import _classCallCheck from "@babel/runtime/helpers/classCallCheck";
import _createClass from "@babel/runtime/helpers/createClass";
//  RDFa Parser for rdflib.js

// Originally by: Alex Milowski
// From https://github.com/alexmilowski/green-turtle
// Converted: timbl 2015-08-25 not yet working
// Added wrapper: csarven 2016-05-09 working

// RDFaProcessor.prototype = new Object() // Was URIResolver

// RDFaProcessor.prototype.constructor=RDFaProcessor

// options.base = base URI    not really an option, shopuld always be set.
//

import BlankNode from './blank-node';
import Literal from './literal';
import NamedNode from './named-node';
import * as Uri from './uri';
import * as Util from './utils-js';
import rdf from './factories/canonical-data-factory';
if (typeof Node === 'undefined') {
  //  @@@@@@ Global. Interface to xmldom.
  var Node = {
    ELEMENT_NODE: 1,
    ATTRIBUTE_NODE: 2,
    TEXT_NODE: 3,
    CDATA_SECTION_NODE: 4,
    ENTITY_REFERENCE_NODE: 5,
    ENTITY_NODE: 6,
    PROCESSING_INSTRUCTION_NODE: 7,
    COMMENT_NODE: 8,
    DOCUMENT_NODE: 9,
    DOCUMENT_TYPE_NODE: 10,
    DOCUMENT_FRAGMENT_NODE: 11,
    NOTATION_NODE: 12
  };
}
var RDFaProcessor = /*#__PURE__*/function () {
  function RDFaProcessor(kb, options) {
    _classCallCheck(this, RDFaProcessor);
    this.options = options || {};
    this.kb = kb;
    this.target = options.target || {
      graph: {
        subjects: {},
        prefixes: {},
        terms: {}
      }
    };
    // XXX: Added to track bnodes
    this.blankNodes = [];
    // XXX: Added for normalisation
    this.htmlOptions = {
      'selfClosing': 'br img input area base basefont col colgroup source wbr isindex link meta param hr'
    };
    this.theOne = '_:' + new Date().getTime();
    this.language = null;
    this.vocabulary = null;
    this.blankCounter = 0;
    this.langAttributes = [{
      namespaceURI: 'http://www.w3.org/XML/1998/namespace',
      localName: 'lang'
    }];
    this.inXHTMLMode = false;
    this.absURIRE = /[\w\_\-]+:\S+/;
    this.finishedHandlers = [];
    this.init();
  }
  return _createClass(RDFaProcessor, [{
    key: "addTriple",
    value: function addTriple(origin, subject, predicate, object) {
      var su, ob, pr, or;
      if (typeof subject === 'undefined') {
        su = rdf.namedNode(this.options.base);
      } else {
        su = this.toRDFNodeObject(subject);
      }
      pr = this.toRDFNodeObject(predicate);
      ob = this.toRDFNodeObject(object);
      or = rdf.namedNode(this.options.base);
      // console.log('Adding { ' + su + ' ' + pr + ' ' + ob + ' ' + or + ' }')
      this.kb.add(su, pr, ob, or);
    }
  }, {
    key: "ancestorPath",
    value: function ancestorPath(node) {
      var path = '';
      while (node && node.nodeType !== Node.DOCUMENT_NODE) {
        path = '/' + node.localName + path;
        node = node.parentNode;
      }
      return path;
    }
  }, {
    key: "copyMappings",
    value: function copyMappings(mappings) {
      var newMappings = {};
      for (var k in mappings) {
        newMappings[k] = mappings[k];
      }
      return newMappings;
    }
  }, {
    key: "copyProperties",
    value: function copyProperties() {}
  }, {
    key: "deriveDateTimeType",
    value: function deriveDateTimeType(value) {
      for (var i = 0; i < RDFaProcessor.dateTimeTypes.length; i++) {
        // console.log("Checking "+value+" against "+RDFaProcessor.dateTimeTypes[i].type)
        var matched = RDFaProcessor.dateTimeTypes[i].pattern.exec(value);
        if (matched && matched[0].length === value.length) {
          // console.log("Matched!")
