Custom Expressions

This is a lesson on how to make a custom expression. We'll be making an expression for [the] server's name

Requirements:
skript-reflect or skript-mirror
skript

Expression:

[the] server's name

First, you want to use the custom expression event.

expression [the] server's name:

If you want to use multiple patterns, use the patterns section.

expression:
    patterns:
        [the] server's name
        name of [the] server

If you want to use the expression you'll need to use the get expression.

expression:
    patterns:
        [the] server's name
        name of [the] server
    get:
        return "name"

We can use a variable to store this value and use change value to get the value that you want to change to.

expression:
    patterns:
        [the] server's name
        name of [the] server
    get:
        return {_name}
    set:
        set {_name} to change value

We can also specify a return type which will make it easier to debug if the incorrect type is given.

expression:
    patterns:
        [the] server's name
        name of [the] server
    return type: string 
    get:
        return {_name}
    set:
        set {_name} to change value

We can additionally add a parse section which will execute once it has been parsed. You may use the continue statement if it was successful or the exit statement if there is an error.

expression:
    patterns:
        [the] server's name
        name of [the] server
    return type: string 
    parse:
        # optional
    get:
        return {_name}
    set:
        set {_name} to change value

We can also use expressions inside of our expression. We'll create a %number% multiplied by %number% expression. We use the expression expression-%number% to get the value of an expression. In this example we use expression-1 and expression-2 to get the first and second number.

expression %number% multiplied by %number%:
    return type: number
    get:
        return expression-1 * expression-2

Add a comment if you have any questions.