text: var PreJsPy = require("./src/js/PreJsPy.js");
  
  /**
   * Parses a single expression and prints the result to stdout.
   * @param {string} expr Expression to parse.
   */
  function run_example(expr){
      var p = new PreJsPy.PreJsPy();
      console.log(p.parse(expr));
  }
  
  function main(){
      run_example('"Hello world"');
  }
  
  main();