private static void RegisterOddEvenHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("odd", (writer, options, context, arguments) =>
{
int number = 0;
if (arguments.Length == 1 && int.TryParse(arguments[0].ToString(), out number) && number % 2 != 0)
{
options.Template(writer, (object)context);
}
else
{
options.Inverse(writer, (object)context);
}
});
hbs.RegisterHelper("even", (writer, options, context, arguments) =>
{
int number = 0;
if (arguments.Length == 1 && int.TryParse(arguments[0].ToString(), out number) && number % 2 == 0)
{
options.Template(writer, (object)context);
}
else
{
options.Inverse(writer, (object)context);
}
});
}
/// <summary>
/// A block helper.
/// Returns nothing, executes the template-part if contidions are met.
/// </summary>
/// <param name="hbs">The HBS.</param>
private void RegisterEqualHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("equal", (writer, options, context, arguments) =>
{
if (arguments.Length == 2 && arguments[0].Equals(arguments[1]))
{
options.Template(writer, (object)context);
}
else
{
options.Inverse(writer, (object)context);
}
});
hbs.RegisterHelper("equaldate", (writer, options, context, arguments) =>
{
try
{
DateTime datetime1 = DateTime.Parse(arguments[0].ToString(), null, System.Globalization.DateTimeStyles.RoundtripKind);
DateTime datetime2 = DateTime.Parse(arguments[1].ToString(), null, System.Globalization.DateTimeStyles.RoundtripKind);
if (datetime1.Date == datetime2.Date)
{
options.Template(writer, (object)context);
}
else
{
options.Inverse(writer, (object)context);
}
}
catch (Exception)
{
options.Inverse(writer, (object)context);
}
});
}
private void RegisterRegisterScriptHelper(HandlebarsDotNet.IHandlebars hbs, Page page, string sourceFolder)
{
hbs.RegisterHelper("registerscript", (writer, context, parameters) =>
{
if (parameters.Length == 1)
{
string jsfilename = parameters[0].ToString();
DnnUtils.RegisterScript(page, sourceFolder, jsfilename, _jsOrder);
_jsOrder++;
}
});
hbs.RegisterHelper("registerform", (writer, context, parameters) =>
{
string view = "bootstrap";
if (parameters.Length == 1)
{
view = parameters[0].ToString();
}
FormHelpers.RegisterForm(page, sourceFolder, view, ref _jsOrder);
});
hbs.RegisterHelper("registereditform", (writer, context, parameters) =>
{
string prefix = "";
if (parameters.Length == 1)
{
prefix = parameters[0].ToString();
}
FormHelpers.RegisterEditForm(page, sourceFolder, PortalSettings.Current.PortalId, prefix, ref _jsOrder);
});
}
private static void RegisterUrlHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("prefixurl", (writer, context, parameters) =>
{
try
{
string url = parameters[0].ToString();
string lowerUrl = url.ToLower();
if (!lowerUrl.StartsWith("http://") &&
!lowerUrl.StartsWith("https://") &&
!lowerUrl.StartsWith("tel:") &&
!lowerUrl.StartsWith("mail:"))
{
if (IsEmailAdress(url))
{
url = "mailto:" + url;
}
else if (IsPhoneNumber(url))
{
url = "tel:" + url;
}
else
{
url = "http://" + url;
}
}
writer.WriteSafeString(url);
}
catch (Exception)
{
writer.WriteSafeString("");
}
});
}
private static void RegisterEmailHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("protectemail", (writer, context, parameters) =>
{
try
{
string email = parameters[0].ToString();
string subject = "";
string visibleText = "";
if (parameters.Length > 1)
{
subject = parameters[1].ToString();
}
if (parameters.Length > 2)
{
visibleText = parameters[2].ToString();
}
writer.WriteSafeString(email.ProtectEmail(subject, visibleText));
}
catch (Exception)
{
writer.WriteSafeString("");
}
});
}
private static void RegisterRawHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("raw", (writer, options, context, parameters) =>
{
options.Template(writer, null);
});
}
/*
* private void RegisterEditUrlHelper(HandlebarsDotNet.IHandlebars hbs, IModuleControl module)
* {
* hbs.RegisterHelper("editurl", (writer, context, parameters) =>
* {
* if (parameters.Length == 1)
* {
* string id = parameters[0] as string;
* writer.WriteSafeString(module.ModuleContext.EditUrl("itemid", id));
* }
* });
* }
*/
/// <summary>
/// Retrieves image URL.
