lib/utilities.js
// Generated by CoffeeScript 1.9.3
(function() {
var Promise, _, pluralize, utilities;
_ = require('lodash');
pluralize = require('pluralize');
Promise = require('promise');
utilities = {
weakSeededShuffle: function(array, seed) {
var mutatableArray, result, rnd;
result = [];
mutatableArray = array.slice();
while (mutatableArray.length > 0) {
rnd = Math.floor(utilities.seededRandom(seed) * mutatableArray.length);
result.push(mutatableArray.splice(rnd, 1)[0]);
}
return result;
},
seededShuffle: function(array, seed) {
var i, j, len, ref, s;
ref = [101, 103, 107, 109, 113, 127, 131];
for (j = 0, len = ref.length; j < len; j++) {
i = ref[j];
s = parseInt(seed) + i;
array = utilities.weakSeededShuffle(array, s);
}
return array;
},
seededRandom: function(seed) {
var generatedNum, s;
s = parseInt(seed);
if (!s) {
return Math.random();
}
generatedNum = (s * 9301 + 49297) % 233280;
return generatedNum / 233280.0;
},
randomString: function(length) {
var max, min;
max = parseInt(new Array(length + 1).join('z'), 36);
min = parseInt((Math.pow(10, length - 1)).toString(), 36);
return Math.floor(Math.random() * (max - min) + min).toString(36);
},
currency: function(pence) {
return "£" + (Math.round(pence) / 100).toFixed(2);
},
isBlank: function(string) {
return string === "" || string === void 0 || string === null;
},
isPresent: function(string) {
return !isBlank(string);
},
promiseWhile: function(conditionFn, fn) {
return new Promise(function(resolve, reject) {
var promiseLoop;
promiseLoop = function(output) {
if (!conditionFn()) {
return resolve(output);
}
return fn().then(promiseLoop);
};
return process.nextTick(promiseLoop);
});
},
promiseEachFn: function(promiseFnArray) {
var firstPromiseFn, promise, promiseReturnArray;
promiseReturnArray = [];
if (promiseFnArray.length > 0) {
firstPromiseFn = promiseFnArray.shift();
promise = firstPromiseFn();
promiseReturnArray.push(promise);
} else {
promise = new Promise(function(resolve) {
return resolve();
});
}
_.each(promiseFnArray, (function(_this) {
return function(fn) {
promise = promise.then(fn);
return promiseReturnArray.push(promise);
};
})(this));
return Promise.all(promiseReturnArray);
},
promiseEach: function(promiseArray) {
var promise, promiseReturnArray;
promiseReturnArray = [];
if (promiseArray.length > 0) {
promise = promiseArray.shift();
promiseReturnArray.push(promise);
} else {
promise = new Promise(function(resolve) {
return resolve();
});
}
_.each(promiseArray, (function(_this) {
return function(p) {
promise = promise.then(function() {
return p;
});
return promiseReturnArray.push(promise);
