<?php

/**

 * PHPExcel

 *

 * Copyright (c) 2006 - 2011 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_Reader

 * @copyright  Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)

 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL

 * @version    1.7.6, 2011-02-27

 */





/** PHPExcel root directory */

if (!defined('PHPEXCEL_ROOT')) {

	/**

	 * @ignore

	 */

	define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');

	require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');

}



/**

 * PHPExcel_Reader_CSV

 *

 * @category   PHPExcel

 * @package    PHPExcel_Reader

 * @copyright  Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)

 */

class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader

{

	/**

	 *	Input encoding

	 *

	 *	@access	private

	 *	@var	string

	 */

	private $_inputEncoding	= 'UTF-8';



	/**

	 *	Delimiter

	 *

	 *	@access	private

	 *	@var string

	 */

	private $_delimiter		= ',';



	/**

	 *	Enclosure

	 *

	 *	@access	private

	 *	@var	string

	 */

	private $_enclosure		= '"';



	/**

	 *	Line ending

	 *

	 *	@access	private

	 *	@var	string

	 */

	private $_lineEnding	= PHP_EOL;



	/**

	 *	Sheet index to read

	 *

	 *	@access	private

	 *	@var	int

	 */

	private $_sheetIndex	= 0;



	/**

	 *	Load rows contiguously

	 *

	 *	@access	private

	 *	@var	int

	 */

	private $_contiguous	= false;





	/**

	 *	Row counter for loading rows contiguously

	 *

	 *	@access	private

	 *	@var	int

	 */

	private $_contiguousRow	= -1;



	/**

	 *	PHPExcel_Reader_IReadFilter instance

	 *

	 *	@access	private

	 *	@var	PHPExcel_Reader_IReadFilter

	 */

	private $_readFilter = null;



	/**

	 *	Create a new PHPExcel_Reader_CSV

	 */

	public function __construct() {

		$this->_readFilter		= new PHPExcel_Reader_DefaultReadFilter();

	}	//	function __construct()



	/**

	 *	Can the current PHPExcel_Reader_IReader read the file?

	 *

	 *	@access	public

	 *	@param 	string 		$pFileName

	 *	@return boolean

	 *	@throws Exception

	 */

	public function canRead($pFilename)

	{

		// Check if file exists

		if (!file_exists($pFilename)) {

			throw new Exception("Could not open " . $pFilename . " for reading! File does not exist.");

		}



		return true;

	}	//	function canRead()



	/**

	 *	Loads PHPExcel from file

	 *

	 *	@access	public

	 *	@param 	string 		$pFilename

	 *	@return PHPExcel

	 *	@throws Exception

	 */

	public function load($pFilename)

	{

		// Create new PHPExcel

		$objPHPExcel = new PHPExcel();



		// Load into this instance

		return $this->loadIntoExisting($pFilename, $objPHPExcel);

	}	//	function load()



	/**

	 *	Read filter

	 *

	 *	@access	public

	 *	@return PHPExcel_Reader_IReadFilter

	 */

	public function getReadFilter() {

		return $this->_readFilter;

	}	//	function getReadFilter()



	/**

	 *	Set read filter

	 *

	 *	@access	public

	 *	@param	PHPExcel_Reader_IReadFilter $pValue

	 */

	public function setReadFilter(PHPExcel_Reader_IReadFilter $pValue) {

		$this->_readFilter = $pValue;

		return $this;

	}	//	function setReadFilter()



	/**

	 *	Set input encoding

	 *

	 *	@access	public

	 *	@param string $pValue Input encoding

	 */

	public function setInputEncoding($pValue = 'UTF-8')

	{

		$this->_inputEncoding = $pValue;

		return $this;

	}	//	function setInputEncoding()



	/**

	 *	Get input encoding

	 *

	 *	@access	public

	 *	@return string

	 */

	public function getInputEncoding()

	{

		return $this->_inputEncoding;

	}	//	function getInputEncoding()



	/**

	 *	Loads PHPExcel from file into PHPExcel instance

	 *

	 *	@access	public

	 *	@param 	string 		$pFilename

	 *	@param	PHPExcel	$objPHPExcel

	 *	@return 	PHPExcel

	 *	@throws 	Exception

	 */

	public function loadIntoExisting($pFilename, PHPExcel $objPHPExcel)

	{

		// Check if file exists

		if (!file_exists($pFilename)) {

			throw new Exception("Could not open " . $pFilename . " for reading! File does not exist.");

		}



		// Create new PHPExcel

		while ($objPHPExcel->getSheetCount() <= $this->_sheetIndex) {

			$objPHPExcel->createSheet();

		}

		$objPHPExcel->setActiveSheetIndex( $this->_sheetIndex );



		// Open file

		$fileHandle = fopen($pFilename, 'r');

		if ($fileHandle === false) {

			throw new Exception("Could not open file $pFilename for reading.");

		}



		// Skip BOM, if any

		switch ($this->_inputEncoding) {

			case 'UTF-8':

				fgets($fileHandle, 4) == "\xEF\xBB\xBF" ?

					fseek($fileHandle, 3) : fseek($fileHandle, 0);

				break;

			case 'UTF-16LE':

				fgets($fileHandle, 3) == "\xFF\xFE" ?