          return RDFaProcessor.dateTimeTypes[i].type;
        }
      }
      return null;
    }
  }, {
    key: "init",
    value: function init() {}
  }, {
    key: "newBlankNode",
    value: function newBlankNode() {
      this.blankCounter++;
      return '_:' + this.blankCounter;
    }
  }, {
    key: "newSubjectOrigin",
    value: function newSubjectOrigin(origin, subject) {}
  }, {
    key: "parseCURIE",
    value: function parseCURIE(value, prefixes, base) {
      var colon = value.indexOf(':');
      var uri;
      if (colon >= 0) {
        var prefix = value.substring(0, colon);
        if (prefix === '') {
          // default prefix
          uri = prefixes[''];
          return uri ? uri + value.substring(colon + 1) : null;
        } else if (prefix === '_') {
          // blank node
          return '_:' + value.substring(colon + 1);
        } else if (RDFaProcessor.NCNAME.test(prefix)) {
          uri = prefixes[prefix];
          if (uri) {
            return uri + value.substring(colon + 1);
          }
        }
      }
      return null;
    }
  }, {
    key: "parseCURIEOrURI",
    value: function parseCURIEOrURI(value, prefixes, base) {
      var curie = this.parseCURIE(value, prefixes, base);
      if (curie) {
        return curie;
      }
      return this.resolveAndNormalize(base, value);
    }
  }, {
    key: "parsePredicate",
    value: function parsePredicate(value, defaultVocabulary, terms, prefixes, base, ignoreTerms) {
      if (value === '') {
        return null;
      }
      var predicate = this.parseTermOrCURIEOrAbsURI(value, defaultVocabulary, ignoreTerms ? null : terms, prefixes, base);
      if (predicate && predicate.indexOf('_:') === 0) {
        return null;
      }
      return predicate;
    }
  }, {
    key: "parsePrefixMappings",
    value: function parsePrefixMappings(str, target) {
      var values = this.tokenize(str);
      var prefix = null;
      // var uri = null
      for (var i = 0; i < values.length; i++) {
        if (values[i][values[i].length - 1] === ':') {
          prefix = values[i].substring(0, values[i].length - 1);
        } else if (prefix) {
          target[prefix] = this.options.base ? Uri.join(values[i], this.options.base) : values[i];
          prefix = null;
        }
      }
    }
  }, {
    key: "parseSafeCURIEOrCURIEOrURI",
    value: function parseSafeCURIEOrCURIEOrURI(value, prefixes, base) {
      value = this.trim(value);
      if (value.charAt(0) === '[' && value.charAt(value.length - 1) === ']') {
        value = value.substring(1, value.length - 1);
        value = value.trim(value);
        if (value.length === 0) {
          return null;
        }
        if (value === '_:') {
          // the one node
          return this.theOne;
        }
        return this.parseCURIE(value, prefixes, base);
      } else {
        return this.parseCURIEOrURI(value, prefixes, base);
      }
    }
  }, {
    key: "parseTermOrCURIEOrAbsURI",
    value: function parseTermOrCURIEOrAbsURI(value, defaultVocabulary, terms, prefixes, base) {
      // alert("Parsing "+value+" with default vocab "+defaultVocabulary)
      value = this.trim(value);
      var curie = this.parseCURIE(value, prefixes, base);
      if (curie) {
        return curie;
      } else if (terms) {
        if (defaultVocabulary && !this.absURIRE.exec(value)) {
          return defaultVocabulary + value;
        }
        var term = terms[value];
        if (term) {
          return term;
        }
        var lcvalue = value.toLowerCase();
        term = terms[lcvalue];
        if (term) {
          return term;
        }
      }
      if (this.absURIRE.exec(value)) {
        return this.resolveAndNormalize(base, value);
      }
      return null;
    }
  }, {
    key: "parseTermOrCURIEOrURI",
    value: function parseTermOrCURIEOrURI(value, defaultVocabulary, terms, prefixes, base) {
      // alert("Parsing "+value+" with default vocab "+defaultVocabulary)
      value = this.trim(value);
      var curie = this.parseCURIE(value, prefixes, base);
      if (curie) {
        return curie;
      } else {
        var term = terms[value];
        if (term) {
          return term;
        }
        var lcvalue = value.toLowerCase();
        term = terms[lcvalue];
        if (term) {
          return term;
        }
        if (defaultVocabulary && !this.absURIRE.exec(value)) {
          return defaultVocabulary + value;
        }
      }
      return this.resolveAndNormalize(base, value);
    }
  }, {
    key: "parseURI",
    value: function parseURI(uri) {
      return uri; // We just use strings as URIs, not objects now.
    }
  }, {
    key: "process",
    value: function process(node, options) {
      /*
      if (!window.console) {
         window.console = { log: function() {} }
      } */
      options = options || {};
      var base;
      if (node.nodeType === Node.DOCUMENT_NODE) {
        if (node.baseURI && !options.baseURI) {
          options.baseURI = node.baseURI; // be defensive as DOM implementations vary
        }
        base = node.baseURI;
        node = node.documentElement;
        if (!node.baseURI) {
          node.baseURI = base;
        }
        this.setContext(node);
      } else if (node.parentNode.nodeType === Node.DOCUMENT_NODE) {
        this.setContext(node);
      }
      var queue = [];
      // Fix for Firefox that includes the hash in the base URI
      var removeHash = function removeHash(baseURI) {
        // Fix for undefined baseURI property
        if (!baseURI && options && options.baseURI) {
          return options.baseURI;
        }
        var hash = baseURI.indexOf('#');
        if (hash >= 0) {
          baseURI = baseURI.substring(0, hash);
        }
        if (options && options.baseURIMap) {
          baseURI = options.baseURIMap(baseURI);
        }
        return baseURI;
      };
      queue.push({
        current: node,
        context: this.push(null, removeHash(node.baseURI))
      });
      while (queue.length > 0) {
        var item = queue.shift();
        if (item.parent) {
          // Sequence Step 14: list triple generation
          if (item.context.parent && item.context.parent.listMapping === item.listMapping) {
            // Skip a child context with exactly the same mapping
            continue;
          }
          // console.log("Generating lists for "+item.subject+", tag "+item.parent.localName)
          for (var _predicate in item.listMapping) {
            var list = item.listMapping[_predicate];
            if (list.length === 0) {
              this.addTriple(item.parent, item.subject, _predicate, {
                type: RDFaProcessor.objectURI,
                value: 'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil'
              });
              continue;
            }
