public static function getLines($str)
{
if (!$str instanceof UtfString && defined('USE_UTF_STRINGS') && USE_UTF_STRINGS) {
// If the lexer uses UtfString for processing then the position will
// represent the position of the character and not the position of
// the byte.
$str = new UtfString($str);
}
// The reason for using the strlen is that the length
// required is the length in bytes, not characters.
//
// Given the following string: `????+`, where `?` represents a
// multi-byte character (lets assume that every `?` is a 2-byte
// character) and `+` is a newline, the first value of `$i` is `0`
// and the last one is `4` (because there are 5 characters). Bytes
// `$str[0]` and `$str[1]` are the first character, `$str[2]` and
// `$str[3]` are the second one and `$str[4]` is going to be the
// first byte of the third character. The fourth and the last one
// (which is actually a new line) aren't going to be processed at
// all.
$len = $str instanceof UtfString ? $str->length() : strlen($str);
$lines = array(0);
for ($i = 0; $i < $len; ++$i) {
if ($str[$i] === "\n") {
$lines[] = $i + 1;
}
}
return $lines;
} /**
* Test for Linter::getLines
*
* @return void
*/
public function testGetLines()
{
$this->assertEquals(array(0), Linter::getLines(''));
$this->assertEquals(array(0, 2), Linter::getLines("a\nb"));
$this->assertEquals(array(0, 4, 7), Linter::getLines("abc\nde\n"));
}
