vendor/symfony/yaml/Inline.php line 37
<?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\Yaml;use Symfony\Component\Yaml\Exception\DumpException;use Symfony\Component\Yaml\Exception\ParseException;use Symfony\Component\Yaml\Tag\TaggedValue;/*** Inline implements a YAML parser/dumper for the YAML inline syntax.** @author Fabien Potencier <fabien@symfony.com>** @internal*/class Inline{public const REGEX_QUOTED_STRING = '(?:"([^"\\\\]*+(?:\\\\.[^"\\\\]*+)*+)"|\'([^\']*+(?:\'\'[^\']*+)*+)\')';public static int $parsedLineNumber = -1;public static ?string $parsedFilename = null;private static bool $exceptionOnInvalidType = false;private static bool $objectSupport = false;private static bool $objectForMap = false;private static bool $constantSupport = false;public static function initialize(int $flags, int $parsedLineNumber = null, string $parsedFilename = null){self::$exceptionOnInvalidType = (bool) (Yaml::PARSE_EXCEPTION_ON_INVALID_TYPE & $flags);self::$objectSupport = (bool) (Yaml::PARSE_OBJECT & $flags);self::$objectForMap = (bool) (Yaml::PARSE_OBJECT_FOR_MAP & $flags);self::$constantSupport = (bool) (Yaml::PARSE_CONSTANT & $flags);self::$parsedFilename = $parsedFilename;if (null !== $parsedLineNumber) {self::$parsedLineNumber = $parsedLineNumber;}}/*** Converts a YAML string to a PHP value.** @param int $flags A bit field of Yaml::PARSE_* constants to customize the YAML parser behavior* @param array $references Mapping of variable names to values** @throws ParseException*/public static function parse(string $value = null, int $flags = 0, array &$references = []): mixed{self::initialize($flags);$value = trim($value);if ('' === $value) {return '';}$i = 0;$tag = self::parseTag($value, $i, $flags);switch ($value[$i]) {case '[':$result = self::parseSequence($value, $flags, $i, $references);++$i;break;case '{':$result = self::parseMapping($value, $flags, $i, $references);++$i;break;default:$result = self::parseScalar($value, $flags, null, $i, true, $references);}// some comments are allowed at the endif (preg_replace('/\s*#.*$/A', '', substr($value, $i))) {throw new ParseException(sprintf('Unexpected characters near "%s".', substr($value, $i)), self::$parsedLineNumber + 1, $value, self::$parsedFilename);}if (null !== $tag && '' !== $tag) {return new TaggedValue($tag, $result);}return $result;}/*** Dumps a given PHP variable to a YAML string.** @param mixed $value The PHP variable to convert* @param int $flags A bit field of Yaml::DUMP_* constants to customize the dumped YAML string** @throws DumpException When trying to dump PHP resource*/public static function dump(mixed $value, int $flags = 0): string{switch (true) {case \is_resource($value):if (Yaml::DUMP_EXCEPTION_ON_INVALID_TYPE & $flags) {throw new DumpException(sprintf('Unable to dump PHP resources in a YAML file ("%s").', get_resource_type($value)));}return self::dumpNull($flags);case $value instanceof \DateTimeInterface:return $value->format('c');case $value instanceof \UnitEnum:return sprintf('!php/const %s::%s', $value::class, $value->name);case \is_object($value):if ($value instanceof TaggedValue) {return '!'.$value->getTag().' '.self::dump($value->getValue(), $flags);}if (Yaml::DUMP_OBJECT & $flags) {return '!php/object '.self::dump(serialize($value));}if (Yaml::DUMP_OBJECT_AS_MAP & $flags && ($value instanceof \stdClass || $value instanceof \ArrayObject)) {return self::dumpHashArray($value, $flags);}if (Yaml::DUMP_EXCEPTION_ON_INVALID_TYPE & $flags) {throw new DumpException('Object support when dumping a YAML file has been disabled.');}return self::dumpNull($flags);case \is_array($value):return self::dumpArray($value, $flags);case null === $value:return self::dumpNull($flags);case true === $value:return 'true';case false === $value:return 'false';case \is_int($value):return $value;case is_numeric($value) && false === strpbrk($value, "\f\n\r\t\v"):$locale = setlocale(\LC_NUMERIC, 0);if (false !