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<?php
namespace PhpOffice\PhpSpreadsheet\Reader;
use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\Shared\StringHelper;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Style\Border;
class Slk extends BaseReader
{
/**
* Input encoding.
*
* @var string
*/
private $inputEncoding = 'ANSI';
/**
* Sheet index to read.
*
* @var int
*/
private $sheetIndex = 0;
/**
* Formats.
*
* @var array
*/
private $formats = [];
/**
* Format Count.
*
* @var int
*/
private $format = 0;
/**
* Create a new SYLK Reader instance.
*/
public function __construct()
{
$this->readFilter = new DefaultReadFilter();
}
/**
* Validate that the current file is a SYLK file.
*
* @param string $pFilename
*
* @return bool
*/
public function canRead($pFilename)
{
// Check if file exists
try {
$this->openFile($pFilename);
} catch (Exception $e) {
return false;
}
// Read sample data (first 2 KB will do)
$data = fread($this->fileHandle, 2048);
// Count delimiters in file
$delimiterCount = substr_count($data, ';');
$hasDelimiter = $delimiterCount > 0;
// Analyze first line looking for ID; signature
$lines = explode("\n", $data);
$hasId = substr($lines[0], 0, 4) === 'ID;P';
fclose($this->fileHandle);
return $hasDelimiter && $hasId;
}
/**
* Set input encoding.
*
* @param string $pValue Input encoding, eg: 'ANSI'
*
* @return Slk
*/
public function setInputEncoding($pValue)
{
$this->inputEncoding = $pValue;
return $this;
}
/**
* Get input encoding.
*
* @return string
*/
public function getInputEncoding()
{
return $this->inputEncoding;
}
/**
* Return worksheet info (Name, Last Column Letter, Last Column Index, Total Rows, Total Columns).
*
* @param string $pFilename
*
* @throws Exception
*
* @return array
*/
public function listWorksheetInfo($pFilename)
{
// Open file
if (!$this->canRead($pFilename)) {
throw new Exception($pFilename . ' is an Invalid Spreadsheet file.');
}
$this->openFile($pFilename);
$fileHandle = $this->fileHandle;
rewind($fileHandle);
$worksheetInfo = [];
$worksheetInfo[0]['worksheetName'] = 'Worksheet';
$worksheetInfo[0]['lastColumnLetter'] = 'A';
$worksheetInfo[0]['lastColumnIndex'] = 0;
$worksheetInfo[0]['totalRows'] = 0;
$worksheetInfo[0]['totalColumns'] = 0;
// loop through one row (line) at a time in the file
$rowIndex = 0;
while (($rowData = fgets($fileHandle)) !== false) {
$columnIndex = 0;
// convert SYLK encoded $rowData to UTF-8
$rowData = StringHelper::SYLKtoUTF8($rowData);
// explode each row at semicolons while taking into account that literal semicolon (;)
// is escaped like this (;;)
$rowData = explode("\t", str_replace('¤', ';', str_replace(';', "\t", str_replace(';;', '¤', rtrim($rowData)))));
$dataType = array_shift($rowData);
if ($dataType == 'C') {
// Read cell value data
foreach ($rowData as $rowDatum) {
switch ($rowDatum[0]) {
case 'C':
case 'X':
$columnIndex = substr($rowDatum, 1) - 1;
break;
case 'R':
case 'Y':
$rowIndex = substr($rowDatum, 1);
break;
}
$worksheetInfo[0]['totalRows'] = max($worksheetInfo[0]['totalRows'], $rowIndex);
$worksheetInfo[0]['lastColumnIndex'] = max($worksheetInfo[0]['lastColumnIndex'], $columnIndex);
}
}
}
$worksheetInfo[0]['lastColumnLetter'] = Coordinate::stringFromColumnIndex($worksheetInfo[0]['lastColumnIndex'] + 1);
$worksheetInfo[0]['totalColumns'] = $worksheetInfo[0]['lastColumnIndex'] + 1;
// Close file
fclose($fileHandle);
return $worksheetInfo;
}
/**
* Loads PhpSpreadsheet from file.
*
* @param string $pFilename
*
* @throws Exception
*
* @return Spreadsheet
*/
public function load($pFilename)
{
// Create new Spreadsheet
$spreadsheet = new Spreadsheet();
// Load into this instance
return $this->loadIntoExisting($pFilename, $spreadsheet);
}
/**
* Loads PhpSpreadsheet from file into PhpSpreadsheet instance.
