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 |