== $locale) {setlocale(\LC_NUMERIC, 'C');}if (\is_float($value)) {$repr = (string) $value;if (is_infinite($value)) {$repr = str_ireplace('INF', '.Inf', $repr);} elseif (floor($value) == $value && $repr == $value) {// Preserve float data type since storing a whole number will result in integer value.if (!str_contains($repr, 'E')) {$repr = $repr.'.0';}}} else {$repr = \is_string($value) ? "'$value'" : (string) $value;}if (false !== $locale) {setlocale(\LC_NUMERIC, $locale);}return $repr;case '' == $value:return "''";case self::isBinaryString($value):return '!!binary '.base64_encode($value);case Escaper::requiresDoubleQuoting($value):return Escaper::escapeWithDoubleQuotes($value);case Escaper::requiresSingleQuoting($value):$singleQuoted = Escaper::escapeWithSingleQuotes($value);if (!str_contains($value, "'")) {return $singleQuoted;}// Attempt double-quoting the string instead to see if it's more efficient.$doubleQuoted = Escaper::escapeWithDoubleQuotes($value);return \strlen($doubleQuoted) < \strlen($singleQuoted) ? $doubleQuoted : $singleQuoted;case Parser::preg_match('{^[0-9]+[_0-9]*$}', $value):case Parser::preg_match(self::getHexRegex(), $value):case Parser::preg_match(self::getTimestampRegex(), $value):return Escaper::escapeWithSingleQuotes($value);default:return $value;}}/*** Check if given array is hash or just normal indexed array.*/public static function isHash(array|\ArrayObject|\stdClass $value): bool{if ($value instanceof \stdClass || $value instanceof \ArrayObject) {return true;}$expectedKey = 0;foreach ($value as $key => $val) {if ($key !== $expectedKey++) {return true;}}return false;}/*** Dumps a PHP array to a YAML string.** @param array $value The PHP array to dump* @param int $flags A bit field of Yaml::DUMP_* constants to customize the dumped YAML string*/private static function dumpArray(array $value, int $flags): string{// arrayif (($value || Yaml::DUMP_EMPTY_ARRAY_AS_SEQUENCE & $flags) && !self::isHash($value)) {$output = [];foreach ($value as $val) {$output[] = self::dump($val, $flags);}return sprintf('[%s]', implode(', ', $output));}return self::dumpHashArray($value, $flags);}/*** Dumps hash array to a YAML string.** @param array|\ArrayObject|\stdClass $value The hash array to dump* @param int $flags A bit field of Yaml::DUMP_* constants to customize the dumped YAML string*/private static function dumpHashArray(array|\ArrayObject|\stdClass $value, int $flags): string{$output = [];foreach ($value as $key => $val) {$output[] = sprintf('%s: %s', self::dump($key, $flags), self::dump($val, $flags));}return sprintf('{ %s }', implode(', ', $output));}private static function dumpNull(int $flags): string{if (Yaml::DUMP_NULL_AS_TILDE & $flags) {return '~';}return 'null';}/*** Parses a YAML scalar.** @throws ParseException When malformed inline YAML string is parsed*/public static function parseScalar(string $scalar, int $flags = 0, array $delimiters = null, int &$i = 0, bool $evaluate = true, array &$references = [], bool &$isQuoted = null): mixed{if (\in_array($scalar[$i], ['"', "'"], true)) {// quoted scalar$isQuoted = true;$output = self::parseQuotedScalar($scalar, $i);if (null !== $delimiters) {$tmp = ltrim(substr($scalar, $i), " \n");if ('' === $tmp) {throw new ParseException(sprintf('Unexpected end of line, expected one of "%s".', implode('', $delimiters)), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}if (!\in_array($tmp[0], $delimiters)) {throw new ParseException(sprintf('Unexpected characters (%s).', substr($scalar, $i)), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}}} else {// "normal" string$isQuoted = false;if (!$delimiters) {$output = substr($scalar, $i);$i += \strlen($output);// remove commentsif (Parser::preg_match('/[ \t]+#/', $output, $match, \PREG_OFFSET_CAPTURE)) {$output = substr($output, 0, $match[0][1]);}} elseif (Parser::preg_match('/^(.*?)('.implode('|', $delimiters).')