Quest for DEC LPS-40 Documentation

[Tony Duell]

> 
> >>>>> "John" == John C Ellingboe <john at guntersville.net> writes:
> 
>  John> Also the following related documentation would be nice to have
>  John> but not all that necessary.
> 
>  John> Postscript Language Tutorial and Cookbook AA-HL86A-TE
> 
>  John> Postscript Language Reference Manual AA-HL87A-TE
> 
> I don't remember those as DEC publications or DEC part numbers.  But
> those titles sounds like Adobe books from that era, which may still be
> available for all I know.  Oversized paperbacks; the tutorial is blue,
> the reference manual is red.  Very nice books, crucial to have if you
> want to write your own PostScript.

There's also 'Postcript Language Program Design', which is green. 

The first 2 were certainly available a few years ago when I got my first 
Postscript printer. I found the last one in a second-hand bookshop, I've 
never seen it new.

> 
> (Then again, you could just learn Forth first, then PostScript can
> almost be picked up by inspection.)

Well, they're both stack-based languages, but there are significant 
differences. In general, Forth only lets you push integers onto the 
stack, Postscript (and RPL) allow you to push various data types.

-tony