computer science: Program Transformation

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Discovered several languages. TXL, Colm, and the concept of program transformation.

There's the concept of Program transformation. Basically, it takes a input source code and transforms by some spec into another form. Similar to the concept of compiler, but more at textual level, i think. e.g. Source-to-source compiler.

There seems to be quite a few such languages. Here's a big list:

TXL (programming language) (home at seems to be a popular transformation language. And a new supposedly improved one is Colm, at: On the colm site, it has a Ph D thesis in PDF that gives a nice overview of such systems.

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