/', substr($scalar, $i), $match)) {$output = $match[1];$i += \strlen($output);$output = trim($output);} else {throw new ParseException(sprintf('Malformed inline YAML string: "%s".', $scalar), self::$parsedLineNumber + 1, null, self::$parsedFilename);}// a non-quoted string cannot start with @ or ` (reserved) nor with a scalar indicator (| or >)if ($output && ('@' === $output[0] || '`' === $output[0] || '|' === $output[0] || '>' === $output[0] || '%' === $output[0])) {throw new ParseException(sprintf('The reserved indicator "%s" cannot start a plain scalar; you need to quote the scalar.', $output[0]), self::$parsedLineNumber + 1, $output, self::$parsedFilename);}if ($evaluate) {$output = self::evaluateScalar($output, $flags, $references, $isQuoted);}}return $output;}/*** Parses a YAML quoted scalar.** @throws ParseException When malformed inline YAML string is parsed*/private static function parseQuotedScalar(string $scalar, int &$i = 0): string{if (!Parser::preg_match('/'.self::REGEX_QUOTED_STRING.'/Au', substr($scalar, $i), $match)) {throw new ParseException(sprintf('Malformed inline YAML string: "%s".', substr($scalar, $i)), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}$output = substr($match[0], 1, -1);$unescaper = new Unescaper();if ('"' == $scalar[$i]) {$output = $unescaper->unescapeDoubleQuotedString($output);} else {$output = $unescaper->unescapeSingleQuotedString($output);}$i += \strlen($match[0]);return $output;}/*** Parses a YAML sequence.** @throws ParseException When malformed inline YAML string is parsed*/private static function parseSequence(string $sequence, int $flags, int &$i = 0, array &$references = []): array{$output = [];$len = \strlen($sequence);++$i;// [foo, bar, ...]while ($i < $len) {if (']' === $sequence[$i]) {return $output;}if (',' === $sequence[$i] || ' ' === $sequence[$i]) {++$i;continue;}$tag = self::parseTag($sequence, $i, $flags);switch ($sequence[$i]) {case '[':// nested sequence$value = self::parseSequence($sequence, $flags, $i, $references);break;case '{':// nested mapping$value = self::parseMapping($sequence, $flags, $i, $references);break;default:$value = self::parseScalar($sequence, $flags, [',', ']'], $i, null === $tag, $references, $isQuoted);// the value can be an array if a reference has been resolved to an array varif (\is_string($value) && !$isQuoted && str_contains($value, ': ')) {// embedded mapping?try {$pos = 0;$value = self::parseMapping('{'.$value.'}', $flags, $pos, $references);} catch (\InvalidArgumentException) {// no, it's not}}if (!$isQuoted && \is_string($value) && '' !== $value && '&' === $value[0] && Parser::preg_match(Parser::REFERENCE_PATTERN, $value, $matches)) {$references[$matches['ref']] = $matches['value'];$value = $matches['value'];}--$i;}if (null !== $tag && '' !== $tag) {$value = new TaggedValue($tag, $value);}$output[] = $value;++$i;}throw new ParseException(sprintf('Malformed inline YAML string: "%s".', $sequence), self::$parsedLineNumber + 1, null, self::$parsedFilename);}/*** Parses a YAML mapping.** @throws ParseException When malformed inline YAML string is parsed*/private static function parseMapping(string $mapping, int $flags, int &$i = 0, array &$references = []): array|\stdClass{$output = [];$len = \strlen($mapping);++$i;$allowOverwrite = false;// {foo: bar, bar:foo, ...}while ($i < $len) {switch ($mapping[$i]) {case ' ':case ',':case "\n":++$i;continue 2;case '}':if (self::$objectForMap) {return (object) $output;}return $output;}// key$offsetBeforeKeyParsing = $i;$isKeyQuoted = \in_array($mapping[$i], ['"', "'"], true);$key = self::parseScalar($mapping, $flags, [':', ' '], $i, false);if ($offsetBeforeKeyParsing === $i) {throw new ParseException('Missing mapping key.', self::$parsedLineNumber + 1, $mapping);}if ('!php/const' === $key || '!php/enum' === $key) {$key .= ' '.self::parseScalar($mapping, $flags, [':'], $i, false);$key = self::evaluateScalar($key, $flags);}if (false === $i = strpos($mapping, ':', $i)) {break;}if (!