p:set-properties (3.1)

Sets or changes document-properties.

Summary
Description
Additional details
Errors raised
Reference information

Summary

<p:declare-step type="p:set-properties">
  <input port="source" primary="true" content-types="any" sequence="false"/>
  <output port="result" primary="true" content-types="any" sequence="false"/>
  <option name="properties" as="map(xs:QName,item()*)" required="true"/>
  <option name="merge" as="xs:boolean" required="false" select="true()"/>
</p:declare-step>

The p:set-properties step sets or changes document-properties of the source document.

Ports:

Type	Port	Primary?	Content types	Seq?	Description
`input`	`source`	`true`	`any`	`false`	The document to adjust the document-properties of.
`output`	`result`	`true`	`any`	`false`	The resulting document.

Options:

Name	Type	Req?	Default	Description
`properties`	`map(xs:QName,item()*)`	`true`		A map containing the document-properties to adjust. The keys are the document-property names, the values their values.
`merge`	`xs:boolean`	`false`	`true`	If `true` (default), the supplied properties in the `properties` option are merged with the existing document-properties, replacing/overwriting existing ones. If `false`, the existing document-properties are replaced.

Description

A document flowing through an XProc pipeline carries a set of document-properties with it. Document-properties are key/value pairs, where the key is a QName (which, in most cases, you can treat as just a string). Their values can be anything. Getting the value(s) of document-properties can be done using the XProc functions p:document-properties() and p:document-property().

XProc reserves three document-property names for its own usage: content-type, base-uri and serialization (see here for more information). However, you can also add your own and use them in any way you like.

The p:set-properties step can be used to change (most) document-properties. For an example of using p:set-properties see Converting XML to text in step p:cast-content-type.

Additional details

The p:set-properties step can not change a document media type by altering the content-type document-property. Any attempt to do this will result in error XC0069. To change a document media type use p:cast-content-type.
The value of the serialization document-property must be a map of type map(xs:QName, item()*). If not error XD0070 is raised.
Setting a document-property called base-uri changes the document’s base URI accordingly. See also category Base URI related.

Errors raised

Error code	Description
`XC0069`	It is a dynamic error if the `properties` map contains a key equal to the string “`content-type`”.
`XD0064`	It is a dynamic error if the base URI is not both absolute and valid according to RFC 3986 .
`XD0070`	It is a dynamic error if a value is assigned to the `serialization` document property that cannot be converted into `map(xs:QName, item()*)` according to the rules in section “QName handling” of XProc 3.0 .

Reference information

This description of the p:set-properties step is for XProc version: 3.1. This is a required step (an XProc 3.1 processor must support this).

The formal specification for the p:set-properties step can be found here.

The p:set-properties step is part of categories:

The p:set-properties step is also present in version: 3.0.