--- /dev/null
+// Underscore.string
+// (c) 2010 Esa-Matti Suuronen <esa-matti aet suuronen dot org>
+// Underscore.string is freely distributable under the terms of the MIT license.
+// Documentation: https://github.com/epeli/underscore.string
+// Some code is borrowed from MooTools and Alexandru Marasteanu.
+// Version '3.2.3'
+
+'use strict';
+
+function s(value) {
+ /* jshint validthis: true */
+ if (!(this instanceof s)) return new s(value);
+ this._wrapped = value;
+}
+
+s.VERSION = '3.2.3';
+
+s.isBlank = require('./isBlank');
+s.stripTags = require('./stripTags');
+s.capitalize = require('./capitalize');
+s.decapitalize = require('./decapitalize');
+s.chop = require('./chop');
+s.trim = require('./trim');
+s.clean = require('./clean');
+s.cleanDiacritics = require('./cleanDiacritics');
+s.count = require('./count');
+s.chars = require('./chars');
+s.swapCase = require('./swapCase');
+s.escapeHTML = require('./escapeHTML');
+s.unescapeHTML = require('./unescapeHTML');
+s.splice = require('./splice');
+s.insert = require('./insert');
+s.replaceAll = require('./replaceAll');
+s.include = require('./include');
+s.join = require('./join');
+s.lines = require('./lines');
+s.dedent = require('./dedent');
+s.reverse = require('./reverse');
+s.startsWith = require('./startsWith');
+s.endsWith = require('./endsWith');
+s.pred = require('./pred');
+s.succ = require('./succ');
+s.titleize = require('./titleize');
+s.camelize = require('./camelize');
+s.underscored = require('./underscored');
+s.dasherize = require('./dasherize');
+s.classify = require('./classify');
+s.humanize = require('./humanize');
+s.ltrim = require('./ltrim');
+s.rtrim = require('./rtrim');
+s.truncate = require('./truncate');
+s.prune = require('./prune');
+s.words = require('./words');
+s.pad = require('./pad');
+s.lpad = require('./lpad');
+s.rpad = require('./rpad');
+s.lrpad = require('./lrpad');
+s.sprintf = require('./sprintf');
+s.vsprintf = require('./vsprintf');
+s.toNumber = require('./toNumber');
+s.numberFormat = require('./numberFormat');
+s.strRight = require('./strRight');
+s.strRightBack = require('./strRightBack');
+s.strLeft = require('./strLeft');
+s.strLeftBack = require('./strLeftBack');
+s.toSentence = require('./toSentence');
+s.toSentenceSerial = require('./toSentenceSerial');
+s.slugify = require('./slugify');
+s.surround = require('./surround');
+s.quote = require('./quote');
+s.unquote = require('./unquote');
+s.repeat = require('./repeat');
+s.naturalCmp = require('./naturalCmp');
+s.levenshtein = require('./levenshtein');
+s.toBoolean = require('./toBoolean');
+s.exports = require('./exports');
+s.escapeRegExp = require('./helper/escapeRegExp');
+s.wrap = require('./wrap');
+s.map = require('./map');
+
+// Aliases
+s.strip = s.trim;
+s.lstrip = s.ltrim;
+s.rstrip = s.rtrim;
+s.center = s.lrpad;
+s.rjust = s.lpad;
+s.ljust = s.rpad;
+s.contains = s.include;
+s.q = s.quote;
+s.toBool = s.toBoolean;
+s.camelcase = s.camelize;
+s.mapChars = s.map;
+
+
+// Implement chaining
+s.prototype = {
+ value: function value() {
+ return this._wrapped;
+ }
+};
+
+function fn2method(key, fn) {
+ if (typeof fn !== "function") return;
+ s.prototype[key] = function() {
+ var args = [this._wrapped].concat(Array.prototype.slice.call(arguments));
+ var res = fn.apply(null, args);
+ // if the result is non-string stop the chain and return the value
+ return typeof res === 'string' ? new s(res) : res;
+ };
+}
+
+// Copy functions to instance methods for chaining
+for (var key in s) fn2method(key, s[key]);
+
+fn2method("tap", function tap(string, fn) {
+ return fn(string);
+});
+
+function prototype2method(methodName) {
+ fn2method(methodName, function(context) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ return String.prototype[methodName].apply(context, args);
+ });
+}
+
+var prototypeMethods = [
+ "toUpperCase",
+ "toLowerCase",
+ "split",
+ "replace",
+ "slice",
+ "substring",
+ "substr",
+ "concat"
+];
+
+for (var method in prototypeMethods) prototype2method(prototypeMethods[method]);
+
+
+module.exports = s;