Remove support for application/nquads alias.

Author: davidlehn

CHANGELOG.md

@@ -15,6 +15,9 @@
       usage.
     - The internal digest algorithm can be changed.
 
+### Removed
+- **BREAKING**: Remove `application/nquads` alias for `application/n-quads`.
+
 ## 8.3.2 - 2023-12-06
 
 ### Fixed

lib/jsonld.js

@@ -579,8 +579,7 @@ jsonld.normalize = jsonld.canonize = async function(input, options) {
   }, options.canonizeOptions || null);
 
   if('inputFormat' in options) {
-    if(options.inputFormat !== 'application/n-quads' &&
-      options.inputFormat !== 'application/nquads') {
+    if(options.inputFormat !== 'application/n-quads') {
       throw new JsonLdError(
         'Unknown canonicalization input format.',
         'jsonld.CanonizeError');
@@ -700,8 +699,7 @@ jsonld.toRDF = async function(input, options) {
   // output RDF dataset
   const dataset = _toRDF(expanded, options);
   if(options.format) {
-    if(options.format === 'application/n-quads' ||
-      options.format === 'application/nquads') {
+    if(options.format === 'application/n-quads') {
       return NQuads.serialize(dataset);
     }
     throw new JsonLdError(
@@ -1007,7 +1005,6 @@ jsonld.unregisterRDFParser = function(contentType) {
 
 // register the N-Quads RDF parser
 jsonld.registerRDFParser('application/n-quads', NQuads.parse);
-jsonld.registerRDFParser('application/nquads', NQuads.parse);
 
 /* URL API */
 jsonld.url = require('./url');

tests/misc.js

@@ -143,19 +143,18 @@ describe('other toRDF tests', () => {
     });
   });
 
-  it('should handle deprecated N-Quads format', done => {
+  it('should fail for deprecated N-Quads format', done => {
     const doc = {
       "@id": "https://example.com/",
       "https://example.com/test": "test"
     };
     const p = jsonld.toRDF(doc, {format: 'application/nquads'});
     assert(p instanceof Promise);
-    p.catch(e => {
-      assert.ifError(e);
-    }).then(output => {
-      assert.equal(
-        output,
-        '<https://example.com/> <https://example.com/test> "test" .\n');
+    p.then(() => {
+      assert.fail();
+    }).catch(e => {
+      assert(e);
+      assert.equal(e.name, 'jsonld.UnknownFormat');
       done();
     });
   });
@@ -232,21 +231,15 @@ describe('other fromRDF tests', () => {
     });
   });
 
-  it('should handle deprecated N-Quads format', done => {
+  it('should fail for deprecated N-Quads format', done => {
     const nq = '<https://example.com/> <https://example.com/test> "test" .\n';
     const p = jsonld.fromRDF(nq, {format: 'application/nquads'});
     assert(p instanceof Promise);
-    p.catch(e => {
-      assert.ifError(e);
-    }).then(output => {
-      assert.deepEqual(
-        output,
-        [{
-          "@id": "https://example.com/",
-          "https://example.com/test": [{
-            "@value": "test"
-          }]
-        }]);
+    p.then(() => {
+      assert.fail();
+    }).catch(e => {
+      assert(e);
+      assert.equal(e.name, 'jsonld.UnknownFormat');
       done();
     });
   });