/**
* @param string $unicodeRange
* @param array $charIndex
* @return array
*/
private static function getMatchingCharsFromUnicodeRange($unicodeRange, $charIndex)
{
$matches = array();
$range = new UnicodeRange($unicodeRange);
if ($range->isSimple()) {
if ($charIndex[$unicodeRange]) {
$matches[] = $unicodeRange;
}
} else {
reset($charIndex);
while (list($char) = each($charIndex)) {
if ($range->contains($char)) {
$matches[] = $char;
}
}
}
return $matches;
}
