camlp4 in toplevel

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Article #74

#74

From: jdn
Date: Thu, 20 Sep 2012 18:10

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I'm interested in using camlp4 for a DSL.  To get up to speed I was hoping to use camlp4 in the toplevel to expand quotations to help with the learning curve.  I can't seem to get this to work so I must be missing something, apologies if this is a very simple question.  Here is a snippit of what I'm doing and the error:

utop $ #camlp4o;;
utop $ open Camlp4.PreCast;;
utop $ let q = <:str_item< let f x = x >>;;
Error: While finding quotation "str_item" in a position of "expr": There is no quotation expander available.                                                               Camlp4: Uncaught exception: Not_found 

I've tried many different things and done a google search but I can't figure out the problem.  Any hints are greatly appreciated.

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Subject: camlp4 in toplevel
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