Edit: hex

_hex_ is a tiny, minimalist, slightly-esoteric programming language implemented in C that can be used to learn about concatenative programming and create shell scripts. Its syntax borrows heavily from the [[min]] programming language, and it is stack-based, but it only supports: - 32bit integers written _only_ in hexadecimal format - strings - quotations (lists) - symbols It comes with 0x40 (64) predefined native symbols to perform arithmetic operations, bitwise operations, comparisons, boolean logic, string and list manipulation, stack manipulation, I/O, file I/O and shell command execution. It also lets you define your own symbols, but they will always be global (there is no lexical scoping or similar). Despite its quirks, _hex_ aims to bring more people into the world of concatenative programming. The language [[https://hex.2c.fyi|web site]] includes a short tutorial, a simple specification of the language, and even a WASM-powered playground with an actual hex REPL to play with.

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