;Process 'Term' portion of XML document
; Input : DATA - Array reference from which the 'File' element
; begins (closed root)
; EINDX - Element index array (closed root)
; AINDX - Attribute index array (closed root)
; SYSPTR - Pointer to HDIS SYSTEM file (#7118.21)
; FFPTR - Pointer to HDIS FILE/FIELD file (#7115.6)
; Derived from 'FileNumber' & 'FieldNumber' element
; ERRARR - Error array (closed root)