root/cleversvg/trunk/cleversvg.php

<?php // CleverSvg framework class autoloading
function __autoload($class)
{
  $dirs = array('exceptions',
                'base',
                'container',
                'gradients',
                'elements',
                'importer',
                'document',
                'interfaces');
  $pwd = dirname(__FILE__);
  foreach ($dirs as $dir)
  {
    foreach (array('class', 'interface') as $type)
    {
      $class_file = sprintf('%s%s%s%s%s.%s.php',
                            $pwd, DIRECTORY_SEPARATOR,
                            $dir, DIRECTORY_SEPARATOR, $class,
                            $type);
      if (file_exists($class_file))
      {
        if ($type == 'interface')
        {
          interface_exists($class) or require($class_file);
        }
        else
        {
          class_exists($class) or require($class_file);
        }
      }
    }
  }
}

/**
 * CleverSvg default PHP error handler
 *
 * TODO: switch from error code to provide specific errors
 *
 * @param  int    $code
 * @param  string $message
 * @param  string $file
 * @param  int    $line
 * @throws csException
 */
function cs_error_handler($code, $message, $file, $line)
{
  switch ($code)
  {
    case E_USER_ERROR:
      $type = 'Error';
      $exception = 'csException';
      break;
    case E_USER_WARNING:
      $type = 'Warning';
      $exception = 'csException';
      break;
    case E_USER_NOTICE:
      $type = 'Notice';
      $exception = 'csException';
      break;
    default:
      $type = 'Unknown error';
      $exception = 'csException';
      break;
  }
  $message = sprintf('%s "%s" in %s line %d',
                     $type, $message, $file, $line);
  throw new $exception($message, $code);
}
set_error_handler('cs_error_handler');