Ejemplo n.º 1
0
func main() {
	if len(os.Args) < 3 {
		fmt.Printf("usage: ./main grammar_file program_file\n")
		os.Exit(1)
	}

	gmr, err := ioutil.ReadFile(os.Args[1])
	if err != nil {
		fmt.Printf("'%s' is not a valid file name\n", os.Args[1])
	}

	pgm, err := ioutil.ReadFile(os.Args[2])
	if err != nil {
		fmt.Printf("'%s' is not a valid file name\n", os.Args[1])
	}

	// First file should be the grammar, second is the file being parsed
	gmrReader := bytes.NewReader(gmr)
	pgmReader := bytes.NewReader(pgm)

	// Get the grammar from the analyzer
	a := compiler.Analyzer{Reader: *gmrReader}
	grammar := a.ReadGrammar()

	// Create a generator, necessary for table
	g := compiler.Generator{Grammar: grammar}

	// Setup the parser
	p := compiler.Parser{Grammar: a.ReadGrammar(), Reader: *pgmReader}
	p.Scanner = compiler.Scanner{Reader: *pgmReader}
	p.Table = g.GetTable()

	p.Driver()
}
Ejemplo n.º 2
0
func main() {
	if len(os.Args) < 2 {
		fmt.Printf("You must pass in a micro file on the command line\n")
		os.Exit(1)
	}

	src, err := ioutil.ReadFile(os.Args[1])
	if err != nil {
		fmt.Printf("'%s' is not a valid file name\n", os.Args[1])
	}

	reader := bytes.NewReader(src)

	a := compiler.Analyzer{Reader: *reader}
	g := compiler.Generator{Grammar: a.ReadGrammar()}
	g.Table()
}