text: /**
   * command line tool
   *
   * @author Zongmin Lei<leizongmin@gmail.com>
   */
  
  var xss = require("./");
  var readline = require("readline");
  
  var rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
  });
  
  console.log('Enter a blank line to do xss(), enter "@quit" to exit.\n');
  
  function take(c, n) {
    var ret = "";
    for (var i = 0; i < n; i++) {
      ret += c;
    }
    return ret;
  }
  
  function setPrompt(line) {
    line = line.toString();
    rl.setPrompt("[" + line + "]" + take(" ", 5 - line.length));
    rl.prompt();
  }
  
  setPrompt(1);
  
  var html = [];
  rl.on("line", function (line) {
    if (line === "@quit") return process.exit();
    if (line === "") {
      console.log("");
      console.log(xss(html.join("\r\n")));
      console.log("");
      html = [];
    } else {
      html.push(line);
    }
    setPrompt(html.length + 1);
  });
  