<?php
namespace Automattic\WooCommerce\EmailEditorVendor\Symfony\Component\CssSelector\Parser\Tokenizer;
if (!defined('ABSPATH')) exit;
class TokenizerEscaping
{
 private $patterns;
 public function __construct(TokenizerPatterns $patterns)
 {
 $this->patterns = $patterns;
 }
 public function escapeUnicode(string $value): string
 {
 $value = $this->replaceUnicodeSequences($value);
 return preg_replace($this->patterns->getSimpleEscapePattern(), '$1', $value);
 }
 public function escapeUnicodeAndNewLine(string $value): string
 {
 $value = preg_replace($this->patterns->getNewLineEscapePattern(), '', $value);
 return $this->escapeUnicode($value);
 }
 private function replaceUnicodeSequences(string $value): string
 {
 return preg_replace_callback($this->patterns->getUnicodeEscapePattern(), function ($match) {
 $c = hexdec($match[1]);
 if (0x80 > $c %= 0x200000) {
 return \chr($c);
 }
 if (0x800 > $c) {
 return \chr(0xC0 | $c >> 6).\chr(0x80 | $c & 0x3F);
 }
 if (0x10000 > $c) {
 return \chr(0xE0 | $c >> 12).\chr(0x80 | $c >> 6 & 0x3F).\chr(0x80 | $c & 0x3F);
 }
 return '';
 }, $value);
 }
}
