NumberTextFormatter<T extends num?> constructor
Create number formatter used for TextInput
Implementation
NumberTextFormatter({this.fraction = 0, this.locale}) {
if ((_type == 'int' || _type == 'int?') && fraction > 0) {
throw Exception("Integer don't accept fraction number");
}
//format decimal number
var s = '#,##0';
if (fraction > 0) {
s += '.'.padRight(fraction + 1, '#');
}
numberFormat = NumberFormat(s, locale);
_decimal = numberFormat.symbols.DECIMAL_SEP;
_thousand = numberFormat.symbols.GROUP_SEP;
if (fraction > 0) {
_regex = RegExp('^\\d+(?:\\.\\d{0,$fraction})?\$');
} else {
_regex = RegExp(r'^\d+$');
}
}