An esoteric programming language based on functional programming, leaveraging ideas like pattern matching and pairs.
The match interpreter is just a Rust crate, so download the Rust compiler. Then you can clone this repo and do cargo run to execute it.
cargo run -- <filename>
The standalone executable can be found at target/debug/match-lang after running cargo build or cargo run.
A match program is made up of functions. All functions take one argument, and return one value.
Functions in match is defined by their name followed by a colon and then by a series of pattern branches.
Each branch consists of a pattern, an ->, an expression to evaluate, and a ;. The whole function is terminated by another ;.
For example, here's a function that adds one to the argument given to it.
add_one:
number -> number + 1;;
The number variable in the pattern binds to whatever is passed into the function and returns the value plus one.
Here's a truth-machine:
truth:
0 -> println(0);
1 -> print(1) then truth(1);;
The then operator throws away the result of the left hand side, and returns the right hand side.
As you can see, this function is recursive. This also showcases the print and println functions.