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Not working yet. Note needs jquery.xmlns.js which is not in this libr…
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…ary yet
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Tim Berners-Lee committed Nov 5, 2011
1 parent 5d6e815 commit 9f1ff22
Showing 1 changed file with 57 additions and 51 deletions.
108 changes: 57 additions & 51 deletions content/js/rdf/rdfa.js
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Expand Up @@ -104,21 +104,21 @@ $rdf.curie.createCurie = function (uri, options) {

$rdf.curie = function (curie, options) {
var opts = $rdf.extend({}, $rdf.curie.defaults, {
namespaces: thisElement.xmlns()
namespaces: this.xmlns()
}, options || {});
return $rdf.curie(curie, opts);
};

$rdf.safeCurie = function (safeCurie, options) {
var opts = $rdf.extend({}, $rdf.curie.defaults, {
namespaces: thisElement.xmlns()
namespaces: this.xmlns()
}, options || {});
return $rdf.curie.safeCurie(safeCurie, opts);
};

$rdf.createCurie = function (uri, options) {
var opts = $rdf.extend({}, $rdf.curie.defaults, {
namespaces: thisElement.xmlns()
namespaces: this.xmlns()
}, options || {});
return $rdf.curie.createCurie(uri, opts);
};
Expand All @@ -131,7 +131,7 @@ $rdf.curie.defaults = {

$rdf.safeCurie = function (safeCurie, options) {
var opts = $rdf.extend({}, $rdf.curie.defaults, {
namespaces: thisElement.xmlns()
namespaces: this.xmlns()
}, options || {});
return $rdf.safeCurie(safeCurie, opts);
};
Expand All @@ -143,9 +143,12 @@ $rdf.safeCurie = function (safeCurie, options) {
$rdf.rdfa = {};

$rdf.rdfa.parse = function (dom, kb, baseUri, doc) {
return $rdf.rdfa.parseThis.call($(dom), kb, baseUri, doc);
};

$rdf.rdfa.parseThis = function (kb, baseUri, doc) {
this.kb = kb;
this.baseUri = baseUri;
thisElement = dom;


// Agenda:
Expand Down Expand Up @@ -235,9 +238,12 @@ $rdf.rdfa.parse = function (dom, kb, baseUri, doc) {
var i, e, a, tag, name, value, attMap, prefix,
atts = {},
nsMap = {};
var e = elem[0];
// var e = elem[0]; // @@ original -- eh? fails
var e = elem;
nsMap[':length'] = 0;

if (e.nodeType == 9) return { atts: atts, namespaces: nsMap }; // Document

if (e.attributes && e.attributes.getNamedItemNS) {
attMap = e.attributes;
for (i = 0; i < attMap.length; i += 1) {
Expand Down Expand Up @@ -391,7 +397,7 @@ $rdf.rdfa.parse = function (dom, kb, baseUri, doc) {
subject = docResource;
} else if (atts['typeof'] !== undefined) {
subject = kb.bnode();
} else if (elem[0].parentNode.nodeType === 1) {
} else if (elem[0].parentNode && elem[0].parentNode.nodeType === 1) {
subject = context.object || getObjectResource(elem.parent()) || getSubject(elem.parent()).subject;
skip = !r && atts.property === undefined;
} else {
Expand Down Expand Up @@ -419,7 +425,7 @@ $rdf.rdfa.parse = function (dom, kb, baseUri, doc) {
if (context.lang) {
lang = context.lang;
} else {
if (elem[0].parentNode.nodeType === 1) {
if (elem[0].parentNode && elem[0].parentNode.nodeType === 1) {
lang = getLang(elem.parent());
}
}
Expand All @@ -441,7 +447,7 @@ $rdf.rdfa.parse = function (dom, kb, baseUri, doc) {
serialize = function (elem, ignoreNs) {
var i, string = '', atts, a, name, ns, tag;
elem.contents().each(function () {
var j = $(thisElement), // @@@ ? Use of "this'?
var j = $(this), // @@@ ? Use of "this'?
e = j[0];
if (e.nodeType === 1) { // tests whether the node is an element
name = e.nodeName.toLowerCase();
Expand Down Expand Up @@ -488,30 +494,30 @@ $rdf.rdfa.parse = function (dom, kb, baseUri, doc) {

