fix(parsing): support encoding and decoding RegExps

Fixes NODE-1464
mongodb-js · May 22, 2018 · 06691f6 · 06691f6
1 parent 44afbb8
commit 06691f6
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Showing 2 changed files with 16 additions and 1 deletion.
diff --git a/lib/ext_json.js b/lib/ext_json.js
@@ -230,8 +230,14 @@ function serializeDocument(doc, options) {
     } else if (val != null && typeof val === 'object') {
       _doc[name] = serializeDocument(val, options);
     }
-
     _doc[name] = serializeValue(val, options);
+    if (val instanceof RegExp) {
+      let flags = val.flags;
+      if (flags === undefined) {
+        flags = val.toString().match(/[gimuy]*$/)[0];
+      }
+      _doc[name] = codecs['BSONRegExp'].toExtendedJSON({ pattern: val.source, options: flags });
+    }
   }
 
   return _doc;

diff --git a/test/extend_mongodb_tests.js b/test/extend_mongodb_tests.js
@@ -204,6 +204,15 @@ describe('Extended JSON', function() {
           date: dt
         });
       });
+
+      it('should allow regexp', function() {
+        const parsedRegExp = extJSON.stringify({ test: /some-regex/i }, { relaxed: true });
+        const parsedBSONRegExp = extJSON.stringify(
+          { test: new BSONRegExp('some-regex', 'i') },
+          { relaxed: true }
+        );
+        expect(parsedRegExp).to.eql(parsedBSONRegExp);
+      });
     });
   });
 });