};
})(this));
return Promise.all(promiseReturnArray);
},
queryStringToObject: function(querystring) {
var pairs, result;
pairs = querystring.replace('?', '').split('&');
result = {};
pairs.forEach(function(pair) {
pair = pair.split('=');
return result[pair[0]] = decodeURIComponent(pair[1] || '');
});
return result;
},
objectToQueryString: function(obj, prefix) {
var k, p, str, v;
str = [];
for (p in obj) {
if (obj.hasOwnProperty(p)) {
k = prefix ? prefix + '[' + p + ']' : p;
v = obj[p];
str.push(typeof v === 'object' ? this.objectToQueryString(v, k) : encodeURIComponent(k) + '=' + encodeURIComponent(v));
}
}
return str.join('&');
},
camelCase: function(str) {
return str.replace(/(?:^\w|[A-Z]|\b\w|_\w)/g, function(letter, index) {
if (index === 0) {
return letter.toLowerCase();
} else {
return letter.toUpperCase();
}
}).replace(/\s+|_/g, '');
},
plural: function(str) {
return pluralize(str);
},
pluralKebabCase: function(str) {
var kebabCaseStr, lastWord, match;
kebabCaseStr = _.kebabCase(str);
match = kebabCaseStr.match(/-(\w+)$/);
if (match) {
lastWord = match[1];
} else {
lastWord = kebabCaseStr;
}
return kebabCaseStr.replace(new RegExp(lastWord + '$'), pluralize(lastWord));
},
sanitisedString: function(str) {
if (str === '') {
throw new Error("Empty string");
}
return str = str.replace(/<(?:.|\n)*?>/gm, '').replace(/[\u0061\u24D0\uFF41\u1E9A\u00E0\u00E1\u00E2\u1EA7\u1EA5\u1EAB\u1EA9\u00E3\u0101\u0103\u1EB1\u1EAF\u1EB5\u1EB3\u0227\u01E1\u00E4\u01DF\u1EA3\u00E5\u01FB\u01CE\u0201\u0203\u1EA1\u1EAD\u1EB7\u1E01\u0105\u2C65\u0250\u0041\u24B6\uFF21\u00C0\u00C1\u00C2\u1EA6\u1EA4\u1EAA\u1EA8\u00C3\u0100\u0102\u1EB0\u1EAE\u1EB4\u1EB2\u0226\u01E0\u00C4\u01DE\u1EA2\u00C5\u01FA\u01CD\u0200\u0202\u1EA0\u1EAC\u1EB6\u1E00\u0104\u023A\u2C6F]/g, 'a').replace(/[\uA733\uA732]/g, 'aa').replace(/[\u00E6\u01FD\u01E3\u00C6\u01FC\u01E2]/g, 'ae').replace(/[\uA734\uA735]/g, 'ao').replace(/[\uA736\uA737]/g, 'au').replace(/[\uA738\uA73A\uA739\uA73B]/g, 'av').replace(/[\uA73C\uA73D]/g, 'ay').replace(/[\u0042\u24B7\uFF22\u1E02\u1E04\u1E06\u0243\u0182\u0181\u0062\u24D1\uFF42\u1E03\u1E05\u1E07\u0180\u0183\u0253]/g, 'b').replace(/[\u0043\u24B8\uFF23\u0106\u0108\u010A\u010C\u00C7\u1E08\u0187\u023B\uA73E\u0063\u24D2\uFF43\u0107\u0109\u010B\u010D\u00E7\u1E09\u0188\u023C\uA73F\u2184]/g, 'c').replace(/[\u0044\u24B9\uFF24\u1E0A\u010E\u1E0C\u1E10\u1E12\u1E0E\u0110\u018B\u018A\u0189\uA779\u0064\u24D3\uFF44\u1E0B\u010F\u1E0D\u1E11\u1E13\u1E0F\u0111\u018C\u0256\u0257\uA77A]/g, 'd').replace(/[\u01F2\u01C5\u01F1\u01C4\u01F3\u01C6]/g, 