            var bnodes = [];
            for (var _i = 0; _i < list.length; _i++) {
              bnodes.push(this.newBlankNode());
              // this.newSubject(item.parent,bnodes[i])
            }
            for (var _i2 = 0; _i2 < bnodes.length; _i2++) {
              this.addTriple(item.parent, bnodes[_i2], 'http://www.w3.org/1999/02/22-rdf-syntax-ns#first', list[_i2]);
              this.addTriple(item.parent, bnodes[_i2], 'http://www.w3.org/1999/02/22-rdf-syntax-ns#rest', {
                type: RDFaProcessor.objectURI,
                value: _i2 + 1 < bnodes.length ? bnodes[_i2 + 1] : 'http://www.w3.org/1999/02/22-rdf-syntax-ns#nil'
              });
            }
            this.addTriple(item.parent, item.subject, _predicate, {
              type: RDFaProcessor.objectURI,
              value: bnodes[0]
            });
          }
          continue;
        }
        var current = item.current;
        var context = item.context;
        // console.log("Tag: "+current.localName+", listMapping="+JSON.stringify(context.listMapping))
        // Sequence Step 1
        var skip = false;
        var newSubject = null;
        var currentObjectResource = null;
        var typedResource = null;
        var prefixes = context.prefixes;
        var prefixesCopied = false;
        var incomplete = [];
        var listMapping = context.listMapping;
        var listMappingDifferent = !context.parent;
        var language = context.language;
        var vocabulary = context.vocabulary;
        // TODO: the "base" element may be used for HTML+RDFa 1.1
        base = this.parseURI(removeHash(current.baseURI));
        current.item = null;
        // Sequence Step 2: set the default vocabulary
        var vocabAtt = current.getAttributeNode('vocab');
        if (vocabAtt) {
          var value = this.trim(vocabAtt.value);
          if (value.length > 0) {
            vocabulary = value;
            var baseSubject = base.spec;
            // this.newSubject(current,baseSubject)
            this.addTriple(current, baseSubject, 'http://www.w3.org/ns/rdfa#usesVocabulary', {
              type: RDFaProcessor.objectURI,
              value: vocabulary
            });
          } else {
            vocabulary = this.vocabulary;
          }
        }
        // Sequence Step 3: IRI mappings
        // handle xmlns attributes
        for (var i = 0; i < current.attributes.length; i++) {
          var att = current.attributes[i];
          // if (att.namespaceURI=="http://www.w3.org/2000/xmlns/") {
          if (att.nodeName.charAt(0) === 'x' && att.nodeName.indexOf('xmlns:') === 0) {
            if (!prefixesCopied) {
              prefixes = this.copyMappings(prefixes);
              prefixesCopied = true;
            }
            var prefix = att.nodeName.substring(6);
            // TODO: resolve relative?
            var ref = RDFaProcessor.trim(att.value);
            prefixes[prefix] = this.options.base ? Uri.join(ref, this.options.base) : ref;
          }
        }
        // Handle prefix mappings (@prefix)
        var prefixAtt = current.getAttributeNode('prefix');
        if (prefixAtt) {
          if (!prefixesCopied) {
            prefixes = this.copyMappings(prefixes);
            prefixesCopied = true;
          }
          this.parsePrefixMappings(prefixAtt.value, prefixes);
        }
        // Sequence Step 4: language
        var xmlLangAtt = null;
        for (var _i3 = 0; !xmlLangAtt && _i3 < this.langAttributes.length; _i3++) {
          xmlLangAtt = current.getAttributeNodeNS(this.langAttributes[_i3].namespaceURI, this.langAttributes[_i3].localName);
        }
        if (xmlLangAtt) {
          var _value = RDFaProcessor.trim(xmlLangAtt.value);
          if (_value.length > 0) {
            language = _value;
          } else {
            language = null;
          }
        }
        var relAtt = current.getAttributeNode('rel');
        var revAtt = current.getAttributeNode('rev');
        var typeofAtt = current.getAttributeNode('typeof');
        var propertyAtt = current.getAttributeNode('property');
        var datatypeAtt = current.getAttributeNode('datatype');
        var datetimeAtt = this.inHTMLMode ? current.getAttributeNode('datetime') : null;
        var contentAtt = current.getAttributeNode('content');
        var aboutAtt = current.getAttributeNode('about');
        var srcAtt = current.getAttributeNode('src');
        var resourceAtt = current.getAttributeNode('resource');
        var hrefAtt = current.getAttributeNode('href');
        var inlistAtt = current.getAttributeNode('inlist');
        var relAttPredicates = [];
        var predicate, values;
        if (relAtt) {
          values = this.tokenize(relAtt.value);
          for (var _i4 = 0; _i4 < values.length; _i4++) {
            predicate = this.parsePredicate(values[_i4], vocabulary, context.terms, prefixes, base, this.inHTMLMode && propertyAtt !== null);
            if (predicate) {
              relAttPredicates.push(predicate);
            }
          }
        }
        var revAttPredicates = [];
        if (revAtt) {
          values = this.tokenize(revAtt.value);
          for (var _i5 = 0; _i5 < values.length; _i5++) {
            predicate = this.parsePredicate(values[_i5], vocabulary, context.terms, prefixes, base, this.inHTMLMode && propertyAtt);
            if (predicate) {
              revAttPredicates.push(predicate);
            }
          }
        }
        // Section 3.1, bullet 7
        if (this.inHTMLMode && (relAtt || revAtt) && propertyAtt) {
          if (relAttPredicates.length === 0) {
            relAtt = null;
          }
          if (revAttPredicates.length === 0) {
            revAtt = null;
          }
        }
        if (relAtt || revAtt) {
          // Sequence Step 6: establish new subject and value
          if (aboutAtt) {
            newSubject = this.parseSafeCURIEOrCURIEOrURI(aboutAtt.value, prefixes, base);
          }
          if (typeofAtt) {
            typedResource = newSubject;
          }
          if (!newSubject) {
            if (current.parentNode.nodeType === Node.DOCUMENT_NODE) {
              newSubject = removeHash(current.baseURI);
            } else if (context.parentObject) {
              // TODO: Verify: If the xml:base has been set and the parentObject is the baseURI of the parent, then the subject needs to be the new base URI
              newSubject = removeHash(current.parentNode.baseURI) === context.parentObject ? removeHash(current.baseURI) : context.parentObject;
            }
          }
          if (resourceAtt) {
            currentObjectResource = this.parseSafeCURIEOrCURIEOrURI(resourceAtt.value, prefixes, base);
          }
          if (!currentObjectResource) {
            if (hrefAtt) {
              currentObjectResource = this.resolveAndNormalize(base, encodeURI(hrefAtt.value));
