public string RenameFile(IFileMetaData FileName, int Position, NameExtensionHelper Helper)
{
Helper.Text = FileName.Name;
string numberString;
int num = Position + _start;
// Format the position number into the correct format
switch (_numberFormat)
{
case NumberingFormat.LowercaseLetters:
numberString = StringNumberConversions.NumberToString(num);
break;
case NumberingFormat.OneZero:
numberString = InsertZeros(num, 1);
break;
case NumberingFormat.TwoZeros:
numberString = InsertZeros(num, 2);
break;
case NumberingFormat.ThreeZeros:
numberString = InsertZeros(num, 3);
break;
case NumberingFormat.NoZeros:
goto default;
default:
numberString = num.ToString();
break;
}
// This function determines the text format, we will pass it to modify in the NameExtensionHelper
Func <String, String> _textFormatFn;
switch (_textFormat)
{
case NumberingTextFormat.NumberText:
_textFormatFn = (OldName) => numberString + _text;
break;
case NumberingTextFormat.NumberTextOldName:
_textFormatFn = (OldName) => numberString + _text + OldName;
break;
case NumberingTextFormat.OldNameTextNumber:
_textFormatFn = (OldName) => OldName + _text + numberString;
break;
case NumberingTextFormat.TextNumber:
goto default;
default:
_textFormatFn = (OldName) => _text + numberString;
break;
}
return(Helper.Modify(_textFormatFn));
}
// The start string is often a number, however for some alphabetic orderings
// it is not a number. This method will convert the string to the correct number
private void FixStartString()
{
// First try to parse start as an int.
if (!Int32.TryParse(_startString, out _start))
{
// if that fails, see if we are using the lowercase numbering format
if (_numberFormat == NumberingFormat.LowercaseLetters)
{
_start = StringNumberConversions.StringToNumber(_startString);
}
else
{
// otherwise default to starting at 1
_start = 1;
}
}
}
