Control Flow

Kronos provides natural language keywords for control flow statements.

Conditional Statements

If Statements

set age to 18

if age is greater than or equal 18:
    print "You are an adult"

If-Else

set temperature to 25

if temperature is greater than 20:
    print "It's warm"
else:
    print "It's cold"

If-Else-If

set score to 85

if score is greater than 90:
    print "Grade: A"
else if score is greater than 80:
    print "Grade: B"
else if score is greater than 70:
    print "Grade: C"
else:
    print "Grade: D or F"

Loops

For Loops

Iterate over a range:

for i in range 1 to 10:
    print i

Iterate over a list:

set fruits to list "apple", "banana", "cherry"

for fruit in fruits:
    print fruit

While Loops

let counter to 5

while counter is greater than 0:
    print counter
    let counter to counter minus 1

Break and Continue

Use break to exit a loop early:

for i in range 1 to 10:
    if i is equal 5:
        break
    print i
# Prints: 1, 2, 3, 4

Use continue to skip to the next iteration:

for i in range 1 to 10:
    if i mod 2 is equal 0:
        continue
    print i
# Prints: 1, 3, 5, 7, 9

Note: break and continue can only be used inside loops.

Nested Control Flow

You can nest conditionals and loops:

for i in range 1 to 5:
    if i mod 2 is equal 0:
        print f"{i} is even"
    else:
        print f"{i} is odd"

Examples

Finding Maximum Value

set numbers to list 3, 7, 2, 9, 1, 5
let max to numbers at 0

for num in numbers:
    if num is greater than max:
        let max to num

print f"Maximum: {max}"

FizzBuzz

for i in range 1 to 20:
    if i mod 15 is equal 0:
        print "FizzBuzz"
    else if i mod 3 is equal 0:
        print "Fizz"
    else if i mod 5 is equal 0:
        print "Buzz"
    else:
        print i

Control Flow

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