style: regex

# ignore all saved schedules, but keep track of the .keep file.

^saved_schedules/[^.]

# ignore common unwanted suffixes

(~|\.orig|\.rej)$

   * \brief

   *   My global identification number. Not defined until the schedule

   *   is processed and first saved.

   */

  private $id;

  /**

	for ($upCounter = 0;

	     $upCounter < $this->nclasses && !$conflict;

	     $upCounter ++)

	    for ($downCounter = $this->nclasses - 1;

		 $downCounter > $upCounter && !$conflict;

		 $downCounter --)

		if ((($start1 >= $start2) && ($start1 <= $end2)) || (($start2 >= $start1) && ($start2 <= $end1)))

		    if(!$conflict

		       && ($this->classStorage[$upCounter]->getSection($cs[$upCounter])->getM()

			   && $this->classStorage[$downCounter]->getSection($cs[$downCounter])->getM()))

			$conflict = TRUE;

		    if(!$conflict

		       && ($this->classStorage[$upCounter]->getSection($cs[$upCounter])->getTu()

			   && $this->classStorage[$downCounter]->getSection($cs[$downCounter])->getTu()))

			$conflict = TRUE;

		    if(!$conflict

		       && ($this->classStorage[$upCounter]->getSection($cs[$upCounter])->getW()

			   && $this->classStorage[$downCounter]->getSection($cs[$downCounter])->getW()))

			$conflict = TRUE;

		    if(!$conflict

		       && ($this->classStorage[$upCounter]->getSection($cs[$upCounter])->getTh()

			   && $this->classStorage[$downCounter]->getSection($cs[$downCounter])->getTh()))

			$conflict = TRUE;

		    if(!$conflict

		       && ($this->classStorage[$upCounter]->getSection($cs[$upCounter])->getF()

			   && $this->classStorage[$downCounter]->getSection($cs[$downCounter])->getF()))

			$conflict = TRUE;

      echo '<p><span id="selectItems"><a href="#">Select Schedules to Print</a></span> :: <a href="'.$_SERVER['SCRIPT_NAME'].'?s=' . $this->id_get() . '">Return to normal view</a> :: <a href="input.php">Home</a></p>';

      echo '<div  id="selectItemsInput"><p><form action="'.$_SERVER["SCRIPT_NAME"].'?s=' . $this->id_get() . '"><label><strong>Schedules to Print</strong> <em>(seperate with commas, "all" for all)</em></label><br /><input type="text" name="print" value="'.$_REQUEST['print'].'" /><input type="submit" value="submit" /><span id="cancelItems"><input type="button" value="cancel" /></span></form></p></div>';

      echo '<p><a href="'.$_SERVER["SCRIPT_NAME"].'?s=' . $this->id_get() . '&amp;print=all">Print</a> :: <a href="input.php">Home</a></p>';

    echo '<form method="get" action="input.php"><p><input type="hidden" name="s" value="' . $this->id_get() . '" /><input type="submit" value="edit" /></p></form>';

  /**

   * \brief

   *   Set my global ID.

   *

   * Only to be called by schedule_store_store().

   */

  function id_set($id)

  { 

    $this->id = $id;

  }

  /*

   * \brief

   *   Get my global ID.

   */

  function id_get()

  {

    return $this->id;

  }

    $result = array(FALSE, FALSE, FALSE, FALSE, FALSE);

	    $val = $h . $m;

	    $selected = '';

	    if ($this->start == $val)

	      $selected = ' selected="selected"';

	    $out .= '      <option value="' . $val . '"' . $selected . '>' . $label . '</option>' . $n;

	    $val = $h . $m;

	    $selected = '';

	    if ($this->tend == $val)

	      $selected = ' selected="selected"';

	    $out .= '      <option value="' . $val . '"' . $selected . '>' . $label . '</option>' . $n;

	  . '           name="postData[' . $class_key . '][' . $section_key . '][days][' . $day_key . ']" value="1" ' . $day_enabled . ' />' . $n

class page

{

  public function showSavedScheds($session)