            } else if (srcAtt) {
              currentObjectResource = this.resolveAndNormalize(base, encodeURI(srcAtt.value));
            } else if (typeofAtt && !aboutAtt && !(this.inXHTMLMode && (current.localName === 'head' || current.localName === 'body'))) {
              currentObjectResource = this.newBlankNode();
            }
          }
          if (typeofAtt && !aboutAtt && this.inXHTMLMode && (current.localName === 'head' || current.localName === 'body')) {
            typedResource = newSubject;
          } else if (typeofAtt && !aboutAtt) {
            typedResource = currentObjectResource;
          }
        } else if (propertyAtt && !contentAtt && !datatypeAtt) {
          // Sequence Step 5.1: establish a new subject
          if (aboutAtt) {
            newSubject = this.parseSafeCURIEOrCURIEOrURI(aboutAtt.value, prefixes, base);
            if (typeofAtt) {
              typedResource = newSubject;
            }
          }
          if (!newSubject && current.parentNode.nodeType === Node.DOCUMENT_NODE) {
            newSubject = removeHash(current.baseURI);
            if (typeofAtt) {
              typedResource = newSubject;
            }
          } else if (!newSubject && context.parentObject) {
            // TODO: Verify: If the xml:base has been set and the parentObject is the baseURI of the parent, then the subject needs to be the new base URI
            newSubject = removeHash(current.parentNode.baseURI) === context.parentObject ? removeHash(current.baseURI) : context.parentObject;
          }
          if (typeofAtt && !typedResource) {
            if (resourceAtt) {
              typedResource = this.parseSafeCURIEOrCURIEOrURI(resourceAtt.value, prefixes, base);
            }
            if (!typedResource && hrefAtt) {
              typedResource = this.resolveAndNormalize(base, encodeURI(hrefAtt.value));
            }
            if (!typedResource && srcAtt) {
              typedResource = this.resolveAndNormalize(base, encodeURI(srcAtt.value));
            }
            if (!typedResource && (this.inXHTMLMode || this.inHTMLMode) && (current.localName === 'head' || current.localName === 'body')) {
              typedResource = newSubject;
            }
            if (!typedResource) {
              typedResource = this.newBlankNode();
            }
            currentObjectResource = typedResource;
          }
          // console.log(current.localName+", newSubject="+newSubject+", typedResource="+typedResource+", currentObjectResource="+currentObjectResource)
        } else {
          // Sequence Step 5.2: establish a new subject
          if (aboutAtt) {
            newSubject = this.parseSafeCURIEOrCURIEOrURI(aboutAtt.value, prefixes, base);
          }
          if (!newSubject && resourceAtt) {
            newSubject = this.parseSafeCURIEOrCURIEOrURI(resourceAtt.value, prefixes, base);
          }
          if (!newSubject && hrefAtt) {
            newSubject = this.resolveAndNormalize(base, encodeURI(hrefAtt.value));
          }
          if (!newSubject && srcAtt) {
            newSubject = this.resolveAndNormalize(base, encodeURI(srcAtt.value));
          }
          if (!newSubject) {
            if (current.parentNode.nodeType === Node.DOCUMENT_NODE) {
              newSubject = removeHash(current.baseURI);
            } else if ((this.inXHTMLMode || this.inHTMLMode) && (current.localName === 'head' || current.localName === 'body')) {
              newSubject = removeHash(current.parentNode.baseURI) === context.parentObject ? removeHash(current.baseURI) : context.parentObject;
            } else if (typeofAtt) {
              newSubject = this.newBlankNode();
            } else if (context.parentObject) {
              // TODO: Verify: If the xml:base has been set and the parentObject is the baseURI of the parent, then the subject needs to be the new base URI
              newSubject = removeHash(current.parentNode.baseURI) === context.parentObject ? removeHash(current.baseURI) : context.parentObject;
              if (!propertyAtt) {
                skip = true;
              }
            }
          }
          if (typeofAtt) {
            typedResource = newSubject;
          }
        }
        // console.log(current.tagName+": newSubject="+newSubject+", currentObjectResource="+currentObjectResource+", typedResource="+typedResource+", skip="+skip)
        // var rdfaData = null
        if (newSubject) {
          // this.newSubject(current,newSubject)
          if (aboutAtt || resourceAtt || typedResource) {
            var id = newSubject;
            if (typeofAtt && !aboutAtt && !resourceAtt && currentObjectResource) {
              id = currentObjectResource;
            }
            // console.log("Setting data attribute for "+current.localName+" for subject "+id)
            this.newSubjectOrigin(current, id);
          }
        }
        // Sequence Step 7: generate type triple
        if (typedResource) {
          values = this.tokenize(typeofAtt.value);
          for (var _i6 = 0; _i6 < values.length; _i6++) {
            var object = this.parseTermOrCURIEOrAbsURI(values[_i6], vocabulary, context.terms, prefixes, base);
            if (object) {
              this.addTriple(current, typedResource, RDFaProcessor.typeURI, {
                type: RDFaProcessor.objectURI,
                value: object
              });
            }
          }
        }
        // Sequence Step 8: new list mappings if there is a new subject
        // console.log("Step 8: newSubject="+newSubject+", context.parentObject="+context.parentObject)
        if (newSubject && newSubject !== context.parentObject) {
          // console.log("Generating new list mapping for "+newSubject)
          listMapping = {};
          listMappingDifferent = true;
        }
        // Sequence Step 9: generate object triple
        if (currentObjectResource) {
          if (relAtt && inlistAtt) {
            for (var _i7 = 0; _i7 < relAttPredicates.length; _i7++) {
              var _list = listMapping[relAttPredicates[_i7]];
              if (!_list) {
                _list = [];
                listMapping[relAttPredicates[_i7]] = _list;
              }
              _list.push({
                type: RDFaProcessor.objectURI,
                value: currentObjectResource
              });
            }
          } else if (relAtt) {
            for (var _i8 = 0; _i8 < relAttPredicates.length; _i8++) {
              this.addTriple(current, newSubject, relAttPredicates[_i8], {
                type: RDFaProcessor.objectURI,
                value: currentObjectResource
              });
            }
          }
          if (revAtt) {
            for (var _i9 = 0; _i9 < revAttPredicates.length; _i9++) {
