360 lines
13 KiB
VB.net
360 lines
13 KiB
VB.net
#Region "Microsoft.VisualBasic::1f2f80fd4bd8364765e05a76063b428b, Microsoft.VisualBasic.Core\ApplicationServices\Terminal\STDIO__\STDIO.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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' Module STDIO
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'
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' Function: charTestEquals, MsgBox, scanf, ZeroFill
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'
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' Sub: cat, fprintf, print, printf
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' Delegate Function
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'
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' Function: InputPassword, Read
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'
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' Sub: Write, WriteLine
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'
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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 System.Runtime.CompilerServices
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Imports Microsoft.VisualBasic.ApplicationServices.Terminal.Utility
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Imports Microsoft.VisualBasic.Language.C
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Imports Microsoft.VisualBasic.Scripting.MetaData
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Imports Microsoft.VisualBasic.Text
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Namespace ApplicationServices.Terminal
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''' <summary>
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''' A standard input/output compatibility package that makes VisualBasic console
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''' program easily running on the Linux server or mac osx operating system.
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''' (一个用于让VisualBasic应用程序更加容易的运行于Linux服务器或者MAC系统之上的标准输入输出流的系统兼容包)
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''' </summary>
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''' <remarks></remarks>
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<Package("STDIO", Description:="A standard input/output compatibility package that makes VisualBasic console program easily running on the Linux server or mac osx operating system.",
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Publisher:="xie.guigang@live.com",
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Revision:=569,
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Url:="http://gcmodeller.org")>
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Public Module STDIO
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''' <summary>
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''' A dictionary list of the escape characters.(转义字符列表)
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''' </summary>
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''' <remarks></remarks>
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Dim escapings As New Dictionary(Of String, String) From {
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_
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{"\o", String.Empty},
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{"\n", vbCrLf},
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{"\r", vbCr},
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{"\t", vbTab},
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{"\v", String.Empty},
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{"\b", vbBack},
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{"\f", vbFormFeed},
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{"\'", ASCII.Quot},
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{"\" & ASCII.Quot, ASCII.Quot}
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}
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#Region "printf"
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''' <summary>
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''' Output the string to the console using a specific formation.
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''' (按照指定的格式将字符串输出到终端窗口之上，请注意，这个函数除了将数据流
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''' 输出到标准终端之外，还会输出到调试终端)
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''' </summary>
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''' <param name="s">A string to print on the console window.(输出到终端窗口之上的字符串)</param>
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''' <param name="args">Formation parameters.(格式化参数)</param>
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''' <remarks></remarks>
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'''
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Public Sub printf(s As String, ParamArray args As Object())
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s = sprintf(s, args)
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Console.Write(s)
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Call Trace.Write(s)
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Call Debug.Write(s)
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End Sub
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#End Region
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<Extension>
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Public Sub fprintf(Destination As TextWriter, Format As String, ParamArray Parameters As Object())
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Destination.Write(sprintf(Format, Parameters))
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End Sub
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Public Sub print(s As String, Optional color As ConsoleColor = ConsoleColor.White)
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Dim cl As ConsoleColor = Console.ForegroundColor
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Console.ForegroundColor = color
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Console.Write(s)
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Console.ForegroundColor = cl
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End Sub
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''' <summary>
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''' Alias for the <see cref="Console.Write"/>.(不换行)
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''' </summary>
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''' <param name="out"></param>
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''' <remarks></remarks>
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Public Sub cat(ParamArray out As String())
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Dim s As String = String.Join("", out)
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Call Console.Write(s)
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End Sub
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''' <summary>
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''' Read the string that user input on the console to the function paramenter.
