← All changes | vendor/symfony/css-selector/Parser/Reader.php +7 -2 4.4.4 → 4.4.8 View file →

		@@ -22,8 +22,10 @@
22	22	* @internal
23	23	*/
24	24	class Reader
25	25	{
	26	+ private static array $anchoredPatterns = [];
	27	+
26	28	private int $length;
27	29	private int $position = 0;
28	30
29	31	public function __construct(
		@@ -60,11 +62,14 @@
60	62	}
61	63
62	64	public function findPattern(string $pattern): array|false
63	65	{
64		- $source = substr($this->source, $this->position);
	66	+ // Match in place instead of copying the remaining source before every probe.
	67	+ // Combined with an offset, "^" still anchors at the start of the whole subject,
	68	+ // so a leading anchor is turned into "\\G", which anchors at the offset instead.
	69	+ $pattern = self::$anchoredPatterns[$pattern] ??= '^' === ($pattern[1] ?? '') ? $pattern[0].'\\G'.substr($pattern, 2) : $pattern;
65	70
66		- if (preg_match($pattern, $source, $matches)) {
	71	+ if (preg_match($pattern, $this->source, $matches, 0, $this->position)) {
67	72	return $matches;
68	73	}
69	74
70	75	return false;