elif

X3 programming language, the "elif" keyword is a shorthand for "else if". It's used in conjunction with an "if" statement to specify a new condition to test if the previous conditions in the "if" statement are false. Here's how you would use the "elif" keyword in your X3 language:

Basic Usage:

var x = 10

# Using 'if' with 'elif' to check multiple conditions
if x > 10 then
    show("x is greater than 10.")
elif x == 10 then
    show("x is equal to 10.")
elif x < 10 then
    show("x is less than 10.")
end

Explanation:

• In this example, the "if" statement checks the condition x > 10. If it's true, the corresponding block of code executes. If not, it moves on to the next condition.

• If x > 10 is false, the "elif" statement checks if x == 10. If it's true, the corresponding block of code executes. If not, it moves on to the next "elif".

• The process continues until either a condition evaluates to true or the "else" block is reached if provided.

Multiple Elif Clauses:

var x = 5

# Using multiple 'elif' clauses
if x > 5 then
    show("x is greater than 5.")
elif x == 5 then
    show("x is equal to 5.")
elif x < 5 then
    show("x is less than 5.")
end

Explanation:

• Here, each "elif" clause is evaluated sequentially until one of them is true or until the "else" block is reached if provided.

Else Clause:

var x = 3

# Using 'if' with 'elif' and 'else'
if x > 5 then
    print("x is greater than 5.")
elif x == 5 then
    show("x is equal to 5.")
else
    show("x is less than 5.")
end

Explanation:

• If none of the conditions in the "if" and "elif" clauses evaluate to true, the code inside the "else" block will be executed.

Nesting Elif Statements:

var x = 10
var y = 5

# Nesting 'elif' statements
if x > 5 then
    if y > 2 then
        show("Both x and y are greater than their respective thresholds.")
    end
elif x < 5 then
    show("x is less than 5.")
end

Explanation:

• In this example, an "elif" statement is nested within another "if" statement. The nested "elif" will only be evaluated if the outer "if" condition is false.

By incorporating the "elif" keyword in your X3 language, you provide users with the ability to test multiple conditions sequentially in their programs, enabling more complex decision-making logic.