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''' (将用户在终端窗口之上输入的数据赋值给一个字符串变量)
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''' </summary>
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''' <param name="s"></param>
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''' <returns></returns>
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''' <remarks></remarks>
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Public Function scanf(ByRef s As String, Optional color As ConsoleColor = ConsoleColor.White) As String
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Dim cl As ConsoleColor = Console.ForegroundColor
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Call Console.Write(s)
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Console.ForegroundColor = color
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s = Console.ReadLine
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Console.ForegroundColor = cl
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Return s
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End Function
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Const ____ZERO As String =
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"000000000000000000000000000000000000000000000000000000000000" &
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"000000000000000000000000000000000000000000000000000000000000" &
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"000000000000000000000000000000000000000000000000000000000000" &
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"000000000000000000000000000000000000000000000000000000000000" &
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"000000000000000000000000000000000000000000000000000000000000"
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''' <summary>
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''' Fill the number string with specific length of ZERO sequence to generates the fixed width string.
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''' </summary>
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''' <param name="sn"></param>
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''' <param name="len"></param>
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''' <returns></returns>
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Public Function ZeroFill(sn As String, len As Integer) As String
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If sn.Length >= len Then
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Return sn
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Else
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Dim d As Integer = len - sn.Length
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Dim zr As String = ____ZERO.Substring(0, d)
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Return zr & sn
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End If
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End Function
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''' <summary>
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'''
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''' </summary>
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''' <param name="prompt"></param>
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''' <param name="style">
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''' Value just allow:
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''' <see cref="MsgBoxStyle.AbortRetryIgnore"/>,
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''' <see cref="MsgBoxStyle.OkCancel"/>,
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''' <see cref="MsgBoxStyle.OkOnly"/>,
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''' <see cref="MsgBoxStyle.RetryCancel"/>,
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''' <see cref="MsgBoxStyle.YesNo"/>,
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''' <see cref="MsgBoxStyle.YesNoCancel"/></param>
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''' <returns></returns>
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Public Function MsgBox(prompt As String, Optional style As MsgBoxStyle = MsgBoxStyle.YesNo) As MsgBoxResult
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Dim [default] As String = ""
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Call Console.WriteLine(prompt)
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If style = MsgBoxStyle.AbortRetryIgnore Then
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Call Console.Write("Abort/Retry/Ignore?(a/r/i) [R]")
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[default] = "R"
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ElseIf style = MsgBoxStyle.OkCancel Then
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Call Console.Write("Ok/Cancel?(o/c) [O]")
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[default] = "O"
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ElseIf style = MsgBoxStyle.OkOnly Then
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Call Console.WriteLine("Press any key to continute...")
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Call Console.ReadKey()
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Return MsgBoxResult.Ok
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ElseIf style = MsgBoxStyle.RetryCancel Then
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Call Console.Write("Retry/Cancel?(r/c) [R]")
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[default] = "R"
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ElseIf style = MsgBoxStyle.YesNo Then
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Call Console.Write("Yes/No?(y/n) [Y]")
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[default] = "Y"
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ElseIf style = MsgBoxStyle.YesNoCancel Then
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Call Console.Write("Yes/No/Cancel?(y/n/c) [Y]")
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[default] = "Y"
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End If
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Call Console.Write(" ")
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Dim input As String = Console.ReadLine
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If String.IsNullOrEmpty(input) Then
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input = [default]
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Else
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input = input.ToUpper
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End If
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If style = MsgBoxStyle.AbortRetryIgnore Then
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If charTestEquals(input, "A"c) Then
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Return MsgBoxResult.Abort
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ElseIf charTestEquals(input, "R"c) Then
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Return MsgBoxResult.Retry
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ElseIf charTestEquals(input, "I"c) Then
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Return MsgBoxResult.Ignore
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Else
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Return MsgBoxResult.Retry
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End If
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ElseIf style = MsgBoxStyle.OkCancel Then
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If charTestEquals(input, "O"c) Then
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Return MsgBoxResult.Ok
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ElseIf charTestEquals(input, "C"c) Then
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Return MsgBoxResult.Cancel
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Else
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Return MsgBoxResult.Ok
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End If
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ElseIf style = MsgBoxStyle.OkOnly Then
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Return MsgBoxResult.Ok
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ElseIf style = MsgBoxStyle.RetryCancel Then
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If charTestEquals(input, "R"c) Then
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Return MsgBoxResult.Retry
