Coursework of compiling principles in BJUT.

Tested on Ubuntu 18.04.4 and macOS 10.15.4 with gcc (or clang), flex and bison installed.

Yacc_LR_demo is only avilible on Windows now.

Under /task1:

lex t1_demo_lzh.lex  
gcc -o task1 lex.yy.c -lm  
./task1  

Or:

./generate_lex.sh  
./task1  
or
./task1 in.txt
or
./task1 in.txt chart.txt

Under /task2t:

make clean
make all 
./task2
./task2 in.txt  

Check out.txt to obtain result after execution if an argument has been passed.

Under /task3:

make clean
make all
./task3
./task3 in.txt

Check out.txt to obtain result after execution if an argument has been passed.

Under /yacc_LR_demo:

Only avilible on Windows:
Click "yacc_LR_demo.exe",then you can get everything you want.
If you want to use this yacc_demo to analyze another sentence, please check "User_Guide.txt".