XPATH allows the use of wildcards to write more robust path expressions where the use of specific path expressions is either impossible or undesirable.

Special Characters in XML

Structured XML, irrespective of its purpose, is designed to carry data for a variety of purposes. The XML 1.0 standard defines 5 predefined entities – aka special characters.

What is XSLT?

Wikipedia defines XSLT as follows: XSLT (Extensible Stylesheet Language Transformations) is a language for transforming XML documents into other XML documents, or other formats such as HTML for web pages, plain text or into XSL Formatting Objects, which may subsequently be converted to other formats, such as PDF PostScript and PNG.

Node Relationships

XML defines various node relationship types: parent, child, sibling, ancestor and descendent. Understanding how these relationships function is a prerequisite of document manipulation and queries(i.e. XPath)

What is XPATH?

The World Wide Web Consortium (W3C) defines XPATH (1.0, 2.0, 3.0)  as follows: XPath is a language for addressing parts of an XML document, designed to be used by both XSLT and XPointer. The quoted definition from the W3C is correct, however, we feel that a better definition would be: XPATH is a path addressing […]

XPATH Data Types

XPATH is a query-language specifically designed to retrieve results from an XML document hierarchy. As such the value of the result can be one of a finite set of data types where the data type is defined by the values it can take as well as the operations / functions which can be performed on […]

What is XML?

The World Wide Web Consortium  (W3C) defines XML as follows: The Extensible Markup Language (XML) is a simple text-based format for representing structured information.