114 lines
3.4 KiB
VB.net
114 lines
3.4 KiB
VB.net
#Region "Microsoft.VisualBasic::8f8c6151177cfe095a53de8901e19930, Microsoft.VisualBasic.Core\Net\Tcp\IPTools\AddressEnumerator.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 AddressEnumerator
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'
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' Function: (+3 Overloads) EnumerateAddress, Enumerates
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'
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'
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' /********************************************************************************/
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#End Region
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Imports System.Runtime.CompilerServices
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Imports System.Text.RegularExpressions
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Namespace Net
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Public Module AddressEnumerator
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Public Iterator Function EnumerateAddress(a$, b$, c$) As IEnumerable(Of String)
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For i As Integer = 0 To 255
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Yield $"{a}.{b}.{c}.{i}"
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Next
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End Function
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Public Iterator Function EnumerateAddress(a$, b$) As IEnumerable(Of String)
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For i As Integer = 0 To 255
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For Each ip$ In EnumerateAddress(a, b, i)
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Yield ip
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Next
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Next
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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="expression$">
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''' Example as:
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'''
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''' ```
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''' 192.168.100.*
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''' 192.168.*.233
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''' 192.1-120.*.*
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''' ```
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''' </param>
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''' <returns></returns>
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'''
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<Extension>
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Public Iterator Function EnumerateAddress(expression$) As IEnumerable(Of String)
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Dim t$() = expression.Split("."c)
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For Each a$ In Enumerates(t(0))
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For Each b$ In Enumerates(t(1))
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For Each c$ In Enumerates(t(2))
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For Each d$ In Enumerates(t(3))
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Yield $"{a}.{b}.{c}.{d}"
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Next
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Next
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Next
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Next
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End Function
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Private Iterator Function Enumerates(expression$) As IEnumerable(Of String)
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Dim a%, b%
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If expression = "*" Then
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a = 0
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b = 255
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ElseIf Regex.Match(expression, "\d+-\d+").Value = expression Then
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Dim t$() = expression.Split("-"c)
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a = CInt(Val(t(Scan0)))
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b = CInt(Val(t(1)))
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Else
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a = CInt(Val(expression))
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b = a
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End If
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For i As Integer = a To b
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Yield CStr(i)
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Next
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End Function
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End Module
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End Namespace
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