  {

    echo '<p>';

    if (isset($session['saved']) && count($session['saved']) > 0)

      {

	echo '<div id="savedBox" ><h3>Saved Schedules:</h3>';

	foreach($session['saved'] as $key => $name)

	  {

	    echo '<a href="process.php?s=' . $key . '" title="View schedule #' . $key . '">#' . $key . "</a>:\n "

	      . htmlentities($name)

	      . ' <a href="input.php?s=' . $key . '">edit</a>'

	      . ' <a href="process.php?del=' . $key . '">delete</a>'

	      . "<br /><br />\n";

	  }

	echo '</div>';

      }

    echo '</p>';

  }

  /**

   * \brief

   *   Display a 404 page and halt the PHP interpreter.

   *

   * This function does not return. It handles the creation of a Page

   * class with 404-ish stuff and then calls exit() after flushing the

   * page out to the user.

   *

   * \param $message

   *   A message consisting of valid XHTML to display to the user in

   *   the 404 page.

   */

  public static function show_404($message = 'I couldn\'t find what you were looking for :-/.')

  {

    $page_404 = new Page('404: Content Not Found');

    echo "<h2>404: Content Not Found</h2>\n"

      . "<p>\n"

      . '  ' . $message . "\n"

      . "</p>\n";

    $page_404->foot();

    exit();

  }

<?php

/*

 * Copyright 2010 Nathan Phillip Brink <ohnobinki@ohnopublishing.net>

 *

 * This file is a part of slate_permutate.

 *

 * slate_permutate is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Affero General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * slate_permutate is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU Affero General Public License for more details.

 *

 * You should have received a copy of the GNU Affero General Public License

 * along with slate_permutate.  If not, see <http://www.gnu.org/licenses/>.

 */

require_once('class.schedule.php');

/**

 * \brief

 *   Initialize a schedule_store.

 *

 * \param $dir

 *   Directory to use as the schedule storage.

 * \return

 *   A schedule_store handle or NULL on failure.

 */

function schedule_store_init($dir = 'saved_schedules')

{

  $schedule_store = array();

  if (!is_dir($dir) || !is_writable($dir))

    {

      error_log('I can\'t write to ' . $dir . ' or it is not a directory!');

      return NULL;

    }

  $schedule_store['dir'] = realpath($dir);

  return $schedule_store;

}

/**

 * \brief

 *   Store a saved schedule into the schedule storage.

 *

 * \param $schedule_store

 *   The schedule_store handle from schedule_store_init().

 * \param $schedule

 *   The schedule object of type Schedule.

 * \return

 *   The newly-saved schedules global ID (numeric) or NULL on error.

 */

function schedule_store_store($schedule_store, $schedule)

{

  $tempfile_name = tempnam($schedule_store['dir'], 'sch');

  $new_schedule_id_name = tempnam($schedule_store['dir'], 'id');

  $new_schedule_id_file = fopen($new_schedule_id_name, 'wb');

  _schedule_store_flock_grab($schedule_store, LOCK_EX);

  /* if the file doesn't exist, we'll end up with a value of 1 for our first entry. */

  $schedule_id = (int)file_get_contents($schedule_store['dir'] . DIRECTORY_SEPARATOR . 'lastid');

  $new_schedule_id = $schedule_id + 1;

  fwrite($new_schedule_id_file, $new_schedule_id);

  fclose($new_schedule_id_file);

  rename($new_schedule_id_name, $schedule_store['dir'] . DIRECTORY_SEPARATOR . 'lastid');

  _schedule_store_flock_release($schedule_store);

  /* we need to serialize the schedule _after_ giving it an ID */

  $schedule->id_set($new_schedule_id);

  file_put_contents($tempfile_name, serialize($schedule));

  rename($tempfile_name, $schedule_store['dir'] . DIRECTORY_SEPARATOR . $new_schedule_id);

  return $new_schedule_id;

}

/**

 * \brief

 *   Retrieve a stored saved schedule from the schedule storage.

 *

 * \param $schedule_store

 *   The schedule_store handle from which to retrieve the saved

 *   schedule.

