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N88BASICが簡単に動くインタープリタを目指します。


コミットメタ情報

リビジョン22 (tree)
日時2018-09-27 17:51:41
作者bellyoshi

ログメッセージ

変更サマリ

差分

--- trunk/csmock/WindowsFormsApp1/getToken/Program.cs (revision 21)
+++ trunk/csmock/WindowsFormsApp1/getToken/Program.cs (revision 22)
@@ -10,12 +10,8 @@
1010 {
1111 static void Main(string[] args)
1212 {
13- var tg = new TokenGetter();
14- var token = tg.NextToken();
15- while (!token.isEof()) {
16- Console.WriteLine(token.ToString());
17- token = tg.NextToken();
18- }
13+ var c = new compile();
14+ c.DoComple();
1915 }
2016 }
2117 }
--- trunk/csmock/WindowsFormsApp1/getToken/Token.cs (revision 21)
+++ trunk/csmock/WindowsFormsApp1/getToken/Token.cs (revision 22)
@@ -19,14 +19,15 @@
1919 DoubleQuote,//"
2020 Lss, Gtr,// < >
2121 Letter, Digit, Colon, Others,
22- EndOfFile
22+ EndOfLine, EndOfFile
2323 }
2424 class Token
2525 {
26- TokenType tokenType;
27- int src_line;
28- int src_col;
29- string src_str;
26+ public TokenType TokenType { get; }
27+
28+ public int src_line { get; }
29+ public int src_col { get; }
30+ public string src_str { get; }
3031 public bool isEof()
3132 {
3233 return src_str == ";";//"とりあえずセミコロンで終わる。
@@ -36,11 +37,11 @@
3637 this.src_col = src_col;
3738 this.src_line = src_line;
3839 this.src_str = src_str;
39- this.tokenType = t;
40+ this.TokenType = t;
4041 }
4142 public override string ToString()
4243 {
43- return $"{tokenType}:line={src_line}:col={src_col}:{src_str}";
44+ return $"{TokenType}:line={src_line}:col={src_col}:{src_str}";
4445 }
4546 }
4647 }
--- trunk/csmock/WindowsFormsApp1/getToken/TokenGetter.cs (revision 21)
+++ trunk/csmock/WindowsFormsApp1/getToken/TokenGetter.cs (revision 22)
@@ -64,8 +64,9 @@
6464 case '>': return Gtr;
6565 case ',': return Comma;
6666 case '.': return Period;
67- case '"': return DoubleQuote;
67+ case '"': return DoubleQuote;
6868 case ';': return EndOfFile;//test用 Semicolon;
69+ case '\n': return EndOfLine;
6970 case ':': return Colon;
7071 default:
7172 break;
@@ -96,7 +97,7 @@
9697
9798 public TokenType NextTokenType()
9899 {
99- while (curChar == ' ' || curChar == '\t')
100+ while (curChar == ' ' || curChar == '\t' || curChar == '\r')
100101 {
101102 NextChar();
102103 }
@@ -105,10 +106,6 @@
105106 {
106107 src_str = "\\n";
107108 }
108- if (curChar == '\r')
109- {
110- src_str = "\\r";
111- }
112109 var t = getCurCharType();
113110 NextChar();
114111 switch (t)
--- trunk/csmock/WindowsFormsApp1/getToken/compile.cs (nonexistent)
+++ trunk/csmock/WindowsFormsApp1/getToken/compile.cs (revision 22)
@@ -0,0 +1,257 @@
1+using System;
2+using System.Collections.Generic;
3+using System.Linq;
4+using System.Text;
5+using System.Threading.Tasks;
6+
7+namespace getToken
8+{
9+ class compile
10+ {
11+ TokenGetter tg = new TokenGetter();
12+ Token nextToken;
13+ private void next()
14+ {
15+ nextToken = tg.NextToken();
16+ }
17+ /// <summary>
18+ /// コンパイルする
19+ /// </summary>
20+ /// <returns>true:コンパイル成功</returns>
21+ public bool DoComple(){
22+ Console.WriteLine("start compile");
23+ next();
24+ while (! nextToken.isEof() )
25+ {
26+ statement();
27+ }
28+ return true;
29+ }
30+
31+ public void statement()
32+ {
33+ switch (nextToken.TokenType)
34+ {
35+ case TokenType.abn88_line:
36+ next();
37+ s_abn88_Line();
38+ break;
39+ case TokenType.abn88_print:
40+ next();
41+ s_abn88_Print();
42+ break;
43+ }
44+ }
45+
46+ public void s_abn88_Line()
47+ {
48+ Console.Write("n88.Line(");
49+ if (nextToken.TokenType == TokenType.Lparen)
50+ {
51+ next();
52+ }
53+ else
54+ {
