BufFileReader.go

package main

import (
  	"fmt"
	"bufio"
	"os"
	"log"
	"io"
)

func main() {	
	var name string
	fmt.Println(len(os.Args))
	if len(os.Args) > 1 {
		// fmt.Println(ioutil.ReadFile("/Users/nm3mon/Projects/algs4j/src/test/resources/tale.txt"))		
		name = os.Args[1]
	} else {
		name = "/Users/nm3mon/Projects/algs4j/src/test/resources/leipzig1M.txt"
	}
	readFile(name)
}

func readFile(name string) {
	count := 0
	file, err := os.Open(name)
	if err != nil {
		log.Fatal("can't read file")
	}
	defer file.Close()
	bufReader:= bufio.NewReader(file)
	const newline = '\n'
	for {
		line, err := bufReader.ReadString(newline)				
		if err != nil {
			if err == io.EOF {
				break
			}
			log.Fatal("caught error reading new line")
		}
		count++
		fmt.Print(line)
	}
	fmt.Printf("\n\ntotal lines read: %d\n", count)
}