[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XML vs the Dreaded Whitespace
Peter Murray-Rust writes: > As a corollary: Is anyone testing the ESIS output of the current crop of > XML parsers (4 Java + nsgmls, I think)? Regardless of the whitespace model > or the value of xml:space they should all produce identical ESIS (right?) > If not, then one or more is wrong. And all applications should (IMO) be > prepared to work with ESIS which I think is isomorphous with a WF XML > document. There are quite a few more XML parsers out there, including at least one in TCL -- see http://www.sil.org/sgml/XML.html#xmlSoftware As for ESIS, there are some problems that we'd have to overcome first: 1) How should empty elements be represented? Right now, Ælfred generates a startElement event immediately followed by an endElement event. 2) How should the XML declaration be represented? Should it appear as a processing instruction, or should it be ignored? 3) How should space in element content be handled? According to the spec, a DTD-aware parser should handle whitespace in element content differently from whitespace in mixed content (Ælfred just ignores whitespace in element content right now). 4) DTD-aware and non-DTD-aware parsers will handle whitespace in attribute values differently. Non-DTD-aware parsers will treat all attributes as CDATA, but DTD-aware parsers will treat tokenised attributes specially, by stripping all leading an trailing whitespace, and normalising internal whitespace to single spaces. All the best, David -- David Megginson ak117@f... Microstar Software Ltd. dmeggins@m... http://home.sprynet.com/sprynet/dmeggins/ 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/ 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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