Unobfuscate SPIEGEL plus articles with greasemonkey

unob_spiegelplus.user.js

// ==UserScript==
// @name        unobfuscate spiegel plus
// @namespace   obfuscate
// @include     http://www.spiegel.de/*
// @include     http://m.spiegel.de/* 
// @version     1
// @grant       none
// ==/UserScript==
if(document.getElementsByClassName('obfuscated-content')[0] != undefined) {
  document.getElementsByClassName('obfuscated-content')[0].setAttribute("class", "");
  var elems = document.getElementsByClassName('obfuscated'), t, or, c, i, cc;
  for(i in elems) {
    or = elems[i].innerHTML;
    t = "";
    inElement = false;
    openTag = -1;
    isATag = false;
    closingTag = false;
    dontTranslate = false;
    if(or != undefined)
      for(c=0; c<or.length; ++c) {
        if(openTag>-1)
          openTag++;

        cc = or.charCodeAt(c);
        if(cc == 60) { // "<"
          dontTranslate = true;
          inElement = true;
          openTag = 0;
        }

        if(cc>33 && !dontTranslate) {
          switch(cc) {
            case 180: t += ";"; break;
            case 178: t += "!"; break;
            case 177: t += "&"; break;
            default:
              t += String.fromCharCode(cc-1);
          }
        }
        else
           t += or.charAt(c);

        if(openTag==1 && cc == 97) // <a ...
          isATag = true;

        if(openTag==1 && cc == 47) // "</"
          closingTag = true;

        if(inElement && cc == 62) { // "<...>"
          dontTranslate = isATag && !closingTag;
          isATag = false;

          inElement = closingTag = false;
          openTag = -1;
        }
      }
    elems[i].innerHTML = t;
  }
}