site when Elk is installed.
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+-- lib --, This directory tree holds the C source for various
| | Elk extensions that can be loaded into the Scheme
| | interpreter or linked with an application
| |
| +-- xlib/ The C source files of the X11 Xlib extension
| |
| +-- xt/ The C source files of the Xt (X11 Toolkit
| | Intrinsics) extension
| |
| +-- xaw/ The Scheme interfaces to the X11 Athena widgets.
| | There is one .d file for each widget class.
| | Each of these is compiled into a C source file
| | when running `make' and then compiled into a
| | dynamically loadable object.
| |
| +-- xm/ The .d files for the Motif widgets
| |
| +-- unix/ The C source files of the UNIX extension
| |
| `-- misc/ The C source files of the record extension, the
| bitstring extension, the regular expression
| extension, and various other dynamically
| loadable Elk extensions
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+-- doc/ The directory tree holding the documentation for
| Elk as troff input files and pre-generated
| PostScript files. See doc/README for a roadmap
| of the `doc' tree.
|
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+-- examples --, A collection of demonstration programs for Elk
| | and the various extensions (mostly in Scheme)
| |
| +-- scheme Basic Scheme demos (collected from USENET
| | and other sources)
| |
| +-- xlib Programs demonstrating the Xlib, Athena,
| +-- xaw and Motif extensions
| +-- xm
| |
| +-- unix Example programs for the UNIX extension
| |
| +-- regexp A demonstration of the regexp extension
| |
| `-- CC A few simple C++ programs demonstrating
| use of Elk with C++ applications (see
| README in this directory)
|
`-- util/ Various utilities, some of which may aid in preparing
a config file for an as yet unsupported platform.