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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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