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Topic: XML namespace

	Namespace (computer science) - Wikipedia, the free encyclopedia
		In programming languages, namespaces are scopes that use the enclosing nature of the scope to group logically related identifiers under a single identifier.
		Unlike C++, namespaces in Java are not hierarchical as far as the syntax of the language is concerned.
		An XML namespace does not require that its vocabulary be defined, though it is fairly common practice to place either a DTD or an XML Schema defining the precise data structure at the location of the namespace's URI.
	en.wikipedia.org /wiki/XML_namespace (967 words)

	rpbourret.com - XML Namespaces FAQ
		An XML namespace declaration remains in scope for the element on which it is declared and all of its descendants, unless it is overridden or undeclared on one of those descendants (see questions 4.5, 4.6, and 4.8).
		This is because the declaration that associates the foo prefix with the http://www.bar.org/ namespace occurs on the B element, overriding the declaration on the A element that associates it with the http://www.foo.org/ namespace.
		XML namespace declarations that are made on the root element are in scope for all elements and attributes in the document.
	www.rpbourret.com /xml/NamespacesFAQ.htm (15687 words)

	RFC 3076 (rfc3076) - Canonical XML Version 1.0 (Site not responding. Last check: 2007-10-22)
		XML canonicalization is designed to be useful to applications that require the ability to test whether the information content of a document or document subset has been changed.
		The attributes and namespaces associated with an element are not considered to be child nodes of the element, but they are associated with the element by inclusion in the element's attribute and namespace axes.
		However, the namespace URI was selected as the primary key because this is closer to the intent of the XML Names specification, which is to identify namespaces by URI and local name, not by a prefix and local name.
	www.faqs.org /rfcs/rfc3076.html (5964 words)

	Namespaces in XML
		XML namespaces differ from the "namespaces" conventionally used in computing disciplines in that the XML version has internal structure and is not, mathematically speaking, a set.
		A default namespace is considered to apply to the element where it is declared (if that element has no namespace prefix), and to all elements with no prefix within the content of that element.
		In XML documents conforming to this specification, the names of all qualified (prefixed) attributes are assigned to the global attribute partition, and the names of all unqualified attributes are assigned to the appropriate per-element-type partition.
	www.w3.org /TR/REC-xml-names (2343 words)

	The Cover Pages:
		If an "unprefixed attribute name" >is really not in any namespace, then it would be impossible for application >code to execute an affirmative comparison against the name, and it would be, >for similar reasons, impossible to write xsl patterns which addressed the >attribute.
		The most common and reasonable-sounding answer is, "it's in the namespace of the html:a element".
		For the purposes of many applications, that might be equivalent to being in the html namespace; but that interpretation isn't compulsory.
	xml.coverpages.org /namespacesBray19990201.html (437 words)

	DCMI Namespace Policy
		An XML namespace [XML-NAMES] is a collection of names, identified by a URI reference [RFC2396], that are used in XML documents as element types and attribute names.
		The use of XML namespaces to uniquely identify metadata terms allows those terms to be unambiguously used across applications, promoting the possibility of shared semantics.
		For example, it was proposed that different DCMI namespaces might be used to partition DCMI elements from DCMI qualifiers, or to indicate that a particular term was originally defined by a particular community or within a particular domain.
	dublincore.org /documents/dcmi-namespace (1226 words)

	XML Namespace Catalog Format
		An XML Namespace Catalog serves as a text description of an XML Namespace [1] and includes links to resources associated with the namespace such as schemata, stylesheets and/or other resources associated with the namespace URI.
		An XML Namespace Catalog is designed to be suitable for service as the body of a resource returned by deferencing a URI serving as an XML Namespace name.
		The XML Namespace Catalog 1.0 DTD has been produced as an extension of XHTML Basic 1.0 [5].
	www.openhealth.org /XMLCatalog (467 words)

	XML.com: XML Namespace Processing in Apache
		Such an API is provided by XML libraries including expat and libxml2, which are also the fastest XML processors available anywhere according to the xmlbench results.
		An important purpose of the public namespace API is to ensure that namespace modules are both source- and binary-compatible with either of the namespace parser modules and with any future implementations.
		Namespace support in Apache is an evolving technology, with a small but growing number of applications.
	www.xml.com /pub/a/2004/12/15/apache-namespaces.html (1473 words)

XML Namespaces

Since element names in XML are not predefined, a name conflict will occur when two different documents use the same element names.

