Parse graphs ending with a blank node.

Author: RubenVerborgh

lib/N3Parser.js

@@ -358,12 +358,15 @@ N3Parser.prototype = {
 
   // ### `_readPredicateAfterBlank` reads a predicate after an anonymous blank node
   _readPredicateAfterBlank: function (token) {
-    // If a dot follows a blank node in top context, there is no predicate
-    if (token.type === '.' && !this._contextStack.length) {
-      this._subject = null; // cancel the current quad
+    switch (token.type) {
+    case '.':
+    case '}':
+      // No predicate is coming if the triple is terminated here
+      this._subject = null;
       return this._readPunctuation(token);
+    default:
+      return this._readPredicate(token);
     }
-    return this._readPredicate(token);
   },
 
   // ### `_readListItem` reads items from a list

test/N3Parser-test.js

@@ -595,6 +595,14 @@ describe('N3Parser', function () {
                   ['a', 'd', 'e'],
                   ['a', 'd', 'f']));
 
+    it('should parse a default graph with a blank node ending with a dot',
+      shouldParse('{ [<p> <o>]. }',
+                  ['_:b0', 'p', 'o']));
+
+    it('should parse a default graph with a blank node ending without a dot',
+      shouldParse('{ [<p> <o>] }',
+                  ['_:b0', 'p', 'o']));
+
     it('should parse an empty named graph with an IRI',
       shouldParse('<g>{}'));
 
@@ -641,6 +649,14 @@ describe('N3Parser', function () {
                   ['a', 'd', 'e', 'g#h'],
                   ['a', 'd', 'f', 'g#h']));
 
+    it('should parse a named graph with a blank node ending with a dot',
+      shouldParse('<g> { [<p> <o>]. }',
+                  ['_:b0', 'p', 'o', 'g']));
+
+    it('should parse a named graph with a blank node ending without a dot',
+      shouldParse('<g> { [<p> <o>] }',
+                  ['_:b0', 'p', 'o', 'g']));
+
     it('should parse an empty anonymous graph',
       shouldParse('[] {}'));