'dz').replace(/[\u0045\u24BA\uFF25\u00C8\u00C9\u00CA\u1EC0\u1EBE\u1EC4\u1EC2\u1EBC\u0112\u1E14\u1E16\u0114\u0116\u00CB\u1EBA\u011A\u0204\u0206\u1EB8\u1EC6\u0228\u1E1C\u0118\u1E18\u1E1A\u0190\u018E\u0065\u24D4\uFF45\u00E8\u00E9\u00EA\u1EC1\u1EBF\u1EC5\u1EC3\u1EBD\u0113\u1E15\u1E17\u0115\u0117\u00EB\u1EBB\u011B\u0205\u0207\u1EB9\u1EC7\u0229\u1E1D\u0119\u1E19\u1E1B\u0247\u025B\u01DD]/g, 'e').replace(/[\u0046\u24BB\uFF26\u1E1E\u0191\uA77B\u0066\u24D5\uFF46\u1E1F\u0192\uA77C]/g, 'f').replace(/[\u0047\u24BC\uFF27\u01F4\u011C\u1E20\u011E\u0120\u01E6\u0122\u01E4\u0193\uA7A0\uA77D\uA77E\u0067\u24D6\uFF47\u01F5\u011D\u1E21\u011F\u0121\u01E7\u0123\u01E5\u0260\uA7A1\u1D79\uA77F]/g, 'g').replace(/[\u0048\u24BD\uFF28\u0124\u1E22\u1E26\u021E\u1E24\u1E28\u1E2A\u0126\u2C67\u2C75\uA78D\u0068\u24D7\uFF48\u0125\u1E23\u1E27\u021F\u1E25\u1E29\u1E2B\u1E96\u0127\u2C68\u2C76\u0265]/g, 'h').replace(/[\u0195]/, 'hv').replace(/[\u0049\u24BE\uFF29\u00CC\u00CD\u00CE\u0128\u012A\u012C\u0130\u00CF\u1E2E\u1EC8\u01CF\u0208\u020A\u1ECA\u012E\u1E2C\u0197\u0069\u24D8\uFF49\u00EC\u00ED\u00EE\u0129\u012B\u012D\u00EF\u1E2F\u1EC9\u01D0\u0209\u020B\u1ECB\u012F\u1E2D\u0268\u0131]/g, 'i').replace(/[\u004A\u24BF\uFF2A\u0134\u0248\u006A\u24D9\uFF4A\u0135\u01F0\u0249]/g, 'j').replace(/[\u004B\u24C0\uFF2B\u1E30\u01E8\u1E32\u0136\u1E34\u0198\u2C69\uA740\uA742\uA744\uA7A2\u006B\u24DA\uFF4B\u1E31\u01E9\u1E33\u0137\u1E35\u0199\u2C6A\uA741\uA743\uA745\uA7A3]/g, 'k').replace(/[\u004C\u24C1\uFF2C\u013F\u0139\u013D\u1E36\u1E38\u013B\u1E3C\u1E3A\u0141\u023D\u2C62\u2C60\uA748\uA746\uA780\u006C\u24DB\uFF4C\u0140\u013A\u013E\u1E37\u1E39\u013C\u1E3D\u1E3B\u017F\u0142\u019A\u026B\u2C61\uA749\uA781\uA747]/g, 'l').replace(/[\u01C8\u01C7\u01C9]/g, 'lj').replace(/[\u004D\u24C2\uFF2D\u1E3E\u1E40\u1E42\u2C6E\u019C\u006D\u24DC\uFF4D\u1E3F\u1E41\u1E43\u0271\u026F]/g, 'm').replace(/[\u004E\u24C3\uFF2E\u01F8\u0143\u00D1\u1E44\u0147\u1E46\u0145\u1E4A\u1E48\u0220\u019D\uA790\uA7A4\u006E\u24DD\uFF4E\u01F9\u0144\u00F1\u1E45\u0148\u1E47\u0146\u1E4B\u1E49\u019E\u0272\u0149\uA791\uA7A5]/g, 'n').replace(/[\u01CA\u01CB\u01CC]/g, 'nj').replace(/[\u004F\u24C4\uFF2F\u00D2\u00D3\u00D4\u1ED2\u1ED0\u1ED6\u1ED4\u00D5\u1E4C\u022C\u1E4E\u014C\u1E50\u1E52\u014E\u022E\u0230\u00D6\u022A\u1ECE\u0150\u01D1\u020C\u020E\u01A0\u1EDC\u1EDA\u1EE0\u1EDE\u1EE2\u1ECC\u1ED8\u01EA\u01EC\u00D8\u01FE\u0186\u019F\uA74A\uA74C\u006F\u24DE\uFF4F\u00F2\u00F3\u00F4\u1ED3\u1ED1\u1ED7\u1ED5\u00F5\u1E4D\u022D\u1E4F\u014D\u1E51\u1E53\u014F\u022F\u0231\u00F6\u022B\u1ECF\u0151\u01D2\u020D\u020F\u01A1\u1EDD\u1EDB\u1EE1\u1EDF\u1EE3\u1ECD\u1ED9\u01EB\u01ED\u00F8\u01FF\u0254\uA74B\uA74D\u0275]/g, 'o').replace(/[\u01A2\u01A3]/g, 