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<?php |
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/* |
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* Copyright (C) 2017 |
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* Nathan Boiron <[email protected]> |
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* Romain Canon <[email protected]> |
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* |
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* This file is part of the TYPO3 NotiZ project. |
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* It is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License, either |
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* version 3 of the License, or any later version. |
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* |
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* For the full copyright and license information, see: |
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* http://www.gnu.org/licenses/gpl-3.0.html |
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*/ |
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namespace CuyZ\Notiz\Property\Service; |
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use CuyZ\Notiz\Domain\Property\Marker; |
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use TYPO3\CMS\Extbase\Reflection\ObjectAccess; |
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/** |
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* Helper class to parse markers and replace them in a given string. |
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*/ |
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class MarkerParser |
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{ |
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/** |
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* @param string $string |
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* @param Marker[] $markers |
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* @return string |
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*/ |
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public function replaceMarkers($string, array $markers) |
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{ |
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if (empty($markers)) { |
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return $string; |
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} |
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$markers = $this->keyMarkersByName($markers); |
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list($identifiers, $variables, $roots) = $this->matchMarkers($string); |
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if (empty($identifiers)) { |
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return $string; |
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} |
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$replacePairs = []; |
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foreach ($variables as $index => $variable) { |
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$identifier = $identifiers[$index]; |
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$root = $roots[$index]; |
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$marker = $markers[$root]; |
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$value = $this->getVariableValue($variable, $root, $marker); |
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$replacePairs[$identifier] = $value; |
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} |
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return strtr($string, $replacePairs); |
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} |
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/** |
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* This will set each marker's name as the array key |
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* |
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* @param array $markers |
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* @return array |
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*/ |
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private function keyMarkersByName(array $markers) |
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{ |
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$aux = []; |
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// This will avoid looping on markers for each variable |
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foreach ($markers as $marker) { |
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$aux[$marker->getName()] = $marker; |
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} |
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return $aux; |
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} |
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/** |
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* This method will find all markers in the string |
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* |
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* @param $string |
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* @return array |
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*/ |
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private function matchMarkers($string) |
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{ |
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preg_match_all( |
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'/{ |
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( |
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([a-z]+[a-z0-1]*) # The root variable |
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(?:\.[a-z]+[a-z0-1]*)* # The other parts |
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) |
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}/xi', |
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$string, |
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$matches |
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); |
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return $matches; |
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} |
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/** |
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* @param string $variable |
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* @param string $root |
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* @param Marker $marker |
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* @return mixed |
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*/ |
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protected function getVariableValue($variable, $root, Marker $marker) |
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{ |
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// We need to have the root name to allow the ObjectAccess class to |
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// retrieve the value. |
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$target = [ |
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$root => $marker->getValue(), |
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]; |
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return ObjectAccess::getPropertyPath($target, $variable); |
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} |
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} |
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CuyZ /
NotiZ
