singrdk/base/Applications/NameSpace/AtomicTestDSP/Path.sg

85 lines
2.0 KiB
Plaintext

////////////////////////////////////////////////////////////////////////////////
//
// Microsoft Research Singularity
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// File: Nameserver.cs
//
// Note:
//
using System;
using System.Collections;
using System.Runtime.Remoting;
using System.Runtime.InteropServices;
using System.Threading;
using Microsoft.SingSharp;
using Microsoft.Singularity;
using Microsoft.Singularity.Channels;
#if !SINGULARITY_PROCESS
namespace Microsoft.Singularity.Directory
#else
namespace Microsoft.Application.DSP
#endif
{
public class Path
{
ArrayList elts;
public Path(String! s)
{
string[] sa = s.Split("/".ToCharArray());
ArrayList elts = this.elts = new ArrayList(sa);
elts.RemoveAt(0); // since paths start with a slash, the first one will be empty
}
public bool Empty { get { return this.elts.Count == 0; } }
public int Length()
{
return elts.Count;
}
public String StripLast()
{
int pos = elts.Count - 1;
String s = (String)elts[pos];
elts.RemoveAt(pos);
return s;
}
public void Append(String elt)
{
elts.Add(elt);
}
public String FirstElement()
{
return (String)elts[0];
}
public void RemoveFirstElement()
{
elts.RemoveAt(0);
}
public String! PathString()
{
String result = "";
IEnumerator e = elts.GetEnumerator();
while (e.MoveNext()) {
result += "/" + e.Current;
}
return result;
}
public char[]! in ExHeap PathVector()
{
String result = PathString();
return Bitter.FromString2(result);
}
}
}