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<?php
namespace {
/**
* Validates values using regular expressions
*
* PHP version 5
*
* LICENSE:
*
* Copyright (c) 2006-2010, Alexey Borzov <avb@php.net>,
* Bertrand Mansion <golgote@mamasam.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * The names of the authors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @category HTML
* @package HTML_QuickForm2
* @author Alexey Borzov <avb@php.net>
* @author Bertrand Mansion <golgote@mamasam.com>
* @license http://opensource.org/licenses/bsd-license.php New BSD License
* @version SVN: $Id: Regex.php 299480 2010-05-19 06:55:03Z avb $
* @link http://pear.php.net/package/HTML_QuickForm2
*/
/**
* Base class for HTML_QuickForm2 rules
*/
// require_once 'HTML/QuickForm2/Rule.php';
/**
* Validates values using regular expressions
*
* The Rule needs one configuration parameter for its work: a Perl-compatible
* regular expression. This parameter can be passed either to
* {@link HTML_QuickForm2_Rule::__construct() the Rule constructor} as local
* configuration or to {@link HTML_QuickForm2_Factory::registerRule()}
* as global one. As usual, global configuration overrides local one.
*
* The Rule can also validate file uploads, in this case the regular expression
* is applied to upload's 'name' field.
*
* The Rule considers empty fields (file upload fields with UPLOAD_ERR_NO_FILE)
* as valid and doesn't try to test them with the regular expression.
*
* @category HTML
* @package HTML_QuickForm2
* @author Alexey Borzov <avb@php.net>
* @author Bertrand Mansion <golgote@mamasam.com>
* @version Release: @package_version@
*/
class HTML_QuickForm2_Rule_Regex extends \HTML_QuickForm2_Rule
{
/**
* Validates the owner element
*
* @return bool whether element's value matches given regular expression
*/
protected function validateOwner()
{
$value = $this->owner->getValue();
if ($this->owner instanceof \HTML_QuickForm2_Element_InputFile) {
if (!isset($value['error']) || \UPLOAD_ERR_NO_FILE == $value['error']) {
return \true;
}
$value = $value['name'];
} elseif (!\strlen($value)) {
return \true;
}
return \preg_match($this->getConfig() . 'D', $value);
}
/**
* Sets the regular expression to validate with
*
* @param string Regular expression
* @return HTML_QuickForm2_Rule
* @throws HTML_QuickForm2_InvalidArgumentException if $config is not a string
*/
public function setConfig($config)
{
if (!\is_string($config)) {
throw new \HTML_QuickForm2_InvalidArgumentException('Regex Rule requires a regular expression, ' . \preg_replace('/\\s+/', ' ', \var_export($config, \true)) . ' given');
}
return parent::setConfig($config);
}
/**
* Returns the client-side validation callback
*
* For this to work properly, slashes have to be used as regex delimiters.
* The method takes care of transforming PHP unicode escapes in regexps to
* JS unicode escapes if using 'u' modifier (see bug #12376)
*
* @return string
*/
protected function getJavascriptCallback()
{
$regex = $this->getConfig();
if ($pos = \strpos($regex, 'u', \strrpos($regex, '/'))) {
$regex = \substr($regex, 0, $pos) . \substr($regex, $pos + 1);
$regex = \preg_replace('/(?<!\\\\)(?>\\\\\\\\)*\\\\x{([a-fA-F0-9]+)}/', '\\u$1', $regex);
}
return "function() { var regex = {$regex}; var value = " . $this->owner->getJavascriptValue() . "; return value == '' || regex.test(value); }";
}
}
}