/// <summary>
/// Removes the path info passes as a parameter from the current root. Only works for two rooted paths with same root.
/// Does NOT cover all edge cases, please verify its intended results yourself.
/// <example>
/// </example>
/// </summary>
/// <param name = "other"></param>
/// <returns></returns>
public string RemoveParameterFromRoot(PathInfo other)
{
Contract.Requires(Root == other.Root, "roots must match to be able to subtract");
Contract.Requires(FolderAndFiles.Length >= other.FolderAndFiles.Length,
"The folders and files part of the parameter must be shorter or equal to in length, than that path you wish to subtract from.");
if (other.FolderAndFiles == FolderAndFiles)
{
return(string.Empty);
}
var startIndex = other.FolderAndFiles.Length;
Contract.Assume(startIndex <= FolderAndFiles.Length);
var substring = FolderAndFiles.Substring(startIndex);
return(substring.TrimStart(Path.GetDirectorySeparatorChars()));
}
/// <summary>
/// Removes the path info passes as a parameter from the current root. Only works for two rooted paths with same root.
/// Does NOT cover all edge cases, please verify its intended results yourself.
/// <example>
///
/// </example>
/// </summary>
/// <param name="other"></param>
/// <returns></returns>
public string RemoveParameterFromRoot(PathInfo other)
{
if (Root != other.Root)
{
throw new InvalidOperationException("Roots of this and other don't match.");
}
if (other.FolderAndFiles.Length > FolderAndFiles.Length)
{
throw new InvalidOperationException(
"The folders and files part of the second parameter must be shorter than that path you wish to subtract from.");
}
if (other.FolderAndFiles == FolderAndFiles)
{
return(string.Empty);
}
return(FolderAndFiles.Substring(other.FolderAndFiles.Length).TrimStart(Path.GetDirectorySeparatorChars()));
}
