Link Wrapper

Wraps links with specified protocols in <a> tags.

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 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              Link Wrapper
// @author             TM
// @namespace    https://trap.jp/
// @version           0.1
// @description     Wraps links with specified protocols in <a> tags.
// @match             *://*/*
// @grant               none
// @license           MIT
// ==/UserScript==

(function() {
    'use strict';

    var regexp_url = /((h?)(ttps?:\/\/[a-zA-Z0-9.\-_@:/~?%&;=+#',()*!]+))/g;

    var wrapLink = function(all, url, h, href) {
        return '<a href="h' + href + '" target="_blank">' + url + '</a><br/>';
    }

    /**
     * 渡されるコンテンツ:
     *   - <div>hoge<div>...<div>fuga</div>
     *  <div>hogefuga</div>
     */
    function wrapLinks(element) {
        var textContent = "";
        if(element.nodeType === 3) {
            textContent = element.textContent;
        }
        else{
            for(var elem of element.childNodes){
                console.log(elem);
                console.log(elem.nodeType);
                if(elem.nodeType === 3) {
                    textContent += elem.textContent;
                }
            }
        }
        if (textContent) {
            var newTextContent = textContent.replace(regexp_url, wrapLink);
            if (newTextContent !== textContent) {
                element.innerHTML = newTextContent;
            }
        }
    }

    function traverseAndWrap(element) {
        if(element.tagName === "A" || element.tagName === "STYLE" || element.tagName === "SCRIPT"){
            return;
        }
        if (element.childNodes.length === 1) {
            console.log(element);
            wrapLinks(element);
        }

        for (var i = 0; i < element.childNodes.length; i++) {
            var childNode = element.childNodes[i];
            if (childNode.nodeType === 1) {
                traverseAndWrap(childNode);
            }
        }

    }

    window.addEventListener('load', function() {
        traverseAndWrap(document.body);
    });
})();