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<?php |
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/** |
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* Author: Nil Portugués Calderó <[email protected]> |
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* Date: 12/23/14 |
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* Time: 1:22 PM. |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace NilPortugues\Sql\QueryFormatter\Tokenizer\Parser; |
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use NilPortugues\Sql\QueryFormatter\Tokenizer\Tokenizer; |
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/** |
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* Class Comment. |
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*/ |
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final class Comment |
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{ |
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/** |
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* @param Tokenizer $tokenizer |
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* @param string $string |
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*/ |
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public static function isComment(Tokenizer $tokenizer, $string) |
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{ |
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if (!$tokenizer->getNextToken() && self::isCommentString($string)) { |
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$tokenizer->setNextToken(self::getCommentString($string)); |
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} |
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} |
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/** |
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* @param string $string |
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* |
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* @return bool |
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*/ |
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protected static function isCommentString($string) |
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{ |
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return !empty($string[0]) && ($string[0] === '#' || self::isTwoCharacterComment($string)); |
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} |
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/** |
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* @param string $string |
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* |
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* @return bool |
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*/ |
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protected static function isTwoCharacterComment($string) |
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{ |
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return !empty($string[1]) && (isset($string[1]) && (self::startsWithDoubleDash($string) || self::startsAsBlock($string))); |
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} |
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/** |
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* @param string $string |
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* |
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* @return bool |
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*/ |
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protected static function startsWithDoubleDash($string) |
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{ |
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return !empty($string[1]) && ($string[0] === '-' && ($string[1] === $string[0])); |
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} |
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/** |
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* @param string $string |
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* |
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* @return bool |
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*/ |
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protected static function startsAsBlock($string) |
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{ |
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return !empty($string[1]) && ($string[0] === '/' && $string[1] === '*'); |
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} |
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/** |
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* @param string $string |
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* |
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* @return array |
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*/ |
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protected static function getCommentString($string) |
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{ |
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$last = \strpos($string, '*/', 2) + 2; |
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$type = Tokenizer::TOKEN_TYPE_BLOCK_COMMENT; |
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if (!empty($string[0]) && ($string[0] === '-' || $string[0] === '#')) { |
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$last = \strpos($string, "\n"); |
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$type = Tokenizer::TOKEN_TYPE_COMMENT; |
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} |
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$last = ($last === false) ? \strlen($string) : $last; |
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return [ |
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Tokenizer::TOKEN_VALUE => \substr($string, 0, $last), |
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Tokenizer::TOKEN_TYPE => $type, |
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]; |
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} |
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} |
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nilportugues /
sql-query-formatter
