Consider an x-expression that represents an XML tag, so it has the general form
'(tag ((attr-name "attr-value") ... ) content ...) The attributes or content might be omitted, of course. When I recursively process these expressions, I start by decomposing the x-expression into components: tag ((attr-name "attr-value") ... ) (content ...) The problem that surfaces in a recursive-processing context is that the list of content might have the same form as an attribute expression, e.g., ((field-1 "value-1") (field-2 "value-2")) ((p "some text") (p "some more text")) *Is there a test I could use to reliably disambiguate between these two cases*, short of creating a new struct for x-expressions? Seems like I'm overlooking some middle ground.
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