A few feral cats in an ALGOL trenchcoat.
Summary
POP-2 is a compact, ALGOL-like stack-based language with explicit operand stacks and a minimal interpreter. The article covers syntax, stack-based evaluation, I/O, arrays, and examples; it also highlights its open-source nature with links to the source and repository. It serves as a retro exploration of language design and a reference for a small, embeddable compiler.