Hoare's CSP is exactly this. It's not a programming language per se, but I know of several DSL's that were built using CSP syntax. https://en.wikipedia.org/wiki

Hoare's CSP is exactly this. It's not a programming language per se, but I know of several DSL's that were built using CSP syntax. https://en.wikipedia.org/wiki/Communicating_sequential_processes https://en.wikipedia.org/wiki/Communicating_sequential_proce...