feat(vanilla): add testing infrastructure and tests (NK-wjnczv)

1 files changed, 33 insertions, 0 deletions

diff --git a/vanilla/node_modules/css-tree/lib/syntax/pseudo/lang.js b/vanilla/node_modules/css-tree/lib/syntax/pseudo/lang.js
new file mode 100644
index 0000000..3adfdb8
--- /dev/null
+++ b/vanilla/node_modules/css-tree/lib/syntax/pseudo/lang.js
@@ -0,0 +1,33 @@
+import { Comma, String as StringToken, Ident, RightParenthesis } from '../../tokenizer/index.js';
+
+export function parseLanguageRangeList() {
+    const children = this.createList();
+
+    this.skipSC();
+
+    loop: while (!this.eof) {
+        switch (this.tokenType) {
+            case Ident:
+                children.push(this.Identifier());
+                break;
+
+            case StringToken:
+                children.push(this.String());
+                break;
+
+            case Comma:
+                children.push(this.Operator());
+                break;
+
+            case RightParenthesis:
+                break loop;
+
+            default:
+                this.error('Identifier, string or comma is expected');
+        }
+
+        this.skipSC();
+    }
+
+    return children;
+}