              this.addTriple(current, currentObjectResource, revAttPredicates[_i9], {
                type: RDFaProcessor.objectURI,
                value: newSubject
              });
            }
          }
        } else {
          // Sequence Step 10: incomplete triples
          if (newSubject && !currentObjectResource && (relAtt || revAtt)) {
            currentObjectResource = this.newBlankNode();
            // alert(current.tagName+": generated blank node, newSubject="+newSubject+" currentObjectResource="+currentObjectResource)
          }
          if (relAtt && inlistAtt) {
            for (var _i10 = 0; _i10 < relAttPredicates.length; _i10++) {
              var _list2 = listMapping[relAttPredicates[_i10]];
              if (!_list2) {
                _list2 = [];
                listMapping[predicate] = _list2;
              }
              // console.log("Adding incomplete list for "+predicate)
              incomplete.push({
                predicate: relAttPredicates[_i10],
                list: _list2
              });
            }
          } else if (relAtt) {
            for (var _i11 = 0; _i11 < relAttPredicates.length; _i11++) {
              incomplete.push({
                predicate: relAttPredicates[_i11],
                forward: true
              });
            }
          }
          if (revAtt) {
            for (var _i12 = 0; _i12 < revAttPredicates.length; _i12++) {
              incomplete.push({
                predicate: revAttPredicates[_i12],
                forward: false
              });
            }
          }
        }
        // Step 11: Current property values
        if (propertyAtt) {
          var datatype = null;
          var content = null;
          if (datatypeAtt) {
            datatype = datatypeAtt.value === '' ? RDFaProcessor.PlainLiteralURI : this.parseTermOrCURIEOrAbsURI(datatypeAtt.value, vocabulary, context.terms, prefixes, base);
            if (datetimeAtt && !contentAtt) {
              content = datetimeAtt.value;
            } else {
              content = datatype === RDFaProcessor.XMLLiteralURI || datatype === RDFaProcessor.HTMLLiteralURI ? null : contentAtt ? contentAtt.value : current.textContent;
            }
          } else if (contentAtt) {
            datatype = RDFaProcessor.PlainLiteralURI;
            content = contentAtt.value;
          } else if (datetimeAtt) {
            content = datetimeAtt.value;
            datatype = RDFaProcessor.deriveDateTimeType(content);
            if (!datatype) {
              datatype = RDFaProcessor.PlainLiteralURI;
            }
          } else if (!relAtt && !revAtt) {
            if (resourceAtt) {
              content = this.parseSafeCURIEOrCURIEOrURI(resourceAtt.value, prefixes, base);
            }
            if (!content && hrefAtt) {
              content = this.resolveAndNormalize(base, encodeURI(hrefAtt.value));
            } else if (!content && srcAtt) {
              content = this.resolveAndNormalize(base, encodeURI(srcAtt.value));
            }
            if (content) {
              datatype = RDFaProcessor.objectURI;
            }
          }
          if (!datatype) {
            if (typeofAtt && !aboutAtt) {
              datatype = RDFaProcessor.objectURI;
              content = typedResource;
            } else {
              content = current.textContent;
              if (this.inHTMLMode && current.localName === 'time') {
                datatype = RDFaProcessor.deriveDateTimeType(content);
              }
              if (!datatype) {
                datatype = RDFaProcessor.PlainLiteralURI;
              }
            }
          }
          values = this.tokenize(propertyAtt.value);
          for (var _i13 = 0; _i13 < values.length; _i13++) {
            var _predicate2 = this.parsePredicate(values[_i13], vocabulary, context.terms, prefixes, base);
            if (_predicate2) {
              if (inlistAtt) {
                var _list3 = listMapping[_predicate2];
                if (!_list3) {
                  _list3 = [];
                  listMapping[_predicate2] = _list3;
                }
                _list3.push(datatype === RDFaProcessor.XMLLiteralURI || datatype === RDFaProcessor.HTMLLiteralURI ? {
                  type: datatype,
                  value: current.childNodes
                } : {
                  type: datatype || RDFaProcessor.PlainLiteralURI,
                  value: content,
                  language: language
                });
              } else {
                if (datatype === RDFaProcessor.XMLLiteralURI || datatype === RDFaProcessor.HTMLLiteralURI) {
                  this.addTriple(current, newSubject, _predicate2, {
                    type: datatype,
                    value: current.childNodes
                  });
                } else {
                  this.addTriple(current, newSubject, _predicate2, {
                    type: datatype || RDFaProcessor.PlainLiteralURI,
                    value: content,
                    language: language
                  });
                  // console.log(newSubject+" "+predicate+"="+content)
                }
              }
            }
          }
        }
        // Sequence Step 12: complete incomplete triples with new subject
        if (newSubject && !skip) {
          for (var _i14 = 0; _i14 < context.incomplete.length; _i14++) {
            if (context.incomplete[_i14].list) {
              // console.log("Adding subject "+newSubject+" to list for "+context.incomplete[i].predicate)
              // TODO: it is unclear what to do here
              context.incomplete[_i14].list.push({
                type: RDFaProcessor.objectURI,
                value: newSubject
              });
            } else if (context.incomplete[_i14].forward) {
              // console.log(current.tagName+": completing forward triple "+context.incomplete[i].predicate+" with object="+newSubject)
              this.addTriple(current, context.subject, context.incomplete[_i14].predicate, {
                type: RDFaProcessor.objectURI,
                value: newSubject
              });
            } else {
              // console.log(current.tagName+": completing reverse triple with object="+context.subject)
              this.addTriple(current, newSubject, context.incomplete[_i14].predicate, {
                type: RDFaProcessor.objectURI,
                value: context.subject
              });
            }
          }
        }
        var childContext = null;
        var listSubject = newSubject;
        if (skip) {
          // TODO: should subject be null?
          childContext = this.push(context, context.subject);
          // TODO: should the entObject be passed along?  If not, then intermediary children will keep properties from being associated with incomplete triples.
