pastebin link formatter

Turns URL patterns in pastebin pages into actual links. (see code for examples)

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

Bạn sẽ cần cài đặt một tiện ích mở rộng như Tampermonkey hoặc Violentmonkey để cài đặt kịch bản này.

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.

(Tôi đã có Trình quản lý tập lệnh người dùng, hãy cài đặt nó!)

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==
// @id             pastebin-linkize
// @name           pastebin link formatter
// @version        1.0
// @namespace      hax
// @author         
// @description    Turns URL patterns in pastebin pages into actual links. (see code for examples)
// @include        http://pastebin.com/*
// @run-at         document-end
// ==/UserScript==

/*
syntax: <contents> link (on one line)
=> <a href="link">contents</a>

ommitting [] will make
=> <a href="link">link</a>

-<contents> link (to leave the text plain)
=> <contents> link

contents may not include right angle brackets or % by itself.
(is unescaped though so %3e will become > and %25 will become %)
(and %51 will become Q if you don't want to type Q for some reason)

examples:

---<reddit>https://reddit.com/
=> --<reddit> https://reddit.com/
=> -<reddit> https://reddit.com/
=> <reddit> https://reddit.com/
-<hell> http://4chan.us/
=> <hell> http://4chan.us/
--https://github.com/ 
=> -https://github.com/
-<meetup> http://meetup.com
=> <meetup> http://meetup.com
-<no site %3e this one> https://pastebin.com
=> <no site %3e this one> https://pastebin.com/

*/

var urlpatt = new RegExp('(-)?(?:<([^>]*)>\\s*)?(https?://[^ ]+)','g');

function reformatOne(t) {
  var pieces = t.nodeValue.split(urlpatt);
  if(pieces.length == 1) {
    return 0;
  }
  var lastTextNode = null;
  function addtext(text) {
    console.log('add '+text);
    if(!text) return;
    if(lastTextNode==null) {
      lastTextNode = document.createTextNode(text);
      t.parentNode.insertBefore(lastTextNode,t);
    } else {
      lastTextNode.nodeValue += text;
    }
  }
  var islink = false;
  var i;
  console.log('pieces');
  console.log(t.nodeValue);
  console.log(pieces);
  for(i=0; i < pieces.length; ++i) {
    var piece = pieces[i];
    if(islink) {      
      // a ()? capture returns undefined instead of omitting the capture
      var skip = piece;
      var contents = pieces[++i];
      var href = pieces[++i];
      if(skip) {
        if(contents == undefined)
          contents = href;
        else
          contents = '<' + contents + '> ' + href;
        addtext(contents);
        islink = false;
        continue;
      }
      if(contents == undefined) {
        contents = href;
      } else {
        contents = unescape(contents);
      }
      
      var link = document.createElement('a');
      link.setAttribute('href',href);
      link.appendChild(document.createTextNode(contents));
      t.parentNode.insertBefore(link,t);
      lastTextNode = null;
      islink = false;
    } else {
      addtext(piece);
      islink = true;
    }
  }
  t.parentNode.removeChild(t);
  return i + 1;
}

function reformat(e) {
  if (e.nodeValue) {
    reformatOne(e);
  } else if(e.childNodes.length > 0) {
    // do NOT iterate and SAVE the next step
    // otherwise we descend into the links we created!
    var cur = e.childNodes[0];
    while(cur) {
      var next = cur.nextSibling;
      reformat(cur);
      cur = next;
    }    
  }
}

var div = document.getElementById('selectable');
if(div)
  reformat(div);