Misbehaved EPS

[svmarti]

I have tried to embed EPS-files into my own Postscript and get from time to time error when trying to wrap the EPS with save/restore

It seems that the EPS somehow makes my restore crash.
Without save/restore pair around the EPS it seems to work fine, but as i try to make an C-program that should be able to include "any" EPS into a PS file i would like to know if there is any technique to save/restore the graphic context without any EPS-file beeing able to "destruoy" my restore.

I have not analyzed the huge EPS thorougly but i have two guesses of what might be wrong:
- restore beeing somehow redefined
- stack left unbalanced.

Is there a way to make sure that
"restore" still is the "original" restore
and that the EPS does not litter the stack with left-over objects.

I guess this is basic PS i should know, but i am no proficient PS programmer.
Also i HAVE studied other articles on preparing EPS-files (removing binary bytes before !PS and so on).

Kind regards from Oslo-Norway

 

[tgreer]

Here are the procedures I use for "EPS housekeeping":

/StartEPSF
  { userdict begin
      /PreEPS_state save def
      /dict_stack countdictstack def
      /ops_count count 1 sub def
      /setpagedevice /pop load def
      /showpage {} def
  } bind def
  
/EndEPSF
  {   count ops_count sub {pop} repeat
      countdictstack dict_stack sub {end} repeat
      PreEPS_state restore
    end  % userdict
  } bind def

Call "StartEPSF" before you include or "run" an EPS. Call "EndEPSF" afterwards.



Thomas D. Greer

http://www.tgreer.com

Providing PostScript & PDF
Training, Development & Consulting

 

[svmarti]

Thanks!
This did help