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Intriguing XPL coding
- Subject: Intriguing XPL coding
- From: Harry Binswanger hb@xxxxxxxx
- Date: Tue, 02 Dec 2008 13:35:03 -0500
In U2, the much appreciated UNPUTCR routine has this code, near its start,
using square brackets for guillements:
[IF0+[VA$WS]<1!0+[VA$WS]+[VA$XD]>2]
It is the introduction of the zero which I don't understand. Why does it
have any effect, especially since the earlier version of UNPUTCR didn't use it:
[IF[VA$WS]<1![VA$WS]+[VA$XD]>2]
Something very cagey is going on here. What is it?
Harry Binswanger
hb@xxxxxxxx