<?php

/**

 * PHPExcel

 *

 * Copyright (c) 2006 - 2014 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 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)

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

 * @version    1.8.0, 2014-03-02

 */





/** 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 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)

 */

class PHPExcel_Reader_CSV extends PHPExcel_Reader_Abstract 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

	 *

	 * @var	int

	 */

	private $_contiguousRow	= -1;





	/**

	 * Create a new PHPExcel_Reader_CSV

	 */

	public function __construct() {

		$this->_readFilter		= new PHPExcel_Reader_DefaultReadFilter();

	}



	/**

	 * Validate that the current file is a CSV file

	 *

	 * @return boolean

	 */

	protected function _isValidFormat()

	{

		return TRUE;

	}



	/**

	 * Set input encoding

	 *

	 * @param string $pValue Input encoding

	 */

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

	{

		$this->_inputEncoding = $pValue;

		return $this;

	}



	/**

	 * Get input encoding

	 *

	 * @return string

	 */

	public function getInputEncoding()

	{

		return $this->_inputEncoding;

	}



	/**

	 * Move filepointer past any BOM marker

	 *

	 */

	protected function _skipBOM()

	{

		rewind($this->_fileHandle);



		switch ($this->_inputEncoding) {

			case 'UTF-8':

				fgets($this->_fileHandle, 4) == "\xEF\xBB\xBF" ?

					fseek($this->_fileHandle, 3) : fseek($this->_fileHandle, 0);

				break;

			case 'UTF-16LE':

				fgets($this->_fileHandle, 3) == "\xFF\xFE" ?

					fseek($this->_fileHandle, 2) : fseek($this->_fileHandle, 0);

				break;

			case 'UTF-16BE':

				fgets($this->_fileHandle, 3) == "\xFE\xFF" ?

					fseek($this->_fileHandle, 2) : fseek($this->_fileHandle, 0);

				break;

			case 'UTF-32LE':

				fgets($this->_fileHandle, 5) == "\xFF\xFE\x00\x00" ?

					fseek($this->_fileHandle, 4) : fseek($this->_fileHandle, 0);

				break;

			case 'UTF-32BE':

				fgets($this->_fileHandle, 5) == "\x00\x00\xFE\xFF" ?

					fseek($this->_fileHandle, 4) : fseek($this->_fileHandle, 0);

				break;

			default:

				break;

		}

	}



	/**

	 * Return worksheet info (Name, Last Column Letter, Last Column Index, Total Rows, Total Columns)

	 *

	 * @param 	string 		$pFilename

	 * @throws	PHPExcel_Reader_Exception

	 */

	public function listWorksheetInfo($pFilename)

	{

		// Open file

		$this->_openFile($pFilename);

		if (!$this->_isValidFormat()) {

			fclose ($this->_fileHandle);

			throw new PHPExcel_Reader_Exception($pFilename . " is an Invalid Spreadsheet file.");

		}

		$fileHandle = $this->_fileHandle;



		// Skip BOM, if any

		$this->_skipBOM();



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



		$worksheetInfo = array();

		$worksheetInfo[0]['worksheetName'] = 'Worksheet';

		$worksheetInfo[0]['lastColumnLetter'] = 'A';

		$worksheetInfo[0]['lastColumnIndex'] = 0;

		$worksheetInfo[0]['totalRows'] = 0;

		$worksheetInfo[0]['totalColumns'] = 0;



		// Loop through each line of the file in turn

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

			$worksheetInfo[0]['totalRows']++;

			$worksheetInfo[0]['lastColumnIndex'] = max($worksheetInfo[0]['lastColumnIndex'], count($rowData) - 1);

		}



		$worksheetInfo[0]['lastColumnLetter'] = PHPExcel_Cell::stringFromColumnIndex($worksheetInfo[0]['lastColumnIndex']);

		$worksheetInfo[0]['totalColumns'] = $worksheetInfo[0]['lastColumnIndex'] + 1;



		// Close file

		fclose($fileHandle);



		return $worksheetInfo;

	}



	/**

	 * Loads PHPExcel from file

	 *

	 * @param 	string 		$pFilename

	 * @return PHPExcel

	 * @throws PHPExcel_Reader_Exception

	 */

	public function load($pFilename)

	{

		// Create new PHPExcel

		$objPHPExcel = new PHPExcel();



		// Load into this instance

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

	}



	/**

	 * Loads PHPExcel from file into PHPExcel instance

	 *

	 * @param 	string 		$pFilename

	 * @param	PHPExcel	$objPHPExcel

	 * @return 	PHPExcel

	 * @throws 	PHPExcel_Reader_Exception

	 */

	public function loadIntoExisting($pFilename, PHPExcel $objPHPExcel)

	{

		$lineEnding = ini_get('auto_detect_line_endings');

		ini_set('auto_detect_line_endings', true);



		// Open file

		$this->_openFile($pFilename);

		if (!$this->_isValidFormat()) {

			fclose ($this->_fileHandle);

			throw new PHPExcel_Reader_Exception($pFilename . " is an Invalid Spreadsheet file.");

		}

		$fileHandle = $this->_fileHandle;



		// Skip BOM, if any

		$this->_skipBOM();



		// Create new PHPExcel object

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

			$objPHPExcel->createSheet();

		}

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



		$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) ? $sheet->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

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

				}

				++$columnLetter;

			}

			++$currentRow;

		}



		// Close file

		fclose($fileHandle);



		if ($this->_contiguous) {

			$this->_contiguousRow = $currentRow;

		}



		ini_set('auto_detect_line_endings', $lineEnding);



		// Return

		return $objPHPExcel;

	}



	/**

	 * Get delimiter

	 *

	 * @return string

	 */

	public function getDelimiter() {

		return $this->_delimiter;

	}



	/**

	 * Set delimiter

	 *

	 * @param	string	$pValue		Delimiter, defaults to ,

	 * @return	PHPExcel_Reader_CSV

	 */

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

		$this->_delimiter = $pValue;

		return $this;

	}



	/**

	 * Get enclosure

	 *

	 * @return string

	 */

	public function getEnclosure() {

		return $this->_enclosure;

	}



	/**

	 * Set enclosure

	 *

	 * @param	string	$pValue		Enclosure, defaults to "

	 * @return PHPExcel_Reader_CSV

	 */

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

		if ($pValue == '') {

			$pValue = '"';

		}

		$this->_enclosure = $pValue;

		return $this;

	}



	/**

	 * Get line ending

	 *

	 * @return string

	 */

	public function getLineEnding() {

		return $this->_lineEnding;

	}



	/**

	 * Set line ending

	 *

	 * @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;

	}



	/**

	 * Get sheet index

	 *

	 * @return integer

	 */

	public function getSheetIndex() {

		return $this->_sheetIndex;

	}



	/**

	 * Set sheet index

	 *

	 * @param	integer		$pValue		Sheet index

	 * @return PHPExcel_Reader_CSV

	 */

	public function setSheetIndex($pValue = 0) {

		$this->_sheetIndex = $pValue;

		return $this;

	}



	/**

	 * Set Contiguous

	 *

	 * @param boolean $contiguous

	 */

	public function setContiguous($contiguous = FALSE)

	{

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

		if (!$contiguous) {

			$this->_contiguousRow = -1;

		}



		return $this;

	}



	/**

	 * Get Contiguous

	 *

	 * @return boolean

	 */

	public function getContiguous() {

		return $this->_contiguous;

	}



}

