text: /*!
   * # Fomantic-UI - Form Validation
   * http://github.com/fomantic/Fomantic-UI/
   *
   *
   * Released under the MIT license
   * http://opensource.org/licenses/MIT
   *
   */
  
  ;(function ($, window, document, undefined) {
  
  'use strict';
  
  $.isFunction = $.isFunction || function(obj) {
    return typeof obj === "function" && typeof obj.nodeType !== "number";
  };
  
  window = (typeof window != 'undefined' && window.Math == Math)
    ? window
    : (typeof self != 'undefined' && self.Math == Math)
      ? self
      : Function('return this')()
  ;
  
  $.fn.form = function(parameters) {
    var
      $allModules      = $(this),
      moduleSelector   = $allModules.selector || '',
  
      time             = new Date().getTime(),
      performance      = [],
  
      query            = arguments[0],
      legacyParameters = arguments[1],
      methodInvoked    = (typeof query == 'string'),
      queryArguments   = [].slice.call(arguments, 1),
      returnedValue
    ;
    $allModules
      .each(function() {
        var
          $module     = $(this),
          element     = this,
  
          formErrors  = [],
          keyHeldDown = false,
  
          // set at run-time
          $field,
          $group,
          $message,
          $prompt,
          $submit,
          $clear,
          $reset,
  
          settings,
          validation,
  
          metadata,
          selector,
          className,
          regExp,
          error,
  
          namespace,
          moduleNamespace,
          eventNamespace,
  
          submitting = false,
          dirty = false,
          history = ['clean', 'clean'],
  
          instance,
          module
        ;
  
        module      = {
  
          initialize: function() {
  
            // settings grabbed at run time
            module.get.settings();
            if(methodInvoked) {
              if(instance === undefined) {
                module.instantiate();
              }
              module.invoke(query);
            }
            else {
              if(instance !== undefined) {
                instance.invoke('destroy');
                module.refresh();
              }
              module.verbose('Initializing form validation', $module, settings);
              module.bindEvents();
              module.set.defaults();
              if (settings.autoCheckRequired) {
                module.set.autoCheck();
              }
              module.instantiate();
            }
          },
  
          instantiate: function() {
            module.verbose('Storing instance of module', module);
            instance = module;
            $module
              .data(moduleNamespace, module)
            ;
          },
  
          destroy: function() {
            module.verbose('Destroying previous module', instance);
            module.removeEvents();
            $module
              .removeData(moduleNamespace)
            ;
          },
  
          refresh: function() {
            module.verbose('Refreshing selector cache');
            $field      = $module.find(selector.field);
            $group      = $module.find(selector.group);
            $message    = $module.find(selector.message);
            $prompt     = $module.find(selector.prompt);
  
            $submit     = $module.find(selector.submit);
            $clear      = $module.find(selector.clear);
            $reset      = $module.find(selector.reset);
          },
  
          submit: function() {
            module.verbose('Submitting form', $module);
            submitting = true;
            $module.submit();
          },
  
          attachEvents: function(selector, action) {
            action = action || 'submit';
            $(selector).on('click' + eventNamespace, function(event) {
              module[action]();
              event.preventDefault();
            });
          },
  
          bindEvents: function() {
            module.verbose('Attaching form events');
            $module
              .on('submit' + eventNamespace, module.validate.form)
              .on('blur'   + eventNamespace, selector.field, module.event.field.blur)
              .on('click'  + eventNamespace, selector.submit, module.submit)
              .on('click'  + eventNamespace, selector.reset, module.reset)
              .on('click'  + eventNamespace, selector.clear, module.clear)
            ;
            if(settings.keyboardShortcuts) {
              $module.on('keydown' + eventNamespace, selector.field, module.event.field.keydown);
            }
            $field.each(function(index, el) {
              var
                $input     = $(el),
                type       = $input.prop('type'),
                inputEvent = module.get.changeEvent(type, $input)
              ;
              $input.on(inputEvent + eventNamespace, module.event.field.change);
            });
  
            // Dirty events
            if (settings.preventLeaving) {
              $(window).on('beforeunload' + eventNamespace, module.event.beforeUnload);
            }
  
            $field.on('change click keyup keydown blur', function(e) {
              $(this).triggerHandler(e.type + ".dirty");
            });
  
            $field.on('change.dirty click.dirty keyup.dirty keydown.dirty blur.dirty', module.determine.isDirty);
  
            $module.on('dirty' + eventNamespace, function(e) {
              settings.onDirty.call();
            });
  
            $module.on('clean' + eventNamespace, function(e) {
              settings.onClean.call();
            })
          },
  
          clear: function() {
            $field.each(function (index, el) {
              var
                $field       = $(el),
                $element     = $field.parent(),
                $fieldGroup  = $field.closest($group),
                $prompt      = $fieldGroup.find(selector.prompt),
                $calendar    = $field.closest(selector.uiCalendar),
                defaultValue = $field.data(metadata.defaultValue) || '',
                isCheckbox   = $element.is(selector.uiCheckbox),
                isDropdown   = $element.is(selector.uiDropdown)  && module.can.useElement('dropdown'),
                isCalendar   = ($calendar.length > 0  && module.can.useElement('calendar')),
                isErrored    = $fieldGroup.hasClass(className.error)
              ;
              if(isErrored) {
                module.verbose('Resetting error on field', $fieldGroup);
                $fieldGroup.removeClass(className.error);
                $prompt.remove();
              }
              if(isDropdown) {
                module.verbose('Resetting dropdown value', $element, defaultValue);
                $element.dropdown('clear', true);
              }
              else if(isCheckbox) {
                $field.prop('checked', false);
              }
              else if (isCalendar) {
                $calendar.calendar('clear');
              }
              else {
                module.verbose('Resetting field value', $field, defaultValue);
                $field.val('');
              }
            });
            module.remove.states();
          },
  
          reset: function() {
            $field.each(function (index, el) {
              var
                $field       = $(el),
                $element     = $field.parent(),
                $fieldGroup  = $field.closest($group),
                $calendar    = $field.closest(selector.uiCalendar),
                $prompt      = $fieldGroup.find(selector.prompt),
                defaultValue = $field.data(metadata.defaultValue),
                isCheckbox   = $element.is(selector.uiCheckbox),
                isDropdown   = $element.is(selector.uiDropdown)  && module.can.useElement('dropdown'),
                isCalendar   = ($calendar.length > 0  && module.can.useElement('calendar')),
                isErrored    = $fieldGroup.hasClass(className.error)
              ;
              if(defaultValue === undefined) {
                return;
              }
              if(isErrored) {
                module.verbose('Resetting error on field', $fieldGroup);
                $fieldGroup.removeClass(className.error);
                $prompt.remove();
              }
              if(isDropdown) {
                module.verbose('Resetting dropdown value', $element, defaultValue);
                $element.dropdown('restore defaults', true);
              }
              else if(isCheckbox) {
                module.verbose('Resetting checkbox value', $element, defaultValue);
                $field.prop('checked', defaultValue);
              }
              else if (isCalendar) {
                $calendar.calendar('set date', defaultValue);
              }
              else {
                module.verbose('Resetting field value', $field, defaultValue);
                $field.val(defaultValue);
              }
            });
            module.remove.states();
          },
  
          determine: {
            isValid: function() {
              var
                allValid = true
              ;
              $.each(validation, function(fieldName, field) {
                if( !( module.validate.field(field, fieldName, true) ) ) {
                  allValid = false;
                }
              });
              return allValid;
            },
            isDirty: function(e) {
              var formIsDirty = false;
  
