fastParse method
Parses the input and returns true
if successful, false
otherwise.
Implementation
@override
bool fastParse(State<StringReader> state) {
final input = state.input;
while (state.pos < input.length) {
final c = input.readChar(state.pos);
if (!(c >= 0x30 && c <= 0x39)) {
break;
}
state.pos += input.count;
}
return true;
}