func printLine(addr int, buf []byte, sz int, wr io.Writer, end int) {
_, err := io.WriteString(wr, iching.SpacePad(iching.Itoiching(uint64(addr)), sz))
if err != nil {
fmt.Fprintf(os.Stderr, "Error on output: %v\n", err)
os.Exit(1)
}
io.WriteString(wr, " ")
for i := 0; i < len(buf); i += 2 {
n := uint64(buf[i])<<8 + uint64(buf[i+1])
if i == 8 {
io.WriteString(wr, " ")
}
if i >= end {
fmt.Fprintf(wr, " ")
} else {
ich := iching.QianPad(iching.Itoiching(n), 3)
fmt.Fprintf(wr, " %s", ich)
}
}
io.WriteString(wr, " |")
for i := 0; i < len(buf); i++ {
if i >= end {
fmt.Fprintf(wr, " ")
} else {
if buf[i] >= 0x20 && buf[i] <= 0x7e {
fmt.Fprintf(wr, "%c", buf[i])
} else {
io.WriteString(wr, ".")
}
}
}
io.WriteString(wr, "|\n")
}
func main() {
if len(os.Args) != 2 {
fmt.Fprintf(os.Stderr, "Wrong number of arguments.\n")
usage()
}
s := os.Args[1]
var n uint64
var err error
ch := ([]rune(s))[0]
if ch >= 0x4dc0 && ch <= 0x4dff {
n, err = iching.Ichingtoi(s)
} else {
n, err = strconv.ParseUint(s, 0, 64)
}
if err != nil {
fmt.Fprintf(os.Stderr, "Wrong argument: %v\n", err)
usage()
}
fmt.Printf("decimal = %d\n", n)
oct := fmt.Sprintf("%o", n)
fmt.Printf("octal =")
start := 0
if len(oct)%2 != 0 {
fmt.Printf(" 0%c", oct[0])
start = 1
}
for i := start; i < len(oct); i += 2 {
fmt.Printf(" %c%c", oct[i], oct[i+1])
}
fmt.Printf("\n")
ich := iching.Itoiching(n)
fmt.Printf("iching =")
for _, ch := range []rune(ich) {
fmt.Printf(" %c", ch)
}
fmt.Printf("\n")
}
func main() {
if len(os.Args) != 2 {
fmt.Fprintf(os.Stderr, "Wrong number of arguments\n")
usage()
}
fh, err := os.Open(os.Args[1])
if err != nil {
fmt.Fprintf(os.Stderr, "Could not open %s: %v\n", os.Args[1], err)
usage()
}
fi, err := fh.Stat()
if err != nil {
fmt.Fprintf(os.Stderr, "Could not stat %s: %v\n", os.Args[1], err)
usage()
}
sz := len([]rune(iching.Itoiching(uint64(fi.Size()))))
rd := bufio.NewReader(fh)
wr := bufio.NewWriter(os.Stdout)
defer wr.Flush()
buf := make([]byte, 16)
i := 0
for {
n, err := io.ReadFull(rd, buf)
for i := n; i < len(buf); i++ {
buf[i] = 0x00
}
if n > 0 {
printLine(i, buf, sz, wr, n)
i += n
}
if err != nil {
if err != io.EOF && err != io.ErrUnexpectedEOF {
fmt.Fprintf(os.Stderr, "Error reading input: %v\n", err)
os.Exit(1)
}
break
}
}
}
