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<?php |
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/** |
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* NextFlow (http://github.com/nextflow) |
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* |
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* @link http://github.com/nextflow/nextflow-php for the canonical source repository |
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* @copyright Copyright (c) 2014-2016 NextFlow (http://github.com/nextflow) |
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* @license https://raw.github.com/nextflow/nextflow-php/master/LICENSE MIT |
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*/ |
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namespace NextFlow\Regex\Action; |
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use NextFlow\Core\Action\AbstractAction; |
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/** |
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* A replace action that replaces a string with another string based on a regular expression. |
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*/ |
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final class ReplaceAction extends AbstractAction |
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{ |
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/** The output socket. */ |
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const SOCKET_OUTPUT = 'out'; |
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/** The pattern variable socket. */ |
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const SOCKET_PATTERN = 'pattern'; |
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/** The replacement variable socket. */ |
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const SOCKET_REPLACEMENT = 'replacement'; |
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/** The subject variable socket. */ |
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const SOCKET_SUBJECT = 'subject'; |
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/** The result variable socket. */ |
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const SOCKET_RESULT = 'result'; |
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/** |
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* Initializes a new instance of this class. |
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*/ |
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View Code Duplication |
public function __construct() |
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{ |
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parent::__construct(); |
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$this->createSocket(self::SOCKET_OUTPUT); |
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$this->createSocket(self::SOCKET_PATTERN); |
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$this->createSocket(self::SOCKET_REPLACEMENT); |
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$this->createSocket(self::SOCKET_SUBJECT); |
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$this->createSocket(self::SOCKET_RESULT); |
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} |
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/** |
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* Executes the node's logic. |
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*/ |
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public function execute() |
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{ |
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$pattern = $this->getSocket(self::SOCKET_PATTERN)->getNode(0); |
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if ($pattern === null || $pattern->getValue() === null) { |
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throw new \InvalidArgumentException('No pattern provided.'); |
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} |
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$replacement = $this->getSocket(self::SOCKET_REPLACEMENT)->getNode(0); |
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if ($replacement === null || $replacement->getValue() === null) { |
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throw new \InvalidArgumentException('No replacement provided.'); |
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} |
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$subject = $this->getSocket(self::SOCKET_SUBJECT)->getNode(0); |
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if ($subject === null || $subject->getValue() === null) { |
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throw new \InvalidArgumentException('No subject provided.'); |
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} |
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$resultVar = $this->getSocket(self::SOCKET_RESULT)->getNode(0); |
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if ($resultVar === null) { |
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throw new \InvalidArgumentException('No result variable provided.'); |
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} |
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$value = preg_replace($pattern->getValue(), $replacement->getValue(), $subject->getValue()); |
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$resultVar->setValue($value); |
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$this->activate(self::SOCKET_OUTPUT); |
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} |
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} |
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nextflow /
nextflow-php