/// Param1 is imageId,
/// Param2 is Size of the image (in Bootstrap 12th),
/// Param3 is ratio string (eg '1x1'),
/// </summary>
/// <param name="hbs">The HBS.</param>
private void RegisterImageUrlHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("imageurl", (writer, context, parameters) =>
{
if (parameters.Length == 3)
{
string imageId = parameters[0] as string;
int width = Normalize.DynamicValue(parameters[1], -1);
string ratiostring = parameters[2] as string;
bool isMobile = HttpContext.Current.Request.Browser.IsMobileDevice;
ImageUri imageObject = ImageUriFactory.CreateImageUri(imageId);
var imageUrl = imageObject == null ? string.Empty : imageObject.GetImageUrl(width, ratiostring, isMobile);
writer.WriteSafeString(imageUrl);
}
if (parameters.Length == 2)
{
string imageId = parameters[0] as string;
int width = Normalize.DynamicValue(parameters[1], -1);
bool isMobile = HttpContext.Current.Request.Browser.IsMobileDevice;
ImageUri imageObject = ImageUriFactory.CreateImageUri(imageId);
var imageUrl = imageObject == null ? string.Empty : imageObject.GetImageUrl(width, imageObject.RawRatio, isMobile);
writer.WriteSafeString(imageUrl);
}
});
}
/// <summary>
/// Retrieved an element from a list.
/// First param is List, the second param is the int with the position to retrieve.
/// Zero-based retrieval
/// </summary>
/// <param name="hbs">The HBS.</param>
private void RegisterArrayIndexHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("arrayindex", (writer, context, parameters) =>
{
try
{
object[] a;
if (parameters[0] is IEnumerable <object> )
{
var en = parameters[0] as IEnumerable <object>;
a = en.ToArray();
}
else
{
a = (object[])parameters[0];
}
int b = int.Parse(parameters[1].ToString());
object c = a[b];
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, c.ToString());
}
catch (Exception)
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "");
}
});
}
private void RegisterFormatNumberHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("formatNumber", (writer, context, parameters) =>
{
try
{
decimal?number = parameters[0] as decimal?;
string format = parameters[1].ToString();
string provider = parameters[2].ToString();
IFormatProvider formatprovider = null;
if (provider.ToLower() == "invariant")
{
formatprovider = CultureInfo.InvariantCulture;
}
else if (!string.IsNullOrWhiteSpace(provider))
{
formatprovider = CultureInfo.CreateSpecificCulture(provider);
}
string res = number.Value.ToString(format, formatprovider);
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, res);
}
catch (Exception)
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "");
}
});
}
private void RegisterScriptHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("script", (writer, options, context, arguments) =>
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "<script>");
options.Template(writer, (object)context);
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "</script>");
});
}
private void RegisterHandlebarsHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("handlebars", (writer, options, context, arguments) =>
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "<script id=\"jplist-templatex\" type=\"text/x-handlebars-template\">");
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, context);
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "</script>");
});
}
private void RegisterEachPublishedHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("published", (writer, options, context, parameters) =>
{
bool EditMode = PortalSettings.Current.UserMode == PortalSettings.Mode.Edit;
if (EditMode)
{
options.Template(writer, parameters[0]);
}
else
{
var lst = new List <dynamic>();
foreach (dynamic item in parameters[0] as IEnumerable)
{
bool show = true;
try
{
if (item.publishstatus != "published")
{
show = false;
}
}
catch (Exception)
{
}
try
{
DateTime publishstartdate = DateTime.Parse(item.publishstartdate, null, System.Globalization.DateTimeStyles.RoundtripKind);
if (publishstartdate.Date >= DateTime.Today)
{
show = false;
}
}
catch (Exception)
{
}
try
{
DateTime publishenddate = DateTime.Parse(item.publishenddate, null, System.Globalization.DateTimeStyles.RoundtripKind);
if (publishenddate.Date <= DateTime.Today)
{
show = false;
}
}
catch (Exception)
{
}
if (show)
{
lst.Add(item);
}
}
options.Template(writer, lst);
}
});
}
private void RegisterFormatNumberHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("formatNumber", (writer, context, parameters) =>
{
try
{
decimal number;
if (parameters[0] is decimal?)
