%{
#include <stdio.h>
#include <iostream>
using namespace std;

extern "C" {
    int yylex(void);
}

extern FILE * yyin;

void yyerror(const char * str)
{
    fprintf(stderr, "error: %s\n", str);
}

int yywrap()
{
    return 1;
}

%}

%token PLUS;
%token MINUS;
%token STAR;
%token DIVIDE;
%token MOD;

%token SEMICOLON;
%token COLON;
%token QUESTION;
%token DOLLAR;
%token DOT;
%token DQUOTE;
%token SQUOTE;
%token COMMA;

%token LCURLY;
%token RCURLY;
%token LBRACKET;
%token RBRACKET;
%token LPAREN;
%token RPAREN;
%token LESS;
%token GREATER;

%token DEC_NUMBER;
%token REAL_NUMBER;

%token CAMERA;
%token COLOR;
%token POSITION;
%token SCENE;

%%

scene: /* empty */
       | scene_spec { printf("Saw a number\n"); }
       ;

number: DEC_NUMBER
      | REAL_NUMBER
      ;

%%

int parse(const char * fileName)
{
    yyin = fopen(fileName, "r");
    if (yyin == NULL)
    {
        cerr << "Failed to open file '" << fileName << "'" << endl;
        return -1;
    }
    yyparse();
}