/// <summary>
/// Initializes a new instance of the <see cref="FormattedInteger"/> class.
/// </summary>
/// <param name="integerBase">The base.</param>
/// <param name="sign">The optional sign.</param>
/// <param name="leadingZeroCount">The number of leading zeroes.</param>
/// <param name="integerText">The integer text..</param>
/// <param name="invalidText">The trailing invalid text, if any.</param>
/// <param name="canonical">The canonical form of the number.</param>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="leadingZeroCount"/> is lesser than zero.</exception>
internal FormattedInteger(IIntegerBase integerBase, OptionalSign sign, int leadingZeroCount, string integerText, string invalidText, CanonicalNumber canonical)
: base(invalidText, canonical)
{
IntegerBase = integerBase;
Sign = sign;
LeadingZeroCount = leadingZeroCount;
IntegerText = integerText;
if (leadingZeroCount < 0)
{
throw new ArgumentOutOfRangeException(nameof(leadingZeroCount));
}
}
private static string ConvertFromBinary(string text, IIntegerBase toBase)
{
Debug.Assert(!string.IsNullOrEmpty(text));
string Result = "0";
for (int i = 0; i < text.Length; i++)
{
bool AddCarry = text[i] != '0';
Result = toBase.MultipliedByTwo(Result, AddCarry);
}
return(Result);
}
private static string ConvertToBinary(string text, IIntegerBase fromBase)
{
Debug.Assert(!string.IsNullOrEmpty(text));
string Number = text;
string Result = string.Empty;
do
{
Number = fromBase.DividedByTwo(Number, out bool HasCarry);
Result = (HasCarry ? "1" : "0") + Result;
}while (Number != "0");
return(Result);
}
/// <summary>
/// Returns the value of <paramref name="text"/> converted to a new base.
/// </summary>
/// <param name="text">The number to convert.</param>
/// <param name="fromBase">The base in which <paramref name="text"/> is encoded.</param>
/// <param name="toBase">The base in which the returned number is encoded.</param>
public static string Convert(string text, IIntegerBase fromBase, IIntegerBase toBase)
{
return(ConvertFromBinary(ConvertToBinary(text, fromBase), toBase));
}
