<?php

/** PHPExcel root directory */
if (! defined ( 'PHPEXCEL_ROOT' ))
{
  /**
   *
   * @ignore
   *
   */
  define ( 'PHPEXCEL_ROOT', dirname ( __FILE__ ) . '/../../' );
  require (PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
}

/**
 * PHPExcel_Cell_DefaultValueBinder
 *
 * Copyright (c) 2006 - 2015 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * @category PHPExcel
 * @package PHPExcel_Cell
 * @copyright Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
 * @version ##VERSION##, ##DATE##
 */
class PHPExcel_Cell_DefaultValueBinder implements PHPExcel_Cell_IValueBinder
{
  /**
   * Bind value to a cell
   *
   * @param PHPExcel_Cell $cell
   *          Cell to bind value to
   * @param mixed $value
   *          Value to bind in cell
   * @return boolean
   */
  public function bindValue(PHPExcel_Cell $cell, $value = null)
  {
    // sanitize UTF-8 strings
    if (is_string ( $value ))
    {
      $value = PHPExcel_Shared_String::SanitizeUTF8 ( $value );
    }
    elseif (is_object ( $value ))
    {
      // Handle any objects that might be injected
      if ($value instanceof DateTime)
      {
        $value = $value->format ( 'Y-m-d H:i:s' );
      }
      elseif (! ($value instanceof PHPExcel_RichText))
      {
        $value = ( string ) $value;
      }
    }
    
    // Set value explicit
    $cell->setValueExplicit ( $value, self::dataTypeForValue ( $value ) );
    
    // Done!
    return true;
  }
  
  /**
   * DataType for value
   *
   * @param mixed $pValue          
   * @return string
   */
  public static function dataTypeForValue($pValue = null)
  {
    // Match the value against a few data types
    if ($pValue === null)
    {
      return PHPExcel_Cell_DataType::TYPE_NULL;
    }
    elseif ($pValue === '')
    {
      return PHPExcel_Cell_DataType::TYPE_STRING;
    }
    elseif ($pValue instanceof PHPExcel_RichText)
    {
      return PHPExcel_Cell_DataType::TYPE_INLINE;
    }
    elseif ($pValue {0} === '=' && strlen ( $pValue ) > 1)
    {
      return PHPExcel_Cell_DataType::TYPE_FORMULA;
    }
    elseif (is_bool ( $pValue ))
    {
      return PHPExcel_Cell_DataType::TYPE_BOOL;
    }
    elseif (is_float ( $pValue ) || is_int ( $pValue ))
    {
      return PHPExcel_Cell_DataType::TYPE_NUMERIC;
    }
    elseif (preg_match ( '/^[\+\-]?([0-9]+\\.?[0-9]*|[0-9]*\\.?[0-9]+)([Ee][\-\+]?[0-2]?\d{1,3})?$/', $pValue ))
    {
      $tValue = ltrim ( $pValue, '+-' );
      if (is_string ( $pValue ) && $tValue {0} === '0' && strlen ( $tValue ) > 1 && $tValue {1} !== '.')
      {
        return PHPExcel_Cell_DataType::TYPE_STRING;
      }
      elseif ((strpos ( $pValue, '.' ) === false) && ($pValue > PHP_INT_MAX))
      {
        return PHPExcel_Cell_DataType::TYPE_STRING;
      }
      return PHPExcel_Cell_DataType::TYPE_NUMERIC;
    }
    elseif (is_string ( $pValue ) && array_key_exists ( $pValue, PHPExcel_Cell_DataType::getErrorCodes () ))
    {
      return PHPExcel_Cell_DataType::TYPE_ERROR;
    }
    
    return PHPExcel_Cell_DataType::TYPE_STRING;
  }
}
