110 lines
3.5 KiB
VB.net
110 lines
3.5 KiB
VB.net
#Region "Microsoft.VisualBasic::891f0552ada4acc03a6ba0492cc131f9, Microsoft.VisualBasic.Core\ApplicationServices\Terminal\InteractiveIODevice\Shell.vb"
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' Author:
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'
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' asuka (amethyst.asuka@gcmodeller.org)
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' xie (genetics@smrucc.org)
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' xieguigang (xie.guigang@live.com)
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'
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' Copyright (c) 2018 GPL3 Licensed
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'
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'
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' GNU GENERAL PUBLIC LICENSE (GPL3)
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'
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'
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' This program is free software: you can redistribute it and/or modify
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' it under the terms of the GNU General Public License as published by
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' the Free Software Foundation, either version 3 of the License, or
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' (at your option) any later version.
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'
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' This program is distributed in the hope that it will be useful,
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' but WITHOUT ANY WARRANTY; without even the implied warranty of
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' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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' GNU General Public License for more details.
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'
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' You should have received a copy of the GNU General Public License
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' along with this program. If not, see <http://www.gnu.org/licenses/>.
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' /********************************************************************************/
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' Summaries:
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' Class Shell
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'
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' Properties: autoCompleteCandidates, dev, History, ps1, Quite
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' shell
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'
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' Constructor: (+1 Overloads) Sub New
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' Sub: Run
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'
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'
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' /********************************************************************************/
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#End Region
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Imports System.IO
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Imports Microsoft.VisualBasic.Language
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Imports Microsoft.VisualBasic.Language.UnixBash
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Namespace ApplicationServices.Terminal
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''' <summary>
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''' Shell model for console.
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''' </summary>
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Public Class Shell
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Public ReadOnly Property ps1 As PS1
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Public ReadOnly Property shell As Action(Of String)
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''' <summary>
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''' a candidate list for implements auto-complete for console input.
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''' </summary>
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''' <returns></returns>
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Public ReadOnly Property autoCompleteCandidates As New List(Of String)
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Public ReadOnly Property dev As TextReader
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''' <summary>
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''' Command text for exit the shell loop
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'''
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''' (默认的退出文本为vim的 ``:q`` 命令)
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''' </summary>
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''' <returns></returns>
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Public Property Quite As String = ":q"
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Public Property History As String = ":h"
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''' <summary>
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'''
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''' </summary>
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''' <param name="ps1">The commandline prompt prefix headers.</param>
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''' <param name="exec">How to execute the command line input.</param>
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Sub New(ps1 As PS1, exec As Action(Of String), Optional dev As TextReader = Nothing)
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Me.ps1 = ps1
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Me.shell = exec
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Me.dev = dev Or App.StdInput
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End Sub
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''' <summary>
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''' 执行一个配置好的命令行模型, 代码会被一直阻塞在这里
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''' </summary>
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Public Sub Run()
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Dim cli As Value(Of String) = ""
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Do While True
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Call Console.Write(ps1.ToString)
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If Strings.Trim((cli = Console.ReadLine)).StringEmpty Then
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Call _shell(cli)
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Continue Do
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End If
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If cli.Value.TextEquals(Quite) Then
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Exit Do
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Else
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Call _shell(cli)
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End If
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Loop
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End Sub
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End Class
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End Namespace
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