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The Tcl language and Tk graphical toolkit are simple and powerful building blocks for custom applications. The Tcl/Tk combination is increasingly popular because it lets you produce sophisticated graphical interfaces with a few easy commands, develop and change scripts quickly, and conveniently tie together existing utilities or programming libraries.One of the attractive features of Tcl/Tk is the wide variety of commands, many offering a wealth of options. Most of the things you'd like to do have been anticipated by the language's creator, John Ousterhout, or one of the developers of Tcl/Tk's many powerful extensions. Thus, you'll find that a command or option probably exists to provide just what you need.And that's why it's valuable to have a quick reference that briefly describes every command and option in the core Tcl/Tk distribution as well as the most popular extensions. Keep this book on your desk as you write scripts, and you'll be able to find almost instantly the particular option you need.Most chapters consist of alphabetical listings. Since Tk and mega-widget packages break down commands by widget, the chapters on these topics are organized by widget along with a section of core commands where appropriate. Contents include: Core Tcl and Tk commands and Tk widgets C interface (prototypes) Expect [incr Tcl] and [incr Tk] Tix TclX BLT Oratcl, SybTcl, and Tclodbc
A handy reference guide includes easy-to-understand summaries of the basic Tcl language elements, to the Tcl and Tk commands, and to the Tk widgets, in a quick access format. Original. (Advanced).
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Python attracts a wide variety of developers, many of whom use it to connect critical programming tasks. Python can serve as the glue between operations, as well as a powerful and complete cross-platform application development language. Python is also abject-oriented and has powerful text manipulation capabilities, which make it particularly attractive to XML developers. It is ideally suited as a language for the manipulation of XML. Python and XML provides a solid foundation for developers using XML with Python. Loaded with practical examples, this book highlights common application tasks so that you can learn by doing. It starts with a basic introduction to XML, and quickly progresses to more advanced topics, such as transforming XML with XSLT, querying XML with XPath, and working with XML-based languages and validation. It also explores such subjects as Python and SOAP, Python and distributed web services, and using Python and XML to integrate distributed systems. While covering the many tools involved in XML processing with Python, the book discusses effective practical applications and often highlights cross-platform issues, along with tasks relevant to enterprise computing. There is ample coverage of XML flow analysis and details on ways to successfully transport XML through a network. If you are using Python as an application language or as an administrative or middleware scripting language, you are sure to benefit from this book. And if you are a Python programmer and want to incorporate XML into your skill set, this is the book for you. It covers cutting edge topics such as XSLT, XPath, DOM/SAX, and validation.
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