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   1  <?php
   2  /*
   3   *  $Id: EqualsCondition.php 3076 2006-12-18 08:52:12Z fabien $
   4   *
   5   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   6   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   7   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   8   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   9   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  10   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  11   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  12   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  13   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  14   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  15   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  16   *
  17   * This software consists of voluntary contributions made by many individuals
  18   * and is licensed under the LGPL. For more information please see
  19   * <http://phing.info>.
  20   */
  21  
  22  require_once 'phing/tasks/system/condition/Condition.php';
  23  
  24  /**
  25   *  A simple string comparator.  Compares two strings for eqiality in a
  26   *  binary safe manner. Implements the condition interface specification.
  27   *
  28   *  @author    Andreas Aderhold <andi@binarycloud.com>
  29   *  @copyright © 2001,2002 THYRELL. All rights reserved
  30   *  @version   $Revision: 1.7 $ $Date: 2006-04-28 16:49:47 +0200 (Fri, 28 Apr 2006) $
  31   *  @access    public
  32   *  @package   phing.tasks.system.condition
  33   */
  34  class EqualsCondition implements Condition {
  35  
  36      private $arg1;
  37      private $arg2;
  38      private $trim = false;
  39      private $caseSensitive = true;
  40      
  41      public function setArg1($a1) {
  42          $this->arg1 = $a1;
  43      }
  44  
  45      public function setArg2($a2) {
  46          $this->arg2 = $a2;
  47      }
  48  
  49      /**
  50       * Should we want to trim the arguments before comparing them?
  51       * @param boolean $b
  52       */
  53      public function setTrim($b) {
  54          $this->trim = (boolean) $b;
  55      }
  56  
  57      /**
  58       * Should the comparison be case sensitive?
  59       * @param boolean $b
  60       */
  61      public function setCaseSensitive($b) {
  62          $this->caseSensitive = (boolean) $b;
  63      } 
  64      
  65      public function evaluate() {
  66          if ($this->arg1 === null || $this->arg2 === null) {
  67              throw new BuildException("Both arg1 and arg2 are required in equals.");
  68          }
  69          
  70          if ($this->trim) {
  71              $this->arg1 = trim($this->arg1);
  72              $this->arg2 = trim($this->arg2);
  73          }
  74          
  75          //print("[comparison] Comparing '".$this->arg1."' and '".$this->arg2."'\n");
  76          return $this->caseSensitive ? $this->arg1 === $this->arg2 : strtolower($this->arg1) === strtolower($this->arg2);
  77      }
  78  }