DSSL2

Aliases: Data Structures Student Language, DSSL

Provenance: commit 12afe72957 · authored 2026-02-27T19:17:46+01:00 · agent claude-code · model claude-sonnet-4-6

1 source · not in taxonomy (canonical name didn't match any upstream)

Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.

# Fibonacci sequence in DSSL2
# A recursively defined function example

def fib(n: int?) -> int?:
    if n < 2: n
    else: fib(n - 1) + fib(n - 2)

def main():
    for i in range(10):
        println("%d: %d", i, fib(i))

main()