/**
* Checks to see if user input is a valid Roman Numeral
*
* @param input User input of roman numeral
* @return a true or false value if validation is true or not
*/
public boolean validateRomanNumeral(CharacterStack stack) {
char[] input = new char[stack.getSize()];
counter++;
size[counter] = stack.getSize();
for (int ii = 0; ii < input.length; ii++) {
input[ii] = stack.pop();
}
Verifier verify = new Verifier(input);
int stringLength = input.length;
boolean validInput = verify.checkIndividualChar(input);
if (validInput == false) {
System.out.print("Error: ");
System.out.println("There is a character in your input that is not part of a Roman Numeral.");
System.out.println("");
return false;
} else {
// System.out.println("Check individualChar validation successful.");
if (stringLength == 1) {
return true;
} else {
boolean isThereRepeats = verify.checkThreeOrMoreNumerals(input);
if (isThereRepeats == true) {
System.out.print("Error: ");
System.out.println("There are more than three consecutive Roman characters.");
System.out.println("");
return false;
} else {
// System.out.println("Check for three or more numerals validation successful");
boolean validRepeats = verify.checkDuplicatesValidTens(input);
if (validRepeats == false) {
System.out.print("Error: ");
System.out.println("There is an invalid roman character consecutively entered");
System.out.println("");
return false;
} else {
// System.out.println("Check for valid tens power duplicates validation successful");
boolean invalidSmallPower = verify.checkPowerLeftOfNumeral(input);
if (invalidSmallPower == true) {
System.out.print("Error: ");
System.out.println(
"There is an invalid roman character left a larger roman character");
System.out.println("");
return false;
} else {
// System.out.println("Check for valid powers left of larger numbers successful.");
boolean invalidPower = verify.checkPowerFrontOfNumeral(input);
if (invalidPower == true) {
System.out.print("Error: ");
System.out.println(
"There is an invalid roman character front of a larger roman character");
System.out.println("");
return false;
} else {
// System.out.println("Check for valid powers front of larger numbers successful");
return true;
}
}
}
}
}
}
}
