epub3-merge-prefix {http://www.daisy.org/ns/pipeline/xproc}

Step epub3-merge-prefix {http://www.daisy.org/ns/pipeline/xproc}

Merge prefix attributes

Defined in: http://www.daisy.org/pipeline/modules/epub-utils/library.xpl

Input Ports

Port Description

Port	Description
source primary	OPF, HTML or ZedAI document that may have more than one `prefix` (`epub:prefix`) attribute. `prefix` attributes are allowed on any element, not only on the roote element (`package`, `html` or `document`). If an element has more than one ancestor element with a `prefix`, all except the closest one are ignored. In case of ZedAI input, unprefixed CURIEs resolve to the URI `http://www.daisy.org/z3998/2012/vocab/structure/#` (which is the default vocabulary as defined by the default RDFa context).

source primary

OPF, HTML or ZedAI document that may have more than one prefix (epub:prefix) attribute.

prefix attributes are allowed on any element, not only on the roote element (package, html or document).

If an element has more than one ancestor element with a prefix, all except the closest one are ignored.

In case of ZedAI input, unprefixed CURIEs resolve to the URI http://www.daisy.org/z3998/2012/vocab/structure/# (which is the default vocabulary as defined by the default RDFa context).

Output Ports

Port Description

Port	Description
result primary	The result document has at most one `prefix` (`epub:prefix`) attribute, on the root element. The different `prefix` attributes in the input document are merged in such a way that every prefix is unique and no two prefixes are mapped to the same URI. The document is updated at the places where a prefix is used that was renamed. Prefixes that are not used anywhere inside the document are skipped from the declaration.

result primary

The result document has at most one prefix (epub:prefix) attribute, on the root element. The different prefix attributes in the input document are merged in such a way that every prefix is unique and no two prefixes are mapped to the same URI. The document is updated at the places where a prefix is used that was renamed. Prefixes that are not used anywhere inside the document are skipped from the declaration.

Options

Local Name	Namespace URI	Default	Description
implicit-input-prefixes		'a11y: http://www.idpf.org/epub/vocab/package/a11y/# dc: http://purl.org/dc/elements/1.1/ dcterms: http://purl.org/dc/terms/ marc: http://id.loc.gov/vocabulary/ media: http://www.idpf.org/epub/vocab/overlays/# onix: http://www.editeur.org/ONIX/book/codelists/current.html# rendition: http://www.idpf.org/vocab/rendition/# schema: http://schema.org/ xsd: http://www.w3.org/2001/XMLSchema#'	Prefix declarations that are assumed in the input, i.e. they don't need to be declared in order to be recognized.
implicit-output-prefixes		'#default'	Prefix declarations that will be omitted from the output. By default (#default) prefixes that are used but not declared (i.e. implied) in the input are also implied in the output.

Local Name

Namespace URI

Default

Description

implicit-input-prefixes

'a11y: http://www.idpf.org/epub/vocab/package/a11y/# dc: http://purl.org/dc/elements/1.1/ dcterms: http://purl.org/dc/terms/ marc: http://id.loc.gov/vocabulary/ media: http://www.idpf.org/epub/vocab/overlays/# onix: http://www.editeur.org/ONIX/book/codelists/current.html# rendition: http://www.idpf.org/vocab/rendition/# schema: http://schema.org/ xsd: http://www.w3.org/2001/XMLSchema#'

Prefix declarations that are assumed in the input, i.e. they don't need to be declared in order to be recognized.

implicit-output-prefixes

'#default'

Prefix declarations that will be omitted from the output.

By default (#default) prefixes that are used but not declared (i.e. implied) in the input are also implied in the output.