diff --git a/vendor/yaml/sfYaml.php b/vendor/yaml/sfYaml.php new file mode 100644 index 0000000..1d89ccc --- /dev/null +++ b/vendor/yaml/sfYaml.php @@ -0,0 +1,135 @@ + + * + * For the full copyright and license information, please view the LICENSE + * file that was distributed with this source code. + */ + +/** + * sfYaml offers convenience methods to load and dump YAML. + * + * @package symfony + * @subpackage yaml + * @author Fabien Potencier + * @version SVN: $Id: sfYaml.class.php 8988 2008-05-15 20:24:26Z fabien $ + */ +class sfYaml +{ + static protected + $spec = '1.2'; + + /** + * Sets the YAML specification version to use. + * + * @param string $version The YAML specification version + */ + static public function setSpecVersion($version) + { + if (!in_array($version, array('1.1', '1.2'))) + { + throw new InvalidArgumentException(sprintf('Version %s of the YAML specifications is not supported', $version)); + } + + self::$spec = $version; + } + + /** + * Gets the YAML specification version to use. + * + * @return string The YAML specification version + */ + static public function getSpecVersion() + { + return self::$spec; + } + + /** + * Loads YAML into a PHP array. + * + * The load method, when supplied with a YAML stream (string or file), + * will do its best to convert YAML in a file into a PHP array. + * + * Usage: + * + * $array = sfYaml::load('config.yml'); + * print_r($array); + * + * + * @param string $input Path of YAML file or string containing YAML + * + * @return array The YAML converted to a PHP array + * + * @throws InvalidArgumentException If the YAML is not valid + */ + public static function load($input) + { + $file = ''; + + // if input is a file, process it + if (strpos($input, "\n") === false && is_file($input)) + { + $file = $input; + + ob_start(); + $retval = include($input); + $content = ob_get_clean(); + + // if an array is returned by the config file assume it's in plain php form else in YAML + $input = is_array($retval) ? $retval : $content; + } + + // if an array is returned by the config file assume it's in plain php form else in YAML + if (is_array($input)) + { + return $input; + } + + require_once dirname(__FILE__).'/sfYamlParser.php'; + + $yaml = new sfYamlParser(); + + try + { + $ret = $yaml->parse($input); + } + catch (Exception $e) + { + throw new InvalidArgumentException(sprintf('Unable to parse %s: %s', $file ? sprintf('file "%s"', $file) : 'string', $e->getMessage())); + } + + return $ret; + } + + /** + * Dumps a PHP array to a YAML string. + * + * The dump method, when supplied with an array, will do its best + * to convert the array into friendly YAML. + * + * @param array $array PHP array + * @param integer $inline The level where you switch to inline YAML + * + * @return string A YAML string representing the original PHP array + */ + public static function dump($array, $inline = 2) + { + require_once dirname(__FILE__).'/sfYamlDumper.php'; + + $yaml = new sfYamlDumper(); + + return $yaml->dump($array, $inline); + } +} + +/** + * Wraps echo to automatically provide a newline. + * + * @param string $string The string to echo with new line + */ +function echoln($string) +{ + echo $string."\n"; +} diff --git a/vendor/yaml/sfYamlDumper.php b/vendor/yaml/sfYamlDumper.php new file mode 100644 index 0000000..0ada2b3 --- /dev/null +++ b/vendor/yaml/sfYamlDumper.php @@ -0,0 +1,60 @@ + + * + * For the full copyright and license information, please view the LICENSE + * file that was distributed with this source code. + */ + +require_once(dirname(__FILE__).'