trimTailingFrom method
Removes tailing matching characters in sequence
.
Implementation
String trimTailingFrom(String sequence) {
if (sequence.isEmpty) return sequence;
final iterator = _runeIteratorAt(sequence, sequence.length);
while (iterator.movePrevious() && match(iterator.current)) {}
return iterator.currentSize > 0
? sequence.substring(0, iterator.rawIndex + 1)
: '';
}