Iowa

Iowa is a simple, high‑level interpreted language designed for readability. Inspired by modern scripting languages, Iowa offers a clean syntax, dynamic typing

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Table of Contents

1. Features
2. Prerequisites
3. Building from Source
4. Running Tests
5. Usage
6. Examples

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Features

• Interpreted: No compilation step—run scripts directly.
• High-Level Syntax: Clean, human-readable code.
• Dynamic Typing
• Platform: Anything Unix

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Prerequisites

Before you begin, ensure you have the following installed on your system:

• clang
• GNU Make
• Git

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Building from Source

Use make to compile the interpreter:

make

The executable will be placed in the bin folder.

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Running Tests

Build and run tests

make run 
# or
./run.sh

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Usage

Invoke the interpreter with a script path:

./bin/Iowa path/to/script.ia

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Run it:

./bin/iowa hello.ia

Examples

Example 1

set number = 0;

console_out(number);

loop (number <= 5){
    console_out(number);
    set number = number + 1;
}

Output:

0
0
1
2
3
4
5
6

Example 2

set number = 3;

console_out (number == 5);

if (number == 5) {
    console_out ("number is 5");
}
else {
    console_out ("number is not 5");
}

Output:

false
number is not 5

Example 3

console_out ((((2 + (5 * (3 - 1))) + 1) + (4 - 3) + 3) + (3 + 3) + (4 / 2) / (9 * 2));
console_out (false && (false || true) || (false && false));

Output:

23
false

Example 4

set x = 5;
set y = 2;

console_out(x*y);

{
    set x = 2;
    console_out(x*y);
    
    if (x*y == 4){
        console_out("Hello World!");
    }
    else {
        console_out("Goodbye World!");
    }
}

Output:

10
4
Hello World!