gistfile1.js

function absolutifyUrls(data, sourceUrl) {
  var relRe = /:\/\//;
  var domainRe = /.*?\/\/[^?/]*/;
  var pathRe = /.*\//;
  if (sourceUrl.length-sourceUrl.replace(/\//g,"").length==2) {
    sourceUrl += "/";
  }
  if (typeof(data)=="string") {
    data = jQuery("<div>"+data+"</div>");
  } else if (typeof(data)=="object") {
    data = jQuery('<div>').append(data);
  }
  jQuery("a",data).each(function correctUrls(){
    var el = jQuery(this);
    var href = el.attr("href");
    if (!relRe.exec(href)) {
      if (href[0] == "/") {
        href = domainRe.exec(sourceUrl)+href;
      }
      else {
        href = pathRe.exec(sourceUrl)+href;
      }
      el.attr("href", href);
    }
  });
  return data.html();
};

CmdUtils.CreateCommand({
  name: "example",
  preview: function(pblock) {
    pblock.innerHTML = "<h3>Tests</h3><br>";
    pblock.innerHTML += absolutifyUrls("<a href='/search?q=ubiquity'>ubiquity</a><br>", "http://google.com/");
    pblock.innerHTML += absolutifyUrls("<a href='../search?q=ubiquity'>ubiquity</a><br>", "http://google.com/");
    pblock.innerHTML += absolutifyUrls("<a href='../search?q=ubiquity'>ubiquity</a><br>", "http://google.com/help");
    pblock.innerHTML += absolutifyUrls("<a href='search?q=ubiquity'>ubiquity</a><br>", "http://google.com/help");
    pblock.innerHTML += absolutifyUrls("<a href='search?q=ubiquity'>ubiquity</a><br>", "http://google.com");
  }
});