Subversion Repositories PHPX

<?php

require_once 'global.inc';

define('FEATURES_ENCODING',

  mb_detect_encoding(file_get_contents($_SERVER['SCRIPT_FILENAME'])));

/**

 * A list of language features with URNs definitions

 * for reference links.

 */

class FeatureList

{

  public $versions = array();

  /**

   * Versions of implementations that are considered safe.

   * A feature is considered safe if it does not require

   * an implementation version above these versions.

   *

   * @var Array[string=>string]

   */

  public $safeVersions = array();

  /**

   * URNs that can be used for reference links.

   *

   * @var Array[string=>string]

   */

  protected $urns = array();

  /**

   * The list of language features

   *

   * @var array[Features]

   */

  protected $items = array();

  /**

   * Determines the number of printed items the table headings should be repeated

   *

   * @var int

   */

  protected $headerRepeat = 25;

  /**

   * Initializes the FeatureList object

   *

   * @param array|Object $a

   * @return FeatureList

   */

  public function __construct($a)

  {

    $aVars = get_class_vars(get_class($this));

    while ((list($key, $value) = each($aVars)))

    {

      if (isset($a[$key]))

      {

        $this->$key = $a[$key];

      }

    }

    /* Inform items of ourself so that URNs can be used for links */

    if (is_array($this->items))

    {

      foreach ($this->items as &$item)

      {

        $item->setList($this);

      }

    }

    /* resolve URN references that are URNs */

    if (is_array($this->urns))

    {

      foreach ($this->urns as &$urn)

      {

        if (($url = $this->resolveURN($urn)))

        {

          $urn = $url;

        }

      }

    }

  }

  public function printHeaders()

  {

    foreach ($this->versions as $ver)

    {

?>

          <th><?php echo $ver; ?></th>

<?php

    }

  }

  /**

   * Prints the list of features.

   *

   * @see Feature::printMe()

   */

  public function printItems()

  {

    $counter = 0;

    $headerRepeat = $this->headerRepeat;

    $repeatHeaders = ($headerRepeat > 1);

    foreach ($this->items as $feature)

    {

      if ($feature instanceof Feature)

      {

        if ($repeatHeaders

            && $counter > 1

            && $counter % $headerRepeat === 0)

        {

?>

        <tr class="header">

          <th>Feature</th>

          <?php $this->printHeaders(); ?>

        </tr>

<?php

        }

        $feature->printMe();

        $counter++;

      }

    }

  }

  /**

   * Resolves a URN according to the value of the

   * object's <code>$urn</code> property.

   *

   * @param string $urn

   *   URN to be resolved

   * @return string|boolean

   *   The resolved URN if successful,

   *   <code>false</code> otherwise.

   */

  public function resolveURN($urn)

  {

    if (is_array($this->urns))

    {

      $reURN = '|^(.+?):(?!//)|';

      if (preg_match($reURN, $urn, $m) && isset($this->urns[$m[1]]))

      {

        return preg_replace($reURN, $this->urns[$m[1]], $urn);

      }

    }

    return $urn;

  }

}

/**

 * A language feature.

 */

class Feature

{

  /**

   * Fragment identifiers to be defined for quickly accessing

   * the feature description.

   *

   * @var Array[String]

   */

  protected $anchors = array();

  /**

   * Value of the explanatory <code>title</code> attribute for the feature.

   *

   * @var string

   */

  protected $title = '';

  /**

   * Name or example code of the feature

   *

   * @var string

   */

  protected $content = '';

  /**

   * Description of the feature.  Displayed directly if code is missing,

   * otherwise used as `title' attribute value.

   *

   * @var string

   */

  protected $descr = '';

  /**

   * Versions that support this feature

   *

   * @var Array

   */

  protected $versions = array();

  /**

   * Reference to the FeatureList that this feature belongs to

   *

   * @var FeatureList

   */

  protected $list = null;

  public function setList(&$oList)

  {

    $this->list =& $oList;

  }

  /**

   * Creates a new Feature object, using values from the passed parameters

   * array.

   *

   * @param array|Object $params

   * @return Feature

   */

  public function __construct($params = array())

  {

    $aVars = get_class_vars(get_class($this));

    while ((list($key, $value) = each($aVars)))

    {

      if (isset($params[$key]))

      {

        $this->$key = $params[$key];

      }

    }

  }

  /**

   * Returns <code>' class="safe"'</code> if the feature

   * can be considered safe.  The required information

   * is stored in the <code>safeVersions</code> property

   * of the associated <code>FeatureList</code> object.

