2 files changed, 89 insertions, 0 deletions
diff --git a/vanilla/node_modules/css-tree/lib/syntax/pseudo/index.js b/vanilla/node_modules/css-tree/lib/syntax/pseudo/index.js
new file mode 100644
index 0000000..7d75fe1
--- /dev/null
+++ b/vanilla/node_modules/css-tree/lib/syntax/pseudo/index.js
@@ -0,0 +1,56 @@
+import { parseLanguageRangeList } from './lang.js';
+
+const selectorList = {
+    parse() {
+        return this.createSingleNodeList(
+            this.SelectorList()
+        );
+    }
+};
+
+const selector = {
+    parse() {
+        return this.createSingleNodeList(
+            this.Selector()
+        );
+    }
+};
+
+const identList = {
+    parse() {
+        return this.createSingleNodeList(
+            this.Identifier()
+        );
+    }
+};
+
+const langList = {
+    parse: parseLanguageRangeList
+};
+
+const nth = {
+    parse() {
+        return this.createSingleNodeList(
+            this.Nth()
+        );
+    }
+};
+
+export default {
+    'dir': identList,
+    'has': selectorList,
+    'lang': langList,
+    'matches': selectorList,
+    'is': selectorList,
+    '-moz-any': selectorList,
+    '-webkit-any': selectorList,
+    'where': selectorList,
+    'not': selectorList,
+    'nth-child': nth,
+    'nth-last-child': nth,
+    'nth-last-of-type': nth,
+    'nth-of-type': nth,
+    'slotted': selector,
+    'host': selector,
+    'host-context': selector
+};
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;
+}