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- Extended Tcl (TclX) 7.5a
- ========================
-
- TclX 7.5 Alpha 2 Release
- ========================
-
- This is the second TclX alpha release that is compatible with the Tcl 7.5 /
- Tk 4.1 alpha line. Its is known to work with the Tcl/Tk alpha 2 releases.
- This only consists of a few bug fixes, but they where annoying people.
-
- This release contains mainly changes for compatibility with Tcl 7.5. Shared
- libraries are not currently built, so its not dynamically loadable out of the
- box. Eventually, this will be supported.
-
- No support is currently available for MS Windows or the MacIntosh. We
- are interested in supporting these platforms, but don't have the time
- or expertise to do it in the near future. If anyone is interested in
- working with us on these port, we would like to do it in the same manner
- as Tcl and Tk. Please contact us if you would like to help. We are
- interested in having two independent (from each other), experienced developers
- for each platform. We will handle merge changes into the source tree and
- making changes available. Please contact us at tcl-project@neosoft.com
- if you think you can help.
-
-
-
- INTRODUCTION
- ============
-
- Extended Tcl (TclX), is a set of extensions to Tcl 7.5, the Tool Command
- Language invented by Dr. John Ousterhout of the University of California at
- Berkeley. Tcl is a powerful, yet simple embeddable programming language.
- Extended Tcl is oriented towards Unix system programming tasks and large
- application development. Many additional interfaces to the Unix operating
- system are provided. It is upwardly compatible with Tcl 7.5. You take the
- Extended Tcl package, add it to Tcl 7.5, and from that you get Extended Tcl.
- (Berkeley Tcl is not included in this distribution, obtain it from
- ftp.cs.berkeley.edu).
-
- Support is also included for building a Tk 4.0 wish shell (wishx)
- with the Extended Tcl command set.
-
- While this TclX distribution is tested with Tcl 7.5 and Tk 4.0, it will
- probably work with new versions of Tcl & Tk with little or no changes.
-
- Extended Tcl was designed and implemented by Karl Lehenbauer
- (karl@NeoSoft.com) and Mark Diekhans (markd@Grizzly.com), with help
- in the early stages from Peter da Silva (peter@NeoSoft.com).
-
- As with Berkeley Tcl, all of Extended Tcl is freely
- redistributable, including for commercial use and resale.
-
- Please read the file INSTALL carefully before building and
- installing Extended Tcl.
-
- NEW FEATURES IN TCLX 7.5a
- =========================
-
- o Compatibility with Tcl 7.5 / Tk 4.1 alpha.
-
- FEATURES ADDED BY EXTENDED TCL
- ==============================
-
- Here is a summary of the features added by Extended Tcl. For
- more details on the commands and functionality provided by Extended
- Tcl, see the manual page man/TclX.man.
-
- o A shell, which provides an environment for developing and
- executing Tcl programs.
-
- o Advanced Tcl code library facility that is oriented towards building
- large applications. It is compatible with standard Tcl auto-loading.
-
- o General purpose commands which define new programming
- constructs, debugging and profiling facilities.
-
- o Unix access commands provide access to many Unix system calls,
- including process management.
-
- o File I/O commands provide added facilities for accessing and
- manipulating open files.
-
- o File scanning facility that provides awk-like functionality.
-
- o Extended list manipulation commands.
-
- o Keyed lists, a type of list that provides functionality
- similar to C structures.
-
- o Extended string and character manipulation commands.
-
- o Time and date manipulation and conversion commands.
-
- o Online help on Tcl, TclX and Tk commands.
-
- o A simple interface for accessing and building TCP/IP based servers.
-
- o X/PG based internationalization commands.
-
- ON-LINE HELP
- ============
-
- There is a help system included with Extended Tcl. It contains
- some documentation on every command in Berkeley Tcl, Extended Tcl
- and Tk. You can invoke it interactively from within Extended Tcl by
- typing "help".
-
- Once you bring Tcl up and have gotten it to pass all the tests,
- try typing "help help" to learn how to use help.
-
- There is also a Tk based help program "tclhelp".
-
- MANUAL PAGES
- ============
-
- Man pages in nroff/troff format are provided for all of Tcl and
- the extensions in the directory tclX7.5a/man. Start with the
- TclX.man manual.
