Subscript and Superscript Converter

Convert text to subscript or superscript using keyboard shortcuts

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Subscript and Superscript Converter
// @namespace    https://tampermonkey.net/
// @license      MIT
// @version      1.0
// @author       Rekt
// @description  Convert text to subscript or superscript using keyboard shortcuts
// @match        *://*/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const superscriptMap = {
        '0': '⁰', '1': '¹', '2': '²', '3': '³', '4': '⁴', '5': '⁵', '6': '⁶',
        '7': '⁷', '8': '⁸', '9': '⁹', 'a': 'ᵃ', 'b': 'ᵇ', 'c': 'ᶜ', 'd': 'ᵈ',
        'e': 'ᵉ', 'f': 'ᶠ', 'g': 'ᵍ', 'h': 'ʰ', 'i': 'ⁱ', 'j': 'ʲ', 'k': 'ᵏ',
        'l': 'ˡ', 'm': 'ᵐ', 'n': 'ⁿ', 'o': 'ᵒ', 'p': 'ᵖ', 'q': '𐞥', 'r': 'ʳ', 's': 'ˢ',
        't': 'ᵗ', 'u': 'ᵘ', 'v': 'ᵛ', 'w': 'ʷ', 'x': 'ˣ', 'y': 'ʸ', 'z': 'ᶻ',
        '+': '⁺', '-': '⁻', '=': '⁼', '(': '⁽', ')': '⁾'
    };

    const subscriptMap = {
        '0': '₀', '1': '₁', '2': '₂', '3': '₃', '4': '₄', '5': '₅', '6': '₆',
        '7': '₇', '8': '₈', '9': '₉', 'a': 'ₐ', 'e': 'ₑ', 'h': 'ₕ', 'i': 'ᵢ', 'j': 'ⱼ',
        'k': 'ₖ', 'l': 'ₗ', 'm': 'ₘ', 'n': 'ₙ', 'o': 'ₒ', 'p': 'ₚ', 'r': 'ᵣ',
        's': 'ₛ', 't': 'ₜ', 'u': 'ᵤ', 'v': 'ᵥ', 'x': 'ₓ', 'y': 'ᵧ', '+': '₊',
        '-': '₋', '=': '₌', '(': '₍', ')': '₎'
    };

    function convertText(input, map) {
        return input.split('').map(char => map[char] || char).join('');
    }

    window.addEventListener('keydown', event => {
        if (event.ctrlKey && event.altKey) {
            event.preventDefault();
            let convertedText = '';

            if (event.key === ']') {
                const input = prompt('Enter text to convert to subscript:');
                convertedText = convertText(input, subscriptMap);
            } else if (event.key === ']' && event.shiftKey) {
                const input = prompt('Enter text to convert to superscript:');
                convertedText = convertText(input, superscriptMap);
            }

            if (convertedText) {
                navigator.clipboard.writeText(convertedText).then(() => {
                    document.execCommand('insertText', false, convertedText);
                });
            }
        }
    });
})();