trimRight method
Trims all trailing whitespaces.
Returns the number of bits that have been detached.
Implementation
int trimRight() {
var trimmed = 0;
while (_children.isNotEmpty && hasTrailingWhitespace) {
final child = _children.last;
if (child is TextBits) {
final _trimmed = child.trimRight();
if (_trimmed > 0) {
trimmed += _trimmed;
if (child.isEmpty) child.detach();
} else {
child.detach();
}
} else {
child.detach();
trimmed++;
}
}
return trimmed;
}