              $field.each(function(index, el) {
                var
                  $el = $(el),
                  isCheckbox = ($el.filter(selector.checkbox).length > 0),
                  isDirty
                ;
  
                if (isCheckbox) {
                  isDirty = module.is.checkboxDirty($el);
                } else {
                  isDirty = module.is.fieldDirty($el);
                }
  
                $el.data(settings.metadata.isDirty, isDirty);
  
                formIsDirty |= isDirty;
              });
  
              if (formIsDirty) {
                module.set.dirty();
              } else {
                module.set.clean();
              }
  
              if (e && e.namespace === 'dirty') {
                e.stopImmediatePropagation();
                e.preventDefault();
              }
            }
          },
  
          is: {
            bracketedRule: function(rule) {
              return (rule.type && rule.type.match(settings.regExp.bracket));
            },
            // duck type rule test
            shorthandRules: function(rules) {
              return (typeof rules == 'string' || Array.isArray(rules));
            },
            empty: function($field) {
              if(!$field || $field.length === 0) {
                return true;
              }
              else if($field.is(selector.checkbox)) {
                return !$field.is(':checked');
              }
              else {
                return module.is.blank($field);
              }
            },
            blank: function($field) {
              return String($field.val()).trim() === '';
            },
            valid: function(field, showErrors) {
              var
                allValid = true
              ;
              if(field) {
                module.verbose('Checking if field is valid', field);
                return module.validate.field(validation[field], field, !!showErrors);
              }
              else {
                module.verbose('Checking if form is valid');
                $.each(validation, function(fieldName, field) {
                  if( !module.is.valid(fieldName, showErrors) ) {
                    allValid = false;
                  }
                });
                return allValid;
              }
            },
            dirty: function() {
              return dirty;
            },
            clean: function() {
              return !dirty;
            },
            fieldDirty: function($el) {
              var initialValue = $el.data(metadata.defaultValue);
              // Explicitly check for null/undefined here as value may be `false`, so ($el.data(dataInitialValue) || '') would not work
              if (initialValue == null) { initialValue = ''; }
              else if(Array.isArray(initialValue)) {
                initialValue = initialValue.toString();
              }
              var currentValue = $el.val();
              if (currentValue == null) { currentValue = ''; }
              // multiple select values are returned as arrays which are never equal, so do string conversion first
              else if(Array.isArray(currentValue)) {
                currentValue = currentValue.toString();
              }
              // Boolean values can be encoded as "true/false" or "True/False" depending on underlying frameworks so we need a case insensitive comparison
              var boolRegex = /^(true|false)$/i;
              var isBoolValue = boolRegex.test(initialValue) && boolRegex.test(currentValue);
              if (isBoolValue) {
                var regex = new RegExp("^" + initialValue + "$", "i");
                return !regex.test(currentValue);
              }
  
              return currentValue !== initialValue;
            },
            checkboxDirty: function($el) {
              var initialValue = $el.data(metadata.defaultValue);
              var currentValue = $el.is(":checked");
  
              return initialValue !== currentValue;
            },
            justDirty: function() {
              return (history[0] === 'dirty');
            },
            justClean: function() {
              return (history[0] === 'clean');
            }
          },
  
          removeEvents: function() {
            $module.off(eventNamespace);
            $field.off(eventNamespace);
            $submit.off(eventNamespace);
            $field.off(eventNamespace);
          },
  
          event: {
            field: {
              keydown: function(event) {
                var
                  $field       = $(this),
                  key          = event.which,
                  isInput      = $field.is(selector.input),
                  isCheckbox   = $field.is(selector.checkbox),
                  isInDropdown = ($field.closest(selector.uiDropdown).length > 0),
                  keyCode      = {
                    enter  : 13,
                    escape : 27
                  }
                ;
                if( key == keyCode.escape) {
                  module.verbose('Escape key pressed blurring field');
                  $field[0]
                    .blur()
                  ;
                }
                if(!event.ctrlKey && key == keyCode.enter && isInput && !isInDropdown && !isCheckbox) {
                  if(!keyHeldDown) {
                    $field.one('keyup' + eventNamespace, module.event.field.keyup);
                    module.submit();
                    module.debug('Enter pressed on input submitting form');
                  }
                  keyHeldDown = true;
                }
              },
              keyup: function() {
                keyHeldDown = false;
              },
              blur: function(event) {
                var
                  $field          = $(this),
                  $fieldGroup     = $field.closest($group),
                  validationRules = module.get.validation($field)
                ;
                if(validationRules && (settings.on == 'blur' || ( $fieldGroup.hasClass(className.error) && settings.revalidate) )) {
                  module.debug('Revalidating field', $field, validationRules);
                  module.validate.field( validationRules );
                  if(!settings.inline) {
                    module.validate.form(false,true);
                  }
                }
              },
              change: function(event) {
                var
                  $field      = $(this),
                  $fieldGroup = $field.closest($group),
                  validationRules = module.get.validation($field)
                ;
                if(validationRules && (settings.on == 'change' || ( $fieldGroup.hasClass(className.error) && settings.revalidate) )) {
                  clearTimeout(module.timer);
                  module.timer = setTimeout(function() {
                    module.debug('Revalidating field', $field, validationRules);
                    module.validate.field( validationRules );
                    if(!settings.inline) {
                      module.validate.form(false,true);
                    }
                  }, settings.delay);
                }
              }
            },
            beforeUnload: function(event) {
              if (module.is.dirty() && !submitting) {
                var event = event || window.event;
  
                // For modern browsers
                if (event) {
                  event.returnValue = settings.text.leavingMessage;
                }
  
                // For olders...
                return settings.text.leavingMessage;
              }
            }
  
