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General performance improvements, and specific improvements in the CSV Reader

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git-svn-id: https://phpexcel.svn.codeplex.com/svn/trunk@65064 2327b42d-5241-43d6-9e2a-de5ac946f064
This commit is contained in:
Mark Baker
2010-12-09 12:07:50 +00:00
parent 500a8e763e
commit 1fad8bd2dd
23 changed files with 800 additions and 902 deletions
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Classes/PHPExcel/Reader/CSV.php
+40 -33
View File
@@ -50,7 +50,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
* @access private
* @var string
*/
private $_inputEncoding;
private $_inputEncoding = 'UTF-8';
/**
* Delimiter
@@ -58,7 +58,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
* @access private
* @var string
*/
private $_delimiter;
private $_delimiter = ',';
/**
* Enclosure
@@ -66,7 +66,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
* @access private
* @var string
*/
private $_enclosure;
private $_enclosure = '"';
/**
* Line ending
@@ -74,7 +74,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
* @access private
* @var string
*/
private $_lineEnding;
private $_lineEnding = PHP_EOL;
/**
* Sheet index to read
@@ -82,7 +82,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
* @access private
* @var int
*/
private $_sheetIndex;
private $_sheetIndex = 0;
/**
* Load rows contiguously
@@ -90,7 +90,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
* @access private
* @var int
*/
private $_contiguous;
private $_contiguous = false;
/**
@@ -99,7 +99,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
* @access private
* @var int
*/
private $_contiguousRow;
private $_contiguousRow = -1;
/**
* PHPExcel_Reader_IReadFilter instance
@@ -113,14 +113,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
* Create a new PHPExcel_Reader_CSV
*/
public function __construct() {
$this->_inputEncoding = 'UTF-8';
$this->_delimiter = ',';
$this->_enclosure = '"';
$this->_lineEnding = PHP_EOL;
$this->_sheetIndex = 0;
$this->_readFilter = new PHPExcel_Reader_DefaultReadFilter();
$this->_contiguous = false;
$this->_contiguousRow = -1;
} // function __construct()
/**
@@ -236,6 +229,22 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
fgets($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;
}
@@ -244,42 +253,40 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
$this->_enclosure . $this->_enclosure
);
// Loop through file
$currentRow = 0;
if ($this->_contiguousRow == -1) {
$this->_contiguousRow = $objPHPExcel->getActiveSheet()->getHighestRow();
// 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;
}
$rowData = array();
// Loop through each line of the file in turn
while (($rowData = fgetcsv($fileHandle, 0, $this->_delimiter, $this->_enclosure)) !== FALSE) {
++$currentRow;
$rowDataCount = count($rowData);
$columnLetter = 'A';
for ($i = 0; $i < $rowDataCount; ++$i) {
if ($rowData[$i] != '' && $this->_readFilter->readCell($columnLetter, $currentRow)) {
foreach($rowData as $rowDatum) {
if ($rowDatum != '' && $this->_readFilter->readCell($columnLetter, $currentRow)) {
// Unescape enclosures
$rowData[$i] = str_replace($escapeEnclosures, $this->_enclosure, $rowData[$i]);
$rowDatum = str_replace($escapeEnclosures, $this->_enclosure, $rowDatum);
// Convert encoding if necessary
if ($this->_inputEncoding !== 'UTF-8') {
$rowData[$i] = PHPExcel_Shared_String::ConvertEncoding($rowData[$i], 'UTF-8', $this->_inputEncoding);
$rowDatum = PHPExcel_Shared_String::ConvertEncoding($rowDatum, 'UTF-8', $this->_inputEncoding);
}
if ($this->_contiguous) {
// Set cell value
$objPHPExcel->getActiveSheet()->getCell($columnLetter . $this->_contiguousRow)->setValue($rowData[$i]);
} else {
// Set cell value
$objPHPExcel->getActiveSheet()->getCell($columnLetter . $currentRow)->setValue($rowData[$i]);
}
// Set cell value
$objPHPExcel->getActiveSheet()->getCell($columnLetter . $currentRow)->setValue($rowDatum);
}
++$columnLetter;
}
++$this->_contiguousRow;
++$currentRow;
}
// Close file
fclose($fileHandle);
if ($this->_contiguous) {
$this->_contiguousRow = $currentRow;
}
// Return
return $objPHPExcel;
} // function loadIntoExisting()