/sfYamlInline.php'); + +/** + * sfYamlDumper dumps PHP variables to YAML strings. + * + * @package symfony + * @subpackage yaml + * @author Fabien Potencier + * @version SVN: $Id: sfYamlDumper.class.php 10575 2008-08-01 13:08:42Z nicolas $ + */ +class sfYamlDumper +{ + /** + * Dumps a PHP value to YAML. + * + * @param mixed $input The PHP value + * @param integer $inline The level where you switch to inline YAML + * @param integer $indent The level o indentation indentation (used internally) + * + * @return string The YAML representation of the PHP value + */ + public function dump($input, $inline = 0, $indent = 0) + { + $output = ''; + $prefix = $indent ? str_repeat(' ', $indent) : ''; + + if ($inline <= 0 || !is_array($input) || empty($input)) + { + $output .= $prefix.sfYamlInline::dump($input); + } + else + { + $isAHash = array_keys($input) !== range(0, count($input) - 1); + + foreach ($input as $key => $value) + { + $willBeInlined = $inline - 1 <= 0 || !is_array($value) || empty($value); + + $output .= sprintf('%s%s%s%s', + $prefix, + $isAHash ? sfYamlInline::dump($key).':' : '-', + $willBeInlined ? ' ' : "\n", + $this->dump($value, $inline - 1, $willBeInlined ? 0 : $indent + 2) + ).($willBeInlined ? "\n" : ''); + } + } + + return $output; + } +} diff --git a/vendor/yaml/sfYamlInline.php b/vendor/yaml/sfYamlInline.php new file mode 100644 index 0000000..66edb4f --- /dev/null +++ b/vendor/yaml/sfYamlInline.php @@ -0,0 +1,442 @@ + + * + * For the full copyright and license information, please view the LICENSE + * file that was distributed with this source code. + */ + +require_once dirname(__FILE__).'/sfYaml.php'; + +/** + * sfYamlInline implements a YAML parser/dumper for the YAML inline syntax. + * + * @package symfony + * @subpackage yaml + * @author Fabien Potencier + * @version SVN: $Id: sfYamlInline.class.php 16177 2009-03-11 08:32:48Z fabien $ + */ +class sfYamlInline +{ + const REGEX_QUOTED_STRING = '(?:"([^"\\\\]*(?:\\\\.[^"\\\\]*)*)"|\'([^\']*(?:\'\'[^\']*)*)\')'; + + /** + * Convert a YAML string to a PHP array. + * + * @param string $value A YAML string + * + * @return array A PHP array representing the YAML string + */ + static public function load($value) + { + $value = trim($value); + + if (0 == strlen($value)) + { + return ''; + } + + if (function_exists('mb_internal_encoding') && ((int) ini_get('mbstring.func_overload')) & 2) + { + $mbEncoding = mb_internal_encoding(); + mb_internal_encoding('ASCII'); + } + + switch ($value[0]) + { + case '[': + $result = self::parseSequence($value); + break; + case '{': + $result = self::parseMapping($value); + break; + default: + $result = self::parseScalar($value); + } + + if (isset($mbEncoding)) + { + mb_internal_encoding($mbEncoding); + } + + return $result; + } + + /** + * Dumps a given PHP variable to a YAML string. + * + * @param mixed $value The PHP variable to convert + * + * @return string The YAML string representing the PHP array + */ + static public function dump($value) + { + if ('1.1' === sfYaml::getSpecVersion()) + { + $trueValues = array('true', 'on', '+', 'yes', 'y'); + $falseValues = array('false', 'off', '-', 'no', 'n'); + } + else + { + $trueValues = array('true'); + $falseValues = array('false'); + } + + switch (true) + { + case is_resource($value): + throw new InvalidArgumentException('Unable to dump PHP resources in a YAML file.'); + case is_object($value): + return '!!php/object:'.serialize($value); + case is_array($value): + return self::dumpArray($value); + case null === $value: + return 'null'; + case true === $value: + return 'true'; + case false === $value: + return 'false'; + case ctype_digit($value): + return is_string($value) ? "'$value'" : (int) $value; + case is_numeric($value): + return is_infinite($value) ? str_ireplace('INF', '.Inf', strval($value)) : (is_string($value) ? "'$value'" : $value); + case false !