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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++ // Qt-Security score:critical reason:data-parser
++
++ // Most of the code here was originally written by Serika Kurusugawa
++ // a.k.a. Junji Takagi, and is included in Qt with the author's permission,
++ // and the grateful thanks of the Qt team.
++
++ /*! \class QEucJpCodec
++ \inmodule QtCore5Compat
++ \reentrant
++ \internal
++ */
++
++ /*
++ * Copyright (C) 1999 Serika Kurusugawa, All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ * notice, this list of conditions and the following disclaimer.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in the
++ * documentation and/or other materials provided with the distribution.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
++ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
++ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
++ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
++ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
++ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
++ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
++ * SUCH DAMAGE.
++ */
++
++ #include "qeucjpcodec_p.h"
++
++ QT_BEGIN_NAMESPACE
++
++ static const uchar Ss2 = 0x8e; // Single Shift 2
++ static const uchar Ss3 = 0x8f; // Single Shift 3
++
++ /*!
++ Constructs a QEucJpCodec.
++ */
++ QEucJpCodec::QEucJpCodec() : conv(QJpUnicodeConv::newConverter(QJpUnicodeConv::Default))
++ {
++ }
++
++ /*!
++ Destroys the codec.
++ */
++ QEucJpCodec::~QEucJpCodec()
++ {
++ delete (const QJpUnicodeConv*)conv;
++ conv = 0;
++ }
++
++ QByteArray QEucJpCodec::convertFromUnicode(const QChar *uc, int len, ConverterState *state) const
++ {
++ char replacement = '?';
++ if (state) {
++ if (state->flags & ConvertInvalidToNull)
++ replacement = 0;
++ }
++ int invalid = 0;
++
++ int rlen = 3*len + 1;
++ QByteArray rstr;
++ rstr.resize(rlen);
++ uchar* cursor = (uchar*)rstr.data();
++ for (int i = 0; i < len; i++) {
++ QChar ch = uc[i];
++ uint j;
++ if (ch.unicode() < 0x80) {
++ // ASCII
++ *cursor++ = ch.cell();
++ } else if ((j = conv->unicodeToJisx0201(ch.row(), ch.cell())) != 0) {
++ if (j < 0x80) {
++ // JIS X 0201 Latin ?
++ *cursor++ = j;
++ } else {
++ // JIS X 0201 Kana
++ *cursor++ = Ss2;
++ *cursor++ = j;
++ }
++ } else if ((j = conv->unicodeToJisx0208(ch.row(), ch.cell())) != 0) {
++ // JIS X 0208
++ *cursor++ = (j >> 8) | 0x80;
++ *cursor++ = (j & 0xff) | 0x80;
++ } else if ((j = conv->unicodeToJisx0212(ch.row(), ch.cell())) != 0) {
++ // JIS X 0212
++ *cursor++ = Ss3;
++ *cursor++ = (j >> 8) | 0x80;
++ *cursor++ = (j & 0xff) | 0x80;
++ } else {
++ // Error
++ *cursor++ = replacement;
++ ++invalid;
++ }
++ }
++ rstr.resize(cursor - (const uchar*)rstr.constData());
++
++ if (state) {
++ state->invalidChars += invalid;
++ }
++ return rstr;
++ }
++
++
++ QString QEucJpCodec::convertToUnicode(const char* chars, int len, ConverterState *state) const
++ {
++ uchar buf[2] = {0, 0};
++ int nbuf = 0;
++ QChar replacement = QChar::ReplacementCharacter;
++ if (state) {
++ if (state->flags & ConvertInvalidToNull)
++ replacement = QChar::Null;
++ nbuf = state->remainingChars;
++ buf[0] = state->state_data[0];
++ buf[1] = state->state_data[1];
++ }
++ int invalid = 0;
++
++ QString result;
++ for (int i=0; i<len; i++) {
++ uchar ch = chars[i];
++ switch (nbuf) {
++ case 0:
++ if (ch < 0x80) {
++ // ASCII
++ result += QLatin1Char(ch);
++ } else if (ch == Ss2 || ch == Ss3) {
++ // JIS X 0201 Kana or JIS X 0212
++ buf[0] = ch;
++ nbuf = 1;
++ } else if (IsEucChar(ch)) {
++ // JIS X 0208
++ buf[0] = ch;
++ nbuf = 1;
++ } else {
++ // Invalid
++ result += replacement;
++ ++invalid;
++ }
++ break;
++ case 1:
++ if (buf[0] == Ss2) {
++ // JIS X 0201 Kana
++ if (IsKana(ch)) {
++ uint u = conv->jisx0201ToUnicode(ch);
++ result += QValidChar(u);
++ } else {
++ result += replacement;
++ ++invalid;
++ }
++ nbuf = 0;
++ } else if (buf[0] == Ss3) {
++ // JIS X 0212-1990
++ if (IsEucChar(ch)) {
++ buf[1] = ch;
++ nbuf = 2;
++ } else {
++ // Error
++ result += replacement;
++ ++invalid;
++ nbuf = 0;
++ }
++ } else {
++ // JIS X 0208-1990
++ if (IsEucChar(ch)) {
++ uint u = conv->jisx0208ToUnicode(buf[0] & 0x7f, ch & 0x7f);
++ result += QValidChar(u);
++ } else {
++ // Error
++ result += replacement;
++ ++invalid;
++ }
++ nbuf = 0;
++ }
++ break;
++ case 2:
++ // JIS X 0212
++ if (IsEucChar(ch)) {
++ uint u = conv->jisx0212ToUnicode(buf[1] & 0x7f, ch & 0x7f);
++ result += QValidChar(u);
++ } else {
++ result += replacement;
++ ++invalid;
++ }
++ nbuf = 0;
++ }
++ }
++ if (state) {
++ state->remainingChars = nbuf;
++ state->state_data[0] = buf[0];
++ state->state_data[1] = buf[1];
++ state->invalidChars += invalid;
++ }
++ return result;
++ }
++
++ int QEucJpCodec::_mibEnum()
++ {
++ return 18;
++ }
++
++ QByteArray QEucJpCodec::_name()
++ {
++ return "EUC-JP";
++ }
++
++ QT_END_NAMESPACE