Control Flow & Matching

SP supports standard branching constructs, loops, and modern pattern matching.

Conditional If-Else

1if (score >= 90) {
2    println("Grade: A");
3} else if (score >= 75) {
4    println("Grade: B");
5} else {
6    println("Grade: C");
7}

Pattern Matching (`match`)

The match construct evaluates an expression against multiple branch patterns. It is an expression that yields a value:

1let statusCode = 200;
2
3let message = match (statusCode) {
4    200 => "OK - Request successful",
5    404 => "Not Found",
6    500 => "Internal Server Error",
7    _   => "Unknown status"
8};
9
10println(message);

Loops (`for`, `for-in`, `while`)

1// 1. Classic for loop
2for (int i = 0; i < 5; i = i + 1) {
3    println("Index: ${i}");
4}
5
6// 2. Collection for-in loop
7let fruits = ["Apple", "Orange", "Banana"];
8for (string f in fruits) {
9    println("Fruit: ${f}");
10}
11
12// 3. While loop
13var n = 3;
14while (n > 0) {
15    n = n - 1;
16}

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