sfYamlInline Class Reference

Static Public Member Functions
static	dump ($value)
static	load ($value)
static	parseScalar ($scalar, $delimiters=null, $stringDelimiters=array('"', "'"), &$i = 0, $evaluate = true)

Static Protected Member Functions
static	dumpArray ($value)
static	evaluateScalar ($scalar)
static	parseMapping ($mapping, &$i=0)
static	parseQuotedScalar ($scalar, &$i)
static	parseSequence ($sequence, &$i=0)

Detailed Description

Definition at line 21 of file sfYamlInline.php.

Member Function Documentation

static sfYamlInline::dump (   $value )

static

Dumps a given PHP variable to a YAML string.

Parameters

mixed

$value

The PHP variable to convert

Returns

string The YAML string representing the PHP array

Definition at line 74 of file sfYamlInline.php.

  {
    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;
    }
  }

static sfYamlInline::dumpArray (   $value )

staticprotected

Dumps a PHP array to a YAML string.

Parameters

array

$value

The PHP array to dump

Returns

string The YAML string representing the PHP array

Definition at line 131 of file sfYamlInline.php.

  {
    // 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));
  }

static sfYamlInline::evaluateScalar (   $scalar )

staticprotected

Evaluates scalars and replaces magic values.

Parameters

string

$scalar

Returns

string A YAML string

Definition at line 374 of file sfYamlInline.php.

  {
    $scalar = trim($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 sfYamlInline::load (   $value )

static

Convert a YAML string to a PHP array.

Parameters

string

$value

A YAML string

Returns

array A PHP array representing the YAML string

Definition at line 32 of file sfYamlInline.php.

  {
    $value = trim($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;
  }

static sfYamlInline::parseMapping (   $mapping, &  $i = 0  )

staticprotected

Parses a mapping to a YAML string.

Parameters

string	$mapping
integer	$i

Returns

string A YAML string

Definition at line 308 of file sfYamlInline.php.

  {
    $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));
  }

static sfYamlInline::parseQuotedScalar (   $scalar, &  $i  )

staticprotected

Parses a quoted scalar to YAML.

Parameters

string	$scalar
integer	$i

Returns

string A YAML string

Definition at line 215 of file sfYamlInline.php.

  {
    if (!preg_match('/'.self::REGEX_QUOTED_STRING.'/Au', 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;
  }

static sfYamlInline::parseScalar (   $scalar,   $delimiters = null,   $stringDelimiters = array('"', "'"), &  $i = 0,   $evaluate = true  )

static

Parses a scalar to a YAML string.

Parameters

scalar	$scalar
string	$delimiters
array	$stringDelimiter
integer	$i
boolean	$evaluate

Returns

string A YAML string

Definition at line 170 of file sfYamlInline.php.

  {
    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;
  }

static sfYamlInline::parseSequence (   $sequence, &  $i = 0  )

staticprotected

Parses a sequence to a YAML string.

Parameters

string	$sequence
integer	$i

Returns

string A YAML string

Definition at line 248 of file sfYamlInline.php.

  {
    $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));
  }

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The documentation for this class was generated from the following file:

• Doctrine-1.2.4/Doctrine/Parser/sfYaml/sfYamlInline.php