[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] XML Schema Datatype Questions
I am currently developing a type checker designed to validate data in an instance document corresponding to an XML schema. I have a few questions about the datatype spec I am hoping someone can answer. First question, what is Not A Number in respect to the float/double datatypes? Or, rather, what is it in relationship to a min/max range? If I specify that mininclusive=0 and maxinclusive=INF, then is NAN in that range? What about mininclusive=-3 and maxexclusive=4? Or does NAN need to be specified in the enumeration? (On that note, can the enumeration facet be used to allow values outside the range specified by min/max to be included? Or do enumeration values need to fall within the range? There is no constraint saying that enumeration and min/max values cannot be set together, which leads me to believe that they are combined to describe legal values.) In other words, if I specify a range of values, does NAN ever fall in that range? Or does it need to be specified as a legal value through the enumeration facet? Also relating to float, are the characters case sensitive? Can I use "inf" as a value or does it need to be "INF"? Is "6.22e22" legal? Or does it need to be "6.22E22"? One last question: For the binary datatype, what is the default encoding? According to the encoding facet, it must be either hex or base64, but what happens if the user doesn't specify? If I specify that an element is of type binary, but leave out the encoding facet, what encoding is then used? As far as I can tell, there is no default value for encoding. I would assume hex is default because it is listed first, but it would be nice to know for certain which encoding is truely intended as default. Thanks for any help. 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 unsubscribe, mailto:majordomo@i... the following message; unsubscribe 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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