 * \param $schedule_id

 *   The saved schedule's globally-accessible ID. This value must have

 *   been returned from schedule_store_store() at one point.

 * \return

 *   A Schedule object whose ID was $schedule_id or NULL if

 *   $schedule_id is an invalid or not-yet-allocated schedule

 *   identifier.

 */

function schedule_store_retrieve($schedule_store, $schedule_id)

{

  if (strcmp($schedule_id, (int)$schedule_id))

    return NULL;

  $schedule_id = (int)$schedule_id;

  $schedule_serialized = file_get_contents($schedule_store['dir'] . DIRECTORY_SEPARATOR . $schedule_id);

  if ($schedule_serialized === FALSE)

    return NULL;

  $schedule = unserialize($schedule_serialized);

  if ($schedule === FALSE)

    return NULL;

  return $schedule;

}

/**

 * \brief

 *   Delete a saved schedule.

 *

 * \param $schedule_store

 *   The store from which to delete the schedule.

 * \param $schedule_id

 *   The identifier of the schedule to delete.

 */

function schedule_store_delete($schedule_store, $schedule_id)

{

  $remove_filename = $schedule_store['dir'] . DIRECTORY_SEPARATOR . $schedule_id;

  /* avoid an E_WARNING if the file doesn't exist */

  if (file_exists($remove_filename))

    unlink($remove_filename);

}

/**

 * \brief

 *   Obtains a lock on the /lastid file in the schedule_store.

 *

 * \see _schedule_store_flock_release().

 *

 * \param $schedule_store

 *   The schedule_store instance we're working with.

 * \param $operation

 *   Which flock() operation to perform: valid are LOCK_SH and LOCK_EX.

 */

function _schedule_store_flock_grab(&$schedule_store, $operation)

{

  $schedule_store['lastid_flock_file'] = fopen($schedule_store['dir'] . DIRECTORY_SEPARATOR . 'lastid.flock', 'c');

  return flock($schedule_store['lastid_flock_file'], $operation);

}

/**

 * \brief

 *   Release a lock grabbed with _schedule_store_flock_grab().

 */

function _schedule_store_flock_release(&$schedule_store)

{

  flock($schedule_store['lastid_flock_file'], LOCK_UN);

  fclose($schedule_store['lastid_flock_file']);

  unset($schedule_store['lastid_flock_file']);

}

require_once('inc/schedule_store.inc');

$schedule_store = FALSE;

if (isset($_REQUEST['s']))

    $schedule_store = schedule_store_init();

    $schedule_id = (int)$_REQUEST['s'];

    $sch = schedule_store_retrieve($schedule_store, $schedule_id);

require_once('inc/schedule_store.inc');

require_once('inc/class.page.php');

$DEBUG = FALSE;

if (isset($_GET['debug']))

  $DEBUG = $_GET['debug'];

$schedule_store = schedule_store_init();

if(!$DEBUG)

  {

    if(isset($_GET['s']))

      {

	$savedSched = schedule_store_retrieve($schedule_store, $_GET['s']);

	if ($savedSched)

	  $savedSched->writeoutTables();

	else

	  Page::show_404('Unable to find a saved schedule with an ID of ' . $_GET['s'] . '.');

      }

    elseif(isset($_GET['del']))

      {

	/* Allow the user to delete schedules that he has stored in his session */

	if ($_SESSION['saved'][(int)$_GET['del']])

	  {

	    /* user owns this schedule ID */

	    schedule_store_delete($schedule_store, (int)$_GET['del']);

	    unset($_SESSION['saved'][(int)$_GET['del']]);

	  }

	header('Location: input.php');

      }

    else

      {

		if (!isset($_SESSION['saved']))

		  $_SESSION['saved'] = array();

		$schedule_id = schedule_store_store($schedule_store, $allClasses);

		if ($schedule_id != NULL)

		  $_SESSION['saved'][$schedule_id] = $allClasses->getName();

		/*

		 * writeoutTables() needs to know $schedule_id, so it

		 * has to be called after we save the schedule. See

		 * schedule_store_store().

		 */

      }

  }

else

  {