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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Polyfill\Php83;
/**
* @author Ion Bazan <ion.bazan@gmail.com>
* @author Pierre Ambroise <pierre27.ambroise@gmail.com>
*
* @internal
*/
final class Php83
{
private const JSON_MAX_DEPTH = 0x7FFFFFFF; // see https://www.php.net/manual/en/function.json-decode.php
public static function json_validate(string $json, int $depth = 512, int $flags = 0): bool
{
if (0 !== $flags && \defined('JSON_INVALID_UTF8_IGNORE') && \JSON_INVALID_UTF8_IGNORE !== $flags) {
throw new \ValueError('json_validate(): Argument #3 ($flags) must be a valid flag (allowed flags: JSON_INVALID_UTF8_IGNORE)');
}
if ($depth <= 0) {
throw new \ValueError('json_validate(): Argument #2 ($depth) must be greater than 0');
}
if ($depth > self::JSON_MAX_DEPTH) {
throw new \ValueError(sprintf('json_validate(): Argument #2 ($depth) must be less than %d', self::JSON_MAX_DEPTH));
}
json_decode($json, null, $depth, $flags);
return \JSON_ERROR_NONE === json_last_error();
}
public static function mb_str_pad(string $string, int $length, string $pad_string = ' ', int $pad_type = \STR_PAD_RIGHT, string $encoding = null): string
{
if (!\in_array($pad_type, [\STR_PAD_RIGHT, \STR_PAD_LEFT, \STR_PAD_BOTH], true)) {
throw new \ValueError('mb_str_pad(): Argument #4 ($pad_type) must be STR_PAD_LEFT, STR_PAD_RIGHT, or STR_PAD_BOTH');
}
if (null === $encoding) {
$encoding = mb_internal_encoding();
}
try {
$validEncoding = @mb_check_encoding('', $encoding);
} catch (\ValueError $e) {
throw new \ValueError(sprintf('mb_str_pad(): Argument #5 ($encoding) must be a valid encoding, "%s" given', $encoding));
}
// BC for PHP 7.3 and lower
if (!$validEncoding) {
throw new \ValueError(sprintf('mb_str_pad(): Argument #5 ($encoding) must be a valid encoding, "%s" given', $encoding));
}
if (mb_strlen($pad_string, $encoding) <= 0) {
throw new \ValueError('mb_str_pad(): Argument #3 ($pad_string) must be a non-empty string');
}
$paddingRequired = $length - mb_strlen($string, $encoding);
if ($paddingRequired < 1) {
return $string;
}
switch ($pad_type) {
case \STR_PAD_LEFT:
return mb_substr(str_repeat($pad_string, $paddingRequired), 0, $paddingRequired, $encoding).$string;
case \STR_PAD_RIGHT:
return $string.mb_substr(str_repeat($pad_string, $paddingRequired), 0, $paddingRequired, $encoding);
default:
$leftPaddingLength = floor($paddingRequired / 2);
$rightPaddingLength = $paddingRequired - $leftPaddingLength;
return mb_substr(str_repeat($pad_string, $leftPaddingLength), 0, $leftPaddingLength, $encoding).$string.mb_substr(str_repeat($pad_string, $rightPaddingLength), 0, $rightPaddingLength, $encoding);
}
}
public static function str_increment(string $string): string
{
if ('' === $string) {
throw new \ValueError('str_increment(): Argument #1 ($string) cannot be empty');
}
if (!\preg_match("/^[a-zA-Z0-9]+$/", $string)) {
throw new \ValueError('str_increment(): Argument #1 ($string) must be composed only of alphanumeric ASCII characters');
}
if (\is_numeric($string)) {
$offset = stripos($string, 'e');
if ($offset !== false) {
$char = $string[$offset];
$char++;
$string[$offset] = $char;
$string++;
switch ($string[$offset]) {
case 'f':
$string[$offset] = 'e';
break;
case 'F':
$string[$offset] = 'E';
break;
case 'g':
$string[$offset] = 'f';
break;
case 'G':
$string[$offset] = 'F';
break;
}
return $string;
}
}
return ++$string;
}
public static function str_decrement(string $string): string
{
if ('' === $string) {
throw new \ValueError('str_decrement(): Argument #1 ($string) cannot be empty');
}
if (!\preg_match("/^[a-zA-Z0-9]+$/", $string)) {
throw new \ValueError('str_decrement(): Argument #1 ($string) must be composed only of alphanumeric ASCII characters');
}
if (\preg_match('/\A(?:0[aA0]?|[aA])\z/', $string)) {
throw new \ValueError(sprintf('str_decrement(): Argument #1 ($string) "%s" is out of decrement range', $string));
}
if (!\in_array(substr($string, -1), ['A', 'a', '0'], true)) {
return join('', array_slice(str_split($string), 0, -1)) . chr(ord(substr($string, -1)) - 1);
}
$carry = '';
$decremented = '';
for ($i = strlen($string) - 1; $i >= 0; $i--) {
$char = $string[$i];
switch ($char) {
case 'A':
if ('' !== $carry) {
$decremented = $carry . $decremented;
$carry = '';
}
$carry = 'Z';
break;
case 'a':
if ('' !== $carry) {
$decremented = $carry . $decremented;
$carry = '';
}
$carry = 'z';
break;
case '0':
if ('' !== $carry) {
$decremented = $carry . $decremented;
$carry = '';
}
$carry = '9';
break;
case '1':
if ('' !== $carry) {
$decremented = $carry . $decremented;
$carry = '';
}
break;
default:
if ('' !== $carry) {
$decremented = $carry . $decremented;
$carry = '';
}
if (!\in_array($char, ['A', 'a', '0'], true)) {
$decremented = chr(ord($char) - 1) . $decremented;
}
}
}
return $decremented;
}
}
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