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Tool Data Language (TDL)


TDL is a half-baked proposal by me to create a TOML-style data language roughly based on TCL but with heavy influence from Racket. It's a bit like Dumbdown but for data. The idea was to create something that is easy to write a parser for, for folks stuck on locked-down corporate machines with access to only an ancient IDE. I placed an emphasis on readability and avoiding braces. It's probably dumb, given that S-expressions are a thing. I haven't actually tried parsing any of this.


https://github.com/akbarnes/tdl

https://github.com/treenotation/dumbdown

A fun HN thread pointing out that Dumbdown is dumb

Rosetta code examples for writing an S-expression parser in most common languages


To create a key-value pairs


set b 32.5
set c false

Nothing special is needed for strings, though they need to be quoted

if they look like numbers or booleans


> set g hello\nthere


To create a list


> set amounts list 10 33 18


Create a hash


> set h hash a 2 b 3 c 33.5


TCL $ evaluation is used to create nested data structures


> set h2 hash a $amounts b $b


Intermediate variables can be cleared


> clear b amounts

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