EXSLT - exsl:object-type - Implementer Page

Version: 2
Status: stable
User Page: index.html
XML Definition: exsl.object-type.xml
Function Package: exsl.object-type.zip

Function Syntax

string exsl:object-type(object)

The exsl:object-type function returns a string giving the type of the object passed as the argument. The possible object types are: 'string', 'number', 'boolean', 'node-set', 'RTF' or 'external'.

Most XSLT object types can be coerced to each other without error. However, there are certain coercions that raise errors, most importantly treating anything other than a node set as a node set. Authors of utilities such as named templates or user-defined extension functions may wish to give some flexibility in the parameter and argument values that are accepted by the utility; the exsl:object-type function enables them to do so.

An implementation of this extension function in the EXSLT exsl namespace must conform to the behaviour described in this document.

Implementations

Built-in support for exsl:object-type is available in the following XSLT processors:

Processor	Processor Version	Implemented Version
4XSLT, from 4Suite.	0.12.0a3	2
SAXON from Michael Kay	6.3	2
jd.xslt from Johannes Döbler	1.0.8	2
libxslt from Daniel Veillard; implementation by Thomas Broyer	1.0.19	2
Xalan-J from Apache	2.4.D1	2

There are currently no third-party implementations of exsl:object-type.

Use Cases

Use Case Package: exsl.object-type.use-cases.zip

The following use cases illustrate the functionality of exsl:object-type.

Details	Calling Stylesheet	XML Data	Expected Result	Category	Template
1	exsl.object-type.1.xsl	exsl.object-type.data.1.xml	exsl.object-type.result.1.xml	example	N

Change History

Previous Version: exsl.object-type.1.html

Version	Modified	By	Details
2	2001-04-24	Jeni Tennison	Added `'external'` as a possible object type.
2.1	2001-04-24	Jeni Tennison	Added vendor implementations of Saxon and 4EXSLT Changed status to stable
2.2	2001-06-02	Jeni Tennison	Added vendor implementation in jd.xslt
2.3	2001-08-15	Jeni Tennison	Added vendor implementation in libxslt
2.4	2002-08-20	Craig Stewart	Added Xalan-J implementation to the list.
2.5	2002-11-12	Craig Stewart	Updated 4XSLT version to 0.12.0a3.

Copyright

This material is in the public domain.