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msd2/tracking/piwik/libs/HTML/QuickForm2/Rule/Regex.php

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+<?php
+/**
+ * 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); }";
+    }
+}
+?>