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ElseIf charTestEquals(input, "C"c) Then
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Return MsgBoxResult.Cancel
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Else
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Return MsgBoxResult.Retry
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End If
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ElseIf style = MsgBoxStyle.YesNo Then
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If charTestEquals(input, "Y"c) Then
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Return MsgBoxResult.Yes
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ElseIf charTestEquals(input, "N"c) Then
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Return MsgBoxResult.No
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Else
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Return MsgBoxResult.Yes
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End If
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ElseIf style = MsgBoxStyle.YesNoCancel Then
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If charTestEquals(input, "Y"c) Then
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Return MsgBoxResult.Yes
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ElseIf charTestEquals(input, "N"c) Then
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Return MsgBoxResult.No
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ElseIf charTestEquals(input, "C"c) Then
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Return MsgBoxResult.Cancel
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Else
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Return MsgBoxResult.Yes
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End If
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Else
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Return MsgBoxResult.Ok
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End If
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End Function
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''' <summary>
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'''
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''' </summary>
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''' <param name="input"></param>
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''' <param name="compare">大写的</param>
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''' <returns></returns>
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Private Function charTestEquals(input As String, compare As Char) As Boolean
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If String.IsNullOrEmpty(input) Then
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Return False
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Else
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Return Asc(input.First) = Asc(compare)
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End If
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End Function
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Public Delegate Function TryParseDelegate(Of T)(str$, ByRef val As T) As Boolean
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''' <summary>
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''' Read Method with Generics & Delegate
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'''
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''' In a console application there is often the need to ask (and validate) some data from users.
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''' For this reason I have created a function that make use of generics and delegates to
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''' speed up programming.
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'''
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''' > http://www.codeproject.com/Tips/1108772/Read-Method-with-Generics-Delegate
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''' </summary>
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''' <typeparam name="T"></typeparam>
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''' <param name="msg"></param>
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''' <param name="parser"></param>
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''' <param name="_default"></param>
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''' <returns></returns>
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Public Function Read(Of T)(msg$, parser As TryParseDelegate(Of T), Optional _default$ = Nothing) As T
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Dim line As String
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Dim value As T
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Do
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Call Console.Write(msg)
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If Not _default.StringEmpty Then
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Call Console.Write($" <default={_default}>")
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End If
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Call Console.Write(": ")
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line = Console.ReadLine()
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If String.IsNullOrWhiteSpace(line) Then
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line = _default?.ToString()
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End If
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Loop While Not parser(line, value)
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Return value
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End Function
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''' <summary>
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''' Writes the text representation of the specified object to the standard output
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''' stream.
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''' </summary>
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''' <param name="o">The value to write, or null.</param>
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Public Sub Write(o As Object)
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If VBDebugger.ForceSTDError Then
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Call Console.Error.Write(o)
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Else
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Call Console.Write(o)
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End If
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End Sub
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''' <summary>
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''' Writes the text representation of the specified object, followed by the current
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''' line terminator, to the standard output stream.
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''' </summary>
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''' <param name="o">The value to write.</param>
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Public Sub WriteLine(Optional o As Object = Nothing)
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If VBDebugger.ForceSTDError Then
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Call Console.Error.WriteLine(o)
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Else
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Call Console.WriteLine(o)
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End If
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End Sub
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Public Function InputPassword(Optional prompt$ = "input your password", Optional maxLength% = 20) As String
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Dim pass$ = Nothing
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Call Console.Write(prompt & ": ")
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Call New ConsolePasswordInput().PasswordInput(pass, maxLength)
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Return pass
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End Function
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End Module
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End Namespace
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