WordPress at a glance
class is not described

Symfony\Component\CssSelector\Parser\Tokenizer

TokenizerPatterns{} WC 1.0

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.

No Hooks.

Return

null. Nothing.

Usage

$TokenizerPatterns = new TokenizerPatterns();
// use class methods

Methods

  1. __construct()
  2. getHashPattern()
  3. getIdentifierPattern()
  4. getNewLineEscapePattern()
  5. getNumberPattern()
  6. getQuotedStringPattern($quote)
  7. getSimpleEscapePattern()
  8. getUnicodeEscapePattern()

Code of TokenizerPatterns{} WC 5.3.0

<?php
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';
    }
}