Regex for currency and amount C#

Question

I am trying to create a regex for the following outputs:

Text         -                  Output Expected

$200                     currency sign = "$" and amount = 200
€ 20.34                  currency sign = "€" and amount = 20.34
£ 190,234                currency sign = "£" and amount = 190234
$  20.34                 currency sign = "$" and amount = 20.34

I am not good with regex but still I want to do this with regex. Can anybody help me to achieve this?

Answer 1

You can use this regex to capture symbol and amout :

/(?<SYMBOL>[$€£]){1}\s*(?<AMOUNT>[\d.,]+)/g

DEMO (Look at the match information on the right panel)

Hope it helps.

Answer 2

You can use the regex:

(\D)\s*([.\d,]+)

the caputre group 1 will contain currency symbol and group 2 contians value

see the demo http://regex101.com/r/eV2uZ7/1

EXPLANTION

(\\D) mathces anything other than digit

\\s* matches any number of spaces.

[.\\d,]+ matches digits, comma and dot.

To be more specific you can also give \\d[.\\d,]* which ensures that the value part always begin with a digit

Answer 3

([$€£]) *([0-9.,]*)

捕获组1将是货币符号，捕获组2将是金额，您还需要用Replace（'，'，''）删除“，”

Answer 4

    string str = string.Empty , outPut = string.Empty;
        Regex paternWithDot = new Regex(@"\d+(\.\d+)+");
        Regex paternWithComa = new Regex(@"\d+(\,\d+)+");
        Match match = null;


        str = "& 34.34";
        if (str.Contains(".")) match = paternWithDot.Match(str);
        if (str.Contains(",")) match = paternWithComa.Match(str);
        outPut += string.Format( @" currency sign = ""{0}"" and amount = {1}" , str.Replace(match.Value, string.Empty),  match.Value) + Environment.NewLine;


        str = "€ 20.34 ";
        if (str.Contains(".")) match = paternWithDot.Match(str);
        if (str.Contains(",")) match = paternWithComa.Match(str);
        outPut += string.Format(@" currency sign = ""{0}"" and amount = {1}", str.Replace(match.Value, string.Empty), match.Value) + Environment.NewLine;

        str = "£ 190,234";
        if (str.Contains(".")) match = paternWithDot.Match(str);
        if (str.Contains(",")) match = paternWithComa.Match(str);
        outPut += string.Format(@" currency sign = ""{0}"" and amount = {1}", str.Replace(match.Value, string.Empty), match.Value) + Environment.NewLine;

        str = "$  20.34 ";
        if (str.Contains(".")) match = paternWithDot.Match(str);
        if (str.Contains(",")) match = paternWithComa.Match(str);
        outPut += string.Format(@" currency sign = ""{0}"" and amount = {1}", str.Replace(match.Value, string.Empty), match.Value) + Environment.NewLine;

        MessageBox.Show(outPut);