Lisp for extracting data

[Paul Kreuger <pkreuger@pi.net>]

I want to make a lisp routine to extract the attribute data from a block 
and put it into a TXT file with the same name as the drawing. I know the 
name of the block and if this block is more than once in my drawing 
there should be an error message.

Can anybody help me with:

- Selecting the block by name
- Making this error message
- or maybe a routine that looks like this one

Thanks very much!

Paul Kreuger

pkreuger@pi.net