55+ syntaxError();
56+ return;
57+ }
58+ expression();//pt_start_x
59+ if (nextToken.TokenType == TokenType.Comma)
60+ {
61+ Console.Write(",");
62+ next();
63+ }
64+ else
65+ {
66+ syntaxError();
67+ return;
68+ }
69+ expression();//pt_start_y
70+ if(nextToken.TokenType == TokenType.Rparen)
71+ {
72+ Console.Write(",");
73+ next();
74+ }
75+ else
76+ {
77+ syntaxError();
78+ return;
79+ }
80+ if (nextToken.TokenType == TokenType.Minus)
81+ {
82+ next();
83+ }
84+ else
85+ {
86+ syntaxError();
87+ return;
88+ }
89+ if (nextToken.TokenType == TokenType.Lparen)
90+ {
91+ next();
92+ }
93+ else
94+ {
95+ syntaxError();
96+ return;
97+ }
98+ expression();//pt_end_x
99+ if(nextToken.TokenType == TokenType.Comma)
100+ {
101+ Console.Write(",");
102+ next();
103+ }
104+ else
105+ {
106+ syntaxError();
107+ return;
108+ }
109+ expression();//pt_end_y
110+ if (nextToken.TokenType == TokenType.Rparen)
111+ {
112+ next();
113+ }
114+ else
115+ {
116+ syntaxError();
117+ return;
118+ }
119+ if (nextToken.TokenType == TokenType.Comma)
120+ {
121+ next();
122+ Console.Write(",");
123+ expression();//color
124+ }
125+ else
126+ {
127+ next();
128+ Console.WriteLine(")");
129+ return;
130+ }
131+ if (nextToken.TokenType == TokenType.Comma)
132+ {
133+ next();
134+ Console.Write(",");
135+ }
136+ else
137+ {
138+ next();
139+ Console.WriteLine(")");
140+ return;
141+ }
142+ if (nextToken.TokenType == TokenType.identifier
143+ && (nextToken.src_str == "B" || nextToken.src_str == "BF"))
144+ {
145+ Console.Write(",");
146+ Console.Write($"LineBF.{nextToken.src_str}");
147+ next();
148+ }
149+ if (nextToken.TokenType == TokenType.Comma)
150+ {
151+ Console.Write(",");
152+ expression();//color2
153+ }
154+ Console.WriteLine(")");
155+ next();
156+ }
157+ void expression()
158+ {
159+ TokenType t = nextToken.TokenType;
160+ if (t == TokenType.Plus || t == TokenType.Minus)
161+ {
162+ next();
163+ term();
164+ if (t == TokenType.Minus)
165+ {
166+ //gencode neg
167+ Console.Write("-");
168+ }
169+ }
170+ else
171+ {
172+ term();
173+ }
174+ t = nextToken.TokenType;
175+ while(t == TokenType.Plus || t == TokenType.Minus)
176+ {
177+ if (t == TokenType.Minus)
178+ {
179+ //gencode sub
180+ Console.Write("-");
181+ }
182+ else
183+ {
184+ //gencode add
185+ Console.Write("+");
186+ }
187+ next();
188+ term();
189+ t = nextToken.TokenType;
190+ }
191+ }
192+ void term() {
193+
194+ factor();
195+ var t = nextToken.TokenType;
196+ while(t == TokenType.Mult || t == TokenType.Div)
197+ {
198+ if (t == TokenType.Mult)
199+ {
200+ //gencode mul
201+ Console.Write("*");
202+ }
203+ else
204+ {
205+ //gencode div
206+ Console.Write("/");
207+ }
208+ next();
209+ factor();
210+
211+ }
212+ }
213+ void factor()
214+ {
215+ if (nextToken.TokenType == TokenType.identifier)
216+ {
217+ Console.Write(nextToken.src_str);
218+ next();
219+ }
220+ if (nextToken.TokenType == TokenType.int_value)
221+ {
222+ Console.Write(nextToken.src_str);
223+ next();
224+ }
225+ if (nextToken.TokenType == TokenType.double_value)
226+ {
227+ Console.Write(nextToken.src_str);
228+ next();
229+ }
230+ if(nextToken.TokenType == TokenType.Lparen)
231+ {
232+ next();
233+ expression();
234+ if(nextToken.TokenType == TokenType.Rparen)
235+ {
236+ next();
237+ return;
238+ }
239+ else
240+ {
241+ syntaxError();
242+ }
243+ }
244+ }
245+
246+
247+ public void s_abn88_Print()
248+ {
249+
250+ }
251+
252+ void syntaxError()
253+ {
254+ Console.WriteLine($"syntax error:line {nextToken.src_line}, col {nextToken.src_col}, {nextToken.src_str}");
255+ }
256+ }
257+}