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compiler-experiments

To store the code of compiler experiment courses in nwpu.

借鉴请star :)

How to run

For lexer:

java -jar lab1-lexer/lexical-scanner/lexer.jar test-file.txt output.txt error.txt

For parser:

node lab2-parser/dfa-builder/mjava-parser.js test-file.txt

For LALR(1) DFA bulider, it will read tools/syntax.txt as target program syntax such as mjava in this course:

cd lab2-parser/dfa-builder
node builder.js

then you will get:

  1. out/dfa.dot, the file describe the DFA of target syntax.

    you can run dot -Tpng dfa.dot -o dfa.png to get the image of DFA.

  2. out/states.json and out/edges.json, store the states and edges of DFA.

  3. out/action.json and out/goto.json, the action table and goto table.

Main ideas

Lexer

手动设计自动机，识别词素。

详见词法分析设计方案-状态转换图.pdf

Parser

  1. 设计AST

    设计实现抽象语法树, 同时实现了一种简洁的输出方式。

  2. 实现LALR(1)自动机的生成

    完成泛用性较高的 LALR(1) 自动机的生成代码, LALR(1) 自动机是 Simple LALR(2) 的基础。

  3. 实现Simple LALR(2)语法分析算法

    因为 LALR(1) 不能满足给定的文法,于是基于其提出 Simple LALR(2) 方法, 它对 LALR(1) 做了一个简单升级。

详⻅语法分析设计方案-SimpleLALR2方法与抽象语法树.pdf

Structure

.
├── dfa-builder
│   ├── builder.js
│   ├── mjava-parser.js
│   ├── out
│   │   ├── action.json
│   │   ├── builder.log
│   │   ├── dfa.dot
│   │   ├── dfa.png
│   │   ├── edges.json
│   │   ├── goto.json
│   │   ├── states.json
│   │   └── time.log
│   ├── samples
│   │   ├── err.txt
│   │   └── out.txt
│   ├── testcase
│   │   ├── ClassDeclaration
│   │   ├── custom
│   │   ├── Expression
│   │   ├── Goal
│   │   ├── MainClass
│   │   ├── MethodDeclaration
│   │   ├── Statement
│   │   ├── Type
│   │   └── VarDeclaration
│   ├── tools
│   │   ├── lexer.jar
│   │   ├── scala-library-2.13.0.jar
│   │   ├── syntax-parser.js
│   │   ├── syntax.peg
│   │   └── syntax.txt
│   └── type.js
├── documents
│   ├── ast.dot
│   ├── ast-parser.js
│   ├── ast.peg
│   ├── readme.md
│   ├── readme.pdf
│   └── split.js
├── readme.pdf
└── 语法分析-实验要求
    ├── syntax.txt
    ├── 语法
    │   ├── ClassDeclaration
    │   ├── Expression
    │   ├── Goal
    │   ├── MainClass
    │   ├── MethodDeclaration
    │   ├── Statement
    │   ├── Type
    │   └── VarDeclaration
    ├── 语法分析程序撰写.zip
    ├── 语法分析课程实验要求 2.docx
    ├── 语法分析课程实验要求 2.pdf
    └── 语法测试文件.rar

26 directories, 81 files