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    1 diff --git a/lib/util.js b/lib/util.js
    2 index a03e874..9074e8e 100644
    3 --- a/lib/util.js
    4 +++ b/lib/util.js
    5 @@ -19,430 +19,6 @@
    6  // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
    7  // USE OR OTHER DEALINGS IN THE SOFTWARE.
    8 
    9 -var formatRegExp = /%[sdj%]/g;
   10 -exports.format = function(f) {
   11 -  if (!isString(f)) {
   12 -    var objects = [];
   13 -    for (var i = 0; i < arguments.length; i++) {
   14 -      objects.push(inspect(arguments[i]));
   15 -    }
   16 -    return objects.join(' ');
   17 -  }
   18 -
   19 -  var i = 1;
   20 -  var args = arguments;
   21 -  var len = args.length;
   22 -  var str = String(f).replace(formatRegExp, function(x) {
   23 -    if (x === '%%') return '%';
   24 -    if (i >= len) return x;
   25 -    switch (x) {
   26 -      case '%s': return String(args[i++]);
   27 -      case '%d': return Number(args[i++]);
   28 -      case '%j':
   29 -        try {
   30 -          return JSON.stringify(args[i++]);
   31 -        } catch (_) {
   32 -          return '[Circular]';
   33 -        }
   34 -      default:
   35 -        return x;
   36 -    }
   37 -  });
   38 -  for (var x = args[i]; i < len; x = args[++i]) {
   39 -    if (isNull(x) || !isObject(x)) {
   40 -      str += ' ' + x;
   41 -    } else {
   42 -      str += ' ' + inspect(x);
   43 -    }
   44 -  }
   45 -  return str;
   46 -};
   47 -
   48 -
   49 -// Mark that a method should not be used.
   50 -// Returns a modified function which warns once by default.
   51 -// If --no-deprecation is set, then it is a no-op.
   52 -exports.deprecate = function(fn, msg) {
   53 -  // Allow for deprecating things in the process of starting up.
   54 -  if (isUndefined(global.process)) {
   55 -    return function() {
   56 -      return exports.deprecate(fn, msg).apply(this, arguments);
   57 -    };
   58 -  }
   59 -
   60 -  if (process.noDeprecation === true) {
   61 -    return fn;
   62 -  }
   63 -
   64 -  var warned = false;
   65 -  function deprecated() {
   66 -    if (!warned) {
   67 -      if (process.throwDeprecation) {
   68 -        throw new Error(msg);
   69 -      } else if (process.traceDeprecation) {
   70 -        console.trace(msg);
   71 -      } else {
   72 -        console.error(msg);
   73 -      }
   74 -      warned = true;
   75 -    }
   76 -    return fn.apply(this, arguments);
   77 -  }
   78 -
   79 -  return deprecated;
   80 -};
   81 -
   82 -
   83 -var debugs = {};
   84 -var debugEnviron;
   85 -exports.debuglog = function(set) {
   86 -  if (isUndefined(debugEnviron))
   87 -    debugEnviron = process.env.NODE_DEBUG || '';
   88 -  set = set.toUpperCase();
   89 -  if (!debugs[set]) {
   90 -    if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
   91 -      var pid = process.pid;
   92 -      debugs[set] = function() {
   93 -        var msg = exports.format.apply(exports, arguments);
   94 -        console.error('%s %d: %s', set, pid, msg);
   95 -      };
   96 -    } else {
   97 -      debugs[set] = function() {};
   98 -    }
   99 -  }
  100 -  return debugs[set];
  101 -};
  102 -
  103 -
  104 -/**
  105 - * Echos the value of a value. Trys to print the value out
  106 - * in the best way possible given the different types.
  107 - *
  108 - * @param {Object} obj The object to print out.
  109 - * @param {Object} opts Optional options object that alters the output.
  110 - */
  111 -/* legacy: obj, showHidden, depth, colors*/
  112 -function inspect(obj, opts) {
  113 -  // default options
  114 -  var ctx = {
  115 -    seen: [],
  116 -    stylize: stylizeNoColor
  117 -  };
  118 -  // legacy...
  119 -  if (arguments.length >= 3) ctx.depth = arguments[2];
  120 -  if (arguments.length >= 4) ctx.colors = arguments[3];
  121 -  if (isBoolean(opts)) {
  122 -    // legacy...
