/* See LICENSE file for copyright and license details. */

package main

import (
	"fmt"
	"io"
	"os"

	"github.com/Shugyousha/unxml"
)

func main() {
	var unxmlreader io.Reader
	var n int

	f, err := os.Open(os.Args[1])
	if err != nil {
		fmt.Fprintf(os.Stderr, "Error when opening file: %s\n", err)
	}

	unxmlreader = unxml.NewReaderKeepTags(f, []string{"a"})
	//unxmlreader = unxml.NewReaderKeepTags(f, make([]string, 0))
	lineno := 0

	bbuffer := make([]byte, 100)
	for {

		n, err = unxmlreader.Read(bbuffer)
		if err != nil {
			if err == io.EOF || n == 0 {
				break
			}
			fmt.Printf("Error while reading file at line nr. %d: %v\n", lineno, err)
			break
		}

		lineno++
		//fmt.Printf("Buffer nbr. %d: %s\n", lineno, bbuffer[:n])
		fmt.Printf("%s", bbuffer[:n])
	}
	fmt.Printf("%s", bbuffer[:n])

	f.Close()
}