DarkGeekMS / simple-c-compiler

A simple C/C++ compiler implemented in LEX (Flex) and YACC (Bison)

Simple C/C++ Compiler

A simple C/C++ compiler implemented in LEX (Flex) and YACC (Bison).

Prerequisites

• gcc
• g++
• flex
• bison
• Python (PyQT5)

Usage (Ubuntu)

• Add the required code to .c or .cpp file.

• Compile and run the lexer and parser on the code :

  bison --yacc parser.y -d # process parser using bison
  flex lexer.l # process lexer using flex
  g++ -c symbolTable.cpp # compile symbol table file and object file
  gcc -c lex.yy.c y.tab.c compiling.c # compile c files and get object files
  g++ -o cpp.out symbolTable.o compiling.o lex.yy.o y.tab.o # link output object files
  ./cpp.out /path/to/input/file /path/to/output/directory # run output file providing required code file

• Alternatively, use run.bash to compile and run the compiler :

  ./run.bash /path/to/input/file /path/to/output/directory

• Use GUI :

  • First, compile the code and get cpp.out.
  • Second, copy cpp.out to gui folder.
  • Third, run GUI :

    cd gui/
    python gui.py

  • Finally, choose the input file and the output directory, then press compile button.