Using lisp with blocks

[Ozymandias]

Hey guys me again,
I Have A lisp that gives me the ability to generate unique numbers with a stated precurser I.e. 04nwo1-02 -03 -04 etc.
Now the thing that I would like to do with this (although I highly doubt you can) is to be able to insert it into a field inside a block, so that when I insert a block each time you get a unique number.
its basically a desk numbering system. I have the blocks already set up with a field to state the floor number but I need to be able to have the area and number (4 areas in total) so if you have another idea that would be helpfull I would greatly appreciate it as it would save me days renumbering every desk by hand.

[Ozymandias]

I take it from the silence no one knows how this can be done? the only other way I can think of is to have all the numbers in an external xcel sheet and refer blocks individually (attach as attribute) to the references I know this can be done but dont know how to do that.
If no one knows are there any books out there that could help ?

[rkmcswain]

So you just want to insert a block and have an attribute filled out using an incremental number?

That shouldn't be too difficult. You could store the last (or next) number in a dictionary - and just refer to it when you insert the next block.

[Ozymandias]

ive not come accross dictionarys and refering to them before .
I have just looked it up in the F1 but its not very helpfull on the subject. Thanks for the help.. ill continue to look around to see what you are refering to.

[lpseifert]

Look here for an explanation of dictionaries
http://www.afralisp.net/lisp/dict.htm

[Ozymandias]

thanks definately worth investigating..