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 :Although I was the one who originally complained about the example, I'm not sure I would agree with you. The reader might not (and quite probably need not) know what the code does, it might however be helpful to know what code from a given language looks like (it's been years since I could program in LISP or COBOL, but I still can, and might still find it useful to be able to, recognise what they look like  ditto for Fortran, which I never could program in in the first place). This means that if they come across code in a given, unknown, language, they can look up likely candidates in Wikipedia, see if they can find one with similar-looking code, and thence find a book on the language that it turns out to be. I think such reference-use fall within the remit of an encyclopaedia (though I could be wrong). ''''(P) "