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PHPExcel/Classes/PHPExcel/Reader/HTML.php

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<?php
/**
* PHPExcel
*
* Copyright (c) 2006 - 2012 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 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version ##VERSION##, ##DATE##
*/
/** PHPExcel root directory */
if (!defined('PHPEXCEL_ROOT')) {
/**
* @ignore
*/
define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
}
/**
* PHPExcel_Reader_HTML
*
* @category PHPExcel
* @package PHPExcel_Reader
* @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
*/
class PHPExcel_Reader_HTML implements PHPExcel_Reader_IReader
{
/**
* Input encoding
*
* @var string
*/
private $_inputEncoding = 'ANSI';
/**
* Sheet index to read
*
* @var int
*/
private $_sheetIndex = 0;
/**
* Formats
*
* @var array
*/
private $_formats = array( 'h1' => array( 'font' => array( 'bold' => true,
'size' => 24,
),
), // Bold, 24pt
'h2' => array( 'font' => array( 'bold' => true,
'size' => 18,
),
), // Bold, 18pt
'h3' => array( 'font' => array( 'bold' => true,
'size' => 13.5,
),
), // Bold, 13.5pt
'h4' => array( 'font' => array( 'bold' => true,
'size' => 12,
),
), // Bold, 12pt
'h5' => array( 'font' => array( 'bold' => true,
'size' => 10,
),
), // Bold, 10pt
'h6' => array( 'font' => array( 'bold' => true,
'size' => 7.5,
),
), // Bold, 7.5pt
'a' => array( 'font' => array( 'underline' => true,
'color' => array( 'argb' => PHPExcel_Style_Color::COLOR_BLUE,
),
),
), // Blue underlined
'hr' => array( 'borders' => array( 'bottom' => array( 'style' => PHPExcel_Style_Border::BORDER_THIN,
'color' => array( PHPExcel_Style_Color::COLOR_BLACK,
),
),
),
), // Bottom border
);
/**
* PHPExcel_Reader_IReadFilter instance
*
* @var PHPExcel_Reader_IReadFilter
*/
private $_readFilter = null;
/**
* Create a new PHPExcel_Reader_HTML
*/
public function __construct() {
$this->_readFilter = new PHPExcel_Reader_DefaultReadFilter();
}
/**
* Can the current PHPExcel_Reader_IReader read the file?
*
* @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.");
}
// Read sample data (first 2 KB will do)
$fh = fopen($pFilename, 'r');
$data = fread($fh, 2048);
fclose($fh);
if ((strpos('<',$data) !== FALSE) &&
(strlen($data) !== strlen(strip_tags($data)))) {
return TRUE;
}
return FALSE;
}
/**
* Loads PHPExcel from file
*
* @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);
}
/**
* Read filter
*
* @return PHPExcel_Reader_IReadFilter
*/
public function getReadFilter() {
return $this->_readFilter;
}
/**
* Set read filter
*
* @param PHPExcel_Reader_IReadFilter $pValue
*/
public function setReadFilter(PHPExcel_Reader_IReadFilter $pValue) {
$this->_readFilter = $pValue;
return $this;
}
/**
* Set input encoding
*
* @param string $pValue Input encoding
*/
public function setInputEncoding($pValue = 'ANSI')
{
$this->_inputEncoding = $pValue;
return $this;
}
/**
* Get input encoding
*
* @return string
*/
public function getInputEncoding()
{
return $this->_inputEncoding;
}
// Data Array used for testing only, should write to PHPExcel object on completion of tests
private $_dataArray = array();
private $_tableLevel = 0;
private $_nestedColumn = array('A');
private function _setTableStartColumn($column) {
if ($this->_tableLevel == 0)
$column = 'A';
++$this->_tableLevel;
$this->_nestedColumn[$this->_tableLevel] = $column;
return $this->_nestedColumn[$this->_tableLevel];
}
private function _getTableStartColumn() {
return $this->_nestedColumn[$this->_tableLevel];
}
private function _releaseTableStartColumn() {
--$this->_tableLevel;
return array_pop($this->_nestedColumn);
}
private function _flushCell($sheet,$column,$row,&$cellContent) {
if (is_string($cellContent)) {
// Simple String content
if (trim($cellContent) > '') {
// Only actually write it if there's content in the string
echo 'FLUSH CELL: ' , $column , $row , ' => ' , $cellContent , '<br />';
// Write to worksheet to be done here...