          },
  
          get: {
            ancillaryValue: function(rule) {
              if(!rule.type || (!rule.value && !module.is.bracketedRule(rule))) {
                return false;
              }
              return (rule.value !== undefined)
                ? rule.value
                : rule.type.match(settings.regExp.bracket)[1] + ''
              ;
            },
            ruleName: function(rule) {
              if( module.is.bracketedRule(rule) ) {
                return rule.type.replace(rule.type.match(settings.regExp.bracket)[0], '');
              }
              return rule.type;
            },
            changeEvent: function(type, $input) {
              if(type == 'checkbox' || type == 'radio' || type == 'hidden' || $input.is('select')) {
                return 'change';
              }
              else {
                return module.get.inputEvent();
              }
            },
            inputEvent: function() {
              return (document.createElement('input').oninput !== undefined)
                ? 'input'
                : (document.createElement('input').onpropertychange !== undefined)
                  ? 'propertychange'
                  : 'keyup'
              ;
            },
            fieldsFromShorthand: function(fields) {
              var
                fullFields = {}
              ;
              $.each(fields, function(name, rules) {
                if (!Array.isArray(rules) && typeof rules === 'object') {
                  fullFields[name] = rules;
                } else {
                  if (typeof rules == 'string') {
                    rules = [rules];
                  }
                  fullFields[name] = {
                    rules: []
                  };
                  $.each(rules, function (index, rule) {
                    fullFields[name].rules.push({type: rule});
                  });
                }
              });
              return fullFields;
            },
            prompt: function(rule, field) {
              var
                ruleName      = module.get.ruleName(rule),
                ancillary     = module.get.ancillaryValue(rule),
                $field        = module.get.field(field.identifier),
                value         = $field.val(),
                prompt        = $.isFunction(rule.prompt)
                  ? rule.prompt(value)
                  : rule.prompt || settings.prompt[ruleName] || settings.text.unspecifiedRule,
                requiresValue = (prompt.search('{value}') !== -1),
                requiresName  = (prompt.search('{name}') !== -1),
                $label,
                name,
                parts,
                suffixPrompt
              ;
              if(ancillary && ancillary.indexOf('..') >= 0) {
                parts = ancillary.split('..', 2);
                if(!rule.prompt) {
                  suffixPrompt = (
                      parts[0] === '' ? settings.prompt.maxValue.replace(/\{ruleValue\}/g,'{max}') :
                      parts[1] === '' ? settings.prompt.minValue.replace(/\{ruleValue\}/g,'{min}') :
                      settings.prompt.range
                  );
                  prompt += suffixPrompt.replace(/\{name\}/g, ' ' + settings.text.and);
                }
                prompt = prompt.replace(/\{min\}/g, parts[0]);
                prompt = prompt.replace(/\{max\}/g, parts[1]);
              }
              if(requiresValue) {
                prompt = prompt.replace(/\{value\}/g, $field.val());
              }
              if(requiresName) {
                $label = $field.closest(selector.group).find('label').eq(0);
                name = ($label.length == 1)
                  ? $label.text()
                  : $field.prop('placeholder') || settings.text.unspecifiedField
                ;
                prompt = prompt.replace(/\{name\}/g, name);
              }
              prompt = prompt.replace(/\{identifier\}/g, field.identifier);
              prompt = prompt.replace(/\{ruleValue\}/g, ancillary);
              if(!rule.prompt) {
                module.verbose('Using default validation prompt for type', prompt, ruleName);
              }
              return prompt;
            },
            settings: function() {
              if($.isPlainObject(parameters)) {
                var
                  keys     = Object.keys(parameters),
                  isLegacySettings = (keys.length > 0)
                    ? (parameters[keys[0]].identifier !== undefined && parameters[keys[0]].rules !== undefined)
                    : false
                ;
                if(isLegacySettings) {
                  // 1.x (ducktyped)
                  settings   = $.extend(true, {}, $.fn.form.settings, legacyParameters);
                  validation = $.extend({}, $.fn.form.settings.defaults, parameters);
                  module.error(settings.error.oldSyntax, element);
                  module.verbose('Extending settings from legacy parameters', validation, settings);
                }
                else {
                  // 2.x
                  if(parameters.fields) {
                    parameters.fields = module.get.fieldsFromShorthand(parameters.fields);
                  }
                  settings   = $.extend(true, {}, $.fn.form.settings, parameters);
                  validation = $.extend({}, $.fn.form.settings.defaults, settings.fields);
                  module.verbose('Extending settings', validation, settings);
                }
              }
              else {
                settings   = $.fn.form.settings;
                validation = $.fn.form.settings.defaults;
                module.verbose('Using default form validation', validation, settings);
              }
  
              // shorthand
              namespace       = settings.namespace;
              metadata        = settings.metadata;
              selector        = settings.selector;
              className       = settings.className;
              regExp          = settings.regExp;
              error           = settings.error;
              moduleNamespace = 'module-' + namespace;
              eventNamespace  = '.' + namespace;
  
              // grab instance
              instance = $module.data(moduleNamespace);
  
              // refresh selector cache
              (instance || module).refresh();
            },
            field: function(identifier) {
              module.verbose('Finding field with identifier', identifier);
              identifier = module.escape.string(identifier);
              var t;
              if((t=$field.filter('#' + identifier)).length > 0 ) {
                return t;
              }
              if((t=$field.filter('[name="' + identifier +'"]')).length > 0 ) {
                return t;
              }
              if((t=$field.filter('[name="' + identifier +'[]"]')).length > 0 ) {
                return t;
              }
              if((t=$field.filter('[data-' + metadata.validate + '="'+ identifier +'"]')).length > 0 ) {
                return t;
              }
              return $('<input/>');
            },
            fields: function(fields) {
              var
                $fields = $()
              ;
              $.each(fields, function(index, name) {
                $fields = $fields.add( module.get.field(name) );
              });
              return $fields;
            },
            validation: function($field) {
              var
                fieldValidation,
                identifier
              ;
              if(!validation) {
                return false;
              }
              $.each(validation, function(fieldName, field) {
                identifier = field.identifier || fieldName;
                $.each(module.get.field(identifier), function(index, groupField) {
                  if(groupField == $field[0]) {
                    field.identifier = identifier;
                    fieldValidation = field;
                    return false;
                  }
                });
              });
              return fieldValidation || false;
            },
            value: function (field) {
              var
                fields = [],
                results
              ;
              fields.push(field);
              results = module.get.values.call(element, fields);
              return results[field];
            },
            values: function (fields) {
              var
                $fields = Array.isArray(fields)
                  ? module.get.fields(fields)
                  : $field,
                values = {}
              ;
              $fields.each(function(index, field) {
                var
                  $field       = $(field),
                  $calendar    = $field.closest(selector.uiCalendar),
                  name         = $field.prop('name'),
                  value        = $field.val(),
                  isCheckbox   = $field.is(selector.checkbox),
                  isRadio      = $field.is(selector.radio),
                  isMultiple   = (name.indexOf('[]') !== -1),
                  isCalendar   = ($calendar.length > 0  && module.can.useElement('calendar')),
                  isChecked    = (isCheckbox)
                    ? $field.is(':checked')
                    : false
                ;
                if(name) {
                  if(isMultiple) {
                    name = name.replace('[]', '');
                    if(!values[name]) {
                      values[name] = [];
                    }
                    if(isCheckbox) {
                      if(isChecked) {
                        values[name].push(value || true);
                      }
                      else {
                        values[name].push(false);
                      }
                    }
                    else {
                      values[name].push(value);
                    }
                  }
                  else {
                    if(isRadio) {
                      if(values[name] === undefined || values[name] === false) {
                        values[name] = (isChecked)
                          ? value || true
                          : false
                        ;
                      }
                    }
                    else if(isCheckbox) {
                      if(isChecked) {
                        values[name] = value || true;
                      }
                      else {
                        values[name] = false;
                      }
                    }
                    else if(isCalendar) {
                      var date = $calendar.calendar('get date');
  
                      if (date !== null) {
                        if (settings.dateHandling == 'date') {
                          values[name] = date;
                        } else if(settings.dateHandling == 'input') {
                          values[name] = $calendar.calendar('get input date')
                        } else if (settings.dateHandling == 'formatter') {
                          var type = $calendar.calendar('setting', 'type');
  
                          switch(type) {
                            case 'date':
                            values[name] = settings.formatter.date(date);
                            break;
  
                            case 'datetime':
                            values[name] = settings.formatter.datetime(date);
                            break;
  
                            case 'time':
                            values[name] = settings.formatter.time(date);
                            break;
  
                            case 'month':
                            values[name] = settings.formatter.month(date);
                            break;
  
                            case 'year':
                            values[name] = settings.formatter.year(date);
                            break;
  
