Updates to vendors etc

vendor/symfony/css-selector/Parser/Parser.php

@@ -87,13 +87,17 @@ class Parser implements ParserInterface
         ];
     }
 
-    private function parseSelectorList(TokenStream $stream): array
+    private function parseSelectorList(TokenStream $stream, bool $isArgument = false): array
     {
         $stream->skipWhitespace();
         $selectors = [];
 
         while (true) {
-            $selectors[] = $this->parserSelectorNode($stream);
+            if ($isArgument && $stream->getPeek()->isDelimiter([')'])) {
+                break;
+            }
+
+            $selectors[] = $this->parserSelectorNode($stream, $isArgument);
 
             if ($stream->getPeek()->isDelimiter([','])) {
                 $stream->getNext();
@@ -106,15 +110,19 @@ class Parser implements ParserInterface
         return $selectors;
     }
 
-    private function parserSelectorNode(TokenStream $stream): Node\SelectorNode
+    private function parserSelectorNode(TokenStream $stream, bool $isArgument = false): Node\SelectorNode
     {
-        [$result, $pseudoElement] = $this->parseSimpleSelector($stream);
+        [$result, $pseudoElement] = $this->parseSimpleSelector($stream, false, $isArgument);
 
         while (true) {
             $stream->skipWhitespace();
             $peek = $stream->getPeek();
 
-            if ($peek->isFileEnd() || $peek->isDelimiter([','])) {
+            if (
+                $peek->isFileEnd()
+                || $peek->isDelimiter([','])
+                || ($isArgument && $peek->isDelimiter([')']))
+            ) {
                 break;
             }
 
@@ -129,7 +137,7 @@ class Parser implements ParserInterface
                 $combinator = ' ';
             }
 
-            [$nextSelector, $pseudoElement] = $this->parseSimpleSelector($stream);
+            [$nextSelector, $pseudoElement] = $this->parseSimpleSelector($stream, false, $isArgument);
             $result = new Node\CombinedSelectorNode($result, $combinator, $nextSelector);
         }
 
@@ -141,7 +149,7 @@ class Parser implements ParserInterface
      *
      * @throws SyntaxErrorException
      */
-    private function parseSimpleSelector(TokenStream $stream, bool $insideNegation = false): array
+    private function parseSimpleSelector(TokenStream $stream, bool $insideNegation = false, bool $isArgument = false): array
     {
         $stream->skipWhitespace();
 
@@ -154,7 +162,7 @@ class Parser implements ParserInterface
             if ($peek->isWhitespace()
                 || $peek->isFileEnd()
                 || $peek->isDelimiter([',', '+', '>', '~'])
-                || ($insideNegation && $peek->isDelimiter([')']))
+                || ($isArgument && $peek->isDelimiter([')']))
             ) {
                 break;
             }
@@ -215,7 +223,7 @@ class Parser implements ParserInterface
                         throw SyntaxErrorException::nestedNot();
                     }
 
-                    [$argument, $argumentPseudoElement] = $this->parseSimpleSelector($stream, true);
+                    [$argument, $argumentPseudoElement] = $this->parseSimpleSelector($stream, true, true);
                     $next = $stream->getNext();
 
                     if (null !== $argumentPseudoElement) {
@@ -227,6 +235,24 @@ class Parser implements ParserInterface
                     }
 
                     $result = new Node\NegationNode($result, $argument);
+                } elseif ('is' === strtolower($identifier)) {
+                    $selectors = $this->parseSelectorList($stream, true);
+
+                    $next = $stream->getNext();
+                    if (!$next->isDelimiter([')'])) {
+                        throw SyntaxErrorException::unexpectedToken('")"', $next);
+                    }
+
+                    $result = new Node\MatchingNode($result, $selectors);
+                } elseif ('where' === strtolower($identifier)) {
+                    $selectors = $this->parseSelectorList($stream, true);
+
+                    $next = $stream->getNext();
+                    if (!$next->isDelimiter([')'])) {
+                        throw SyntaxErrorException::unexpectedToken('")"', $next);
+                    }
+
+                    $result = new Node\SpecificityAdjustmentNode($result, $selectors);
                 } else {
                     $arguments = [];
                     $next = null;