break

In programming languages like X3, the "break" keyword is used within loops (such as "for" and "while" loops) to prematurely exit the loop when a certain condition is met. Here's how you would use the "break" keyword in your X3 language:

Basic Usage with "for" Loop:

# Using 'break' keyword in 'for' loop
for var i = 1 to 5 then
    if i == 3 then
        break  # Exit the loop when i is 3
    end
    show(i)
end

Explanation:

• In this example, the "for" loop iterates over the values from 1 to 5.

• When the loop variable i is equal to 3, the "break" keyword is encountered, causing the loop to terminate immediately.

• As a result, the loop stops executing, and the subsequent iterations are skipped.

Basic Usage with "while" Loop:

var i = 0

# Using 'break' keyword in 'while' loop
while i < 5 then
    i = i + 1
    if i == 3 then
        break  # Exit the loop when i is 3
    end
    show(i)
end

Explanation:

• In this example, the "while" loop continues to execute as long as the condition i < 5 is true.

• Within each iteration, the loop variable i is incremented by 1.

• When i becomes equal to 3, the "break" keyword is encountered, causing the loop to terminate immediately.

• As a result, the loop stops executing, and the subsequent iterations are skipped.

Usage in Nested Loops:

# Using 'break' keyword in nested loops
for var i = 1 to 3 then
    for var j = 1 to 3 then
        if j == 2 then
            break  # Exit the inner loop when j is 2
        end
        show("({i}, {j})")
    end
end

Explanation:

• In this example, a nested "for" loop structure is used.

• When the inner loop variable j is equal to 2, the "break" keyword is encountered, causing the inner loop to terminate immediately.

• As a result, the inner loop stops executing, and the outer loop continues with its next iteration.

By incorporating the "break" keyword in your X3 language, you provide users with a way to prematurely exit loop constructs based on specific conditions. This capability allows for more flexible control flow within loops and enhances the efficiency of algorithmic implementations in X3 programs.