'oi').replace(/[\u0222\u0223]/g, 'ou').replace(/[\uA74E\uA74F]/g, 'oo').replace(/[\u008C\u0152\u009C\u0153]/g, 'oe').replace(/[\u0050\u24C5\uFF30\u1E54\u1E56\u01A4\u2C63\uA750\uA752\uA754\u0070\u24DF\uFF50\u1E55\u1E57\u01A5\u1D7D\uA751\uA753\uA755]/g, 'p').replace(/[\u0051\u24C6\uFF31\uA756\uA758\u024A\u0071\u24E0\uFF51\u024B\uA757\uA759]/g, 'q').replace(/[\u0052\u24C7\uFF32\u0154\u1E58\u0158\u0210\u0212\u1E5A\u1E5C\u0156\u1E5E\u024C\u2C64\uA75A\uA7A6\uA782\u0072\u24E1\uFF52\u0155\u1E59\u0159\u0211\u0213\u1E5B\u1E5D\u0157\u1E5F\u024D\u027D\uA75B\uA7A7\uA783]/g, 'r').replace(/[\u0053\u24C8\uFF33\u1E9E\u015A\u1E64\u015C\u1E60\u0160\u1E66\u1E62\u1E68\u0218\u015E\u2C7E\uA7A8\uA784\u0073\u24E2\uFF53\u00DF\u015B\u1E65\u015D\u1E61\u0161\u1E67\u1E63\u1E69\u0219\u015F\u023F\uA7A9\uA785\u1E9B]/g, 's').replace(/[\u0054\u24C9\uFF34\u1E6A\u0164\u1E6C\u021A\u0162\u1E70\u1E6E\u0166\u01AC\u01AE\u023E\uA786\u0074\u24E3\uFF54\u1E6B\u1E97\u0165\u1E6D\u021B\u0163\u1E71\u1E6F\u0167\u01AD\u0288\u2C66\uA787]/g, 't').replace(/[\uA728\uA729]/g, 'tz').replace(/[\u0055\u24CA\uFF35\u00D9\u00DA\u00DB\u0168\u1E78\u016A\u1E7A\u016C\u00DC\u01DB\u01D7\u01D5\u01D9\u1EE6\u016E\u0170\u01D3\u0214\u0216\u01AF\u1EEA\u1EE8\u1EEE\u1EEC\u1EF0\u1EE4\u1E72\u0172\u1E76\u1E74\u0244\u0075\u24E4\uFF55\u00F9\u00FA\u00FB\u0169\u1E79\u016B\u1E7B\u016D\u00FC\u01DC\u01D8\u01D6\u01DA\u1EE7\u016F\u0171\u01D4\u0215\u0217\u01B0\u1EEB\u1EE9\u1EEF\u1EED\u1EF1\u1EE5\u1E73\u0173\u1E77\u1E75\u0289]/g, 'u').replace(/[\u0056\u24CB\uFF36\u1E7C\u1E7E\u01B2\uA75E\u0245\u0076\u24E5\uFF56\u1E7D\u1E7F\u028B\uA75F\u028C]/g, 'v').replace(/[\uA760\uA761]/g, 'vy').replace(/[\u0057\u24CC\uFF37\u1E80\u1E82\u0174\u1E86\u1E84\u1E88\u2C72\u0077\u24E6\uFF57\u1E81\u1E83\u0175\u1E87\u1E85\u1E98\u1E89\u2C73]/g, 'w').replace(/[\u0058\u24CD\uFF38\u1E8A\u1E8C\u0078\u24E7\uFF58\u1E8B\u1E8D]/g, 'x').replace(/[\u0059\u24CE\uFF39\u1EF2\u00DD\u0176\u1EF8\u0232\u1E8E\u0178\u1EF6\u1EF4\u01B3\u024E\u1EFE\u0079\u24E8\uFF59\u1EF3\u00FD\u0177\u1EF9\u0233\u1E8F\u00FF\u1EF7\u1E99\u1EF5\u01B4\u024F\u1EFF]/g, 'y').replace(/[\u005A\u24CF\uFF3A\u0179\u1E90\u017B\u017D\u1E92\u1E94\u01B5\u0224\u2C7F\u2C6B\uA762\u007A\u24E9\uFF5A\u017A\u1E91\u017C\u017E\u1E93\u1E95\u01B6\u0225\u0240\u2C6C\uA763]/g, 'z').replace(/'/g, '');
},
urlString: function(str) {
if (str === '') {
throw new Error("Empty string");
}
str = utilities.sanitisedString(str).replace(/\%/g, 'percent').replace(/\£/g, 'pounds').replace(/\$/g, 'dollars').replace(/&|\+/g, 'and').replace(/[^a-z0-9_]+/g, '-').replace(/^-|-$/g, '').toLowerCase();
return str;
}
};
module.exports = utilities;
}).call(this);