<from>

The element from points to a single token that is the start of a range of tokens to be selected

Formal Definition

   
      (@val | @pos | (@val, @pos))

Defined at: TAN-class-2.rng

Used by: ~tok-ref-range

[Caution]Caution

In a ranged <tok> in a <reassign>, the token referred to by <from> must precede the one referred to by <to>.