RDFNode.cpp

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/*
 * This file is part of KnowRob, please consult
 * https://github.com/knowrob/knowrob for license details.
 */
 
#include <boost/algorithm/string/predicate.hpp>
#include "knowrob/terms/RDFNode.h"
#include "knowrob/integration/python/utils.h"
 
namespace knowrob {
    RDFNodeType rdfNodeTypeGuess(std::string_view str) {
        if (str.empty()) return RDFNodeType::LITERAL;
        if (str[0] == '_') return RDFNodeType::BLANK;
        if (str[0] == '<') return RDFNodeType::IRI;
        if (boost::algorithm::starts_with(str, "http://") ||
            boost::algorithm::starts_with(str, "https://"))
            return RDFNodeType::IRI;
        if (boost::algorithm::starts_with(str, "genid")) return RDFNodeType::BLANK;
        return RDFNodeType::LITERAL;
    }
}
 
namespace knowrob::py {
    template<>
    void createType<RDFNode>() {
        using namespace boost::python;
        enum_<RDFNodeType>("RDFNodeType")
                .value("BLANK", RDFNodeType::BLANK)
                .value("IRI", RDFNodeType::IRI)
                .value("LITERAL", RDFNodeType::LITERAL)
                .export_values();
        class_<RDFNode, std::shared_ptr<RDFNode>, boost::noncopyable>("RDFNode", no_init)
                .def("rdfNodeType", &RDFNode::rdfNodeType);
    }
}