{
number = (parameters[0] as decimal?).Value;
}
else if (parameters[0] is decimal)
{
number = (decimal)parameters[0];
}
else
{
number = decimal.Parse(parameters[0].ToString());
}
string res = "";
string format = "0.00";
if (parameters.Count() > 1)
{
format = parameters[1].ToString();
}
if (parameters.Count() > 2 && !string.IsNullOrWhiteSpace(parameters[2].ToString()))
{
string provider = parameters[2].ToString();
IFormatProvider formatprovider = null;
if (provider.ToLower() == "invariant")
{
formatprovider = CultureInfo.InvariantCulture;
}
else
{
formatprovider = CultureInfo.CreateSpecificCulture(provider);
}
res = number.ToString(format, formatprovider);
}
else
{
res = number.ToString(format);
}
//string provider = parameters[2].ToString();
//string res = number.Value.ToString(format, formatprovider);
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, res);
}
catch (Exception)
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "");
}
});
}
private void RegisterRegisterScriptHelper(HandlebarsDotNet.IHandlebars hbs, Page page, string sourceFolder)
{
hbs.RegisterHelper("registerscript", (writer, context, parameters) =>
{
if (parameters.Length == 1)
{
string jsfilename = parameters[0].ToString();
DnnUtils.RegisterScript(page, sourceFolder, jsfilename, _jsOrder);
_jsOrder++;
}
});
}
/// <summary>
/// A block helper.
/// Returns nothing, executes the template-part if contidions are met.
/// </summary>
/// <param name="hbs">The HBS.</param>
private void RegisterEqualHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("equal", (writer, options, context, arguments) =>
{
if (arguments.Length == 2 && arguments[0].Equals(arguments[1]))
{
options.Template(writer, (object)context);
}
else
{
options.Inverse(writer, (object)context);
}
});
}
private void RegisterConvertToJsonHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("convertToJson", (writer, context, parameters) =>
{
try
{
var res = System.Web.Helpers.Json.Encode(parameters[0]);
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, res);
}
catch (Exception)
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "");
}
});
}
private void RegisterRegisterStylesheetHelper(HandlebarsDotNet.IHandlebars hbs, Page page, string sourceFolder)
{
hbs.RegisterHelper("registerstylesheet", (writer, context, parameters) =>
{
if (parameters.Length == 1)
{
string cssfilename = parameters[0].ToString();
if (!cssfilename.StartsWith("/") && !cssfilename.Contains("//"))
{
cssfilename = sourceFolder + cssfilename;
}
ClientResourceManager.RegisterStyleSheet(page, page.ResolveUrl(cssfilename), FileOrder.Css.PortalCss);
}
});
}
private void RegisterConvertHtmlToTextHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("convertHtmlToText", (writer, context, parameters) =>
{
try
{
string html = parameters[0].ToString();
string res = DotNetNuke.Services.Mail.Mail.ConvertToText(html);
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, res);
}
catch (Exception)
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "");
}
});
}
private void RegisterReplaceNewlineHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("replacenewline", (writer, context, parameters) =>
{
try
{
string text = parameters[0].ToString();
text = text.Replace("\n", parameters[1].ToString());
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, text);
}
catch (Exception)
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "");
}
});
}
private void RegisterSubstractionHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("substract", (writer, context, parameters) =>
{
try
{
int a = int.Parse(parameters[0].ToString());
int b = int.Parse(parameters[1].ToString());
int c = a - b;
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, c.ToString());
}
catch (Exception)
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "0");
}
});
}
private static void RegisterReplaceHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("replace", (writer, context, parameters) =>
{
try
{
string text = parameters[0].ToString();
string oldString = parameters[1].ToString().Replace("\\n", "\n");
text = text.Replace(oldString, parameters[2].ToString());
writer.WriteSafeString(text);
}
catch (Exception)
{
writer.WriteSafeString("");
}
});
}
private static void RegisterAdditionHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("add", (writer, context, parameters) =>
{
try
{