// ... we return the cell so we can mess about with styles more easily
$cell = $sheet->setCellValue($column.$row,$cellContent,true);
$this->_dataArray[$row][$column] = $cellContent;
}
} else {
// We have a Rich Text run
// TODO
$this->_dataArray[$row][$column] = 'RICH TEXT: ' . $cellContent;
}
$cellContent = (string) '';
}
private function _processDomElement(DOMNode $element, $sheet, &$row, &$column, &$cellContent){
foreach($element->childNodes as $child){
if ($child instanceOf DOMText) {
$domText = preg_replace('/\s+/',' ',trim($child->nodeValue));
if (is_string($cellContent)) {
// simply append the text if the cell content is a plain text string
$cellContent .= $domText;
} else {
// but if we have a rich text run instead, we need to append it correctly
// TODO
}
} elseif($child instanceOf DOMElement) {
echo '<b>DOM ELEMENT: </b>' , strtoupper($child->nodeName) , '<br />';
$attributeArray = array();
foreach($child->attributes as $attribute) {
echo '<b>ATTRIBUTE: </b>' , $attribute->name , ' => ' , $attribute->value , '<br />';
$attributeArray[$attribute->name] = $attribute->value;
}
switch($child->nodeName) {
case 'meta' :
foreach($attributeArray as $attributeName => $attributeValue) {
switch($attributeName) {
case 'content':
// TODO
// Extract character set, so we can convert to UTF-8 if required
break;
}
}
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
break;
case 'title' :
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
$sheet->setTitle($cellContent);
$cellContent = '';
break;
case 'span' :
case 'div' :
case 'font' :
case 'i' :
case 'em' :
case 'strong':
case 'b' :
echo 'STYLING, SPAN OR DIV<br />';
if ($cellContent > '')
$cellContent .= ' ';
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
if ($cellContent > '')
$cellContent .= ' ';
echo 'END OF STYLING, SPAN OR DIV<br />';
break;
case 'hr' :
$this->_flushCell($sheet,$column,$row,$cellContent);
++$row;
if (isset($this->_formats[$child->nodeName])) {
$sheet->getStyle($column.$row)->applyFromArray($this->_formats[$child->nodeName]);
} else {
$cellContent = '----------';
$this->_flushCell($sheet,$column,$row,$cellContent);
}
++$row;
case 'br' :
if ($this->_tableLevel > 0) {
// If we're inside a table, replace with a \n
$cellContent .= "\n";
} else {
// Otherwise flush our existing content and move the row cursor on
$this->_flushCell($sheet,$column,$row,$cellContent);
++$row;
}
echo 'HARD LINE BREAK: ' , '<br />';
break;
case 'a' :
echo 'START OF HYPERLINK: ' , '<br />';
foreach($attributeArray as $attributeName => $attributeValue) {
switch($attributeName) {
case 'href':
echo 'Link to ' , $attributeValue , '<br />';
$sheet->getCell($column.$row)->getHyperlink()->setUrl($attributeValue);
if (isset($this->_formats[$child->nodeName])) {
$sheet->getStyle($column.$row)->applyFromArray($this->_formats[$child->nodeName]);
}
break;
}
}
$cellContent .= ' ';
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
echo 'END OF HYPERLINK:' , '<br />';
break;
case 'h1' :
case 'h2' :
case 'h3' :
case 'h4' :
case 'h5' :
case 'h6' :
case 'ol' :
case 'ul' :
case 'p' :
if ($this->_tableLevel > 0) {
// If we're inside a table, replace with a \n
$cellContent .= "\n";
echo 'LIST ENTRY: ' , '<br />';
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
echo 'END OF LIST ENTRY:' , '<br />';
} else {
if ($cellContent > '') {
$this->_flushCell($sheet,$column,$row,$cellContent);
$row += 2;
}
echo 'START OF PARAGRAPH: ' , '<br />';