// Originally:
// This is the main function whcih extracts te RDFA
// 'this' is the element
// $rdf.rdfaParser(kb).rdfa.call(element or document)
// 'this' is a JQ object for the DOM element to be parsed
// $rdf.rdfaParser(kb).rdfa.call($(element or document))
// parseElement = function(element) {
// this.rdfa.call(element);
// this.rdfa.call($(element));
// };


parse = function (thisElement, context) {
parse = function (context) {
var i, subject, resource, lang, datatype, content, text,
types, object, triple, parent,
properties, rels, revs,
forward, backward,
triples = [],
triples = [],
callback, relCurieOptions,
attsAndNs, atts, namespaces, ns,
children = thisElement.childNodes;
children = this.children();
context = context || {};
forward = context.forward || [];
backward = context.backward || [];
callback = context.callback || function () { return thisElement; };
attsAndNs = getAttributes(thisElement);
callback = context.callback || function () { return this; };
attsAndNs = getAttributes(this);
atts = attsAndNs.atts;
context.atts = atts;
namespaces = context.namespaces || thisElement.xmlns();
namespaces = context.namespaces || this.xmlns();
if (attsAndNs.namespaces[':length'] > 0) {
namespaces = $rdf.Util.extend({}, namespaces);
for (ns in attsAndNs.namespaces) {
Expand All @@ -521,10 +527,10 @@ $rdf.rdfa.parse = function (dom, kb, baseUri, doc) {
}
}
context.curieOptions = $rdf.Util.extend({},
rdfaCurieDefaults, { reserved: [], namespaces: namespaces, base: thisElement.base() });
rdfaCurieDefaults, { reserved: [], namespaces: namespaces, base: this.base() });
relCurieOptions = $rdf.Util.extend({}, context.curieOptions, { reserved: relReserved });
subject = getSubject(thisElement, context);
lang = getLang(thisElement, context);
subject = getSubject(this, context);
lang = getLang(this, context);
if (subject.skip) {
rels = context.forward;
revs = context.backward;
Expand All @@ -533,40 +539,40 @@ $rdf.rdfa.parse = function (dom, kb, baseUri, doc) {
} else {
subject = subject.subject;
if (forward.length > 0 || backward.length > 0) {
parent = context.subject || getSubject(thisElement.parent()).subject; // @@
parent = context.subject || getSubject(this.parent()).subject; // @@
for (i = 0; i < forward.length; i += 1) {
kb.add(parent, forward[i], subject, why);
// triple = callback.call(triple, thisElement.get(0), triple);
// triple = callback.call(triple, this.get(0), triple);
//if (triple !== undefined && triple !== null) {
// triples = triples.concat(triple);
//}
}
for (i = 0; i < backward.length; i += 1) {
kb.add(subject, backward[i], parent, why);
//triple = callback.call(triple, thisElement.get(0), triple);
//triple = callback.call(triple, this.get(0), triple);
//if (triple !== undefined && triple !== null) {
// triples = triples.concat(triple);
//}
}
}
resource = getObjectResource(thisElement, context);
types = resourcesFromCuries(atts['typeof'], thisElement, false, context.curieOptions);
resource = getObjectResource(this, context);
types = resourcesFromCuries(atts['typeof'], this, false, context.curieOptions);
for (i = 0; i < types.length; i += 1) {
kb.add(subject, type, types[i], why);
//triple = callback.call(triple, thisElement.get(0), triple);
//triple = callback.call(triple, this.get(0), triple);
//if (triple !== undefined && triple !== null) {
// triples = triples.concat(triple);
//}
}
properties = resourcesFromCuries(atts.property, thisElement, true, context.curieOptions);
properties = resourcesFromCuries(atts.property, this, true, context.curieOptions);
if (properties.length > 0) {
datatype = atts.datatype;
content = atts.content;
text = thisElement.text().replace(/"/g, '\\"'); //'
text = this.text().replace(/"/g, '\\"'); //'
if (datatype !== undefined && datatype !== '') {
datatype = $rdf.curie.parse(datatype, context.curieOptions);
if (datatype.toString() === rdfXMLLiteral) {
object = kb.literal(serialize(thisElement), undefined, rdfXMLLiteralSym );
object = kb.literal(serialize(this), undefined, rdfXMLLiteralSym );
} else if (content !== undefined) {
object = kb.literal(content, kb.sym(datatype));
} else {
Expand All @@ -580,21 +586,21 @@ $rdf.rdfa.parse = function (dom, kb, baseUri, doc) {
}
} else if (children.length === 0 ||
datatype === '') {
lang = getLang(thisElement, context);
lang = getLang(this, context);
if (lang === undefined) {
object = kb.literal('"' + text + '"'); //@@ added double quote marks??
} else {
object = kb.literal(text, undefined, lang);
}
} else {
object = kb.literal(serialize(thisElement), kb.sym(rdfXMLLiteral));
object = kb.literal(serialize(this), kb.sym(rdfXMLLiteral));
}
for (i = 0; i < properties.length; i += 1) {
kb.add(subject, properties[i], object, why);
}
}
rels = resourcesFromCuries(atts.rel, thisElement, true, relCurieOptions);
revs = resourcesFromCuries(atts.rev, thisElement, true, relCurieOptions);
rels = resourcesFromCuries(atts.rel, this, true, relCurieOptions);
revs = resourcesFromCuries(atts.rev, this, true, relCurieOptions);
if (atts.resource !== undefined || atts.href !== undefined) {
// make the triples immediately
if (rels !== undefined) {
Expand All @@ -612,40 +618,40 @@ $rdf.rdfa.parse = function (dom, kb, baseUri, doc) {
}
}
children.each(function () {
triples = triples.concat(rdfa.call($(thisElement), { forward: rels, backward: revs,
parse.call($(this), { forward: rels, backward: revs,
subject: subject, object: resource || subject,
lang: lang, namespaces: namespaces, callback: callback }));
lang: lang, namespaces: namespaces, callback: callback });
});
return triples;
return;
};

