HexBinary.php in Zircon Profile 8

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vendor/easyrdf/easyrdf/lib/EasyRdf/Literal/HexBinary.php

<?php

/**
 * EasyRdf
 *
 * LICENSE
 *
 * Copyright (c) 2009-2013 Nicholas J Humfrey.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. The name of the author 'Nicholas J Humfrey" may be used to endorse or
 *    promote products derived from this software without specific prior
 *    written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @package    EasyRdf
 * @copyright  Copyright (c) 2009-2013 Nicholas J Humfrey
 * @license    http://www.opensource.org/licenses/bsd-license.php
 */

/**
 * Class that represents an RDF Literal of datatype xsd:hexBinary
 *
 * @package    EasyRdf
 * @link       http://www.w3.org/TR/xmlschema-2/#hexBinary
 * @copyright  Copyright (c) 2009-2013 Nicholas J Humfrey
 * @license    http://www.opensource.org/licenses/bsd-license.php
 */
class EasyRdf_Literal_HexBinary extends EasyRdf_Literal {

  /** Constructor for creating a new xsd:hexBinary literal
   *
   * @param  mixed  $value     The value of the literal (already encoded as hexadecimal)
   * @param  string $lang      Should be null (literals with a datatype can't have a language)
   * @param  string $datatype  Optional datatype (default 'xsd:hexBinary')
   * @return object EasyRdf_Literal_HexBinary
   */
  public function __construct($value, $lang = null, $datatype = null) {

    // Normalise the canonical representation, as specified here:
    // http://www.w3.org/TR/xmlschema-2/#hexBinary-canonical-repr
    $value = strtoupper($value);

    // Validate the data
    if (preg_match('/[^A-F0-9]/', $value)) {
      throw new InvalidArgumentException("Literal of type xsd:hexBinary contains non-hexadecimal characters");
    }
    parent::__construct(strtoupper($value), null, 'xsd:hexBinary');
  }

  /** Constructor for creating a new literal object from a binary blob
   *
   * @param  string $binary  The binary data
   * @return object EasyRdf_Literal_HexBinary
   */
  public static function fromBinary($binary) {
    return new self(bin2hex($binary));
  }

  /** Decode the hexadecimal string into a binary blob
   *
   * @return string The binary blob
   */
  public function toBinary() {
    return pack("H*", $this->value);
  }

}

Classes

Name	Description
EasyRdf_Literal_HexBinary	Class that represents an RDF Literal of datatype xsd:hexBinary