Add language map BCP47 event and test.

Author: davidlehn

lib/expand.js

@@ -1139,7 +1139,18 @@ function _expandLanguageMap(activeCtx, languageMap, direction, options) {
   const rval = [];
   const keys = Object.keys(languageMap).sort();
   for(const key of keys) {
-    const expandedKey = _expandIri(activeCtx, key, {vocab: true}, options);
+    const expandedKey = _expandIri(activeCtx, key, {vocab: true}, {
+      ...options,
+      eventHandler: [
+        // filter to avoid relative reference events
+        ({event, next}) => {
+          if(event.code !== 'relative IRI after expansion') {
+            next();
+          }
+        },
+        options.eventHandler
+      ]
+    });
     let val = languageMap[key];
     if(!_isArray(val)) {
       val = [val];
@@ -1157,6 +1168,22 @@ function _expandLanguageMap(activeCtx, languageMap, direction, options) {
       }
       const val = {'@value': item};
       if(expandedKey !== '@none') {
+        if(!key.match(REGEX_BCP47)) {
+          if(options.eventHandler) {
+            _handleEvent({
+              event: {
+                type: ['JsonLdEvent'],
+                code: 'invalid @language value',
+                level: 'warning',
+                message: '@language value must be valid BCP47.',
+                details: {
+                  language: key
+                }
+              },
+              options
+            });
+          }
+        }
         val['@language'] = key.toLowerCase();
       }
       if(direction) {

tests/misc.js

@@ -1363,7 +1363,7 @@ describe('events', () => {
       const input =
 {
   "urn:property": {
-    "@language": "en_us",
+    "@language": "en_bad",
     "@value": "test"
   }
 }
@@ -1373,7 +1373,7 @@ describe('events', () => {
   {
     "urn:property": [
       {
-        "@language": "en_us",
+        "@language": "en_bad",
         "@value": "test"
       }
     ]
@@ -1402,7 +1402,7 @@ describe('events', () => {
       const input =
 {
   "@context": {
-    "@language": "en_us"
+    "@language": "en_bad"
   },
   "urn:property": "value"
 }
@@ -1412,7 +1412,7 @@ describe('events', () => {
   {
     "urn:property": [
       {
-        "@language": "en_us",
+        "@language": "en_bad",
         "@value": "value"
       }
     ]
@@ -1436,6 +1436,60 @@ describe('events', () => {
         testNotStrict: true
       });
     });
+
+    it('should emit for invalid @language map value', async () => {
+      const input =
+{
+  "@context": {
+    "urn:property": {
+      "@container": "@language"
+    }
+  },
+  "urn:property": {
+    "en_bad": "en",
+    "de": "de"
+  }
+}
+;
+      const expected =
+[
+  {
+    "urn:property": [
+      {
+        "@language": "de",
+        "@value": "de"
+      },
+      {
+        "@language": "en_bad",
+        "@value": "en"
+      }
+    ]
+  }
+]
+;
+
+      console.error('FIXME');
+      await _test({
+        type: 'expand',
+        input,
+        expected,
+        mapCounts: {
+          expansionMap: 2,
+          relativeIri: {
+            de: 1,
+            en_bad: 1
+          }
+        },
+        eventCounts: {
+          codes: {
+            'invalid @language value': 1
+          },
+          events: 1
+        },
+        testNotSafe: true,
+        testNotStrict: true
+      });
+    });
   });
 
   describe('properties', () => {