[Groff] Unformatted diversion?

[Miklos Somogyi]

Hi,

I need to write a manual for PS routines, so I invested time in groff  
macros with PS capabilities.
One of them accepts the name of an external PS file that may contain  
images or anything one may want.
It is working well, and when this external file is big, it better  
stays external.
However, many times they are only a few lines long, and these would  
better stay within the groff source.

a) Again, I have problem with "as is" or "raw". I wished for an  
unformatted diversion, but so far
I could not find a solution. E.g.

       .di xx
       .br
       \!aaaa
       \!bbbb
       \!cccc
       .br
       .di

merges the aaaa ... cccc lines just like without "\!" and they are  
regarded as a single string to print in the output.
Is there a way to define a diversion that just works raw?

b) If the above is possible, then is it possible too that my macro  
seeing a parameter can decide that
this must be a file name or the name of a macro (that contains my raw  
material)?

Thank you,

Miklos