Gzz is an implementation of ZZstructure developed by a research group led by Tuomas Lukka at the University of Jyväskylä.
ZZstructure, an invention of Ted Nelson, is a new type of data structure. For mathematicians, the key words would be discrete, multidimensional, locally euclidean, with global directions (coordinate axes). Nonmathematicians can find an explanation in the FAQ at the project website, but as a short and very inadequate summary, it is a spreadsheet on steroids. Or a database on acid. Or a filesystem on ... whatever. This project used to be called GZigZag, but is now called Gzz.
License: GNU LGPL or Xanadu Public License, at your choice
This project has the following developers:
New HTML Parser: The long-awaited libxml2 based HTML parser code is live. It needs further work but already handles most markup better than the original parser.
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If you're a C programmer with some spare time, take a look at the mod_virgule project page and help us with one of the tasks on the ToDo list!