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Now excel can be generated under iso-8859-1 (safer) based on the

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$CFG->excelisofiles (true/false) value. It allows iso-8859-1
compatible sites to use better Excel generation. MDL-7993.
This commit is contained in:
stronk7 2006-12-25 19:51:17 +00:00
parent aef5c10d7c
commit 2f078622af
1 changed files with 20 additions and 5 deletions
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25
lib/excellib.class.php
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@ -41,6 +41,7 @@ require_once 'Spreadsheet/Excel/Writer.php';
class MoodleExcelWorkbook {
var $pear_excel_workbook;
var $iso_88591_output;
/* Constructs one Moodle Workbook.
* @param string $filename The name of the file
@ -50,7 +51,12 @@ class MoodleExcelWorkbook {
/// Internally, create one PEAR Spreadsheet_Excel_Writer_Workbook class
$this->pear_excel_workbook = new Spreadsheet_Excel_Writer($filename);
/// Prepare it to accept UTF-16LE data and to encode it properly
$this->pear_excel_workbook->setVersion(8);
if (empty($CFG->excelisofiles)) { /// Only if don't want to use iso-8859-1 stronger output
$this->pear_excel_workbook->setVersion(8);
$this->iso_88591_output = false;
} else { /// We want iso-8859-1 output
$this->iso_88591_output = true;
}
/// Choose our temporary directory - see MDL-7176, found by paulo.matos
make_upload_directory('temp/excel', false);
$this->pear_excel_workbook->setTempDir($CFG->dataroot.'/temp/excel');
@ -61,7 +67,7 @@ class MoodleExcelWorkbook {
*/
function &add_worksheet($name = '') {
/// Create the Moodle Worksheet. Returns one pointer to it
$ws =& new MoodleExcelWorksheet ($name, $this->pear_excel_workbook);
$ws =& new MoodleExcelWorksheet ($name, $this->pear_excel_workbook, $this->iso_88591_output);
return $ws;
}
@ -101,16 +107,21 @@ class MoodleExcelWorkbook {
class MoodleExcelWorksheet {
var $pear_excel_worksheet;
var $iso_88591_output;
/* Constructs one Moodle Worksheet.
* @param string $filename The name of the file
* @param object $workbook The internal PEAR Workbook onject we are creating
*/
function MoodleExcelWorksheet($name, &$workbook) {
function MoodleExcelWorksheet($name, &$workbook, $iso_88591_output=false) {
/// Internally, add one sheet to the workbook
$this->pear_excel_worksheet =& $workbook->addWorksheet($name);
$this->iso_88591_output = $iso_88591_output;
/// Set encoding to UTF-16LE
$this->pear_excel_worksheet->setInputEncoding('UTF-16LE');
if (!$this->iso_88591_output) { /// Only if don't want to use iso-8859-1 stronger output
$this->pear_excel_worksheet->setInputEncoding('UTF-16LE');
}
}
/* Write one string somewhere in the worksheet
@ -125,7 +136,11 @@ class MoodleExcelWorksheet {
/// Loading the textlib singleton instance. We are going to need it.
$textlib = textlib_get_instance();
/// Convert the text from its original encoding to UTF-16LE
$str = $textlib->convert($str, 'utf-8', 'utf-16le');
if (!$this->iso_88591_output) { /// Only if don't want to use iso-8859-1 stronger output
$str = $textlib->convert($str, 'utf-8', 'utf-16le');
} else { /// else, convert to iso-8859-1
$str = $textlib->convert($str, 'utf-8', 'iso-8859-1');
}
/// Add the string safely to the PEAR Worksheet
$this->pear_excel_worksheet->writeString($row, $col, $str, $format);
}