/**
*
*
* @return string
*/
public function firstByte()
{
if ($this->length() > 0) {
$bytes = $this->getBytes(MRange::rangeWithLength(1));
return $bytes[0];
} else {
throw new MIndexOutOfBoundsException();
}
}
/**
*
*
* @return MArray
*/
public function subarrayWithRange(MRange $range)
{
return new MArray(array_slice($this->array, $range->location(), $range->length()));
}
/**
*
*
* @return MString
*/
public function substringWithRange(MRange $range)
{
if ($range->location() < 0) {
throw new MIndexOutOfBoundsException($range->location(), 0, $this->length());
}
if ($range->location() + $range->length() > $this->length()) {
throw new MIndexOutOfBoundsException($range->location() + $range->length(), 0, $this->length());
}
return new MString(substr($this->stringValue(), $range->location(), $range->length()));
}
/**
* @internal
*
* @return void
*/
public static function _init()
{
self::$RANGE_NOT_FOUND = MRangeMake(MRange::NOT_FOUND, 0);
}