Merge pull request #27 from qubyte/allow-empty-language-in-extended-e…

…ncoding Allow an empty language section in extended header encoding.
jhermsmeier · Jul 2, 2022 · 82d0580 · 82d0580
2 parents b191287 + 8bf518d
commit 82d0580
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diff --git a/lib/link.js b/lib/link.js
@@ -301,7 +301,7 @@ Link.expandRelations = function( ref ) {
  * @return {Object}
  */
 Link.parseExtendedValue = function( value ) {
-  var parts = /([^']+)?(?:'([^']+)')?(.+)/.exec( value )
+  var parts = /([^']+)?(?:'([^']*)')?(.+)/.exec( value )
   return {
     language: parts[2].toLowerCase(),
     encoding: Link.isCompatibleEncoding( parts[1] ) ?

diff --git a/test/encoding.js b/test/encoding.js
@@ -35,4 +35,18 @@ context( 'Encodings', function() {
     assert.deepEqual( link.refs, refs )
   })
 
+  test( 'language optional', function() {
+    var link = Link.parse( '</risk-mitigation>; rel="start"; title*=UTF-8\'\'%E2%91%A0%E2%93%AB%E2%85%93%E3%8F%A8%E2%99%B3%F0%9D%84%9E%CE%BB' )
+    var refs = [{
+      uri: '/risk-mitigation',
+      rel: 'start',
+      'title*': {
+        language: '',
+        encoding: null,
+        value: '①⓫⅓㏨♳𝄞λ'
+      },
+    }]
+    // console.log( inspect( link ) )
+    assert.deepEqual( link.refs, refs )
+  })
 })