                            default:
                            module.debug('Wrong calendar mode', $calendar, type);
                            values[name] = '';
                          }
                        }
                      } else {
                        values[name] = '';
                      }
                    } else {
                      values[name] = value;
                    }
                  }
                }
              });
              return values;
            },
            dirtyFields: function() {
              return $field.filter(function(index, e) {
                return $(e).data(metadata.isDirty);
              });
            }
          },
  
          has: {
  
            field: function(identifier) {
              module.verbose('Checking for existence of a field with identifier', identifier);
              identifier = module.escape.string(identifier);
              if(typeof identifier !== 'string') {
                module.error(error.identifier, identifier);
              }
              if($field.filter('#' + identifier).length > 0 ) {
                return true;
              }
              else if( $field.filter('[name="' + identifier +'"]').length > 0 ) {
                return true;
              }
              else if( $field.filter('[data-' + metadata.validate + '="'+ identifier +'"]').length > 0 ) {
                return true;
              }
              return false;
            }
  
          },
  
          can: {
              useElement: function(element){
                 if ($.fn[element] !== undefined) {
                     return true;
                 }
                 module.error(error.noElement.replace('{element}',element));
                 return false;
              }
          },
  
          escape: {
            string: function(text) {
              text =  String(text);
              return text.replace(regExp.escape, '\\$&');
            }
          },
  
          add: {
            // alias
            rule: function(name, rules) {
              module.add.field(name, rules);
            },
            field: function(name, rules) {
              // Validation should have at least a standard format
              if(validation[name] === undefined || validation[name].rules === undefined) {
                validation[name] = {
                  rules: []
                };
              }
              var
                newValidation = {
                  rules: []
                }
              ;
              if(module.is.shorthandRules(rules)) {
                rules = Array.isArray(rules)
                  ? rules
                  : [rules]
                ;
                $.each(rules, function(_index, rule) {
                  newValidation.rules.push({ type: rule });
                });
              }
              else {
                newValidation.rules = rules.rules;
              }
              // For each new rule, check if there's not already one with the same type
              $.each(newValidation.rules, function (_index, rule) {
                if ($.grep(validation[name].rules, function(item){ return item.type == rule.type; }).length == 0) {
                  validation[name].rules.push(rule);
                }
              });
              module.debug('Adding rules', newValidation.rules, validation);
            },
            fields: function(fields) {
              validation = $.extend({}, validation, module.get.fieldsFromShorthand(fields));
            },
            prompt: function(identifier, errors, internal) {
              var
                $field       = module.get.field(identifier),
                $fieldGroup  = $field.closest($group),
                $prompt      = $fieldGroup.children(selector.prompt),
                promptExists = ($prompt.length !== 0)
              ;
              errors = (typeof errors == 'string')
                ? [errors]
                : errors
              ;
              module.verbose('Adding field error state', identifier);
              if(!internal) {
                $fieldGroup
                    .addClass(className.error)
                ;
              }
              if(settings.inline) {
                if(!promptExists) {
                  $prompt = settings.templates.prompt(errors, className.label);
                  $prompt
                    .appendTo($fieldGroup)
                  ;
                }
                $prompt
                  .html(errors[0])
                ;
                if(!promptExists) {
                  if(settings.transition && module.can.useElement('transition') && $module.transition('is supported')) {
                    module.verbose('Displaying error with css transition', settings.transition);
                    $prompt.transition(settings.transition + ' in', settings.duration);
                  }
                  else {
                    module.verbose('Displaying error with fallback javascript animation');
                    $prompt
                      .fadeIn(settings.duration)
                    ;
                  }
                }
                else {
                  module.verbose('Inline errors are disabled, no inline error added', identifier);
                }
              }
            },
            errors: function(errors) {
              module.debug('Adding form error messages', errors);
              module.set.error();
              $message
                .html( settings.templates.error(errors) )
              ;
            }
          },
  
          remove: {
            errors: function() {
              module.debug('Removing form error messages');
              $message.empty();
            },
            states: function() {
              $module.removeClass(className.error).removeClass(className.success);
              if(!settings.inline) {
                module.remove.errors();
              }
              module.determine.isDirty();
            },
            rule: function(field, rule) {
              var
                rules = Array.isArray(rule)
                  ? rule
                  : [rule]
              ;
              if(validation[field] === undefined || !Array.isArray(validation[field].rules)) {
                return;
              }
              if(rule === undefined) {
                module.debug('Removed all rules');
                validation[field].rules = [];
                return;
              }
              $.each(validation[field].rules, function(index, rule) {
                if(rule && rules.indexOf(rule.type) !== -1) {
                  module.debug('Removed rule', rule.type);
                  validation[field].rules.splice(index, 1);
                }
              });
            },
            field: function(field) {
              var
                fields = Array.isArray(field)
                  ? field
                  : [field]
              ;
              $.each(fields, function(index, field) {
                module.remove.rule(field);
              });
            },
            // alias
            rules: function(field, rules) {
              if(Array.isArray(field)) {
                $.each(field, function(index, field) {
                  module.remove.rule(field, rules);
                });
              }
              else {
                module.remove.rule(field, rules);
              }
            },
            fields: function(fields) {
              module.remove.field(fields);
            },
            prompt: function(identifier) {
              var
                $field      = module.get.field(identifier),
                $fieldGroup = $field.closest($group),
                $prompt     = $fieldGroup.children(selector.prompt)
              ;
              $fieldGroup
                .removeClass(className.error)
              ;
              if(settings.inline && $prompt.is(':visible')) {
                module.verbose('Removing prompt for field', identifier);
                if(settings.transition  && module.can.useElement('transition') && $module.transition('is supported')) {
                  $prompt.transition(settings.transition + ' out', settings.duration, function() {
                    $prompt.remove();
                  });
                }
                else {
                  $prompt
                    .fadeOut(settings.duration, function(){
                      $prompt.remove();
                    })
                  ;
                }
              }
            }
          },
  
