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<?php |
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/** |
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* This file is a part of "Axessors" library. |
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* |
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* @author <[email protected]> |
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* @license GPL |
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*/ |
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namespace NoOne4rever\Axessors; |
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/** |
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* Class CommentLexer. |
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* |
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* Splits Axessors comment into array of possible tokens. |
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* |
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* @package NoOne4rever\Axessors |
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*/ |
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class CommentLexer extends Lexer |
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{ |
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private const AXS_COMMENT = '{^#>}'; |
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private const ACCESS_MODIFIER = '{^(\+|~|-)}'; |
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private const KEYWORD = '{^((accessi|(writ|read)a)ble|axs|wrt|rdb)}'; |
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private const TYPE = '{^((((\\\\)?[a-zA-Z_][a-zA-Z\d_]*(\\\\[a-zA-Z_][a-zA-Z\d_]*)*)(\[(?1)\])?)(\|(?2))*)}'; |
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private const HANDLERS = '{^((?(1),\s*)([a-zA-Z_][a-zA-Z0-9_]*|`([^`]|\\\\`)+((?<!\\\\)`)))+}'; |
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private const CONDITIONS = '{^((?(1)\s*(&&|\|\|)\s*)(\d+(,\d+)?\.\.\d+(,\d+)?|((<|>|!|=)=|%|<|>)\s+\d+(,\d+)?|`([^`]|\\\\`)+((?<!\\\\)`)))+}'; |
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private const HANDLERS_SIGN = '{^>>}'; |
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private const ALIAS_SIGN = '{^=>}'; |
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private const ALIAS = '{^[a-zA-Z_][a-zA-Z0-9_]*}'; |
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private const TOKEN_LIST = [ |
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self::AXS_COMMENT, |
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self::ACCESS_MODIFIER, |
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self::KEYWORD, |
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self::TYPE, |
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self::CONDITIONS, |
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self::HANDLERS_SIGN, |
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self::HANDLERS, |
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self::ACCESS_MODIFIER, |
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self::KEYWORD, |
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self::CONDITIONS, |
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self::HANDLERS_SIGN, |
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self::HANDLERS, |
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self::ALIAS_SIGN, |
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self::ALIAS |
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]; |
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private const REQUIRED_TOKENS = [0, 1, 2]; |
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private const AXS_COMMENT_TOKEN = '#>'; |
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/** |
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* Returns class' data with Axessors properties. |
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* |
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* @return ClassData class' data |
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*/ |
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public function getClassData(): ClassData |
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{ |
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$classData = new ClassData($this->reflection); |
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for ($i = $this->startLine; $this->isLineEmpty() && $i <= $this->endLine; ++$i) { |
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$this->readLine(); |
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if (!$this->isAxsPropertyDef()) { |
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continue; |
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} |
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$code = $this->addSlashes($this->getAxsComment()); |
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$propertyData = new PropertyData( |
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$this->reflection->getProperty($this->getPropertyName()), |
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$this->parse( |
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$code, |
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self::TOKEN_LIST, |
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self::REQUIRED_TOKENS |
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) |
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); |
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$classData->addProperty($this->getPropertyName(), $propertyData); |
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} |
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return $classData; |
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} |
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/** |
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* Adds slashes to special symbols in the *injected* string. |
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* |
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* @param string $expr expression to handle |
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* @return string processed string |
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*/ |
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private function addSlashes(string $expr): string |
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{ |
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return preg_replace_callback( |
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'/`([^`]|\\\\`)+((?<!\\\\)`)/', |
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function (array $matches): string { |
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return addcslashes($matches[0], '\\'); |
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}, |
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$expr |
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); |
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} |
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/** |
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* Extracts Axessors comment from the code. |
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* |
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* @return string Axessors comment |
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*/ |
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private function getAxsComment(): string |
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{ |
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return substr($this->currentLine, strpos($this->currentLine, self::AXS_COMMENT_TOKEN)); |
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} |
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/** |
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* Extracts property name from the code. |
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* |
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* @return string property name |
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*/ |
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private function getPropertyName(): string |
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{ |
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preg_match('{\$[a-zA-Z_][a-zA-Z0-9_]*}', $this->currentLine, $property); |
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return substr($property[0], 1); |
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} |
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/** |
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* Checks if the code given is Axessors property definition. |
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* |
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* @return bool result of the checkout |
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*/ |
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private function isAxsPropertyDef(): bool |
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{ |
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return (bool)preg_match('{^\s*(public|private|protected)\s+(static\s+)?\$[a-zA-Z_][a-zA-Z0-9_]*.*?;\s+#>}', |
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$this->currentLine); |
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} |
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} |
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NoOne4rever /
Axessors
