C# regex question.

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C#

regular-expression

Can not get why my Regex class can not instantiate. The regular expression seems to be fine, but i'm getting error message when calling "BuildStructure":

System.ArgumentException : parsing "[(.*?;)(([(if)(while)(for)]).*?\(.*?\){({.*?})*?})]" - Too many )'s.

Here is the code:

class CodeStructureBuilder
{
private const String REGULAR_EXPRESSION =
            @"[(.*?;)([(if)(while)(for)]\s*?\(.*?\){({.*?})*?})]";

public CodeStructureBuilder() {}

public void BuildStructure()
{
    Regex regex = new Regex(REGULAR_EXPRESSION);
}
}