ByteOps.java
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/*
* Decompiled with CFR 0_118.
*/
package com.adobe.internal.pdftoolkit.core.util;
import com.adobe.internal.pdftoolkit.core.exceptions.PDFParseException;
import com.adobe.internal.pdftoolkit.core.types.ASName;
import java.io.UnsupportedEncodingException;
public final class ByteOps {
private static final boolean[] WS = new boolean[]{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, true, true, false, true, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false};
private static final boolean[] REG = new boolean[]{true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, false, true, true, true, true, true, true, true, true, false, false, true, false, false, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, false, true, true, true, true, false, true, true, false, false, true, true, true, true, true, false, true, true, true, true, true, true, true, true, true, true, true, true, false, true, false, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, false, true, false, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, false, true, false, true, true};
private static final boolean[] LIT = new boolean[]{true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, false, false, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, false, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true, true};
private static final boolean[] DEC_DIGIT = new boolean[]{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, true, true, true, true, true, true, true, true, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false};
private static final boolean[] HEX_DIGIT = new boolean[]{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, true, true, true, true, true, true, true, true, true, false, false, false, false, false, false, false, true, true, true, true, true, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, true, true, true, true, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false};
private static final boolean[] OCT_DIGIT = new boolean[]{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, true, true, true, true, true, true, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false};
private static final boolean[] LEADING_OCT_DIGIT = new boolean[]{false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, true, true, true, true, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false, false};
private static final byte[] NUMERICAL_VALUE = new byte[]{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
private static final byte[] hexrep = new byte[]{48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 97, 98, 99, 100, 101, 102};
private ByteOps() {
}
public static final boolean isWhitespace(byte b) {
return WS[b + 128];
}
public static final boolean isWhitespace(char c) {
return c <= ' ' && WS[c + 128];
}
public static boolean isASCII(byte[] bytes) {
for (int strInd = 0; strInd < bytes.length; ++strInd) {
byte curByte = bytes[strInd];
if (curByte >= 32 || ByteOps.isWhitespace(curByte)) continue;
return false;
}
return true;
}
public static final byte[] xorArray(byte[] array, byte with) {
byte[] result = new byte[array.length];
for (int counter = 0; counter < array.length; ++counter) {
result[counter] = (byte)(array[counter] ^ with);
}
return result;
}
private static int startsWithPartial(byte[] src, int srcOff, byte[] suffix, int sufOff) {
int sufInd = -1;
for (int count = srcOff; count < src.length && (sufInd = count - srcOff + sufOff) < suffix.length; ++count) {
if (src[count] == suffix[sufInd]) continue;
sufInd = -1;
break;
}
return sufInd;
}
public static int endsWithPartial(byte[] src, int srcOff, byte[] suffix, int sufOff) {
for (int count = srcOff; count < src.length; ++count) {
if (ByteOps.startsWithPartial(src, count, suffix, sufOff) == -1) continue;
return count;
}
return -1;
}
public static final int equalArrays(byte[] src, int srcOff, byte[] dst, int dstOff, int len) {
if (src.length == 0 && dst.length == 0) {
return -1;
}
if (src.length == 0 || dst.length == 0) {
return 0;
}
for (int count = 0; count < len; ++count) {
if (srcOff + count >= src.length) {
