Lambdatalk

Aliases: lambda talk, lambdaway

Provenance: commit 85f163a019 · authored 2026-02-26T06:26:00+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.

{def acc
 {lambda {:a :n}
  {+ {A.toS {A.addlast! :n :a}}}}}
\-> acc

1) using a global:

{def A {A.new 1}}
\-> A
{acc {A} 5}
\-> 6
{acc {A} 2.3}
\-> 8.3

2) inside a local context:

{let { {:a {A.new 1}}
     } {br}{acc :a 5}
       {br}{acc :a 2.3}
} \->
6
8.3