          set: {
            success: function() {
              $module
                .removeClass(className.error)
                .addClass(className.success)
              ;
            },
            defaults: function () {
              $field.each(function (index, el) {
                var
                  $el        = $(el),
                  $parent    = $el.parent(),
                  isCheckbox = ($el.filter(selector.checkbox).length > 0),
                  isDropdown = $parent.is(selector.uiDropdown) && module.can.useElement('dropdown'),
                  $calendar   = $el.closest(selector.uiCalendar),
                  isCalendar  = ($calendar.length > 0  && module.can.useElement('calendar')),
                  value      = (isCheckbox)
                    ? $el.is(':checked')
                    : $el.val()
                ;
                if (isDropdown) {
                  $parent.dropdown('save defaults');
                }
                else if (isCalendar) {
                  $calendar.calendar('refresh');
                }
                $el.data(metadata.defaultValue, value);
                $el.data(metadata.isDirty, false);
              });
            },
            error: function() {
              $module
                .removeClass(className.success)
                .addClass(className.error)
              ;
            },
            value: function (field, value) {
              var
                fields = {}
              ;
              fields[field] = value;
              return module.set.values.call(element, fields);
            },
            values: function (fields) {
              if($.isEmptyObject(fields)) {
                return;
              }
              $.each(fields, function(key, value) {
                var
                  $field      = module.get.field(key),
                  $element    = $field.parent(),
                  $calendar   = $field.closest(selector.uiCalendar),
                  isMultiple  = Array.isArray(value),
                  isCheckbox  = $element.is(selector.uiCheckbox)  && module.can.useElement('checkbox'),
                  isDropdown  = $element.is(selector.uiDropdown) && module.can.useElement('dropdown'),
                  isRadio     = ($field.is(selector.radio) && isCheckbox),
                  isCalendar  = ($calendar.length > 0  && module.can.useElement('calendar')),
                  fieldExists = ($field.length > 0),
                  $multipleField
                ;
                if(fieldExists) {
                  if(isMultiple && isCheckbox) {
                    module.verbose('Selecting multiple', value, $field);
                    $element.checkbox('uncheck');
                    $.each(value, function(index, value) {
                      $multipleField = $field.filter('[value="' + value + '"]');
                      $element       = $multipleField.parent();
                      if($multipleField.length > 0) {
                        $element.checkbox('check');
                      }
                    });
                  }
                  else if(isRadio) {
                    module.verbose('Selecting radio value', value, $field);
                    $field.filter('[value="' + value + '"]')
                      .parent(selector.uiCheckbox)
                        .checkbox('check')
                    ;
                  }
                  else if(isCheckbox) {
                    module.verbose('Setting checkbox value', value, $element);
                    if(value === true || value === 1) {
                      $element.checkbox('check');
                    }
                    else {
                      $element.checkbox('uncheck');
                    }
                  }
                  else if(isDropdown) {
                    module.verbose('Setting dropdown value', value, $element);
                    $element.dropdown('set selected', value);
                  }
                  else if (isCalendar) {
                    $calendar.calendar('set date',value);
                  }
                  else {
                    module.verbose('Setting field value', value, $field);
                    $field.val(value);
                  }
                }
              });
            },
            dirty: function() {
              module.verbose('Setting state dirty');
              dirty = true;
              history[0] = history[1];
              history[1] = 'dirty';
  
              if (module.is.justClean()) {
                $module.trigger('dirty');
              }
            },
            clean: function() {
              module.verbose('Setting state clean');
              dirty = false;
              history[0] = history[1];
              history[1] = 'clean';
  
              if (module.is.justDirty()) {
                $module.trigger('clean');
              }
            },
            asClean: function() {
              module.set.defaults();
              module.set.clean();
            },
            asDirty: function() {
              module.set.defaults();
              module.set.dirty();
            },
            autoCheck: function() {
              module.debug('Enabling auto check on required fields');
              $field.each(function (_index, el) {
                var
                  $el        = $(el),
                  $elGroup   = $(el).closest($group),
                  isCheckbox = ($el.filter(selector.checkbox).length > 0),
                  isRequired = $el.prop('required') || $elGroup.hasClass(className.required) || $elGroup.parent().hasClass(className.required),
                  isDisabled = $el.is(':disabled') || $elGroup.hasClass(className.disabled) || $elGroup.parent().hasClass(className.disabled),
                  validation = module.get.validation($el),
                  hasEmptyRule = validation
                    ? $.grep(validation.rules, function(rule) { return rule.type == "empty" }) !== 0
                    : false,
                  identifier = validation.identifier || $el.attr('id') || $el.attr('name') || $el.data(metadata.validate)
                ;
                if (isRequired && !isDisabled && !hasEmptyRule && identifier !== undefined) {
                  if (isCheckbox) {
                    module.verbose("Adding 'checked' rule on field", identifier);
                    module.add.rule(identifier, "checked");
                  } else {
                    module.verbose("Adding 'empty' rule on field", identifier);
                    module.add.rule(identifier, "empty");
                  }
                }
              });
            },
            optional: function(identifier, bool) {
              bool = (bool !== false);
              $.each(validation, function(fieldName, field) {
                if (identifier == fieldName || identifier == field.identifier) {
                  field.optional = bool;
                }
              });
            }
          },
  
          validate: {
  
            form: function(event, ignoreCallbacks) {
              var values = module.get.values();
  
              // input keydown event will fire submit repeatedly by browser default
              if(keyHeldDown) {
                return false;
              }
  
              // reset errors
              formErrors = [];
              if( module.determine.isValid() ) {
                module.debug('Form has no validation errors, submitting');
                module.set.success();
                if(!settings.inline) {
                  module.remove.errors();
                }
                if(ignoreCallbacks !== true) {
                  return settings.onSuccess.call(element, event, values);
                }
              }
              else {
                module.debug('Form has errors');
                submitting = false;
                module.set.error();
                if(!settings.inline) {
                  module.add.errors(formErrors);
                }
                // prevent ajax submit
                if(event && $module.data('moduleApi') !== undefined) {
                  event.stopImmediatePropagation();
                }
                if(settings.errorFocus) {
                  var focusElement, hasTabIndex = true;
                  if (typeof settings.errorFocus === 'string') {
                    focusElement = $(settings.errorFocus);
                    hasTabIndex = focusElement.is('[tabindex]');
                    // to be able to focus/scroll into non input elements we need a tabindex
                    if (!hasTabIndex) {
                      focusElement.attr('tabindex',-1);
                    }
                  } else {
                    focusElement = $group.filter('.' + className.error).first().find(selector.field);
                  }
                  focusElement.focus();
                  // only remove tabindex if it was dynamically created above
                  if (!hasTabIndex){
                    focusElement.removeAttr('tabindex');
                  }
                }
                if(ignoreCallbacks !== true) {
                  return settings.onFailure.call(element, formErrors, values);
                }
              }
            },
  
            // takes a validation object and returns whether field passes validation
            field: function(field, fieldName, showErrors) {
              showErrors = (showErrors !== undefined)
                ? showErrors
                : true
              ;
              if(typeof field == 'string') {
                module.verbose('Validating field', field);
                fieldName = field;
                field     = validation[field];
              }
              var
                identifier    = field.identifier || fieldName,
                $field        = module.get.field(identifier),
                $dependsField = (field.depends)
                  ? module.get.field(field.depends)
                  : false,
                fieldValid  = true,
                fieldErrors = []
              ;
              if(!field.identifier) {
                module.debug('Using field name as identifier', identifier);
                field.identifier = identifier;
              }
              var isDisabled = !$field.filter(':not(:disabled)').length;
              if(isDisabled) {
                module.debug('Field is disabled. Skipping', identifier);
              }
              else if(field.optional && module.is.blank($field)){
                module.debug('Field is optional and blank. Skipping', identifier);
              }
              else if(field.depends && module.is.empty($dependsField)) {
                module.debug('Field depends on another value that is not present or empty. Skipping', $dependsField);
              }
              else if(field.rules !== undefined) {
                if(showErrors) {
                  $field.closest($group).removeClass(className.error);
                }
                $.each(field.rules, function(index, rule) {
                  if( module.has.field(identifier)) {
                    var invalidFields = module.validate.rule(field, rule,true) || [];
                    if (invalidFields.length>0){
                      module.debug('Field is invalid', identifier, rule.type);
                      fieldErrors.push(module.get.prompt(rule, field));
                      fieldValid = false;
                      if(showErrors){
                        $(invalidFields).closest($group).addClass(className.error);
                      }
                    }
                  }
                });
              }
              if(fieldValid) {
                if(showErrors) {
                  module.remove.prompt(identifier, fieldErrors);
                  settings.onValid.call($field);
                }
              }
              else {
                if(showErrors) {
                  formErrors = formErrors.concat(fieldErrors);
                  module.add.prompt(identifier, fieldErrors, true);
                  settings.onInvalid.call($field, fieldErrors);
                }
                return false;
              }
              return true;
            },
  
