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+#------------------------------------------------------------------------------
+# $File: sccs,v 1.8 2020/06/20 21:32:52 christos Exp $
+# sccs: file(1) magic for SCCS archives
+#
+# SCCS v4 archive structure:
+# \001h01207
+# \001s 00276/00000/00000
+# \001d D 1.1 87/09/23 08:09:20 ian 1 0
+# \001c date and time created 87/09/23 08:09:20 by ian
+# \001e
+# \001u
+# \001U
+# ... etc.
+# Now '\001h' happens to be the same as the 3B20's a.out magic number (0550).
+# *Sigh*. And these both came from various parts of the USG.
+# Maybe we should just switch everybody from SCCS to RCS!
+# Further, you can't just say '\001h0', because the five-digit number
+# is a checksum that could (presumably) have any leading digit,
+# Fortunately we have regular expression matching:
+0 string \001h
+>2 regex [0-9][0-9][0-9][0-9][0-9]$
+>>8 string \001s\040 SCCS v4 archive data
+>2 string V6,sum= SCCS v6 archive data