<?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\Component\String;
use Symfony\Component\String\Exception\ExceptionInterface;
use Symfony\Component\String\Exception\InvalidArgumentException;
use Symfony\Component\String\Exception\RuntimeException;
/**
* Represents a binary-safe string of bytes.
*
* @author Nicolas Grekas <p@tchwork.com>
* @author Hugo Hamon <hugohamon@neuf.fr>
*
* @throws ExceptionInterface
*/
class ByteString extends AbstractString
{
private const ALPHABET_ALPHANUMERIC = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz';
public function __construct(string $string = '')
{
$this->string = $string;
}
/*
* The following method was derived from code of the Hack Standard Library (v4.40 - 2020-05-03)
*
* https://github.com/hhvm/hsl/blob/80a42c02f036f72a42f0415e80d6b847f4bf62d5/src/random/private.php#L16
*
* Code subject to the MIT license (https://github.com/hhvm/hsl/blob/master/LICENSE).
*
* Copyright (c) 2004-2020, Facebook, Inc. (https://www.facebook.com/)
*/
public static function fromRandom(int $length = 16, string $alphabet = null): self
{
if ($length <= 0) {
throw new InvalidArgumentException(sprintf('A strictly positive length is expected, "%d" given.', $length));
}
$alphabet = $alphabet ?? self::ALPHABET_ALPHANUMERIC;
$alphabetSize = \strlen($alphabet);
$bits = (int) ceil(log($alphabetSize, 2.0));
if ($bits <= 0 || $bits > 56) {
throw new InvalidArgumentException('The length of the alphabet must in the [2^1, 2^56] range.');
}
$ret = '';
while ($length > 0) {
$urandomLength = (int) ceil(2 * $length * $bits / 8.0);
$data = random_bytes($urandomLength);
$unpackedData = 0;
$unpackedBits = 0;
for ($i = 0; $i < $urandomLength && $length > 0; ++$i) {
// Unpack 8 bits
$unpackedData = ($unpackedData << 8) | \ord($data[$i]);
$unpackedBits += 8;
// While we have enough bits to select a character from the alphabet, keep
// consuming the random data
for (; $unpackedBits >= $bits && $length > 0; $unpackedBits -= $bits) {
$index = ($unpackedData & ((1 << $bits) - 1));
$unpackedData >>= $bits;
// Unfortunately, the alphabet size is not necessarily a power of two.
// Worst case, it is 2^k + 1, which means we need (k+1) bits and we
// have around a 50% chance of missing as k gets larger
if ($index < $alphabetSize) {
$ret .= $alphabet[$index];
--$length;
}
}
}
}
return new static($ret);
}
public function bytesAt(int $offset): array
{
$str = $this->string[$offset] ?? '';
return '' === $str ? [] : [\ord($str)];
}
public function append(string ...$suffix): static
{
$str = clone $this;
$str->string .= 1 >= \count($suffix) ? ($suffix[0] ?? '') : implode('', $suffix);
return $str;
}
public function camel(): static
{
$str = clone $this;
$parts = explode(' ', trim(ucwords(preg_replace('/[^a-zA-Z0-9\x7f-\xff]++/', ' ', $this->string))));
$parts[0] = 1 !== \strlen($parts[0]) && ctype_upper($parts[0]) ? $parts[0] : lcfirst($parts[0]);
$str->string = implode('', $parts);
return $str;
}
public function chunk(int $length = 1): array
{
if (1 > $length) {
throw new InvalidArgumentException('The chunk length must be greater than zero.');
}
if ('' === $this->string) {
return [];
}
$str = clone $this;
$chunks = [];
foreach (str_split($this->string, $length) as $chunk) {
$str->string = $chunk;
$chunks[] = clone $str;
}
return $chunks;
}
public function endsWith(string|iterable|AbstractString $suffix): bool
{
if ($suffix instanceof AbstractString) {
$suffix = $suffix->string;
} elseif (!\is_string($suffix)) {
return parent::endsWith($suffix);
}
return '' !== $suffix && \strlen($this->string) >= \strlen($suffix) && 0 === substr_compare($this->string, $suffix, -\strlen($suffix), null, $this->ignoreCase);
}
public function equalsTo(string|iterable|AbstractString $string): bool
{
if ($string instanceof AbstractString) {
$string = $string->string;
} elseif (!\is_string($string)) {
return parent::equalsTo($string);
}
if ('' !== $string && $this->ignoreCase) {
return 0 === strcasecmp($string, $this->string);
}
return $string === $this->string;
}
public function folded(): static
{
$str = clone $this;
$str->string = strtolower($str->string);
return $str;
}
public function indexOf(string|iterable|AbstractString $needle, int $offset = 0): ?int
{
if ($needle instanceof AbstractString) {
$needle = $needle->string;
} elseif (!\is_string($needle)) {
return parent::indexOf($needle, $offset);
}
