dnl - PPROPERTIES:
dnl * )LABEL[N].
dnl * summary statistics and formats?
-dnl - Are string ranges a thing?
dnl
dnl Features not yet tested:
dnl - Parsing (positive and negative)
dnl - Test VLABELS.
dnl - Test WEIGHT and adjustment weights.
dnl - Test PCOMPUTE and PPROPERTIES.
+dnl - EMPTY=INCLUDE For string ranges.
dnl - Summary functions:
dnl * Separate summary functions for totals and subtotals.
dnl - CATEGORIES:
-dnl * THRU
+dnl * THRU (numeric ranges)
+dnl * THRU (string ranges)
dnl * OTHERNM
dnl - FORMAT:
dnl * MINCOLWIDTH, MAXCOLWIDTH, UNITS.