A2TDL: Amrita2 Template Definition Languge

using A2TDL with HTML template

sample source

--- ../sample/spec/a2tdl.rb --- 
require "amrita2/template"
require "amrita2/a2tdl"
include Amrita2

class PO
  def title
    "hello world"
  end

  def body
    { 
      :amrita2=>'Amrita2',
      :ruby=>['http://www.ruby-lang.org/','Ruby' ]
    }
  end
end

TEMPLATE_TEXT = <<END
<html>
   <body>
      <h1 id='title'>title will be inserted here</h1>
      <div id='body'/>
   </body>
</html>
END


tmpl = TemplateText.new(TEMPLATE_TEXT) do
  Amrita2::define_template_spec do 
    dynamic_element(:title)
    div(:body, :generate_template=>true) do 
      em(:amrita2)
      span(' is a html template libraly for ')
      a_link(:ruby)
    end
  end
end
tmpl.expand(STDOUT, PO.new)
output
<html>
   <body>
      <h1 id='title'>hello world</h1>
      <div id='body'>
        <em id='amrita2'>Amrita2</em>
        <span> is a html template libraly for </span>
        <a href='http://www.ruby-lang.org/' id='ruby'>Ruby</a>
      </div>
   </body>
</html>

description

div(:body, :generate_template=>true) do 
  em(:amrita2)
  span(' is a html template libraly for ')
  a_link(:ruby)
end

This fragment inserted in Template Spec is a A2TDL definition.

The top level of A2TDL must be div or html desribed below. It can have any tags.

If the first paramater is a Symbol, it means that the element is dynamic.

If the first paramater is a String, it is a static.

There are many Macros in A2TDL.

div
(not documented)
html
(not documented)
a_link
(not documented)
text_field
(not documented)
hidden_field
(not documented)
password_field
(not documented)
submit
(not documented)
check_box
(not documented)
select
(not documented)
radio_buttons
(not documented)
erb
(not documented)
grid_form
(not documented)
simple_table
(not documented)
simple_calender
(not documented)

using A2TDL without HTML template

A2TDL has a Macro html for top level.

Using it, you can use Amrita2 without HTML template.

--- ../sample/spec/a2tdl_hello.rb --- 
require "amrita2/template"
require "amrita2/a2tdl"
include Amrita2

tmpl = Template.new do
  Amrita2::define_template_spec do 
    html do 
      title('hello world')
      div(:body, :generate_template=>true) do 
        em(:amrita2)
        span(' is a html template libraly for ')
        a_link(:ruby)
      end
    end
  end
end

data = { 
  :body => { 
    :amrita2=>'Amrita2',
    :ruby=>['http://www.ruby-lang.org/','Ruby' ]
  }
}
tmpl.expand(STDOUT, data)
output
<html>
<head>
  <title>hello world</title>
</head>
<body>
  <h1>hello world</h1>
  <div id='body'>
    <em id='amrita2'>Amrita2</em>
    <span> is a html template libraly for </span>
    <a href='http://www.ruby-lang.org/' id='ruby'>Ruby</a>
  </div>
</body>
</html>