[stack] Thread, a vaguely related query language (and hello!)

Hi. I came across this group while poking around the web looking for
discussions of language-design issues. I work on www.needlebase.com, a
database system of sorts that includes a path-oriented query language called
Thread.

Thread isn't strictly concatenative in the pure sense, as its built-in
operations do take parameters, but it uses a working set similar to the way
concatenative languages use the stack, and many functions (counting, math,
etc.) operate in a postfix, parameterless way. So, for example, getting the
difference between launch mass and empty mass for a bunch of satellites
would look like this:

Satellite|(..Launch Mass,Empty Mass._-)

If you're interested, there's an introduction to this language at
https://pub.needlebase.com/docs/ThreadManual.html.

glenn


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