int a = int.Parse(parameters[0].ToString());
int b = int.Parse(parameters[1].ToString());
int c = a + b;
writer.WriteSafeString(c.ToString());
}
catch (Exception)
{
writer.WriteSafeString("0");
}
});
}
private static void RegisterTemplateHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("template", (writer, context, parameters) =>
{
try
{
string html = parameters[0].ToString();
HandlebarsEngine hbs2 = new HandlebarsEngine();
var res = hbs2.Execute(html, parameters[1]);
writer.WriteSafeString(res);
}
catch (Exception ex)
{
writer.WriteSafeString("");
}
});
}
private void RegisterFormatDateTimeHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("formatDateTime", (writer, context, parameters) =>
{
try
{
string res;
//DateTime? datetime = parameters[0] as DateTime?;
DateTime datetime = DateTime.Parse(parameters[0].ToString(), null, System.Globalization.DateTimeStyles.RoundtripKind);
string format = "dd/MM/yyyy";
if (parameters.Count() > 1)
{
format = parameters[1].ToString();
}
if (parameters.Count() > 2 && !string.IsNullOrWhiteSpace(parameters[2].ToString()))
{
string provider = parameters[2].ToString();
IFormatProvider formatprovider = null;
if (provider.ToLower() == "invariant")
{
formatprovider = CultureInfo.InvariantCulture;
}
else
{
formatprovider = CultureInfo.CreateSpecificCulture(provider);
}
res = datetime.ToString(format, formatprovider);
}
else
{
res = datetime.ToString(format);
}
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, res);
}
catch (Exception)
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "");
}
});
}
private static void RegisterConvertHtmlToTextHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("convertHtmlToText", (writer, context, parameters) =>
{
try
{
string html = parameters[0].ToString();
//string res = DotNetNuke.Services.Mail.Mail.ConvertToText(html);
var formattedHtml = HtmlUtils.FormatText(html, true);
//var styleLessHtml = HtmlUtils.RemoveInlineStyle(formattedHtml);
var styleLessHtml = RemoveInlineStylesRegEx.Replace(formattedHtml, string.Empty);
string res = HtmlUtils.StripTags(styleLessHtml, true);
writer.WriteSafeString(res);
}
catch (Exception)
{
writer.WriteSafeString("");
}
});
}
private void RegisterTruncateWordsHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("truncateWords", (writer, context, parameters) =>
{
try
{
string html = parameters[0].ToString();
int maxCharacters = int.Parse(parameters[1].ToString());
string trailingText = "";
if (parameters.Count() > 2)
{
trailingText = parameters[2].ToString();
}
string res = html.TruncateWords(maxCharacters, trailingText);
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, res);
}
catch (Exception)
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "");
}
});
}
/// <summary>
/// Translate an enum value
/// parameters[0] = enum array (eg from schema)
/// parameters[1] = label option array (from option file)
/// parameters[2] = selected enum value
/// </summary>
/// <param name="hbs">The HBS.</param>
private void RegisterArrayTranslateHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("arraytranslate", (writer, context, parameters) =>
{
try
{
object[] a;
if (parameters[0] is IEnumerable <object> )
{
var en = parameters[0] as IEnumerable <object>;
a = en.ToArray();
}
else
{
a = (object[])parameters[0];
}
object[] b;
if (parameters[1] is IEnumerable <object> )
{
var en = parameters[1] as IEnumerable <object>;
b = en.ToArray();
}
else
{
b = (object[])parameters[1];
}
string c = parameters[2].ToString();
int i = Array.IndexOf(a, c);
object res = b[i];
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, res.ToString());
}
catch (Exception)
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "");
}
});
}
private static void RegisterConvertToJsonHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("convertToJson", (writer, context, parameters) =>
{
try
{
string res;
if (parameters[0] is JToken)
{
res = ((JToken)parameters[0]).ToString();
}
else
{
res = System.Web.Helpers.Json.Encode(parameters[0]);
}
writer.WriteSafeString(res);
}
catch (Exception)
{
writer.WriteSafeString("");
}
});
}
private void RegisterFormatDateTimeHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("formatDateTime", (writer, context, parameters) =>
{
// parameters : datetime iso string, format, culture
try
{
string res;
