TAN-class-3 global variables, keys, and functions summarized

tan:feature-test-to-groups($attr-feature-test as xs:string?) as element()*

Input: any value of @feature-test

Output: the value converted into a series of <group>ed <item>s, observing the accepted syntax for this attribute

Example: "a b + c" - >

<group>

<item>a</item>

</group>

<group>

<item>b</item>

<item>c</item>

</group>

No variables, keys, functions, or named templates depend upon this xsl:function.

Relies upon tan:normalize-text .