          // TODO: Verify: if the current baseURI has changed and the parentObject is the parent's base URI, then the baseURI should change
          childContext.parentObject = removeHash(current.parentNode.baseURI) === context.parentObject ? removeHash(current.baseURI) : context.parentObject;
          childContext.incomplete = context.incomplete;
          childContext.language = language;
          childContext.prefixes = prefixes;
          childContext.vocabulary = vocabulary;
        } else {
          childContext = this.push(context, newSubject);
          childContext.parentObject = currentObjectResource || newSubject || context.subject;
          childContext.prefixes = prefixes;
          childContext.incomplete = incomplete;
          if (currentObjectResource) {
            // console.log("Generating new list mapping for "+currentObjectResource)
            listSubject = currentObjectResource;
            listMapping = {};
            listMappingDifferent = true;
          }
          childContext.listMapping = listMapping;
          childContext.language = language;
          childContext.vocabulary = vocabulary;
        }
        if (listMappingDifferent) {
          // console.log("Pushing list parent "+current.localName)
          queue.unshift({
            parent: current,
            context: context,
            subject: listSubject,
            listMapping: listMapping
          });
        }
        for (var child = current.lastChild; child; child = child.previousSibling) {
          if (child.nodeType === Node.ELEMENT_NODE) {
            // console.log("Pushing child "+child.localName)
            // child.baseURI = current.baseURI
            queue.unshift({
              current: child,
              context: childContext
            });
          }
        }
      }
      if (this.inHTMLMode) {
        this.copyProperties();
      }
      for (var _i15 = 0; _i15 < this.finishedHandlers.length; _i15++) {
        this.finishedHandlers[_i15](node);
      }
    }
  }, {
    key: "push",
    value: function push(parent, subject) {
      return {
        parent: parent,
        subject: subject || (parent ? parent.subject : null),
        parentObject: null,
        incomplete: [],
        listMapping: parent ? parent.listMapping : {},
        language: parent ? parent.language : this.language,
        prefixes: parent ? parent.prefixes : this.target.graph.prefixes,
        terms: parent ? parent.terms : this.target.graph.terms,
        vocabulary: parent ? parent.vocabulary : this.vocabulary
      };
    }
  }, {
    key: "resolveAndNormalize",
    value: function resolveAndNormalize(base, uri) {
      // console.log("Joining " + uri + " to " + base + " making " +  Uri.join(uri, base))
      return Uri.join(uri, base); // @@ normalize?
    }
  }, {
    key: "setContext",
    value: function setContext(node) {
      // We only recognized XHTML+RDFa 1.1 if the version is set propertyly
      if (node.localName === 'html' && node.getAttribute('version') === 'XHTML+RDFa 1.1') {
        this.setXHTMLContext();
      } else if (node.localName === 'html' || node.namespaceURI === 'http://www.w3.org/1999/xhtml') {
        if (typeof document !== 'undefined' && document.doctype) {
          if (document.doctype.publicId === '-//W3C//DTD XHTML+RDFa 1.0//EN' && document.doctype.systemId === 'http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd') {
            console.log('WARNING: RDF 1.0 is not supported.  Defaulting to HTML5 mode.');
            this.setHTMLContext();
          } else if (document.doctype.publicId === '-//W3C//DTD XHTML+RDFa 1.1//EN' && document.doctype.systemId === 'http://www.w3.org/MarkUp/DTD/xhtml-rdfa-2.dtd') {
            this.setXHTMLContext();
          } else {
            this.setHTMLContext();
          }
        } else {
          this.setHTMLContext();
        }
      } else {
        this.setXMLContext();
      }
    }
  }, {
    key: "setHTMLContext",
    value: function setHTMLContext() {
      this.setInitialContext();
      this.langAttributes = [{
        namespaceURI: 'http://www.w3.org/XML/1998/namespace',
        localName: 'lang'
      }, {
        namespaceURI: null,
        localName: 'lang'
      }];
      this.inXHTMLMode = false;
      this.inHTMLMode = true;
    }
  }, {
    key: "setInitialContext",
    value: function setInitialContext() {
      this.vocabulary = null;
      // By default, the prefixes are terms are loaded to the RDFa 1.1. standard within the graph constructor
      this.langAttributes = [{
        namespaceURI: 'http://www.w3.org/XML/1998/namespace',
        localName: 'lang'
      }];
    }
  }, {
    key: "setXHTMLContext",
    value: function setXHTMLContext() {
      this.setInitialContext();
      this.inXHTMLMode = true;