$isKeyQuoted) {$evaluatedKey = self::evaluateScalar($key, $flags, $references);if ('' !== $key && $evaluatedKey !== $key && !\is_string($evaluatedKey) && !\is_int($evaluatedKey)) {throw new ParseException('Implicit casting of incompatible mapping keys to strings is not supported. Quote your evaluable mapping keys instead.', self::$parsedLineNumber + 1, $mapping);}}if (!$isKeyQuoted && (!isset($mapping[$i + 1]) || !\in_array($mapping[$i + 1], [' ', ',', '[', ']', '{', '}', "\n"], true))) {throw new ParseException('Colons must be followed by a space or an indication character (i.e. " ", ",", "[", "]", "{", "}").', self::$parsedLineNumber + 1, $mapping);}if ('<<' === $key) {$allowOverwrite = true;}while ($i < $len) {if (':' === $mapping[$i] || ' ' === $mapping[$i] || "\n" === $mapping[$i]) {++$i;continue;}$tag = self::parseTag($mapping, $i, $flags);switch ($mapping[$i]) {case '[':// nested sequence$value = self::parseSequence($mapping, $flags, $i, $references);// Spec: Keys MUST be unique; first one wins.// Parser cannot abort this mapping earlier, since lines// are processed sequentially.// But overwriting is allowed when a merge node is used in current block.if ('<<' === $key) {foreach ($value as $parsedValue) {$output += $parsedValue;}} elseif ($allowOverwrite || !isset($output[$key])) {if (null !== $tag) {$output[$key] = new TaggedValue($tag, $value);} else {$output[$key] = $value;}} elseif (isset($output[$key])) {throw new ParseException(sprintf('Duplicate key "%s" detected.', $key), self::$parsedLineNumber + 1, $mapping);}break;case '{':// nested mapping$value = self::parseMapping($mapping, $flags, $i, $references);// Spec: Keys MUST be unique; first one wins.// Parser cannot abort this mapping earlier, since lines// are processed sequentially.// But overwriting is allowed when a merge node is used in current block.if ('<<' === $key) {$output += $value;} elseif ($allowOverwrite || !isset($output[$key])) {if (null !== $tag) {$output[$key] = new TaggedValue($tag, $value);} else {$output[$key] = $value;}} elseif (isset($output[$key])) {throw new ParseException(sprintf('Duplicate key "%s" detected.', $key), self::$parsedLineNumber + 1, $mapping);}break;default:$value = self::parseScalar($mapping, $flags, [',', '}', "\n"], $i, null === $tag, $references, $isValueQuoted);// Spec: Keys MUST be unique; first one wins.// Parser cannot abort this mapping earlier, since lines// are processed sequentially.// But overwriting is allowed when a merge node is used in current block.if ('<<' === $key) {$output += $value;} elseif ($allowOverwrite || !isset($output[$key])) {if (!$isValueQuoted && \is_string($value) && '' !== $value && '&' === $value[0] && Parser::preg_match(Parser::REFERENCE_PATTERN, $value, $matches)) {$references[$matches['ref']] = $matches['value'];$value = $matches['value'];}if (null !== $tag) {$output[$key] = new TaggedValue($tag, $value);} else {$output[$key] = $value;}} elseif (isset($output[$key])) {throw new ParseException(sprintf('Duplicate key "%s" detected.', $key), self::$parsedLineNumber + 1, $mapping);}--$i;}++$i;continue 2;}}throw new ParseException(sprintf('Malformed inline YAML string: "%s".', $mapping), self::$parsedLineNumber + 1, null, self::$parsedFilename);}/*** Evaluates scalars and replaces magic values.** @throws ParseException when object parsing support was disabled and the parser detected a PHP object or when a reference could not be resolved*/private static function evaluateScalar(string $scalar, int $flags, array &$references = [], bool &$isQuotedString = null): mixed{$isQuotedString = false;$scalar = trim($scalar);if (str_starts_with($scalar, '*')) {if (false !== $pos = strpos($scalar, '#')) {$value = substr($scalar, 1, $pos - 2);} else {$value = substr($scalar, 1);}// an unquoted *if (false === $value || '' === $value) {throw new ParseException('A reference must contain at least one character.', self::$parsedLineNumber + 1, $value, self::$parsedFilename);}if (!