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<?php
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/*
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* $Id: IsFalseCondition.php 43 2006-03-10 14:31:51Z mrook $
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information please see
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* <http://phing.info>.
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*/
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require_once 'phing/ProjectComponent.php';
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require_once 'phing/tasks/system/condition/Condition.php';
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/**
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* Condition that tests whether a given string evals to false.
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*
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* @author Hans Lellelid (Phing)
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* @author Steve Loughran (Ant)
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* @version $Revision: 1.4 $
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* @package phing.tasks.system.condition
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*/
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class IsFalseCondition extends ProjectComponent implements Condition {
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/**
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* what we eval
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*/
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private $value;
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/**
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* Set the value to be tested.
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* @param boolean $value
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*/
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public function setValue($value) {
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$this->value = $value;
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}
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/**
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* return the inverted value;
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* @throws BuildException if someone forgot to spec a value
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*/
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public function evaluate() {
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if ($this->value === null) {
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throw new BuildException("Nothing to test for falsehood");
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}
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return !$this->value;
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}
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}
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