            // takes validation rule and returns whether field passes rule
            rule: function(field, rule, internal) {
              var
                $field       = module.get.field(field.identifier),
                ancillary    = module.get.ancillaryValue(rule),
                ruleName     = module.get.ruleName(rule),
                ruleFunction = settings.rules[ruleName],
                invalidFields = [],
                isCheckbox = $field.is(selector.checkbox),
                isValid = function(field){
                  var value = (isCheckbox ? $(field).filter(':checked').val() : $(field).val());
                  // cast to string avoiding encoding special values
                  value = (value === undefined || value === '' || value === null)
                      ? ''
                      : (settings.shouldTrim && rule.shouldTrim !== false) || rule.shouldTrim ? String(value + '').trim() : String(value + '')
                  ;
                  return ruleFunction.call(field, value, ancillary, $module);
                }
              ;
              if( !$.isFunction(ruleFunction) ) {
                module.error(error.noRule, ruleName);
                return;
              }
              if(isCheckbox) {
                if (!isValid($field)) {
                  invalidFields = $field;
                }
              } else {
                $.each($field, function (index, field) {
                  if (!isValid(field)) {
                    invalidFields.push(field);
                  }
                });
              }
              return internal ? invalidFields : !(invalidFields.length>0);
            }
          },
  
          setting: function(name, value) {
            if( $.isPlainObject(name) ) {
              $.extend(true, settings, name);
            }
            else if(value !== undefined) {
              settings[name] = value;
            }
            else {
              return settings[name];
            }
          },
          internal: function(name, value) {
            if( $.isPlainObject(name) ) {
              $.extend(true, module, name);
            }
            else if(value !== undefined) {
              module[name] = value;
            }
            else {
              return module[name];
            }
          },
          debug: function() {
            if(!settings.silent && settings.debug) {
              if(settings.performance) {
                module.performance.log(arguments);
              }
              else {
                module.debug = Function.prototype.bind.call(console.info, console, settings.name + ':');
                module.debug.apply(console, arguments);
              }
            }
          },
          verbose: function() {
            if(!settings.silent && settings.verbose && settings.debug) {
              if(settings.performance) {
                module.performance.log(arguments);
              }
              else {
                module.verbose = Function.prototype.bind.call(console.info, console, settings.name + ':');
                module.verbose.apply(console, arguments);
              }
            }
          },
          error: function() {
            if(!settings.silent) {
              module.error = Function.prototype.bind.call(console.error, console, settings.name + ':');
              module.error.apply(console, arguments);
            }
          },
          performance: {
            log: function(message) {
              var
                currentTime,
                executionTime,
                previousTime
              ;
              if(settings.performance) {
                currentTime   = new Date().getTime();
                previousTime  = time || currentTime;
                executionTime = currentTime - previousTime;
                time          = currentTime;
                performance.push({
                  'Name'           : message[0],
                  'Arguments'      : [].slice.call(message, 1) || '',
                  'Element'        : element,
                  'Execution Time' : executionTime
                });
              }
              clearTimeout(module.performance.timer);
              module.performance.timer = setTimeout(module.performance.display, 500);
            },
            display: function() {
              var
                title = settings.name + ':',
                totalTime = 0
              ;
              time = false;
              clearTimeout(module.performance.timer);
              $.each(performance, function(index, data) {
                totalTime += data['Execution Time'];
              });
              title += ' ' + totalTime + 'ms';
              if(moduleSelector) {
                title += ' \'' + moduleSelector + '\'';
              }
              if($allModules.length > 1) {
                title += ' ' + '(' + $allModules.length + ')';
              }
              if( (console.group !== undefined || console.table !== undefined) && performance.length > 0) {
                console.groupCollapsed(title);
                if(console.table) {
                  console.table(performance);
                }
                else {
                  $.each(performance, function(index, data) {
                    console.log(data['Name'] + ': ' + data['Execution Time']+'ms');
                  });
                }
                console.groupEnd();
              }
              performance = [];
            }
          },
          invoke: function(query, passedArguments, context) {
            var
              object = instance,
              maxDepth,
              found,
              response
            ;
            passedArguments = passedArguments || queryArguments;
            context         = element         || context;
            if(typeof query == 'string' && object !== undefined) {
              query    = query.split(/[\. ]/);
              maxDepth = query.length - 1;
              $.each(query, function(depth, value) {
                var camelCaseValue = (depth != maxDepth)
                  ? value + query[depth + 1].charAt(0).toUpperCase() + query[depth + 1].slice(1)
                  : query
                ;
                if( $.isPlainObject( object[camelCaseValue] ) && (depth != maxDepth) ) {
                  object = object[camelCaseValue];
                }
                else if( object[camelCaseValue] !== undefined ) {
                  found = object[camelCaseValue];
                  return false;
                }
                else if( $.isPlainObject( object[value] ) && (depth != maxDepth) ) {
                  object = object[value];
                }
                else if( object[value] !== undefined ) {
                  found = object[value];
                  return false;
                }
                else {
                  return false;
                }
              });
            }
            if( $.isFunction( found ) ) {
              response = found.apply(context, passedArguments);
            }
            else if(found !== undefined) {
              response = found;
            }
            if(Array.isArray(returnedValue)) {
              returnedValue.push(response);
            }
            else if(returnedValue !== undefined) {
              returnedValue = [returnedValue, response];
            }
            else if(response !== undefined) {
              returnedValue = response;
            }
            return found;
          }
        };
        module.initialize();
      })
    ;
  
    return (returnedValue !== undefined)
      ? returnedValue
      : this
    ;
  };
  
  $.fn.form.settings = {
  
    name              : 'Form',
    namespace         : 'form',
  
    debug             : false,
    verbose           : false,
    performance       : true,
  
    fields            : false,
  
    keyboardShortcuts : true,
    on                : 'submit',
    inline            : false,
  
    delay             : 200,
    revalidate        : true,
    shouldTrim        : true,
  
    transition        : 'scale',
    duration          : 200,
  
    autoCheckRequired : false,
    preventLeaving    : false,
    errorFocus        : false,
    dateHandling      : 'date', // 'date', 'input', 'formatter'
  
    onValid           : function() {},
    onInvalid         : function() {},
    onSuccess         : function() { return true; },
    onFailure         : function() { return false; },
    onDirty           : function() {},
    onClean           : function() {},
  
    metadata : {
      defaultValue : 'default',
      validate     : 'validate',
      isDirty      : 'isDirty'
    },
  
    regExp: {
      htmlID  : /^[a-zA-Z][\w:.-]*$/g,
      bracket : /\[(.*)\]/i,
      decimal : /^\d+\.?\d*$/,
      email   : /^[a-z0-9!#$%&'*+\/=?^_`{|}~.-]+@[a-z0-9]([a-z0-9-]*[a-z0-9])?(\.[a-z0-9]([a-z0-9-]*[a-z0-9])?)*$/i,
      escape  : /[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|:,=@]/g,
      flags   : /^\/(.*)\/(.*)?/,
      integer : /^\-?\d+$/,
      number  : /^\-?\d*(\.\d+)?$/,
      url     : /(https?:\/\/(?:www\.|(?!www))[^\s\.]+\.[^\s]{2,}|www\.[^\s]+\.[^\s]{2,})/i
    },
  