					fseek($fileHandle, 2) : fseek($fileHandle, 0);

				break;

			case 'UTF-16BE':

				fgets($fileHandle, 3) == "\xFE\xFF" ?

					fseek($fileHandle, 2) : fseek($fileHandle, 0);

				break;

			case 'UTF-32LE':

				fgets($fileHandle, 5) == "\xFF\xFE\x00\x00" ?

					fseek($fileHandle, 4) : fseek($fileHandle, 0);

				break;

			case 'UTF-32BE':

				fgets($fileHandle, 5) == "\x00\x00\xFE\xFF" ?

					fseek($fileHandle, 4) : fseek($fileHandle, 0);

				break;

			default:

				break;

		}



		$escapeEnclosures = array( "\\" . $this->_enclosure,

								   $this->_enclosure . $this->_enclosure

								 );



		// Set our starting row based on whether we're in contiguous mode or not

		$currentRow = 1;

		if ($this->_contiguous) {

			$currentRow = ($this->_contiguousRow == -1) ? $objPHPExcel->getActiveSheet()->getHighestRow(): $this->_contiguousRow;

		}



		// Loop through each line of the file in turn

		while (($rowData = fgetcsv($fileHandle, 0, $this->_delimiter, $this->_enclosure)) !== FALSE) {

			$columnLetter = 'A';

			foreach($rowData as $rowDatum) {

				if ($rowDatum != '' && $this->_readFilter->readCell($columnLetter, $currentRow)) {

					// Unescape enclosures

					$rowDatum = str_replace($escapeEnclosures, $this->_enclosure, $rowDatum);



					// Convert encoding if necessary

					if ($this->_inputEncoding !== 'UTF-8') {

						$rowDatum = PHPExcel_Shared_String::ConvertEncoding($rowDatum, 'UTF-8', $this->_inputEncoding);

					}



					// Set cell value

					$objPHPExcel->getActiveSheet()->getCell($columnLetter . $currentRow)->setValue($rowDatum);

				}

				++$columnLetter;

			}

			++$currentRow;

		}



		// Close file

		fclose($fileHandle);



		if ($this->_contiguous) {

			$this->_contiguousRow = $currentRow;

		}



		// Return

		return $objPHPExcel;

	}	//	function loadIntoExisting()



	/**

	 *	Get delimiter

	 *

	 *	@access	public

	 *	@return string

	 */

	public function getDelimiter() {

		return $this->_delimiter;

	}	//	function getDelimiter()



	/**

	 *	Set delimiter

	 *

	 *	@access	public

	 *	@param	string	$pValue		Delimiter, defaults to ,

	 *	@return	PHPExcel_Reader_CSV

	 */

	public function setDelimiter($pValue = ',') {

		$this->_delimiter = $pValue;

		return $this;

	}	//	function setDelimiter()



	/**

	 *	Get enclosure

	 *

	 *	@access	public

	 *	@return string

	 */

	public function getEnclosure() {

		return $this->_enclosure;

	}	//	function getEnclosure()



	/**

	 *	Set enclosure

	 *

	 *	@access	public

	 *	@param	string	$pValue		Enclosure, defaults to "

	 *	@return PHPExcel_Reader_CSV

	 */

	public function setEnclosure($pValue = '"') {

		if ($pValue == '') {

			$pValue = '"';

		}

		$this->_enclosure = $pValue;

		return $this;

	}	//	function setEnclosure()



	/**

	 *	Get line ending

	 *

	 *	@access	public

	 *	@return string

	 */

	public function getLineEnding() {

		return $this->_lineEnding;

	}	//	function getLineEnding()



	/**

	 *	Set line ending

	 *

	 *	@access	public

	 *	@param	string	$pValue		Line ending, defaults to OS line ending (PHP_EOL)

	 *	@return PHPExcel_Reader_CSV

	 */

	public function setLineEnding($pValue = PHP_EOL) {

		$this->_lineEnding = $pValue;

		return $this;

	}	//	function setLineEnding()



	/**

	 *	Get sheet index

	 *

	 *	@access	public

	 *	@return int

	 */

	public function getSheetIndex() {

		return $this->_sheetIndex;

	}	//	function getSheetIndex()



	/**

	 *	Set sheet index

	 *

	 *	@access	public

	 *	@param	int		$pValue		Sheet index

	 *	@return PHPExcel_Reader_CSV

	 */

	public function setSheetIndex($pValue = 0) {

		$this->_sheetIndex = $pValue;

		return $this;

	}	//	function setSheetIndex()



	/**

	 *	Set Contiguous

	 *

	 *	@access	public

	 *	@param string $pValue Input encoding

	 */

	public function setContiguous($contiguous = false)

	{

		$this->_contiguous = (bool)$contiguous;

		if (!$contiguous) {

			$this->_contiguousRow	= -1;

		}



		return $this;

	}	//	function setInputEncoding()



	/**

	 *	Get Contiguous

	 *

	 *	@access	public

	 *	@return boolean

	 */

	public function getContiguous() {

		return $this->_contiguous;

	}	//	function getSheetIndex()



}