103 lines
2.8 KiB
PHP
103 lines
2.8 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator\Constraints;
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use Symfony\Component\Validator\Constraint;
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/**
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* @Annotation
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* @Target({"PROPERTY", "METHOD", "ANNOTATION"})
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*
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* @author Bernhard Schussek <bschussek@gmail.com>
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*/
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class Regex extends Constraint
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{
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const REGEX_FAILED_ERROR = 'de1e3db3-5ed4-4941-aae4-59f3667cc3a3';
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protected static $errorNames = array(
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self::REGEX_FAILED_ERROR => 'REGEX_FAILED_ERROR',
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);
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public $message = 'This value is not valid.';
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public $pattern;
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public $htmlPattern;
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public $match = true;
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/**
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* {@inheritdoc}
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*/
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public function getDefaultOption()
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{
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return 'pattern';
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}
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/**
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* {@inheritdoc}
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*/
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public function getRequiredOptions()
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{
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return array('pattern');
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}
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/**
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* Converts the htmlPattern to a suitable format for HTML5 pattern.
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* Example: /^[a-z]+$/ would be converted to [a-z]+
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* However, if options are specified, it cannot be converted.
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*
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* Pattern is also ignored if match=false since the pattern should
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* then be reversed before application.
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*
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* @see http://dev.w3.org/html5/spec/single-page.html#the-pattern-attribute
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*
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* @return string|null
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*/
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public function getHtmlPattern()
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{
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// If htmlPattern is specified, use it
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if (null !== $this->htmlPattern) {
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return empty($this->htmlPattern)
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? null
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: $this->htmlPattern;
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}
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// Quit if delimiters not at very beginning/end (e.g. when options are passed)
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if ($this->pattern[0] !== $this->pattern[\strlen($this->pattern) - 1]) {
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return;
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}
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$delimiter = $this->pattern[0];
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// Unescape the delimiter
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$pattern = str_replace('\\'.$delimiter, $delimiter, substr($this->pattern, 1, -1));
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// If the pattern is inverted, we can simply wrap it in
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// ((?!pattern).)*
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if (!$this->match) {
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return '((?!'.$pattern.').)*';
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}
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// If the pattern contains an or statement, wrap the pattern in
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// .*(pattern).* and quit. Otherwise we'd need to parse the pattern
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if (false !== strpos($pattern, '|')) {
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return '.*('.$pattern.').*';
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}
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// Trim leading ^, otherwise prepend .*
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$pattern = '^' === $pattern[0] ? substr($pattern, 1) : '.*'.$pattern;
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// Trim trailing $, otherwise append .*
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$pattern = '$' === $pattern[\strlen($pattern) - 1] ? substr($pattern, 0, -1) : $pattern.'.*';
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return $pattern;
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}
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}
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