owowify website

owowify website evewywhewe! >w<

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

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

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name        owowify website
// @description owowify website evewywhewe! >w<
// @author      owowed
// @version     0.0.3
// @namespace   fun.owowed.moe
// @license     GPL-3.0-or-later
// @match       *://*/*
// @grant       none
// @run-at      document-end
// @copyright   All rights reserved. Licensed under GPL-3.0-or-later. View license at https://spdx.org/licenses/GPL-3.0-or-later.html
// ==/UserScript==

/**
 * wincesed undew GNYU! GPL vewsion 3.0 -w-
 */

const blocklistTags = "style, script, svg, noscript, iframe, object, code, pre, input";

!function () {
    const updateSubtreeOwowification = () => {
        setTimeout(() => owowifySubtree(document.body), 700);
    };
    const windowHrefCheck = stateCheck(
        () => window.location.href,
        () => updateSubtreeOwowification()
    );
    const documentTitleCheck = stateCheck(
        () => owowify(document.title)
    );

    const observer = new MutationObserver((records) => {
        if (windowHrefCheck()) return;

        documentTitleCheck();

        for (const record of records) {
            for (const newNode of record.addedNodes) {
                owowifySubtree(newNode);
            }
        }
    });

    observer.observe(document.body, {
        childList: true,
        subtree: true,
        /* don't use characterData, it'll kill your page */
    });

    owowifySubtree(document.body);
    document.title = owowify(document.title);

    function stateCheck(newValueGetter, callback) {
        let value = newValueGetter;

        return () => {
            const newValue = newValueGetter();
            if (value != newValue) {
                value = newValue;
                callback?.();
                return true;
            }
        };
    }
}();

/** @param {Element} element */
function owowifySubtree(element) {
    if (element.nodeType != Node.ELEMENT_NODE) return;

    const currentElementValid =
        isElementValidOwowify(element) &&
        isElementValidOwowify(element.parentElement);

    if (!currentElementValid) {
        element.noOwowify = true;
    }

    if (element instanceof HTMLInputElement) {
        if (element.readOnly && !["password", "url", "hidden"].includes(element.type)) {
            element.value = owowify(element.value);
            element.placeholder = owowify(element.placeholder);
        }
    }

    if (element.hasAttribute("title")) {
        element.setAttribute("title", owowify(element.getAttribute("title")));
    }

    for (const node of element.childNodes) {
        if (node.nodeType == Node.ELEMENT_NODE) {
            owowifySubtree(node);
        }
        if (node.nodeType == Node.TEXT_NODE && currentElementValid) {
            owowifyTextNode(node);
        }
    }
}

/** @param {Node} node */
function owowifyTextNode(node) {
    if (node.nodeType == Node.TEXT_NODE) {
        node.nodeValue = owowify(node.nodeValue);
    }
}

/** @param {Element} element */
function isElementValidOwowify(element) {
    if (element == null) return null;
    if (element.noOwowify || element.classList?.contains?.("-owo-no-owowify")) return false;
    if (element instanceof HTMLInputElement) {
        return !element.textContent.includes(element.href);
    }
    return !(element.matches(blocklistTags) || element.isContentEditable);
}

/**
 * @param {String} inputText 
 * @returns {String}
 */
function owowify(inputText) {
    const endSentencePattern = String.raw`([\w ,.!?]+)?`; // endSentencePattern
    // const endSentencePattern1 = String.raw`([\w ,.?]+)?`; // endSentencePattern without "!" sign
    // const endSentencePattern2 = String.raw`([\w ,.]+)?`; // endSentencePattern without "!" and "?" sign
    const vowel = "[aiueo]";
    const vowelNoE = "[aiuo]"; // vowel without e
    const vowelNoIE = "[auo]"; // vowel without i and e
    const zackqyWord = "[jzckq]";

    const result = inputText
    // OwO emote
        .replace(reg`/(i(?:'|)m(?:\s+|\s+so+\s+)bored)${endSentencePattern}/gi`, subOwoEmote("-w-"))
        .replace(reg`/(love\s+(?:you|him|her|them))${endSentencePattern}/gi`, subOwoEmote("uwu"))
        .replace(reg`/(i\s+don(?:'|)t\s+care|i\s*d\s*c)${endSentencePattern}/gi`, subOwoEmote("0w0"))
    // world substitution
        .replace(reg`/l${vowel}ve?/gi`, $0 => subSameCase($0, "luv"))
    // OwO translation
    /* replace all "r" to "w", no exception! */
        .replace(/r/gi, $0 => subSameCase($0, "w"))
    /* lame -> wame, goal -> goaw, gallery -> gallewy, lol -> lol, null -> null */
        .replace(reg`/(?<!([wl]${vowel}+)|l)l(?!(${vowel}?l+)|.${vowel})/gi`, $0 => subSameCase($0, "w"))
    /* na -> nya, nu -> nyu, no -> nyo, ne -> nye */
        .replace(reg`/n(${vowelNoE}+)/gi`,
            ($0, $vowel) => subSameCase($0 + $vowel, `ny${$vowel}`))
    /* ma -> mya, mu -> myu, mo -> myo */
        .replace(reg`/m(${vowelNoIE}+)(?!w*${zackqyWord})/gi`,
            ($0, $vowel) => subSameCase($0 + $vowel, `my${$vowel}`))
    /* pa -> pwa, pu -> pwu, po -> pwo */
        .replace(reg`/p(${vowelNoIE}+)(?!w*${zackqyWord})/gi`,
            ($0, $vowel) => subSameCase($0 + $vowel, `pw${$vowel}`));

    return result;
}

function subOwoEmote(emote) {
    const matchEndSpace = /^\s+$/g;

    return ($0, $setenceBeforeEnd, $endSentence) => {
        if ($endSentence == undefined || matchEndSpace.test($endSentence)) {
            return `${$setenceBeforeEnd} ${emote}`;
        }
        else return $0;
    }
}

/** 
 * @param {string} inputText
 * @param {string} replaceText
 */
function subSameCase(inputText, replaceText) {
    let result = "";

    for (let i = 0; i < replaceText.length; i++) {
        if (inputText[i] != undefined && replaceText[i] != undefined) {
            if (inputText[i].toUpperCase() == inputText[i]) {
                result += replaceText[i].toUpperCase();
            }
            else if (inputText[i].toLowerCase() == inputText[i]) {
                result += replaceText[i].toLowerCase();
            }
            else {
                result += replaceText[i];
            }
        }
        else {
            result += replaceText[i];
        }
    }

    return result;
}

/** @param {[string[], ...any[]]} templateArgs */
function reg(...templateArgs) {
    const rawString = String.raw(...templateArgs);
    const pattern = rawString.substring(1, rawString.lastIndexOf("/"));
    const flags = rawString.substring(rawString.lastIndexOf("/")+1, rawString.length);

    return new RegExp(pattern, flags);
}

// mdn docs
/** @param {string} str */
function regexEscape(str) {
    return str.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); // $& means the whole matched string
}