관리-도구
편집 파일: TokenizerPatterns.php
<?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 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 { 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})(?:\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.')*'; } 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'; } }