🚀 go-pugleaf

I am posting the following for David Frenkiel.  Please respond to him
via email.

Mark Montague
plph@caen.engin.umich.edu

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From: dfl@math.tau.ac.il (David Frenkiel)
Organization: School of Math & CS - Tel Aviv University , Tel Aviv , ISRAEL.

< please post this for me under the subject header "Printer fonts - help" >

Hi

I need to find out whether or not a postscript printer has a certain
font.  In case it doesn't, I use a bitmap version of the font.
Currently, I use a method I saw in the FAQ, which searches for the
font in the FontDirectory, and defines a symbol to be equal either to
the font, or to its bitmap version, according to the result of this
search.  There are two problems with this method:

1. It does not work for printers with disks.
2. Ghostview and ghostscript always fail on FontDirectory searches, so
   I get the default "ugly" font.

If anyone knows how I can accomplish this in a different way, which
bypasses these two problems, I'd appreciate an email response.  
I work on a system with a print spooler, so the printer can't
talk back to me.  Enclosed are the definitions I currently use.

%% condfind uses one argument and returns true if it is a known font 
/condfind { dup FontDirectory exch known } def;
%% altfind uses three arguments, and defines the middle one to be
%% either the top argument, if it is a known font, else the bottom one.
/altfind { condfind {def} {pop exch def } ifelse } def 

and after downloading a bitmap font called, e.g., bitmap100, which
represents Symbol-Bold

/bitmap100 /font100 /Symbol-Bold altfind
font100 findfont ......


		Thanx

			David

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