== strpos($value, "\n") || false !== strpos($value, "\r"): + return sprintf('"%s"', str_replace(array('"', "\n", "\r"), array('\\"', '\n', '\r'), $value)); + case preg_match('/[ \s \' " \: \{ \} \[ \] , & \* \# \?] | \A[ - ? | < > = ! % @ ` ]/x', $value): + return sprintf("'%s'", str_replace('\'', '\'\'', $value)); + case '' == $value: + return "''"; + case preg_match(self::getTimestampRegex(), $value): + return "'$value'"; + case in_array(strtolower($value), $trueValues): + return "'$value'"; + case in_array(strtolower($value), $falseValues): + return "'$value'"; + case in_array(strtolower($value), array('null', '~')): + return "'$value'"; + default: + return $value; + } + } + + /** + * Dumps a PHP array to a YAML string. + * + * @param array $value The PHP array to dump + * + * @return string The YAML string representing the PHP array + */ + static protected function dumpArray($value) + { + // array + $keys = array_keys($value); + if ( + (1 == count($keys) && '0' == $keys[0]) + || + (count($keys) > 1 && array_reduce($keys, create_function('$v,$w', 'return (integer) $v + $w;'), 0) == count($keys) * (count($keys) - 1) / 2)) + { + $output = array(); + foreach ($value as $val) + { + $output[] = self::dump($val); + } + + return sprintf('[%s]', implode(', ', $output)); + } + + // mapping + $output = array(); + foreach ($value as $key => $val) + { + $output[] = sprintf('%s: %s', self::dump($key), self::dump($val)); + } + + return sprintf('{ %s }', implode(', ', $output)); + } + + /** + * Parses a scalar to a YAML string. + * + * @param scalar $scalar + * @param string $delimiters + * @param array $stringDelimiter + * @param integer $i + * @param boolean $evaluate + * + * @return string A YAML string + */ + static public function parseScalar($scalar, $delimiters = null, $stringDelimiters = array('"', "'"), &$i = 0, $evaluate = true) + { + if (in_array($scalar[$i], $stringDelimiters)) + { + // quoted scalar + $output = self::parseQuotedScalar($scalar, $i); + } + else + { + // "normal" string + if (!$delimiters) + { + $output = substr($scalar, $i); + $i += strlen($output); + + // remove comments + if (false !== $strpos = strpos($output, ' #')) + { + $output = rtrim(substr($output, 0, $strpos)); + } + } + else if (preg_match('/^(.+?)('.implode('|', $delimiters).')/', substr($scalar, $i), $match)) + { + $output = $match[1]; + $i += strlen($output); + } + else + { + throw new InvalidArgumentException(sprintf('Malformed inline YAML string (%s).', $scalar)); + } + + $output = $evaluate ? self::evaluateScalar($output) : $output; + } + + return $output; + } + + /** + * Parses a quoted scalar to YAML. + * + * @param string $scalar + * @param integer $i + * + * @return string A YAML string + */ + static protected function parseQuotedScalar($scalar, &$i) + { + if (!preg_match('/'.self::REGEX_QUOTED_STRING.'/A', substr($scalar, $i), $match)) + { + throw new InvalidArgumentException(sprintf('Malformed inline YAML string (%s).', substr($scalar, $i))); + } + + $output = substr($match[0], 1, strlen($match[0]) - 2); + + if ('"' == $scalar[$i]) + { + // evaluate the string + $output = str_replace(array('\\"', '\\n', '\\r'), array('"', "\n", "\r"), $output); + } + else + { + // unescape ' + $output = str_replace('\'\'', '\'', $output); + } + + $i += strlen($match[0]); + + return $output; + } + + /** + * Parses a sequence to a YAML string. + * + * @param string $sequence + * @param integer $i + * + * @return string A YAML string + */ + static protected