if ('' === $needle) {
return null;
}
$i = $this->ignoreCase ? stripos($this->string, $needle, $offset) : strpos($this->string, $needle, $offset);
return false === $i ? null : $i;
}
public function indexOfLast(string|iterable|AbstractString $needle, int $offset = 0): ?int
{
if ($needle instanceof AbstractString) {
$needle = $needle->string;
} elseif (!\is_string($needle)) {
return parent::indexOfLast($needle, $offset);
}
if ('' === $needle) {
return null;
}
$i = $this->ignoreCase ? strripos($this->string, $needle, $offset) : strrpos($this->string, $needle, $offset);
return false === $i ? null : $i;
}
public function isUtf8(): bool
{
return '' === $this->string || preg_match('//u', $this->string);
}
public function join(array $strings, string $lastGlue = null): static
{
$str = clone $this;
$tail = null !== $lastGlue && 1 < \count($strings) ? $lastGlue.array_pop($strings) : '';
$str->string = implode($this->string, $strings).$tail;
return $str;
}
public function length(): int
{
return \strlen($this->string);
}
public function lower(): static
{
$str = clone $this;
$str->string = strtolower($str->string);
return $str;
}
public function match(string $regexp, int $flags = 0, int $offset = 0): array
{
$match = ((\PREG_PATTERN_ORDER | \PREG_SET_ORDER) & $flags) ? 'preg_match_all' : 'preg_match';
if ($this->ignoreCase) {
$regexp .= 'i';
}
set_error_handler(static function ($t, $m) { throw new InvalidArgumentException($m); });
try {
if (false === $match($regexp, $this->string, $matches, $flags | \PREG_UNMATCHED_AS_NULL, $offset)) {
$lastError = preg_last_error();
foreach (get_defined_constants(true)['pcre'] as $k => $v) {
if ($lastError === $v && '_ERROR' === substr($k, -6)) {
throw new RuntimeException('Matching failed with '.$k.'.');
}
}
throw new RuntimeException('Matching failed with unknown error code.');
}
} finally {
restore_error_handler();
}
return $matches;
}
public function padBoth(int $length, string $padStr = ' '): static
{
$str = clone $this;
$str->string = str_pad($this->string, $length, $padStr, \STR_PAD_BOTH);
return $str;
}
public function padEnd(int $length, string $padStr = ' '): static
{
$str = clone $this;
$str->string = str_pad($this->string, $length, $padStr, \STR_PAD_RIGHT);
return $str;
}
public function padStart(int $length, string $padStr = ' '): static
{
$str = clone $this;
$str->string = str_pad($this->string, $length, $padStr, \STR_PAD_LEFT);
return $str;
}
public function prepend(string ...$prefix): static
{
$str = clone $this;
$str->string = (1 >= \count($prefix) ? ($prefix[0] ?? '') : implode('', $prefix)).$str->string;
return $str;
}
public function replace(string $from, string $to): static
{
$str = clone $this;
if ('' !== $from) {
$str->string = $this->ignoreCase ? str_ireplace($from, $to, $this->string) : str_replace($from, $to, $this->string);
}
return $str;
}
public function replaceMatches(string $fromRegexp, string|callable $to): static
{
if ($this->ignoreCase) {
$fromRegexp .= 'i';
}
$replace = \is_array($to) || $to instanceof \Closure ? 'preg_replace_callback' : 'preg_replace';
set_error_handler(static function ($t, $m) { throw new InvalidArgumentException($m); });
try {
if (null === $string = $replace($fromRegexp, $to, $this->string)) {
$lastError = preg_last_error();
foreach (get_defined_constants(true)['pcre'] as $k => $v) {
if ($lastError === $v && '_ERROR' === substr($k, -6)) {
throw new RuntimeException('Matching failed with '.$k.'.');
}
}
throw new RuntimeException('Matching failed with unknown error code.');
}
} finally {
restore_error_handler();
}
$str = clone $this;
$str->string = $string;
return $str;
}
public function reverse(): static
{
$str = clone $this;
$str->string = strrev($str->string);
return $str;
}
public function slice(int $start = 0, int $length = null): static
{
$str = clone $this;
$str->string = (string) substr($this->string, $start, $length ?? \PHP_INT_MAX);
return $str;
}
public function snake(): static
{
$str = $this->camel();
$str->string = strtolower(preg_replace(['/([A-Z]+)([A-Z][a-z])/', '/([a-z\d])([A-Z])/'], '\1_\2', $str->string));
return $str;
}
public function splice(string $replacement, int $start = 0, int $length = null): static
{
$str = clone $this;
$str->string = substr_replace($this->string, $replacement, $start, $length ?? \PHP_INT_MAX);
return $str;
}
public function split(string $delimiter, int $limit = null, int $flags = null): array
