116 lines
3.5 KiB
VB.net
116 lines
3.5 KiB
VB.net
#Region "Microsoft.VisualBasic::03039aa4ca689de63604b6c9fbe15425, Microsoft.VisualBasic.Core\CommandLine\Parsers\CLIParser.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 CLIParser
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'
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' Function: GetTokens
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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 Microsoft.VisualBasic.Emit.Marshal
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Imports Microsoft.VisualBasic.Language
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Imports Microsoft.VisualBasic.Scripting.TokenIcer
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Imports Microsoft.VisualBasic.Text
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Namespace CommandLine.Parsers
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''' <summary>
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''' 命令行单词解析器
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''' </summary>
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Public Module CLIParser
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''' <summary>
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''' 非正则表达式命令行解析引擎
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''' </summary>
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''' <param name="CLI$"></param>
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''' <returns></returns>
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''' <remarks>
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''' + 双引号表示一个完整的token
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''' + 空格为分隔符
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''' </remarks>
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<Extension> Public Function GetTokens(CLI$) As String()
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Dim buffer As New Pointer(Of Char)(CLI)
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Dim tokens As New List(Of String)
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Dim tmp As New List(Of Char)
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Dim c As Char
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Dim quotOpen As Boolean = False
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Do While Not buffer.EndRead
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c = (+buffer)
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If quotOpen Then
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' 双引号是结束符，但是可以使用\"进行转义
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If c <> ASCII.Quot Then
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tmp += c
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Else
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If tmp.StartEscaping Then
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tmp.RemoveLast
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tmp += c
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Else
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' 结束
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tokens += tmp.CharString
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tmp *= 0
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quotOpen = False
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End If
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End If
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Else
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If c = ASCII.Quot AndAlso tmp = 0 Then
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quotOpen = True
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ElseIf c = " "c Then
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' 分隔符
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If tmp <> 0 Then
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tokens += tmp.CharString
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tmp *= 0
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End If
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Else
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tmp += c
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End If
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End If
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Loop
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If tmp <> 0 Then
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tokens += New String(tmp)
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End If
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Return tokens
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End Function
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End Module
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End Namespace
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