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<?php |
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/** |
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* Copyright © Vaimo Group. All rights reserved. |
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* See LICENSE_VAIMO.txt for license details. |
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*/ |
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namespace Vaimo\ComposerPatches\Utils; |
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class FilterUtils |
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{ |
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const AFFIRMATION = 0; |
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const NEGATION = 1; |
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const NEGATION_PREFIX = '!'; |
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public function composeRegex(array $filters, $delimiter) |
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{ |
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$semanticGroups = array_fill_keys(array(0, 1), array()); |
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$escapeChar = chr('27'); |
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$that = $this; |
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array_map(function ($filter) use (&$semanticGroups, $delimiter, $escapeChar, $that) { |
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$escapedFilter = trim( |
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str_replace( |
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$escapeChar, |
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'.*', |
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preg_quote( |
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str_replace('*', $escapeChar, ltrim($filter, FilterUtils::NEGATION_PREFIX)), |
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$delimiter |
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) |
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) |
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); |
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if (!$escapedFilter) { |
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return; |
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} |
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$semanticGroups[(int)$that->isInvertedFilter($filter)][] = $escapedFilter; |
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}, $filters); |
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$pattern = '%s'; |
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if ($semanticGroups[self::NEGATION]) { |
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$pattern = sprintf( |
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'^((?!.*(%s)).*%s)', |
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implode('|', $semanticGroups[self::NEGATION]), |
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$semanticGroups[self::AFFIRMATION] ? '(%s)' : '' |
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); |
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} |
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return $delimiter . |
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sprintf($pattern, implode('|', $semanticGroups[self::AFFIRMATION])) . |
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$delimiter; |
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} |
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public function invertRules(array $filters) |
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{ |
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$that = $this; |
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return array_map(function ($filter) use ($that) { |
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return (!$that->isInvertedFilter($filter) ? FilterUtils::NEGATION_PREFIX : '') . |
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ltrim($filter, FilterUtils::NEGATION_PREFIX); |
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}, $filters); |
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} |
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public function isInvertedFilter($filter) |
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{ |
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return strpos($filter, FilterUtils::NEGATION_PREFIX) === 0; |
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} |
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public function trimRules(array $filters) |
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{ |
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return array_map(function ($filter) { |
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return ltrim($filter, FilterUtils::NEGATION_PREFIX); |
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}, $filters); |
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} |
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} |
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vaimo /
composer-patches
