rm -f lemon_test lemon_parser.c lemon_parser.h flex_scanner.c flex_scanner.h echo "Lemon" lemon lemon_parser.y echo "Flex" # flex lexer.l flex --outfile=flex_scanner.c --header-file=flex_scanner.h flex_scanner.l echo "Compile" g++ main.cpp lemon_parser.c flex_scanner.c -o lemon_test -std=c++11 -pthread ./lemon_test