Subject: Re: [xsl] Help please: question on xml's schema and xslt From: "L2L 2L emanuelallen@xxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Fri, 1 Aug 2014 13:41:49 -0000 |
E-S4L > On Aug 1, 2014, at 9:12 AM, "Wolfgang Laun wolfgang.laun@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: > > On 01/08/2014, L2L 2L emanuelallen@xxxxxxxxxxx > <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote: >> I have ask on many different forums; visionzone, sitepoint, oreilly, even >> ask an author of a book, but receive no reply. I have even try >> stackexchange. This doesn't make sense.... > >> ----question 2------- >> >> Is this legal: >> >> <?xml version="1.0" encoding="UTF-8"?> <xs:schema >> xmlnss="http://www.w3.org/2001/XMLSchema"> <xs:annotation> >> <xs:documentation> I'm warping a name simpleType name nameType in an element >> that have the attribute type with the value of nameType. Is this legal; to >> warp a name type as so: </xs:documentation> </xs:annotation> <xs:element >> name="name" type="nameType"> <xs:simpleType name="nameType"> <xs:restriction >> base="xs:string"> <xs:length value="25"/> </xs:restriction> </xs:simplyType> >> </xs:element> </xs:schema> > > (Indendation is the politeness of list users.) > > No it is NOT - Element 'name' has both a 'type' attribute and a > 'anonymous type' child. Only one of these is allowed for an element. > > Use this; > > <xs:element name="name" type="nameType"/> > <xs:simpleType name="nameType"> > <xs:restriction base="xs:string"> > <xs:length value="25"/> > </xs:restriction> > </xs:simpleType> > >> -----question 3-------- >> >> What are extension and restriction type? > > Perhaps risk a short look on the XML Schema spec: > http://www.w3.org/TR/xmlschema11-1/ > > [Definition:] A complex type definition which allows element or > attribute content in addition to that allowed by another specified > type definition is said to be an extension. > > [Definition:] A type defined with the same constraints as its B7base > type definitionB7, or with more, is said to be a restriction. The > added constraints might include narrowed ranges or reduced > alternatives. Given two types A and B, if the definition of A is a > B7restrictionB7 of the definition of B, then members of type A are > always locally valid against type B as well. > >> >> ----question 4--------- >> >> First question: > > (Actually the 4th.) > >> >> Can I place an extension on a restriction type? >> >> And if so, how? Via what method? Directly? Via reference? Both? >> >> And if so for both, what other ways? > > The excellent Primer on XML Schema http://www.w3.org/TR/xmlschema-0/ > contains numerous examples for both. > >> Second question: > > (Actually it's the 5th.) > >> >> targetNameSpace is to set a name space for the xml element in my schema? yes >> or no then an explanation comment please. > > This isn't well formulated. If you mean "for the XML elements defined > by <xs:element>" then the answer is: "yes, but not only for these, > also for <xs:complextType>, <xs:simpleType> and other Schema > components defined and named (!) in that XML schema. > >> >> a xmlnssi="uri" is to set the prefix for the xsi namespace and a >> xsi:noNamespaceSchemaLocation="uri" is to set the location of my schema? yes >> or no, then a feedback comment please. > > You mean "xmlns:xsi=...". > > a) No, it defines the prefix "xsi" for the namespace uniquely > identified by "uri". > > b) Yes, but only if you associate the prefix xsi to this URI: > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" > >> >> is the targetNameSapce needed... I find it non-necessary to do when it >> can(by what I'm reading) define top level element and complex type(another >> question is that by definning type level complex type, do that also mean >> that type level complex when use in a element that is nested in another >> element gain the namespace too?). I find it unnecessary to use >> targetNameSapce when it doesn't cover all element being defined in the >> schema. > > No, you need not use targetNameSpace. You may run into difficulties if > you try use different XML schema definitions without target namespaces > but with conflicting definitions. > > -W > >> >> informational feedback please anyone! >> >> >> >> E-S4L > Where's the link button W? WHERE'S LIKE BUTTON W!!!!?????
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