strdump

strdump.go

package main

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

//go:linkname appendEscapedRune strconv.appendEscapedRune
func appendEscapedRune(buf []byte, r rune, quote byte, ASCIIonly, graphicOnly bool) []byte

func main() {
	buff := make([]byte, 0, 8)

	defer fmt.Print("\n")

	r := bufio.NewReader(os.Stdin)
	for {
		c, err := r.ReadByte()
		if err != nil {
			if err == io.EOF {
				return
			}
			fmt.Fprintln(os.Stderr, "reading standard input:", err)
			os.Exit(1)
		}

		// Reset buffer and quote rune
		buff = buff[:0]
		buff = appendEscapedRune(buff, rune(c), 0, false, false)
		_, _ = os.Stdout.Write(buff)
	}
}