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If you want X, you know where to find it (was Re: do...until wisdom needed...)

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Douglas Alan wrote:>It's a very modern language (more modern in some ways than Python,>multimethods and a sophisticated meta-object protocol being examples>of two very modern features that it supports),Yet more things I don't know about.  *Sigh*.  OTOH, if you wantto know about details of structural biology data structures anduse cases .. I'm there!>Well, yes, you could use a procedural macro (hygienic, or otherwise)>to convert Pascal code to Python, but it would be one really big hairy>macro, and I don't think that be a good idea.Someone else pointed out to me in private mail a converter fromFortran to Lisp.  I think would prefer doing that by calling afunction with a string parameter and getting back, say, a moduleobject with the right function interfaces and constants defined.> More modestly, you>might define two macros, "let" and "set" so that>>   let x = 3This would at present raise a SyntaxError exception.  I supposebeforehand there would be a statement to make "let" be knownas a new keyword?  How do linters and other code checking utilitieswork on this sort of mutability?  After all, they don't rightnow do a good job parsing escaped ()s inside of regexps, whichis another example of a little language embedded inside of abigger (and different) one.                    Andrewdalke at acm.org

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