--- /dev/null
+<?php
+/**
+ * @file
+ * @license https://opensource.org/licenses/Apache-2.0 Apache-2.0
+ */
+
+namespace Wikimedia\CSS\Grammar;
+
+use Wikimedia\CSS\Objects\ComponentValueList;
+use Wikimedia\CSS\Objects\Token;
+
+/**
+ * Matcher that matches one of a set of values.
+ *
+ * This is intended for matching specific <delim-token>s, but will work for
+ * other types (case-sensitively) too. For the more common case-insensitive
+ * identifier matching, use KeywordMatcher.
+ *
+ * @see https://www.w3.org/TR/2016/CR-css-values-3-20160929/#component-types
+ */
+class DelimMatcher extends Matcher {
+ /** @var string One of the Token::T_* constants */
+ protected $type;
+
+ /** @var string[] Values to match */
+ protected $values;
+
+ /**
+ * @param string|string[] $values Token values to match
+ * @param array $options Options
+ * - type: (string) Token type to match. Default is Token::T_DELIM.
+ */
+ public function __construct( $values, array $options = [] ) {
+ $options += [
+ 'type' => Token::T_DELIM,
+ ];
+
+ $this->values = array_map( 'strval', (array)$values );
+ $this->type = $options['type'];
+ }
+
+ protected function generateMatches( ComponentValueList $values, $start, array $options ) {
+ $cv = isset( $values[$start] ) ? $values[$start] : null;
+ if ( $cv instanceof Token && $cv->type() === $this->type &&
+ in_array( $cv->value(), $this->values, true )
+ ) {
+ yield $this->makeMatch( $values, $start, $this->next( $values, $start, $options ) );
+ }
+ }
+}