show
appendport
buffer
break
closeinput
closeoutput
closeport
case
clearbuf
default
display
do
downcase
else
elseif
endcase
endif
endwhile
exec
execport
exit
fields
get
getenv
if
inputport
lany
lbreak
lspan
match
noop
not
outputport
print
protect
verbatim
put
rany
rbreak
rspan
set
substitute
then
upcase
while
zvar