Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.io.IOException;

public class Main {
    public static byte[] decodeQ(byte[] bytes) throws IOException {
        int len = bytes.length;
        int length = 0;
        for (int i = 0; i < len; i++) {
            byte b = bytes[i];
            if (b == '=') {
                i++;
                if (i == len)
                    break;
                b = bytes[i];
                if (b == '\r' || b == '\n') {
                    b = bytes[++i];
                    if (b != '\n') {
                        i--;
                    }
                    continue;
                }
                int result = -Character.digit(b, 16);
                result *= 16;
                result -= Character.digit(bytes[++i], 16);
                bytes[length++] = (byte) -result;
            } else {
                bytes[length++] = b;
            }
        }
        byte[] result = new byte[length];
        System.arraycopy(bytes, 0, result, 0, length);
        return result;
    }

    public static String decodeQ(String str, String charsetName) throws IOException {
        byte[] bs = str.getBytes();
        int len = bs.length;
        int length = 0;
        for (int i = 0; i < len; i++) {
            byte b = bs[i];
            if (b == '=') {
                i++;
                if (i == len)
                    break;
                b = bs[i];
                if (b == '\r' || b == '\n') {
                    b = bs[++i];
                    if (b != '\n') {
                        i--;
                    }
                    continue;
                }
                int result = -Character.digit(b, 16);
                result *= 16;
                result -= Character.digit(bs[++i], 16);
                bs[length++] = (byte) -result;
            } else {
                bs[length++] = b;
            }
        }
        return new String(bs, 0, length, charsetName);
    }
}