return count;
}
if (dstOff + count >= dst.length) {
return count;
}
if (src[srcOff + count] == dst[dstOff + count]) continue;
return count;
}
return -1;
}
public static final int copy(byte[] src, int srcOff, byte[] dst, int dstOff, int len) {
int retLen;
int srcInd = srcOff;
int destInd = dstOff;
int count = retLen = Math.min(Math.min(src.length - srcOff, dst.length - dstOff), len);
while (count-- > 0) {
dst[destInd++] = src[srcInd++];
}
return retLen;
}
public static final byte[] splitInt2Bytes(int src, int count) {
byte[] result = new byte[count];
for (int index = 0; index < count; ++index) {
result[index] = (byte)(src & 255);
src >>= 8;
}
return result;
}
public static final boolean isRegular(byte b) {
return REG[b + 128];
}
public static final boolean isLiteral(byte b) {
return LIT[b + 128];
}
public static final boolean isDigit(byte b) {
return DEC_DIGIT[b + 128];
}
public static final boolean isHexDigit(byte b) {
return HEX_DIGIT[b + 128];
}
public static final boolean isOctalDigit(byte b) {
return OCT_DIGIT[b + 128];
}
public static final boolean isLeadingOctalDigit(byte b) {
return LEADING_OCT_DIGIT[b + 128];
}
public static final byte getNumericalValue(byte b) {
return NUMERICAL_VALUE[b + 128];
}
public static int readField(byte[] s, int pos) throws PDFParseException {
if (pos + 1 >= s.length || !ByteOps.isDigit(s[pos]) || !ByteOps.isDigit(s[pos + 1])) {
throw new PDFParseException(Integer.toString(pos));
}
return (s[pos] - 48) * 10 + (s[pos + 1] - 48);
}
public static byte[] getHex(byte[] src) {
int j = 0;
byte[] rslt = new byte[src.length * 2];
for (int i = 0; i < src.length; ++i) {
byte b = src[i];
rslt[j++] = hexrep[b >> 4 & 15];
rslt[j++] = hexrep[b & 15];
}
return rslt;
}
public static byte[] getHex(byte[] src, int size) {
int j = 0;
byte[] rslt = new byte[size];
for (int i = 0; i < src.length; ++i) {
byte b = src[i];
rslt[j++] = hexrep[b >> 4 & 15];
rslt[j++] = hexrep[b & 15];
}
return rslt;
}
public static String getHexString(byte[] in) {
byte[] hex = ByteOps.getHex(in);
try {
return new String(hex, "ASCII");
}
catch (UnsupportedEncodingException e) {
throw new RuntimeException("ASCII encoding not supported.", e);
}
}
public static ASName getHexName(byte[] in) throws UnsupportedEncodingException {
return ByteOps.getHexName(in, false);
}
public static ASName getHexName(byte[] in, boolean uppercase) {
String hex = ByteOps.getHexString(in);
return ASName.create(uppercase ? hex.toUpperCase() : hex);
}
public static String getHexString(byte[] in, int size) throws UnsupportedEncodingException {
byte[] hex = ByteOps.getHex(in, size);
return new String(hex, "ASCII");
}
public static String getHexString2(byte[] in) {
byte ch = 0;
if (in == null || in.length <= 0) {
return null;
}
String[] pseudo = new String[]{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"};
StringBuilder out = new StringBuilder(in.length * 2);
for (int i = 0; i < in.length; ++i) {
ch = (byte)(in[i] & 240);
ch = (byte)(ch >>> 4);
ch = (byte)(ch & 15);
out.append(pseudo[ch]);
ch = (byte)(in[i] & 15);
out.append(pseudo[ch]);
}
return new String(out);
}
public static byte getHex(byte b) throws PDFParseException {
int rslt = 0;
if (b >= 48 && b <= 57) {
rslt = b - 48;
} else if (b >= 65 && b <= 70) {
rslt = b - 65 + 10;
} else if (b >= 97 && b <= 102) {
rslt = b - 97 + 10;
} else {
throw new PDFParseException("Expected Hex Digit - instead got " + Byte.toString(b));
}
return (byte)rslt;
}
public static String getUnicode(byte[] unicodeBytes) {
String encoding = "UTF-8";
if (unicodeBytes == null || unicodeBytes.length <= 2) {
return null;
}
if (unicodeBytes[0] == -2 && unicodeBytes[1] == -1 || unicodeBytes[0] == -1 && unicodeBytes[1] == -2) {
encoding = "UTF-16";
}
try {
return new String(unicodeBytes, encoding);
}
catch (UnsupportedEncodingException e) {
throw new RuntimeException(encoding + " encoding not supported.", e);
}
catch (Exception exp) {
return null;
}
}
public static final byte[] toByte(short word0) {
byte[] abyte0 = new byte[2];
for (int byte0 = 0; byte0 <= 1; byte0 = (int)((byte)(byte0 + 1))) {
abyte0[byte0] = (byte)(word0 >>> (1 - byte0) * 8);
}
return abyte0;
}
}