length := 0
for byte in text {
if (byte & 0xc0) != 0x80 {
- length += 1 + (byte >= 0xf0)
+ length += (byte >= 0xf0 ? 2 : 1)
}
}Note: the length of an entity must not include the length of trailing newlines or whitespaces, rtrim entities before computing their length: however, the next offset must include the length of newlines or whitespaces that precede it.