public/static/common/js/plugin/maxlength/bootstrap-maxlength.js

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/* ==========================================================
 * bootstrap-maxlength.js v1.4.2
 * 
 * Copyright (c) 2013 Maurizio Napoleoni; 
 *
 * Licensed under the terms of the MIT license.
 * See: https://github.com/mimo84/bootstrap-maxlength/blob/master/LICENSE
 * ========================================================== */
/*jslint browser:true*/
/*global  jQuery*/
(function ($) {
    "use strict";

    $.fn.extend({
        maxlength: function (options, callback) {

            var documentBody = $('body'),
                defaults = {
                    alwaysShow: false, // if true the indicator it's always shown.
                    threshold: 10, // Represents how many chars left are needed to show up the counter
                    warningClass: "label label-success",
                    limitReachedClass: "label label-important",
                    separator: ' / ',
                    preText: '',
                    postText: '',
                    showMaxLength : true,
                    placement: 'bottom',
                    showCharsTyped: true, // show the number of characters typed and not the number of characters remaining
                    validate: false, // if the browser doesn't support the maxlength attribute, attempt to type more than
                                                                        // the indicated chars, will be prevented.
                    utf8: false // counts using bytesize rather than length.  eg: '£' is counted as 2 characters.
                };

            if ($.isFunction(options) && !callback) {
                callback = options;
                options = {};
            }
            options = $.extend(defaults, options);

          /**
          * Return the length of the specified input.
          *
          * @param input
          * @return {number}
          */
            function inputLength(input) {
              var text = input.val();
              var matches = text.match(/\n/g);

              var breaks = 0;
              var inputLength = 0;

              if (options.utf8) {
                breaks = matches ? getUTF8Length(matches) : 0;
                inputLength = getUTF8Length(input.val()) + breaks;
              } else {
                breaks = matches ? matches.length : 0;
                inputLength = input.val().length + breaks;
              }
              return inputLength;