Your IP : 216.73.217.13
<?php
declare(strict_types=1);
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Core\Text;
class TextCropper
{
/**
* Implements "cropHTML" which is a modified "substr" function allowing to limit a string length to a certain number
* of chars (from either start or end of string) and having a pre/postfix applied if the string really was cropped.
*
* Note: Crop is done without properly respecting html tags and entities.
*
* @param string $content The string to perform the operation on
* @param int $numberOfChars Max number of chars of the string. Negative value means cropping from end of string.
* @param string $replacementForEllipsis The pre/postfix string to apply if cropping occurs.
* @param bool $cropToSpace If true then crop will be applied at nearest space.
* @return string The processed input value.
*/
public function crop(string $content, int $numberOfChars, string $replacementForEllipsis, bool $cropToSpace): string
{
if (!$numberOfChars || !(mb_strlen($content, 'utf-8') > abs($numberOfChars))) {
return $content;
}
if ($numberOfChars < 0) {
// cropping from the right side of the content, prepanding replacementForEllipsis
$content = mb_substr($content, $numberOfChars, null, 'utf-8');
$truncatePosition = $cropToSpace ? mb_strpos($content, ' ', 0, 'utf-8') : false;
return $truncatePosition > 0
? $replacementForEllipsis . mb_substr($content, $truncatePosition, null, 'utf-8')
: $replacementForEllipsis . $content;
}
// cropping from the left side of content, appending replacementForEllipsis
$content = mb_substr($content, 0, $numberOfChars, 'utf-8');
$truncatePosition = $cropToSpace ? mb_strrpos($content, ' ', 0, 'utf-8') : false;
return $truncatePosition > 0
? mb_substr($content, 0, $truncatePosition, 'utf-8') . $replacementForEllipsis
: $content . $replacementForEllipsis;
}
}