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Tenary expressions

Ternary expressions

Now we should have a look at the ParserHelper class. On thing I notice is

You could also turn this into extension methods.

ParserHelper

Setting aside what already been said about the tenary method.

• the decimal separator differs from country to country. Using of the CultureInfo is recommended.

• redunant else to be removed. If the condition is true, the else part is never reached and can therfor be removed.

    if(condition) return true;
    else return (true or false);
  

These and the above implemented the class looks like

public static class ParserHelper
{
    public static bool IsNameChar(char a)
    {
        return a == '_' || char.IsLetter(a);
    }
    private static char decimalSeparator = CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator[0];
    public static bool IsNum(char a)
    {
        return  (a == decimalSeparator) || char.IsDigit(a);
    }

    public static bool IsLeftBracket(char a)
    {
        return (a == '(');
    }

    public static bool IsRightBracket(char a)
    {
        return (a == ')');
    }

    public static bool IsOperator(char a)
    {
        return "+-*/%=".Contains(a);
    }

    public static bool IsSeparator(char a)
    {
        return (a == ';');
    }

    public static bool IsWhiteSpace(char a)
    {
        return char.IsWhiteSpace(a);
    }
}

Now we should have a look at the ParserHelper class. On thing I notice is