Re: camlp4 in toplevel

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Article #75

#75

From: jdn
Date: Thu, 20 Sep 2012 18:12

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On Thursday, September 20, 2012 2:10:26 PM UTC-4, jdn wrote:
> 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.

I'm using Ocaml 4.00 and utop 1.2.1 on a 64bit Ubuntu 12.04 system.

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