package main

import (
	"bufio"
	"errors"
	"flag"
	"io"
	"os"
)

var (
	columnDelimiter  string
	pageDelimiter    string
	minimumInstances int
)

func main() {
	flag.StringVar(&pageDelimiter, "p", "\f", "page delimiter character")
	flag.StringVar(&columnDelimiter, "d", " ", "column delimiter character")
	flag.IntVar(&minimumInstances, "m", 2, "minimum non-leading instances of delimiter to break a column")
	flag.Parse()

	r := bufio.NewReader(os.Stdin)
	for {
		b, err := readPage(r)
		if err != nil && err != io.EOF {
			panic(err)
		}
		if err := putPage(b); err != nil {
			panic(err)
		}
		if err == io.EOF {
			break
		}
	}
}

func readPage(r *bufio.Reader) ([]byte, error) {
	return _readPage([]byte(pageDelimiter)[0], r)
}

func _readPage(d byte, r *bufio.Reader) ([]byte, error) {
	b, err := r.ReadBytes(d)
	if len(b) > 0 && byte(b[len(b)-1]) == d {
		b = b[:len(b)-1]
	}
	return b, err
}

func putPage(b []byte) error {
	return errors.New("not impl")
}