I have a string

String str = "Rs.50000.00 paid thru A/C XX3380 on 28-6-22 16:21:15 to ---, UPI Ref ----. If not done, SMS BLOCKUPI to ----.-Canara Bank"

I want to Extract that amount Rs. 50000.00 This RegExp can get this amount = RegExp(r"\b\d \.\d \b")

I used this code

final intString = _filteredMessages[1].body!;
  final reg = RegExp(r"\b\d \.\d \b");
  final str = reg.allMatches(intString).map((e) => e.group(0));

Giving me output (50000.00)

And i have hard time removing the parenthesis

2 Questions

1. How can extract amount from the string, need just the int without the parenthesis.
2. How to remove the parenthesis from (50000.00)

CodePudding user response：

The parentheses are there because you are creating an iterable of all matches. If your regex had more matches it would be like (50000.00, 1000.00) for example. I believe you just want the first match and in that case you can do

final str = reg.firstMatch(intString)?.group(0);

CodePudding user response：

1. This is best according to me just split the text before paid and get the value you want.

    final amount = str.split("paid");
    var prefix = amount[0].trim(); 
    print(prefix);  //Rs.50000.00