2022年11月17日 · XSD is better at catching errors than XML. An XSD defines elements that can be used in the documents, relating to the actual data with which it is to be encoded. for eg: A date that is expressed as 1/12/2010 can either mean January 12 or December 1st. Declaring a date data type in an XSD document, ensures that it follows the format dictated by XSD.

2010年8月4日 · The XSD file defines which elements and attributes are permitted and in which order. In general XML is a metalanguage. XSD files define specific languages within that metalanguage. For example, if your XSD file contains the definition of XHTML 1.0, then your XML file is required to fit XHTML 1.0 rather than some other format.

2016年12月8日 · xsd and xsi Similarities. Both are XML namespace prefixes, abbreviations for an XML namespace. Both are, as are all namespace prefixes, arbitrarily named; other namespace prefix abbreviations could equally well be used. However, both prefixes are conventional and therefore recommended. (An also-conventional alternative to xsd is xs.) xsd and ...

2009年11月18日 · I'd write an XML Schema (XSD) file to define the structure of the XML document. xs:annotation and xs:documentation tags can be included to describe the elements. The XSD file can be transformed into documentation using XSLT stylesheets such as xs3p or tools such as XML Schema Documenter. For an introduction to XML Schema see the XML …

Essentially, they are all about content model of XSD elements (as well as other XSD components that lead to elements: complexTypes, element/attribute groups). It seems, there are two approaches here: To show what a result content model …

2012年2月11日 · XSD - Making elements optional and mandatory in an XML schema. Hot Network Questions Microeconomics ...

The alternative formulation of the question added in a later edit seems still to be unanswered: how to specify that among the children of an element, there must be one named child3, one named child4, and any number named child1 or child2, with no constraint on the order in which the children appear.

2013年3月11日 · @C.M.Sperberg-McQueen, I'm not sure I understand your point. xs:int is a type with a range, how it's stored is irrelevant to the XSD and anything that hard codes "int" as a 32 bit signed integer in memory is asking for problems if, for example, a different XSD is chosen that says an int has a range different to the range as defined in the w3c XSD.

The following post asks how to indicate that an element is the root element in an XML schema: Is it possible to define a root element in an XML Document using Schema?

2011年7月25日 · I was wondering how to make a regular expression for any character except * and + . I've tried ([^*+]) and (\\[^*+]) but both expressions seem to be incorrect. Can someone please point me in the right