[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Way off topic (was: Lisp concrete syntax)
>Not to be a pest or anything, shouldn't this be... > ><sexp> > <car>+</car> > <cdr><car>1</car><cdr><car>1</car><cdr/></cdr></cdr> ></sexp> There are three things we could be notating: * parsing the s-expression source code; * fully expanding the notional LISP lists; * exposing the implementation. The form I gave parses the s-expression. The version you give shows the fully expanded list. And if an implementation used cdr-coding, it would look like my version; if it used explicit nulls, it would look like your version. This is a good example that XML markup is not a data modeling language, but a data-model modeling language :-) The lexical, semantic and implementation structures of a programming language are all different, and a XML document could reflect any of them (or even a mix). Rick P.S. For more on cdr-coding, refer http://www.landfield.com/faqs/lisp-faq/part2/section-9.html xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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