awwright / node-rdf Goto Github PK

is there a way to create docstrings ( i.e. literals with triple quotes) when using built-in mode?
I would like to have string.l() which returns """ value """

Hi,

I try to use the "Builtins" feature of node-rdf to make the resulting code more readable, but I cannot create a triple by simply calling rdfEnvironment.createTriple(string, string, string) -- this triggers an error because the Triple constructor checks the type of the arguments (cf. RDFNode.js:29ff). Is this intended? Am I using the "Builtins" feature wrong? Or should this be possible? Is there another way how I can create a triple with the "Builtins" feature?

Kind regards,
Chris

Hello there I was trying to find the package.json, but I could not find it! Is it on github?

TripletGraph seems to have disappeared when I install from npm. Roughly:

$ npm install rdf
$ node
> rdf = require('rdf')
> rdf.TripletGraph
undefined

if namespace uri's are overlapping, like in the example below, PrefixMap.shrink sometime returns incorrect results, depending on the order of namespace declarations, e.g.

@Prefix xmp: http://ns.adobe.com/xap/1.0/ .
@Prefix xmpMM: http://ns.adobe.com/xap/1.0/mm/ .
@Prefix xmpRights: http://ns.adobe.com/xap/1.0/rights/ .

turtleParser.environment.prefixes.shrink('http://ns.adobe.com/xap/1.0/mm/DocumentID') -> 'xmp:mm/DocumentID' instead of 'xmpMM:DocumentID'

Turtle files with datatypes written with prefixes, eg: "1"^^xsd:number are not expanded to "http://www.w3.org/2001/XMLSchema#number" when parsing.

What I'm doing

let graph = env.createGraph();
let turtleParser = new rdf.TurtleParser();
turtleParser.parse(rdfText, function () {
    graph.forEach(triple => {
        console.log(triple.object.datatype);
    })
}, "", null, graph);

Example turtle

@prefix sh: <http://www.w3.org/ns/shacl#>.
@prefix : <http://example.com/>.
@prefix xsd: <http://www.w3.org/2001/XMLSchema#>.

:person1 :age "1"^^xsd:number .

:person1 a :Person.

Prints

xsd:number

Should print

http://www.w3.org/2001/XMLSchema#number

How can I export a Graph as n3 or NT?

Hello,

I would like to know if exists some function to print the profile,
I want to reconstruct the complete turtle file based on a graph I know how to print the triples
and create a string variable, but I don't find the way to print in the top of the file the prefix.

Say I've got a graph that refers to a blank node object "b1". How do I query for triples where "b1" is the subject?

<#me>
  a foaf:Person;
  cert:key [                             # the object here is blank node "b1"
    a cert:RSAPublicKey;       # these are the triples I want to find
    cert:exponent 65537;
    cert:modulus "..."
  ].

The closest I can seem to get is graph.match("_:b1", null, null), which at least recognizes that I'm looking for a blank node, but throws with "unexpected BlankNode syntax". I can also find triples related to the predicate with graph.match(null, "cert:exponent", null), but that still requires that I manually filter for the subject I'm looking for.

Hi,

I've installed node-rdf via npm and encountered that the latest release there does not implement graph.removeMatches yet .. Could you release the latest commit as version to npm? Thanks.

Kind regards,
Chris