Sometimes you need to generate custom XML tags. web2py provides TAG, a universal tag generator.
Arguments "a", "b", and "d" are automatically escaped; use the XML helper to suppress this behavior. Using TAG you can generate HTML/XML tags not already provided by the API. TAGs can be nested, and are serialized with str(). An equivalent syntax is:
If the TAG object is created with an empty name, it can be used to concatenate multiple strings and HTML helpers together without inserting them into a surrounding tag, but this use is deprecated. Use the CAT helper instead.
Self-closing tags can be generated with the TAG helper. The tag name must end with a "/".
Notice that TAG is an object, and TAG.name or TAG['name'] is a function that returns a temporary helper class.
# Example 1
{{=TAG.name('a', 'b', _c='d')}}
<name c="d">ab</name>
# Example 2
{{=TAG['name']('a', 'b', c='d')}} {{=TAG['link/'](_href='http://web2py.com')}}