*
* @param string $pFilename
* @param Spreadsheet $spreadsheet
*
* @throws Exception
*
* @return Spreadsheet
*/
public function loadIntoExisting($pFilename, Spreadsheet $spreadsheet)
{
// Open file
if (!$this->canRead($pFilename)) {
throw new Exception($pFilename . ' is an Invalid Spreadsheet file.');
}
$this->openFile($pFilename);
$fileHandle = $this->fileHandle;
rewind($fileHandle);
// Create new Worksheets
while ($spreadsheet->getSheetCount() <= $this->sheetIndex) {
$spreadsheet->createSheet();
}
$spreadsheet->setActiveSheetIndex($this->sheetIndex);
$fromFormats = ['\-', '\ '];
$toFormats = ['-', ' '];
// Loop through file
$column = $row = '';
// loop through one row (line) at a time in the file
while (($rowData = fgets($fileHandle)) !== false) {
// convert SYLK encoded $rowData to UTF-8
$rowData = StringHelper::SYLKtoUTF8($rowData);
// explode each row at semicolons while taking into account that literal semicolon (;)
// is escaped like this (;;)
$rowData = explode("\t", str_replace('¤', ';', str_replace(';', "\t", str_replace(';;', '¤', rtrim($rowData)))));
$dataType = array_shift($rowData);
// Read shared styles
if ($dataType == 'P') {
$formatArray = [];
foreach ($rowData as $rowDatum) {
switch ($rowDatum[0]) {
case 'P':
$formatArray['numberFormat']['formatCode'] = str_replace($fromFormats, $toFormats, substr($rowDatum, 1));
break;
case 'E':
case 'F':
$formatArray['font']['name'] = substr($rowDatum, 1);
break;
case 'L':
$formatArray['font']['size'] = substr($rowDatum, 1);
break;
case 'S':
$styleSettings = substr($rowDatum, 1);
$iMax = strlen($styleSettings);
for ($i = 0; $i < $iMax; ++$i) {
switch ($styleSettings[$i]) {
case 'I':
$formatArray['font']['italic'] = true;
break;
case 'D':
$formatArray['font']['bold'] = true;
break;
case 'T':
$formatArray['borders']['top']['borderStyle'] = Border::BORDER_THIN;
break;
case 'B':
$formatArray['borders']['bottom']['borderStyle'] = Border::BORDER_THIN;
break;
case 'L':
$formatArray['borders']['left']['borderStyle'] = Border::BORDER_THIN;
break;
case 'R':
$formatArray['borders']['right']['borderStyle'] = Border::BORDER_THIN;
break;
}
}
break;
}
}
$this->formats['P' . $this->format++] = $formatArray;
// Read cell value data
} elseif ($dataType == 'C') {
$hasCalculatedValue = false;
$cellData = $cellDataFormula = '';
foreach ($rowData as $rowDatum) {
switch ($rowDatum[0]) {
case 'C':
case 'X':
$column = substr($rowDatum, 1);
break;
case 'R':
case 'Y':
$row = substr($rowDatum, 1);
break;
case 'K':
$cellData = substr($rowDatum, 1);
break;
case 'E':
$cellDataFormula = '=' . substr($rowDatum, 1);
// Convert R1C1 style references to A1 style references (but only when not quoted)
$temp = explode('"', $cellDataFormula);
$key = false;
foreach ($temp as &$value) {
// Only count/replace in alternate array entries
if ($key = !$key) {
preg_match_all('/(R(\[?-?\d*\]?))(C(\[?-?\d*\]?))/', $value, $cellReferences, PREG_SET_ORDER + PREG_OFFSET_CAPTURE);
// Reverse the matches array, otherwise all our offsets will become incorrect if we modify our way
// through the formula from left to right. Reversing means that we work right to left.through
// the formula
$cellReferences = array_reverse($cellReferences);
// Loop through each R1C1 style reference in turn, converting it to its A1 style equivalent,
// then modify the formula to use that new reference
foreach ($cellReferences as $cellReference) {
$rowReference = $cellReference[2][0];
// Empty R reference is the current row
if ($rowReference == '') {
$rowReference = $row;
}
// Bracketed R references are relative to the current row
if ($rowReference[0] == '[') {
$rowReference = $row + trim($rowReference, '[]');