{
if (1 > $limit = $limit ?? \PHP_INT_MAX) {
throw new InvalidArgumentException('Split limit must be a positive integer.');
}
if ('' === $delimiter) {
throw new InvalidArgumentException('Split delimiter is empty.');
}
if (null !== $flags) {
return parent::split($delimiter, $limit, $flags);
}
$str = clone $this;
$chunks = $this->ignoreCase
? preg_split('{'.preg_quote($delimiter).'}iD', $this->string, $limit)
: explode($delimiter, $this->string, $limit);
foreach ($chunks as &$chunk) {
$str->string = $chunk;
$chunk = clone $str;
}
return $chunks;
}
public function startsWith(string|iterable|AbstractString $prefix): bool
{
if ($prefix instanceof AbstractString) {
$prefix = $prefix->string;
} elseif (!\is_string($prefix)) {
return parent::startsWith($prefix);
}
return '' !== $prefix && 0 === ($this->ignoreCase ? strncasecmp($this->string, $prefix, \strlen($prefix)) : strncmp($this->string, $prefix, \strlen($prefix)));
}
public function title(bool $allWords = false): static
{
$str = clone $this;
$str->string = $allWords ? ucwords($str->string) : ucfirst($str->string);
return $str;
}
public function toUnicodeString(string $fromEncoding = null): UnicodeString
{
return new UnicodeString($this->toCodePointString($fromEncoding)->string);
}
public function toCodePointString(string $fromEncoding = null): CodePointString
{
$u = new CodePointString();
if (\in_array($fromEncoding, [null, 'utf8', 'utf-8', 'UTF8', 'UTF-8'], true) && preg_match('//u', $this->string)) {
$u->string = $this->string;
return $u;
}
set_error_handler(static function ($t, $m) { throw new InvalidArgumentException($m); });
try {
try {
$validEncoding = false !== mb_detect_encoding($this->string, $fromEncoding ?? 'Windows-1252', true);
} catch (InvalidArgumentException $e) {
if (!\function_exists('iconv')) {
throw $e;
}
$u->string = iconv($fromEncoding ?? 'Windows-1252', 'UTF-8', $this->string);
return $u;
}
} finally {
restore_error_handler();
}
if (!$validEncoding) {
throw new InvalidArgumentException(sprintf('Invalid "%s" string.', $fromEncoding ?? 'Windows-1252'));
}
$u->string = mb_convert_encoding($this->string, 'UTF-8', $fromEncoding ?? 'Windows-1252');
return $u;
}
public function trim(string $chars = " \t\n\r\0\x0B\x0C"): static
{
$str = clone $this;
$str->string = trim($str->string, $chars);
return $str;
}
public function trimEnd(string $chars = " \t\n\r\0\x0B\x0C"): static
{
$str = clone $this;
$str->string = rtrim($str->string, $chars);
return $str;
}
public function trimStart(string $chars = " \t\n\r\0\x0B\x0C"): static
{
$str = clone $this;
$str->string = ltrim($str->string, $chars);
return $str;
}
public function upper(): static
{
$str = clone $this;
$str->string = strtoupper($str->string);
return $str;
}
public function width(bool $ignoreAnsiDecoration = true): int
{
$string = preg_match('//u', $this->string) ? $this->string : preg_replace('/[\x80-\xFF]/', '?', $this->string);
return (new CodePointString($string))->width($ignoreAnsiDecoration);
}
}
At NFC Pay, we strive to provide a seamless and satisfactory experience with our services. This Refund Policy outlines the circumstances under which refunds may be issued for transactions made through our platform. Please read this policy carefully to understand your rights regarding refunds.
1. Eligibility for Refunds
Refunds may be considered under the following circumstances:
2. Non-Refundable Situations
Refunds will generally not be issued in the following situations:
3. Refund Process
To request a refund, please follow these steps:
4. Refund Exceptions
Certain transactions may be subject to specific terms and conditions, including non-refundable fees or charges. Please review the terms associated with each transaction carefully, as some fees may not be eligible for refunds.
5. Modifications to the Refund Policy
NFC Pay reserves the right to modify this Refund Policy at any time. Changes will be communicated through updates on our website and app, and the effective date will be updated accordingly. We encourage you to review this policy periodically to stay informed about our refund practices.
By using NFC Pay, you agree to this Refund Policy and understand the terms under which refunds may be issued. Our goal is to ensure a fair and transparent refund process, providing you with confidence and peace of mind when using our services.