Code Coverage for /src/src/Grammar/CustomPropertyMatcher.php

1	<?php
2	/**
3	* @file
4	* @license https://opensource.org/licenses/Apache-2.0 Apache-2.0
5	*/
6
7	namespace Wikimedia\CSS\Grammar;
8
9	use Wikimedia\CSS\Objects\ComponentValueList;
10	use Wikimedia\CSS\Objects\Token;
11
12	/**
13	* Matcher that matches a custom property (a CSS variable) example --name-of-variable
14	*
15	* This utilises regex to match the custom property --[a-zA-Z][a-zA-Z0-9-] without any input validation.
16	*
17	* @see https://www.w3.org/TR/2022/CR-css-variables-1-20220616/#custom-property
18	*/
19	class CustomPropertyMatcher extends Matcher {
20
21	/** @inheritDoc */
22	protected function generateMatches( ComponentValueList $values, $start, array $options ) {
23	$cv = $values[$start] ?? null;
24	if ( $cv instanceof Token && $cv->type() === Token::T_IDENT
25	&& preg_match( '/^\-\-[a-zA-Z][a-zA-Z0-9-]*$/', $cv->value() ) ) {
26	yield $this->makeMatch( $values, $start, $this->next( $values, $start, $options ) );
27	}
28	}
29	}