Файл: vendor/symfony/css-selector/Parser/Tokenizer/TokenizerPatterns.php
Строк: 178
<?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 SymfonyComponentCssSelectorParserTokenizer;
/**
* 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
{
private string $unicodeEscapePattern;
private string $simpleEscapePattern;
private string $newLineEscapePattern;
private string $escapePattern;
private string $stringEscapePattern;
private string $nonAsciiPattern;
private string $nmCharPattern;
private string $nmStartPattern;
private string $identifierPattern;
private string $hashPattern;
private string $numberPattern;
private string $quotedStringPattern;
public function __construct()
{
$this->unicodeEscapePattern = '\\([0-9a-f]{1,6})(?:rn|[ nrtf])?';
$this->simpleEscapePattern = '\\(.)';
$this->newLineEscapePattern = '\\(?:n|rn|r|f)';
$this->escapePattern = $this->unicodeEscapePattern.'|\\[^nrf0-9a-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]+)';
$this->quotedStringPattern = '([^nrf\\%s]|'.$this->stringEscapePattern.')*';
}
public function getNewLineEscapePattern(): string
{
return '~'.$this->newLineEscapePattern.'~';
}
public function getSimpleEscapePattern(): string
{
return '~'.$this->simpleEscapePattern.'~';
}
public function getUnicodeEscapePattern(): string
{
return '~'.$this->unicodeEscapePattern.'~i';
}
public function getIdentifierPattern(): string
{
return '~^'.$this->identifierPattern.'~i';
}
public function getHashPattern(): string
{
return '~^'.$this->hashPattern.'~i';
}
public function getNumberPattern(): string
{
return '~^'.$this->numberPattern.'~';
}
public function getQuotedStringPattern(string $quote): string
{
return '~^'.sprintf($this->quotedStringPattern, $quote).'~i';
}
}