alignment.js

var ASNPatterns = [
    /http:\/\/purl\.org\/ASN\/resources\/[A-Z0-9]+/g
];

var Alignment = {
    
    parseDCT_ConformsTo: function(resource_data) {
        var stds = {};
        try {
                var nsdl = eval(resource_data);
                var dct = new Namespace("http://purl.org/dc/terms/");

                conformsToElems = nsdl..dct::conformsTo

                for (idx in conformsToElems) {
                    stds[conformsToElems[idx].toString().trim()] = true;
                }

        } catch (error) {
            // bury error
        }
        return stds;
    }

};

map.js

function(doc) {

    // !code lib/alignment.js

    try {
        if (doc.doc_type == "resource_data" && doc.resource_data && doc.resource_locator && doc.node_timestamp) {
            var ctMap = Alignment.parseDCT_ConformsTo(doc.resource_data);
            var found = {};
            for (ct in ctMap) {
                for (re in ASNPatterns){
                    var stds = ct.match(ASNPatterns[re]);
                    for (s in stds) {
                        if (!found[stds[s]]) {
                            emit([doc.resource_locator, doc.node_timestamp, stds[s]], null);
                            found[s] = true;
                        }
                    }
                }
            }
                
        }   
    
    } catch (error) {
            log("error:"+error);
    }
}