    text: {
      and              : 'and',
      unspecifiedRule  : 'Please enter a valid value',
      unspecifiedField : 'This field',
      leavingMessage   : 'There are unsaved changes on this page which will be discarded if you continue.'
    },
  
    prompt: {
      range                : '{name} must be in a range from {min} to {max}',
      maxValue             : '{name} must have a maximum value of {ruleValue}',
      minValue             : '{name} must have a minimum value of {ruleValue}',
      empty                : '{name} must have a value',
      checked              : '{name} must be checked',
      email                : '{name} must be a valid e-mail',
      url                  : '{name} must be a valid url',
      regExp               : '{name} is not formatted correctly',
      integer              : '{name} must be an integer',
      decimal              : '{name} must be a decimal number',
      number               : '{name} must be set to a number',
      is                   : '{name} must be "{ruleValue}"',
      isExactly            : '{name} must be exactly "{ruleValue}"',
      not                  : '{name} cannot be set to "{ruleValue}"',
      notExactly           : '{name} cannot be set to exactly "{ruleValue}"',
      contain              : '{name} must contain "{ruleValue}"',
      containExactly       : '{name} must contain exactly "{ruleValue}"',
      doesntContain        : '{name} cannot contain  "{ruleValue}"',
      doesntContainExactly : '{name} cannot contain exactly "{ruleValue}"',
      minLength            : '{name} must be at least {ruleValue} characters',
      length               : '{name} must be at least {ruleValue} characters',
      exactLength          : '{name} must be exactly {ruleValue} characters',
      maxLength            : '{name} cannot be longer than {ruleValue} characters',
      match                : '{name} must match {ruleValue} field',
      different            : '{name} must have a different value than {ruleValue} field',
      creditCard           : '{name} must be a valid credit card number',
      minCount             : '{name} must have at least {ruleValue} choices',
      exactCount           : '{name} must have exactly {ruleValue} choices',
      maxCount             : '{name} must have {ruleValue} or less choices'
    },
  
    selector : {
      checkbox   : 'input[type="checkbox"], input[type="radio"]',
      clear      : '.clear',
      field      : 'input:not(.search), textarea, select',
      group      : '.field',
      input      : 'input',
      message    : '.error.message',
      prompt     : '.prompt.label',
      radio      : 'input[type="radio"]',
      reset      : '.reset:not([type="reset"])',
      submit     : '.submit:not([type="submit"])',
      uiCheckbox : '.ui.checkbox',
      uiDropdown : '.ui.dropdown',
      uiCalendar : '.ui.calendar'
    },
  
    className : {
      error    : 'error',
      label    : 'ui basic red pointing prompt label',
      pressed  : 'down',
      success  : 'success',
      required : 'required',
      disabled : 'disabled'
    },
  
    error: {
      identifier : 'You must specify a string identifier for each field',
      method     : 'The method you called is not defined.',
      noRule     : 'There is no rule matching the one you specified',
      oldSyntax  : 'Starting in 2.0 forms now only take a single settings object. Validation settings converted to new syntax automatically.',
      noElement  : 'This module requires ui {element}'
    },
  
    templates: {
  
      // template that produces error message
      error: function(errors) {
        var
          html = '<ul class="list">'
        ;
        $.each(errors, function(index, value) {
          html += '<li>' + value + '</li>';
        });
        html += '</ul>';
        return $(html);
      },
  
      // template that produces label
      prompt: function(errors, labelClasses) {
        return $('<div/>')
          .addClass(labelClasses)
          .html(errors[0])
        ;
      }
    },
  
    formatter: {
      date: function(date) {
        return Intl.DateTimeFormat('en-GB').format(date);
      },
      datetime: function(date) {
        return Intl.DateTimeFormat('en-GB', {
          year: "numeric",
          month: "2-digit",
          day: "2-digit",
          hour: '2-digit',
          minute: '2-digit',
          second: '2-digit'
        }).format(date);
      },
      time: function(date) {
        return Intl.DateTimeFormat('en-GB', {
          hour: '2-digit',
          minute: '2-digit',
          second: '2-digit'
        }).format(date);
      },
      month: function(date) {
        return Intl.DateTimeFormat('en-GB', {
          month: '2-digit',
          year: 'numeric'
        }).format(date);
      },
      year: function(date) {
        return Intl.DateTimeFormat('en-GB', {
          year: 'numeric'
        }).format(date);
      }
    },
  
    rules: {
  
      // is not empty or blank string
      empty: function(value) {
        return !(value === undefined || '' === value || Array.isArray(value) && value.length === 0);
      },
  
      // checkbox checked
      checked: function() {
        return ($(this).filter(':checked').length > 0);
      },
  
      // is most likely an email
      email: function(value){
        return $.fn.form.settings.regExp.email.test(value);
      },
  
      // value is most likely url
      url: function(value) {
        return $.fn.form.settings.regExp.url.test(value);
      },
  
      // matches specified regExp
      regExp: function(value, regExp) {
        if(regExp instanceof RegExp) {
          return value.match(regExp);
        }
        var
          regExpParts = regExp.match($.fn.form.settings.regExp.flags),
          flags
        ;
        // regular expression specified as /baz/gi (flags)
        if(regExpParts) {
          regExp = (regExpParts.length >= 2)
            ? regExpParts[1]
            : regExp
          ;
          flags = (regExpParts.length >= 3)
            ? regExpParts[2]
            : ''
          ;
        }
        return value.match( new RegExp(regExp, flags) );
      },
      minValue: function(value, range) {
        return $.fn.form.settings.rules.range(value, range+'..', 'number');
      },
      maxValue: function(value, range) {
        return $.fn.form.settings.rules.range(value, '..'+range, 'number');
      },
      // is valid integer or matches range
      integer: function(value, range) {
        return $.fn.form.settings.rules.range(value, range, 'integer');
      },
      range: function(value, range, regExp) {
        if(typeof regExp == "string") {
          regExp = $.fn.form.settings.regExp[regExp];
        }
        if(!(regExp instanceof RegExp)) {
          regExp = $.fn.form.settings.regExp.integer;
        }
        var
          min,
          max,
          parts
        ;
        if( !range || ['', '..'].indexOf(range) !== -1) {
          // do nothing
        }
        else if(range.indexOf('..') == -1) {
          if(regExp.test(range)) {
            min = max = range - 0;
          }
        }
        else {
          parts = range.split('..', 2);
          if(regExp.test(parts[0])) {
            min = parts[0] - 0;
          }
          if(regExp.test(parts[1])) {
            max = parts[1] - 0;
          }
        }
        return (
          regExp.test(value) &&
          (min === undefined || value >= min) &&
          (max === undefined || value <= max)
        );
      },
  
      // is valid number (with decimal)
      decimal: function(value, range) {
        return $.fn.form.settings.rules.range(value, range, 'decimal');
      },
  
      // is valid number
      number: function(value, range) {
        return $.fn.form.settings.rules.range(value, range, 'number');
      },
  
      // is value (case insensitive)
      is: function(value, text) {
        text = (typeof text == 'string')
          ? text.toLowerCase()
          : text
        ;
        value = (typeof value == 'string')
          ? value.toLowerCase()
          : value
        ;
        return (value == text);
      },
  
      // is value
      isExactly: function(value, text) {
        return (value == text);
      },
  
