Question

Using regular expressions in .NET with the pattern ^%[^%]+%\Z and the string "few)few%" I get the error – System.ArgumentException: parsing "few)few%" - Too many )'s.

Dim match As System.Text.RegularExpressions.Match = System.Text.RegularExpressions.Regex.Match("^%[^%]+%\Z", "few)few%")

What would the issue be? Do I need to escape brackets in any input expression to reg ex?

(I’m trying the determine if string has the wildcard % at the beginning and end of the string but not elsewhere in the string)

Answer 1

No, your input does not have to be escaped. You simply have your arguments the wrong way around.

From MSDN:

public static Match Match(
    string input,
    string pattern
)