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<?php |
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/** |
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* File containing the {@see Mailcode_Traits_Commands_Validation_Variable} trait. |
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* |
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* @package Mailcode |
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* @subpackage Validation |
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* @see Mailcode_Traits_Commands_Validation_Variable |
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*/ |
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declare(strict_types=1); |
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namespace Mailcode; |
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/** |
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* Command validation drop-in: checks for the presence |
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* of a variable name. Will accept the first variable |
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* it finds. |
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* |
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* @package Mailcode |
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* @subpackage Validation |
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* @author Sebastian Mordziol <[email protected]> |
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* |
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* @property Mailcode_Parser_Statement_Validator $validator |
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* |
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* @see Mailcode_Interfaces_Commands_Validation_Variable |
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*/ |
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trait Mailcode_Traits_Commands_Validation_Variable |
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{ |
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/** |
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* @var Mailcode_Parser_Statement_Tokenizer_Token_Variable|NULL |
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*/ |
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protected $variableToken; |
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protected function validateSyntax_variable(): void |
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{ |
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$var = $this->validator->createVariable(); |
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if ($var->isValid()) { |
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$this->variableToken = $var->getToken(); |
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} else { |
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$this->validationResult->makeError( |
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t('No variable has been specified.'), |
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Mailcode_Commands_CommonConstants::VALIDATION_VARIABLE_MISSING |
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); |
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} |
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} |
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protected function validateSyntax_variable_optional(): void |
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{ |
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$var = $this->validator->createVariable(); |
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if ($var->isValid()) { |
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$this->variableToken = $var->getToken(); |
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} |
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} |
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public function getVariableToken(): Mailcode_Parser_Statement_Tokenizer_Token_Variable |
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{ |
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if (isset($this->variableToken)) { |
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return $this->variableToken; |
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} |
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throw new Mailcode_Exception( |
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'No variable token available', |
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null, |
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Mailcode_Commands_CommonConstants::ERROR_NO_VARIABLE_AVAILABLE |
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); |
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} |
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/** |
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* Retrieves the variable being compared. |
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* |
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* @return Mailcode_Variables_Variable |
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* @throws Mailcode_Exception |
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*/ |
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public function getVariable(): Mailcode_Variables_Variable |
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{ |
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if (isset($this->variableToken)) { |
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return $this->variableToken->getVariable(); |
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} |
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throw new Mailcode_Exception( |
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'No variable available', |
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null, |
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Mailcode_Commands_CommonConstants::ERROR_NO_VARIABLE_AVAILABLE |
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); |
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} |
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public function getVariableName(): string |
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{ |
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return $this->getVariable()->getFullName(); |
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} |
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/** |
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* Checks whether the command is nested in a loop (FOR) command. |
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* |
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* @return bool |
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*/ |
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public function isInLoop(): bool |
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{ |
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return $this->getLoopCommand() !== null; |
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} |
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/** |
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* Retrieves the command's parent loop command, if any. |
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* |
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* @return Mailcode_Commands_Command_For|NULL |
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*/ |
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public function getLoopCommand(): ?Mailcode_Commands_Command_For |
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{ |
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return $this->findLoopRecursive($this); |
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} |
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/** |
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* Recursively tries to find a loop command in the command's |
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* parent commands. Goes up the whole ancestry if need be. |
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* |
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* @param Mailcode_Commands_Command $subject |
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* @return Mailcode_Commands_Command_For|null |
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*/ |
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protected function findLoopRecursive(Mailcode_Commands_Command $subject): ?Mailcode_Commands_Command_For |
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{ |
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$parent = $subject->getParent(); |
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if ($parent === null) { |
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return null; |
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} |
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if ($parent instanceof Mailcode_Commands_Command_For) { |
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return $parent; |
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} |
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return $this->findLoopRecursive($parent); |
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} |
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public function hasVariable(): bool |
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{ |
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return isset($this->variableToken); |
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} |
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} |
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