  123 -    ctx.showHidden = opts;
  124 -  } else if (opts) {
  125 -    // got an "options" object
  126 -    exports._extend(ctx, opts);
  127 -  }
  128 -  // set default options
  129 -  if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
  130 -  if (isUndefined(ctx.depth)) ctx.depth = 2;
  131 -  if (isUndefined(ctx.colors)) ctx.colors = false;
  132 -  if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
  133 -  if (ctx.colors) ctx.stylize = stylizeWithColor;
  134 -  return formatValue(ctx, obj, ctx.depth);
  135 -}
  136 -exports.inspect = inspect;
  137 -
  138 -
  139 -// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
  140 -inspect.colors = {
  141 -  'bold' : [1, 22],
  142 -  'italic' : [3, 23],
  143 -  'underline' : [4, 24],
  144 -  'inverse' : [7, 27],
  145 -  'white' : [37, 39],
  146 -  'grey' : [90, 39],
  147 -  'black' : [30, 39],
  148 -  'blue' : [34, 39],
  149 -  'cyan' : [36, 39],
  150 -  'green' : [32, 39],
  151 -  'magenta' : [35, 39],
  152 -  'red' : [31, 39],
  153 -  'yellow' : [33, 39]
  154 -};
  155 -
  156 -// Don't use 'blue' not visible on cmd.exe
  157 -inspect.styles = {
  158 -  'special': 'cyan',
  159 -  'number': 'yellow',
  160 -  'boolean': 'yellow',
  161 -  'undefined': 'grey',
  162 -  'null': 'bold',
  163 -  'string': 'green',
  164 -  'date': 'magenta',
  165 -  // "name": intentionally not styling
  166 -  'regexp': 'red'
  167 -};
  168 -
  169 -
  170 -function stylizeWithColor(str, styleType) {
  171 -  var style = inspect.styles[styleType];
  172 -
  173 -  if (style) {
  174 -    return '\u001b[' + inspect.colors[style][0] + 'm' + str +
  175 -           '\u001b[' + inspect.colors[style][1] + 'm';
  176 -  } else {
  177 -    return str;
  178 -  }
  179 -}
  180 -
  181 -
  182 -function stylizeNoColor(str, styleType) {
  183 -  return str;
  184 -}
  185 -
  186 -
  187 -function arrayToHash(array) {
  188 -  var hash = {};
  189 -
  190 -  array.forEach(function(val, idx) {
  191 -    hash[val] = true;
  192 -  });
  193 -
  194 -  return hash;
  195 -}
  196 -
  197 -
  198 -function formatValue(ctx, value, recurseTimes) {
  199 -  // Provide a hook for user-specified inspect functions.
  200 -  // Check that value is an object with an inspect function on it
  201 -  if (ctx.customInspect &&
  202 -      value &&
  203 -      isFunction(value.inspect) &&
  204 -      // Filter out the util module, it's inspect function is special
  205 -      value.inspect !== exports.inspect &&
  206 -      // Also filter out any prototype objects using the circular check.
  207 -      !(value.constructor && value.constructor.prototype === value)) {
  208 -    var ret = value.inspect(recurseTimes, ctx);
  209 -    if (!isString(ret)) {
  210 -      ret = formatValue(ctx, ret, recurseTimes);
  211 -    }
  212 -    return ret;
  213 -  }
  214 -
  215 -  // Primitive types cannot have properties
  216 -  var primitive = formatPrimitive(ctx, value);
  217 -  if (primitive) {
  218 -    return primitive;
  219 -  }
  220 -
  221 -  // Look up the keys of the object.
  222 -  var keys = Object.keys(value);
  223 -  var visibleKeys = arrayToHash(keys);
  224 -
  225 -  if (ctx.showHidden) {
  226 -    keys = Object.getOwnPropertyNames(value);
  227 -  }
  228 -
  229 -  // Some type of object without properties can be shortcutted.
