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<?php |
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declare(strict_types=1); |
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/** |
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* Caridea |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not |
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* use this file except in compliance with the License. You may obtain a copy of |
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* the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
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* License for the specific language governing permissions and limitations under |
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* the License. |
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* |
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* @copyright 2015-2018 LibreWorks contributors |
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* @license Apache-2.0 |
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*/ |
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namespace Caridea\Validate; |
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/** |
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* Parses rule definitions |
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* |
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* @since 3.0.0 |
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*/ |
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class Parser |
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{ |
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/** |
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* @var \Caridea\Validate\Registry $registry |
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*/ |
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private $registry; |
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/** |
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* Creates a new Validation rule registry. |
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* |
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* @param \Caridea\Validate\Registry $registry The registry |
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*/ |
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public function __construct(Registry $registry) |
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{ |
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$this->registry = $registry; |
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} |
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/** |
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* Tests if an array is associative. |
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* |
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* @param array $array The array to test |
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* @return bool Whether the array is associative |
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*/ |
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public function isAssociative(array $array): bool |
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{ |
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return count(array_filter(array_keys($array), 'is_string')) > 0; |
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} |
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/** |
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* Turns a number of rule definitions into an actual Rule Set. |
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* |
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* @param string|object|array $rules The rules to parse |
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* @return \Caridea\Validate\Rule\Set The set of Rules |
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*/ |
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public function parse($rules): Rule\Set |
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{ |
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$isArray = is_array($rules); |
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$isAssoc = $isArray && $this->isAssociative($rules); |
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$set = null; |
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if (is_string($rules) || is_object($rules) || $isAssoc) { |
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$set = $this->getRule($rules); |
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} elseif ($isArray) { |
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foreach ($rules as $v) { |
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$toAdd = $this->getRule($v); |
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$set = $set === null ? $toAdd : $set->merge($toAdd); |
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} |
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} |
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return $set ?? new Rule\Set(); |
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} |
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/** |
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* Parses rule definitions. |
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* |
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* @param string|object|array $rule Either a string name, an associative |
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* array, or an object with name → arguments |
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* @param mixed $arg Optional constructor argument, or an array of arguments |
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* @return \Caridea\Validate\Rule\Set An set of instantiated rules |
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*/ |
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public function getRule($rule, $arg = null): Rule\Set |
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{ |
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$rules = new Rule\Set(); |
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if (is_string($rule)) { |
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$vrule = $this->registry->factory($rule, $arg); |
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if ($vrule instanceof Draft) { |
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$vrule = $vrule->finish($this->registry); |
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} |
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$rules->add($vrule); |
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} elseif (is_object($rule) || is_array($rule)) { |
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foreach ($rule as $name => $args) { |
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$rules->merge($this->getRule($name, $args)); |
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} |
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} |
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return $rules; |
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} |
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} |
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libreworks /
caridea-validate
