annotate vendor/symfony/css-selector/Parser/Tokenizer/TokenizerPatterns.php @ 19:fa3358dc1485 tip

Add ndrum files
author Chris Cannam
date Wed, 28 Aug 2019 13:14:47 +0100
parents 1fec387a4317
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Chris@0 1 <?php
Chris@0 2
Chris@0 3 /*
Chris@0 4 * This file is part of the Symfony package.
Chris@0 5 *
Chris@0 6 * (c) Fabien Potencier <fabien@symfony.com>
Chris@0 7 *
Chris@0 8 * For the full copyright and license information, please view the LICENSE
Chris@0 9 * file that was distributed with this source code.
Chris@0 10 */
Chris@0 11
Chris@0 12 namespace Symfony\Component\CssSelector\Parser\Tokenizer;
Chris@0 13
Chris@0 14 /**
Chris@0 15 * CSS selector tokenizer patterns builder.
Chris@0 16 *
Chris@0 17 * This component is a port of the Python cssselect library,
Chris@0 18 * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
Chris@0 19 *
Chris@0 20 * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
Chris@0 21 *
Chris@0 22 * @internal
Chris@0 23 */
Chris@0 24 class TokenizerPatterns
Chris@0 25 {
Chris@0 26 private $unicodeEscapePattern;
Chris@0 27 private $simpleEscapePattern;
Chris@0 28 private $newLineEscapePattern;
Chris@0 29 private $escapePattern;
Chris@0 30 private $stringEscapePattern;
Chris@0 31 private $nonAsciiPattern;
Chris@0 32 private $nmCharPattern;
Chris@0 33 private $nmStartPattern;
Chris@0 34 private $identifierPattern;
Chris@0 35 private $hashPattern;
Chris@0 36 private $numberPattern;
Chris@0 37 private $quotedStringPattern;
Chris@0 38
Chris@0 39 public function __construct()
Chris@0 40 {
Chris@0 41 $this->unicodeEscapePattern = '\\\\([0-9a-f]{1,6})(?:\r\n|[ \n\r\t\f])?';
Chris@0 42 $this->simpleEscapePattern = '\\\\(.)';
Chris@0 43 $this->newLineEscapePattern = '\\\\(?:\n|\r\n|\r|\f)';
Chris@0 44 $this->escapePattern = $this->unicodeEscapePattern.'|\\\\[^\n\r\f0-9a-f]';
Chris@0 45 $this->stringEscapePattern = $this->newLineEscapePattern.'|'.$this->escapePattern;
Chris@0 46 $this->nonAsciiPattern = '[^\x00-\x7F]';
Chris@0 47 $this->nmCharPattern = '[_a-z0-9-]|'.$this->escapePattern.'|'.$this->nonAsciiPattern;
Chris@0 48 $this->nmStartPattern = '[_a-z]|'.$this->escapePattern.'|'.$this->nonAsciiPattern;
Chris@14 49 $this->identifierPattern = '-?(?:'.$this->nmStartPattern.')(?:'.$this->nmCharPattern.')*';
Chris@0 50 $this->hashPattern = '#((?:'.$this->nmCharPattern.')+)';
Chris@0 51 $this->numberPattern = '[+-]?(?:[0-9]*\.[0-9]+|[0-9]+)';
Chris@0 52 $this->quotedStringPattern = '([^\n\r\f%s]|'.$this->stringEscapePattern.')*';
Chris@0 53 }
Chris@0 54
Chris@0 55 /**
Chris@0 56 * @return string
Chris@0 57 */
Chris@0 58 public function getNewLineEscapePattern()
Chris@0 59 {
Chris@0 60 return '~^'.$this->newLineEscapePattern.'~';
Chris@0 61 }
Chris@0 62
Chris@0 63 /**
Chris@0 64 * @return string
Chris@0 65 */
Chris@0 66 public function getSimpleEscapePattern()
Chris@0 67 {
Chris@0 68 return '~^'.$this->simpleEscapePattern.'~';
Chris@0 69 }
Chris@0 70
Chris@0 71 /**
Chris@0 72 * @return string
Chris@0 73 */
Chris@0 74 public function getUnicodeEscapePattern()
Chris@0 75 {
Chris@0 76 return '~^'.$this->unicodeEscapePattern.'~i';
Chris@0 77 }
Chris@0 78
Chris@0 79 /**
Chris@0 80 * @return string
Chris@0 81 */
Chris@0 82 public function getIdentifierPattern()
Chris@0 83 {
Chris@0 84 return '~^'.$this->identifierPattern.'~i';
Chris@0 85 }
Chris@0 86
Chris@0 87 /**
Chris@0 88 * @return string
Chris@0 89 */
Chris@0 90 public function getHashPattern()
Chris@0 91 {
Chris@0 92 return '~^'.$this->hashPattern.'~i';
Chris@0 93 }
Chris@0 94
Chris@0 95 /**
Chris@0 96 * @return string
Chris@0 97 */
Chris@0 98 public function getNumberPattern()
Chris@0 99 {
Chris@0 100 return '~^'.$this->numberPattern.'~';
Chris@0 101 }
Chris@0 102
Chris@0 103 /**
Chris@0 104 * @param string $quote
Chris@0 105 *
Chris@0 106 * @return string
Chris@0 107 */
Chris@0 108 public function getQuotedStringPattern($quote)
Chris@0 109 {
Chris@0 110 return '~^'.sprintf($this->quotedStringPattern, $quote).'~i';
Chris@0 111 }
Chris@0 112 }