function parseSequence($sequence, &$i = 0) + { + $output = array(); + $len = strlen($sequence); + $i += 1; + + // [foo, bar, ...] + while ($i < $len) + { + switch ($sequence[$i]) + { + case '[': + // nested sequence + $output[] = self::parseSequence($sequence, $i); + break; + case '{': + // nested mapping + $output[] = self::parseMapping($sequence, $i); + break; + case ']': + return $output; + case ',': + case ' ': + break; + default: + $isQuoted = in_array($sequence[$i], array('"', "'")); + $value = self::parseScalar($sequence, array(',', ']'), array('"', "'"), $i); + + if (!$isQuoted && false !== strpos($value, ': ')) + { + // embedded mapping? + try + { + $value = self::parseMapping('{'.$value.'}'); + } + catch (InvalidArgumentException $e) + { + // no, it's not + } + } + + $output[] = $value; + + --$i; + } + + ++$i; + } + + throw new InvalidArgumentException(sprintf('Malformed inline YAML string %s', $sequence)); + } + + /** + * Parses a mapping to a YAML string. + * + * @param string $mapping + * @param integer $i + * + * @return string A YAML string + */ + static protected function parseMapping($mapping, &$i = 0) + { + $output = array(); + $len = strlen($mapping); + $i += 1; + + // {foo: bar, bar:foo, ...} + while ($i < $len) + { + switch ($mapping[$i]) + { + case ' ': + case ',': + ++$i; + continue 2; + case '}': + return $output; + } + + // key + $key = self::parseScalar($mapping, array(':', ' '), array('"', "'"), $i, false); + + // value + $done = false; + while ($i < $len) + { + switch ($mapping[$i]) + { + case '[': + // nested sequence + $output[$key] = self::parseSequence($mapping, $i); + $done = true; + break; + case '{': + // nested mapping + $output[$key] = self::parseMapping($mapping, $i); + $done = true; + break; + case ':': + case ' ': + break; + default: + $output[$key] = self::parseScalar($mapping, array(',', '}'), array('"', "'"), $i); + $done = true; + --$i; + } + + ++$i; + + if ($done) + { + continue 2; + } + } + } + + throw new InvalidArgumentException(sprintf('Malformed inline YAML string %s', $mapping)); + } + + /** + * Evaluates scalars and replaces magic values. + * + * @param string $scalar + * + * @return string A YAML string + */ + static protected function evaluateScalar($scalar) + { + $scalar = trim($scalar); + + if ('1.1' === sfYaml::getSpecVersion()) + { + $trueValues = array('true', 'on', '+', 'yes', 'y'); + $falseValues = array('false', 'off', '-', 'no', 'n'); + } + else + { + $trueValues = array('true'); + $falseValues = array('false'); + } + + switch (true) + { + case 'null' == strtolower($scalar): + case '' == $scalar: + case '~' == $scalar: + return null; + case 0 === strpos($scalar, '!str'): + return (string) substr($scalar, 5); + case 0 === strpos($scalar, '! '): + return intval(self::parseScalar(substr($scalar, 2))); + case 0 === strpos($scalar, '!!php/object:'): + return unserialize(substr($scalar, 13)); + case ctype_digit($scalar): + $raw = $scalar; + $cast = intval($scalar); + return '0' == $scalar[0] ? octdec($scalar) : (((string) $raw == (string) $cast) ? $cast : $raw); + case in_array(strtolower($scalar), $trueValues): + return true; + case in_array(strtolower($scalar), $falseValues): + return false; + case is_numeric($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; + } + } + + static protected function getTimestampRegex() + { + return <<[0-9][0-9][0-9][0-9]) + -(?P[0-9][0-9]?) + -(?P[0-9][0-9]?) + (?:(?:[Tt]|[ \t]+) + (?P[0-9][0-9]?) + :(?P[0-9][0-9]) + :(?P[0-9][0-9]) + (?:\.(?P[0-9]*))? + (?:[ \t]*(?PZ|(?P[-+])(?P[0-9][0-9]?) + (?::(?P[0-9][0-9]))?))?)