public string[] CheckPairKeyValue(string line, string key, string value)
{
string[] lineData = line.Split(Symbols.EQUALITY);
const int N_LINE_DATA = 2;
// Check valid pair
RegexValidation.RegexPair(line, this);
if (lineData.Length == N_LINE_DATA)
{
return(lineData);
}
string message = $"No value for {key} can be found";
string actualValue = "null";
string expectedValue = $"{key}={value}";
Error error = new Error(
message,
actualValue,
expectedValue,
Filename,
LineNumber,
ErrorCode.MISSING_VALUE);
ErrorValidationManager.Errors.Add(error);
return(null);
}
public int ValidateIntegerPair(string line, string keyword)
{
string integer = null;
int returnedInteger = -1;
// Check whether the pair of key-value exists
string[] lineCountData = CheckPairKeyValue(line, keyword, "(an integer)");
// Check the line follows valid format
RegexValidation.RegexIntegerPair(line, this);
if (lineCountData != null)
{
integer = CheckTextValueExist(
lineCountData[1],
"null",
"An integer");
}
// Check whether the value is an integer
if (integer != null)
{
returnedInteger = CheckInteger(integer, keyword);
}
return(returnedInteger);
}
public double ValidateDoublePair(string line, string keyword)
{
string doubleNumber = null;
double returnedDouble = -1;
// Check whether the pair of key-value exists
string[] lineCountData = CheckPairKeyValue(line, keyword, "(a floating number)");
// Check the line follows valid format
RegexValidation.RegexDoublePair(line, this);
if (lineCountData != null)
{
doubleNumber = CheckTextValueExist(
lineCountData[1],
"null",
"A floating number");
}
// Check whether the value is an integer
if (doubleNumber != null)
{
returnedDouble = CheckDouble(doubleNumber, keyword);
}
return(returnedDouble);
}
public bool CheckExtension(string filePath, string expectedExtension)
{
string extractedExtension = Path.GetExtension(filePath);
string filename = Path.GetFileName(filePath);
bool validExtensionFormat = RegexValidation.RegexExtension(filename, this);
Error error = new Error();
if (!validExtensionFormat && extractedExtension == "")
{
error.Message = "File extension cannot be found";
error.ActualValue = "null";
error.ExpectedValue = $".{expectedExtension}";
error.Filename = Filename;
error.LineNumber = LineNumber;
error.ErrorCode = ErrorCode.INVALID_EXTENSION;
ErrorValidationManager.Errors.Add(error);
return(false);
}
if (extractedExtension == $".{expectedExtension}")
{
return(true);
}
error.Message = "The file extension is invalid";
error.ActualValue = extractedExtension;
error.ExpectedValue = $".{expectedExtension}";
error.Filename = Filename;
error.LineNumber = LineNumber;
error.ErrorCode = ErrorCode.INVALID_EXTENSION;
ErrorValidationManager.Errors.Add(error);
return(false);
}
