| 1 | #Region "Microsoft.VisualBasic::41c12ad31e1a171ea9928ac4b9638f9a, Microsoft.VisualBasic.Core\Scripting\TokenIcer\LangModels\Token.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 | ' Class Token |
| 35 | ' |
| 36 | ' Properties: Arguments, Closure, IsClosure, IsFunction, IsNumeric |
| 37 | ' IsObject, name, Text, Type, UNDEFINED |
| 38 | ' Value |
| 39 | ' |
| 40 | ' Constructor: (+3 Overloads) Sub New |
| 41 | ' Function: GetValue, ToString |
| 42 | ' |
| 43 | ' Class Statement |
| 44 | ' |
| 45 | ' Properties: tokens, Trace |
| 46 | ' |
| 47 | ' Function: ToString |
| 48 | ' |
| 49 | ' Class Main |
| 50 | ' |
| 51 | ' Properties: program |
| 52 | ' |
| 53 | ' |
| 54 | ' /********************************************************************************/ |
| 55 | |
| 56 | #End Region |
| 57 | |
| 58 | Imports System.Xml.Serialization |
| 59 | Imports Microsoft.VisualBasic.Language |
| 60 | Imports Microsoft.VisualBasic.Text.Xml.Models |
| 61 | |
| 62 | Namespace Scripting.TokenIcer |
| 63 | |
| 64 | ''' <summary> |
| 65 | ''' a Token object class, This defines the Token object |
| 66 | ''' </summary> |
| 67 | ''' <typeparam name="Tokens">应该是枚举类型</typeparam> |
| 68 | ''' <remarks> |
| 69 | ''' A Token object holds the token and token value. |
| 70 | ''' </remarks> |
| 71 | Public Class Token(Of Tokens As IComparable) : Implements Value(Of String).IValueOf |
| 72 | |
| 73 | ''' <summary> |
| 74 | ''' Token type |
| 75 | ''' </summary> |
| 76 | ''' <returns></returns> |
| 77 | <XmlAttribute("name")> Public Property name As Tokens |
| 78 | |
| 79 | ''' <summary> |
| 80 | ''' 函数参数列表 |
| 81 | ''' </summary> |
| 82 | ''' <returns></returns> |
| 83 | Public Property Arguments As Statement(Of Tokens)() |
| 84 | ''' <summary> |
| 85 | ''' 这个token所拥有的闭包下一级代码,这个属性的值可以看作为具体的函数体 |
| 86 | ''' </summary> |
| 87 | ''' <returns></returns> |
| 88 | Public Property Closure As Main(Of Tokens) |
| 89 | |
| 90 | ''' <summary> |
| 91 | ''' The text that makes up the token. |
| 92 | ''' </summary> |
| 93 | ''' <returns></returns> |
| 94 | <XmlText> Public Property Value As String Implements Value(Of String).IValueOf.value |
| 95 | |
| 96 | ''' <summary> |
| 97 | ''' You must keep the UNDEFINED type equals to ZERO!. |
| 98 | ''' (务必要保持0为未定义,如果不是使用零来定义未定义类型,则不能够使用这个属性来判断) |
| 99 | ''' </summary> |
| 100 | ''' <returns></returns> |
| 101 | Public ReadOnly Property UNDEFINED(Optional int% = 0) As Boolean |
| 102 | Get |
| 103 | If TypeOf name Is [Enum] OrElse TypeOf name Is Integer Then |
| 104 | Dim o As Object = name |
| 105 | Dim i As Integer = CInt(o) |
| 106 | If i = int Then |
| 107 | Return True |
| 108 | End If |
| 109 | End If |
| 110 | |
| 111 | Return name Is Nothing OrElse |
| 112 | String.IsNullOrEmpty(Value) |
| 113 | End Get |
| 114 | End Property |
| 115 | |
| 116 | ''' <summary> |
| 117 | ''' The token type, this property is an alias of <see cref="name"/> property |
| 118 | ''' </summary> |
| 119 | ''' <returns></returns> |
| 120 | Public ReadOnly Property Type As Tokens |
