SXZone
An SXZone object represents a syntax zone in the current TextActionContext.
- range: returns the Range this zone spans
- text: returns the string within this zone
- parent: returns the SXZone parent for this zone; may return
null if a top-level zone
- childCount: returns the number of immediate children contained within this zone
Returns an SXZone. Accepts integer index from 0 to zone.childCount - 1.