qt_demoe/3rd_smtpclient/quotedprintable.cpp

44 lines
1.1 KiB
C++

#include "quotedprintable.h"
QString &QuotedPrintable::encode(const QByteArray &input)
{
QString *output = new QString();
char byte;
const char hex[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
for (int i = 0; i < input.length() ; ++i) {
byte = input.at(i);
if ((byte == 0x20) || ((byte >= 33) && (byte <= 126) && (byte != 61))) {
output->append(byte);
} else {
output->append('=');
output->append(hex[((byte >> 4) & 0x0F)]);
output->append(hex[(byte & 0x0F)]);
}
}
return *output;
}
QByteArray &QuotedPrintable::decode(const QString &input)
{
// 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F
const int hexVal[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, 0, 10, 11, 12, 13, 14, 15};
QByteArray *output = new QByteArray();
for (int i = 0; i < input.length(); ++i) {
if (input.at(i).toLatin1() == '=') {
int index = ++i;
output->append((hexVal[input.at(index).toLatin1() - '0'] << 4) + hexVal[input.at(++i).toLatin1() - '0']);
} else {
output->append(input.at(i).toLatin1());
}
}
return *output;
}