Text To link

Turn plain text URLs into clickable links

As of 2018-05-12. See the latest version.

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						Text To link
// @description					Turn plain text URLs into clickable links
// @description:zh				把文字链接转换为可点击链接
// @author						lkytal
// @namespace					Lkytal
// @version						2.8.6
// @homepage					https://lkytal.github.io/
// @homepageURL					https://lkytal.github.io/GM
// @license						AGPL
// @include						*
// @exclude						*pan.baidu.com/*
// @exclude						*renren.com/*
// @exclude						*exhentai.org/*
// @exclude						*music.google.com/*
// @exclude						*play.google.com/music/*
// @exclude						*mail.google.com/*
// @exclude						*docs.google.com/*
// @exclude						*www.google.*
// @exclude						*acid3.acidtests.org/*
// @exclude						*.163.com/*
// @exclude						*.alipay.com/*
// @run-at						document-end
// @icon						https://github.com/lkytal/GM/raw/master/icons/link.png
// @grant						unsafeWindow
// @charset						UTF-8
// @supportURL					https://github.com/lkytal/GM/issues
// ==/UserScript==

"use strict";
;
var clearLink, excludedTags, linkFilter, linkMixInit, linkPack, linkify, observePage, observer, setLink, urlPrefixes, url_regexp, xPath;

url_regexp = /((https?:\/\/|www\.)[\x21-\x7e]+[\w\/]|(\w[\w._-]+\.(com|cn|org|net|info|tv|cc|gov|edu))(\/[\x21-\x7e]*[\w\/])?|ed2k:\/\/[\x21-\x7e]+\|\/|thunder:\/\/[\x21-\x7e]+=)/gi;

urlPrefixes = ['http://', 'https://', 'ftp://', 'thunder://', 'ed2k://'];

clearLink = function (event) {
  var j, len, link, prefix, ref, ref1, url;
  link = (ref = event.originalTarget) != null ? ref : event.target;
  if (!(link != null && link.localName === "a" && ((ref1 = link.className) != null ? ref1.indexOf("textToLink") : void 0) !== -1)) {
    return;
  }
  url = link.getAttribute("href");
  //console.log url
  for (j = 0, len = urlPrefixes.length; j < len; j++) {
    prefix = urlPrefixes[j];
    if (url.indexOf(prefix) === 0) {
      return;
    }
  }
  return link.setAttribute("href", "http://" + url);
};

document.addEventListener("mouseover", clearLink);

setLink = function (candidate) {
  var ref, ref1, ref2, span, text;
  if (candidate == null || ((ref = candidate.parentNode) != null ? (ref1 = ref.className) != null ? typeof ref1.indexOf === "function" ? ref1.indexOf("textToLink") : void 0 : void 0 : void 0) !== -1 || candidate.nodeName === "#cdata-section") {
    return;
  }
  text = candidate.textContent.replace(url_regexp, '<a href="$1" target="_blank" class="textToLink">$1</a>');
  if (((ref2 = candidate.textContent) != null ? ref2.length : void 0) === text.length) {
    return;
  }
  span = document.createElement("span");
  span.innerHTML = text;
  return candidate.parentNode.replaceChild(span, candidate);
};

excludedTags = "a,svg,canvas,applet,input,button,area,pre,embed,frame,frameset,head,iframe,img,option,map,meta,noscript,object,script,style,textarea,code".split(",");

xPath = '//text()[not(ancestor::' + excludedTags.join(') and not(ancestor::') + ')]';

linkPack = function (result, start) {
  var i, j, k, ref, ref1, ref2, ref3, startTime;
  startTime = Date.now();
  while (start + 10000 < result.snapshotLength) {
    for (i = j = ref = start, ref1 = start + 10000; ref <= ref1 ? j <= ref1 : j >= ref1; i = ref <= ref1 ? ++j : --j) {
      setLink(result.snapshotItem(i));
    }
    start += 10000;
    if (Date.now() - startTime > 2500) {
      return;
    }
  }
  for (i = k = ref2 = start, ref3 = result.snapshotLength; ref2 <= ref3 ? k <= ref3 : k >= ref3; i = ref2 <= ref3 ? ++k : --k) {
    setLink(result.snapshotItem(i));
  }
};

linkify = function (node) {
  var result;
  result = document.evaluate(xPath, node, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
  return linkPack(result, 0);
};

linkFilter = function (node) {
  var j, len, tag;
  for (j = 0, len = excludedTags.length; j < len; j++) {
    tag = excludedTags[j];
    if (tag === node.parentNode.localName.toLowerCase()) {
      return NodeFilter.FILTER_REJECT;
    }
  }
  return NodeFilter.FILTER_ACCEPT;
};

observePage = function (root) {
  var tW;
  tW = document.createTreeWalker(root, NodeFilter.SHOW_TEXT, { //+ NodeFilter.SHOW_ELEMENT,
    acceptNode: linkFilter
  }, false);
  while (tW.nextNode()) {
    setLink(tW.currentNode);
  }
};

observer = new window.MutationObserver(function (mutations) {
  var Node, j, k, len, len1, mutation, ref;
  for (j = 0, len = mutations.length; j < len; j++) {
    mutation = mutations[j];
    if (mutation.type === "childList") {
      ref = mutation.addedNodes;
      for (k = 0, len1 = ref.length; k < len1; k++) {
        Node = ref[k];
        observePage(Node);
      }
    }
  }
});

linkMixInit = function () {
  if (window !== window.top || window.document.title === "") {
    return;
  }
  //console.time('a')
  linkify(document.body);
  //console.timeEnd('a')
  return observer.observe(document.body, {
    childList: true,
    subtree: true
  });
};

setTimeout(linkMixInit, 100);