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Transphporm\TSSValidator
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Code
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<?php/* @description Transformation Style Sheets - Revolutionising PHP templating ** @author Tom Butler tom@r.je ** @copyright 2017 Tom Butler <tom@r.je> | https://r.je/ ** @license http://www.opensource.org/licenses/bsd-license.php BSD License ** @version 1.2 */namespace Transphporm;use Transphporm\Parser\Tokenizer;class TSSValidator {private $error;public function validate($tss) {$this->error = null;$tokens = $this->tokenize($tss);foreach ($tokens as $token)if (!$this->validateRule($token)) return false;return true;}private function validateRule($token) {if ($token['type'] !== Tokenizer::OPEN_BRACE) return true;return $this->checkBraces($token) && $this->checkSemicolons($token)&& $this->checkParenthesis($token);}private function checkBraces($token) {return strpos($token['string'], '{') === false;}private function checkSemicolons($braceToken) {$splitTokens = $braceToken['value']->splitOnToken(Tokenizer::COLON);array_shift($splitTokens); array_pop($splitTokens);foreach ($splitTokens as $tokens)if (!in_array(Tokenizer::SEMI_COLON, array_column(iterator_to_array($tokens), 'type'))) return false;return true;}private function checkParenthesis($token) {return substr_count($token['string'], '(') === substr_count($token['string'], ')');}private function tokenize($tss) {if (is_file($tss)) $tss = file_get_contents($tss);return (new Parser\Tokenizer($tss))->getTokens();}}