string.js

/*
Original:
  loc: function(str) {
    // NB: This could be implemented as a wrapper to locWithDefault() but
    // it would add some overhead to deal with the arguments and adds stack
    // frames, so we are keeping the implementation separate.
    if (!SC.Locale.currentLocale) { SC.Locale.createCurrentLocale(); }

    var localized = SC.Locale.currentLocale.locWithDefault(str);
    if (SC.typeOf(localized) !== SC.T_STRING) { localized = str; }

    var args = SC.$A(arguments);
    args.shift(); // remove str param
    //to extend String.prototype
    if (args.length > 0 && args[0] && args[0].isSCArray) { args = args[0]; }

    // I looked up the performance of try/catch. IE and FF do not care so
    // long as the catch never happens. Safari and Chrome are affected rather
    // severely (10x), but this is a one-time cost per loc (the code being
    // executed is likely as expensive as this try/catch cost).
    //
    // Also, .loc() is not called SO much to begin with. So, the error handling
    // that this gives us is worth it.
    try {
      return SC.String.fmt(localized, args);      
    } catch (e) {
      SC.error("Error processing string with key: " + str);
      SC.error("Localized String: " + localized);
      SC.error("Error: " + e);
    }

  },
 */

SC.String.loc = function (str) {
  var compprop = SC.Function.property(function (str) {
    if (!SC.Locale.currentLocale) { SC.Locale.createCurrentLocale(); }

    var localized = SC.Locale.currentLocale.locWithDefault(str);
    if (SC.typeOf(localized) !== SC.T_STRING) { localized = str; }

    var args = SC.$A(arguments);
    args.shift(); // remove str param
    //to extend String.prototype
    if (args.length > 0 && args[0] && args[0].isSCArray) { args = args[0]; }

    // I looked up the performance of try/catch. IE and FF do not care so
    // long as the catch never happens. Safari and Chrome are affected rather
    // severely (10x), but this is a one-time cost per loc (the code being
    // executed is likely as expensive as this try/catch cost).
    //
    // Also, .loc() is not called SO much to begin with. So, the error handling
    // that this gives us is worth it.
    try {
      return SC.String.fmt(localized, args);      
    } catch (e) {
      SC.error("Error processing string with key: " + str);
      SC.error("Localized String: " + localized);
      SC.error("Error: " + e);
    }
  }, ['SC.Locale.currentLocale']);
  return compprop.cacheable();
};