+
+# The Sun console was documented in the wscons manual page (apparently
+# unrelated to the "wscons" used by some of the BSDs).
+#
+# https://illumos.org/man/4D/wscons
+# https://www.bitsavers.org/pdf/sun/sun1/800-0345_Sun-1_System_Reference_Manual_Jul82.pdf
+#
+# The early cmdtool and shelltool programs in Sun's NeWS were based on this.
+# After NeWS was discontinued, XView provided a similar shelltool, with an
+# incomplete manual page. Presumably the intent was to document features of
+# shelltool not in wscons:
+#
+# https://manpages.ubuntu.com/manpages/bionic/en/man1/shelltool.1.html
+# https://manpages.ubuntu.com/manpages/bionic/en/man1/cmdtool.1.html
+#
+# The wscons manual page and the XView source show that it had no feature that
+# could be used in ncurses u6/u7/u8/u9 extensions. Interesting, the XView
+# source shows that its shelltool could tell the host what a particular mode
+# was set to. But neither that nor its CSI..t controls support u6/u7/u8/u9.
+#