private string CreateDuplicateName(ZipWrapper zip, string filename)
{
if (string.IsNullOrEmpty(filename))
return string.Empty;
using (Chilkat.ZipEntry zipEntry = zip.GetEntryByName(filename))
{
if (null == zipEntry)
return filename;
}
StringBuilder newFilename;
if (filename.Contains("(") && filename.Contains(")"))
{
int startIndex = filename.LastIndexOf('(') + 1;
int endIndex = filename.IndexOf(')', startIndex);
if (-1 != endIndex)
{
string stringValue = filename.Substring(startIndex, endIndex - startIndex);
int count;
if (ConvertToInt(stringValue, out count))
{
count++;
newFilename = new StringBuilder(filename.Substring(0, startIndex));
newFilename.Append(Convert.ToString(count));
newFilename.Append(filename.Substring(endIndex));
return CreateDuplicateName(zip, newFilename.ToString());
}
}
}
newFilename = new StringBuilder(Path.GetFileNameWithoutExtension(filename));
newFilename.Append("(1)");
newFilename.Append(Path.GetExtension(filename));
return CreateDuplicateName(zip, newFilename.ToString());
}
