mirror of
https://github.com/retailcrm/mailgun-php.git
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463 lines
15 KiB
PHP
463 lines
15 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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* (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\Component\Yaml;
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use Symfony\Component\Yaml\Exception\ParseException;
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use Symfony\Component\Yaml\Exception\DumpException;
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/**
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* Inline implements a YAML parser/dumper for the YAML inline syntax.
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*
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* @author Fabien Potencier <fabien@symfony.com>
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*/
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class Inline
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{
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const REGEX_QUOTED_STRING = '(?:"([^"\\\\]*(?:\\\\.[^"\\\\]*)*)"|\'([^\']*(?:\'\'[^\']*)*)\')';
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private static $exceptionOnInvalidType = false;
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private static $objectSupport = false;
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/**
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* Converts a YAML string to a PHP array.
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*
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* @param string $value A YAML string
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* @param Boolean $exceptionOnInvalidType true if an exception must be thrown on invalid types (a PHP resource or object), false otherwise
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* @param Boolean $objectSupport true if object support is enabled, false otherwise
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*
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* @return array A PHP array representing the YAML string
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*
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* @throws ParseException
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*/
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public static function parse($value, $exceptionOnInvalidType = false, $objectSupport = false)
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{
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self::$exceptionOnInvalidType = $exceptionOnInvalidType;
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self::$objectSupport = $objectSupport;
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$value = trim($value);
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if (0 == strlen($value)) {
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return '';
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}
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if (function_exists('mb_internal_encoding') && ((int) ini_get('mbstring.func_overload')) & 2) {
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$mbEncoding = mb_internal_encoding();
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mb_internal_encoding('ASCII');
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}
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$i = 0;
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switch ($value[0]) {
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case '[':
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$result = self::parseSequence($value, $i);
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++$i;
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break;
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case '{':
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$result = self::parseMapping($value, $i);
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++$i;
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break;
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default:
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$result = self::parseScalar($value, null, array('"', "'"), $i);
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}
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// some comments are allowed at the end
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if (preg_replace('/\s+#.*$/A', '', substr($value, $i))) {
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throw new ParseException(sprintf('Unexpected characters near "%s".', substr($value, $i)));
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}
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if (isset($mbEncoding)) {
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mb_internal_encoding($mbEncoding);
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}
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return $result;
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}
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/**
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* Dumps a given PHP variable to a YAML string.
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*
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* @param mixed $value The PHP variable to convert
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* @param Boolean $exceptionOnInvalidType true if an exception must be thrown on invalid types (a PHP resource or object), false otherwise
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* @param Boolean $objectSupport true if object support is enabled, false otherwise
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*
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* @return string The YAML string representing the PHP array
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*
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* @throws DumpException When trying to dump PHP resource
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*/
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public static function dump($value, $exceptionOnInvalidType = false, $objectSupport = false)
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{
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switch (true) {
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case is_resource($value):
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if ($exceptionOnInvalidType) {
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throw new DumpException(sprintf('Unable to dump PHP resources in a YAML file ("%s").', get_resource_type($value)));
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}
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return 'null';
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case is_object($value):
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if ($objectSupport) {
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return '!!php/object:'.serialize($value);
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}
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if ($exceptionOnInvalidType) {
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throw new DumpException('Object support when dumping a YAML file has been disabled.');
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}
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return 'null';
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case is_array($value):
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return self::dumpArray($value, $exceptionOnInvalidType, $objectSupport);
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case null === $value:
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return 'null';
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case true === $value:
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return 'true';
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case false === $value:
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return 'false';
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case ctype_digit($value):
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return is_string($value) ? "'$value'" : (int) $value;
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case is_numeric($value):
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$locale = setlocale(LC_NUMERIC, 0);
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if (false !== $locale) {
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setlocale(LC_NUMERIC, 'C');
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}
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$repr = is_string($value) ? "'$value'" : (is_infinite($value) ? str_ireplace('INF', '.Inf', strval($value)) : strval($value));
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if (false !== $locale) {
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setlocale(LC_NUMERIC, $locale);
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}
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return $repr;
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case Escaper::requiresDoubleQuoting($value):
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return Escaper::escapeWithDoubleQuotes($value);
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case Escaper::requiresSingleQuoting($value):
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return Escaper::escapeWithSingleQuotes($value);
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case '' == $value:
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return "''";
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case preg_match(self::getTimestampRegex(), $value):
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case in_array(strtolower($value), array('null', '~', 'true', 'false')):
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return "'$value'";
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default:
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return $value;
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}
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}
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/**
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* Dumps a PHP array to a YAML string.