  230 -  if (keys.length === 0) {
  231 -    if (isFunction(value)) {
  232 -      var name = value.name ? ': ' + value.name : '';
  233 -      return ctx.stylize('[Function' + name + ']', 'special');
  234 -    }
  235 -    if (isRegExp(value)) {
  236 -      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
  237 -    }
  238 -    if (isDate(value)) {
  239 -      return ctx.stylize(Date.prototype.toString.call(value), 'date');
  240 -    }
  241 -    if (isError(value)) {
  242 -      return formatError(value);
  243 -    }
  244 -  }
  245 -
  246 -  var base = '', array = false, braces = ['{', '}'];
  247 -
  248 -  // Make Array say that they are Array
  249 -  if (isArray(value)) {
  250 -    array = true;
  251 -    braces = ['[', ']'];
  252 -  }
  253 -
  254 -  // Make functions say that they are functions
  255 -  if (isFunction(value)) {
  256 -    var n = value.name ? ': ' + value.name : '';
  257 -    base = ' [Function' + n + ']';
  258 -  }
  259 -
  260 -  // Make RegExps say that they are RegExps
  261 -  if (isRegExp(value)) {
  262 -    base = ' ' + RegExp.prototype.toString.call(value);
  263 -  }
  264 -
  265 -  // Make dates with properties first say the date
  266 -  if (isDate(value)) {
  267 -    base = ' ' + Date.prototype.toUTCString.call(value);
  268 -  }
  269 -
  270 -  // Make error with message first say the error
  271 -  if (isError(value)) {
  272 -    base = ' ' + formatError(value);
  273 -  }
  274 -
  275 -  if (keys.length === 0 && (!array || value.length == 0)) {
  276 -    return braces[0] + base + braces[1];
  277 -  }
  278 -
  279 -  if (recurseTimes < 0) {
  280 -    if (isRegExp(value)) {
  281 -      return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
  282 -    } else {
  283 -      return ctx.stylize('[Object]', 'special');
  284 -    }
  285 -  }
  286 -
  287 -  ctx.seen.push(value);
  288 -
  289 -  var output;
  290 -  if (array) {
  291 -    output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
  292 -  } else {
  293 -    output = keys.map(function(key) {
  294 -      return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
  295 -    });
  296 -  }
  297 -
  298 -  ctx.seen.pop();
  299 -
  300 -  return reduceToSingleString(output, base, braces);
  301 -}
  302 -
  303 -
  304 -function formatPrimitive(ctx, value) {
  305 -  if (isUndefined(value))
  306 -    return ctx.stylize('undefined', 'undefined');
  307 -  if (isString(value)) {
  308 -    var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
  309 -                                             .replace(/'/g, "\\'")
  310 -                                             .replace(/\\"/g, '"') + '\'';
  311 -    return ctx.stylize(simple, 'string');
  312 -  }
  313 -  if (isNumber(value)) {
  314 -    // Format -0 as '-0'. Strict equality won't distinguish 0 from -0,
  315 -    // so instead we use the fact that 1 / -0 < 0 whereas 1 / 0 > 0 .
  316 -    if (value === 0 && 1 / value < 0)
  317 -      return ctx.stylize('-0', 'number');
  318 -    return ctx.stylize('' + value, 'number');
  319 -  }
  320 -  if (isBoolean(value))
  321 -    return ctx.stylize('' + value, 'boolean');
  322 -  // For some reason typeof null is "object", so special case here.
  323 -  if (isNull(value))
  324 -    return ctx.stylize('null', 'null');
  325 -}
  326 -
  327 -
  328 -function formatError(value) {
  329 -  return '[' + Error.prototype.toString.call(value) + ']';
  330 -}
  331 -
  332 -
  333 -function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
  334 -  var output = [];
  335 -  for (var i = 0, l = value.length; i < l; ++i) {
  336 -    if (hasOwnProperty(value, String(i))) {
  337 -      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
  338 -          String(i), true));
  339 -    } else {
  340 -      output.push('');
  341 -    }
  342 -  }
  343 -  keys.forEach(function(key) {
  344 -    if (!key.match(/^\d+$/)) {
  345 -      output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
  346 -          key, true));
  347 -    }
  348 -  });
  349 -  return output;
  350 -}
  351 -
  352 -
  353 -function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
  354 -  var name, str, desc;
  355 -  desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
  356 -  if (desc.get) {
  357 -    if (desc.set) {
