// factory construct method
public static ExerciseProblem GetExerciseProblem(string FilePath)
{
// input from file
string[] Texts = null;
try
{
Texts = System.IO.File.ReadAllLines(FilePath);
}
catch (System.Exception FileException)
{
System.Console.WriteLine(FileException.Message);
return(null);
}
if (null == Texts || Texts.Length <= 0)
{
return(null);
}
// locate data
int NameIndex = ReadTextProblem.GetIdentifierIndex(Texts, NameIdentifier);
int DescriptionIndex = ReadTextProblem.GetIdentifierIndex(Texts, DescriptionIdentifier);
int CountsIndex = ReadTextProblem.GetIdentifierIndex(Texts, CountsIdentifier);
int InputIndex = ReadTextProblem.GetIdentifierIndex(Texts, InputIdentifier);
int OutputIndex = ReadTextProblem.GetIdentifierIndex(Texts, OutputIdentifier);
if (NameIndex == -1 ||
DescriptionIndex == -1 ||
CountsIndex == -1 ||
InputIndex == -1 ||
OutputIndex == -1)
{
return(null);
}
// read input from postitions
string Name = ReadTextProblem.ReadText(Texts, NameIndex, DescriptionIndex - 1);
string Description = ReadTextProblem.ReadText(Texts, DescriptionIndex, CountsIndex - 1);
int Counts = ReadTextProblem.ReadCounts(Texts, CountsIndex);
List <string> TestInputs = ReadTextProblem.ReadTestData(Texts, InputIndex, InputIndex + Counts);
List <string> TestOutputs = ReadTextProblem.ReadTestData(Texts, OutputIndex, OutputIndex + Counts);
if (TestInputs == null ||
TestOutputs == null ||
Counts < 1)
{
return(null);
}
// build an ExerciseProblem
ExerciseProblem problem = new ExerciseProblem(Name, Description, TestInputs, TestOutputs);
return(problem);
}
// constructors
// constructor: construct with a ExerciseProblem
public ExerciseSingle(ExerciseProblem problem) :
base(problem.Name)
{
this.Problem = (ExerciseProblem)problem.Clone();
}