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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <qtextcodec.h>
#include <qbytearray.h>
#include <qstring.h>
#include <qdebug.h>
#include <qfile.h>
#include <qcoreapplication.h>
#include <qset.h>
struct Map { Map(uint u, uint b) : uc(u), b5(b) {} uint uc; uint b5; };
int main(int argc, char **argv)
{
QCoreApplication app(argc, argv);
QTextCodec *big5 = QTextCodec::codecForName("Big5-hkscs");
#if 0
QFile f("/home/lars/dev/qt-4.0/util/unicode/data/big5-eten.txt");
f.open(QFile::ReadOnly);
while (!f.atEnd()) {
QByteArray line = f.readLine();
if (line.startsWith("#"))
continue;
line.replace("0x", "");
line.replace("U+", "");
line.replace("\t", " ");
line = line.simplified();
QList<QByteArray> split = line.split(' ');
bool ok;
int b5 = split.at(0).toInt(&ok, 16);
Q_ASSERT(ok);
int uc = split.at(1).toInt(&ok, 16);
Q_ASSERT(ok);
if (b5 < 0x100)
continue;
#else
QFile f(":/BIG5");
f.open(QFile::ReadOnly);
while (!f.atEnd()) {
QByteArray line = f.readLine();
if (line.startsWith("CHARMAP"))
break;
}
QSet<uint> b5_ok;
QSet<uint> uc_ok;
QList<Map> b5_to_uc_map;
QList<Map> uc_to_b5_map;
while (!f.atEnd()) {
QByteArray line = f.readLine();
if (line.startsWith("%"))
continue;
if (line.startsWith("END CHARMAP"))
break;
line.replace("/x", "");
line.replace("<U", "");
line.replace(">", "");
line.replace("\t", " ");
line = line.simplified();
QList<QByteArray> split = line.split(' ');
bool ok;
int b5 = split.at(1).toInt(&ok, 16);
Q_ASSERT(ok);
int uc = split.at(0).toInt(&ok, 16);
Q_ASSERT(ok);
if (b5 < 0x100 || uc > 0xffff)
continue;
#endif
// qDebug() << hex << "testing: '" << b5 << "' - '" << uc << "'";
QByteArray ba;
ba += (char)(uchar)(b5 >> 8);
ba += (char)(uchar)(b5 & 0xff);
QString s = big5->toUnicode(ba);
Q_ASSERT(s.length() == 1);
QString s2;
s2 = QChar(uc);
ba = big5->fromUnicode(s2);
Q_ASSERT(ba.length() <= 2);
int round;
if (ba.length() == 1)
round = (int)(uchar)ba[0];
else
round = ((int)(uchar)ba[0] << 8) + (int)(uchar)ba[1];
if (b5 != round)
uc_to_b5_map += Map(uc, b5);
else
b5_ok.insert(b5);
if (s[0].unicode() != uc)
b5_to_uc_map += Map(uc, b5);
else
uc_ok.insert(uc);
};
QList<QByteArray> list;
for (Map m : std::as_const(b5_to_uc_map)) {
if (!uc_ok.contains(m.b5))
list += QByteArray(" { 0x" + QByteArray::number(m.b5, 16) + ", 0x" + QByteArray::number(m.uc, 16) + " }\n");;
}
std::sort(list.begin(), list.end());
qDebug() << "struct B5Map b5_to_uc_map = {\n" << list.join() + "\n};";
list = QList<QByteArray>();
for (Map m : std::as_const(uc_to_b5_map))
if (!b5_ok.contains(m.uc))
list += QByteArray(" { 0x" + QByteArray::number(m.uc, 16) + ", 0x" + QByteArray::number(m.b5, 16) + " }\n");;
std::sort(list.begin(), list.end());;
qDebug() << "struct B5Map uc_to_b5_map = {\n" << list.join() + "\n};";
}
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