Uses Flex and Bison to translate modified tiny basic grammar into C code, which is then passed onto a C compiler to be compiled.
program ::= block
block ::= block line | line
line ::= INTEGER statement CR | statement CR
statement ::= PRINT expr-list | IF expression relop expression THEN statement | GOTO expression | INPUT var-list | LET var = expression | END
expr-list ::= expr-list , expression | expression
var-list ::= var-list , var | var
expression ::= expression + term | expression - term | term
term ::= term * factor | term / factor | factor
factor ::= var | number | (expression)
number ::= INTEGER | DECIMAL
var ::= A | B | C .... | Y | Z
relop ::= < | <= | > | >= | == | !=