Mercurial > hg > isophonics-drupal-site
diff vendor/symfony/validator/Constraints/Regex.php @ 0:4c8ae668cc8c
Initial import (non-working)
author | Chris Cannam |
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date | Wed, 29 Nov 2017 16:09:58 +0000 |
parents | |
children | 129ea1e6d783 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/vendor/symfony/validator/Constraints/Regex.php Wed Nov 29 16:09:58 2017 +0000 @@ -0,0 +1,102 @@ +<?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\Validator\Constraints; + +use Symfony\Component\Validator\Constraint; + +/** + * @Annotation + * @Target({"PROPERTY", "METHOD", "ANNOTATION"}) + * + * @author Bernhard Schussek <bschussek@gmail.com> + */ +class Regex extends Constraint +{ + const REGEX_FAILED_ERROR = 'de1e3db3-5ed4-4941-aae4-59f3667cc3a3'; + + protected static $errorNames = array( + self::REGEX_FAILED_ERROR => 'REGEX_FAILED_ERROR', + ); + + public $message = 'This value is not valid.'; + public $pattern; + public $htmlPattern; + public $match = true; + + /** + * {@inheritdoc} + */ + public function getDefaultOption() + { + return 'pattern'; + } + + /** + * {@inheritdoc} + */ + public function getRequiredOptions() + { + return array('pattern'); + } + + /** + * Converts the htmlPattern to a suitable format for HTML5 pattern. + * Example: /^[a-z]+$/ would be converted to [a-z]+ + * However, if options are specified, it cannot be converted. + * + * Pattern is also ignored if match=false since the pattern should + * then be reversed before application. + * + * @see http://dev.w3.org/html5/spec/single-page.html#the-pattern-attribute + * + * @return string|null + */ + public function getHtmlPattern() + { + // If htmlPattern is specified, use it + if (null !== $this->htmlPattern) { + return empty($this->htmlPattern) + ? null + : $this->htmlPattern; + } + + // Quit if delimiters not at very beginning/end (e.g. when options are passed) + if ($this->pattern[0] !== $this->pattern[strlen($this->pattern) - 1]) { + return; + } + + $delimiter = $this->pattern[0]; + + // Unescape the delimiter + $pattern = str_replace('\\'.$delimiter, $delimiter, substr($this->pattern, 1, -1)); + + // If the pattern is inverted, we can simply wrap it in + // ((?!pattern).)* + if (!$this->match) { + return '((?!'.$pattern.').)*'; + } + + // If the pattern contains an or statement, wrap the pattern in + // .*(pattern).* and quit. Otherwise we'd need to parse the pattern + if (false !== strpos($pattern, '|')) { + return '.*('.$pattern.').*'; + } + + // Trim leading ^, otherwise prepend .* + $pattern = '^' === $pattern[0] ? substr($pattern, 1) : '.*'.$pattern; + + // Trim trailing $, otherwise append .* + $pattern = '$' === $pattern[strlen($pattern) - 1] ? substr($pattern, 0, -1) : $pattern.'.*'; + + return $pattern; + } +}