Multiple character "character constants"

[chris at umcp-cs.UUCP]

Troff uses two-character character constants for the same reason it
uses two characters for everything:  they happen to fit nicely into
an int on a PDP-11.  This makes troff fit on a PDP-11.  (It also speeds
things up considerably over using two "char"s.)
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci
UUCP:	{seismo,allegra,brl-bmd}!umcp-cs!chris
CSNet:	chris at umcp-cs		ARPA:	chris.umcp-cs at UDel-Relay