? + $~x +EOF; + } +} diff --git a/vendor/yaml/sfYamlParser.php b/vendor/yaml/sfYamlParser.php new file mode 100644 index 0000000..b1ee0bf --- /dev/null +++ b/vendor/yaml/sfYamlParser.php @@ -0,0 +1,610 @@ + + * + * For the full copyright and license information, please view the LICENSE + * file that was distributed with this source code. + */ + +require_once(dirname(__FILE__).'/sfYamlInline.php'); + +if (!defined('PREG_BAD_UTF8_OFFSET_ERROR')) +{ + define('PREG_BAD_UTF8_OFFSET_ERROR', 5); +} + +/** + * sfYamlParser parses YAML strings to convert them to PHP arrays. + * + * @package symfony + * @subpackage yaml + * @author Fabien Potencier + * @version SVN: $Id: sfYamlParser.class.php 10832 2008-08-13 07:46:08Z fabien $ + */ +class sfYamlParser +{ + protected + $offset = 0, + $lines = array(), + $currentLineNb = -1, + $currentLine = '', + $refs = array(); + + /** + * Constructor + * + * @param integer $offset The offset of YAML document (used for line numbers in error messages) + */ + public function __construct($offset = 0) + { + $this->offset = $offset; + } + + /** + * Parses a YAML string to a PHP value. + * + * @param string $value A YAML string + * + * @return mixed A PHP value + * + * @throws InvalidArgumentException If the YAML is not valid + */ + public function parse($value) + { + $this->currentLineNb = -1; + $this->currentLine = ''; + $this->lines = explode("\n", $this->cleanup($value)); + + if (function_exists('mb_internal_encoding') && ((int) ini_get('mbstring.func_overload')) & 2) + { + $mbEncoding = mb_internal_encoding(); + mb_internal_encoding('ASCII'); + } + + $data = array(); + while ($this->moveToNextLine()) + { + if ($this->isCurrentLineEmpty()) + { + continue; + } + + // tab? + if (preg_match('#^\t+#', $this->currentLine)) + { + throw new InvalidArgumentException(sprintf('A YAML file cannot contain tabs as indentation at line %d (%s).', $this->getRealCurrentLineNb() + 1, $this->currentLine)); + } + + $isRef = $isInPlace = $isProcessed = false; + if (preg_match('#^\-((?P\s+)(?P.+?))?\s*$#', $this->currentLine, $values)) + { + if (isset($values['value']) && preg_match('#^&(?P[^ ]+) *(?P.*)#', $values['value'], $matches)) + { + $isRef = $matches['ref']; + $values['value'] = $matches['value']; + } + + // array + if (!isset($values['value']) || '' == trim($values['value'], ' ') || 0 === strpos(ltrim($values['value'], ' '), '#')) + { + $c = $this->getRealCurrentLineNb() + 1; + $parser = new sfYamlParser($c); + $parser->refs =& $this->refs; + $data[] = $parser->parse($this->getNextEmbedBlock()); + } + else + { + if (isset($values['leadspaces']) + && ' ' == $values['leadspaces'] + && preg_match('#^(?P'.sfYamlInline::REGEX_QUOTED_STRING.'|[^ \'"\{].*?) *\:(\s+(?P.+?))?\s*$#', $values['value'], $matches)) + { + // this is a compact notation element, add to next block and parse + $c = $this->getRealCurrentLineNb(); + $parser = new sfYamlParser($c); + $parser->refs =& $this->refs; + + $block = $values['value']; + if (!$this->isNextLineIndented()) + { + $block .= "\n".$this->getNextEmbedBlock($this->getCurrentLineIndentation() + 2); + } + + $data[] = $parser->parse($block); + } + else + { + $data[] = $this->parseValue($values['value']); + } + } + } + else if (preg_match('#^(?P'.sfYamlInline::REGEX_QUOTED_STRING.'|[^ \'"].*?) *\:(\s+(?P.+?))?\s*$#', $this->currentLine, $values)) + { + $key = sfYamlInline::parseScalar($values['key']); + + if ('<<' === $key) + { + if (isset($values['value']) && '*' === substr($values['value'], 0, 1)) + { + $isInPlace = substr($values['value'], 1); + if (!array_key_exists($isInPlace, $this->refs)) + { + throw new InvalidArgumentException(sprintf('Reference "%s" does not exist at line %s (%s).', $isInPlace, $this->getRealCurrentLineNb() + 1, $this->currentLine)); + } + } + else + { + if (isset($values['value']) && $values['value'] !