If these two XML documents were added together, there would be an element name conflict because both documents contain a element with different content and definition.

		When a namespace is defined in the start tag of an element, all child elements with the same prefix are associated with the same namespace.
	www.w3schools.com /xml/xml_namespaces.asp (770 words)

	Namespaces
		The prefix indicates the namespace that the element or attribute is in.
		Technically, a namespace declaration adds a namespace node to the element the namespace declaration is on, and to all the elements it has as descendants.
		That namespace is 'in scope' to that element and all its descendants.
	www.dpawson.co.uk /xsl/sect2/N5536.html (11385 words)

	XML 2.0
		The complete failure of XML 1.1 doesn't leave me very optimistic, but maybe a big change would be more palatable than an incremental one.
		In XML 2.0, there would be no “” declaration, no entities (except the built in entities and their close cousins, numeric character references), no attribute or element types of any kind, and no fixed or default values for attributes.
		Furthermore, the “null namespace,” the namespace in which elements appear if there is no namespace declaration, would have an explicit URI (and could, consequently, be associated with a prefix).
	norman.walsh.name /2004/11/10/xml20 (3560 words)

	XML Namespace Related-resource Definition (XNRL)
		XML Namespace Related-resource Language (XNRL) is an HTML-based markup language designed to contain a human-readable description of an XML namespace as well as pointers to multiple resources related to that namespace.
		XNRL is designed to be suitable for service as the body of a resource returned by deferencing a URI serving as an XML Namespace name.
		The XNRL namespace provides certain predefined values which may be used for this purpose; see below.
	www.textuality.com /xml/xnrl.html (323 words)

	JDOM v1.0: Class Namespace
		An XML namespace representation, as well as a factory for creating XML namespace objects.
		Namespaces are not Serializable, however objects that use namespaces have special logic to handle serialization manually.
		If two namespaces have the same URI, they are equal and have the same hash code, even if they have different prefixes.
	www.jdom.org /docs/apidocs/org/jdom/Namespace.html (231 words)

	XML Namespaces
		The XML Namespaces Recommendation tries to improve this situation by extending the data model to allow element type names and attribute names to be qualified with a URI.
		The XML Namespaces Recommendation does not require element type names and attribute names to be universal names; they are also allowed to be local names.
		In effect the XML Namespaces Recommendation defines a mapping from an XML 1.0 tree where element type names and attribute names are local names into a tree where element type names and attribute names can be universal names.
	www.jclark.com /xml/xmlns.htm (968 words)

	A List Apart: Articles: Inline XML
		That’s an XML namespace, which has been used to identify that you’re writing your markup using the language whose unique corresponding url is
		To add another language to your document you have to add extra namespaces to your HTML tag (note that you can add it to any element which is an ancestor of the tags which use that namespace, but it’s easiest to put them all on the HTML tag).
		The next thing we need to do is prefix all the XML tags in our document with their unique prefix followed by a colon.
	www.alistapart.com /stories/inlinexml (1082 words)

	RFC 3120 (rfc3120) - A URN Namespace for XML.org (Site not responding. Last check: 2007-10-22)
		Abstract This document describes a URN (Uniform Resource Name) namespace that is engineered by the Organization for the Advancement of Structured Information Standards (OASIS) for naming persistent resources stored in the XML.org repository (such as XML (Extensible Markup Language) Document Type Definitions, XML Schemas, Namespaces, Stylesheets, and other documents).
		This namespace specification is for a formal namespace.
		[3] W3C, Namespaces WG, "Namespaces in XML", January 1999, .
	www.faqs.org /rfcs/rfc3120.html (630 words)

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Topic: XML namespace

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