<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace WPForms\Vendor\Symfony\Component\CssSelector\Parser\Tokenizer;

/**
 * CSS selector tokenizer patterns builder.
 *
 * This component is a port of the Python cssselect library,
 * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
 *
 * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
 *
 * @internal
 */
class TokenizerPatterns
{
    /**
     * @var string
     */
    private $unicodeEscapePattern;
    /**
     * @var string
     */
    private $simpleEscapePattern;
    /**
     * @var string
     */
    private $newLineEscapePattern;
    /**
     * @var string
     */
    private $escapePattern;
    /**
     * @var string
     */
    private $stringEscapePattern;
    /**
     * @var string
     */
    private $nonAsciiPattern;
    /**
     * @var string
     */
    private $nmCharPattern;
    /**
     * @var string
     */
    private $nmStartPattern;
    /**
     * @var string
     */
    private $identifierPattern;
    /**
     * @var string
     */
    private $hashPattern;
    /**
     * @var string
     */
    private $numberPattern;
    /**
     * @var string
     */
    private $quotedStringPattern;
    /**
     * Constructor.
     */
    public function __construct()
    {
        $this->unicodeEscapePattern = '\\\\([0-9a-f]{1,6})(?:\\r\\n|[ \\n\\r\\t\\f])?';
        $this->simpleEscapePattern = '\\\\(.)';
        $this->newLineEscapePattern = '\\\\(?:\\n|\\r\\n|\\r|\\f)';
        $this->escapePattern = $this->unicodeEscapePattern . '|\\\\[^\\n\\r\\f0-9a-f]';
        $this->stringEscapePattern = $this->newLineEscapePattern . '|' . $this->escapePattern;
        $this->nonAsciiPattern = '[^\\x00-\\x7F]';
        $this->nmCharPattern = '[_a-z0-9-]|' . $this->escapePattern . '|' . $this->nonAsciiPattern;
        $this->nmStartPattern = '[_a-z]|' . $this->escapePattern . '|' . $this->nonAsciiPattern;
        $this->identifierPattern = '(?:' . $this->nmStartPattern . ')(?:' . $this->nmCharPattern . ')*';
        $this->hashPattern = '#((?:' . $this->nmCharPattern . ')+)';
        $this->numberPattern = '[+-]?(?:[0-9]*\\.[0-9]+|[0-9]+)';
        $this->quotedStringPattern = '([^\\n\\r\\f%s]|' . $this->stringEscapePattern . ')*';
    }
    /**
     * @return string
     */
    public function getNewLineEscapePattern()
    {
        return '~^' . $this->newLineEscapePattern . '~';
    }
    /**
     * @return string
     */
    public function getSimpleEscapePattern()
    {
        return '~^' . $this->simpleEscapePattern . '~';
    }
    /**
     * @return string
     */
    public function getUnicodeEscapePattern()
    {
        return '~^' . $this->unicodeEscapePattern . '~i';
    }
    /**
     * @return string
     */
    public function getIdentifierPattern()
    {
        return '~^' . $this->identifierPattern . '~i';
    }
    /**
     * @return string
     */
    public function getHashPattern()
    {
        return '~^' . $this->hashPattern . '~i';
    }
    /**
     * @return string
     */
    public function getNumberPattern()
    {
        return '~^' . $this->numberPattern . '~';
    }
    /**
     * @param string $quote
     *
     * @return string
     */
    public function getQuotedStringPattern($quote)
    {
        return '~^' . \sprintf($this->quotedStringPattern, $quote) . '~i';
    }
}