== '') + { + $value = $values['value']; + } + else + { + $value = $this->getNextEmbedBlock(); + } + $c = $this->getRealCurrentLineNb() + 1; + $parser = new sfYamlParser($c); + $parser->refs =& $this->refs; + $parsed = $parser->parse($value); + + $merged = array(); + if (!is_array($parsed)) + { + throw new InvalidArgumentException(sprintf("YAML merge keys used with a scalar value instead of an array at line %s (%s)", $this->getRealCurrentLineNb() + 1, $this->currentLine)); + } + else if (isset($parsed[0])) + { + // Numeric array, merge individual elements + foreach (array_reverse($parsed) as $parsedItem) + { + if (!is_array($parsedItem)) + { + throw new InvalidArgumentException(sprintf("Merge items must be arrays at line %s (%s).", $this->getRealCurrentLineNb() + 1, $parsedItem)); + } + $merged = array_merge($parsedItem, $merged); + } + } + else + { + // Associative array, merge + $merged = array_merge($merge, $parsed); + } + + $isProcessed = $merged; + } + } + else if (isset($values['value']) && preg_match('#^&(?P[^ ]+) *(?P.*)#', $values['value'], $matches)) + { + $isRef = $matches['ref']; + $values['value'] = $matches['value']; + } + + if ($isProcessed) + { + // Merge keys + $data = $isProcessed; + } + // hash + else if (!isset($values['value']) || '' == trim($values['value'], ' ') || 0 === strpos(ltrim($values['value'], ' '), '#')) + { + // if next line is less indented or equal, then it means that the current value is null + if ($this->isNextLineIndented()) + { + $data[$key] = null; + } + else + { + $c = $this->getRealCurrentLineNb() + 1; + $parser = new sfYamlParser($c); + $parser->refs =& $this->refs; + $data[$key] = $parser->parse($this->getNextEmbedBlock()); + } + } + else + { + if ($isInPlace) + { + $data = $this->refs[$isInPlace]; + } + else + { + $data[$key] = $this->parseValue($values['value']); + } + } + } + else + { + // 1-liner followed by newline + if (2 == count($this->lines) && empty($this->lines[1])) + { + $value = sfYamlInline::load($this->lines[0]); + if (is_array($value)) + { + $first = reset($value); + if ('*' === substr($first, 0, 1)) + { + $data = array(); + foreach ($value as $alias) + { + $data[] = $this->refs[substr($alias, 1)]; + } + $value = $data; + } + } + + if (isset($mbEncoding)) + { + mb_internal_encoding($mbEncoding); + } + + return $value; + } + + switch (preg_last_error()) + { + case PREG_INTERNAL_ERROR: + $error = 'Internal PCRE error on line'; + break; + case PREG_BACKTRACK_LIMIT_ERROR: + $error = 'pcre.backtrack_limit reached on line'; + break; + case PREG_RECURSION_LIMIT_ERROR: + $error = 'pcre.recursion_limit reached on line'; + break; + case PREG_BAD_UTF8_ERROR: + $error = 'Malformed UTF-8 data on line'; + break; + case PREG_BAD_UTF8_OFFSET_ERROR: + $error = 'Offset doesn\'t correspond to the begin of a valid UTF-8 code point on line'; + break; + default: + $error = 'Unable to parse line'; + } + + throw new InvalidArgumentException(sprintf('%s %d (%s).', $error, $this->getRealCurrentLineNb() + 1, $this->currentLine)); + } + + if ($isRef) + { + $this->refs[$isRef] = end($data); + } + } + + if (isset($mbEncoding)) + { + mb_internal_encoding($mbEncoding); + } + + return empty($data) ? null : $data; + } + + /** + * Returns the current line number (takes the offset into account). + * + * @return integer The current line number + */ + protected function getRealCurrentLineNb() + { + return $this->currentLineNb + $this->offset; + } + + /** + * Returns the current line indentation. + * + * @return