// Ad to list of gleaners @@@
// Add to list of gleaners @@@
gleaner = function (options) {
var type, atts;
if (options && options.about !== undefined) {
atts = getAttributes(thisElement).atts;
atts = getAttributes(this).atts;
if (options.about === null) {
return atts.property !== undefined ||
atts.rel !== undefined ||
atts.rev !== undefined ||
atts['typeof'] !== undefined;
} else {
return getSubject(thisElement, {atts: atts}).subject.value === options.about;
return getSubject(this, {atts: atts}).subject.value === options.about;
}
} else if (options && options.type !== undefined) {
type = getAttribute(thisElement, 'typeof');
type = getAttribute(this, 'typeof');
if (type !== undefined) {
return options.type === null ? true : this.curie(type) === options.type;
}
return false;
} else {
return parse(thisElement, options);
return parse(this, options);
}
}

return; // debug later @@@@@@@@
// return; // debug later @@@@@@@@

return parse(dom);
return parse.call(this);
// End of Parser object

}
Expand All @@ -669,15 +675,15 @@ $rdf.rdfa.parse = function (dom, kb, baseUri, doc) {
// 'this' is a jq bject whcih wraps an element
$jq.fn.rdfa = function (triple) {
if (triple === undefined) {
var triples = $jq.map($(thisElement), function (elem) {
var triples = $jq.map($(this), function (elem) {
return rdfa.call($(elem));
});
return $jq.rdf({ triples: triples });
} else {
$(thisElement).each(function () {
addRDFa.call($(thisElement), triple);
$(this).each(function () {
addRDFa.call($(this), triple);
});
return thisElement;
return this;
}
};
*/
Expand All @@ -701,10 +707,10 @@ $rdf.rdfa.parse = function (dom, kb, baseUri, doc) {
*/
/*
$jq.fn.removeRdfa = function (triple) {
$(thisElement).each(function () {
removeRDFa.call($(thisElement), triple);
$(this).each(function () {
removeRDFa.call($(this), triple);
});
return thisElement;
return this;
};
$jq.rdf.gleaners.push(gleaner);
Expand Down

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