  358 -      str = ctx.stylize('[Getter/Setter]', 'special');
  359 -    } else {
  360 -      str = ctx.stylize('[Getter]', 'special');
  361 -    }
  362 -  } else {
  363 -    if (desc.set) {
  364 -      str = ctx.stylize('[Setter]', 'special');
  365 -    }
  366 -  }
  367 -  if (!hasOwnProperty(visibleKeys, key)) {
  368 -    name = '[' + key + ']';
  369 -  }
  370 -  if (!str) {
  371 -    if (ctx.seen.indexOf(desc.value) < 0) {
  372 -      if (isNull(recurseTimes)) {
  373 -        str = formatValue(ctx, desc.value, null);
  374 -      } else {
  375 -        str = formatValue(ctx, desc.value, recurseTimes - 1);
  376 -      }
  377 -      if (str.indexOf('\n') > -1) {
  378 -        if (array) {
  379 -          str = str.split('\n').map(function(line) {
  380 -            return '  ' + line;
  381 -          }).join('\n').substr(2);
  382 -        } else {
  383 -          str = '\n' + str.split('\n').map(function(line) {
  384 -            return '   ' + line;
  385 -          }).join('\n');
  386 -        }
  387 -      }
  388 -    } else {
  389 -      str = ctx.stylize('[Circular]', 'special');
  390 -    }
  391 -  }
  392 -  if (isUndefined(name)) {
  393 -    if (array && key.match(/^\d+$/)) {
  394 -      return str;
  395 -    }
  396 -    name = JSON.stringify('' + key);
  397 -    if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
  398 -      name = name.substr(1, name.length - 2);
  399 -      name = ctx.stylize(name, 'name');
  400 -    } else {
  401 -      name = name.replace(/'/g, "\\'")
  402 -                 .replace(/\\"/g, '"')
  403 -                 .replace(/(^"|"$)/g, "'");
  404 -      name = ctx.stylize(name, 'string');
  405 -    }
  406 -  }
  407 -
  408 -  return name + ': ' + str;
  409 -}
  410 -
  411 -
  412 -function reduceToSingleString(output, base, braces) {
  413 -  var numLinesEst = 0;
  414 -  var length = output.reduce(function(prev, cur) {
  415 -    numLinesEst++;
  416 -    if (cur.indexOf('\n') >= 0) numLinesEst++;
  417 -    return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
  418 -  }, 0);
  419 -
  420 -  if (length > 60) {
  421 -    return braces[0] +
  422 -           (base === '' ? '' : base + '\n ') +
  423 -           ' ' +
  424 -           output.join(',\n  ') +
  425 -           ' ' +
  426 -           braces[1];
  427 -  }
  428 -
  429 -  return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
  430 -}
  431 -
  432 -
  433  // NOTE: These type checking functions intentionally don't use `instanceof`
  434  // because it is fragile and can be easily faked with `Object.create()`.
  435  function isArray(ar) {
  436 @@ -522,166 +98,10 @@ function isPrimitive(arg) {
  437  exports.isPrimitive = isPrimitive;
  438 
  439  function isBuffer(arg) {
  440 -  return arg instanceof Buffer;
  441 +  return Buffer.isBuffer(arg);
  442  }
  443  exports.isBuffer = isBuffer;
  444 
  445  function objectToString(o) {
  446    return Object.prototype.toString.call(o);
  447 -}
  448 -
  449 -
  450 -function pad(n) {
  451 -  return n < 10 ? '0' + n.toString(10) : n.toString(10);
  452 -}
  453 -
  454 -
  455 -var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
  456 -              'Oct', 'Nov', 'Dec'];
  457 -
  458 -// 26 Feb 16:19:34
  459 -function timestamp() {
  460 -  var d = new Date();
  461 -  var time = [pad(d.getHours()),
  462 -              pad(d.getMinutes()),
  463 -              pad(d.getSeconds())].join(':');
  464 -  return [d.getDate(), months[d.getMonth()], time].join(' ');
  465 -}
  466 -
  467 -
  468 -// log is just a thin wrapper to console.log that prepends a timestamp
  469 -exports.log = function() {
  470 -  console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
  471 -};
  472 -
  473 -
  474 -/**
  475 - * Inherit the prototype methods from one constructor into another.
  476 - *
  477 - * The Function.prototype.inherits from lang.js rewritten as a standalone
  478 - * function (not on Function.prototype). NOTE: If this file is to be loaded
  479 - * during bootstrapping this function needs to be rewritten using some native
  480 - * functions as prototype setup using normal JavaScript does not work as
  481 - * expected during bootstrapping (see mirror.js in r114903).
  482 - *
  483 - * @param {function} ctor Constructor function which needs to inherit the
  484 - *     prototype.