      this.inHTMLMode = false;
      this.langAttributes = [{
        namespaceURI: 'http://www.w3.org/XML/1998/namespace',
        localName: 'lang'
      }, {
        namespaceURI: null,
        localName: 'lang'
      }];
      // From http://www.w3.org/2011/rdfa-context/xhtml-rdfa-1.1
      this.target.graph.terms['alternate'] = 'http://www.w3.org/1999/xhtml/vocab#alternate';
      this.target.graph.terms['appendix'] = 'http://www.w3.org/1999/xhtml/vocab#appendix';
      this.target.graph.terms['bookmark'] = 'http://www.w3.org/1999/xhtml/vocab#bookmark';
      this.target.graph.terms['cite'] = 'http://www.w3.org/1999/xhtml/vocab#cite';
      this.target.graph.terms['chapter'] = 'http://www.w3.org/1999/xhtml/vocab#chapter';
      this.target.graph.terms['contents'] = 'http://www.w3.org/1999/xhtml/vocab#contents';
      this.target.graph.terms['copyright'] = 'http://www.w3.org/1999/xhtml/vocab#copyright';
      this.target.graph.terms['first'] = 'http://www.w3.org/1999/xhtml/vocab#first';
      this.target.graph.terms['glossary'] = 'http://www.w3.org/1999/xhtml/vocab#glossary';
      this.target.graph.terms['help'] = 'http://www.w3.org/1999/xhtml/vocab#help';
      this.target.graph.terms['icon'] = 'http://www.w3.org/1999/xhtml/vocab#icon';
      this.target.graph.terms['index'] = 'http://www.w3.org/1999/xhtml/vocab#index';
      this.target.graph.terms['last'] = 'http://www.w3.org/1999/xhtml/vocab#last';
      this.target.graph.terms['license'] = 'http://www.w3.org/1999/xhtml/vocab#license';
      this.target.graph.terms['meta'] = 'http://www.w3.org/1999/xhtml/vocab#meta';
      this.target.graph.terms['next'] = 'http://www.w3.org/1999/xhtml/vocab#next';
      this.target.graph.terms['prev'] = 'http://www.w3.org/1999/xhtml/vocab#prev';
      this.target.graph.terms['previous'] = 'http://www.w3.org/1999/xhtml/vocab#previous';
      this.target.graph.terms['section'] = 'http://www.w3.org/1999/xhtml/vocab#section';
      this.target.graph.terms['stylesheet'] = 'http://www.w3.org/1999/xhtml/vocab#stylesheet';
      this.target.graph.terms['subsection'] = 'http://www.w3.org/1999/xhtml/vocab#subsection';
      this.target.graph.terms['start'] = 'http://www.w3.org/1999/xhtml/vocab#start';
      this.target.graph.terms['top'] = 'http://www.w3.org/1999/xhtml/vocab#top';
      this.target.graph.terms['up'] = 'http://www.w3.org/1999/xhtml/vocab#up';
      this.target.graph.terms['p3pv1'] = 'http://www.w3.org/1999/xhtml/vocab#p3pv1';
      // other
      this.target.graph.terms['related'] = 'http://www.w3.org/1999/xhtml/vocab#related';
      this.target.graph.terms['role'] = 'http://www.w3.org/1999/xhtml/vocab#role';
      this.target.graph.terms['transformation'] = 'http://www.w3.org/1999/xhtml/vocab#transformation';
    }
  }, {
    key: "setXMLContext",
    value: function setXMLContext() {
      this.setInitialContext();
      this.inXHTMLMode = false;
      this.inHTMLMode = false;
    }
  }, {
    key: "tokenize",
    value: function tokenize(str) {
      return this.trim(str).split(/\s+/);
    }
  }, {
    key: "toRDFNodeObject",
    value: function toRDFNodeObject(x) {
      var _this = this;
      if (typeof x === 'undefined') return undefined;
      if (typeof x === 'string') {
        if (x.substring(0, 2) === '_:') {
          if (typeof this.blankNodes[x.substring(2)] === 'undefined') {
            this.blankNodes[x.substring(2)] = new BlankNode(x.substring(2));
          }
          return this.blankNodes[x.substring(2)];
        }
        return rdf.namedNode(x);
      }
      switch (x.type) {
        case RDFaProcessor.objectURI:
          if (x.value.substring(0, 2) === '_:') {
            if (typeof this.blankNodes[x.value.substring(2)] === 'undefined') {
              this.blankNodes[x.value.substring(2)] = new BlankNode(x.value.substring(2));
            }
            return this.blankNodes[x.value.substring(2)];
          }
          return rdf.namedNode(x.value);
        case RDFaProcessor.PlainLiteralURI:
          return new Literal(x.value, x.language || '');
        case RDFaProcessor.XMLLiteralURI:
        case RDFaProcessor.HTMLLiteralURI:
          var string = '';
          Object.keys(x.value).forEach(function (i) {
            string += Util.domToString(x.value[i], _this.htmlOptions);
          });
          return new Literal(string, '', new NamedNode(x.type));
        default:
          return new Literal(x.value, '', new NamedNode(x.type));
      }
    }
  }, {
    key: "trim",
    value: function trim(str) {
      return str.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
    }
  }], [{
    key: "parseRDFaDOM",
    value: function parseRDFaDOM(dom, kb, base) {
      var p = new RDFaProcessor(kb, {
        'base': base
      });
      //  Cannot assign to read only property 'baseURI' of object '#<XMLDocument>':
