BASIC as a domain specific language

A few posts back I was bemoaning the end of the simplicity of the BASICs I used thirty years ago – then I could just write a few lines to visually solve an equation and so on.

Cartridge with BASIC computing language for At...
Cartridge with BASIC computing language for Atari 8 bit computers. Model CXL4002. Photo by the uploader. (Photo credit: Wikipedia)

That got me thinking about how to recreate that as domain specific language (DSL) – writing some other code that interprets the graphics primitives to put dots and lines on the screen. That pit seems quite simple. But, of course, to be able to plot a function you need to implement the maths code too – including some relatively complex stuff like SIN, COS, TAN etc.

And, presumably, you would also want loops to advance your parameters along a bit as well – pretty soon you would end up implementing a fairly substantial BASIC interpreter.

Still a project worth thinking about in my view – but it seems someone, not surprisingly, has already done this – treating BASIC as a DSL using Scala.

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