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<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\TextData;
use PhpOffice\PhpSpreadsheet\Calculation\ArrayEnabled;
use PhpOffice\PhpSpreadsheet\Calculation\Exception as CalcExp;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
use PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;
use PhpOffice\PhpSpreadsheet\Cell\DataType;
use PhpOffice\PhpSpreadsheet\Shared\StringHelper;
class Replace
{
use ArrayEnabled;
/**
* REPLACE.
*
* @param mixed $oldText The text string value to modify
* Or can be an array of values
* @param mixed $start Integer offset for start character of the replacement
* Or can be an array of values
* @param mixed $chars Integer number of characters to replace from the start offset
* Or can be an array of values
* @param mixed $newText String to replace in the defined position
* Or can be an array of values
*
* @return array|string
* If an array of values is passed for either of the arguments, then the returned result
* will also be an array with matching dimensions
*/
public static function replace($oldText, $start, $chars, $newText)
{
if (is_array($oldText) || is_array($start) || is_array($chars) || is_array($newText)) {
return self::evaluateArrayArguments([self::class, __FUNCTION__], $oldText, $start, $chars, $newText);
}
try {
$start = Helpers::extractInt($start, 1, 0, true);
$chars = Helpers::extractInt($chars, 0, 0, true);
$oldText = Helpers::extractString($oldText, true);
$newText = Helpers::extractString($newText, true);
$left = StringHelper::substring($oldText, 0, $start - 1);
$right = StringHelper::substring($oldText, $start + $chars - 1, null);
} catch (CalcExp $e) {
return $e->getMessage();
}
$returnValue = $left . $newText . $right;
if (StringHelper::countCharacters($returnValue) > DataType::MAX_STRING_LENGTH) {
$returnValue = ExcelError::VALUE();
}
return $returnValue;
}
/**
* SUBSTITUTE.
*
* @param mixed $text The text string value to modify
* Or can be an array of values
* @param mixed $fromText The string value that we want to replace in $text
* Or can be an array of values
* @param mixed $toText The string value that we want to replace with in $text
* Or can be an array of values
* @param mixed $instance Integer instance Number for the occurrence of frmText to change
* Or can be an array of values
*
* @return array|string
* If an array of values is passed for either of the arguments, then the returned result
* will also be an array with matching dimensions
*/
public static function substitute($text = '', $fromText = '', $toText = '', $instance = null)
{
if (is_array($text) || is_array($fromText) || is_array($toText) || is_array($instance)) {
return self::evaluateArrayArguments([self::class, __FUNCTION__], $text, $fromText, $toText, $instance);
}
try {
$text = Helpers::extractString($text, true);
$fromText = Helpers::extractString($fromText, true);
$toText = Helpers::extractString($toText, true);
if ($instance === null) {
$returnValue = str_replace($fromText, $toText, $text);
} else {
if (is_bool($instance)) {
if ($instance === false || Functions::getCompatibilityMode() !== Functions::COMPATIBILITY_OPENOFFICE) {
return ExcelError::Value();
}
$instance = 1;
}
$instance = Helpers::extractInt($instance, 1, 0, true);
$returnValue = self::executeSubstitution($text, $fromText, $toText, $instance);
}
} catch (CalcExp $e) {
return $e->getMessage();
}
if (StringHelper::countCharacters($returnValue) > DataType::MAX_STRING_LENGTH) {
$returnValue = ExcelError::VALUE();
}
return $returnValue;
}
/**
* @return string
*/
private static function executeSubstitution(string $text, string $fromText, string $toText, int $instance)
{
$pos = -1;
while ($instance > 0) {
$pos = mb_strpos($text, $fromText, $pos + 1, 'UTF-8');
if ($pos === false) {
break;
}
--$instance;
}
if ($pos !== false) {
return Functions::scalar(self::REPLACE($text, ++$pos, StringHelper::countCharacters($fromText), $toText));
}
return $text;
}
}
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