      if (!dom.baseURI) {
        // Note this became a read-only attribute some time before 2018
        dom.baseURI = base; // oinly set if not already set
      }
      p.process(dom, {
        baseURI: base
      });
    }
  }, {
    key: "tokenize",
    value: function tokenize(str) {
      return this.trim(str).split(/\s+/);
    }
  }, {
    key: "trim",
    value: function trim(str) {
      return str.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
    }
  }]);
}();
export { RDFaProcessor as default };
RDFaProcessor.XMLLiteralURI = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#XMLLiteral';
RDFaProcessor.HTMLLiteralURI = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#HTML';
RDFaProcessor.PlainLiteralURI = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#PlainLiteral';
RDFaProcessor.objectURI = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#object';
RDFaProcessor.typeURI = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#type';
RDFaProcessor.nameChar = "[-A-Z_a-z\xC0-\xD6\xD8-\xF6\xF8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\u10000-\uEFFFF.0-9\xB7\u0300-\u036F\u203F-\u2040]";
RDFaProcessor.nameStartChar = "[A-Za-z\xC0-\xD6\xD8-\xF6\xF8-\xFF\u0100-\u0131\u0134-\u013E\u0141-\u0148\u014A-\u017E\u0180-\u01C3\u01CD-\u01F0\u01F4-\u01F5\u01FA-\u0217\u0250-\u02A8\u02BB-\u02C1\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03CE\u03D0-\u03D6\u03DA\u03DC\u03DE\u03E0\u03E2-\u03F3\u0401-\u040C\u040E-\u044F\u0451-\u045C\u045E-\u0481\u0490-\u04C4\u04C7-\u04C8\u04CB-\u04CC\u04D0-\u04EB\u04EE-\u04F5\u04F8-\u04F9\u0531-\u0556\u0559\u0561-\u0586\u05D0-\u05EA\u05F0-\u05F2\u0621-\u063A\u0641-\u064A\u0671-\u06B7\u06BA-\u06BE\u06C0-\u06CE\u06D0-\u06D3\u06D5\u06E5-\u06E6\u0905-\u0939\u093D\u0958-\u0961\u0985-\u098C\u098F-\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09DC-\u09DD\u09DF-\u09E1\u09F0-\u09F1\u0A05-\u0A0A\u0A0F-\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32-\u0A33\u0A35-\u0A36\u0A38-\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8B\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2-\u0AB3\u0AB5-\u0AB9\u0ABD\u0AE0\u0B05-\u0B0C\u0B0F-\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32-\u0B33\u0B36-\u0B39\u0B3D\u0B5C-\u0B5D\u0B5F-\u0B61\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99-\u0B9A\u0B9C\u0B9E-\u0B9F\u0BA3-\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB5\u0BB7-\u0BB9\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C60-\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CDE\u0CE0-\u0CE1\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D28\u0D2A-\u0D39\u0D60-\u0D61\u0E01-\u0E2E\u0E30\u0E32-\u0E33\u0E40-\u0E45\u0E81-\u0E82\u0E84\u0E87-\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA-\u0EAB\u0EAD-\u0EAE\u0EB0\u0EB2-\u0EB3\u0EBD\u0EC0-\u0EC4\u0F40-\u0F47\u0F49-\u0F69\u10A0-\u10C5\u10D0-\u10F6\u1100\u1102-\u1103\u1105-\u1107\u1109\u110B-\u110C\u110E-\u1112\u113C\u113E\u1140\u114C\u114E\u1150\u1154-\u1155\u1159\u115F-\u1161\u1163\u1165\u1167\u1169\u116D-\u116E\u1172-\u1173\u1175\u119E\u11A8\u11AB\u11AE-\u11AF\u11B7-\u11B8\u11BA\u11BC-\u11C2\u11EB\u11F0\u11F9\u1E00-\u1E9B\u1EA0-\u1EF9\u1F00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2126\u212A-\u212B\u212E\u2180-\u2182\u3041-\u3094\u30A1-\u30FA\u3105-\u312C\uAC00-\uD7A3\u4E00-\u9FA5\u3007\u3021-\u3029_]";
RDFaProcessor.NCNAME = new RegExp('^' + RDFaProcessor.nameStartChar + RDFaProcessor.nameChar + '*$');

/*
RDFaProcessor.prototype.resolveAndNormalize = function(base,href) {
   var u = base.resolve(href)
   var parsed = this.parseURI(u)
   parsed.normalize()
   return parsed.spec
}
*/

RDFaProcessor.dateTimeTypes = [{
  pattern: /-?P(?:[0-9]+Y)?(?:[0-9]+M)?(?:[0-9]+D)?(?:T(?:[0-9]+H)?(?:[0-9]+M)?(?:[0-9]+(?:\.[0-9]+)?S)?)?/,
  type: 'http://www.w3.org/2001/XMLSchema#duration'
}, {
  pattern: /-?(?:[1-9][0-9][0-9][0-9]|0[1-9][0-9][0-9]|00[1-9][0-9]|000[1-9])-[0-9][0-9]-[0-9][0-9]T(?:[0-1][0-9]|2[0-4]):[0-5][0-9]:[0-5][0-9](?:\.[0-9]+)?(?:Z|[+\-][0-9][0-9]:[0-9][0-9])?/,
  type: 'http://www.w3.org/2001/XMLSchema#dateTime'
}, {
  pattern: /-?(?:[1-9][0-9][0-9][0-9]|0[1-9][0-9][0-9]|00[1-9][0-9]|000[1-9])-[0-9][0-9]-[0-9][0-9](?:Z|[+\-][0-9][0-9]:[0-9][0-9])?/,
  type: 'http://www.w3.org/2001/XMLSchema#date'
}, {
  pattern: /(?:[0-1][0-9]|2[0-4]):[0-5][0-9]:[0-5][0-9](?:\.[0-9]+)?(?:Z|[+\-][0-9][0-9]:[0-9][0-9])?/,
  type: 'http://www.w3.org/2001/XMLSchema#time'
}, {
  pattern: /-?(?:[1-9][0-9][0-9][0-9]|0[1-9][0-9][0-9]|00[1-9][0-9]|000[1-9])-[0-9][0-9]/,
  type: 'http://www.w3.org/2001/XMLSchema#gYearMonth'
}, {
  pattern: /-?[1-9][0-9][0-9][0-9]|0[1-9][0-9][0-9]|00[1-9][0-9]|000[1-9]/,
  type: 'http://www.w3.org/2001/XMLSchema#gYear'
}];
var parseRDFaDOM = RDFaProcessor.parseRDFaDOM;
export { parseRDFaDOM };