Acme.BookStore.HttpApi.Host/node_modules/braces/index.js

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'use strict';

/**
 * Module dependencies
 */

var toRegex = require('to-regex');
var unique = require('array-unique');
var extend = require('extend-shallow');

/**
 * Local dependencies
 */

var compilers = require('./lib/compilers');
var parsers = require('./lib/parsers');
var Braces = require('./lib/braces');
var utils = require('./lib/utils');
var MAX_LENGTH = 1024 * 64;
var cache = {};

/**
 * Convert the given `braces` pattern into a regex-compatible string. By default, only one string is generated for every input string. Set `options.expand` to true to return an array of patterns (similar to Bash or minimatch. Before using `options.expand`, it's recommended that you read the [performance notes](#performance)).
 *
 * ```js
 * var braces = require('braces');
 * console.log(braces('{a,b,c}'));
 * //=> ['(a|b|c)']
 *
 * console.log(braces('{a,b,c}', {expand: true}));
 * //=> ['a', 'b', 'c']
 * ```
 * @param {String} `str`
 * @param {Object} `options`
 * @return {String}
 * @api public
 */

function braces(pattern, options) {
  var key = utils.createKey(String(pattern), options);
  var arr = [];

  var disabled = options && options.cache === false;
  if (!disabled && cache.hasOwnProperty(key)) {
    return cache[key];
  }

  if (Array.isArray(pattern)) {
    for (var i = 0; i < pattern.length; i++) {
      arr.push.apply(arr, braces.create(pattern[i], options));
    }
  } else {
    arr = braces.create(pattern, options);
  }

  if (options && options.nodupes === true) {
    arr = unique(arr);
  }

  if (!disabled) {