littlecompiler

A really simple compiler for a really simple language

Symbols

• identifiers: for the names of the variables
  • a string beginning with a letter, it may contein letters, digits and the caracter “_”.
• intergers:
  • a string with only digits.
• let: word reserved to assignment
  • the string “let”.
• print: word reserved to print
  • the string “print”.
• add: word reserved to addition
  • string “add”.
• assignment:
  • the caracter “=”.
• addition:
  • o caracter “+”.

Exemple:

Input

  let a = 2
  add b + 4
  print a
  print b

Output

  2
  4

Dependencies

• Flex
• Make
• GCC

Running

make
./compiler < inputfile