James M. Lawrence wrote:
> 
> * Some syntax restrictions apply for distribution across multiple 
> machines (due to ruby_parser/ruby2ruby being at present the only 
> complete AST toolchain for Ruby).

I missed the 'unparse' method in RedParse which converts a sexp into 
Ruby code.  So RedParse also qualifies as a complete AST toolchain.  My 
apologies to Caleb.
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