/// <summary>
/// Will add brackets if there are more unctions without brackets
/// </summary>
/// <param name="equation">string containing equation</param>
/// <returns>equation</returns>
private string FixFunctionInFunctionWithoutBracket(string equation)
{
string tmpEquation = equation;
List <int> indexesForStartingBracket = new List <int>();
List <int> indexesForEndingBracket = new List <int>();
// search for last one argument operator
int op;
while ((op = GetLastIndexOfOperatorFromEnumArray(tmpEquation, Operators.OperatorsPriority1)) != -1)
{
int lengthOfOperator = Operators.GetOperatorFromEnum(Operators.GetOperator(tmpEquation.Substring(op)))
.Length;
// getting indexes for brackets
indexesForStartingBracket.Add(op + lengthOfOperator);
// ending bracket should be after number or after inner function
// if there is internal function, then was replaced with number characters
indexesForEndingBracket.Add(
GetEndingIndexOfNumberOrStringInsideBracketOnIndex(tmpEquation, op + lengthOfOperator) + 1);
// replace actual function with number chars
tmpEquation = tmpEquation.Remove(op, lengthOfOperator).Insert(op,
StringControl.GenerateStringOfNumberCharacters(lengthOfOperator));
}
// sort indexes for adding brackets from the end
DecreasingComparer decreasingComparer = new DecreasingComparer();
indexesForStartingBracket.Sort(decreasingComparer);
indexesForEndingBracket.Sort(decreasingComparer);
// adding brackets
while (indexesForStartingBracket.Any() || indexesForEndingBracket.Any())
{
if (!indexesForEndingBracket.Any() || indexesForStartingBracket.First() > indexesForEndingBracket.First())
{
equation = equation.Insert(indexesForStartingBracket.First(), "(");
indexesForStartingBracket.Remove(indexesForStartingBracket.First());
}
else
{
equation = equation.Insert(indexesForEndingBracket.First(), ")");
indexesForEndingBracket.Remove(indexesForEndingBracket.First());
}
}
return(equation);
}
/// <summary>
/// </summary>
/// <param name="equation">string containing equation</param>
/// <returns>equation without brackets but same size with number characters on place brackets and their content</returns>
private string ReplaceBracketsAndTheirContentWithNumberCharacters(string equation)
{
while (equation.Contains('('))
{
int startingIndex = equation.IndexOf('(');
int endingIndex = GetEndingBracketOfBracketOnIndex(equation, startingIndex);
int length = endingIndex - startingIndex + 1;
string numberChars = StringControl.GenerateStringOfNumberCharacters(length);
equation = equation.Remove(startingIndex, length).Insert(startingIndex, numberChars);
}
return(equation);
}
