/**
* Parse the given tokens into a data structure
*
* @param array $data
* @param array $tokens
* @return void
*/
protected function _parseLdapSchemaSyntax(array &$data, array $tokens)
{
// tokens that have no value associated
$noValue = array('single-value', 'obsolete', 'collective', 'no-user-modification', 'abstract', 'structural', 'auxiliary');
// tokens that can have multiple values
$multiValue = array('must', 'may', 'sup');
while (count($tokens) > 0) {
$token = strtolower(array_shift($tokens));
if (in_array($token, $noValue)) {
$data[$token] = true;
// single value token
} else {
$data[$token] = array_shift($tokens);
// this one follows a string or a list if it is multivalued
if ($data[$token] == '(') {
// this creates the list of values and cycles through the tokens
// until the end of the list is reached ')'
$data[$token] = array();
while ($tmp = array_shift($tokens)) {
if ($tmp == ')') {
break;
}
if ($tmp != '$') {
$data[$token][] = Ldap\Attribute::convertFromLdapValue($tmp);
}
}
} else {
$data[$token] = Ldap\Attribute::convertFromLdapValue($data[$token]);
}
// create a array if the value should be multivalued but was not
if (in_array($token, $multiValue) && !is_array($data[$token])) {
$data[$token] = array($data[$token]);
}
}
}
}
