putstrf expr print \fIstr\fR in a fixed width
putnum expr print \fInum\fR
putnumf expr print \fInum\fR in a fixed width
-.\" addtoseq literal add msg to sequence (LBL option)
putlit expr print \fIstr\fR without space compression
zputlit expr print \fIstr\fR without space compression;
\fIstr\fR must occupy no width on display