func args(filename string) {
b, err := ioutil.ReadFile(filename)
if err != nil {
panic(err)
}
p := parser.ParseFromString(filename, string(b)+"\n")
a := generator.GenerateAST(p)
fset := token.NewFileSet()
var buf bytes.Buffer
printer.Fprint(&buf, fset, a)
fmt.Printf("%s\n", buf.String())
}
func main() {
if len(os.Args) > 1 {
args(os.Args[1])
return
}
r := bufio.NewReader(os.Stdin)
for {
fmt.Print(">> ")
line, _, _ := r.ReadLine()
p := parser.ParseFromString("<REPL>", string(line)+"\n")
fmt.Println(p)
// a := generator.GenerateAST(p)
a := generator.EvalExprs(p)
fset := token.NewFileSet()
ast.Print(fset, a)
var buf bytes.Buffer
printer.Fprint(&buf, fset, a)
fmt.Printf("%s\n", buf.String())
}
}
