poli.user.js

// ==UserScript==
// @match http://*/*
// ==/UserScript==


function addJQuery(callback) {
  var script = document.createElement("script");
  script.setAttribute("src", "http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js");
  script.addEventListener('load', function() {
    var script = document.createElement("script");
    script.textContent = "(" + callback.toString() + ")();";
    document.body.appendChild(script);
  }, false);
  document.body.appendChild(script);
}

// the guts of this userscript
function main() {
var nc = {
      A : "<span style='color:yellow;background:yellow;'>A</span>", // yellow
      T : "<span style='color:green;background:green;'>T</span>",  // green
      C : "<span style='color:blue;background:blue;'>C</span>",   // blue
      G : "<span style='color:red;background:red;'>G</span>"     // red
};

var char2codon = function (char) {
    if (char == "a") {
     return nc["C"]+nc["T"]+nc["C"];
    }
    else if (char == "f") {
     return nc["C"]+nc["C"]+nc["C"];
    }
    else if (char == "w") {
     return nc["C"]+nc["A"]+nc["C"];
    }
    else if (char == "y") {
     return nc["C"]+nc["G"]+nc["C"];
    }
    else if (char == "k") {
     return nc["C"]+nc["G"]+nc["A"];
    }
    else if (char == "v") {
     return nc["C"]+nc["G"]+nc["G"];
    }
    else if (char == "e") {
     return nc["T"]+nc["C"]+nc["C"];
    }
    else if (char == "i") {
     return nc["T"]+nc["T"]+nc["C"];
    }
    else if (char == "b") {
     return nc["C"]+nc["A"]+nc["T"];
    }
    else if (char == "h") {
     return nc["T"]+nc["G"]+nc["G"];
    }
    else if (char == "u") {
     return nc["T"]+nc["A"]+nc["A"];
    }
    else if (char == "m") {
     return nc["A"]+nc["T"]+nc["C"];
    }
    else if (char == "s") {
     return nc["A"]+nc["T"]+nc["T"];
    }
    else if (char == "p") {
     return nc["A"]+nc["A"]+nc["C"];
    }
    else if (char == "l") {
     return nc["A"]+nc["A"]+nc["A"];
    }
    else if (char == "h") {
     return nc["A"]+nc["G"]+nc["A"];
    }
    else if (char == "g") {
     return nc["A"]+nc["C"]+nc["G"];
    }
    else if (char == "r") {
     return nc["G"]+nc["C"]+nc["T"];
    }
    else if (char == "o") {
     return nc["G"]+nc["T"]+nc["C"];
    }
    else if (char == "d") {
     return nc["G"]+nc["A"]+nc["C"];
    }
    else if (char == "n") {
     return nc["G"]+nc["A"]+nc["A"];
    }
    else if (char == "t") {
     return nc["G"]+nc["G"]+nc["C"];
    }
    else if (char == "\n") {
     return "\n";
    }
    else if (char == "\r") {
     return "\r";
    }
    else {
     return nc["A"]+nc["A"]+nc["A"]
    }
}

var tocodon = function (phrase){
    var newline = "";
    for (var i=0; i<phrase.length;i++){
        newline += char2codon(phrase[i].toLowerCase());
    }
    return $(newline);
}


   // .find(":only-child")
   $(":contains(text)").find("a,p,li,pre").each(function(){
	console.log($(this).text());
	var text = $(this).text();
	$(this).text("");
	$(this).html(tocodon(text));
   });
}

// load jQuery and execute the main function
addJQuery(main);