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
echo 'END OF PARAGRAPH:' , '<br />';
$this->_flushCell($sheet,$column,$row,$cellContent);
if (isset($this->_formats[$child->nodeName])) {
$sheet->getStyle($column.$row)->applyFromArray($this->_formats[$child->nodeName]);
}
$row += 2;
$column = 'A';
}
break;
case 'li' :
if ($this->_tableLevel > 0) {
// If we're inside a table, replace with a \n
$cellContent .= "\n";
echo 'LIST ENTRY: ' , '<br />';
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
echo 'END OF LIST ENTRY:' , '<br />';
} else {
if ($cellContent > '') {
$this->_flushCell($sheet,$column,$row,$cellContent);
}
++$row;
echo 'LIST ENTRY: ' , '<br />';
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
echo 'END OF LIST ENTRY:' , '<br />';
$this->_flushCell($sheet,$column,$row,$cellContent);
$column = 'A';
}
break;
case 'table' :
$this->_flushCell($sheet,$column,$row,$cellContent);
$column = $this->_setTableStartColumn($column);
echo 'START OF TABLE LEVEL ' , $this->_tableLevel , '<br />';
if ($this->_tableLevel > 1)
--$row;
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
echo 'END OF TABLE LEVEL ' , $this->_tableLevel , '<br />';
$column = $this->_releaseTableStartColumn();
if ($this->_tableLevel > 1) {
++$column;
} else {
++$row;
}
break;
case 'thead' :
case 'tbody' :
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
break;
case 'tr' :
++$row;
$column = $this->_getTableStartColumn();
$cellContent = '';
echo 'START OF TABLE ' , $this->_tableLevel , ' ROW<br />';
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
echo 'END OF TABLE ' , $this->_tableLevel , ' ROW<br />';
break;
case 'th' :
case 'td' :
echo 'START OF TABLE ' , $this->_tableLevel , ' CELL<br />';
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
echo 'END OF TABLE ' , $this->_tableLevel , ' CELL<br />';
$this->_flushCell($sheet,$column,$row,$cellContent);
++$column;
break;
case 'body' :
$row = 1;
$column = 'A';
$content = '';
$this->_tableLevel = 0;
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
break;
default:
$this->_processDomElement($child,$sheet,$row,$column,$cellContent);
}
}
}
}
/**
* Loads PHPExcel from file into PHPExcel instance
*
* @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 " . $pFilename . " for reading! File does not exist.");
}
if (!is_file($pFilename)) {
throw new Exception("Could not open " . $pFilename . " for reading! The given file is not a regular file.");
}
// Create new PHPExcel
while ($objPHPExcel->getSheetCount() <= $this->_sheetIndex) {
$objPHPExcel->createSheet();
}
$objPHPExcel->setActiveSheetIndex( $this->_sheetIndex );
// Create a new DOM object
$dom = new domDocument;
// Load the HTML file into the DOM object
$loaded = $dom->loadHTMLFile($pFilename);
if ($loaded === false) {
throw new Exception('Failed to load ',$pFilename,' as a DOM Document');
}
// Discard white space
$dom->preserveWhiteSpace = false;
$row = 0;
$column = 'A';
$content = '';
$this->_processDomElement($dom,$objPHPExcel->getActiveSheet(),$row,$column,$content);
echo '<hr />';
var_dump($this->_dataArray);
// Return
return $objPHPExcel;
}
/**
* Get sheet index
*
* @return int
*/
public function getSheetIndex() {
return $this->_sheetIndex;
}
/**
* Set sheet index
*
* @param int $pValue Sheet index
* @return PHPExcel_Reader_HTML
*/
public function setSheetIndex($pValue = 0) {
$this->_sheetIndex = $pValue;
return $this;
}
}
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