to accomodate a method used for processes that require additional
spacing between contacts for large via arrays; this requires
distinguishing between large and small areas to output vias, and
so requires use of "and" and "and-not" before "squares". This
highlights the arbitrary nature of this routine, which probably
works better getting data from cifinput, or not at all (i.e., it is
used when reading LEF, but it is known that the LEF read routines
would be better implemented by running input through CIFGen(). If
that were done, then this problem would not come up).
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