slr_rule.txt

S -> CODE
CODE -> CDECL CODE 
CODE -> FDECL CODE 
CODE ->  VDECL CODE 
CODE -> ''
VDECL -> vtype id semi 
VDECL -> vtype ASSIGN semi
ASSIGN -> id assign RHS
RHS ->   EXPR 
RHS -> literal 
RHS -> character 
RHS -> boolstr
EXPR ->  T addsub EXPR
EXPR -> T
T ->   F multdiv T
T -> F
F ->   lparen EXPR rparen 
F -> id 
F -> num
FDECL ->  vtype id lparen ARG rparen lbrace BLOCK RETURN rbrace
ARG ->   vtype id MOREARGS
ARG -> ''
MOREARGS ->   comma vtype id MOREARGS 
MOREARGS -> ''
BLOCK ->   STMT BLOCK
BLOCK -> ''
STMT ->   VDECL 
STMT -> ASSIGN semi
STMT ->   if lparen COND rparen lbrace BLOCK rbrace ELSE
STMT ->   while lparen COND rparen lbrace BLOCK rbrace
COND -> C comp COND
COND -> C
C -> boolstr
ELSE ->   else lbrace BLOCK rbrace 
ELSE -> ''
RETURN ->   return RHS semi
CDECL ->   class id lbrace ODECL rbrace
ODECL ->   VDECL ODECL
ODECL -> FDECL ODECL 
ODECL -> ''