Getting Started

Build from source

ENG is a Rust project. With Rust installed, build it with:

cargo build --release

The executable is named eng.

Run a program during development:

cargo run -- run examples/01_hello.eng

Your first program

Create hello.eng:

Let name be "Awi".
Print "Hello, " plus name.

Run it:

eng run hello.eng

Output:

Hello, Awi.

A small program

Let score be 75.

If score is greater than or equal to 60, then
    Print "Pass".
Otherwise
    Print "Fail".
End.

The comma before then is required by the If grammar.

Important syntax rules

1. Statements normally end in ..
2. Blocks end in End..
3. Keywords are case-insensitive.
4. Strings use double quotes.
5. Comments begin with # and continue to the end of the line.
6. Operators use English phrases such as plus, multiplied by, and is greater than.

Running the examples

The repository includes example programs under examples/. They cover arithmetic, strings, booleans, control flow, functions, lists, modules, and the optional UI.