\array_key_exists($value, $references)) {throw new ParseException(sprintf('Reference "%s" does not exist.', $value), self::$parsedLineNumber + 1, $value, self::$parsedFilename);}return $references[$value];}$scalarLower = strtolower($scalar);switch (true) {case 'null' === $scalarLower:case '' === $scalar:case '~' === $scalar:return null;case 'true' === $scalarLower:return true;case 'false' === $scalarLower:return false;case '!' === $scalar[0]:switch (true) {case str_starts_with($scalar, '!!str '):$s = (string) substr($scalar, 6);if (\in_array($s[0] ?? '', ['"', "'"], true)) {$isQuotedString = true;$s = self::parseQuotedScalar($s);}return $s;case str_starts_with($scalar, '! '):return substr($scalar, 2);case str_starts_with($scalar, '!php/object'):if (self::$objectSupport) {if (!isset($scalar[12])) {throw new ParseException('Missing value for tag "!php/object".', self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}return unserialize(self::parseScalar(substr($scalar, 12)));}if (self::$exceptionOnInvalidType) {throw new ParseException('Object support when parsing a YAML file has been disabled.', self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}return null;case str_starts_with($scalar, '!php/const'):if (self::$constantSupport) {if (!isset($scalar[11])) {throw new ParseException('Missing value for tag "!php/const".', self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}$i = 0;if (\defined($const = self::parseScalar(substr($scalar, 11), 0, null, $i, false))) {return \constant($const);}throw new ParseException(sprintf('The constant "%s" is not defined.', $const), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}if (self::$exceptionOnInvalidType) {throw new ParseException(sprintf('The string "%s" could not be parsed as a constant. Did you forget to pass the "Yaml::PARSE_CONSTANT" flag to the parser?', $scalar), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}return null;case str_starts_with($scalar, '!php/enum'):if (self::$constantSupport) {if (!isset($scalar[11])) {throw new ParseException('Missing value for tag "!php/enum".', self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}$i = 0;$enum = self::parseScalar(substr($scalar, 10), 0, null, $i, false);if ($useValue = str_ends_with($enum, '->value')) {$enum = substr($enum, 0, -7);}if (!\defined($enum)) {throw new ParseException(sprintf('The enum "%s" is not defined.', $enum), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}$value = \constant($enum);if (!$value instanceof \UnitEnum) {throw new ParseException(sprintf('The string "%s" is not the name of a valid enum.', $enum), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}if (!$useValue) {return $value;}if (!$value instanceof \BackedEnum) {throw new ParseException(sprintf('The enum "%s" defines no value next to its name.', $enum), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}return $value->value;}if (self::$exceptionOnInvalidType) {throw new ParseException(sprintf('The string "%s" could not be parsed as an enum. Did you forget to pass the "Yaml::PARSE_CONSTANT" flag to the parser?', $scalar), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}return null;case str_starts_with($scalar, '!!float '):return (float) substr($scalar, 8);case str_starts_with($scalar, '!!binary '):return self::evaluateBinaryScalar(substr($scalar, 9));}throw new ParseException(sprintf('The string "%s" could not be parsed as it uses an unsupported built-in tag.', $scalar), self::$parsedLineNumber, $scalar, self::$parsedFilename);case preg_match('/^(?:\+|-)?0o(?P<value>[0-7_]++)$/', $scalar, $matches):$value = str_replace('_', '', $matches['value']);if ('-' === $scalar[0]) {return -octdec($value);}return octdec($value);case \in_array($scalar[0], ['+', '-', '.'], true) || is_numeric($scalar[0]):if (Parser::preg_match('{^[+-]?