[Sommaire] [Imprimer]

   1  <?php
   2  /*
   3   *  $Id: Character.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  /**
  23   * @package phing.system.lang
  24   */
  25  class Character {
  26  
  27      // this class might be extended with plenty of ordinal char constants
  28      // and the like to support the multibyte aware datatype (char) in php
  29      // in form of an object.
  30      // anyway just a thought
  31  
  32      public static function isLetter($char) {
  33  
  34          if (strlen($char) !== 1)
  35              $char = 0;
  36  
  37          $char = (int) ord($char);
  38  
  39          if ($char >= ord('A') && $char <= ord('Z'))
  40              return true;
  41  
  42          if ($char >= ord('a') && $char <= ord('z'))
  43              return true;
  44  
  45          return false;
  46      }
  47  
  48  }
  49  ?>