  485 - * @param {function} superCtor Constructor function to inherit prototype from.
  486 - */
  487 -exports.inherits = function(ctor, superCtor) {
  488 -  ctor.super_ = superCtor;
  489 -  ctor.prototype = Object.create(superCtor.prototype, {
  490 -    constructor: {
  491 -      value: ctor,
  492 -      enumerable: false,
  493 -      writable: true,
  494 -      configurable: true
  495 -    }
  496 -  });
  497 -};
  498 -
  499 -exports._extend = function(origin, add) {
  500 -  // Don't do anything if add isn't an object
  501 -  if (!add || !isObject(add)) return origin;
  502 -
  503 -  var keys = Object.keys(add);
  504 -  var i = keys.length;
  505 -  while (i--) {
  506 -    origin[keys[i]] = add[keys[i]];
  507 -  }
  508 -  return origin;
  509 -};
  510 -
  511 -function hasOwnProperty(obj, prop) {
  512 -  return Object.prototype.hasOwnProperty.call(obj, prop);
  513 -}
  514 -
  515 -
  516 -// Deprecated old stuff.
  517 -
  518 -exports.p = exports.deprecate(function() {
  519 -  for (var i = 0, len = arguments.length; i < len; ++i) {
  520 -    console.error(exports.inspect(arguments[i]));
  521 -  }
  522 -}, 'util.p: Use console.error() instead');
  523 -
  524 -
  525 -exports.exec = exports.deprecate(function() {
  526 -  return require('child_process').exec.apply(this, arguments);
  527 -}, 'util.exec is now called `child_process.exec`.');
  528 -
  529 -
  530 -exports.print = exports.deprecate(function() {
  531 -  for (var i = 0, len = arguments.length; i < len; ++i) {
  532 -    process.stdout.write(String(arguments[i]));
  533 -  }
  534 -}, 'util.print: Use console.log instead');
  535 -
  536 -
  537 -exports.puts = exports.deprecate(function() {
  538 -  for (var i = 0, len = arguments.length; i < len; ++i) {
  539 -    process.stdout.write(arguments[i] + '\n');
  540 -  }
  541 -}, 'util.puts: Use console.log instead');
  542 -
  543 -
  544 -exports.debug = exports.deprecate(function(x) {
  545 -  process.stderr.write('DEBUG: ' + x + '\n');
  546 -}, 'util.debug: Use console.error instead');
  547 -
  548 -
  549 -exports.error = exports.deprecate(function(x) {
  550 -  for (var i = 0, len = arguments.length; i < len; ++i) {
  551 -    process.stderr.write(arguments[i] + '\n');
  552 -  }
  553 -}, 'util.error: Use console.error instead');
  554 -
  555 -
  556 -exports.pump = exports.deprecate(function(readStream, writeStream, callback) {
  557 -  var callbackCalled = false;
  558 -
  559 -  function call(a, b, c) {
  560 -    if (callback && !callbackCalled) {
  561 -      callback(a, b, c);
  562 -      callbackCalled = true;
  563 -    }
  564 -  }
  565 -
  566 -  readStream.addListener('data', function(chunk) {
  567 -    if (writeStream.write(chunk) === false) readStream.pause();
  568 -  });
  569 -
  570 -  writeStream.addListener('drain', function() {
  571 -    readStream.resume();
  572 -  });
  573 -
  574 -  readStream.addListener('end', function() {
  575 -    writeStream.end();
  576 -  });
  577 -
  578 -  readStream.addListener('close', function() {
  579 -    call();
  580 -  });
  581 -
  582 -  readStream.addListener('error', function(err) {
  583 -    writeStream.end();
  584 -    call(err);
  585 -  });
  586 -
  587 -  writeStream.addListener('error', function(err) {
  588 -    readStream.destroy();
  589 -    call(err);
  590 -  });
  591 -}, 'util.pump(): Use readableStream.pipe() instead');
  592 -
  593 -
  594 -var uv;
  595 -exports._errnoException = function(err, syscall) {
  596 -  if (isUndefined(uv)) uv = process.binding('uv');
  597 -  var errname = uv.errname(err);
  598 -  var e = new Error(syscall + ' ' + errname);
  599 -  e.code = errname;
  600 -  e.errno = errname;
  601 -  e.syscall = syscall;
  602 -  return e;
  603 -};
  604 +}