func parse(s []string) {
s = append(s, EOF)
stk := new(stack.Stack)
stk.Push(EOF)
stk.Push(startSymbol)
for {
time.Sleep(time.Second)
top := stk.Top()
fmt.Println(stk)
if top == "epsilon" {
stk.Pop()
}
if terminals.has(top) {
if top == EOF {
break
}
if top == s[0] {
stk.Pop()
s = s[1:]
} else {
fmt.Println("invalid string")
break
}
}
if nonTerminals.has(top) {
stk.Pop()
for i := len(table[s[0]][top]) - 1; i >= 0; i-- {
stk.Push(table[s[0]][top][i])
}
}
}
}
func main() {
var haystack stack.Stack
haystack.Push("Hay")
haystack.Push(-15)
haystack.Push([]string{"Pin", "Clip", "Needle"})
haystack.Push(81.52)
fmt.Printf("The length of the stack is %d\n", haystack.Len())
item, err := haystack.Top()
if err != nil {
log.Fatalln(err)
}
fmt.Printf("Top element of the stack is %v\n", item)
fmt.Println("Items in the stack are listed below:")
for {
item, err = haystack.Pop()
if err != nil {
break
}
fmt.Println(item)
}
}
