[JayOtter]

The idea of supplying a spec to transform arbitrary data is interesting to me. I did one in JavaScript called Reshaper[1], and then hooked it up to a library wrapper called Smolder[2].

The result was a sort of system whereby data going into a function would be automatically 'reshaped'. It worked well as a proof-of-concept, but obviously was too fragile for most uses (though it's used in the automatic graphs in Kajero[3]). The difference here seems to be that the spec defines the actual transformations, rather than just the desired final structure.

[1] https://github.com/joelotter/reshaper [2] https://github.com/joelotter/smolder [3] https://github.com/joelotter/kajero

[marktangotango]

Are you familiar with Xml and xsl/xslt? They took this concept a long, long way.

[ygra]

And DSSSL before that. But I guess XML is just not hip enough anymore.

Actually, having done some work on XSLT these days again I was joking to a colleague at work that one day someone will surely think what a great idea it would be to create a programming language in JSON to transform JSON to other JSON. And lo and behold, a few days later I stumble over this.

I have to admit, XSLT looks far nicer to me, but that might be familiarity and a proper specification to read to understand things instead of just a bunch of examples.