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Heron-Centric: Ruminations of a Language Designer
New Cat Release and Documentation
by Christopher Diggins
June 17, 2006
I have updated the documentation for Cat and released a new version of the interpreter.


The latest Cat documentation, interpreter, and source code, is now available at

One of the fun new features is the ability to output an XML representation of any defined command. I use it with an XSLT style sheet to produce pretty HTML output such as the example at

Apart from that there isn't much else to say. The documentation is better, the interpreter has been tested more extensively, the code has been improved somewhat, and there are a few more built-in commands. Oh, and there is a new mailing list I just set up if anyone is interested, at

Have fun, and let me know what crazy things you can imagine doing with this kind of language (hint: try imagining all of the domain specific languages you could build).

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About the Blogger

Christopher Diggins is a software developer and freelance writer. Christopher loves programming, but is eternally frustrated by the shortcomings of modern programming languages. As would any reasonable person in his shoes, he decided to quit his day job to write his own ( ). Christopher is the co-author of the C++ Cookbook from O'Reilly. Christopher can be reached through his home page at

This weblog entry is Copyright © 2006 Christopher Diggins. All rights reserved.

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