DateTime datetime = DateTime.Parse(parameters[0].ToString(), null, System.Globalization.DateTimeStyles.RoundtripKind);
string format = "dd/MM/yyyy";
if (parameters.Count() > 1)
{
format = parameters[1].ToString();
}
if (parameters.Count() > 2 && !string.IsNullOrWhiteSpace(parameters[2].ToString()))
{
string provider = parameters[2].ToString();
IFormatProvider formatprovider = null;
if (provider.ToLower() == "invariant")
{
formatprovider = CultureInfo.InvariantCulture;
}
else
{
formatprovider = CultureInfo.CreateSpecificCulture(provider);
}
res = datetime.ToString(format, formatprovider);
}
else
{
res = datetime.ToString(format);
}
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, res);
}
catch (Exception)
{
HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "");
}
});
/*
* hbs.RegisterHelper("format2DateTime", (writer, context, parameters) =>
* {
* // parameters : start datetime iso string, end datetime iso string, date time separator, dates separator, dateformat, time format, culture
* try
* {
* string res;
* DateTime datetime1 = DateTime.Parse(parameters[0].ToString(), null, System.Globalization.DateTimeStyles.RoundtripKind);
*
* string datetimeSeparator = " ";
* string datesSeparator = " ";
* string dateformat = "dd/MM/yyyy";
* string timeformat = "hh:mm";
* if (parameters.Count() > 2)
* {
* datetimeSeparator = parameters[2].ToString();
* }
* if (parameters.Count() > 3)
* {
* datesSeparator = parameters[3].ToString();
* }
* if (parameters.Count() > 4)
* {
* dateformat = parameters[4].ToString();
* }
* if (parameters.Count() > 5)
* {
* timeformat = parameters[5].ToString();
* }
* Func< DateTime, string, string> formatDT = (datetime, format) =>
* {
* if (parameters.Count() > 6 && !string.IsNullOrWhiteSpace(parameters[6].ToString()))
* {
* string provider = parameters[6].ToString();
* IFormatProvider formatprovider = null;
* if (provider.ToLower() == "invariant")
* {
* formatprovider = CultureInfo.InvariantCulture;
* }
* else
* {
* formatprovider = CultureInfo.CreateSpecificCulture(provider);
* }
* return datetime.ToString(format, formatprovider);
* }
* else
* {
* return datetime.ToString(format);
* }
* };
* res = formatDT(datetime1, dateformat);
* if (datetime1.TimeOfDay.Ticks > 0)
* {
* res += datetimeSeparator;
* res += formatDT(datetime1, timeformat);
* }
* if (!string.IsNullOrEmpty(parameters[1].ToString()))
* {
* DateTime datetime2 = DateTime.Parse(parameters[1].ToString(), null, System.Globalization.DateTimeStyles.RoundtripKind);
* res += datesSeparator;
* if (datetime1.Date != datetime2.Date)
* {
* res += formatDT(datetime2, dateformat);
* }
* if (datetime2.TimeOfDay.Ticks > 0)
* {
* res += datetimeSeparator;
* res += formatDT(datetime2, timeformat);
* }
* }
* HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, res);
* }
* catch (Exception)
* {
* HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "");
* }
* });
*/
}
/// <summary>
/// Registers the array lookup helper.
/// arguments[0] =
/// arguments[1] =
/// arguments[2] =
/// </summary>
/// <param name="hbs">The HBS.</param>
private void RegisterArrayLookupHelper(HandlebarsDotNet.IHandlebars hbs)
{
hbs.RegisterHelper("lookup", (writer, options, context, arguments) =>
{
object[] arr;
if (arguments[0] is IEnumerable <object> )
{
var en = arguments[0] as IEnumerable <object>;
arr = en.ToArray();
}
else
{
arr = (object[])arguments[0];
}
var field = arguments[1].ToString();
var value = arguments[2].ToString();
foreach (var arrayItem in arr)
{
object member = DynamicUtils.GetMemberValue(arrayItem, field);
if (value.Equals(member))
{
options.Template(writer, (object)arrayItem);
}
}
options.Inverse(writer, (object)context);
});
/*
* hbs.RegisterHelper("arraylookup", (writer, context, parameters) =>
* {
* try
* {
* object[] arr;
* if (parameters[0] is IEnumerable<Object>)
* {
* var en = parameters[0] as IEnumerable<Object>;
* arr = en.ToArray();
* }
* else
* {
* arr = (object[])parameters[0];
* }
*
* var value = parameters[1].ToString();
* var text = parameters[2].ToString();
* var key = parameters[3].ToString();
* foreach (var item in collection)
* {
*
* }
* object res = b[i];
* string c = parameters[2].ToString();
* HandlebarsDotNet.HandlebarsExtensions.
* //HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, res.ToString());
* }
* catch (Exception)
* {
* HandlebarsDotNet.HandlebarsExtensions.WriteSafeString(writer, "");
* }
* });
*/
}