2ch Deencoder

// ==UserScript==
// @name        2ch Deencoder
// @namespace   2ch
// @include     https://2ch.hk/*
// @version     v0.2.1
// @grant       none
// ==/UserScript==

function r(el) {
    var a = el.getElementsByTagName('a');
    for (var i = 0; i < a.length; i++) {

        {
            let lc = a[i].href.slice(-1);
            if (/\.|\)|,/.test(lc)) {
                a[i].href = a[i].href.slice(0,-1);
                a[i].innerHTML = a[i].innerHTML.slice(0,-1);
                a[i].nextSibling.textContent = lc + a[i].nextSibling.textContent;
            }
        }

        var tmp = a[i].innerHTML;
        tmp = tmp.replace(/(?:#)([\w.]+)/, function (match) {
            return match.replace(/\.([0-9A-F]{2})/gi, '%$1');
        });
        try {
            tmp = decodeURI(tmp);
        }
        catch (e) {}
        tmp = tmp.replace(/https?:\/\/2ch\.hk\/(\w+)\/res\/(\w+)(\.html|\.(\w+))/, '2ch/$1:$2$4');
        tmp = tmp.replace(/https?:\/\/2ch\.hk\/faq\/faq_(\w+)\.html/, '2ch/faq:$1');
        tmp = tmp.replace(/https?:\/\/(4stor)\.ru\/[\w-]+\/\d+-([\w-]+)\.html/, '$1:$2');
        tmp = tmp.replace(/https?:\/\/(arhivach)\.org\/thread\//, '$1:');
        tmp = tmp.replace(/https?:\/\/(web\.archive)\.org\/web\/(\d+|\*)\/https?:\/\//, '$1:');
        tmp = tmp.replace(/https?:\/\/geektimes\.ru\/post\//, 'GT:');
        tmp = tmp.replace(/https?:\/\/github.com\//, 'git:');
        tmp = tmp.replace(/https?:\/\/([^.]+\.github\.io)\//, '$1:');
        tmp = tmp.replace(/https?:\/\/habrahabr\.ru\/company\/(\w+)\/blog\//, '$1.habr:');
        tmp = tmp.replace(/https?:\/\/habrahabr\.ru\/post\//, 'habr:');
        tmp = tmp.replace(/https?:\/\/(pastebin)\.com\/?([^/]{0,}\/|raw\.php\?i=)(\w+)/, '$1:$3');
        //    tmp = tmp.replace(/https?:\/\/(pastebin\.com)\/?([^/]{0,}\/|raw\.php\?i=)(\w+)/, '$1:$3<br><iframe src="//$1/raw/$3" style="background:wheat;width:100%"></iframe>');
        tmp = tmp.replace(/https?:\/\/forum\.oszone\.net\/thread-(\d+)\.html/, 'forum.OSZone:$1');
        tmp = tmp.replace(/https?:\/\/(w+\.)?opennet\.ru\/opennews\/art\.shtml\?num=(\d+)/, 'news.opennet:$2');
        tmp = tmp.replace(/https?:\/\/(rghost)\.(ru|net)\//, '$1:');
        tmp = tmp.replace(/https?:\/\/sdi-tool\.org\S+/, 'SDI');
        tmp = tmp.replace(/https?:\/\/([^.]+)\.sourceforge\.net/, '$1.sf.net');
        tmp = tmp.replace(/https?:\/\/(sourceforge|sf)\.net\/p(rojects)?\/([^\/]+).?/, '$3.sf.net');
        //    tmp = tmp.replace(/https?:\/\/(w+\.)?youtu(\.be\/|be\.com\/watch\?v=)([\d\w]+)/, 'youtube:$3');
        tmp = tmp.replace(/https?:\/\/(w+\.)?(youtube\.)com\/user\/([\d\w]+)\/?\S{0,}/, '$2user:$3');
        tmp = tmp.replace(/https?:\/\/vk\.com\/(\S+)/, 'vk:$1');
        tmp = tmp.replace(/https?:\/\/(vocaroo)\.com\/i\/(\S+)/, '$1:$2');
        tmp = tmp.replace(/http:\/\/((\w{2}\.)?([\w-]+\.wikia))\.com\/wiki\//, '$3:');
        tmp = tmp.replace(/https?:\/\/(\w+)(\.m)?\.wikipedia\.org\/wiki\//, '$1.wiki:');
        tmp = tmp.replace(/https?:\/\/(w+\.)?linux\.org\.ru\/(\w+)\/(\w+)\//, 'LOR.$2.$3:');
        tmp = tmp.replace(/https?:\/\/(play)\.(google)\.com\/store\/(apps)\/details\?id=\w+\.([\w.]+).*/, '$3@$2.$1:$4');
        tmp = tmp.replace(/https?:\/\/(f-droid)\.org\/packages\/\w+\.([\w.]+).*/, '$1:$2');
        //tmp = tmp.replace(//, '');

