| 1 | #Region "Microsoft.VisualBasic::c4d7eb501c6878ec67a094d8ee87992b, Microsoft.VisualBasic.Core\CommandLine\Parsers\CLIParser.vb" |
| 2 | |
| 3 | ' Author: |
| 4 | ' |
| 5 | ' asuka (amethyst.asuka@gcmodeller.org) |
| 6 | ' xie (genetics@smrucc.org) |
| 7 | ' xieguigang (xie.guigang@live.com) |
| 8 | ' |
| 9 | ' Copyright (c) 2018 GPL3 Licensed |
| 10 | ' |
| 11 | ' |
| 12 | ' GNU GENERAL PUBLIC LICENSE (GPL3) |
| 13 | ' |
| 14 | ' |
| 15 | ' This program is free software: you can redistribute it and/or modify |
| 16 | ' it under the terms of the GNU General Public License as published by |
| 17 | ' the Free Software Foundation, either version 3 of the License, or |
| 18 | ' (at your option) any later version. |
| 19 | ' |
| 20 | ' This program is distributed in the hope that it will be useful, |
| 21 | ' but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | ' MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 23 | ' GNU General Public License for more details. |
| 24 | ' |
| 25 | ' You should have received a copy of the GNU General Public License |
| 26 | ' along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 27 | |
| 28 | |
| 29 | |
| 30 | ' /********************************************************************************/ |
| 31 | |
| 32 | ' Summaries: |
| 33 | |
| 34 | ' Module CLIParser |
| 35 | ' |
| 36 | ' Function: GetTokens |
| 37 | ' |
| 38 | ' |
| 39 | ' /********************************************************************************/ |
| 40 | |
| 41 | #End Region |
| 42 | |
| 43 | Imports System.Runtime.CompilerServices |
| 44 | Imports Microsoft.VisualBasic.Emit.Marshal |
| 45 | Imports Microsoft.VisualBasic.Language |
| 46 | Imports Microsoft.VisualBasic.Scripting.TokenIcer |
| 47 | Imports Microsoft.VisualBasic.Text |
| 48 | |
| 49 | Namespace CommandLine.Parsers |
| 50 | |
| 51 | ''' <summary> |
| 52 | ''' 命令行单词解析器 |
| 53 | ''' </summary> |
| 54 | Public Module CLIParser |
| 55 | |
| 56 | ''' <summary> |
| 57 | ''' 非正则表达式命令行解析引擎 |
| 58 | ''' </summary> |
| 59 | ''' <param name="CLI$"></param> |
| 60 | ''' <returns></returns> |
| 61 | ''' <remarks> |
| 62 | ''' + 双引号表示一个完整的token |
| 63 | ''' + 空格为分隔符 |
| 64 | ''' </remarks> |
| 65 | <Extension> Public Function GetTokens(CLI$) As String() |
| 66 | Dim buffer As New Pointer(Of Char)(CLI) |
| 67 | Dim tokens As New List(Of String) |
| 68 | Dim tmp As New List(Of Char) |
| 69 | Dim c As Char |
| 70 | Dim quotOpen As Boolean = False |
| 71 | |
| 72 | Do While Not buffer.EndRead |
| 73 | c = (+buffer) |
| 74 | |
| 75 | If quotOpen Then |
| 76 | |
| 77 | ' 双引号是结束符,但是可以使用\"进行转义 |
| 78 | If c <> ASCII.Quot Then |
| 79 | tmp += c |
| 80 | Else |
| 81 | If tmp.StartEscaping Then |
| 82 | tmp.RemoveLast |
| 83 | tmp += c |
| 84 | Else |
| 85 | ' 结束 |
| 86 | tokens += tmp.CharString |
| 87 | tmp *= 0 |
| 88 | quotOpen = False |
| 89 | |
| 90 | End If |
| 91 | End If |
| 92 | |
| 93 | Else |
| 94 | If c = ASCII.Quot AndAlso tmp = 0 Then |
| 95 | quotOpen = True |
| 96 | ElseIf c = " "c Then |
| 97 | ' 分隔符 |
| 98 | If tmp <> 0 Then |
| 99 | tokens += tmp.CharString |
| 100 | tmp *= 0 |
| 101 | End If |
| 102 | Else |
| 103 | tmp += c |
| 104 | End If |
| 105 | End If |
| 106 | Loop |
| 107 | |
| 108 | If tmp <> 0 Then |
| 109 | tokens += New String(tmp) |
| 110 | End If |
| 111 | |
| 112 | Return tokens |
| 113 | End Function |
| 114 | End Module |
| 115 | End Namespace |