Writing an xslt transform html

What everyone should know about disable-output-escaping disable-output-escaping is a feature that concerns the serialization only. Escaped or not, the XML data is the same.

Writing an xslt transform html

Later we will look at detailed examples, but first let's focus on XSLT and XPath in the context of a few of the Recommendations in the XML family and examine how these two Recommendations work together to address separate and distinct functionality required when working with structured information technologies.

This chapter does not attempt to address all of the numerous XML-related Recommendations currently released or in development. Extensible Markup Language XML For years, applications and vendors have imposed their constraints on the way we can represent our information. Our data has been created, maintained, stored and archived according to the rules enforced by others.

The advent of the Extensible Markup Language XML moves the control of our information out of the hands of others and into our own by providing two basic facilities.

writing an xslt transform html

XML describes rules for structuring our information using embedded markup of our own choice. We can take control of our information representation by creating and using a vocabulary we design of elements and attributes that makes sense for the way we do our business and use our data.

In addition, XML describes a language for formally declaring the vocabularies we use. This allows our tools to constrain the creation of an instance of our information, and allows our users to validate a properly created instance of information against our set of constraints.

The two terms document and instance could be used interchangeably, but this reference material uses the term instance to help readers remember that XML isn't just for documents or documentation.

With XML we describe a related set of information in a tree-like hierarchical fashion, and gain the benefits of having done so, whether the information captures an invoice-related transaction between computers, or the content of a user manual rendered on paper. We use this language to specify the locations of document structures or data found in an XML document when processing that information using XSLT.

XPath allows us from any location to address any other location or content. The Extensible Stylesheet Language XSL is a rendering vocabulary describing the semantics of formatting information for different media. Namespaces We use XML namespaces to distinguish information when mixing multiple vocabularies in a single instance.

Without namespaces our processes would find the information ambiguous when identical names have been chosen by the designers of the vocabularies we use. Stylesheet Association We declare our choice of an associated stylesheet for an XML instance by embedding the construct described in the Stylesheet Association Recommendation.

Recipients and applications can choose to respect or ignore this choice, but the declaration indicates that we have tied some process typically rendering to our data, which specifies how to consume or work with our information. Alternatively, we now can express our data in a structured fashion oriented around our perspective of the nature of the information itself rather than the nature of an application's choice of how to represent our information.

With Extensible Markup Language XMLwe describe our information using embedded markup of elements, attributes and other constructs in a tree-like structure.

XSL Transformations (XSLT)

Though trees shape a number of areas of XML, both logically markup and physically entities such as files or other resourcesthey are not the only means by which relationships are specified. For example, a quantum of information can arbitrarily point or refer to other information elsewhere through use of unique identifiers.

Two basic objectives of representing information hierarchically are satisfied by the XML Recommendation.


Well-formedness dictates the syntax used for markup languages within the content of an instance of information. Users of the Hypertext Markup Language HTML will recognize the use of these characters for marking the vocabulary described by the designers of the World Wide Web in their web documents.

A Document Type Definition DTD describes the structural schema mandating the user-defined constraints on well-formed information. The designers of HTML have formalized their vocabulary through such a DTD, thus declaring the allowed or expected relationships between components of a hypertext document.

There is an implicit document model for an instance of well-formed XML defined by the mere presence of nested elements found in the information. There is no need to declare this model because the syntax rules governing well-formedness guarantee the information to be seen properly as a hierarchy.

XSLT Control Commands

As with all hierarchies, there are family-tree-like relationships of parent, child, and sibling constructs relative to each construct found. Consider the following well-formed XML instance purc. A well-formed XML purchase order instance.

Observe the content nesting whitespace has been added only for illustrative purposes. The instance follows the lexical rules for XML markup and the hierarchical model is implicit by the nesting of elements.The combination of XML and XSLT is growing in popularity with webmasters of medium-sized and large Web sites.

Prior to XSLT, changing the presentation of a Web site was a major undertaking: one had to revisit and to change every page on the site.

What everyone should know about CDATA sections

I do not think CDATA sections are meant to go in your XSLT. I'm pretty sure they are designated for the XML file. – Joe Phillips Nov 24 '11 at Interaction of script elements and XSLT. This section is non-normative. This specification does not define how XSLT interacts with the script element.

However, in the absence of another specification actually defining this, here are some guidelines for implementers, based on existing implementations. Nov 16,  · I'm having trouble writing several records from an XML file into an html file.

The problem is that it only outputs one record to the html file. With XSLT 3, an innovation that first appeared in XQuery has made its way into the XSLT language - the use of text value templates (attribute value templates appeared in XSLT2).

writing an xslt transform html

The idea here is simple - any time an expression can be evaluated as a string or similar atomic value, the statement can be replaced with braces "{}". Writing code to handle XML transformations in XSLT is much easier than in any other commonly used programming language.

But the XSLT language has such a different syntax and processing model from classical programming languages that it takes time to grasp all of XSLT's subtle nuances.

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