Re: question to `case'

[Barry Margolin <barmar@alum.mit.edu>]

In article <upsxqiliv.fsf@sdm.de>, Klaus Berndl <klaus.berndl@sdm.de> 
wrote:

> Can i use variables for the keys of the KEY-CLAUSES?

No.  The keys are actually a list of constants.  If it were evaluated, a 
list would be treated as a function call.

> Of course the notation above can not work but my question is: What is right
> notation?

Use 'cond' instead:

(let ((type (tree-node->type node)))
  (cond (eq type my-bucket-node-type) ...)
        (eq type my-tag-node-type) ...)))

-- 
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
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