[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Yet another niggling XML syntax question
John Cowan wrote: > > Right -- this would violate _validity_ constraints (but a nonvalidating > > parser should accept it just fine): > > > > <!DOCTYPE Bubba [ > > <!ENTITY % Part1 "<!ELEMENT "> > > <!ENTITY % Part2 " Bubba ANY>"> > > <!-- next is a validity error in both internal > > and external subsets --> > > %Part1;%Part2; > > ]> > > <Bubba></Bubba> > > > > It's not 100% clear to me whether the reference to Part2 violates > the WFC "PEs in Internal Subset" To restate your message slightly: The problem with %Part2; is that the markup unit starts with %Part1; and ends with %Part2;, which is something parsed entities aren't supposed to do. Note: The only reason you can get away with <!ENTITY % Part3 "%Part1;%Part2;"> is that section 4.3.2 of the XML 1.0 standard says that all internal parsed entities are by definition well formed. It's apparently an exception to the "proper nesting" rule, meant spe- cifically to allow cutting and pasting of parameter entities. This is also the motivation for suppressing the addition of spaces before and after the entities inside the quotation marks above. Would anyone agree that the standard is not altogether clear on this point? (Tim, if my comments are correct, it might make sense to edit them, in some form, into your annotated version of the spec.) -- Richard Goerwitz PGP key fingerprint: C1 3E F4 23 7C 33 51 8D 3B 88 53 57 56 0D 38 A0 For more info (mail, phone, fax no.): finger richard@g... 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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