Parses a sequence to a YAML string.
string $sequence:
integer &$i:
string A YAML string
ParseException When malformed inline YAML string is parsed
private static 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 ParseException(sprintf('Malformed inline YAML string %s', $sequence));
}