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<?php
/**
*----------------------------------------------------------------------------
* iC Library Library by Jooml!C, for Joomla!
*----------------------------------------------------------------------------
* @version 2.0.1 2022-07-30
*
* @package iC Library
* @subpackage String
* @link https://www.joomlic.com
*
* @author Cyril Rezé
* @copyright (c) 2013-2024 Cyril Rezé / iCagenda. All rights reserved.
* @license GNU General Public License version 3 or later; see LICENSE.txt
*
* @since 1.0.0
*----------------------------------------------------------------------------
*/
// No direct access to this file
defined('_JEXEC') or die();
// PHP mbstring and iconv local configuration
// Check if mbstring extension is loaded and attempt to load it if not present except for windows
//if (extension_loaded('mbstring'))
//{
// Make sure to suppress the output in case ini_set is disabled
// @ini_set('mbstring.internal_encoding', 'UTF-8');
// @ini_set('mbstring.http_input', 'UTF-8');
// @ini_set('mbstring.http_output', 'UTF-8');
//}
// Same for iconv
//if (function_exists('iconv'))
//{
// These are settings that can be set inside code
// iconv_set_encoding("internal_encoding", "UTF-8");
// iconv_set_encoding("input_encoding", "UTF-8");
// iconv_set_encoding("output_encoding", "UTF-8");
//}
/**
* Include the utf8 package
*/
//jimport('phputf8.utf8');
//jimport('phputf8.strcasecmp');
/**
* class iCString
*
* String handling class for utf-8 data
* Wraps the phputf8 library
* All functions assume the validity of utf-8 strings.
*/
abstract class iCString
{
/**
* Increment styles.
*
* @var array
* @since 1.0.0
*/
protected static $incrementStyles = array(
'default' => array(
array('#\((\d+)\)$#', '#\(\d+\)$#'),
array(' ( %d)', '(%d)'),
),
'dash' => array(
'#-(\d+)$#',
'-%d'
),
'underscore' => array(
'#_(\d+)$#',
'_%d'
),
);
/**
* Increments a trailing number in a string.
*
* Used to easily create distinct labels when copying objects. The method has the following styles:
*
* default: "Label" becomes "Label (2)"
* dash: "Label" becomes "Label-2"
* underscore: "Label" becomes "Label_2"
*
* @param string $string The source string.
* @param string $style The style (default|dash|underscore).
* @param integer $n If supplied, this number is used for the copy, otherwise it is the 'next' number.
*
* @return string The incremented string.
*
* @since 1.0.0
*/
public static function increment($string, $style = 'default', $n = 0)
{
$styleSpec = isset(self::$incrementStyles[$style]) ? self::$incrementStyles[$style] : self::$incrementStyles['default'];
// Regular expression search and replace patterns.
if (is_array($styleSpec[0]))
{
$rxSearch = $styleSpec[0][0];
$rxReplace = $styleSpec[0][1];
}
else
{
$rxSearch = $rxReplace = $styleSpec[0];
}
// New and old (existing) sprintf formats.
if (is_array($styleSpec[1]))
{
$newFormat = $styleSpec[1][0];
$oldFormat = $styleSpec[1][1];
}
else
{
$newFormat = $oldFormat = $styleSpec[1];
}
// Check if we are incrementing an existing pattern, or appending a new one.
if (preg_match($rxSearch, $string, $matches))
{
$n = empty($n) ? ($matches[1] + 1) : $n;
$string = preg_replace($rxReplace, sprintf($oldFormat, $n), $string);
}
else
{
$n = empty($n) ? 2 : $n;
$string .= sprintf($newFormat, $n);
}
return $string;
}
/**
* Tests whether a string is serialized before attempting to unserialize it
*
* Author : doorknob
*
* @since 1.0.0
*/
public static function isSerialized($str)
{
if (!is_string($str))
{
return false;
}
return ($str == serialize(false) || @unserialize($str) !== false);
}
/**
* Uppercase first letter of the first word of a string (utf-8)
*
* @since 1.2.4
*/
public static function mb_ucfirst($str)
{
if (preg_match('/[a-z]/ui', $str[0]))
return ucfirst($str);
$first = mb_strtoupper($str[0].$str[1], 'utf8');
$str[0] = $first[0];
$str[1] = $first[1];
return $str;
}
}