integer The current line indentation + */ + protected function getCurrentLineIndentation() + { + return strlen($this->currentLine) - strlen(ltrim($this->currentLine, ' ')); + } + + /** + * Returns the next embed block of YAML. + * + * @param integer $indentation The indent level at which the block is to be read, or null for default + * + * @return string A YAML string + */ + protected function getNextEmbedBlock($indentation = null) + { + $this->moveToNextLine(); + + if (null === $indentation) + { + $newIndent = $this->getCurrentLineIndentation(); + + if (!$this->isCurrentLineEmpty() && 0 == $newIndent) + { + throw new InvalidArgumentException(sprintf('Indentation problem at line %d (%s)', $this->getRealCurrentLineNb() + 1, $this->currentLine)); + } + } + else + { + $newIndent = $indentation; + } + + $data = array(substr($this->currentLine, $newIndent)); + + while ($this->moveToNextLine()) + { + if ($this->isCurrentLineEmpty()) + { + if ($this->isCurrentLineBlank()) + { + $data[] = substr($this->currentLine, $newIndent); + } + + continue; + } + + $indent = $this->getCurrentLineIndentation(); + + if (preg_match('#^(?P *)$#', $this->currentLine, $match)) + { + // empty line + $data[] = $match['text']; + } + else if ($indent >= $newIndent) + { + $data[] = substr($this->currentLine, $newIndent); + } + else if (0 == $indent) + { + $this->moveToPreviousLine(); + + break; + } + else + { + throw new InvalidArgumentException(sprintf('Indentation problem at line %d (%s)', $this->getRealCurrentLineNb() + 1, $this->currentLine)); + } + } + + return implode("\n", $data); + } + + /** + * Moves the parser to the next line. + */ + protected function moveToNextLine() + { + if ($this->currentLineNb >= count($this->lines) - 1) + { + return false; + } + + $this->currentLine = $this->lines[++$this->currentLineNb]; + + return true; + } + + /** + * Moves the parser to the previous line. + */ + protected function moveToPreviousLine() + { + $this->currentLine = $this->lines[--$this->currentLineNb]; + } + + /** + * Parses a YAML value. + * + * @param string $value A YAML value + * + * @return mixed A PHP value + */ + protected function parseValue($value) + { + if ('*' === substr($value, 0, 1)) + { + if (false !== $pos = strpos($value, '#')) + { + $value = substr($value, 1, $pos - 2); + } + else + { + $value = substr($value, 1); + } + + if (!array_key_exists($value, $this->refs)) + { + throw new InvalidArgumentException(sprintf('Reference "%s" does not exist (%s).', $value, $this->currentLine)); + } + return $this->refs[$value]; + } + + if (preg_match('/^(?P\||>)(?P\+|\-|\d+|\+\d+|\-\d+|\d+\+|\d+\-)?(?P +#.*)?$/', $value, $matches)) + { + $modifiers = isset($matches['modifiers']) ? $matches['modifiers'] : ''; + + return $this->parseFoldedScalar($matches['separator'], preg_replace('#\d+#', '', $modifiers), intval(abs($modifiers))); + } + else + { + return sfYamlInline::load($value); + } + } + + /** + * Parses a folded scalar. + * + * @param string $separator The separator that was used to begin this folded scalar (| or >) + * @param string $indicator The indicator that was used to begin this folded scalar (+ or -) + * @param integer $indentation The indentation that was used to begin this folded scalar + * + * @return string The text value + */ + protected function parseFoldedScalar($separator, $indicator = '', $indentation = 0) + { + $separator = '|' == $separator ? "\n" : ' '; + $text = ''; + + $notEOF = $this->moveToNextLine(); + + while ($notEOF && $this->isCurrentLineBlank()) + { + $text .= "\n"; + + $notEOF = $this->moveToNextLine(); + } + + if (!$notEOF) + { + return ''; + } + + if (!preg_match('#^(?P'.