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<?php |
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/*************************************************************************************/ |
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/* This file is part of the Thelia package. */ |
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/* */ |
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/* Copyright (c) OpenStudio */ |
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/* email : [email protected] */ |
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/* web : http://www.thelia.net */ |
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/* */ |
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/* For the full copyright and license information, please view the LICENSE.txt */ |
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/* file that was distributed with this source code. */ |
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/*************************************************************************************/ |
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namespace Thelia\Type; |
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/** |
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* This class manages boolea expression, in the form: |
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* number:expr, number:expr, ... |
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* expr: string|(expr oper expr) |
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* oper: | or & |
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* Special characters , : ( ) & | should be escaped in strings, for example a\(b\). |
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* |
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* Sample expression : 1: foo & bar | (fooo &baar), 4: *, 67: (foooo & baaar), 11:(abc & def\&ghi\|ttt) |
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* |
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* @author Etienne Roudeix <[email protected]>, Franck Allimant <[email protected]> |
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*/ |
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class IntToCombinedStringsListType extends BaseType |
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{ |
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public function getType() |
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{ |
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return 'Int to combined strings list type'; |
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} |
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public function isValid($values) |
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{ |
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// Explode expession parts, ignoring escaped characters, (\, and \:) |
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foreach (preg_split('#(?<!\\\),#', $values) as $intToCombinedStrings) { |
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$parts = preg_split('#(?<!\\\):#', $intToCombinedStrings); |
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if (count($parts) != 2) { |
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return false; |
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} |
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if (filter_var($parts[0], FILTER_VALIDATE_INT) === false) { |
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return false; |
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} |
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if (false === $this->checkLogicalFormat($parts[1])) { |
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return false; |
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} |
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} |
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return true; |
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} |
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public function getFormattedValue($values) |
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{ |
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if ($this->isValid($values)) { |
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$return = []; |
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foreach (preg_split('/(?<!\\\),/', $values) as $intToCombinedStrings) { |
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$parts = preg_split('/(?<!\\\):/', $intToCombinedStrings); |
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$return[trim($parts[0])] = array( |
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"values" => array_map( |
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function ($item) { |
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return trim(self::unescape($item)); |
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}, |
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preg_split( |
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'#(?<!\\\)[&|]#', |
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preg_replace( |
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'#(?<!\\\)[\(\)]#', |
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'', |
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$parts[1] |
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) |
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) |
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), |
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"expression" => trim(self::unescape($parts[1])), |
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); |
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} |
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return $return; |
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} else { |
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return null; |
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} |
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} |
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/** |
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* Escape a string to use it safely in an expression. abc:def => abc\:def. |
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* Escapes characters are , : ( ) | & |
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* |
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* @param $string |
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* @return string |
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*/ |
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public static function escape($string) |
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{ |
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return preg_replace('/([,\:\(\)\|\&])/', '\\\$1', $string); |
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} |
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/** |
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* Unescape a string and remove avai escape symbols. abc\:def => abc:def. |
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* |
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* @param $string |
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* @return string |
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*/ |
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public static function unescape($string) |
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{ |
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return preg_replace('/\\\([,\:\(\)\|\&])/', '\1', $string); |
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} |
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protected function checkLogicalFormat($string) |
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{ |
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// Delete escaped characters |
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$string = preg_replace('/\\\[,\:\(\)\|\&]/', '', $string); |
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/* delete all spaces and parentheses */ |
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$noSpaceString = preg_replace('#[\s]#', '', $string); |
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$noParentheseString = preg_replace('#[\(\)]#', '', $noSpaceString); |
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if (!preg_match('#^([a-zA-Z0-9_\-]+([\&\|][a-zA-Z0-9_\-]+)*|\*)$#', $noParentheseString)) { |
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return false; |
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} |
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/* check parenteses use */ |
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$openingParenthesesCount = 0; |
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$closingParenthesesCount = 0; |
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$length = strlen($noSpaceString); |
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for ($i=0; $i< $length; $i++) { |
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$char = $noSpaceString[$i]; |
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if ($char == '(') { |
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/* must be : |
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* - after a &| or () or at the begining of expression |
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* - before a number or () |
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* must not be : |
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* - at the end of expression |
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*/ |
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if (($i!=0 && !preg_match('#[\(\)\&\|]#', $noSpaceString[$i-1])) || !isset($noSpaceString[$i+1]) || !preg_match('#[\(\)a-zA-Z0-9_\-]#', $noSpaceString[$i+1])) { |
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return false; |
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} |
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$openingParenthesesCount++; |
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} elseif ($char == ')') { |
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/* must be : |
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* - after a number or () |
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* - before a &| or () or at the end of expression |
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* must not be : |
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* - at the begining of expression |
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* - if no ( remain unclose |
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*/ |
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if ($i == 0 || !preg_match('#[\(\)a-zA-Z0-9_\-]#', $noSpaceString[$i-1]) || (isset($noSpaceString[$i+1]) && !preg_match('#[\(\)\&\|]#', $noSpaceString[$i+1])) || $openingParenthesesCount-$closingParenthesesCount==0) { |
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return false; |
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} |
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$closingParenthesesCount++; |
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} |
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} |
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if ($openingParenthesesCount != $closingParenthesesCount) { |
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return false; |
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} |
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return true; |
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} |
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public function getFormType() |
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{ |
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return 'text'; |
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} |
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public function getFormOptions() |
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{ |
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return array(); |
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} |
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} |
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