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* This file is part of the symfony package.
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* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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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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* YamlSfInline implements a YAML parser/dumper for the YAML inline syntax.
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* @author Fabien Potencier <fabien.potencier@symfony-project.com>
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* @version SVN: $Id: YamlSfInline.class.php 9186 2008-05-22 15:19:18Z FabianLange $
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class Doctrine_Parser_YamlSf_Inline
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* Load YAML into a PHP array.
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* @return array PHP array
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static public function load($value)
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$value = trim($value);
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if (0 == strlen($value))
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return self::parseSequence($value);
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return self::parseMapping($value);
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return self::parseScalar($value);
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* Dumps PHP array to YAML.
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static public function dump($value)
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case is_resource($value):
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throw new InvalidArgumentException('Unable to dump PHP resources in a YAML file.');
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case is_object($value):
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return '!!php/object:'.serialize($value);
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case is_array($value):
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return self::dumpArray($value);
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case false === $value:
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case ctype_digit($value):
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return is_string($value) ? "'$value'" : (int) $value;
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case is_numeric($value):
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return is_infinite($value) ? str_ireplace('INF', '.Inf', strval($value)) : (is_string($value) ? "'$value'" : $value);
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case false !== strpos($value, "\n"):
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return sprintf('"%s"', str_replace(array('"', "\n", "\r"), array('\\"', '\n', ''), $value));
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case preg_match('/[ \s \' " \: \{ \} \[ \] , & \*]/x', $value):
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return sprintf("'%s'", str_replace('\'', '\'\'', $value));
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case preg_match(self::getTimestampRegex(), $value):
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case in_array(strtolower($value), array('true', 'on', '+', 'yes', 'y')):
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case in_array(strtolower($value), array('false', 'off', '-', 'no', 'n')):
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* Dumps PHP array to YAML
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* @param array The array to dump
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static protected function dumpArray($value)
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$keys = array_keys($value);
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(1 == count($keys) && '0' == $keys[0])
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(count($keys) > 1 && array_reduce($keys, create_function('$v,$w', 'return (integer) $v + $w;'), 0) == count($keys) * (count($keys) - 1) / 2))
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foreach ($value as $val)
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$output[] = self::dump($val);
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return sprintf('[%s]', implode(', ', $output));
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foreach ($value as $key => $val)
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$output[] = sprintf('%s: %s', self::dump($key), self::dump($val));
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return sprintf('{ %s }', implode(', ', $output));
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* Parses scalar to yaml
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* @param scalar $scalar
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* @param string $delimiters
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* @param array String delimiter
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* @param boolean $evaluate
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* @return string YAML
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static public function parseScalar($scalar, $delimiters = null, $stringDelimiters = array('"', "'"), &$i = 0, $evaluate = true)
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if (in_array($scalar[$i], $stringDelimiters))
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$output = self::parseQuotedScalar($scalar, $i);
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// skip next delimiter
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$output = substr($scalar, $i);
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$i += strlen($output);
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if (false !== $strpos = strpos($output, ' #'))
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$output = rtrim(substr($output, 0, $strpos));
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else if (preg_match('/^(.+?)('.implode('|', $delimiters).')/', substr($scalar, $i), $match))
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$i += strlen($output);
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throw new InvalidArgumentException(sprintf('Malformed inline YAML string (%s).', $scalar));
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$output = $evaluate ? self::evaluateScalar($output) : $output;
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* Parses quotes scalar
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* @param string $scalar
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* @return string YAML
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static protected function parseQuotedScalar($scalar, &$i)
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$delimiter = $scalar[$i];
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$len = strlen($scalar);
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$escaped = '"' == $delimiter ? '\\"' : "''";
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if (isset($scalar[$i + 1]) && $escaped == $scalar[$i].$scalar[$i + 1])
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$buffer .= $delimiter;
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else if ($delimiter == $scalar[$i])
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$buffer .= $scalar[$i];
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if ('"' == $delimiter)
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// evaluate the string
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$buffer = str_replace('\\n', "\n", $buffer);
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* Parse sequence to yaml
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* @param string $sequence
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* @return string YAML
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static protected function parseSequence($sequence, &$i = 0)
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$len = strlen($sequence);
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switch ($sequence[$i])
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$output[] = self::parseSequence($sequence, $i);
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$output[] = self::parseMapping($sequence, $i);
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$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($value, ': '))
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$value = self::parseMapping('{'.$value.'}');
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catch (InvalidArgumentException $e)
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throw new InvalidArgumentException(sprintf('Malformed inline YAML string %s', $sequence));
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* @param string $mapping
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* @return string YAML
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static protected function parseMapping($mapping, &$i = 0)
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$len = strlen($mapping);
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// {foo: bar, bar:foo, ...}
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switch ($mapping[$i])
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$key = self::parseScalar($mapping, array(':', ' '), array('"', "'"), $i, false);
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switch ($mapping[$i])
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$output[$key] = self::parseSequence($mapping, $i);
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$output[$key] = self::parseMapping($mapping, $i);
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$output[$key] = self::parseScalar($mapping, array(',', '}'), array('"', "'"), $i);
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throw new InvalidArgumentException(sprintf('Malformed inline YAML string %s', $mapping));
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* Evaluates scalars and replaces magic values.
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* @param string $scalar
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* @return string YAML
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static protected function evaluateScalar($scalar)
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$scalar = trim($scalar);
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case 'null' == strtolower($scalar):
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case 0 === strpos($scalar, '!str'):
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return (string) substr($scalar, 5);
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case 0 === strpos($scalar, '! '):
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return intval(self::parseScalar(substr($scalar, 2)));
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case 0 === strpos($scalar, '!!php/object:'):
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return unserialize(substr($scalar, 13));
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case ctype_digit($scalar):
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$cast = intval($scalar);
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return '0' == $scalar[0]
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? octdec($scalar) : (((string) $raw == (string) $cast) ? strval($cast) : $raw);
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case in_array(strtolower($scalar), array('true', 'on', '+', 'yes', 'y')):
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case in_array(strtolower($scalar), array('false', 'off', '-', 'no', 'n')):
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case is_numeric($scalar):
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return '0x' == $scalar[0].$scalar[1] ? hexdec($scalar) : floatval($scalar);
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case 0 == strcasecmp($scalar, '.inf'):
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case 0 == strcasecmp($scalar, '.NaN'):
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case 0 == strcasecmp($scalar, '-.inf'):
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case preg_match('/^(-|\+)?[0-9,]+(\.[0-9]+)?$/', $scalar):
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return floatval(str_replace(',', '', $scalar));
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case preg_match(self::getTimestampRegex(), $scalar):
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return strtotime($scalar);
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return (string) $scalar;
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static protected function getTimestampRegex()
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(?P<year>[0-9][0-9][0-9][0-9])
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-(?P<month>[0-9][0-9]?)
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-(?P<day>[0-9][0-9]?)
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(?P<hour>[0-9][0-9]?)
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:(?P<minute>[0-9][0-9])
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:(?P<second>[0-9][0-9])
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(?:\.(?P<fraction>[0-9]*))?
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(?:[ \t]*(?P<tz>Z|(?P<tz_sign>[-+])(?P<tz_hour>[0-9][0-9]?)
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(?::(?P<tz_minute>[0-9][0-9]))?))?)?
b'\\ No newline at end of file'