A simple compiler by Python
A simple and scalable compiler by Python.
A simple lexical parser written in Python that supports grammar parsing for C++-like languages, on which you can extend your grammar rules.
一个由Python编写的简单词法分析器，支持类C++语言的文法解析，你可以在此基础上扩展你的文法规则。
The functions currently implemented and the knowledge used are as follows:
目前实现的功能及所用到的知识如下：
- 词法分析器（Lexical analyzer）
- 语法分析器（Syntax parser)
- 语义分析器（Semantic parser）
The above-mentioned parsers use the knowledge of CFG, LR(1) and TAC, respectively.
上述的解析器分别用到的知识有CFG、LR(1)和TAC等。
In the following, we will use the tool to parse the following code:
下面，我们将利用该工具解析如下代码：
func void main(){
// 注释
/*编译器
*/
int _aA,dd = 12;
int b= 14;
double C2_c = a1-- + b * 2.44 + 1.2j - 1.2E+12 + 12.34e-2;
int i;
bool b=a||d&&c;
l=1;
i-=1;
if(a<=b || b>c && a==c){
print("马老师发生甚么事了？");
print('a');
print("");
if(i==1){
print("1");
}
else{
print("2");
}
}
else if(a==2){
print("hello");
}
else{
if(1==2){
print(1);
}
else if(2==2){
print("积泥钛镁");
}
else{
print(2);
}
}
int i=0,j=0;
while(i<10){
print(1);
while(j<5){
print(2);
j++;
}
i++;
}
for(i=0;i<20;i++){
print("小黑子");
for(int j=0;j<12;j+=2){
print("ikun");
}
}
print(c);
bool lbw = false;
}可以使用如下的指令实现：
lite-compiler -l code.nj -o 1 
lite-compiler -p ./dist/lex_tokens.jsonl -o 1
lite-compiler -s ./dist/lex_tokens.jsonl -o 1