   *

   * @return string

   * @see FeatureList::defaultSafeVersions

   */

  protected function getSafeStr()

  {

    if (!is_null($this->list))

    {

      foreach ($this->list->safeVersions as $impl => &$safeVer)

      {

        $thisImplVer =& $this->versions[$impl];

        if (is_array($thisImplVer))

        {

          if (isset($thisImplVer['tested']) && !is_bool($thisImplVer['tested']))

          {

            $thisImplVer =& $thisImplVer['tested'];

          }

          else

        {

            $thisImplVer =& $thisImplVer[0];

          }

        }

        /* DEBUG */

        // echo " $impl=$thisImplVer ";

        if (preg_match('/^-?$/', $thisImplVer) || $thisImplVer > $safeVer)

        {

          return '';

        }

      }

      return ' class="safe"';

    }

    else

    {

      return '';

    }

  }

  protected function getTitleStr()

  {

    if (!empty($this->title))

    {

      return " title=\"{$this->title}\"";

    }

    else

    {

      return '';

    }

  }

  protected function getAnchors()

  {

    $result = array();

    foreach ($this->anchors as $anchor)

    {

      $result[] = "<a name=\"{$anchor}\"";

      if (preg_match('/^[a-z][a-z0-9_:.-]*/i', $anchor))

      {

        $result[] = " id=\"{$anchor}\"";

      }

      $result[] = '></a>';

    }

    return join('', $result);

  }

  protected function getAssumed($v)

  {

    if (is_array($v) && isset($v['assumed']) && $v['assumed'])

    {

      return ' class="assumed"';

    }

    return '';

  }

  protected function getTested($v)

  {

    if (is_array($v) && isset($v['tested']) && $v['tested'])

    {

      return ' class="tested"';

    }

    return '';

  }

  /**

   * Returns the version of a feature.

   *

   * @param string|VersionInfo $vInfo

   * @return mixed

   */

  protected function getVer($vInfo)

  {

    if (is_array($vInfo))

    {

      /* TODO: Return all versions: documented, assumed, and tested */

      $vNumber = (isset($vInfo['tested'])

                  && gettype($vInfo['tested']) !== 'boolean')

                     ? $vInfo['tested']

                     : $vInfo[0];

      $section = isset($vInfo['section'])

                   ? ' <span class="section" title="Specification section">['

                      . $vInfo['section'] . ']</span>'

                   : '';

      if (isset($vInfo['urn']))

      {

        if ($this->list instanceof FeatureList)

        {

          $url = $this->list->resolveURN($vInfo['urn']);

          $vNumber = '<a href="' . $url . '">' . $vNumber

            . ($section ? $section : '') . '</a>';

        }

      }

      else if ($section)

      {

        $vNumber .= $section;

      }

      $vInfo = $vNumber;

    }

    return ($vInfo === '-')

      ? '<span title="Not supported">&#8722;</span>'

      : $vInfo;

  }

  protected static function shl($s)

  {

    /* stub */

  }

  public function printMe()

  {

    ?>

<tr<?php echo $this->getSafeStr(); ?>>

          <th<?php echo $this->getTitleStr(); ?>><?php

            echo $this->getAnchors();

            echo /*preg_replace_callback(

              '#(<code>)(.+?)(</code>)#',

              array('self', 'shl'),*/

              preg_replace('/…/', '…', $this->content)/*)*/;

            ?></th>

<?php

    $versions = $this->versions;

    if (!is_null($this->list))

    {

      $versions =& $this->list->versions;

    }

    static $row = 0;

    $row++;

    $column = 0;

    foreach ($versions as $key => $value)

    {

      $column++;

      $id = "td$row-$column";

      $ver = $this->versions[$key];

?>

          <td id="<?php echo $id; ?>"<?php

            echo $this->getAssumed($ver) . $this->getTested($ver);

            if (!$key)

            {

              if (!empty($ver))

              {

                echo ' title="Test code: '

                  . htmlspecialchars(

                      stripslashes($ver),

                      ENT_COMPAT,

                      FEATURES_ENCODING)

                  . '"';

              }

              else

              {

                echo ' title="Not applicable: No automated test case'

                  . ' is available for this feature.  Please click'

                  . ' the feature code in the first column to run'

                  . ' a manual test."';

              }

            }

            ?>><?php

            if ($key)

            {

              echo $this->getVer($ver);

            }

            else

            {

              if (!empty($ver))

              {

                ?><script type="text/javascript">

  // <![CDATA[

  var s = test(<?php echo $ver; ?>, '<span title="Supported">+</span>',

    '<span title="Not supported">&#8722;</span>');

  tryThis("document.write(s);",

          "document.getElementById('<?php echo $id; ?>').appendChild("

          + "document.createTextNode(s));");

  // ]]>

</script><?php

              }

              else

              {

                echo '<abbr>N/A</abbr>';

              }

            }

            ?></td>

<?php

    }

?>

        </tr>

<?php

  }

}

?>