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*
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* @param array $value The PHP array to dump
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* @param Boolean $exceptionOnInvalidType true if an exception must be thrown on invalid types (a PHP resource or object), false otherwise
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* @param Boolean $objectSupport true if object support is enabled, false otherwise
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*
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* @return string The YAML string representing the PHP array
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*/
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private static function dumpArray($value, $exceptionOnInvalidType, $objectSupport)
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{
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// array
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$keys = array_keys($value);
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if ((1 == count($keys) && '0' == $keys[0])
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|| (count($keys) > 1 && array_reduce($keys, function ($v, $w) { return (integer) $v + $w; }, 0) == count($keys) * (count($keys) - 1) / 2)
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) {
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$output = array();
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foreach ($value as $val) {
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$output[] = self::dump($val, $exceptionOnInvalidType, $objectSupport);
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}
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return sprintf('[%s]', implode(', ', $output));
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}
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// mapping
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$output = array();
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foreach ($value as $key => $val) {
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$output[] = sprintf('%s: %s', self::dump($key, $exceptionOnInvalidType, $objectSupport), self::dump($val, $exceptionOnInvalidType, $objectSupport));
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}
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return sprintf('{ %s }', implode(', ', $output));
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}
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/**
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* Parses a scalar to a YAML string.
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*
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* @param scalar $scalar
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* @param string $delimiters
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* @param array $stringDelimiters
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* @param integer &$i
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* @param Boolean $evaluate
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*
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* @return string A YAML string
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*
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* @throws ParseException When malformed inline YAML string is parsed
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*/
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public static function parseScalar($scalar, $delimiters = null, $stringDelimiters = array('"', "'"), &$i = 0, $evaluate = true)
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{
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if (in_array($scalar[$i], $stringDelimiters)) {
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// quoted scalar
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$output = self::parseQuotedScalar($scalar, $i);
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if (null !== $delimiters) {
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$tmp = ltrim(substr($scalar, $i), ' ');
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if (!in_array($tmp[0], $delimiters)) {
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throw new ParseException(sprintf('Unexpected characters (%s).', substr($scalar, $i)));
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}
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}
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} else {
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// "normal" string
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if (!$delimiters) {
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$output = substr($scalar, $i);
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$i += strlen($output);
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// remove comments
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if (false !== $strpos = strpos($output, ' #')) {
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$output = rtrim(substr($output, 0, $strpos));
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}
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} elseif (preg_match('/^(.+?)('.implode('|', $delimiters).')/', substr($scalar, $i), $match)) {
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$output = $match[1];
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$i += strlen($output);
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} else {
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throw new ParseException(sprintf('Malformed inline YAML string (%s).', $scalar));
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}
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$output = $evaluate ? self::evaluateScalar($output) : $output;
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}
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return $output;
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}
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/**
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* Parses a quoted scalar to YAML.
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*
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* @param string $scalar
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* @param integer &$i
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*
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* @return string A YAML string
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*
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* @throws ParseException When malformed inline YAML string is parsed
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*/
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private static function parseQuotedScalar($scalar, &$i)
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{
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if (!preg_match('/'.self::REGEX_QUOTED_STRING.'/Au', substr($scalar, $i), $match)) {
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throw new ParseException(sprintf('Malformed inline YAML string (%s).', substr($scalar, $i)));
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}
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$output = substr($match[0], 1, strlen($match[0]) - 2);
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$unescaper = new Unescaper();
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if ('"' == $scalar[$i]) {
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$output = $unescaper->unescapeDoubleQuotedString($output);
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} else {
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$output = $unescaper->unescapeSingleQuotedString($output);
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}
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$i += strlen($match[0]);
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return $output;
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}
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/**
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* Parses a sequence to a YAML string.
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*
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* @param string $sequence
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* @param integer &$i
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*
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* @return string A YAML string
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*
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* @throws ParseException When malformed inline YAML string is parsed
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*/
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private static function parseSequence($sequence, &$i = 0)
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{
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$output = array();
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$len = strlen($sequence);
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$i += 1;
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// [foo, bar, ...]
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while ($i < $len) {
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switch ($sequence[$i]) {
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case '[':
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// nested sequence
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$output[] = self::parseSequence($sequence, $i);
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break;
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case '{':
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// nested mapping
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$output[] = self::parseMapping($sequence, $i);
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break;
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case ']':
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return $output;
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case ',':
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case ' ':
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break;
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default:
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$isQuoted = in_array($sequence[$i], array('"', "'"));
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$value = self::parseScalar($sequence, array(',', ']'), array('"', "'"), $i);
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if (!$isQuoted && false !== strpos($value, ': ')) {
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// embedded mapping?
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try {
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$value = self::parseMapping('{'.$value.'}');
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} catch (\InvalidArgumentException $e) {
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// no, it's not
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}
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}
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$output[] = $value;
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--$i;
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}
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++$i;
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}
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throw new ParseException(sprintf('Malformed inline YAML string %s', $sequence));
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}
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/**
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* Parses a mapping to a YAML string.
