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Re: difficulty of writing translators



    >> Someone needs to think about this carefully, and see how easily
    >> we can mix Tcl's semantics with Scheme's semantics.  I expect
    >> there are many strategies; whoever decides to start coding gets
    >> to make the decisions.

    Bruce> This has already been done once, with Rush.  (Rush
    Bruce> translated to a modified scheme, in order to accommodate
    Bruce> variable tracing, which is important in Tcl.)  I don't
    Bruce> think that Rush was ever released, but the Tcl FAQs have
    Bruce> references to papers on it, which describe the strategies
    Bruce> they used.

Rush's author admitted to me that Rush was really vaporware and that
he wished RMS had not picked up on it so much.  Rush was the reason
RMS promised Tcl-on-top-of-Guile.