text: /**
   * Module dependencies.
   */
  
  var tty = require('tty');
  var util = require('util');
  
  /**
   * This is the Node.js implementation of `debug()`.
   *
   * Expose `debug()` as the module.
   */
  
  exports = module.exports = require('./debug');
  exports.init = init;
  exports.log = log;
  exports.formatArgs = formatArgs;
  exports.save = save;
  exports.load = load;
  exports.useColors = useColors;
  
  /**
   * Colors.
   */
  
  exports.colors = [6, 2, 3, 4, 5, 1];
  
  try {
  	var supportsColor = require('supports-color');
  	if (supportsColor && supportsColor.level >= 2) {
  		exports.colors = [
  			20, 21, 26, 27, 32, 33, 38, 39, 40, 41, 42, 43, 44, 45, 56, 57, 62, 63, 68,
  			69, 74, 75, 76, 77, 78, 79, 80, 81, 92, 93, 98, 99, 112, 113, 128, 129, 134,
  			135, 148, 149, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171,
  			172, 173, 178, 179, 184, 185, 196, 197, 198, 199, 200, 201, 202, 203, 204,
  			205, 206, 207, 208, 209, 214, 215, 220, 221
  		];
  	}
  } catch (err) {
  	// swallow - we only care if `supports-color` is available; it doesn't have to be.
  }
  
  /**
   * Build up the default `inspectOpts` object from the environment variables.
   *
   *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
   */
  
  exports.inspectOpts = Object.keys(process.env).filter(function (key) {
  	return /^debug_/i.test(key);
  }).reduce(function (obj, key) {
  	// camel-case
  	var prop = key
  		.substring(6)
  		.toLowerCase()
  		.replace(/_([a-z])/g, function (_, k) { return k.toUpperCase() });
  
  	// coerce string value into JS value
  	var val = process.env[key];
  	if (/^(yes|on|true|enabled)$/i.test(val)) val = true;
  	else if (/^(no|off|false|disabled)$/i.test(val)) val = false;
  	else if (val === 'null') val = null;
  	else val = Number(val);
  
  	obj[prop] = val;
  	return obj;
  }, {});
  
  /**
   * Is stdout a TTY? Colored output is enabled when `true`.
   */
  
  function useColors() {
  	return 'colors' in exports.inspectOpts
  		? Boolean(exports.inspectOpts.colors)
  		: tty.isatty(process.stderr.fd);
  }
  
  /**
   * Map %o to `util.inspect()`, all on a single line.
   */
  
  exports.formatters.o = function (v) {
  	this.inspectOpts.colors = this.useColors;
  	return util.inspect(v, this.inspectOpts)
  		.split('\n').map(function (str) {
  			return str.trim()
  		}).join(' ');
  };
  
  /**
   * Map %o to `util.inspect()`, allowing multiple lines if needed.
   */
  
  exports.formatters.O = function (v) {
  	this.inspectOpts.colors = this.useColors;
  	return util.inspect(v, this.inspectOpts);
  };
  
  /**
   * Adds ANSI color escape codes if enabled.
   *
   * @api public
   */
  
  function formatArgs(args) {
  	var name = this.namespace;
  	var useColors = this.useColors;
  
  	if (useColors) {
  		var c = this.color;
  		var colorCode = '\u001b[3' + (c < 8 ? c : '8;5;' + c);
  		var prefix = '  ' + colorCode + ';1m' + name + ' ' + '\u001b[0m';
  
  		args[0] = prefix + args[0].split('\n').join('\n' + prefix);
  		args.push(colorCode + 'm+' + exports.humanize(this.diff) + '\u001b[0m');
  	} else {
  		args[0] = getDate() + name + ' ' + args[0];
  	}
  }
  
  function getDate() {
  	if (exports.inspectOpts.hideDate) {
  		return '';
  	} else {
  		return new Date().toISOString() + ' ';
  	}
  }
  
  /**
   * Invokes `util.format()` with the specified arguments and writes to stderr.
   */
  
  function log() {
  	return process.stderr.write(util.format.apply(util, arguments) + '\n');
  }
  
  /**
   * Save `namespaces`.
   *
   * @param {String} namespaces
   * @api private
   */
  
  function save(namespaces) {
  	if (null == namespaces) {
  		// If you set a process.env field to null or undefined, it gets cast to the
  		// string 'null' or 'undefined'. Just delete instead.
  		delete process.env.DEBUG;
  	} else {
  		process.env.DEBUG = namespaces;
  	}
  }
  
  /**
   * Load `namespaces`.
   *
   * @return {String} returns the previously persisted debug modes
   * @api private
   */
  
  function load() {
  	return process.env.DEBUG;
  }
  
  /**
   * Init logic for `debug` instances.
   *
   * Create a new `inspectOpts` object in case `useColors` is set
   * differently for a particular `debug` instance.
   */
  
  function init(debug) {
  	debug.inspectOpts = {};
  
  	var keys = Object.keys(exports.inspectOpts);
  	for (var i = 0; i < keys.length; i++) {
  		debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
  	}
  }
  
  /**
   * Enable namespaces listed in `process.env.DEBUG` initially.
   */
  
  exports.enable(load());
  