String of keys and values ---> Object

keystr.js

/*
 * Returns an un-evaluated object from keys and values.
 * @param {String} str - a string of keys and values separated by commas,
 * 
 * Example:
 * keyStr('firstname: "Noah", lastname: "Portes Chaikin", address: address_var');
 * => Object {firstname: ""Noah"", lastname: ""PortesChaikin"", address: "address_var"}
 */

function keyStr(str) {
  
  var cur = function () { 
    return str.charAt(0) 
  }
  
  var advance = function () {
    str = str.substr(1).trim() 
  }
  
  var object = {};
  
  while (str.length) {
    var key = ''
      , match;
      
    while (cur() !== ':') { 
      key += cur(); advance(); 
    } 
    
    advance();
    
    object[key] = '';
    
    if (match = /('|")/.exec(cur())) {
      
      object[key] += match[0]; 
      advance();
      
      while (cur() !== match[0] && cur()) {
        object[key] += cur(); 
        advance();
      }
      
      object[key] += match[0]; 
      advance();
      
    } else {
      
      while (cur() !== ',' && cur()) {
        object[key] += cur(); 
        advance();
      }
      
    }
    
    advance();
    
  }
  
  return object;
  
}

/*
 * Minified...
 * 
 */
 
function keyStr(e){var t=function(){return e.charAt(0)};var n=function(){e=e.substr(1).trim()};var r={};while(e.length){var i="",s;while(t()!==":"){i+=t();n()}n();r[i]="";if(s=/('|")/.exec(t())){r[i]+=s[0];n();while(t()!==s[0]&&t()){r[i]+=t();n()}r[i]+=s[0];n()}else{while(t()!==","&&t()){r[i]+=t();n()}}n()}return r}