RDFExport

Synopsis

Export annotations in RDF format.

Description

RDFExport creates an RDF file for each element of files . The file name is obtained by evaluating fileName as a string.

The triplet content of the files is specified by statements . statements provide the following libraries:

• one library for each entry in prefixes , which allows to write abbreviated URIs ( e.g. rdf:type );
• uri with two functions:
• uri:set(URI) : registers the default URI of the current element ( URI is evaluated as a string);

• uri:get : evaluates as the URI previously registered for the current element;

• stmt with several functions to specify the triplets to write into files:
• stmt:res(SUBJ, PROP, OBJ) : specifies a triplet where the object is a resource;
• stmt:lit(SUBJ, PROP, OBJ) : specifies a triplet where the object is an untyped literal;
• stmt:bool(SUBJ, PROP, OBJ) : specifies a triplet where the object is a boolean literal;
• stmt:int(SUBJ, PROP, OBJ) : specifies a triplet where the object is an integer literal;
• stmt:str(SUBJ, PROP, OBJ) : specifies a triplet where the object is a string literal;
• stmt:double(SUBJ, PROP, OBJ) : specifies a triplet where the object is a double literal;
• stmt:typed(SUBJ, PROP, OBJ, TYPE) : specifies a triplet where the object is a custom type literal;
• stmt:lang(SUBJ, PROP, OBJ, LANG) : specifies a triplet where the object is a string literal with a language qualifier;

All arguments are evaluated as strings, then interpreted as resource URIs or literals. The SUBJ argument is optional: if omitted the subject is the URI registered for the current element.

Snippet

📋

<rdfexport class="RDFExport">
    <fileName></fileName>
    <files></files>
    <outDir></outDir>
    <statements></statements>
</rdfexport>

Mandatory parameters

fileName

Name of the file. Evaluated as a string from the element representing the file (result of files .

files

Files to write. Evaluated as elements from the corpus. RDFExport creates a file for each element.

outDir

Base directory of output files.

statements

Triplets to write in files.

Optional parameters

charset

Charset to use.

format

Serialization format. Accepted values are listed here .

prefixes

Map of URI prefixes. Prefixes declared in this parameter are visible as libraries in statements . The following prefixes do not need to be specified: rdf , rdfs , dc , rss , owl .

Deprecated parameters