Downcase all language values which are strings, considering framing case.

gkellogg · davidlehn · commit 1d5c07425482 · 2018-02-28T17:51:18.000-05:00
diff --git a/lib/expand.js b/lib/expand.js
@@ -467,7 +467,7 @@ function _expandObject({
           {code: 'invalid language-tagged string', value: value});
       }
       // ensure language value is lowercase
-      value = value.toLowerCase();
+      value = [].concat(value).map(v => _isString(v) ? v.toLowerCase() : v);
 
       _addValue(
         expandedParent, '@language', value, {propertyIsArray: options.isFrame});

Original file line number	Diff line number	Diff line change
`@@ -467,7 +467,7 @@ function _expandObject({`
`467`	`467`	`{code: 'invalid language-tagged string', value: value});`
`468`	`468`	`}`
`469`	`469`	`// ensure language value is lowercase`
`470`		`- value = value.toLowerCase();`
	`470`	`+ value = [].concat(value).map(v => _isString(v) ? v.toLowerCase() : v);`
`471`	`471`
`472`	`472`	`_addValue(`
`473`	`473`	`expandedParent, '@language', value, {propertyIsArray: options.isFrame});`