class TokenizerPatterns
CSS selector tokenizer patterns builder.
This component is a port of the Python cssselect library, which is copyright Ian Bicking, @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
@internal
Hierarchy
- class \Symfony\Component\CssSelector\Parser\Tokenizer\TokenizerPatterns
Expanded class hierarchy of TokenizerPatterns
See also
https://github.com/SimonSapin/cssselect.
4 files declare their use of TokenizerPatterns
- HashHandler.php in vendor/
symfony/ css-selector/ Parser/ Handler/ HashHandler.php - IdentifierHandler.php in vendor/
symfony/ css-selector/ Parser/ Handler/ IdentifierHandler.php - NumberHandler.php in vendor/
symfony/ css-selector/ Parser/ Handler/ NumberHandler.php - StringHandler.php in vendor/
symfony/ css-selector/ Parser/ Handler/ StringHandler.php
File
-
vendor/
symfony/ css-selector/ Parser/ Tokenizer/ TokenizerPatterns.php, line 24
Namespace
Symfony\Component\CssSelector\Parser\TokenizerView source
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';
}
}