Syntax errors 4 semantic errors 0 listingh this file

Syntax Errors 4

Semantic Errors 0
------------------------------------------------------------
listing.h
// This file contains the function prototypes for the functions
that produce the // compilation listing
enum ErrorCategories {LEXICAL, SYNTAX,
GENERAL_SEMANTIC, DUPLICATE_IDENTIFIER,
UNDECLARED};
void firstLine();
void nextLine();
int lastLine();
void appendError(ErrorCategories errorCategory, string
message);
------------------------------------------------------------------------
----------
makefile

compile: scanner.o parser.o listing.o
g++ -o compile scanner.o parser.o listing.o
scanner.o: scanner.c listing.h tokens.h
g++ -c scanner.c
scanner.c: scanner.l
flex scanner.l
mv lex.yy.c scanner.c
parser.o: parser.c listing.h
g++ -c parser.c
parser.c tokens.h: parser.y
bison -d -v parser.y
mv parser.tab.c parser.c
mv parser.tab.h tokens.h

listing.o: listing.cc listing.h
g++ -c listing.cc
----------------------------------------------------------
parser.y
%{
#include
using namespace std;
#include "listing.h"
int yylex();
void yyerror(const char* message);
%}
%error-verbose
%token IDENTIFIER
%token INT_LITERAL

%token ADDOP MULOP RELOP ANDOP
%token BEGIN_ BOOLEAN END ENDREDUCE FUNCTION
INTEGER IS REDUCE RETURNS
%%
function:
function_header optional_variable body ;
function_header:
FUNCTION IDENTIFIER RETURNS type ';' ;
optional_variable:
variable |
;
variable:
IDENTIFIER ':' type IS statement_ ;
type:

INTEGER |
BOOLEAN ;
body:
BEGIN_ statement_ END ';' ;
statement_:
statement ';' |
error ';' ;
statement:
expression |
REDUCE operator reductions ENDREDUCE ;
operator:
ADDOP |
MULOP ;

factor MULOP primary |
primary ;
primary:
'(' expression ')' |
INT_LITERAL |
IDENTIFIER ;
%%
void yyerror(const char* message)
{
appendError(SYNTAX, message);
}
int main(int argc, char *argv[])
{
firstLine();