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