| 121 | Get |
| 122 | Return name |
| 123 | End Get |
| 124 | End Property |
| 125 | |
| 126 | ''' <summary> |
| 127 | ''' Gets the text value that make up this token value, this readonly property |
| 128 | ''' is an alias of the <see cref="Value"/> property. |
| 129 | ''' </summary> |
| 130 | ''' <returns></returns> |
| 131 | Public ReadOnly Property Text As String |
| 132 | Get |
| 133 | Return Value |
| 134 | End Get |
| 135 | End Property |
| 136 | |
| 137 | ''' <summary> |
| 138 | ''' Returns a Boolean value indicating whether an expression can be evaluated as |
| 139 | ''' a number. |
| 140 | ''' </summary> |
| 141 | ''' <returns></returns> |
| 142 | Public ReadOnly Property IsNumeric As Boolean |
| 143 | Get |
| 144 | Return Information.IsNumeric(Text) |
| 145 | End Get |
| 146 | End Property |
| 147 | |
| 148 | Public ReadOnly Property IsFunction As Boolean |
| 149 | Get |
| 150 | Return Not Arguments.IsNullOrEmpty |
| 151 | End Get |
| 152 | End Property |
| 153 | |
| 154 | Public ReadOnly Property IsClosure As Boolean |
| 155 | Get |
| 156 | Return Not Closure Is Nothing |
| 157 | End Get |
| 158 | End Property |
| 159 | |
| 160 | ''' <summary> |
| 161 | ''' This token object eigther not a function and not a closure. |
| 162 | ''' </summary> |
| 163 | ''' <returns></returns> |
| 164 | Public ReadOnly Property IsObject As Boolean |
| 165 | Get |
| 166 | Return Not IsClosure AndAlso Not IsFunction |
| 167 | End Get |
| 168 | End Property |
| 169 | |
| 170 | Public Sub New(name As Tokens, value$) |
| 171 | Me.name = name |
| 172 | Me.Value = value |
| 173 | End Sub |
| 174 | |
| 175 | Sub New(name As Tokens) |
| 176 | Me.name = name |
| 177 | End Sub |
| 178 | |
| 179 | Sub New() |
| 180 | End Sub |
| 181 | |
| 182 | Public Overrides Function ToString() As String |
| 183 | If UNDEFINED Then |
| 184 | Return "* " & Value |
| 185 | Else |
| 186 | Return $"[{name}] {Value}" |
| 187 | End If |
| 188 | End Function |
| 189 | |
| 190 | Public Function GetValue() As Object |
| 191 | Return Me.TryCast |
| 192 | End Function |
| 193 | End Class |
| 194 | |
| 195 | ''' <summary> |
| 196 | ''' The statement line that parsing from the script text |
| 197 | ''' </summary> |
| 198 | Public Class Statement(Of T As IComparable) |
| 199 | |
| 200 | <XmlElement("t")> Public Property tokens As Token(Of T)() |
| 201 | ''' <summary> |
| 202 | ''' The script text raw data? |
| 203 | ''' </summary> |
| 204 | ''' <returns></returns> |
| 205 | Public Property Trace As LineValue |
| 206 | |
| 207 | Public Overrides Function ToString() As String |
| 208 | Return tokens _ |
| 209 | .Select(Function(t) t.ToString) _ |
| 210 | .JoinBy(" ") |
| 211 | End Function |
| 212 | End Class |
| 213 | |
| 214 | ''' <summary> |
| 215 | ''' inner closure or program main |
| 216 | ''' </summary> |
| 217 | ''' <typeparam name="T"></typeparam> |
| 218 | Public Class Main(Of T As IComparable) |
| 219 | Public Property program As Statement(Of T)() |
| 220 | End Class |
| 221 | End Namespace |