/**
* Get the key id and put $currentByte after it
* @return void
*/
private function parseKeyId()
{
// checking every byte, one by one, until first 'not key_id' char is reached
for ($this->currentByte = 0; $this->currentByte < $this->keyByteCnt; $this->currentByte++) {
if (!isKeyIdChar($this->key[$this->currentByte])) {
break;
// $this->currentByte now points to a first 'not a key name' char
}
}
// checking if key is empty
if ($this->currentByte == 0) {
$this->isValid = false;
$this->error = _('Invalid item key format.');
} else {
$this->keyId = substr($this->key, 0, $this->currentByte);
}
}
/**
* Parse key and parameters and put them into $this->parameters array.
*
* @param string $key
*/
private function parseKey($key)
{
$pos = 0;
// checking every byte, one by one, until first 'not key_id' char is reached
while (isset($key[$pos])) {
if (!isKeyIdChar($key[$pos])) {
break;
// $pos now points to the first 'not a key name' char
}
$this->keyId .= $key[$pos++];
}
// checking if key is empty
if ($pos == 0) {
$this->isValid = false;
$this->error = $this->errorMessage($key, $pos);
return;
}
// invalid symbol instead of '[', which would be the beginning of params
if (isset($key[$pos]) && $key[$pos] != '[') {
$this->isValid = false;
$this->error = $this->errorMessage($key, $pos);
return;
}
$state = self::STATE_END;
$level = 0;
$num = 0;
while (isset($key[$pos])) {
if ($level == 0) {
// first square bracket + Zapcat compatibility
if ($state == self::STATE_END && $key[$pos] == '[') {
$state = self::STATE_NEW;
} else {
break;
}
}
switch ($state) {
// a new parameter started
case self::STATE_NEW:
switch ($key[$pos]) {
case ' ':
break;
case ',':
if ($level == 1) {
if (!isset($this->parameters[$num])) {
$this->parameters[$num] = '';
}
$num++;
}
break;
case '[':
$level++;
if ($level == 2) {
$l = $pos;
}
break;
case ']':
if ($level == 1) {
if (!isset($this->parameters[$num])) {
$this->parameters[$num] = '';
}
$num++;
} elseif ($level == 2) {
$this->parameters[$num] = '';
for ($l++; $l < $pos; $l++) {
$this->parameters[$num] .= $key[$l];
}
}
$level--;
$state = self::STATE_END;
break;
case '"':
$state = self::STATE_QUOTED;
if ($level == 1) {
$l = $pos;
}
break;
default:
$state = self::STATE_UNQUOTED;
if ($level == 1) {
$l = $pos;
}
}
break;
// end of parameter
// end of parameter
case self::STATE_END:
switch ($key[$pos]) {
case ' ':
break;
case ',':
$state = self::STATE_NEW;
if ($level == 1) {
if (!isset($this->parameters[$num])) {
$this->parameters[$num] = '';
}
$num++;
}
break;
case ']':
if ($level == 1) {
if (!isset($this->parameters[$num])) {
$this->parameters[$num] = '';
}
$num++;
} elseif ($level == 2) {
$this->parameters[$num] = '';
for ($l++; $l < $pos; $l++) {
$this->parameters[$num] .= $key[$l];
}
}
$level--;
break;
default:
break 3;
}
break;
// an unquoted parameter
// an unquoted parameter
case self::STATE_UNQUOTED:
if ($key[$pos] == ']' || $key[$pos] == ',') {
if ($level == 1) {
$this->parameters[$num] = '';
for (; $l < $pos; $l++) {
$this->parameters[$num] .= $key[$l];
}
}
$pos--;
$state = self::STATE_END;
}
break;
// a quoted parameter
// a quoted parameter
case self::STATE_QUOTED:
if ($key[$pos] == '"' && $key[$pos - 1] != '\\') {
if ($level == 1) {
$this->parameters[$num] = '';
for ($l++; $l < $pos; $l++) {
if ($key[$l] != '\\' || $key[$l + 1] != '"') {
$this->parameters[$num] .= $key[$l];
}
}
}
$state = self::STATE_END;
}
break;
}
$pos++;
}
if ($pos == 0 || isset($key[$pos]) || $level != 0) {
$this->isValid = false;
$this->error = $this->errorMessage($key, $pos);
}
}