[0-9][0-9_]*$}', $scalar)) {$scalar = str_replace('_', '', $scalar);}switch (true) {case ctype_digit($scalar):case '-' === $scalar[0] && ctype_digit(substr($scalar, 1)):$cast = (int) $scalar;return ($scalar === (string) $cast) ? $cast : $scalar;case is_numeric($scalar):case Parser::preg_match(self::getHexRegex(), $scalar):$scalar = str_replace('_', '', $scalar);return '0x' === $scalar[0].$scalar[1] ? hexdec($scalar) : (float) $scalar;case '.inf' === $scalarLower:case '.nan' === $scalarLower:return -log(0);case '-.inf' === $scalarLower:return log(0);case Parser::preg_match('/^(-|\+)?[0-9][0-9_]*(\.[0-9_]+)?$/', $scalar):return (float) str_replace('_', '', $scalar);case Parser::preg_match(self::getTimestampRegex(), $scalar):// When no timezone is provided in the parsed date, YAML spec says we must assume UTC.$time = new \DateTimeImmutable($scalar, new \DateTimeZone('UTC'));if (Yaml::PARSE_DATETIME & $flags) {return $time;}try {if (false !== $scalar = $time->getTimestamp()) {return $scalar;}} catch (\ValueError) {// no-op}return $time->format('U');}}return (string) $scalar;}private static function parseTag(string $value, int &$i, int $flags): ?string{if ('!' !== $value[$i]) {return null;}$tagLength = strcspn($value, " \t\n[]{},", $i + 1);$tag = substr($value, $i + 1, $tagLength);$nextOffset = $i + $tagLength + 1;$nextOffset += strspn($value, ' ', $nextOffset);if ('' === $tag && (!isset($value[$nextOffset]) || \in_array($value[$nextOffset], [']', '}', ','], true))) {throw new ParseException('Using the unquoted scalar value "!" is not supported. You must quote it.', self::$parsedLineNumber + 1, $value, self::$parsedFilename);}// Is followed by a scalar and is a built-in tagif ('' !== $tag && (!isset($value[$nextOffset]) || !\in_array($value[$nextOffset], ['[', '{'], true)) && ('!' === $tag[0] || \in_array($tag, ['str', 'php/const', 'php/enum', 'php/object'], true))) {// Manage in {@link self::evaluateScalar()}return null;}$i = $nextOffset;// Built-in tagsif ('' !== $tag && '!' === $tag[0]) {throw new ParseException(sprintf('The built-in tag "!%s" is not implemented.', $tag), self::$parsedLineNumber + 1, $value, self::$parsedFilename);}if ('' !== $tag && !isset($value[$i])) {throw new ParseException(sprintf('Missing value for tag "%s".', $tag), self::$parsedLineNumber + 1, $value, self::$parsedFilename);}if ('' === $tag || Yaml::PARSE_CUSTOM_TAGS & $flags) {return $tag;}throw new ParseException(sprintf('Tags support is not enabled. Enable the "Yaml::PARSE_CUSTOM_TAGS" flag to use "!%s".', $tag), self::$parsedLineNumber + 1, $value, self::$parsedFilename);}public static function evaluateBinaryScalar(string $scalar): string{$parsedBinaryData = self::parseScalar(preg_replace('/\s/', '', $scalar));if (0 !== (\strlen($parsedBinaryData) % 4)) {throw new ParseException(sprintf('The normalized base64 encoded data (data without whitespace characters) length must be a multiple of four (%d bytes given).', \strlen($parsedBinaryData)), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}if (!Parser::preg_match('#^[A-Z0-9+/]+={0,2}$#i', $parsedBinaryData)) {throw new ParseException(sprintf('The base64 encoded data (%s) contains invalid characters.', $parsedBinaryData), self::$parsedLineNumber + 1, $scalar, self::$parsedFilename);}return base64_decode($parsedBinaryData, true);}private static function isBinaryString(string $value): bool{return !preg_match('//u', $value) || preg_match('/[^\x00\x07-\x0d\x1B\x20-\xff]/', $value);}/*** Gets a regex that matches a YAML date.** @see http://www.yaml.org/spec/1.2/spec.html#id2761573*/private static function getTimestampRegex(): string{return <<<EOF~^(?P<year>[0-9][0-9][0-9][0-9])-(?P<month>[0-9][0-9]?)-(?P<day>[0-9][0-9]?)(?:(?:[Tt]|[ \t]+)(?P<hour>[0-9][0-9]?):(?P<minute>[0-9][0-9]):(?P<second>[0-9][0-9])(?:\.(?P<fraction>[0-9]*))?(?:[ \t]*(?P<tz>Z|(?P<tz_sign>[-+])(?P<tz_hour>[0-9][0-9]?)(?::(?P<tz_minute>[0-9][0-9]))?))?)?$~xEOF;}/*** Gets a regex that matches a YAML number in hexadecimal notation.*/private static function getHexRegex(): string{return '~^0x[0-9a-f_]++$~i';}}