RubbiSH

implementation design

• cwd.c
  • handle current directory (cd)
• execute.c
  • process management
• lexer.c
  • Lexical Analyzer
• parser.y
  • Yacc(Bison)
• rubbish.c
  • read inputs by readline()
  • manage input historys
• rubgc.c
  • memory management
• semantic.c
  • functions that generate abstract syntax
• shellcmd.c
  • internal shell commands