        /* Arch, Debian, Gentoo, LOR wikies
https://wiki.debian.org/ath9k
https://wiki.archlinux.org/index.php/Arch_Linux
https://wiki.gentoo.org/wiki/GRUB2/ko
https://lorwiki.org.ru/wiki/Что_такое_командная_строка_и_как_в_ней_работать
*/
        if ( tmp.search('wiki') + 1 ) {
//            tmp = tmp.replace(/https:\/\/(wiki\.)?([^.]+)\.\w{2,3}\/(wiki\/|index\.php(\/|\?title=)?|\w{2}\/)(.+)/, 'wiki.$2:$5');
//            tmp = tmp.replace(/https?:\/\/(www\.)?(wiki\.)?([^.]+)[^\/]+\/(wiki\/|index\.php(\/|\?title=)?|\w{2}\/)?(.+)/, 'wiki.$3:$6');
            tmp = tmp.replace(/https?:\/\/(www\.)?(wiki\.)?([^.]+)[^\/]+\/(wiki\/|index\.php(\/|\?title=)?|\w{2}\/)?(.+)/, 'wiki.$3:$6');

        }

        // fourm general
        tmp = tmp.replace(/https?:\/\/(w+\.|forums?\.)?([^.]+\.\w+)\/(forum\/)?(index\.php\?showtopic=|viewtopic\.php\?)(.*)/, 'forum.$2:$5');


        tmp = tmp.replace(/https?:\/\/chrome\.google\.com\/webstore\/detail\/([^/]+)\/\S+/, 'chrome_extension:$1');
        // Old style
//        tmp = tmp.replace(/https?:\/\/addons\.mozilla\.org(\/\w{2}(-\w{2})?)?\/?(firefox|android)?\/addon\/([^\/]+)/, 'firefox_addon:$4');
        tmp = tmp.replace(/https?:\/\/addons\.mozilla\.org(\/\w{2}(-\w{2})?)?\/?(firefox|android)?\/addon\/([^\/]+)(\/.+)?/, 'firefox_addon:$4');
        // After update
        tmp = tmp.replace(/https?:\/\/addons\.mozilla\.org\/downloads\/latest-?(\w+)?\/(\d+)\/addon-\d+-latest\.xpi[^\s]+/, 'firefox_addon:$2_$1');
        tmp = tmp.replace(/https?:\/\/addons\.opera\.com\/\w{2}-\w{2}\/extensions\/details\/([^/]+)/, 'opera_addon:$1');

        tmp = tmp.replace(/(https?:\/\/)www\./, '$1');
        tmp = tmp.replace(/\.html?$/, '');
        a[i].innerHTML = tmp.replace(/\/$/, '');
    }
}

r(document);

[document.getElementById('posts-form'), document.querySelector('.thread')].forEach(node =>
    new MutationObserver(
        mutations => mutations.forEach( mutation => mutation.addedNodes.forEach( node=>r(node) ) )
    ).observe(node, { childList: true })
);