Subject: ditroff

From: [email-masked]
Date: Mon, 28 Jul 86 15:25:50 pdt

.       \" In the newest ditroff, number register .! is read-only and
.       \" returns the exit status of the .sy command.  Thus try to
.       \" set .! to 99 and if it is the same, it is the old version.
.       nr .! 99
.       ie \\n(.!=99 \{\
.               if "\\*(.T"aps" \{\
.                       nr MA 100
.                       nr EB 5
.               \}
.       \}
.       \" This is the new version of ditroff
.       el \{\