      // value is not another value (case insensitive)
      not: function(value, notValue) {
        value = (typeof value == 'string')
          ? value.toLowerCase()
          : value
        ;
        notValue = (typeof notValue == 'string')
          ? notValue.toLowerCase()
          : notValue
        ;
        return (value != notValue);
      },
  
      // value is not another value (case sensitive)
      notExactly: function(value, notValue) {
        return (value != notValue);
      },
  
      // value contains text (insensitive)
      contains: function(value, text) {
        // escape regex characters
        text = text.replace($.fn.form.settings.regExp.escape, "\\$&");
        return (value.search( new RegExp(text, 'i') ) !== -1);
      },
  
      // value contains text (case sensitive)
      containsExactly: function(value, text) {
        // escape regex characters
        text = text.replace($.fn.form.settings.regExp.escape, "\\$&");
        return (value.search( new RegExp(text) ) !== -1);
      },
  
      // value contains text (insensitive)
      doesntContain: function(value, text) {
        // escape regex characters
        text = text.replace($.fn.form.settings.regExp.escape, "\\$&");
        return (value.search( new RegExp(text, 'i') ) === -1);
      },
  
      // value contains text (case sensitive)
      doesntContainExactly: function(value, text) {
        // escape regex characters
        text = text.replace($.fn.form.settings.regExp.escape, "\\$&");
        return (value.search( new RegExp(text) ) === -1);
      },
  
      // is at least string length
      minLength: function(value, requiredLength) {
        return (value !== undefined)
          ? (value.length >= requiredLength)
          : false
        ;
      },
  
      // see rls notes for 2.0.6 (this is a duplicate of minLength)
      length: function(value, requiredLength) {
        return (value !== undefined)
          ? (value.length >= requiredLength)
          : false
        ;
      },
  
      // is exactly length
      exactLength: function(value, requiredLength) {
        return (value !== undefined)
          ? (value.length == requiredLength)
          : false
        ;
      },
  
      // is less than length
      maxLength: function(value, maxLength) {
        return (value !== undefined)
          ? (value.length <= maxLength)
          : false
        ;
      },
  
      // matches another field
      match: function(value, identifier, $module) {
        var
          matchingValue,
          matchingElement
        ;
        if((matchingElement = $module.find('[data-validate="'+ identifier +'"]')).length > 0 ) {
          matchingValue = matchingElement.val();
        }
        else if((matchingElement = $module.find('#' + identifier)).length > 0) {
          matchingValue = matchingElement.val();
        }
        else if((matchingElement = $module.find('[name="' + identifier +'"]')).length > 0) {
          matchingValue = matchingElement.val();
        }
        else if((matchingElement = $module.find('[name="' + identifier +'[]"]')).length > 0 ) {
          matchingValue = matchingElement;
        }
        return (matchingValue !== undefined)
          ? ( value.toString() == matchingValue.toString() )
          : false
        ;
      },
  
      // different than another field
      different: function(value, identifier, $module) {
        // use either id or name of field
        var
          matchingValue,
          matchingElement
        ;
        if((matchingElement = $module.find('[data-validate="'+ identifier +'"]')).length > 0 ) {
          matchingValue = matchingElement.val();
        }
        else if((matchingElement = $module.find('#' + identifier)).length > 0) {
          matchingValue = matchingElement.val();
        }
        else if((matchingElement = $module.find('[name="' + identifier +'"]')).length > 0) {
          matchingValue = matchingElement.val();
        }
        else if((matchingElement = $module.find('[name="' + identifier +'[]"]')).length > 0 ) {
          matchingValue = matchingElement;
        }
        return (matchingValue !== undefined)
          ? ( value.toString() !== matchingValue.toString() )
          : false
        ;
      },
  
      creditCard: function(cardNumber, cardTypes) {
        var
          cards = {
            visa: {
              pattern : /^4/,
              length  : [16]
            },
            amex: {
              pattern : /^3[47]/,
              length  : [15]
            },
            mastercard: {
              pattern : /^5[1-5]/,
              length  : [16]
            },
            discover: {
              pattern : /^(6011|622(12[6-9]|1[3-9][0-9]|[2-8][0-9]{2}|9[0-1][0-9]|92[0-5]|64[4-9])|65)/,
              length  : [16]
            },
            unionPay: {
              pattern : /^(62|88)/,
              length  : [16, 17, 18, 19]
            },
            jcb: {
              pattern : /^35(2[89]|[3-8][0-9])/,
              length  : [16]
            },
            maestro: {
              pattern : /^(5018|5020|5038|6304|6759|676[1-3])/,
              length  : [12, 13, 14, 15, 16, 17, 18, 19]
            },
            dinersClub: {
              pattern : /^(30[0-5]|^36)/,
              length  : [14]
            },
            laser: {
              pattern : /^(6304|670[69]|6771)/,
              length  : [16, 17, 18, 19]
            },
            visaElectron: {
              pattern : /^(4026|417500|4508|4844|491(3|7))/,
              length  : [16]
            }
          },
          valid         = {},
          validCard     = false,
          requiredTypes = (typeof cardTypes == 'string')
            ? cardTypes.split(',')
            : false,
          unionPay,
          validation
        ;
  
        if(typeof cardNumber !== 'string' || cardNumber.length === 0) {
          return;
        }
  
        // allow dashes in card
        cardNumber = cardNumber.replace(/[\-]/g, '');
  
        // verify card types
        if(requiredTypes) {
          $.each(requiredTypes, function(index, type){
            // verify each card type
            validation = cards[type];
            if(validation) {
              valid = {
                length  : ($.inArray(cardNumber.length, validation.length) !== -1),
                pattern : (cardNumber.search(validation.pattern) !== -1)
              };
              if(valid.length && valid.pattern) {
                validCard = true;
              }
            }
          });
  
          if(!validCard) {
            return false;
          }
        }
  
        // skip luhn for UnionPay
        unionPay = {
          number  : ($.inArray(cardNumber.length, cards.unionPay.length) !== -1),
          pattern : (cardNumber.search(cards.unionPay.pattern) !== -1)
        };
        if(unionPay.number && unionPay.pattern) {
          return true;
        }
  
        // verify luhn, adapted from  <https://gist.github.com/2134376>
        var
          length        = cardNumber.length,
          multiple      = 0,
          producedValue = [
            [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
            [0, 2, 4, 6, 8, 1, 3, 5, 7, 9]
          ],
          sum           = 0
        ;
        while (length--) {
          sum += producedValue[multiple][parseInt(cardNumber.charAt(length), 10)];
          multiple ^= 1;
        }
        return (sum % 10 === 0 && sum > 0);
      },
  
      minCount: function(value, minCount) {
        if(minCount == 0) {
          return true;
        }
        if(minCount == 1) {
          return (value !== '');
        }
        return (value.split(',').length >= minCount);
      },
  
      exactCount: function(value, exactCount) {
        if(exactCount == 0) {
          return (value === '');
        }
        if(exactCount == 1) {
          return (value !== '' && value.search(',') === -1);
        }
        return (value.split(',').length == exactCount);
      },
  
      maxCount: function(value, maxCount) {
        if(maxCount == 0) {
          return false;
        }
        if(maxCount == 1) {
          return (value.search(',') === -1);
        }
        return (value.split(',').length <= maxCount);
      }
    }
  
  };
  
  })( jQuery, window, document );
  