Scala 언어 소스:
* Filename: testHexView_03.scala
*
* Purpose: Show the hexadecimal values of the given file.
*
* Compile: scalac -deprecation -d . testHexView_03.scala
* Execute: scala testHexView_03 [filename]
*
* Date: 2013. 8. 18.
*/
import java.io._
object testHexView_03 {
def printUsage() {
println("Usage: scala testHexView_03 [filename]")
}
def toHex(n: Int) : String = {
var s = ""
var x1 = (n & 0xF0) >> 4
var x2 = n & 0xF
if (x1 < 10) {
s = s + "%c".format(('0' + x1) toChar)
}
else {
s = s + "%c".format('A' + (x1 - 10))
}
if (x2 < 10) {
s = "%s%c".format(s, ('0' + x2) toChar)
}
else {
s = s + "%c".format('A' + (x2 - 10))
}
return s
}
def toHex8(n: Int) : String = {
var s = ""
var x1 = (n & 0xF0000000) >> 28
var x2 = (n & 0xF000000) >> 24
var x3 = (n & 0xF00000) >> 20
var x4 = (n & 0xF0000) >> 16
var x5 = (n & 0xF000) >> 12
var x6 = (n & 0xF00) >> 8
var x7 = (n & 0xF0) >> 4
var x8 = n & 0xF
if (x1 < 10) {
s = s + "%c".format(('0' + x1) toChar)
}
else {
s = s + "%c".format('A' + (x1 - 10))
}
if (x2 < 10) {
s = "%s%c".format(s, ('0' + x2) toChar)
}
else {
s = s + "%c".format('A' + (x2 - 10))
}
if (x3 < 10) {
s = "%s%c".format(s, ('0' + x3) toChar)
}
else {
s = s + "%c".format('A' + (x3 - 10))
}
if (x4 < 10) {
s = "%s%c".format(s, ('0' + x4) toChar)
}
else {
s = s + "%c".format('A' + (x4 - 10))
}
s = s + " "
if (x5 < 10) {
s = "%s%c".format(s, ('0' + x5) toChar)
}
else {
s = s + "%c".format('A' + (x5 - 10))
}
if (x6 < 10) {
s = "%s%c".format(s, ('0' + x6) toChar)
}
else {
s = s + "%c".format('A' + (x6 - 10))
}
if (x7 < 10) {
s = "%s%c".format(s, ('0' + x7) toChar)
}
else {
s = s + "%c".format('A' + (x7 - 10))
}
if (x8 < 10) {
s = "%s%c".format(s, ('0' + x8) toChar)
}
else {
s = s + "%c".format('A' + (x8 - 10))
}
return s
}
def main(args: Array[String]) {
if (args.length < 1) {
printUsage()
System.exit(1)
}
var fname : String = args(0)
var infile : File = new File(fname);
if (!infile.exists()) {
System.out.println("The file \"" + fname + "\" does not exist.");
System.exit(1);
}
if (!infile.canRead()) {
System.out.println("The file \"" + fname + "\" is not allowed to be read.");
System.exit(1);
}
if (infile.isDirectory()) {
System.out.println("\"" + fname + "\" is a directory.");
System.exit(1);
}
val is = new FileInputStream(fname)
val cnt = is.available
var lines = new Array[String](19)
var b = new Array[Byte](1)
printf("The size of the file \"%s\" is %d.\n", fname, cnt)
printf("\n")
var n = 0
var dum = ""
while (n < cnt) {
if (n % 16 == 0) {
printf("%s: ", toHex8(n))
}
is.read(b)
if (n % 16 == 8) {
printf("-%s", toHex(b(0) toInt))
}
else {
printf(" %s", toHex(b(0) toInt))
}
if ((b(0) toInt) < (' ' toInt) || (b(0) toInt) > 0x7F) {
dum = dum + "."
}
else {
dum = dum + "%c".format(b(0) toChar)
}
if (n % 16 == 15) {
printf(" |%s|\n", dum)
dum = ""
}
n += 1
}
if (n % 16 > 0) {
for (j <- 1 to 16 - (n % 16)) {
printf(" ")
}
printf(" |%s", dum)
for (j <- 1 to 16 - (n % 16)) {
printf(" ")
}
printf("|\n", dum)
dum = ""
}
printf("\nRead %d bytes.\n", n)
is.close()
}
}
실행 예 1> scala testHexView_03 temp_1.bin
The size of the file "temp_1.bin" is 12.
0000 0000: 48 65 6C 6C 6F 20 74 68-65 72 65 0A |Hello there. |
Read 12 bytes.
실행 예 2> scala testHexView_03 myFile.ser
The size of the file "myFile.ser" is 130.
0000 0000: AC ED 00 05 73 72 00 06-50 65 72 73 6F 6E 07 31 |....sr..Person.1|
0000 0010: 46 DB A5 1D 44 AB 02 00-03 49 00 03 61 67 65 4C |F...D....I..ageL|
0000 0020: 00 09 66 69 72 73 74 4E-61 6D 65 74 00 12 4C 6A |..firstNamet..Lj|
0000 0030: 61 76 61 2F 6C 61 6E 67-2F 53 74 72 69 6E 67 3B |ava/lang/String;|
0000 0040: 4C 00 08 6C 61 73 74 4E-61 6D 65 71 00 7E 00 01 |L..lastNameq.~..|
0000 0050: 78 70 00 00 00 13 74 00-05 4A 61 6D 65 73 74 00 |xp....t..Jamest.|
0000 0060: 04 52 79 61 6E 73 71 00-7E 00 00 00 00 00 1E 74 |.Ryansq.~......t|
0000 0070: 00 07 4F 62 69 2D 77 61-6E 74 00 06 4B 65 6E 6F |..Obi-want..Keno|
0000 0080: 62 69 |bi |
Read 130 bytes.
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