/// <summary>
/// Constructs given string to equation elements list, finds mistakes and correct them
/// </summary>
/// <param name="eq">String that will be convert to equation elements list.</param>
/// <param name="ns">Numeral system </param>
public Equation(string eq, Numeral_System ns, string[] Commas_Type)
{
the_Equation = eq;
_Numerical_System = ns;
_Parser = new Parser(_Numerical_System, Commas_Type);
Element_Selector();
try
{
Integrity_Check();
}
catch (EquationIsEmptyException)
{
IMessage_Box Message_Box = Factory.Get_Message_Box;
Message_Box.Pop_Up("Given equation to solve is empty or correction of incorrectly written equation " +
"text left no elements in the equation.");
Element_Colection = new Equation_Elements {
new Number(0)
};
}
Bracket_Pairer();
}
/// <summary>
/// Converts the string representation of a number in given numeral system to its
/// double-precision floating-point number equivalent.
/// </summary>
/// <param name="work_Text">String to convert</param>
public Number Parse(string work_Text)
{
int comma_Position = Comma_Position(work_Text);
bool is_Negative = false;
double parsed_Output = 0;
if (work_Text[0] == '-')
{
is_Negative = true;
}
for (int i = (is_Negative ? 1 : 0); i < comma_Position; i++) //parsing numbers highier than zero
{
try
{
parsed_Output +=
Digit_Parse(work_Text[i], Numeral_System) * Math.Pow(
Numeral_System.System_Type, comma_Position - i - 1);
}
catch (Exception ex)
{
parsed_Output = parsed_Output * Math.Pow(Numeral_System.System_Type, i - comma_Position);
parsed_Output = Recognize_Negative_Sign(parsed_Output, is_Negative);
IMessage_Box Message_Box = Factory.Get_Message_Box;
Message_Box.Pop_Up(ex.Message + $", {work_Text} parsed as {parsed_Output}.");
return(new Number(parsed_Output));
}
}
for (int i = comma_Position + 1; i < work_Text.Length; i++) //parsing numbers lower than zero
{
try
{
parsed_Output +=
Digit_Parse(work_Text[i], Numeral_System) * Math.Pow(
Numeral_System.System_Type, comma_Position - i);
}
catch (Exception ex)
{
parsed_Output = Recognize_Negative_Sign(parsed_Output, is_Negative);
IMessage_Box Message_Box = Factory.Get_Message_Box;
Message_Box.Pop_Up(ex.Message + $", {work_Text} parsed as {parsed_Output}.");
return(new Number(parsed_Output));
}
}
parsed_Output = Recognize_Negative_Sign(parsed_Output, is_Negative);
return(new Number(parsed_Output));
}
/// <summary>
/// Solves given bracket and returns solved number as result.
/// </summary>
/// <param name="elements">Equation elements sorce list.</param>
/// <param name="Current_Bracket_Pair">Pairs of brackets that inner equation is to be solved.</param>
/// <returns></returns>
private Number Inner_Brackets_Solver(Equation_Elements elements, Bracket_Pair Current_Bracket_Pair)
{
foreach (Bracket_Pair Inner_Bracket_pair in Current_Bracket_Pair.Inner_Brackets)
{
int Index_Of_Open_Bracket = elements.IndexOf(Inner_Bracket_pair.Open_Bracket);
int Lenght_Of_Current_Bracket =
elements.IndexOf(Inner_Bracket_pair.Close_Bracket) - Index_Of_Open_Bracket + 1;
Number Solved_Inner_Bracket = Inner_Brackets_Solver(
new Equation_Elements(elements.GetRange(Index_Of_Open_Bracket + 1, Lenght_Of_Current_Bracket - 2)),
Inner_Bracket_pair
);
Exchange_Solved_Range_to_Calculated_Value(
elements, Index_Of_Open_Bracket, Lenght_Of_Current_Bracket, Solved_Inner_Bracket);
}
Number Result_Of_Current_Bracket;
try
{
Result_Of_Current_Bracket = No_Bracket_Solver(elements);
}
catch (EquationIsEmptyException)
{
IMessage_Box Message_Box = Factory.Get_Message_Box;
Message_Box.Pop_Up($"Something went wrong equation or part of eqaution: {elements.Recreate_Equation()} " +
$"had been solved improperly so \"0\" been pushed as result of shown equation.{Environment.NewLine}" +
"If there is an error in input eqution correct or try write write equation in other way");
Result_Of_Current_Bracket = new Number(0);
}
catch (EquationNotSolvedProperlyException e)
{
IMessage_Box Message_Box = Factory.Get_Message_Box;
Message_Box.Pop_Up($"Something went wrong equation or part of eqaution: {elements.Recreate_Equation()} " +
$"had been solved as \"{e.Message}\" so \"0\" been pushed as result of shown equation.{Environment.NewLine}" +
"If there is an error in input eqution correct or try write write equation in other way");
Result_Of_Current_Bracket = new Number(0);;
}
return(Result_Of_Current_Bracket);
}
