Polish notation(s) converter using Flex/Bison
Example input file:
* 3 + 4 5 -> in
25 / 5 + 3 + 4 / 2 -> post
will output:
3 * (4 + 5) = 27
25 5 / 3 + 4 2 / + = 10
On the first line, the program takes an expression in prefix (Polish) notation and outputs it in infix (Common, parenthesized) notation. The second line was converted from infix notation to postfix (Reverse polish) notation.