Repository navigation
Expand file tree
/
Copy pathCommandLineHistory.cs
More file actions
89 lines (82 loc) · 2.29 KB
/
Copy pathCommandLineHistory.cs
File metadata and controls
89 lines (82 loc) · 2.29 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
// Copyright (c) 2010 Joe Moorhouse
using System;
using System.Collections.Generic;
namespace PythonConsoleControl
{
/// <summary>
/// Stores the command line history for the PythonConsole.
/// </summary>
public class CommandLineHistory
{
private List<string> lines = new List<string>();
private int position;
public CommandLineHistory()
{
}
/// <summary>
/// Adds the command line to the history.
/// </summary>
public void Add(string line)
{
if (!String.IsNullOrEmpty(line))
{
int index = lines.Count - 1;
if (index >= 0)
{
if (lines[index] != line)
{
lines.Add(line);
}
}
else
{
lines.Add(line);
}
}
position = lines.Count;
}
/// <summary>
/// Gets the current command line. By default this will be the last command line entered.
/// </summary>
public string Current
{
get
{
if ((position >= 0) && (position < lines.Count))
{
return lines[position];
}
return null;
}
}
/// <summary>
/// Moves to the next command line.
/// </summary>
/// <returns>False if the current position is at the end of the command line history.</returns>
public bool MoveNext()
{
int nextPosition = position + 1;
if (nextPosition < lines.Count)
{
++position;
}
return nextPosition < lines.Count;
}
/// <summary>
/// Moves to the previous command line.
/// </summary>
/// <returns>False if the current position is at the start of the command line history.</returns>
public bool MovePrevious()
{
if (position >= 0)
{
if (position == 0)
{
return false;
}
--position;
}
return position >= 0;
}
}
}