• Goal: Implementing a C_Minus_Minus compiler
• Environment: Ubuntu 12.04.4 LTS
• Language: C++
• Main program: compiler.cpp
• Input file: main.c grammar.txt
• Output file: token.txt set.txt LLtable.txt tree.txt symbol.txt quadruples.txt code.tm

"./compile.sh" or "make" "./compiler input/main.c input/grammar.txt"

1. Kerwords: int char return if else while break
2. Operators: = ! + - * / == != < > <= >= && ||
3. Special Symbols: [ ] ( ) { } ; ,
4. Identifier: [a-zA-Z_][a-zA-Z0-9_]*
5. Number: [0-9]+
6. Char: ‘[.|\n|\t| ]’ Ex. ‘a’、’\n’、’ ’
7. Comment (no need to print): //

1. Lexical Analysis
2. Syntax Analysis
3. Semantic Analysis
4. IR Generation
5. Code Generation

• lib: all custom class file
• input: include main.c & grammar.txt
• ouput: all output file could found in this directoy
• compile.sh: shell program for quick compile and run program
• Tiny_Machine.c: machine source code for run result code.tm

compiler support char to int implicit conversion (no need to type checking)