public function testGetPrevNonWhitespace()
{
$this->assertSame(false, StringUtil::getPrevNonWhitespace(' '));
$this->assertSame(26, StringUtil::getPrevNonWhitespace('natural language processing'));
$this->assertEquals(17, StringUtil::getPrevNonWhitespace('segmentasi kalimat'));
$this->assertEquals(11, StringUtil::getPrevNonWhitespace('Saya belajar segmentasi kalimat.', 12));
// exclusive current position
$this->assertEquals(4, StringUtil::getPrevNonWhitespace('bahasa', 5));
}
private function getLeftoverSpan($text, array $positions)
{
if ($positions[count($positions) - 1] != strlen($text) - 1) {
$start = StringUtil::getNextNonWhitespace($text, $positions[count($positions) - 1]);
$end = StringUtil::getPrevNonWhitespace($text);
if ($start !== false && $end - $start > 0) {
return new Span($start, $end + 1);
}
}
}