dust template for nested math condition

dust template for nested math condition

I want to output html table with 4 entries for each row using dust templates.
here is the template :
var compiledtlist = dust.compile(
"<table class='table'>" +
"{#data}" +
"{@math key=\"{tagid}\" method=\"mod\" operand=\"4\"}" +
"{@eq value=0}" +
"<tr><td><button class='btn btn-mini btn-info
tag'>{tname}</button>&nbsp;x&nbsp; <span class='badge
badge-info'>10</span> <br /><p>{tdesc}</p></td>" +
"{/eq}" +
"{@eq value=3}" +
"<td><button class='btn btn-mini btn-info
tag'>{tname}</button>&nbsp;x&nbsp; <span class='badge
badge-info'>10</span> <br /><p>{tdesc}</p></td></tr>" +
"{/eq}" +
"{@default}" +
"<td><button class='btn btn-mini btn-info
tag'>{tname}</button>&nbsp;x&nbsp; <span class='badge
badge-info'>10</span> <br /><p>{tdesc}</p></td>" +
"{/default}" +
"{/math}" +
"{/data}" +
"</table>"
, "taglist");
console.log(compiledtlist);
dust.loadSource(compiledtlist);
dust.render("taglist", { data: data }, function (err, out) {
console.log(err);
console.log(out);
$('#tagstable').html(out);
});
and the data is :
[
{
"tagid":10,
"tname":"sql server",
"tdesc":"As a database, it is a software product whose primary
function is to store and retrieve data as requested by other
software applications, be it those on the same computer or those
running on another computer across a network (including the
Internet)."
},
{
"tagid":9,
"tname":"entity framework",
"tdesc":"ADO.NET Entity Framework (EF) is an open source[1]
object-relational mapping (ORM) framework for the NET Framework"
},
{
"tagid":8,
"tname":"spring",
"tdesc":"he Spring Framework is an open source application framework
and inversion of control container for the Java platform"
},
{
"tagid":7,
"tname":"struts",
"tdesc":"Apache Struts is an open-source web application framework
for developing Java EE web applications. It uses and extends the
Java Servlet API to encourage developers to adopt a
model–view–controller (MVC) architecture."
},
{
"tagid":6,
"tname":"asp.net mvc",
"tdesc":"The ASP.NET MVC Framework is an open source web application
framework that implements the model–view–controller (MVC) pattern."
},
{
"tagid":5,
"tname":"asp.net",
"tdesc":"ASP.NET is a server-side Web application framework designed
for Web development to produce dynamic Web pages. It was developed
by Microsoft to allow programmers to build dynamic web sites, web
applications and web services."
},
{
"tagid":4,
"tname":"xml",
"tdesc":"Extensible Markup Language (XML) is a markup language that
defines a set of rules for encoding documents in a format that is
both human-readable and machine-readable"
},
{
"tagid":3,
"tname":"javascript",
"tdesc":"JavaScript (JS) is an interpreted computer programming
language.[5] As part of web browsers, implementations allow
client-side scripts to interact with the user, control the browser,
communicate asynchronously, and alter the document content that is
displayed"
},
{
"tagid":2,
"tname":"java",
"tdesc":"Java is a general-purpose, concurrent, class-based,
object-oriented computer programming language that is specifically
designed to have as few implementation dependencies as possible."
},
{
"tagid":1,
"tname":"c#",
"tdesc":"C#[note 1] (pronounced see sharp) is a multi-paradigm
programming language encompassing strong typing, imperative,
declarative, functional, procedural, generic, object-oriented
(class-based), and component-oriented programming disciplines"
}
]
Unfortunately nothing is returned by the template except table tags.
what am i missing here ?
Is the math tag wrong ?