The Evolution of XPath: What’s New in XPath 3.0
Course info
Course info
Description
XPath 3.0 is the latest version of XPath, the language for navigating XML documents. XPath is to XML documents like what SQL is to Relational Database Management Systems. The new W3C XPath 3.0 Recommendation gives us a language with amazing power resulting from its ability to define its own higher-order functions. If you think that you know XPath, but want to master version 3 of XSLT, XQuery, or future versions of XProc, XSD, Schematron, or pretty much any other modern programming language, then you need to start here. This course covers all new features of XPath 3.0: the XPath Data Model 3.0, operators, constructs, and expressions, along with the most powerful new feature - the function type. This course gives in-depth coverage of XPath 3.0 side-by-side with practical demos of their real-world applications.
About the author
Dimitre Novatchev developed FXSL – the functional programming library for XSLT (1.0 and 2.0). He thrives at discovering and employing unexpected capabilities of XSLT and XPath that even their W3C creators hadn’t imagined.
More from the author
Section Introduction Transcripts
XPath Data Model (XDM) Refresher. What’s New in XDM 3.0
Hi, I'm Dimitre Novatchev. Welcome to the module XPath Data Model (XDM) Refresher, What's New in XDM 3. 0. You are probably aware of the role that the XPath Data Model plays for XPath 2. Nevertheless, this module is a refresher on this topic. After watching this module, you will understand the role of the XDM as the foundation of XPath. You will also learn about the basic concepts that are defined in the XDM, the most important of them being what kinds of nodes there are in XPath and what are the properties of each kind of node. You will know what new data types were added to XPath 3. 0 and you will learn about the most important of these new types, the function type.
What' s New in XPath 3.0
Hi, I am Dimitre Novatchev. Welcome to the module What's New in XPath 3. 0. After watching this module, you will be familiar with the new features, data types, operators, kinds of expressions, and new constructs introduced in XPath 3. 0. You will get to know the new XPath 3. 0 data types, both adopted from XML Schema 1. 1 and even more importantly, the ones introduced especially for XPath 3. 0. You will become familiar with the new operators introduced in XPath 3. 0. You will learn about the new expression types introduced in XPath 3. 0, some of the most important of which involve defining, referencing, and calling a function, both statically and dynamically. Finally, you will know and understand how subtyping between two function types is defined in terms of subtyping between their arguments and returns types.
New Standard Functions in XPath 3.0: Part 2
Hi, I'm Dimitre Novatchev. Welcome to the module New Standard Functions in XPath 3. 0: Part 2. In the last module, we covered in detail the new XPath 3. 0 functions from these groups. Now we will discuss the new functions in the remaining five groups, functions for formatting integers, numbers, and date-time values, a large group of functions that access external information, some very powerful new functions for parsing and serialization, and also what is new in using constructor functions and casting to list and union types.