protected virtual bool StringSubsetString( String left, String right, bool ignoreCase )
{
StringComparison strComp = (ignoreCase ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal);
if (right == null || left == null || right.Length == 0 || left.Length == 0 ||
right.Length > left.Length)
{
return false;
}
else if (right.Length == left.Length)
{
// if they are equal in length, just do a normal compare
return String.Compare( right, left, strComp) == 0;
}
else if (left.Length - right.Length == 1 && left[left.Length-1] == m_directorySeparator)
{
return String.Compare( left, 0, right, 0, right.Length, strComp) == 0;
}
else if (right[right.Length-1] == m_directorySeparator)
{
// right is definitely a directory, just do a substring compare
return String.Compare( right, 0, left, 0, right.Length, strComp) == 0;
}
else if (left[right.Length] == m_directorySeparator)
{
// left is hinting at being a subdirectory on right, do substring compare to make find out
return String.Compare( right, 0, left, 0, right.Length, strComp) == 0;
}
else
{
return false;
}
}