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*
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* @param string $mapping
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* @param integer &$i
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*
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* @return string A YAML string
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*
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* @throws ParseException When malformed inline YAML string is parsed
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*/
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private static function parseMapping($mapping, &$i = 0)
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{
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$output = array();
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$len = strlen($mapping);
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$i += 1;
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// {foo: bar, bar:foo, ...}
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while ($i < $len) {
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switch ($mapping[$i]) {
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case ' ':
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case ',':
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++$i;
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continue 2;
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case '}':
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return $output;
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}
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// key
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$key = self::parseScalar($mapping, array(':', ' '), array('"', "'"), $i, false);
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// value
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$done = false;
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while ($i < $len) {
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switch ($mapping[$i]) {
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case '[':
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// nested sequence
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$output[$key] = self::parseSequence($mapping, $i);
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$done = true;
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break;
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case '{':
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// nested mapping
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$output[$key] = self::parseMapping($mapping, $i);
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$done = true;
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break;
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case ':':
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case ' ':
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break;
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default:
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$output[$key] = self::parseScalar($mapping, array(',', '}'), array('"', "'"), $i);
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$done = true;
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--$i;
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}
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++$i;
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if ($done) {
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continue 2;
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}
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}
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}
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throw new ParseException(sprintf('Malformed inline YAML string %s', $mapping));
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}
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/**
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* Evaluates scalars and replaces magic values.
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*
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* @param string $scalar
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*
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* @return string A YAML string
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*/
|
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private static function evaluateScalar($scalar)
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{
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$scalar = trim($scalar);
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|
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|
||
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switch (true) {
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case 'null' == strtolower($scalar):
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||
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case '' == $scalar:
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||
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case '~' == $scalar:
|
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|
|
return null;
|
||
|
|
case 0 === strpos($scalar, '!str'):
|
||
|
|
return (string) substr($scalar, 5);
|
||
|
|
case 0 === strpos($scalar, '! '):
|
||
|
|
return intval(self::parseScalar(substr($scalar, 2)));
|
||
|
|
case 0 === strpos($scalar, '!!php/object:'):
|
||
|
|
if (self::$objectSupport) {
|
||
|
|
return unserialize(substr($scalar, 13));
|
||
|
|
}
|
||
|
|
|
||
|
|
if (self::$exceptionOnInvalidType) {
|
||
|
|
throw new ParseException('Object support when parsing a YAML file has been disabled.');
|
||
|
|
}
|
||
|
|
|
||
|
|
return null;
|
||
|
|
case ctype_digit($scalar):
|
||
|
|
$raw = $scalar;
|
||
|
|
$cast = intval($scalar);
|
||
|
|
|
||
|
|
return '0' == $scalar[0] ? octdec($scalar) : (((string) $raw == (string) $cast) ? $cast : $raw);
|
||
|
|
case '-' === $scalar[0] && ctype_digit(substr($scalar, 1)):
|
||
|
|
$raw = $scalar;
|
||
|
|
$cast = intval($scalar);
|
||
|
|
|
||
|
|
return '0' == $scalar[1] ? octdec($scalar) : (((string) $raw == (string) $cast) ? $cast : $raw);
|
||
|
|
case 'true' === strtolower($scalar):
|
||
|
|
return true;
|
||
|
|
case 'false' === strtolower($scalar):
|
||
|
|
return false;
|
||
|
|
case is_numeric($scalar):
|
||
|
|
return '0x' == $scalar[0].$scalar[1] ? hexdec($scalar) : floatval($scalar);
|
||
|
|
case 0 == strcasecmp($scalar, '.inf'):
|
||
|
|
case 0 == strcasecmp($scalar, '.NaN'):
|
||
|
|
return -log(0);
|
||
|
|
case 0 == strcasecmp($scalar, '-.inf'):
|
||
|
|
return log(0);
|
||
|
|
case preg_match('/^(-|\+)?[0-9,]+(\.[0-9]+)?$/', $scalar):
|
||
|
|
return floatval(str_replace(',', '', $scalar));
|
||
|
|
case preg_match(self::getTimestampRegex(), $scalar):
|
||
|
|
return strtotime($scalar);
|
||
|
|
default:
|
||
|
|
return (string) $scalar;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets a regex that matches a YAML date.
|
||
|
|
*
|
||
|
|
* @return string The regular expression
|
||
|
|
*
|
||
|
|
* @see http://www.yaml.org/spec/1.2/spec.html#id2761573
|
||
|
|
*/
|
||
|
|
private static function getTimestampRegex()
|
||
|
|
{
|
||
|
|
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]))?))?)?
|
||
|
|
$~x
|
||
|
|
EOF;
|
||
|
|
}
|
||
|
|
}
|