($indentation ? str_repeat(' ', $indentation) : ' +').')(?P.*)$#', $this->currentLine, $matches)) + { + $this->moveToPreviousLine(); + + return ''; + } + + $textIndent = $matches['indent']; + $previousIndent = 0; + + $text .= $matches['text'].$separator; + while ($this->currentLineNb + 1 < count($this->lines)) + { + $this->moveToNextLine(); + + if (preg_match('#^(?P {'.strlen($textIndent).',})(?P.+)$#', $this->currentLine, $matches)) + { + if (' ' == $separator && $previousIndent != $matches['indent']) + { + $text = substr($text, 0, -1)."\n"; + } + $previousIndent = $matches['indent']; + + $text .= str_repeat(' ', $diff = strlen($matches['indent']) - strlen($textIndent)).$matches['text'].($diff ? "\n" : $separator); + } + else if (preg_match('#^(?P *)$#', $this->currentLine, $matches)) + { + $text .= preg_replace('#^ {1,'.strlen($textIndent).'}#', '', $matches['text'])."\n"; + } + else + { + $this->moveToPreviousLine(); + + break; + } + } + + if (' ' == $separator) + { + // replace last separator by a newline + $text = preg_replace('/ (\n*)$/', "\n$1", $text); + } + + switch ($indicator) + { + case '': + $text = preg_replace('#\n+$#s', "\n", $text); + break; + case '+': + break; + case '-': + $text = preg_replace('#\n+$#s', '', $text); + break; + } + + return $text; + } + + /** + * Returns true if the next line is indented. + * + * @return Boolean Returns true if the next line is indented, false otherwise + */ + protected function isNextLineIndented() + { + $currentIndentation = $this->getCurrentLineIndentation(); + $notEOF = $this->moveToNextLine(); + + while ($notEOF && $this->isCurrentLineEmpty()) + { + $notEOF = $this->moveToNextLine(); + } + + if (false === $notEOF) + { + return false; + } + + $ret = false; + if ($this->getCurrentLineIndentation() <= $currentIndentation) + { + $ret = true; + } + + $this->moveToPreviousLine(); + + return $ret; + } + + /** + * Returns true if the current line is blank or if it is a comment line. + * + * @return Boolean Returns true if the current line is empty or if it is a comment line, false otherwise + */ + protected function isCurrentLineEmpty() + { + return $this->isCurrentLineBlank() || $this->isCurrentLineComment(); + } + + /** + * Returns true if the current line is blank. + * + * @return Boolean Returns true if the current line is blank, false otherwise + */ + protected function isCurrentLineBlank() + { + return '' == trim($this->currentLine, ' '); + } + + /** + * Returns true if the current line is a comment line. + * + * @return Boolean Returns true if the current line is a comment line, false otherwise + */ + protected function isCurrentLineComment() + { + //checking explicitly the first char of the trim is faster than loops or strpos + $ltrimmedLine = ltrim($this->currentLine, ' '); + return $ltrimmedLine[0] === '#'; + } + + /** + * Cleanups a YAML string to be parsed. + * + * @param string $value The input YAML string + * + * @return string A cleaned up YAML string + */ + protected function cleanup($value) + { + $value = str_replace(array("\r\n", "\r"), "\n", $value); + + if (!preg_match("#\n$#", $value)) + { + $value .= "\n"; + } + + // strip YAML header + $count = 0; + $value = preg_replace('#^\%YAML[: ][\d\.]+.*\n#s', '', $value, -1, $count); + $this->offset += $count; + + // remove leading comments and/or --- + $trimmedValue = preg_replace('#^((\#.*?\n)|(\-\-\-.*?\n))*#s', '', $value, -1, $count); + if ($count == 1) + { + // items have been removed, update the offset + $this->offset += substr_count($value, "\n") - substr_count($trimmedValue, "\n"); + $value = $trimmedValue; + } + + return $value; + } +}