🚀 go-pugleaf

Does anyone have or know of a set of PostScript procedures which will
print strings which have encoded within them font changes, superscript
and subscripts, etc., and also calculate the lengths of same?

I am writing some PS plotting routines (and modifying those from the S
language) and wish to be able to label the plots with strings containing
Greek symbols, simple super- and subscripts, etc.  It would be easiest
to do this by sending a single string for the label, with the font
changes and super/subscript encoded within it in some fashion.  The
string would be printed with a substitute for the "show" operator which
would properly decode the string.  I also need to be able to calculate
the string width, so that I can center or right justify it.

I have written a simple set of procedures to do all of the above EXCEPT
calculate the string width, but they are by no means elegant, and I was
wondering if anyone has worked this out before.

Thanks.  Please email replies!

Martin Wittmann			mrwittma@phoenix.princeton.edu