Read lines from stdin

stdin.go

package main

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

func main() {
	for line := range scan(os.Stdin) {
		fmt.Printf("%v\n", line)
	}
}

func scan(input io.Reader) chan string {
	lines := make(chan string)

	go func() {
		scanner := bufio.NewScanner(os.Stdin)
		for ok := scanner.Scan(); ok; ok = scanner.Scan() {
			lines <- scanner.Text()
		}
		close(lines)
	}()

	return lines
}