-
- EXTENDED TCL VERSION NAMING
- ===========================
-
- Extended Tcl takes its version number from the corresponding
- version of Berkeley (Ousterhout) Tcl upon which it is based, with
- the addition of a trailing letter in case there are multiple
- releases of Extended Tcl within a single release of Berkeley Tcl.
- This release is TclX 7.5a.
-
- INTERFACING TCL AND C++
- =======================
-
- C++ programmers can include the file "tcl++.h" to define C++ classes
- that can be used to access a Tcl interpreter. This is based on Tcl
- C++ classes originally developed by Parag Patel. The files
-
- src/tclXAppInit.c
- and
- tksrc/tkXAppInit.c
-
- will compile under both C and C++.
-
- PACKAGE LIBRARIES
- =================
-
- Package Libraries are a Tcl source code management tool included
- in this release. Package libraries allow you to group Tcl
- procedures into logical bundles and create single files, libraries,
- that contain multiple packages. The package code provides a
- low-overhead means of automatically demand-loading a package on the
- first attempt to execute one of the procedures defined within it.
- As such, package libraries provide a mechanism to accommodate the
- creation of Tcl applications and libraries of a substantial size.
- The TclX library mechanism is a super-set of the mechanism provided
- with standard Tcl.
-
- LINKING TCL APPLICATIONS
- ========================
-
- To build a TclX based application containing C code, start with
- either:
-
- src/tclXAppInit.c for just TclX
- or
- src/tkXAppInit.c for TclX & Tk
-
- and add your application initialization. These files contain an application
- specific initialization function as well as "main". There are comments in the
- code to guide you. For example:
-
- cc tclXAppInit.o mystuff.a libtclx.a libtcl.a ${TCLXLIBS} -o myapp
-
- cc tkXAppInit.o mystuff.a libtkx.a libtk.a libtclx.a libtcl.a ${TKXLIBS} \
- -o myapp
-
- The *AppInit.c files are also installed in the src directory under the
- TclX/TkX master directories.
-
- The files tclxlibs.mk and tkxlibs.mk define system libraries that the TclX
- configure script thinks you should use for linking programs. These file are
- in a format that can be included from a make file.
-
- IMPORTANT NOTE: libtclx.a must be specified on the link command line
- before libtcl.a. If the order is reversed, incorrect command line
- parsing code will be used.
-
- DYNAMIC LOADING OF TCLX
- ========================
-
- Instead of linking a custom application based on the TclX shell, it
- is possible to dynamic load it into an application based on another
- shell.
-
- SUPPORT FOR EXTENDED TCL
- ========================
-
- We are committed to providing continuing support for Extended
- Tcl. Please send questions, bug reports, and bug fixes to:
-
- tcl-project@NeoSoft.com
-
- WHERE TO GET IT
- ===============
-
- Tcl & Tk is available via anonymous ftp from:
-
- ftp.cs.berkeley.edu:/ucb/tcl/[tcl7.5.tar.Z tk4.1.tar.Z]
- or
- ftp.neosoft.com:/pub/tcl/distrib/[tcl7.5.tar.gz tk4.1.tar.gz]
- or
- ftp.uu.net:languages/tcl/[tcl7.5.tar.Z tk4.1.tar.Z]
-
- Extended Tcl 7.5a can be downloaded by anonymous FTP from:
-
- ftp.neosoft.com:/pub/tcl/distrib/tclX7.5a.tar.gz
- or
- ftp.aud.alcatel.com:tcl/extensions/tclX7.5a.tar.gz
-
- A contributed sources archive resides on ftp.aud.alcatel.com and
- is mirrored on ftp.ibp.fr for our friends in Europe. An Frequently
- Asked Questions (FAQ) document exists in this archive.
-
- Remember to mail Extended Tcl problems and questions to
- tcl-project@NeoSoft.com not Dr. John Ousterhout.
-
- THANKS
- ======
-
- A big thanks to all of the Extended Tcl users from all over the world
- who have helped us debug problems and given us valuable suggestions.
- A special thanks to John Ousterhout for Tcl, Tk and all the support he
- has given us.
-
-
- NEOSOFT TCL CONSULTING
- ======================
-
- NeoSoft, co-developers of Extended Tcl, provides commercial Tcl
- releases, support, training and consulting. NeoSoft can be reached
- by sending electronic mail to info@NeoSoft.com or by phoning
- +1 713 968-5800.
-