package main

import (
    "fmt"

    "github.com/ghettovoice/abnf"
)

var abc = abnf.Concat(
    `"a" "b" *"cd"`,
    abnf.Literal(`"a"`, []byte("a")),
    abnf.Literal(`"b"`, []byte("b")),
    abnf.Repeat0Inf(`*"cd"`, abnf.Literal(`"cd"`, []byte("cd"))),
)

func main() {
    var ns abnf.Nodes

    fmt.Println(abc([]byte("ab"), ns[:0]))
    fmt.Println(abc([]byte("abcd"), ns[:0]))
    fmt.Println(abc([]byte("abcdcd"), ns[:0]))
}