RELAX NG

RELAX NG makes it easy to add such annotations because any element in a foreign namespace can be placed anywhere in a definition .

Should an XML route be taken, RELAX NG seems the best bet, as it is readily converted to the other two, and easier to understand.

Since the last installment , tool support for RELAX NG has gotten a little bit better .

This tutorial guides you through the creation of a RELAX NG schema , discussing elements , attributes, data typing, and structural issues .

With a bit more time, I think greater RELAX NG integration into tools is likely.

I would not mind seeing a later revision of RELAX NG that incorporates more flexible cardinality constraints .

This set of XML schemata (in RELAX NG) is suitable for representing word processor, spreadsheet, and presentation documents.

These frameworks automatically emit code for specialized validation of a particular RELAX NG schema .

The main body of a RELAX NG grammar may have either of two styles .

You cannot verify any of these constraints in pure RELAX NG code, either.

RELAX NG is a grammar-based XML schema language used to describe, define, and limit XML vocabularies.

Part 2 (March 2003): Continue the discussion by addressing a few additional semantic issues and looking at tools for working with RELAX NG.

Part 2 continues the discussion by addressing a few additional semantic issues and looking at tools for working with RELAX NG (March 2003).

Future releases may support other values for Relax NG or other schema languages.

A RELAX NG schema itself is validated during the process, as well.

A compact syntax RELAX NG schema may begin with any of several optional namespace declarations.

Moreover, RELAX NG treats elements and attributes in an almost uniform manner.

Each OWL element is an annotation that expresses a link from the containing RELAX NG definition.

[Community standard and draft ISO standard] is a schema language that uses a different approach from DTD, RELAX NG, or WXS.

In essence, you can extend RELAX NG's built-in validation rules with arbitrarily complex validation conditions.

Listing 2 is a modification of Listing 1 illustrating that RELAX NG does not actually proscribe using namespace prefixes in attributes.

Listing 1 is a snippet from a RELAX NG schema that you might construct for this purpose.

Find out why some people dislike Document Type Definition (DTD), and discover how RELAX NG aims to improve upon it.

Official tutorials cover RELAX NG's core and its compact syntax.

RELAX NG does not perform any infoset augmentation.

Part 1 looks at the general semantics of RELAX NG, and touches on datatyping (February 2003).

It is probably worth looking at an entire XML syntax RELAX NG schema document.

The best-known alternative is RELAX NG, which the ISO is standardizing.

The final installment will discuss the RELAX NG compact syntax in more detail.

Earlier, I mentioned my disappointment with the lack of an official RELAX NG schema set for UBL 1. 0.

Part 1 of this three-part series gives a fairly complete overview of both the syntax and semantics of RELAX NG schemas (February 2003).

Listing 1 is a RELAX NG schema (compact syntax) snippet that includes informal annotations.

In 2001, he pioneered TREX, an alternative XML schema language which has since merged with the RELAX language, to form RELAX NG.

Listing 4 shows how this works for a single element definition, using the handy compact syntax of RELAX NG.

One category of tool that I have not seen much of outside of RELAX NG contexts is a single-schema validator.

To validate an XML instance document against a RELAX NG schema.

RNGzip uses a Relax NG schema validator to build a deterministic tree automaton from the specified schema.

Part 1 (February 2003): Look at the general semantics of RELAX NG and touches on datatyping.

A nested-style RELAX NG grammar need not describe a single element only.

Listing 9 shows a basic RELAX NG schema for the XML directory listing file.

The rigidity of traditional schema languages like Document Type Definitions (DTDs), W3C Schemas, and RELAX NG causes fragility.

Listing 3 shows the schema in RELAX NG Compact notation.

A compliant JAXP implementation must support W3C XML Schema. Supporting other languages, such as RELAX NG, is optional.

In the same vein, more and more XML documents now use RELAX NG, or even proprietary constraint models.

If you wish to learn RELAX NG, read this tutorial.

Discussion of the algorithmic principles behind RELAX NG validation

since i discovered relax ng , however , many of my concerns have been assuaged

A formal language schema, expressed in RELAX NG compact syntax