/**
* Process the PDF type character
*
* @param int $pos Original character position in the input string
* @param array $edss Last entry in the Directional Status Stack
*/
protected function processFsiCase($pos, $edss)
{
// X5c. With each FSI, apply rules P2 and P3 to the sequence of characters between the FSI and its
// matching PDI, or if there is no matching PDI, the end of the paragraph, as if this sequence
// of characters were a paragraph. If these rules decide on paragraph embedding level 1, treat
// the FSI as an RLI in rule X5a. Otherwise, treat it as an LRI in rule X5b.
$stepp = new StepP(array_slice($this->ordarr, $pos));
if ($stepp->getPel() == 0) {
$this->setDss($this->getLEven($edss['cel']), UniConstant::LRI, 'NI', true, true, 1);
} else {
$this->setDss($this->getLOdd($edss['cel']), UniConstant::RLI, 'NI', true, true, 1);
}
}
/**
* Get the paragraph embedding level
*
* @param array $par Paragraph
*
* @return int
*/
protected function getPel($par)
{
if ($this->forcertl === 'R') {
return 1;
}
if ($this->forcertl === 'L') {
return 0;
}
$stepp = new StepP($par);
return $stepp->getPel();
}