}
$columnReference = $cellReference[4][0];
// Empty C reference is the current column
if ($columnReference == '') {
$columnReference = $column;
}
// Bracketed C references are relative to the current column
if ($columnReference[0] == '[') {
$columnReference = $column + trim($columnReference, '[]');
}
$A1CellReference = Coordinate::stringFromColumnIndex($columnReference) . $rowReference;
$value = substr_replace($value, $A1CellReference, $cellReference[0][1], strlen($cellReference[0][0]));
}
}
}
unset($value);
// Then rebuild the formula string
$cellDataFormula = implode('"', $temp);
$hasCalculatedValue = true;
break;
}
}
$columnLetter = Coordinate::stringFromColumnIndex($column);
$cellData = Calculation::unwrapResult($cellData);
// Set cell value
$spreadsheet->getActiveSheet()->getCell($columnLetter . $row)->setValue(($hasCalculatedValue) ? $cellDataFormula : $cellData);
if ($hasCalculatedValue) {
$cellData = Calculation::unwrapResult($cellData);
$spreadsheet->getActiveSheet()->getCell($columnLetter . $row)->setCalculatedValue($cellData);
}
// Read cell formatting
} elseif ($dataType == 'F') {
$formatStyle = $columnWidth = $styleSettings = '';
$styleData = [];
foreach ($rowData as $rowDatum) {
switch ($rowDatum[0]) {
case 'C':
case 'X':
$column = substr($rowDatum, 1);
break;
case 'R':
case 'Y':
$row = substr($rowDatum, 1);
break;
case 'P':
$formatStyle = $rowDatum;
break;
case 'W':
list($startCol, $endCol, $columnWidth) = explode(' ', substr($rowDatum, 1));
break;
case 'S':
$styleSettings = substr($rowDatum, 1);
$iMax = strlen($styleSettings);
for ($i = 0; $i < $iMax; ++$i) {
switch ($styleSettings[$i]) {
case 'I':
$styleData['font']['italic'] = true;
break;
case 'D':
$styleData['font']['bold'] = true;
break;
case 'T':
$styleData['borders']['top']['borderStyle'] = Border::BORDER_THIN;
break;
case 'B':
$styleData['borders']['bottom']['borderStyle'] = Border::BORDER_THIN;
break;
case 'L':
$styleData['borders']['left']['borderStyle'] = Border::BORDER_THIN;
break;
case 'R':
$styleData['borders']['right']['borderStyle'] = Border::BORDER_THIN;
break;
}
}
break;
}
}
if (($formatStyle > '') && ($column > '') && ($row > '')) {
$columnLetter = Coordinate::stringFromColumnIndex($column);
if (isset($this->formats[$formatStyle])) {
$spreadsheet->getActiveSheet()->getStyle($columnLetter . $row)->applyFromArray($this->formats[$formatStyle]);
}
}
if ((!empty($styleData)) && ($column > '') && ($row > '')) {
$columnLetter = Coordinate::stringFromColumnIndex($column);
$spreadsheet->getActiveSheet()->getStyle($columnLetter . $row)->applyFromArray($styleData);
}
if ($columnWidth > '') {
if ($startCol == $endCol) {
$startCol = Coordinate::stringFromColumnIndex($startCol);
$spreadsheet->getActiveSheet()->getColumnDimension($startCol)->setWidth($columnWidth);
} else {
$startCol = Coordinate::stringFromColumnIndex($startCol);
$endCol = Coordinate::stringFromColumnIndex($endCol);
$spreadsheet->getActiveSheet()->getColumnDimension($startCol)->setWidth($columnWidth);
do {
$spreadsheet->getActiveSheet()->getColumnDimension(++$startCol)->setWidth($columnWidth);
} while ($startCol != $endCol);
}
}
} else {
foreach ($rowData as $rowDatum) {
switch ($rowDatum[0]) {
case 'C':
case 'X':
$column = substr($rowDatum, 1);
break;
case 'R':
case 'Y':
$row = substr($rowDatum, 1);
break;
}
}
}
}
// Close file
fclose($fileHandle);
// Return
return $spreadsheet;
}
/**
* Get sheet index.
*
* @return int
*/
public function getSheetIndex()
{
return $this->sheetIndex;
}
/**
* Set sheet index.
*
* @param int $pValue Sheet index
*
* @return Slk
*/
public function setSheetIndex($pValue)
{
$this->sheetIndex = $pValue;
return $this;
}
}